JP7205813B2 - Opening assist device - Google Patents

Description

The present invention relates to an opening assist device.

Patent Document 1 listed below discloses an automatic door device with an opening assist function. In this automatic door device, the load generated when opening a fully closed door is compensated for by operating a lever, thereby reducing the load on the motor that drives the door and reducing the size of the device.

JP 2008-138496 A

In a conventional automatic door system, manual operation of a lever is required to assist the opening of the door, so that the assist of opening the door cannot be performed only by manual operation or electric operation. In other words, in the conventional automatic door system, it was not possible to assist opening by manual operation or electric operation alone. Therefore, it has been desired to provide a technique related to a new assisting device that enables both opening assistance by manual operation and opening assistance by electric operation.

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide an opening assist device capable of both manual opening assist and electric opening assist.

One aspect of the opening assist device of the present invention includes a main body case, a drive section including a slider section that reciprocates in the main body case along a first direction, and a handle rotatably attached to the main body case. and a connecting member whose one end side is separably connected to the slider portion and whose other end side is attached to the handle portion, wherein the handle portion extends in the first direction of the connecting member. moves with respect to the main body case.

According to one aspect of the present invention, there is provided an opening assist device that enables both opening assist by manual operation and opening assist by electric operation.

FIG. 1 is a perspective view showing a schematic configuration of an assist device. FIG. 2 is a perspective view showing the internal configuration of the assist device. FIG. 3 is a diagram showing the essential structure inside the assist device. FIG. 4 is a diagram showing a state in which the connecting member has moved downward integrally with the slider portion. FIG. 5 is a diagram showing a state in which the connecting member separated from the slider portion has moved downward. FIG. 6 is a diagram showing an example of how the assist device of the embodiment is used.

Hereinafter, as one embodiment of the opening assist device, a device for assisting the opening operation of opening fittings such as a house from a fully closed state will be described.
FIG. 1 is a perspective view showing a schematic configuration of the assist device of this embodiment. FIG. 2 is a perspective view showing the internal configuration of the assist device of this embodiment. In FIG. 2, a part of the configuration is cut out for easy viewing of the internal configuration.

Also, in the drawings used in the following description, an XYZ coordinate system is appropriately shown as a three-dimensional orthogonal coordinate system. In the XYZ coordinate system, the Z-axis direction is a vertical direction in which the +Z side is the "upper side" and the -Z side is the "lower side." The X-axis direction is a direction orthogonal to the Z-axis direction, and is the direction in which the handle portion is pulled out during the assist operation. is the direction. The Y-axis direction is a direction perpendicular to both the X-axis direction and the Z-axis direction, and is the width direction of the main body case 1 .
The vertical direction, the upper side and the lower side, and the front-back direction, the front side and the rear side are names for simply explaining the arrangement relationship of each part, and the actual arrangement relationship etc. are the arrangements indicated by these names. Arrangement relationships and the like other than relationships and the like may be used.

As shown in FIGS. 1 and 2, the assist device 10 includes a main body case 1, a driving portion 2, a handle portion 3, a connecting member 4, an opening member 7, and a switch portion 8. The assist device 10 of the present embodiment is, for example, a device that enables an easy opening operation by applying a force to push the fittings in the opening direction when opening fittings such as sliding doors and windows in a house from a fully closed state. is. The assist device 10 of the present embodiment is a device that can easily switch between a state in which the opening assist operation is performed manually and a state in which the opening assist operation is performed electrically.

The main body case 1 is a member that houses the driving portion 2 , the handle portion 3 and the connecting member 4 , and constitutes a part of the exterior of the assist device 10 . The body case 1 has a bottom plate 11 and a pair of side plates 12 and 13 provided on both sides of the bottom plate 11 in the width direction.

The bottom plate 11 is provided with a slit 11a extending in the vertical direction. The body case 1 has a spring fixing shaft 14 passing through the side plates 12 and 13 . A first spring member (biasing member) 18 is provided on the spring fixing shaft 14 . In this embodiment, the first spring member 18 is composed of an extension coil spring. The spring fixing shaft 14 holds one end of the first spring member 18 .

The drive unit 2 is for electrically operating the assist device 10 . The driving portion 2 has a motor 20 , a screw shaft 21 , a slider portion 22 , a coupling member 23 , a first bracket member 24 and a second bracket member 25 .

The motor 20 has a shaft 20a that rotates around a predetermined rotation axis O. As shown in FIG. In this embodiment, the rotation axis O of the motor 20 is parallel to the vertical direction (Z-axis direction). The screw shaft 21 is connected to the shaft 20a of the motor 20 via the coupling member 23. As shown in FIG. The screw shaft 21 rotates coaxially with the shaft 20a. The screw shaft 21 is provided with threads (not shown) on its outer peripheral surface. The slider portion 22 is attached to the screw shaft 21 .

The drive unit 2 is driven when the switch unit 8 is turned on. The configuration of the switch unit 8 is not particularly limited, and may be, for example, a push button structure or a touch panel structure. In this embodiment, the switch part 8 is attached to the upper side of the main body case 1, but the switch part 8 may be attached to a member different from the assist device 10. FIG. For example, the assist device 10 may be installed indoors and the switch section 8 may be installed outdoors. In this case, by turning on the outdoor switch unit 8, the indoor assist device 10 can be operated to assist in opening the fittings. Further, instead of the switch section 8, a remote controller may be used to drive the driving section 2. FIG.

The first bracket member 24 holds the upper end (+Z side end) of the screw shaft 21 and the motor 20 . The second bracket member 25 holds the lower end (-Z side end) of the screw shaft 21 . The first bracket member 24 and the second bracket member 25 are fixed to the body case 1 .

The handle portion 3 has a top plate 31 and a pair of side plates 32 and 33 provided at both ends of the top plate 31 in the width direction. The handle portion 3 is attached to the main body case 1 at the lower end portion 3 a by the first shaft 5 . The first shaft 5 passes through the side plates 32 and 33 of the handle portion 3 and the side plates 12 and 13 of the body case 1 . The first shaft 5 penetrates the body case 1 in the width direction (Y-axis direction). As a result, the handle portion 3 is rotatable about the Y-axis with respect to the body case 1 , and the handle portion 3 can be pulled out to the front side (+X side) with respect to the body case 1 .

A notch 31 a is provided at the upper end of the top plate 31 . The notch 31a is used as a part for hooking a finger when pulling out the handle portion 3 from the inside of the main body case 1, for example.

Further, the handle portion 3 has a spring fixing shaft 15 passing through the side plates 32 and 33 . The spring fixing shaft 15 holds the other end of the first spring member 18 . Thus, both ends of the first spring member 18 are held by the handle portion 3 and the body case 1 . The first spring member 18 generates an urging force to return the handle portion 3 into the main body case 1 by extending when the handle portion 3 rotates with respect to the main body case 1 as will be described later.

The opening member 7 is provided in the width direction of the body case 1 . The opening member 7 is provided at a position where it can come into contact with fittings. The opening member 7 is connected to the handle portion 30 through an opening (not shown) provided in the side plate 12 of the main body case 1 . The opening member 7 rotates with respect to the main body case 1 together with the handle portion 30 to come into contact with fittings and apply a force to push the fittings in the opening direction.

The connecting member 4 connects the body case 1 and the handle portion 30 . The connecting member 4 has a top plate 41 and a pair of side plates 42 and 43 provided on both sides of the top plate 41 in the width direction. A lower end side (other end side) 4 b of the connecting member 4 is attached to the handle portion 30 by the second shaft 6 .

The second shaft 6 passes through the lower end of the side plate 42 , the lower end of the side plate 43 , and the side plates 32 and 33 of the handle portion 30 . Thereby, the lower end side 4a of the connecting member 4 can be rotated by the second shaft 6 with respect to the handle portion 30 around an axis parallel to the Y-axis.

FIG. 3 is a diagram showing the essential structure inside the assist device.
As shown in FIG. 3 , the second shaft 6 has a second spring member (biasing member) 19 . In this embodiment, the second spring member 19 is composed of a torsion spring having two arms 19a and 19b extending in opposite directions. The second spring member 19 is provided at a portion positioned between the side plates 42 and 43 in the width direction, one arm 19a facing the inner surface of the top plate 41 of the connecting member 4, and the other arm 19b facing the handle portion. It faces the inner surface of the top plate 31 of 30 . When the connecting member 4 rotates around the second shaft 6 with respect to the handle portion 30, the second spring member 19 is bent together with the pair of arms 19a and 19b as will be described later. generates an urging force that pushes back upward.

As shown in FIGS. 2 and 3, the connecting member 4 has connecting pins 44 . The connection pin 44 is provided so as to pass through the upper end portion of the side plate 42 and the upper end portion of the side plate 43 . The connection pin 44 is a member that detachably connects the upper end side (one end side) 4 b of the connecting member 4 to the slider portion 22 .

As shown in FIG. 3, the slider portion 22 includes a slider main body 22A connected to the screw shaft 21, a pin support portion 22B detachably supporting the connection pin 44 of the connecting member 4, and a guide protrusion 22C. , has

The slider main body 22A has a through-hole 26 extending therethrough in the axial direction. The through hole 26 is provided with a female thread (not shown) that meshes with the thread of the screw shaft 21 . The pin support portion 22B is integrally provided on the rear side (-X side) of the slider body 22A. The pin support portion 22B has a concave portion 27 that is recessed upward from the bottom side. In the pin support portion 22B (recess 27), the inner diameter of the bottom portion 27a located at the uppermost side is equal to the outer diameter of the connection pin 44. As shown in FIG. As a result, the pin support portion 22B stably holds the connection pin 44 within the recess 27 .

The guide protrusion 22C is integrally provided on the rear side (−X side) of the pin support portion 22B. The guiding projection 22C is fitted into a slit 11a provided in the bottom plate 11 of the main body case 1. As shown in FIG. The slider main body 22A can reciprocate vertically in the main body case 1 along the slit 11a.

When the handle portion 3 is accommodated in the main body case 1, the connecting pin 44 of the connecting member 4 is supported by the pin support portion 22B as shown in FIG. ing.

In this embodiment, the slider portion 22, the connecting member 4 and the handle portion 3 constitute a slider crank mechanism. One end side of the connecting member 4 is vertically movable in a state of being integrated with the slider portion 22 or in a state of being separated from the slider portion 22 .

FIG. 4 is a diagram showing a state in which the upper end side 4b of the connecting member 4 has moved downward integrally with the slider portion 22. As shown in FIG. FIG. 5 is a diagram showing a state in which the upper end side 4b of the connecting member 4 separated from the slider portion 22 has moved downward.

As shown in FIG. 4, when the upper end side 4b of the connecting member 4 moves downward together with the slider portion 22, the handle portion 3 connected to the lower end side 4a of the connecting member 4 rotates with respect to the main body case 1. is designed to be pulled out to the front. That is, the assist device 10 can pull out the handle portion 3 forward by moving the slider portion 22 downward.

As described above, the connection pin 44 of the connecting member 4 is not fixed to the pin support portion 22B and is separable from the slider portion 22. As shown in FIG. Since the recessed portion 27 that supports the connection pin 44 is opened downward, the upper end side 4 b of the connecting member 4 is separated from the slider portion 22 by moving downward relative to the slider portion 22 . The upper end side 4b of the connecting member 4 separated from the slider portion 22 is guided by a rail member (not shown) provided on the main body case 1 so as to be vertically movable within the main body case 1. As shown in FIG.

As shown in FIG. 5, when the upper end side 4b of the connecting member 4 separated from the slider portion 22 moves downward, the handle portion 3 connected to the lower end side 4a of the connecting member 4 rotates with respect to the main body case 1. By doing so, it is pulled out to the front side. That is, the assist device 10 can pull out the handle portion 3 forward by moving one end side of the connecting member 4 downward.

FIG. 6 is a diagram showing an example of how the assist device 10 of this embodiment is used.
As shown in FIG. 6, the assist device 10 applies a force to push the fitting 100 in the opening direction when opening the fitting 100 from the fully closed state. The assist device 10 is provided on an indoor wall 101 of a house.

A method of using the assist device 10 will be described below.
First, the case where the opening assist operation by the assist device 10 is electrically performed will be described.
When performing an electric assist operation, the operator presses the switch section 8 to drive the drive section 2 . As a result, the screw shaft 21 is rotated by the motor 20, and the slider portion 22 is moved downward. The slider portion 22 smoothly moves downward inside the main body case 1 by guiding the guide protrusions 22C to the slits 11a.

As shown in FIG. 4, when the upper end side 4b of the connecting member 4 moves downward together with the slider portion 22, the handle portion 3 connected to the lower end side 4a of the connecting member 4 rotates with respect to the main body case 1. is pulled out to the front.

Here, when the handle portion 3 is pulled forward, the angle formed by the inner surface of the top plate 41 of the connecting member 4 and the inner surface of the top plate 31 of the handle portion 30 becomes smaller. At this time, the pair of arms 19a and 19b of the second spring member 19 are bent to generate an urging force to push back the upper end side 4b of the connecting member 4 upward. When the handle portion 3 is pulled forward, the connection pin 44 is pressed against the bottom portion 27a of the pin support portion 22B (recess 27) by the biasing force, so that the connecting member 4 is well held by the pin support portion 22B. moves together with the slider portion 22 at .

The opening member 7 pulled out to the front side together with the handle portion 3 gives the fitting 100 a pushing force in the opening direction. In this way, the assist device 10 can electrically perform the opening assist operation of the fitting 100 .

After completing the opening assist operation, the assist device 10 rotates the screw shaft 21 by the motor 20 to move the slider portion 22 upward. As described above, the coupling member 4 is pressed into the pin support portion 22B (recess 27) by the biasing force of the second spring member 19, so the upper end side 4b of the coupling member 4 moves upward together with the slider portion 22. When the upper end side 4b of the connecting member 4 moves upward together with the slider portion 22, the handle portion 3 connected to the lower end side 4a of the connecting member 4 rotates rearward and is housed in the main body case 1. FIG.
The assist device 10 returns to the initial state in which the connecting member 4 and the slider portion 22 are connected and the handle portion 3 is accommodated in the main body case 1 after the electrically assisted operation is completed.

Next, a case in which the opening assist operation is manually performed by the assist device 10 will be described.
For manual operation, the operator hooks the finger on the notch 31a, holds the handle portion 3 pulled out from the main body case 1, and pulls the handle portion 3 forward.

When the handle portion 3 is manually pulled forward, the lower end side 4a of the connecting member 4 moves forward and downward. Here, in the case of manual operation, the slider portion 22 does not move because the driving portion 2 is not driven. Therefore, the connection pin 44 is pulled out from the pin support portion 22B (recess 27) by moving the lower end side 4a of the connecting member 4 downward, and the upper end side 4b of the connecting member 4 is separated from the slider portion 22. The upper end side 4b of the connecting member 4 separated from the slider portion 22 is guided by a rail member (not shown) provided on the body case 1 and moves downward inside the body case 1 .

As shown in FIG. 5, when the upper end side 4b of the connecting member 4 separated from the slider portion 22 moves downward, the handle portion 3 connected to the lower end side 4a of the connecting member 4 moves downward relative to the main body case 1. 2 rotates around the shaft 6 and is pulled out to the front side. The opening member 7 pulled out to the front side together with the handle portion 3 gives the fitting 100 a pushing force in the opening direction. In this manner, the assist device 10 can manually perform the opening assist operation of the fitting 100 .

After completing the opening assist operation, the operator releases the handle portion 3 . Here, in a state in which the handle portion 3 is pulled out from the main body case 1, the first spring member 18, both ends of which are supported by the handle portion 3 and the main body case 1, is pulled to generate an urging force. . That is, when the handle portion 3 is pulled out from the main body case 1 , the first spring member 18 acts on the handle portion 3 to push it into the main body case 1 . In addition, when the handle portion 3 is pulled out from the main body case 1 , an upward force is applied by the second spring member 19 to the lower end side 4 a of the connecting member 4 .

Therefore, when the operator releases the handle portion 3, the urging forces of the first spring member 18 and the second spring member 19 rotate the handle portion 3 in the direction in which the handle portion 3 is accommodated in the main body case 1, and the connecting member 4 is moved. is connected to the slider portion 22 again by moving the upper end side 4b of .
After the manual assist operation is completed, the assist device 10 returns to the initial state in which the connecting member 4 and the slider portion 22 are connected and the handle portion 3 is accommodated in the main body case 1 .

As described above, according to the assist device 10 of the present embodiment, both opening assist by manual operation and opening assist by electric operation can be performed without requiring a special switching operation. Further, according to the assist device 10 of the present embodiment, the initial state is restored after the assist operation is completed. can be operated electrically or manually.

Further, according to the assist device 10 of the present embodiment, since the drive section 2 is accommodated in the space formed by the main body case 1 and the handle section 3, it is possible to reduce the size of the device configuration. In addition, since the drive section 2 is not exposed to the outside when the handle section 3 is accommodated in the main body case 1, the assist device 10 can be electrified without impairing the design.

An embodiment of the present invention has been described above. Change is possible. Moreover, the present invention is not limited by the embodiments.

For example, in the above-described embodiment, the case where the assist device 10 is used to assist the opening of sliding door type fittings has been exemplified, but the assist device 10 can also be applied to assist the opening of hinged door type fittings.

DESCRIPTION OF SYMBOLS 1... Main body case 2... Drive part 3, 30... Handle part 4... Connection member 4a... Upper end side (one end side) 4b... Lower end side (other end side) 10... Assist device 18, 19... Members 18, 19 Members (biasing members) 20 Motors 21 Shafts 22 Sliders 44 Connection pins.

Claims (4)

body case,
a driving unit including a slider that reciprocates in the main body case along a first direction;
a handle portion rotatably attached to the main body case;
a connecting member whose one end side is detachably connected to the slider portion and whose other end side is attached to the handle portion;
The opening assist device, wherein the handle portion rotates with respect to the main body case as the connecting member moves in the first direction. 2. The opening assist device according to claim 1, further comprising a biasing member that applies a biasing force to the connecting member separated from the slider portion. 3. The opening assist device according to claim 1, wherein the drive unit has a motor and a screw shaft connected to the motor and extending in the first direction. The opening assist device according to any one of claims 1 to 3, wherein the connecting member has a connection pin detachably connected to the slider portion.

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