JP7066260B2 - Sliding door assist device - Google Patents

Description

The present invention relates to a sliding door assist device, and more particularly to a sliding door assist device suitable for opening a sliding door.

In Patent Document 1, since the spring force of the pulling spring 44 always acts in the direction of returning the kicking member 7 to the storage box 26, dust (the gap between the vertical surface of the door tip and the door frame) is obtained when the door is closed. When, for example, when the dust changes from 0.1 mm to 5 mm, the kicking member 7 cannot immediately kick out to the vertical surface of the door frame, the receiving piece, the receiving part such as the strike, or sufficiently. There was a problem that it could not be kicked out (the reference numeral is that of Patent Document 1).

Further, in Patent Document 2, the horizontal extrusion rod 19 is pressed against the vertical surface of the door frame 2 via the tilted link member 17 that cooperates with the puller (lever) 14 guided by the pair of upper and lower guide rods 13, 13. The sliding door as an opening / closing body is opened by resisting the spring force of the compression spring 20, and the compression spring 20 is interposed between the puller (lever) 14 and the link member 17. Since the spring force acts in the direction of returning the horizontal push rod 19 into the case, the spring force immediately kicks the receiving portion of the door frame against the receiving portion of the door frame in response to the fluctuation of the dust size, as in Patent Document 1. There was a problem that it could not be put out or kicked out sufficiently (the reference numeral is that of Patent Document 2).

Japanese Patent No. 4677211 Japanese Unexamined Patent Publication No. 2004-84338

In view of the problems of Patent Document 1 and Patent Document 2, the main problem of the present invention is premised on the main problem of these patent documents, and further, the tip portion of the kicking member (assist rod of the present application) is an urging means. Always be in contact with or close to the vertical surface of the door frame, the receiving piece, the strike, etc. by the urging force of It is to be. The second purpose is to be able to fully exert the assist force by a simple mechanism and rational means on the premise of the above-mentioned main problem. Other purposes are specified by dependent terms.

The sliding door assist device of the present invention includes an operating member provided on the sliding door, a housing provided inside the door end side of the sliding door, a driving member arranged in the housing, and a driving force of the driving member. In the sliding door assist device provided with a kick-out mechanism arranged in the housing so as to be operated by the above-mentioned kick-out mechanism, the kick-out mechanism includes an assist rod supported by the assist base so as to be able to move forward and backward, and the assist base. It is provided with a clutch means provided at a predetermined position and a lock pin incorporated in the rear end portion of the assist base so that the clutch means can be operated, and the tip end portion of the assist rod is on the door frame side when the door is closed. The assist urging means for urging the assist rod so as to come into contact with or approach the receiving portion is included, and when the door is opened, the drive member is operated by the operation force of the operation member, and the drive force of the drive member is operated. The assist rod is pressed against the receiving portion on the door frame side, thereby moving the sliding door in the opening direction.

Here, "contacting or approaching the receiving portion" is a concept of "chili" referred to by those skilled in the art, and this dust includes 0 mm (contact), and further, for example, 10 mm (approach). The range is up to. In the embodiment, it is preferably 0 mm to 8 mm, more preferably 0 mm to 6 mm.

(A) In the invention according to claim 1, the kicking mechanism operates an assist rod supported by an assist base so as to be able to move forward and backward , a clutch means provided at a predetermined position of the assist base, and the clutch means. The assist rod is provided with a lock pin incorporated in the rear end portion of the assist base so that the tip portion of the assist rod comes into contact with or approaches the receiving portion on the door frame side when the door is closed. The assist urging means for urging is included, and when the door is opened, the driving member is operated by the operating force of the operating member, and the driving force of the driving member causes the assist rod to be directed to the receiving portion on the door frame side. Since the sliding door is pressed and moved in the direction of opening the sliding door, even if the dust fluctuates, for example, from 0 mm to 5 mm, 0.1 mm to 3 mm, 0.2 mm to 4 mm, etc., it is immediately applied to the receiving portion. You can try to kick it out. In addition, for example, in the case of the embodiment in which the shared lever on the operating member side is displaced in the horizontal direction, the stroke of the assist rod constituting the sliding door assist device is "abbreviated" with respect to the stroke "approximately 8 mm" of the lever. Since it is "5.2 mm", it is possible to obtain an assist force of about 1.5 times. Therefore, even if the dust fluctuation is 3 mm, 4 mm, 5 mm, or the like, it is possible to immediately kick the ball against the receiving portion.
(B) According to the second aspect of the present invention, in the kicking mechanism, the engaging portion constituting the clutch means is attached to the lock pin when the lock pin that cooperates with the drive member advances by the driving force of the drive member. The engaging portion supports the assist rod by following it, and the assist base and the assist rod can move together in the pressing direction in this supported state. Therefore, the driving force of the driving member operated by the operating force of the operating member can be reliably transmitted to the assist rod. Therefore, if the fluctuation of dust is less than the stroke (horizontal movement amount) of the assist rod, the effect of (a) can be sufficiently achieved.
(C) In the embodiment, the clutch means has at least a pair of engaging portions, and these engaging portions are supported while grasping the rear end portion of the assist rod, so that the engaging portions are cantilevered. The assist rod can be reliably supported and sent out as compared with the embodiment of the formula.
(D) In the embodiment, since the rear end portion of the assist rod is provided with an engaging groove that engages with the engaging portion, the engaging portion is prevented from slipping even if the dust fluctuation fluctuates. Can support the assist rod.
(E) In the embodiment, the drive member is a horizontally movable plate having a substantially vertical portion that receives an inner end portion of a lever of the operating member, and a link member (a first link linked to the horizontally movable plate and linked to the first link). Since the second link) is included, the driving force of the driving member can be reliably transmitted to the lower link member via the horizontally movable plate.
(F) In the embodiment, since the housing is a lock box having a temporary locking mechanism including a sickle, the lever of the operating member can be utilized as a common member. Therefore, for example, the temporary locking mechanism can be unlocked and the assist rod can be pushed out at the same time. Since the effect of sharing members is not directly related to each problem of the present invention, for example, a sliding door assist device may be provided in a storage box separate from the lock box.

1 to 6 are explanatory views showing the first embodiment of the present invention. FIG. 7 is an explanatory diagram of the second embodiment. 8 and 9 are explanatory views showing the third embodiment, and FIG. 10 is an exploded perspective view of a main part showing the fourth embodiment.
The conceptual diagram which provided the main part of this invention in the lock box of an electric lock. Schematic explanatory view (initial state) from the front view of the main part. An exploded perspective view of the main part. Schematic diagram when the shared lever of the operating member presses the substantially vertical portion of the horizontally movable plate constituting the driving member. The schematic explanatory view which shows the state which the assist rod kicks out with respect to the receiving part of a door frame immediately. (A) Schematic explanatory view from a plan view in which the operating member is in the initial position. (B) Schematic explanatory view from a plan view in which the operating member is displaced in the horizontal direction. Explanatory drawing which shows the 2nd Embodiment (a modification of a kicking mechanism). The same explanatory view as FIG. 2 of the 3rd Embodiment. An exploded perspective view of a main part of the third embodiment. An exploded perspective view of a main part of the fourth embodiment.

1 to 6 are explanatory views of the sliding door assist device X according to the first embodiment of the present invention. FIG. 1 is a conceptual diagram in which the main part of the present invention is provided in a lock box of an electric lock. First, in FIG. 1, 1 is a door frame, 2 is a sliding door, and 3 is a housing provided inside the door end side 2a of the sliding door.

In the embodiment, the housing 3 is a lock box having at least a temporary locking mechanism 4. Since the temporary locking mechanism 4 is a well-known technique, its details are omitted, but for example, the operation member 6 pivotally supported by the fixing member (for example, the pedestal) 5 fixed to the door surface (wall surface) of the sliding door 2 is not shown. When a person operates it by hand, it has a latch drive unit 8 to which a force of a shared lever 7 that is displaced in the horizontal direction by the operating force is applied, and the latch drive unit 8 slides toward the front 3a of the lock box 3. Then, the lever 9 having the latch function can rotate in the unlocking direction with respect to the receiver 10 of the door frame 1 by the driving force of the lever drive unit 5 (latch release state).

Further, the housing 3 preferably contains the locking device 11 that can be unlocked mechanically and electrically. The locking device 11 is arranged, for example, in the upper space inside the lock box 3, and is a control unit 14 that receives power from the power source 12 and the power source and acquires the detection signal of the detection means 13 provided at an appropriate position. It is provided with a drive unit 15 that receives control signals such as start / stop from the control unit and drives the lock piece (camadet) 16. Since this locking device 11 is an incidental matter in relation to the subject of the invention, the details thereof will be omitted.

Further, the housing 3 is equipped with a sliding door assist device X provided with a kicking mechanism 31. The main part of the sliding door assist device X is arranged in the lower space inside the lock box 3.
The sliding door assist device X includes a drive member 21 operated by the shared lever 7 on the operation member 6 side described above, and a kick-out mechanism 31 operated by the drive force of the drive member, and the kick-out mechanism 31 is provided. As will be described later, when the door is closed as shown in FIG. 1, the assist rod 32 is urged so that the tip surface 32a of the assist rod 32 comes into contact with or approaches the receiving portion 1a on the door frame 1 side. Has 72.

Now, the main problem of the present invention is "to ensure that the tip surface 32a of the assist rod 32 immediately kicks out to the receiving portion 1a on the door frame 1 side even if the so-called dust fluctuates". The configuration focused on the main issues will be described mainly with reference to FIGS. 2 and 3.
FIG. 2 is a schematic explanatory view of the main part from the front view, showing the drive member 21, the assist base 40 constituting the kicking mechanism 31, the assist rod 32 provided on the tip end side of the assist base, and the assist base. The clutch means 50 provided on the rear end side via a single or a plurality of movable shafts 51, and the lock pin 60 incorporated in the rear end of the assist base 40 so that the clutch means can be operated are provided. Each is in the initial position. FIG. 3 is an exploded perspective view of a main portion (kicking mechanism 31) excluding the driving member 21. As shown in FIG. 3, the kicking mechanism 31 also includes the lock pin 60.

First, in FIG. 2, the drive member 21 is attached to the horizontally movable plate 22 drawn in the upper part of the drawing, and the first fixed shaft 25 and the second fixed shaft 26 located below the horizontally movable plate 22, respectively. It consists of a supported "link member". The link member includes a first link 23 having a substantially L-shape in front view arranged so that a linking arm extending upward is linked to the horizontally movable plate 22, and a second link having an angle shape connected to the first link. It consists of 24.

The horizontally movable plate 22 can be moved in the horizontal direction via an unnumbered horizontal guide (for example, a plurality of horizontal elongated holes on the lock box side and a guide protrusion on the horizontally movable plate side). The horizontally movable plate 22 has, for example, a horizontal portion 22a and a vertical portion 22b formed so as to project upward at one end of the horizontal portion (left in the drawing), and the lever 7 of the operating member 6 is formed on the vertical portion 22b. A substantially vertical portion 22c for receiving the inner end portion 7a of the above is provided. The substantially vertical portion 22c is a receiving surface that is wider in the vertical direction than the contact surface of one of the vertical side portions of the inner end portion 7a. In the embodiment, the length of the substantially vertical portion 22c in the vertical direction is, for example, four or five times the contact surface of the one vertical side portion. As a result, the horizontally movable plate 22 can be reliably pushed in even if the inner end portion 7a of the thin plate-shaped lever 7 is slightly tilted in the vertical direction.

In the first link 23 and the second link 24, an intermediate portion or a portion near the intermediate portion is pivotally supported via the first fixed shaft 25 and the second fixed shaft 26, respectively. The detailed structure (linkage configuration) of the link member is omitted.

Next, each member constituting the kicking mechanism 31 will be described mainly with reference to FIG. It should be noted that detailed matters (for example, a return spring for returning the engaging arm 52, which is an example of the engaging portion, the other shaft hole, a guide, etc.) are omitted as much as possible.

Reference numeral 40 denotes a long rod-shaped assist base, and the assist base 40 has a plurality of engaging protrusions 42 on both side wall portions in the longitudinal direction of the long rod-shaped main body portion 41, and is a long square cylinder in which both left and right ends are opened. It is a state. The assist base 40 is incorporated into the lock box 3 so as to be horizontally movable via the guide means (for example, the engaging projection 42 of the long rod-shaped main body 41 and the horizontal guide slot 3b of the lock box).

Therefore, 43 is a first internal space formed at the tip end portion (left in the figure) of the long rod-shaped main body portion 41, and 44 is substantially the center of the long rod-shaped main body portion 41 so as to communicate with the first internal space. A second internal space formed in the portion, 45 is a third internal space formed in a portion near the rear end portion of the long rod-shaped main body portion 41 so as to communicate with the second internal space, and 46. Is a fourth internal space formed at the rear end of the long rod-shaped main body 41 so as to communicate with the third internal space, and each of these internal spaces is appropriately partitioned by an unnumbered peripheral wall. In addition, it communicates with the through hole 47 at the front end and the through hole 48 at the rear end in a series. Further, in the second internal space 44 and the third internal space 45, the upper wall portion and the lower wall portion are opened, respectively, in order to incorporate the clutch means 50 so as to be sandwiched and swung via the movable shaft 51 in the horizontal direction. It is a notch to be used.

In FIG. 3, an assist base 40, a clutch means 50, an assist rod 32 equipped with "a plurality of urging means", a lock pin 60, and the like are drawn. The assist rod 32 has a rod-shaped tip portion 33 to which the return spring 71 is mounted, a rod-shaped substantially intermediate portion 35 to which the rod-shaped tip portion is connected to the rod-shaped tip portion via the flange portion 34 and the assist urging means 72 is mounted, and the rod-shaped portion 35. Engagement rear end portion 36 having fine engagement grooves (for example, knurled grooves, wavy grooves, etc.) 36a formed on one side lower surface and one side lower surface respectively, which are connected to a substantially intermediate portion. Consists of.

As shown in FIG. 2, the assist rod 32 is incorporated in the first internal space 43 and the second internal space 44 of the assist base 40. In the embodiment, as shown in FIG. 2, when the assist rod 32 is incorporated in the tip end side of the assist base 40, the flange portion 34 located in the first internal space 43 forms an annular hole 47 at the tip portion. It is urged by the assist urging means 72 so as to be in pressure contact with the inner surface of the peripheral wall, and its tip surface 32a is always in contact with the receiving portion 1a of the door frame 1. Further, the engaging rear end portion 36 having a circular or polygonal outer peripheral surface is located in the second internal space 44 so as to mesh with the engaging teeth 52a of the tip portions of the upper and lower pair of engaging portions 52 of the clutch means 50. ing.

Further, the compression spring 71, which is an example of the urging means, has its front end portion pressed against the inner wall surface on the front side of the lock box 3, while the rear end portion is pressed against the front end surface of the assist base 40.

As described above, the clutch means 50 has a pair of engaging portions (engaging arms, engaging plates, etc.) 52 that are provided on the rear end portion side of the assist base and swing with the movable shaft 51 as a fulcrum. The rear end surface of the rear end portion of these engaging portions 52 is an inclined receiving surface 52b that expands outward so as to be able to receive the chevron engaging portion 60a of the lock pin 60 having a lateral arrow shape. There is.
The lock pin 60 has a chevron engaging portion 60a and a rear end portion 60b connected to the chevron engaging portion 60a, and a rear end portion of the assist base 40 so that the clutch means 50 can be operated. It is built into.

The operation of the above configuration will be described with reference to FIGS. 4 to 6. FIG. 4 is a schematic explanatory view when the shared lever 7 (inner end portion 7a) of the operating member 6 presses the substantially vertical portion 22c of the horizontally movable plate 22 constituting the driving member 21 in the direction of the arrow. In the initial state of FIG. 2 (the return spring for the engaging portion 52 is omitted), the horizontally movable plate 22 moves in the direction of the arrow due to the operating force of the operating member, whereby the link members 23 and 24 as the direction changing means are moved. Rotating around the fixed shafts 25 and 26 as fulcrums, respectively, as a result, the chevron engaging portion 60a of the lock pin 60 pushed by the second link 24 as the driven link prys open the pair of upper and lower inclined surfaces 52b of the clutch means 50. Since it is pushed in in this way, the pair of upper and lower engaging portions 52 rotate around the movable shaft 51 as a fulcrum, and the engaging portions 52 support the assist rod 32 so as to bite the engaged rear end portion 36.

Next, FIG. 5 is a schematic explanatory view showing a state in which the assist rod 32 immediately kicks out with respect to the receiving portion 1a of the door frame 1. 6A is a schematic explanatory view from a plan view in which the operating member 6 is in the initial position, while FIG. 6B is a plan view in which the operating member 6 is displaced in the horizontal direction. It is a schematic explanatory drawing of.

The operation of each member is as shown by the arrow in the figure, but in the embodiment, the kicking mechanism X includes a clutch means 50 provided at a predetermined position of the assist base 40, and the engagement constituting the clutch means is provided. When the lock pin 60 that cooperates with the drive member 21 advances by the driving force of the drive member 21, the portion 52 is driven by the lock pin 60 and the engaging portion 52 is the engaging rear end portion of the assist rod 32. While supporting the 36 so as to bite it, the assist base 40 and the assist rod 32 can move together in the pressing direction in this supported state. With this configuration, the driving force of the driving member 21 operated by the operating force of the operating member 6 can be reliably transmitted to the assist rod 32.

Therefore, the present invention comprises a fixing member 5 fixed to the wall surface of the sliding door 2, an operating member 6 pivotally supported by the fixing member, and a housing 3 provided inside the door end side 2a of the sliding door 2. In the sliding door assist device X provided with the driving member 21 disposed in the housing 3 and the kicking mechanism 31 arranged in the housing 3 so as to operate by the driving force of the driving member 21. In the kicking mechanism 31, the assist rod 32 movably supported by the assist base 40 and the tip surface 32a of the assist rod 32 come into contact with or approach the receiving portion 1a on the door frame 1 side when the door is closed. The assist urging means 72 for urging the assist rod 32 is included, and when the door is opened, the drive member 21 is operated by the operation force of the operation member 6, and the assist rod is operated by the drive force of the drive member 21. 32 is pressed against the receiving portion 1a on the door frame side, whereby the sliding door 2 is moved in the opening direction.

By the way, FIG. 7 is an explanatory diagram (second embodiment) showing a modified example of the kicking mechanism X1 of the present invention. The kicking mechanism X1 is a design change of the first embodiment regarding the configurations of the assist base 40A, the assist rod 32A, and the clutch means 50A. For example, the arrangement location of the assist urging means 72A is changed and the clutch means is changed. The engaging portion 52 of 50A is integrated into a cantilever type, and the lock pin 60 having a horizontal arrow shape is omitted so that the driving force of the driving member 21 is directly transmitted to the engaging portion 52. .. Even with such a configuration, the main subject of the present invention can be achieved. The outer peripheral surface of the engaging rear end portion 36 of the second embodiment is also circular or polygonal as in the first embodiment. Further, a return spring for returning the engaging portion 52 constituting the clutch means 50A to the initial position may be appropriately provided on the movable shaft 51.

Next, FIGS. 8 to 10 describe the non-essential matters of the present invention just in case, FIGS. 8 and 9 are explanatory views showing the third embodiment, and FIG. 10 shows the fourth embodiment. It is an exploded perspective view of the main part shown. In the third embodiment, the outer periphery of the engaging rear end portion 36 of the assist rod 32B is formed in a substantially circular shape like the tip portion 33, the engaging groove 36a is formed in the circumferential direction, and the pair of engaging portions 52. A single or a plurality of return springs 53 for returning to the initial position are illustrated, and the central portion of the return spring 53 is wound around, for example, a movable shaft 51, and both ends thereof are provided up and down via the movable shaft. It is a point that the pair of engaging portions 52, 52 are appropriately supported by the spring end supporting portions 52c, 52c.

Further, the fourth embodiment includes the main part of the first embodiment or the third embodiment as it is, and a part of the design is changed. As an example of some design changes, for example, one movable shaft is set as "two shafts 51A, 51A" in the same axial direction, and the pair of engaging portions 52, 52 are pivotally supported by movable shafts 51A, 51A, which are separate from each other. Has been done. The reason why the movable shaft is separated in this way is nothing but the consideration for convenience at the time of assembling the assist base 40. For example, at the time of assembly, the pair of engaging portions 52 and 52 can be pivotally supported by the respective movable shafts 51A and 51A while sliding the pair of engaging portions 52 and 52 in the length direction of the assist base 40, respectively. Therefore, these matters have nothing to do with the subject of the invention.

The operation mode of the operation member 6 is not an essential matter of the present invention, but it is desirable that the operation member 6 is a lever type, for example. In the case of a lever type handle, there are various types such as pulling toward the front side, pushing toward the wall surface side of the sliding door 2, sliding along the wall surface of the sliding door 2, rotating, etc., but more preferably, the sliding door 2 is pulled. The operating member 6 is operated in the direction. Further, the present invention does not require the temporary locking mechanism 4 or the locking device 11 as essential requirements. Further, for example, the return spring 71 is a necessary component as a product regardless of its mounting location.

The present invention can be used in the technical field of locks and fittings.

X, X1 ... Sliding door assist device,
1 ... door frame, 1a ... receiving part,
2 ... Sliding door, 2a ... Door side,
3 ... Housing,
4 ... Temporary locking mechanism, 9 ... Kama,
5 ... Fixing member,
6 ... Operation member, 7 ... Lever,
21 ... Drive member,
22 ... Horizontal drive plate,
23 ... 1st link, 24 ... 2nd link,
25, 26 ... Fixed shaft,
31 ... Kicking mechanism,
32, 32A, 32B ... Assist rod, 32a ... Tip,
40, 40A ... Assist base,
50, 50A ... Clutch means,
51, 51A ... Movable shaft, 52 ... Engagement part,
53 ... Return spring,
60 ... Lock pin,
71 ... Return spring,
72, 72A ... Assisting means.

Claims (2)

The operating members provided on the sliding door and
The housing provided inside the sliding door on the door end side and
The drive member arranged in this housing and
In the sliding door assist device provided with a kick-out mechanism arranged in the housing so as to be operated by the driving force of the driving member.
The kicking mechanism includes an assist rod that is movably supported by the assist base, a clutch means provided at a predetermined position of the assist base, and a rear end of the assist base so that the clutch means can be operated. Equipped with a lock pin built into the part ,
Includes an assist urging means that urges the assist rod so that the tip of the assist rod comes into contact with or approaches the receiving portion on the door frame side when the door is closed.
When the door is opened, the driving member is operated by the operating force of the operating member, and the assist rod is pressed against the receiving portion on the door frame side by the driving force of the driving member, whereby the sliding door is opened. Sliding door assist device characterized by moving to. In the sliding door assist device according to claim 1, the engaging portion constituting the clutch means is driven by the lock pin when the lock pin cooperating with the drive member advances by the driving force of the drive member. A sliding door assist device, wherein the engaging portion supports the assist rod, and the assist base and the assist rod can move together in the pressing direction in this supported state.

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