CN102259658B - Stroller And Its Guide Arm - Google Patents

Abstract

The stroller (10) has an armrest (60), a front leg (12) and a rear leg (14) rotatably connected to the armrest (60), and a rotatably connected armrest (60) via a bracket ( 38) A connecting rod (30) rotatably connected to the rear leg (14). In addition, the stroller (10) further includes an anti-clamping member (70) supported on the armrest (60) or the connecting rod (30). The anti-pinch component (70) fills up the gap between the handrail (60) and the connecting rod (30).

Description

Protective arms for prams and prams

technical field

The present invention relates to a foldable stroller and a protective arm of the stroller, in particular to a protective arm capable of preventing clothing, etc. Baby carriage in the gap and protective arms of the stroller.

Background technique

Many kinds of baby carriages have been proposed and put into practical use when taking infants outdoors. Almost all baby carriages currently used can be folded from an unfolded state in which a baby is seated to a folded state suitable for storage.

In the foldable stroller, various structural members such as armrests are rotatably connected, and each structural member can be folded by turning.

However, when the armrest is rotated with respect to a structural member rotatably connected to the armrest, for example, a push rod, a gap is usually generated between the armrest and the structural member. Therefore, in the folding operation or in the unfolding operation, there is a possibility that a disadvantageous situation in which clothes are caught in the gap between the armrest and the structural member, and even fingers are caught in the gap.

Contents of the invention

The present invention has been made in view of such a problem, and its object is to provide a device capable of preventing clothing, etc. from being caught in a gap generated between the armrest and other structural members rotatably connected to the armrest during the folding operation or unfolding operation. , and make the overall lightweight stroller and the protective arm of the stroller.

The present invention is a foldable stroller, which is characterized in that it comprises: armrests; front legs and rear legs are freely rotatably connected to the armrests; connecting rods are rotatably connected to the armrests and rear legs; The component is supported on the armrest or the connecting rod, and fills the gap between the armrest and the connecting rod.

The present invention is a stroller, which is characterized in that the armrest has an armrest body and an extension extending from the rear end of the armrest body and rotatably connected to the connecting rod; Gaps between connecting rods are filled.

The present invention is a stroller characterized in that an anti-pinch member is embedded in an upper end of a connecting rod and is supported by the connecting rod.

The present invention is a stroller characterized in that the trapping preventing member is fixed to the connecting rod by a connecting member that connects the armrest to the connecting rod.

The present invention is a stroller characterized in that the entrapment prevention member has a portion having an arc-shaped profile in a cross section perpendicular to the rotation axis of the armrest and the connecting rod.

The present invention is a stroller characterized in that the trapping preventing member is slidably supported on the armrest and pushed toward the connecting rod by a spring.

The present invention is a stroller characterized in that a rail for slidably supporting the trapping prevention member is formed on the armrest.

The present invention is a foldable stroller, which is characterized in that it comprises: armrests; front legs and rear legs are freely rotatably connected to the armrests; hand push rods are rotatably connected to the armrests and rear legs; Insert parts, support on the armrest or push rod, and fill the gap between the armrest and the push rod.

The present invention is a stroller, which is characterized in that the armrest has an armrest body and an extension extending from the rear end of the armrest body and rotatably connected to the hand push rod; Fill the gap with the hand push rod.

The present invention is a baby carriage, characterized in that the anti-pinch component is fixed on the push rod through a connecting member that connects the armrest and the push rod.

The present invention is a stroller characterized in that the entrapment preventing member has a portion having an arc-shaped profile in a cross section perpendicular to the rotation axis of the armrest and the push rod.

The present invention is a baby stroller, characterized in that the anti-pinch component is slidably supported on the armrest, and is pushed toward the hand push rod by a spring.

The present invention is a stroller characterized in that a rail for slidably supporting the trapping prevention member is formed on the armrest.

The present invention is a protective arm of a stroller, which is arranged to extend between a pair of armrests of the stroller, and is composed of a pair of end portions connected to the pair of armrests and an intermediate member provided between the pair of end portions. It is characterized in that the intermediate part has: a core part extending between a pair of handrails and having elasticity; a pair of soft parts sandwiching the core part and being softer than the core part; protective parts provided on each The outer surface of the soft part protects the soft part; the core part is composed of a hard part and a soft resin part arranged in parallel on the hard part.

The present invention is a protective arm of a stroller, characterized in that the rigid part is made of polypropylene tape.

The present invention is a protective arm for a stroller, characterized in that a detachable exterior base material is provided on the outer surface of the protective member.

The present invention is a protective arm for a stroller, wherein a core part is provided separately from a pair of soft parts.

The present invention is a protective arm of a stroller, which is characterized in that the outer surface of each soft component is covered by a protective component; each soft component is mounted on a core part with the protective component sandwiched between them.

The present invention is a stroller, which is characterized in that it comprises: a pair of rear legs; brake bearings installed on the rear legs; axles installed on the brake bearings; rear wheels installed on the outer ends of the axles , which is composed of a single wheel; the connecting pipe extends between the brake bearings and connects the brake bearings.

The present invention is a stroller characterized in that a collar is attached to the inner end of each axle, and a connecting protrusion is provided on the inner surface of each brake bearing, and the collar of each axle and each brake bearing The connection protrusion is fitted into the end of the connection pipe.

The present invention is a stroller characterized in that the connecting protrusions of the brake bearings and the collars of the axles constitute a part of an elliptical outer edge, and the connecting pipe has an elliptical inner edge corresponding to the elliptical outer edge.

The present invention is a stroller characterized in that each stopper bearing has a claw on the connecting protrusion, and an engaging hole for engaging the claw is provided at the end of the connecting pipe.

Description of drawings

Fig. 1 is a partial perspective view showing Embodiment 1-1 of the stroller according to Embodiment 1 of the present invention.

FIG. 2 is an exploded perspective view of FIG. 1 .

Fig. 3 is a diagram illustrating the function of the trapping prevention member.

Fig. 4 is a perspective view showing a schematic configuration of the stroller.

Fig. 5 is a side view showing a schematic structure of the stroller, and is a view showing a state where the hand push lever is at a rear pressing position.

Fig. 6 is a side view showing a schematic structure of the stroller, and is a view showing a state where the hand push lever is at a facing pressing position.

Fig. 7 is a side view showing the stroller, showing a folded state of the stroller.

Fig. 8 is a partial perspective view showing a first-second embodiment of the stroller of the present invention.

Fig. 9 is a partial plan view showing the stroller.

Fig. 10 is a perspective view showing a schematic configuration of the stroller.

Fig. 11 is a side view showing the stroller, showing a folded state of the stroller.

Fig. 12 is a partial perspective view showing first to third embodiments of the stroller of the present invention.

Fig. 13 is a partial sectional view showing the stroller.

Fig. 14 is a diagram illustrating the function of the trapping preventing member.

Fig. 15 is a partial perspective view showing first to fourth embodiments of the stroller of the present invention.

Fig. 16 is a perspective view showing a schematic configuration of a second embodiment of the present invention with an assembled guard arm.

Fig. 17 is a longitudinal sectional side view of the stroller.

Fig. 18 is an enlarged side view of the support frame and the side plate portion of the backrest portion.

Fig. 19 is a plan view of the back support frame and the headrest.

Fig. 20 is an explanatory view of the operation of the back support frame and the headrest.

Fig. 21 is an explanatory view showing the operation of the back support frame and the headrest during folding.

Fig. 22 is a plan view showing an embodiment of the protective arm of the present invention.

Fig. 23 is an A-A sectional view of the protective arm shown in Fig. 22 .

Fig. 24 is a schematic view showing a B-B cross section of the shield arm shown in Fig. 22 .

Fig. 25 is a schematic diagram showing the vertical movement of the protective arm of the present invention.

Fig. 26 is a side sectional view showing a modified example of the guard arm of the present invention.

27 is a perspective view showing an example of a stroller in which the left and right rear wheels are composed of single wheels according to a third embodiment of the present invention.

Fig. 28 is an exploded perspective view of the rear wheel mounting part of the present invention.

Fig. 29 is a schematic configuration diagram showing the connected state of the rear wheel of the present invention.

Detailed ways

Next, Embodiments 1-1 to 1-4 of the stroller of the present invention will be described with reference to the drawings.

first embodiment

(1st-1st embodiment)

First, Embodiment 1-1 of the stroller of the present invention will be described.

1 to 7 are diagrams showing Embodiment 1-1 of the stroller of the present invention, and first, the overall structure of the stroller 10 will be described using FIGS. 4 to 7 among them. Here, FIG. 4 is a perspective view showing a schematic structure of the baby carriage 10, and FIG. The side view of the schematic structure shows the state where the hand push bar 20 is in the facing pressing position, and FIG.

In addition, in this specification (including Embodiments 1-2 to 1-4 described later), terms such as "front", "rear", "upper", "lower", "front-rear direction" and "up-down direction" Unless otherwise indicated, the term means "front", "rear", "upper", "lower", " front and rear direction" and "up and down direction". More specifically, the "front and back direction" of the stroller 10 is the direction connecting the lower left and upper right of the paper in FIG. 4 , and the lower left of the paper in FIG. On the other hand, the "up-and-down direction" of the stroller 10 is a direction perpendicular to the front-to-back direction, and is the up-down direction on the paper surface in FIG. 4 . In addition, the stroller 10 in this embodiment is substantially symmetrical about the center line in the width direction (direction perpendicular to the front-rear direction and the up-down direction) along the front-rear direction as shown in FIGS. 4 and 7 .

As shown in FIGS. 4 to 6 , the stroller 10 is provided with: a pair of armrests 60, 60; The wheels 16, 16 are rotatably held respectively; the pair of front legs 12, 12 are a pair of rear legs 12, 12 which rotatably connect the armrest 60 with the respective upper end parts, and the wheels 16, 16 are rotatably held respectively. A pair of connecting rods 30, 30 rotatably connects the rear part of the armrest 60 to the respective upper parts, and rotatably connects the middle part of the rear leg 14 to the respective lower parts; a pair of side frames 40, 40 is to respectively connect the middle part of the front leg 12 and the lower part of the connecting rod 30 to a pair of side frames 40, 40, which are respectively rotatably connected to the front leg 12 and the connecting rod 30; The hand push rod 20 extending in a substantially U-shape connects the lower portions of the pair of connecting rods 30 and 30 to both end portions of the substantially U-shape. The rotation axis (rotation center) of the hand push rod 20 and the connection rod 30 and the rotation axis (rotation center) of the side frame 40 and the connection rod 30 coincide. In addition, the hand push rod 20 can be arranged at the back pressing position shown in FIG. 5 and the facing pressing position shown in FIG. 6 .

In addition, as shown in FIGS. 4 to 6 , the stroller 10 is further provided with a pair of brackets 38, 38, which are a pair of brackets 38, 38 respectively connecting the middle part of the rear leg 14 and the lower part of the connecting rod 30, They are rotatably connected to the rear leg 14 and the connecting rod 30, respectively. Therefore, the lower part of the connecting rod 30 is rotatably connected to the middle part of the rear leg 14 via the bracket 38 . In addition, the rotation axis (rotation center) of the bracket 38 and the connecting rod 30 coincides with the rotation axis of the push rod 20 and the connecting rod 30 and the rotation axis of the side frame 40 and the connecting rod 30 .

In addition, as shown in FIG. 4 and FIG. 6 , an entrapment prevention member 70 is provided on the upper end portion of the connecting rod 30 , but the entrapment prevention member 70 will be described later.

As shown in FIG. 4 , between the pair of front legs 12 , 12 are provided a footrest 44 and a front upper connection stay 42 connecting them. Among them, the front upper connecting stay 42 functions as a rotation axis of the side frame 40 and the front leg 12 as shown in the figure.

In addition, as shown in FIG. 4 , on the rear end portion of the side frame 40 , a back support frame 46 formed in a substantially U-shape is provided so as to be able to swing freely with respect to the side frame 40 . In addition, a base sheet 48 is laid in an area surrounded by the side frame 40 , the front upper connecting stay 42 and the back support frame 46 . On the rear side of the supporting frame 46, a reclining adjusting part 56 fixed between a pair of connecting rods 30 and 30 is provided. By adjusting the length of the reclining adjusting part 56, the reclining supporting frame can be adjusted. 46 incline angle.

As shown clearly in FIG. 6 , on the lower part of each connecting rod 30 , there is provided a slidably along the longitudinal direction of the connecting rod 30 , which engages with the end of the bracket 38 in the unfolded state and maintains the unfolded state. Locking part 32 . As shown in FIGS. 4 and 6 , each lock member 32 has an operating plate 34 protruding outward. On the other hand, on the lower portion of the hand push rod 20, as shown in FIG. The unlocking member 22 slides upward along the push rod 20 by operating a remote operation device 28 provided at a substantially central portion of the push rod 20 . When the lock release member 22 is pulled up, the lock release lever 24 engages with the operation plate 34 , the lock member 32 is pulled up, and the engagement between the lock member 32 and the bracket 38 is released.

In addition, as shown in FIGS. 4 to 6 , a locking member 26 that slides relative to the push rod 20 by operating the remote operation device 28 is provided at the middle portion of the push rod 20 . On the other hand, as shown in FIGS. 5 and 6 , each armrest 60 is provided with a pair of locking protrusions 61 a , 61 b that engage with the locking member 26 to restrict the rotation of the push rod 20 . By engaging the locking protrusion 61b ( FIG. 6 ) located at the rear with the locking member 26 and locking each other, as shown in FIG. 5 , the hand push rod 20 is fixed in a back pressing state. 20 extends upward substantially parallel to the connecting rod 30 . On the other hand, as shown in FIG. 6, the hand push rod 20 is fixed in a facing pressing state by the locking protrusion 61a (FIG. 5) provided at the front and the locking member 26 and locked with each other. , the push rod 20 extends upward substantially parallel to the rear leg 14 .

Next, the action when folding the stroller 10 having such a structure will be described.

First, if the hand push rod 20 is in the facing pushing position, before the folding operation, operate the remote operation device 28 to slide the locking member 26, so that the hand pushing rod 20 moves from the facing pushing position ( FIG. 6 ) to the back pushing position. pressure position (Figure 5).

Next, in the state where the hand push lever 20 is arranged at the back pressing position, first, by operating the remote operation device 28 to slide the lock member 32 via the lock release member 22, the engagement between the bracket 38 and the lock member 32 is released. . Next, the bracket 38 is rotated clockwise in FIG. 5 with respect to the rear leg 14 by temporarily pulling up the push rod 20 rearward and upward, and then pushing it downward. With this operation, the armrest 60 and the side frame 40 rotate clockwise in FIG. 5 with respect to the connecting rod 30 . Through such an operation, as shown in FIG. 7 , the hand push rod 20 is arranged substantially parallel to the front leg 12 in a side view, and the arrangement position of the hand push rod 20 is lowered.

As described above, as shown in FIG. 7 , the stroller 10 is folded and becomes compact in size in the front-rear direction and the up-down direction. In addition, in order to unfold the stroller 10 from the folded state, it is only necessary to follow the reverse order of the above-mentioned folding operation. That is, it is only necessary to rotate the bracket 38 counterclockwise in FIG. 7 with respect to the rear leg 14 and, accordingly, rotate the armrest 60 and the side frame 40 counterclockwise in FIG. 7 with respect to the connecting rod 30 .

Next, the structure and function of the trapping preventing member 70 will be described in detail mainly with reference to FIGS. 1 to 3 . Here, FIG. 1 is a partial perspective view showing the stroller, FIG. 2 is an exploded perspective view of FIG. 1 , and FIG. 3 is a diagram illustrating the function of the entrapment prevention member.

First, the armrest 60 will be described in further detail with reference to FIGS. 1 to 3 . In particular, as shown in FIG. 2 , the armrest 60 has a substantially U-shaped cross-section with an opening at the bottom, has an armrest body 62 composed of an upper portion 63 and two side portions 64 , 64 , and extends rearward from the side portions 64 of the armrest body 62 . A pair of extensions 66,66. As shown in FIG. 4 , the armrest main body 62 extends in the front-rear direction. The extension portion 66 extends from the side portions 64 of the armrest body 62 to both sides of the upper end portion of the connecting rod 30 disposed behind the armrest body 62 . Further, the extension portion 66 is rotatably connected to the connection rod 30 by a connection member (connection shaft) 68 passing through the pair of extension portions 66 and the upper end portion of the connection rod 30 .

As shown in FIGS. 1 to 3 , the entrapment prevention member 70 is configured so that the gap generated between the connecting rod 30 and the armrest 60 , more specifically, the gap between the connecting rod 30 and the upper part 63 of the armrest body 62 is formed. The gap created between the ends 65 is filled. In this embodiment, the entrapment preventing member 70 has a mounting portion 72 fitted in the upper end portion of the connecting rod 30 made of a pipe, and a gap filling portion 76 disposed in the gap between the connecting rod 30 and the armrest 60 .

Especially as shown in FIG. 3 , the mounting portion 72 is composed of a cover portion 73 functioning as a cover that blocks the upper side of the connecting rod 30 , and a pair of insertion portions 74 provided below the cover portion and arranged inside the connecting rod. As shown in FIG. 2 , holes 74 a through which the connection members 68 are inserted are formed in the respective insertion portions 74 . By inserting the connecting member 68 connecting the armrest 60 and the connecting rod 30 into the hole 74 a, the trapping preventing member 70 is supported while being fixed to the connecting rod 30 via the attachment portion 72 .

On the other hand, the gap filling portion 76 hangs down from the mounting portion 72 fitted on the upper end portion of the connecting rod 30 along the face of the connecting rod 30 facing the armrest main body 62 side. The gap filling portion 76 includes an arc-shaped portion 77 having an arc-shaped profile in FIG. 65. As shown in FIG. 3 , the arcuate portion 77 has a shape along the movement locus of the rear end 65 of the upper portion 63 of the armrest main body 62 when the armrest 60 is rotated relative to the connecting rod 30 around the rotation axis defined by the connecting member 68. .

The arc portion 77 has a certain thickness along the width direction, but also preferably has a cross-sectional profile along the moving locus of the rear end 65 of the facing armrest body 62 at any position in the width direction. In this case, the arcuate portion 77 has a profile corresponding to the profile of the rear end 65 of the armrest main body 62 in the width direction along the width direction. As shown in FIG. 2 , in this embodiment, the arc-shaped portion 77 also has a linear profile along the width direction corresponding to the rear end 65 of the armrest body 62 having a linear profile along the width direction.

Next, the operation of the entrapment preventing member 70 when the baby carriage 10 is folded from the unfolded state ( FIG. 6 ) and unfolded from the folded state will be described.

As described above, when the baby carriage 10 is folded from the unfolded state, the armrest 60 turns relative to the connecting rod 30 . Conversely, when the baby carriage 10 is unfolded from the folded state, the armrest 60 is also rotated with respect to the connecting rod 30 . Furthermore, as shown in FIG. 3 , when the armrest 60 is rotated relative to the connecting rod 30 , a gap is generated between the armrest 60 and the connecting rod 30 , and the size of the gap changes. This is due to the fact that the rotation shafts of the armrest 60 and the connecting rod 30 are not arranged on the surface of the connecting rod 30 facing the side of the armrest main body 62 . Therefore, in order to firmly connect the armrest 60 to the connecting rod 30, the extension part 66 of the armrest 60 is connected to the center of the connecting rod 30 (the surface facing the side of the armrest main body 62 (the front surface) and the surface on the opposite side) (the center of the surface of the rear side), this phenomenon is unavoidable.

This gap is created between the rear end 65 of the upper portion 63 of the armrest body 62 and the surface of the connecting rod 30 . Furthermore, when the armrest 60 is disposed at a position where a straight line connecting the rotation axis of the armrest 60 with respect to the connecting rod 30 and the rear end 65 is perpendicular to the surface of the connecting rod 30 , the size of the gap becomes the largest. Also, since the gap is exposed toward the person who folds or unfolds the stroller 10, there is a possibility that clothing or fingers are caught in the gap.

On the other hand, in the present embodiment, the entrapment preventing member 70 that fills the gap is supported by the upper end portion of the connecting rod 30 . In addition, the arc-shaped portion 77 of the entrapment prevention member 70 disposed in the gap filling portion 76 between the armrest main body 62 and the connecting rod 30 moves along the rear end 65 in a cross-sectional view perpendicular to the rotation axis of the armrest 60 . The outline of the trajectory. Therefore, the arc-shaped portion 77 is formed so as to fill the gap that changes due to the movement of the armrest 60 relative to the connecting rod 30 . Therefore, during the folding operation or the unfolding operation, it is possible to prevent clothing or the like from being caught in a gap generated between the armrest main body 62 of the armrest 60 and the connecting rod 30 .

As described above, according to the present embodiment, the baby carriage 10 is provided with the trapping preventing member 70 which is supported by the connecting rod 30 and fills the gap between the armrest main body 62 of the armrest 60 and the connecting rod 30 . Therefore, it is possible to prevent clothing and the like from being caught in the gap between the armrest body 62 and the connecting rod 30 .

In addition, according to the present embodiment, the trapping preventing member 70 is supported by the upper end portion of the connecting rod 30 made of a pipe material, and the trapping preventing member 70 also functions as a cover material of the connecting rod 30 . Conversely, the anti-pinch member 70 has the function of filling the gap in the commonly used cover material, and does not increase the number of parts.

Furthermore, according to the present embodiment, the entrapment preventing member 70 is fixed to the connecting rod 30 via the connecting member (shaft) 68 connecting the armrest 60 and the connecting rod 30 . Therefore, the trapping preventing member 70 can be firmly attached with a simple structure without increasing the number of parts.

Furthermore, according to the present embodiment, the entrapment prevention member 70 has an arcuate portion 77 having an arcuate profile in a cross section perpendicular to the rotation axis of the armrest 60 and the connecting rod 30 . And, the arc portion 77 has a profile along the moving path of the rear end 65 of the armrest body 62 of the armrest 60 in rotation. Thus, the arc-shaped portion 77 can fill the gap corresponding to the change in size of the gap in the rotation of the armrest 60 relative to the connecting rod 30 . Thereby, it is possible to more reliably prevent the entrapment of clothing or the like.

Furthermore, according to the present embodiment, the entrapment preventing member 70 is composed of the mounting portion 72 fitted to the connecting rod 30 and the gap filling portion 76 hanging from the mounting portion 72 toward the gap between the armrest body 62 and the connecting rod 30 of the armrest 60 . Therefore, the size of the baby carriage as a whole, and also the size of the connecting rod 30 and the armrest 60 are not larger than usual, and it is possible to prevent the entrapment of clothes and the like.

In addition, in this embodiment, it is illustrated that the anti-clamping member 70 is inserted into the upper end of the connecting rod 30, and is supported and fixed on the connecting rod 30 by being penetrated by the connecting member 68 together with the connecting rod 30 and the armrest 60. example, but not limited to. As long as it is arranged so as to fill the gap between the armrest 60 and the connecting rod 30 , the trapping preventing member 70 can be supported by various methods. For example, the trapping preventing member 70 may be fixed to the connecting rod 30 only by being fitted into the upper end of the connecting rod 30 . Alternatively, as described in detail in the second embodiment, the entrapment preventing member 70 may be fixed to the connecting rod 30 by passing through the connecting member 68 together with the connecting rod 30 instead of being fitted into the connecting rod 30 .

(1st-2nd embodiment)

Next, the first-second embodiment will be described mainly using FIGS. 8 to 11 .

In the 1st-2 embodiment shown in Fig. 8 to Fig. 11, as the overall structure of the baby carriage, in addition to removing the connecting rod 30 and disposing the hand push rod 20 at the position where the connecting rod 30 was originally set, and as an anti-pinch Except for the configurations of the insertion member 70 and the mounting portion 72a, it is substantially the same as the first-first embodiment described with reference to FIGS. 1 to 7 . The same reference numerals are assigned to the same parts, and repeated detailed descriptions are omitted.

In addition, FIG. 8 is a partial perspective view showing the baby carriage 10, FIG. 9 is a partial plan view showing the baby carriage 10, FIG. 10 is a perspective view showing a schematic structure of the baby carriage 10, and FIG. the collapsed state of . 10 and 11 , the entrapment prevention member 70 is omitted, and FIG. 10 and FIG. 11 are also diagrams showing the overall structure of a stroller of a fourth embodiment described later.

As shown in Fig. 10 and Fig. 11, in the first-second embodiment, the stroller 10 is equipped with: a pair of armrests 60, 60; The connected pair of rear legs 14, 14 holds the wheels 16, 16 rotatably, respectively; The wheels 16, 16 are respectively rotatably held; a pair of hand push rods 20, 20 is a hand push rod 20 extending in a substantially U-shape, and is rotatably connected to the rear part of a pair of armrests 60, 60, and rotatably The middle part of the rear leg 14 is connected to the two ends of the roughly U shape; a pair of side frames 40, 40 are respectively connected to the middle part of the front leg 12 and the two ends of the U shape of the hand push rod 20 A pair of side frames 40, 40 are rotatably connected to the front leg 12 and the push rod 20, respectively.

In addition, as shown in FIGS. 10 to 11 , the stroller 10 further includes a pair of brackets 38 and 38 , which are a pair of brackets 38 and 38 respectively connecting the middle portion of the rear leg 14 and the two ends of the roughly U-shaped push rod 20 . The brackets 38, 38 are rotatably connected to the rear leg 14 and the push rod 20, respectively. Therefore, the lower portion of the push rod 20 is rotatably coupled to the middle portion of the rear leg 14 via the bracket 38 . In addition, the bracket 38 coincides with the rotation axis (rotation center) of the hand push rod 20 and the rotation axis (rotation center) of the hand push rod 20 and the side frame 40 .

As shown in FIG. 10 , the lock member 32 engaged with the bracket 38 to maintain the unfolded state is provided on the lower part of the push rod 20 . The locking member 32 is moved upward along the hand lever 20 by operating the remote operation device 28 provided on the hand lever 20 , whereby the engagement between the lock member 32 and the bracket 38 is released.

The stroller 10 in this embodiment can be folded from the unfolded state and unfolded from the folded state by the same method as that described in the first-first embodiment described above. That is, the stroller 10 can be folded or unfolded by rotating the bracket 38 relative to the rear legs 14 and, accordingly, rotating the armrest 60 and the side frame 40 relative to the push bar 20 .

As shown in FIGS. 8 and 9 , the entrapment preventing member 70 in this embodiment has a mounting portion 72 a connected to the push rod 20 and a gap filling portion disposed in the gap between the connecting rod 30 and the armrest 60 . 76.

Among them, the gap filling portion 76 has the same structure as that of the first-first embodiment described above. That is, the gap filling portion 76 includes an arcuate portion 77 having an arcuate profile in a cross-sectional view perpendicular to the rotation axis of the armrest 60 and the push rod 20 and facing the rear end 65 of the upper portion 63 of the armrest body 62 . The arc portion 77 is shaped to follow the movement locus of the rear end 65 of the upper portion 63 of the armrest main body 62 when the armrest 60 rotates relative to the push rod 20 around the rotation axis defined by the connecting member 68 . In addition, the arc-shaped portion 77 has a profile corresponding to the profile of the rear end 65 of the armrest body 62 in the width direction along the width direction, and has a linear profile along the width direction in the illustrated example.

On the other hand, as shown in FIG. 9 , the mounting portion 72 a is formed of a pair of plate members and extends from both sides of the gap filling portion 76 to both sides of the hand push rod 20 disposed behind the gap filling portion 76 . Moreover, the attachment part 72a is arrange|positioned inside the extension part 66 of the armrest 60, and is penetrated by the connection member (connection shaft) 68 together with the extension part 64 and the push rod 20. As shown in FIG. And the attachment part 72a is fixedly supported by the hand push rod 20 by the penetration of this connection member 68. As shown in FIG.

According to such this embodiment as well, it is possible to exhibit the same effects as those of the first-first embodiment described above.

That is, according to the present embodiment, since the stroller 10 is provided with the trapping preventing member 70 which is supported by the push rod 20 and fills the gap between the armrest body 62 of the armrest 60 and the push rod 20, it is possible to prevent the trapping of clothes, etc. into the gap between the armrest main body 62 and the hand push rod 20 . In particular, according to the present embodiment, the anti-pinch member 70 has an arc-shaped portion 77 having an arc-shaped profile on a section perpendicular to the rotation axis of the handrail 60 and the push rod 20, and the arc-shaped portion 77 has a The profile of the travel path of the rear end 65 of the armrest body 62 of the armrest 60 . Therefore, the arc-shaped portion 77 can fill the gap corresponding to the change in size of the gap in the rotation of the armrest 60 relative to the push rod 20 . Thereby, it is possible to more reliably prevent the entrapment of clothing or the like.

In addition, according to this embodiment, since the anti-pinch member 70 is fixed to the push rod 20 through the connecting member (shaft) 68 that connects the armrest 60 and the push rod 20, the anti-pinch member 70 can be firmly attached and assembled. It can also be done very easily.

Furthermore, according to the present embodiment, the trapping preventing member 70 is supported by the push rod 20 via the plate-shaped attachment portion 72 a arranged between the push rod 20 and the extension portion 66 of the armrest 60 . Therefore, it is possible to prevent clothing and the like from being trapped without greatly changing the shapes of the push rod 20 and the armrest 60 .

(1st-3rd embodiment)

Next, first to third embodiments will be described mainly using FIGS. 12 to 14 .

In the first to third embodiments shown in FIGS. 12 to 14 , except that the structure of the entrapment prevention member 80 is different from the structure for supporting the entrapment prevention member 80 , it is different from the first embodiment described with reference to FIGS. 1 to 7 . 1-1 Embodiments are basically the same. The same reference numerals are assigned to the same parts, and repeated detailed descriptions are omitted.

12 is a partial perspective view showing the stroller 10, FIG. 13 is a partial cross-sectional view showing the stroller 10, and FIG.

In FIGS. 12 to 14 , the overall structure of the stroller 10 is omitted, but the overall structure of the stroller in this embodiment includes a mechanism that supports the armrest 60 and pushes the trapping preventing member 80 toward the connecting rod 30 . Other than that, it is substantially the same as the overall structure of the stroller of Embodiment 1-1 described mainly using FIGS. 4 to 7 .

As shown in FIG. 13 , the entrapment prevention member 80 in this embodiment is composed of a sliding portion 86 made of a plate extending approximately forward and backward, and a plate formed at the rear end of the sliding portion 86 and extending approximately vertically. The receiving portion 84 of the receiving portion 84 and the pressing portion 82 formed of a plate material provided on the upper end of the receiving portion 84 and extending in the substantially front-rear direction are constituted. On the other hand, on the armrest main body 62 of the armrest 60, a rail 88 for receiving the sliding portion 86 of the trapping preventing member 80 from below, and a protrusion provided at a position facing the rail 88 via the sliding portion 86 are formed. 89.

The rail 88 spans between the pair of side portions 64 of the armrest body 62 and is formed of a plate extending substantially in the front-rear direction. The front end of the rail 88 is connected to the upper portion 63 of the armrest body 62 . On the other hand, the protruding portion 89 is formed of a plate material hanging substantially vertically from above, and the sliding portion 86 of the trapping preventing member 80 is disposed between the end portion and the rail 88 . Therefore, the sliding portion 86 of the trapping prevention member 80 is slidably supported from below by the rail 88 in the front-rear direction, and is regulated by the protruding portion 89 to move in the vertical direction.

Furthermore, as shown in FIG. 13 , a compression spring 90 is provided between the receiving portion 84 of the trapping preventing member 80 and the protruding portion 89 of the armrest 60 above the sliding portion 86 of the trapping preventing member 80 . The receiving portion 84 is biased by the spring 90 in a direction away from the protruding portion 89 .

As shown in FIGS. 13 and 14 , the rear portion of the armrest main body 62 of the armrest 60 extends substantially parallel to the rail 88 in the substantially front-rear direction. Moreover, the sliding portion 86 of the anti-entrapment member 80 is arranged on the rail 88, and when the anti-entrapment member 80 slides relative to the armrest 60, the pressing portion 82 of the anti-entrapment member 80 is positioned on the rear end 65 of the armrest body 62. The vicinity moves substantially parallel to the rear portion of the armrest main body 62 . Furthermore, as shown in FIG. 12 , the end profile of the pressing portion 82 of the entrapment prevention member 80 has a shape corresponding to the profile of the facing connecting rod 30 . In this embodiment, the end profile of the pressing portion 82 has an arc-shaped concave portion corresponding to the substantially arc-shaped profile of the connecting rod 30 .

In the stroller 10 constituted as above, even if there is a gap between the armrest 60 and the connecting rod 30 when the armrest 60 rotates relative to the connecting rod 30, as shown in FIG. The spring 90 clamped between the component 80 and the armrest 60 pushes and extends from the rear end 65 of the armrest body 62 until it abuts against the connecting rod 30 . Therefore, the gap generated between the rear end 65 of the armrest body 62 and the connecting rod 30 can be filled by the trapping preventing member 80 . Therefore, it is possible to prevent clothing or the like from being caught in a gap generated between the armrest main body 62 of the armrest 60 and the connecting rod 30 during the folding operation or the unfolding operation.

As described above, according to the present embodiment, the trapping preventing member 80 , which is slidably supported by the armrest 60 and biased toward the connecting rod by the spring 90 , is provided. Therefore, it is possible to prevent clothing and the like from being caught in the gap between the armrest main body 62 and the connecting rod 30 . In particular, since the anti-entrapment member 80 is biased by the spring 90 , the anti-entrapment member 80 protrudes from the armrest 60 until it abuts on the connecting rod 30 even if the size of the gap changes during the rotation of the armrest 60 . Therefore, a gap whose size changes can be filled by the trapping prevention member 80, thereby preventing trapping of clothing or the like more reliably.

Furthermore, according to the present embodiment, the entrapment preventing member 80 and the mechanism for supporting and pressing the entrapment preventing member 80 are arranged inside the armrest 60 (inside the opening portion). In addition, since these are constituted by a very simple structure, the overall size of the stroller and the size of the connecting rod 30 and the armrest 60 can be prevented from becoming larger than usual, and it is possible to prevent the entrapment of clothes and the like.

Furthermore, according to the present embodiment, when the entrapment prevention member 80 slides relative to the armrest 60 , the pressing portion 82 of the entrapment prevention member 80 extending from the armrest body 62 moves near the rear end 65 of the upper portion 63 of the armrest body 62 . . Therefore, it is also possible to prevent clothing and the like from being caught between the rear end 65 of the armrest body 62 and the protruding portion 82 of the trapping prevention member 80 .

Furthermore, according to the present embodiment, the profile of the end portion of the pressing portion 82 of the entrapment prevention member 80 facing the connecting rod 30 has a shape corresponding to the profile of the facing connecting rod 30 . Therefore, the gap between the armrest body 62 and the connecting rod 30 can be more reliably filled by the trapping preventing member 80 .

In addition, in this embodiment, unlike the above-mentioned first-first embodiment, the trapping prevention member 80 is supported by the armrest 60 . Therefore, as shown in FIG. 14 , a cover material 31 is provided on an upper end portion of a connecting rod 30 made of a pipe material.

In addition, in this embodiment, an example is shown in which the rail 88 is constituted by a plate spanned between the side portions 64 and 64 of the armrest main body 62, but it is not limited to this, and as long as the entrapment preventing member 80 can be slidably supported, Various changes are possible. For example, the rail may be constituted by a pair of elongated members protruding inwardly from the side portions 64 and 64 of the armrest main body 62 facing each other and extending substantially in the front-rear direction.

(1st-4th embodiment)

Next, the first to fourth embodiments will be described mainly using FIG. 15 .

The 1st-4th embodiment shown in FIG. 15 combines the 1st-4th embodiment mainly described using FIG. 12 to FIG. The entrapment prevention member 80 and the mechanism for supporting and pressing the entrapment prevention member 80 according to the third embodiment. Therefore, in FIG. 15 , the same reference numerals are given to the same parts as those used in FIGS. Repeated detailed description of the entrapment prevention member 80 and the mechanism supporting and pressing the entrapment prevention member 80 described in the first to third embodiments will be omitted.

As shown in FIG. 15 , the handrail 60 is rotatably connected to the hand push rod 20 , the anti-entrapment component 80 is slidably supported on the armrest 60 , and is oriented by the spring 90 arranged between the armrest 60 and the anti-entrapment component 80 . Hand push rod 20 pushes.

In such this embodiment, the trapping prevention member 80 slidably supported on the armrest 60 and biased toward the hand push rod 20 by the spring 90 can reliably prevent clothing or the like from being caught between the armrest main body 62 and the hand push rod 20 . In the gap of the rod 20. In particular, since the anti-entrapment member 80 is biased by the spring 90 , the anti-entrapment member 80 protrudes from the armrest 60 until it abuts on the hand push rod 20 even if the size of the gap changes during the rotation of the armrest 60 . Therefore, a gap whose size changes can be filled by the trapping prevention member 80 , thereby preventing trapping of clothing or the like more reliably.

Moreover, according to this embodiment, the trapping prevention member 80 and the mechanism which supports and presses the trapping prevention member 80 are provided in the inside (opening part) of the armrest 60. As shown in FIG. Moreover, since these are constituted by a very simple structure, it is possible to prevent the trapping of clothes and the like without making the overall size of the stroller and the size of the push rod 20 and the armrest 60 larger than usual.

Furthermore, according to the present embodiment, when the entrapment prevention member 80 slides relative to the armrest 60 , the pressing portion 82 of the entrapment prevention member 80 extending from the armrest body 62 moves near the rear end 65 of the upper portion 63 of the armrest body 62 . . Therefore, it is also possible to reliably prevent clothing or the like from being caught between the rear end 65 of the armrest body 62 and the protruding portion 82 of the trapping preventing member 80 .

Furthermore, according to the present embodiment, the contour of the end portion of the pressing portion 82 of the entrapment preventing member 80 facing the push rod 20 has a shape corresponding to the contour of the facing push rod 20 . Therefore, the gap between the armrest body 62 and the push rod 20 can be more reliably filled by the trapping prevention member 80 .

2nd embodiment

Next, a second embodiment of the present invention will be described with reference to the drawings.

First, a stroller 190 incorporating the protective arm 118 of the stroller according to the present invention will be described with reference to FIGS. 16 to 21 .

Fig. 16 is a perspective view showing the general structure of the stroller of the present invention, and Fig. 17 is a longitudinal sectional side view thereof. The stroller 190 has: a pair of left and right front legs 112 with a front wheel 111; a pair of left and right rear legs 114 with a rear The wheel 113; the push rod 115 is bent into a substantially U-shape; a pair of left and right handrails 116; two left and right pipes 117 are respectively pivotally mounted to the rear ends of the handrails 116 and extend parallel to each other.

The top ends of the front legs 112 and the rear legs 114 are pivotally attached to the front ends of the armrest 116 . The left and right front legs 112 are connected by a front leg connecting stay 122 which doubles as a footrest, and the left and right rear legs 114 are connected by a rear leg connecting stay 123 . The lower end of an L-shaped bracket 119 is pivotally attached to the rear leg 114 via a shaft 119 a , and the middle portion thereof is pivotally attached to the lower end of the pipe 117 by a shaft 130 . That is, on the lower ends of the above-mentioned left and right pipes 117, a frame mounting member 131 ( FIG. 18 ) is pivotally mounted on the inner surfaces facing each other through a shaft 130 , and furthermore, on the shaft 130 , it is connected to the pipe 117 disposed on the shaft 130 . The lower end of the U-shaped hand push rod 115 is pivotally mounted on the outer bracket 119 of the outer side.

Front ends of side frames 124 are pivotally attached to intermediate positions of the left and right front legs 112 , and the front ends of the left and right side frames 124 are connected by front upper connecting stays 132 . In addition, the rear end of the side frame 124 is fixedly connected to the middle position of the frame mounting part 131 . On the frame mounting part 131, a stay mounting part 131a protrudes from the fixed connection position of the side frame 124 at the position below the side opposite to the shaft 130, and the rear side is fixedly connected to the stay mounting part 131a. The upper connecting stay 133 connects the left and right frame mounting members 131 to each other via the rear upper connecting stay 133 . On the other hand, on the above-mentioned left and right frame mounting members 131, between the above-mentioned shaft 130 and the upper rear side connecting stay 133, a back support frame 134 formed in an inverted U-shape is pivotally mounted via a shaft 135. At the left and right front ends, an inverted U-shaped back support frame 134 is swingably attached to the above-mentioned frame attachment member 131 ( FIG. 18 ).

A lock member 120 that engages with the free end of the bracket 119 in the unfolded state of the stroller to maintain the unfolded state is slidably attached to the lower end portion of the tube 117 . On the other hand, on the push rod 115 , a lock release member 138 operated by a remote operation device 137 provided on the push rod 115 is slidably attached along the push rod 115 . When the above-mentioned lock release member 138 is pulled up by the above-mentioned remote operation device 137, the lock member 120 is pulled up through the lock release lever 139 provided on the lock release member 138 and the operation plate 140 provided on the lock member 120. , the lock of the bracket 119 is released, and the stroller body can be folded in half so that the front legs 112 and the rear legs 114 are substantially parallel.

In addition, on the outer surface of the armrest 116 and the pipe 117, there are fixed locking protrusions 141 protruding laterally (only one of them is shown). The locking member 142 engaged in the concave portion of the locking protrusion 141 is pulled up to release the locking member 142 from the locking protrusion 141, and the hand push lever 115 is swung backward or forward by pulling the locking member 142 upward. , the hand push rod 115 can be brought into a facing pressing state or a back pressing state.

The above-mentioned left and right side frames 124, 124 and the front upper connecting stays 132 connecting their front ends constitute a U-shaped seat support frame. The finished part is laid with base material 146 for the bottom seat. That is, both side edges of the seat portion 146 a of the bottom seat base material 146 are attached to the left and right side frames 124 , and front end edges of the seat portion 146 a are attached to the front upper connecting stay 132 . Both side edge parts of the backrest part 146b connected to the said seat part 146a are attached to the left and right side frame parts 134a of the backrest part support frame 134. As shown in FIG. Furthermore, the rear end edge portion of the backrest portion 146b is attached to the horizontal bar portion 134b connecting the left and right side frame portions 134a of the backrest portion support frame 134, and the bottom seat base material 146 is aligned in the front-rear direction and the left-right direction. Set in tension. And the bottom seat tension member 147 is sewn to the back side of the seat part 146a of the base material 146 for bottom seats stretched on the seat part support frame. The front end portion of the bottom seat tensioning member 147 is attached to the rear upper connecting stay 133 located below the pivot mounting shaft 135 of the back support frame 134 in the expanded state of the stroller ( FIG. 17 . ). Then, the seat portion 146a of the bottom seat is also stretched rearward by the bottom seat tensioning member 147, and becomes a state of being stretched from all directions, so that the bottom seat base material 146 can be brought into a tensioned state more reliably.

In addition, on the back side of the back support frame 134 provided with the bottom seat 146, an inclination stretching band 148 fixedly connected to the left and right pipes 117 is arranged. By adjusting the length of the inclination stretching band 148, The inclination angle of the abutting portion 146a can be adjusted.

In this way, by stretching the bottom seat base material 146 in the tensioned state in the front-rear direction and the left-right direction, the rigidity of the bottom seat can be maintained, and a plate material like a conventional stroller can be eliminated, thereby achieving weight reduction. In addition, since the rear upper connecting stay 133 is located below the pivot of the back support frame 134, even if the bottom seat base material 146 bends under the infant's own weight, the buttocks will not hit the above-mentioned position. The upper part of the rear side is connected to the strut 133, which will not cause discomfort.

On the other hand, as shown in FIG. 18 , to the shaft 130 connecting the pipe 117 and the frame mounting member 131 , the front end of the side plate 150 for protecting the side of the infant is pivotally attached. In addition, as shown in FIG. 19, on the horizontal rod portion 134b connecting the left and right side frame portions 134a of the above-mentioned back support frame 134, bearings 151, 151 are provided on the left and right portions, and on the bearings 151, 151 , the lower end of the head rest (head rest) 152 that protects the head of the infant is installed pivotally by the shaft 153. Furthermore, pins 154 protrude from both left and right side portions of the headrest 152 , and the pins 154 engage with elongated holes 155 formed in rear end portions of the side plates 150 .

FIG. 18 is a diagram showing a state in which the back support frame 134 is tilted and the infant is laid down, and the headrest 152 is raised upward with respect to the plane of the back support frame 134 . Therefore, if the length of the above-mentioned inclination stretching belt 148 is adjusted to increase the inclination angle of the above-mentioned back support frame 134 as shown in FIG. When the hole 155 is engaged, the headrest 152 swings clockwise around the shaft 153 in FIG. 18 , and the headrest 152 and the back support frame 134 are substantially in the same plane. On the other hand, in the state shown in FIG. 20 , if the inclination stretching belt 148 is loosened, the side plate 150 and the back support frame 134 will swing downward together, and the headrest 152 will swing upward accordingly to obtain the position shown in FIG. 18 . In the state shown, the head of the infant can be protected.

In addition, in the case of making the above-mentioned 2-fold state, after making the side plate 150 and the back support frame 134 into the state shown in FIG. , can be folded in the same way as conventional strollers. FIG. 21 shows the state of the back support frame 134, the side plate 150, and the like in the folded state.

Next, the protective arm 118 of the stroller of the present invention will be described in more detail with reference to FIG. 16 and FIG. 22 to FIG. 25 .

Here, FIGS. 22 to 25 are diagrams showing explanations of the guard arm 118 .

As shown in Fig. 16 and Fig. 22, the protective arm 118 of the stroller of the present invention is extended and configured between a pair of armrests 116 of the stroller, and is formed by a pair of ends 180 connected to the pair of armrests 116 and a An intermediate part 185 between the ends 180 is formed.

As shown in Fig. 16, Fig. 22 and Fig. 23, the middle member 185 extends between a pair of armrests 116, and has an elastic core part 170, which is set across the core part 170 and is softer than the core part 170. A pair of soft members 161 and a protection member 162 provided on the outer surface of each soft member 161 to protect the soft members 161 .

Among them, as shown in FIG. 23 , the core member 170 is composed of a polypropylene tape (hard member) 172 and a soft resin member 171 arranged in parallel on the polypropylene tape 172 . Among them, the soft resin member 171 is composed of a soft resin member 171a and a soft resin member 171b, and has a two-layer structure.

In addition, as shown in FIG. 23 , on the outer surface of the protective member 162 , a detachable exterior base material 163 is provided.

In addition, as shown in FIG. 24 , the core material part 170 and the pair of soft members 161 are separately provided, and the core material part 170 and the soft members 161 are not fixed by an adhesive or the like.

That is, as shown in FIG. 24 , the outer surface of each soft member 161 is covered with a protective member 162 , and each soft member 161 is attached to the core part 170 via the protective member 162 .

In this case, each soft member 161 is covered outside by the protective member 162 , and the protective member 162 is wound inward from the side of the soft member 161 . Therefore, the protective member 162 is interposed between the core member 170 and each soft member 161 , and spaces 161 a and 161 a are formed between each soft member 161 and the core member 170 . In addition, spaces 170 a and 170 a are also formed between both side portions of the core member 170 and the base material 163 for exterior.

Next, the operation of the present embodiment having such a configuration will be described.

As described above, the core portion 170 of the protective arm 118 is composed of the polypropylene tape 172 and the soft resin member 171 arranged side by side. Among them, the polypropylene tape 172 is a relatively hard rigid member, and the soft resin member 171 has elasticity. Therefore, the protective arm 118 can realize appropriate strength by the hardness of the polypropylene tape 172 of the core material part 170, and can push back the force acting on the polypropylene tape 172 by the soft resinous part 171 of the core material part 170, Therefore, excessive force can be prevented from acting on the polypropylene band 172, and the durability of the protective arm 118 can be improved.

Thus, by using the elastic soft resin member 171 together with the polypropylene tape 172, the durability of the guard arm 118 can be effectively improved. In addition, the weight of the soft resin member 171 is generally lighter than that of the polypropylene tape 172 . Therefore, the weight of the protective arm 118 can be reduced compared to the case where the durability of the protective arm 118 is improved by using the thick polypropylene tape 172 .

In addition, since the core part 170 is composed of a relatively hard polypropylene band 172 and an elastic soft resin member 171 arranged side by side, the shape of the protective arm 118 will not be deformed even if the protective arm 118 is repeatedly moved up and down. Hold a certain shape.

That is, when only the polypropylene tape 172 is used as the core part 170, since there is no elasticity in the polypropylene tape 172, if the protective arm 118 is repeatedly moved up and down, the shape of the protective arm 118 is deformed from the original shape. However, by using the core part 170 composed of the polypropylene tape 172 and the soft resin member 171 as in this embodiment, due to the elasticity of the soft resin member 171, the protective arm 118 can be deformed from the original shape without being deformed. Holds shape for a long time.

In addition, since the soft member 161 is softer than the core part 170, the feeling when holding the guard arm 118 can be improved. In addition, since the soft member 161 supports the core part 170 from the outside, the durability and elasticity of the shield arm 118 mainly obtained by the core part 170 can be enhanced.

In addition, as shown in FIG. 23 , a base material 163 for exterior is provided on the outer surface of the protective member 162 . Therefore, the hand feeling of the guard arm 118 can be improved. In addition, since the exterior base material 163 is detachable, the appearance of the shield arm 118 can be easily changed.

Furthermore, as shown in FIG. 24 , the core part 170 , the soft member 161 , and the protective member 162 are covered around by the exterior base material 163 and pushed from the outside by the exterior base material 163 . In addition, the core part 170 and the soft member 161 are not bonded by an adhesive or the like, and the soft member 161 is attached to the core part in a separated state via the protective member 162 wound inside the soft member 161. 170 on. Therefore, when the guard arm 118 is moved up and down (see FIG. 25 ), the soft member 161 can freely slide on the core part 170 , and an excessive load on the soft member 161 can be prevented.

Furthermore, as shown in FIG. 24 , the outer surface of the soft member 161 is covered with a protective member 162 , and the soft member 161 is attached to the core part 170 with the protective member 162 interposed therebetween. As described above, since the protective member 162 can be sandwiched by sandwiching the protective member 162 between the soft member 161 and the core part 170 , it is possible to prevent the protective member 162 from detaching from the soft member 161 .

Next, a modified example of the guard arm 118 will be described using FIG. 26 .

In the modified example of the protective arm 118 shown in FIG. 26, instead of the core part 170 composed of a polypropylene tape 172 and a soft resin member 171 arranged side by side on the polypropylene tape 172, a soft resin member is used. 171 and a pair of polypropylene tapes 172 provided to sandwich the soft resin member 171, the core part 170 is substantially the same as the embodiment shown in FIGS. 22 to 25 .

In the modified example shown in FIG. 26 , the same parts as those in the embodiment shown in FIGS. 22 to 25 are denoted by the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 26 , a pair of polypropylene tapes 172 are provided on both sides of the soft resin member 171 with the soft resin member 171 interposed therebetween. Therefore, the force applied to the core material part 170 can be distributed to the soft resin member 171 and each polypropylene tape 172 provided on both surfaces of the soft resin member 171 in a well-balanced manner. Therefore, the durability of the shield arm 118 can be further improved, and it is possible to reliably prevent the shield arm 118 from being deformed from its original shape due to repeated up and down movements.

According to the present invention, it is possible to provide a protection arm for a stroller that is lightweight, has high durability, and has a fixed shape that does not change from its original shape over a long period of time even if it is used repeatedly.

third embodiment

Fig. 27 is a diagram showing a schematic structure of a stroller in which the seat itself on which the baby sits is detachable from the stroller body, and the seat can be selectively changed to a facing state or a rearward state. The stroller 210A includes a stroller main body 210. The stroller main body 210 has a pair of left and right front legs 212 with double-wheeled front wheels 211, and a pair of left and right rear legs 214 with a single wheel rear wheel 213. ; Hand push rod 215, bent in a substantially U-shape; a pair of left and right armrests 216; One end of an armrest 216 is pivotally attached to each of the left and right front portions of the push rod 215 , and the front leg 212 is pivotally attached to the other end of each armrest 216 . In addition, the upper ends of the left and right rear legs 214 are pivotally mounted on the middle part of the armrest 216, and on the middle part of the left and right rear legs 214, a locking piece 215a provided on the above-mentioned hand push rod 215 is mounted so as to be able to advance and retreat. . On the other hand, the left and right rear legs 214 are connected by a rear connection member 218 , and the left and right front legs 212 are connected by a front connection member 217 . Furthermore, on the middle part of each front leg 212, the front end of the connecting rod 219 is pivotally mounted, and the rear end of the connecting rod 219 is pivotally mounted on an L-shape that is pivotally mounted on the push rod 215 and the rear leg 214, respectively. on the middle part of the bracket.

On the stroller main body 210, the baby seat 221 is placed and fixed by placing and engaging the armrest 216 with the armrest 222a of the baby seat 221 from above. Then, by selectively attaching the baby seat 221 to the stroller main body 210 by inverting the front and back, it is possible to set the baby seat 221 in a hand-pushed state from the back side or a hand-pushed state facing the infant.

In addition, in FIG. 28, reference numeral 230 is a brake bearing attached to the lower end part of the left and right rear legs 214, respectively. One rear wheel axle 231 is attached to each of the left and right brake bearings 230 (only one of which is shown in the figure). That is, a plastic cylindrical collar 232 is attached to the rear wheel axle 231 inserted into the shaft hole 233 of the above-mentioned brake bearing 230 . The cylindrical collar 232 is located on the end portion of the aforementioned rear wheel axle 231 and protrudes from the side surfaces of the left and right brake bearings 230 facing each other. On the rear wheel axle 231 protruding from the other side of the above-mentioned brake bearing 230, as shown in FIG. 29, the rear wheel 213 which consists of a single wheel is attached.

On the other hand, on the stopper bearing 230 , at a position adjacent to the cylindrical collar 232 protruding from the stopper bearing 230 , a coupling protrusion protruding in a direction parallel to the collar 232 is integrally formed. 234. Claws 237 that engage with engaging holes 236 formed in connecting pipes 235 that connect the left and right brake bearings 230 are provided on the side surfaces of the connecting protrusions 234 . The connection pipe 235 is formed in a substantially elliptical cylindrical shape, while the cylindrical collar 232 protruding from the brake bearing 230 and the coupling protrusion 234 adjacent to the collar 232 constitute a part of the outer edge of the ellipse. , The connecting pipe 235 has an elliptical inner edge corresponding to the elliptical outer edge.

Then, after the rear wheel axle 231 is inserted into the brake bearing 230 as described above, the cylindrical collar 232 protruding from the brake bearing 230 and the coupling protrusion 234 adjacent to the collar 232 are press-fitted into the brake bearing 230 . At the end of the connecting pipe 235 , the claws 237 formed on the connecting protrusion 234 are engaged with the engaging holes 236 provided in the connecting pipe 235 , and the left and right brake bearings 230 are connected to each other via the connecting pipe 235 .

In this way, in this embodiment, since the cylindrical collar 232 attached to the rear wheel axle 231 is press-fitted into the connecting pipe 235 , the collar 232 can prevent the occurrence of vibration noise at the connecting pipe 235 . Furthermore, the left and right brake bearings 230 are connected to each other by engaging the claws 237 formed on the connecting protrusions 234 with the engaging holes 236 provided on the connecting pipe 235 . Therefore, it is not necessary to use a special connecting member for connecting the connecting pipe 235 and the left and right brake bearings 230 , and it is possible to reduce the number of parts and reduce the weight.

In addition, in the above-mentioned embodiment, it is shown that the baby seat is applied to the baby carriage that can be attached to the main body of the baby carriage by changing the front and rear directions. Any type of stroller can be used.

In the present invention, as described above, the axle shaft supporting the rear wheel constituted by a single wheel is installed in a pair of left and right bearings respectively installed on the left and right rear legs, and the above-mentioned left and right brake bearings are connected by a connecting pipe. Therefore, one rear wheel axle can be provided on each side, and weight can be reduced by providing only one conventional long rear wheel axle. Furthermore, since the above-mentioned left and right brake bearings are connected only by the connection pipe, it is possible to reduce the weight compared with the conventional connection member.

Claims (3)

1. a protection arm for perambulator extends and configures between the pair of armrests of perambulator, and is made up of the centre part that is attached at the pair of end portions in pair of armrests and be located between pair of end portions, it is characterized in that,

Centre part possesses:

Core part is extended between pair of armrests, and has elasticity;

A pair of soft parts, clip the setting of core part, more soft than core part;

Guard block, is located on the outer surface of each soft parts, and protects soft parts;

Core part is made up of hard parts and the soft resinoid parts that are configured in side by side on hard parts,

Each soft parts cover outer surface by guard block, and guard block is from the sidepiece of soft parts to the inside around entering, and each soft parts clip guard block and are arranged in core part,

Between each soft parts and core part, be formed with space.

2. the protection arm of perambulator as claimed in claim 1, is characterized in that, hard parts are made up of polypropylene tape.

3. the protection arm of perambulator as claimed in claim 1, is characterized in that, is provided with the dismounting exterior base-material of using freely on the outer surface of guard block.