WO2012008450A1

WO2012008450A1 - Drawer movement assist device

Info

Publication number: WO2012008450A1
Application number: PCT/JP2011/065890
Authority: WO
Inventors: 山本　琢磨; 卓司長谷川; 木村　元彦
Original assignee: サンウエーブ工業株式会社; 株式会社ニフコ
Priority date: 2010-07-13
Filing date: 2011-07-12
Publication date: 2012-01-19
Also published as: CN103037736A; CN103037736B; JP5690089B2; JP2012019886A

Abstract

Disclosed is a drawer movement assist device wherein, when an end plate (16) is opened, the rocking movement of the end plate (16) causes an upper rack (34) to move horizontally towards the front via a stay (24), causes a press bar (28) fixed to a lower rack (42) to move horizontally towards the back via a rotating gear (40), and causes a stopper (46) fixed to a cabinet main body (12) to be pressed towards the back. As a result, a drawer (14) is ejected towards the front relative to the cabinet main body (12). In addition, immediately before the end plate (16) opens, a protrusion (34B) on the upper rack (34) comes in contact with the rear end section (66A) of the slider (66) of a piston rod (58), lessening the impact when the end plate (16) is opened. Also, immediately before the end plate (16) closes, the rear surface (16A) of the end plate (16) comes in contact with the front end section (56A) of a piston cylinder (56), lessening the impact when the end plate (16) is closed.

Description

Drawer movement assist device

The present invention relates to a drawer body movement assisting device that assists the movement of the drawer body when the drawer body is pulled out from the housing.

Conventionally, Patent Document 1 is an example of a drawer movement assist device that assists the movement of the drawer body when the drawer body is pulled out of the housing. In this prior art, a gear rotatably fixed to the middle rail meshes with an upper rack of the upper rail and a lower rack of the lower rail provided above and below the middle rail. For this reason, the drawer body can be smoothly pulled out of the housing by moving the upper rail and the lower rail in opposite directions in accordance with the drawer operation of the drawer body.

Utility model registration No. 3151357

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a drawer body movement assist device that can improve the operability of a drawer body in consideration of the above facts.

According to a first aspect of the present invention, there is provided a drawer body provided on the housing so as to be linearly movable in the front-rear direction, and a front plate provided on the front surface of the drawer body so as to be swingable forward with the lower side as a rotation center. A connecting member that is connected to the front plate and moves forward by a forward swing of the front plate, a pressing member provided on the drawer so as to be movable in the front-rear direction, and a forward movement of the connecting member , A movement direction conversion mechanism for converting the pressing member into rearward movement, a stopper provided in the housing for preventing backward movement of the pressing member, and a front surface of the drawer body, Provided is a drawer movement assisting device having a buffer mechanism for buffering against a forward movement of a member and a swinging of the front plate to the rear.

In the above aspect, when the front plate provided on the front surface of the drawer body that is provided in the casing so as to be linearly movable in the front-rear direction swings forward about the lower side as the rotation center, the connecting member connected to the front plate Moves forward. The forward movement of the connecting member is caused by the movement direction conversion mechanism to move the pressing member provided on the drawer body so as to be movable in the front-rear direction, but the stopper provided on the housing moves rearward of the pressing member. Stop movement. For this reason, with the swinging operation of the front plate, the pressing member presses the stopper backward, so that the drawer body moves forward. Moreover, the buffer mechanism provided in the front surface of the drawer body buffers both the forward movement of the connecting member accompanying the forward swing of the front plate and the backward swing of the front plate. For this reason, the impact at the time of opening and closing of a front board can be relieved. As a result, the operability of the drawer can be improved.

According to a second aspect of the present invention, in the first aspect of the present invention, the buffer mechanism is provided with a damper support member fixed to the front surface of the drawer body, and movable in the front-rear direction by the damper support member. One piston damper may be provided, one end of which contacts the connecting member and the other end contacts the front plate.

In the above aspect, one piston damper whose one end abuts on the connecting member and whose other end abuts on the front plate can be moved in the front-rear direction by the damper support member fixed to the front surface of the drawer. Provide. For this reason, the impact at the time of opening and closing of a front board can be relieved by one piston damper.

Since the first aspect of the present invention has the above configuration, the operability of the drawer can be improved.

Since the second aspect of the present invention has the above-described configuration, the impact at the time of opening and closing the front plate can be mitigated by one piston damper.

It is a sectional side view which shows the end plate closed state of the drawer body movement assistance apparatus which concerns on one Embodiment of this invention. It is a sectional side view which shows the state between the end plate closed state and the end plate open state of the drawer body movement auxiliary device according to one embodiment of the present invention. It is a sectional side view which shows the end plate open state of the drawer body movement assistance apparatus which concerns on one Embodiment of this invention. FIG. 6 is a schematic cross-sectional view taken along a line 4-4 in FIG. 5. It is a perspective view which shows the principal part of the kitchen cabinet to which the drawer body movement assistance apparatus which concerns on one Embodiment of this invention was applied. It is a disassembled perspective view which shows the principal part of the kitchen cabinet to which the drawer body movement assistance apparatus which concerns on other embodiment of this invention was applied. It is a side view of the kitchen cabinet shown in FIG. FIG. 8 is a cross-sectional view taken along the line 8-8 in FIG.

A drawer movement assist device according to an embodiment of the present invention will be described with reference to FIGS.
In addition, arrow FR in the figure shows the front direction of the kitchen cabinet to which the drawer body movement assistance apparatus of this embodiment is applied, and arrow UP shows the upward direction of the kitchen cabinet.

As shown in FIG. 5, the kitchen cabinet 10 to which the drawer moving auxiliary device of this embodiment is attached includes a cabinet body 12 that is a casing. The cabinet body 12 includes an internal space covered in a U shape by a back plate (not shown) and left and right side plates 12A, and the front surface facing the back plate (not shown) serves as an opening 12B. ing.

The drawer 14 (drawer) as the drawer of the present embodiment is housed inside the cabinet body 12 of the kitchen cabinet 10. Further, slide members and rail members (not shown) are provided on the left and right side wall portions 14A of the drawer 14 and the left and right inner side surfaces of the cabinet body 12, respectively. Accordingly, the drawer 14 is horizontal with respect to the cabinet body 12 in the drawer direction (in the direction of arrow A in FIG. 5) which is the front of the kitchen cabinet 10 and in the storage direction (in the direction of arrow B in FIG. 5) which is behind the kitchen cabinet 10. It is supposed to move.

Since the slide member and the rail member are well-known configurations, a detailed description thereof will be omitted. However, when the drawer 14 is smoothly slid back and forth within a predetermined range and the drawer 14 is fully opened. Is also a supportable structure.

A closer (not shown) is provided at the rear end of the drawer 14 and urges the drawer 14 in the closing direction (the direction of arrow B in FIG. 5). For this reason, when pulling out the drawer 14, a load (drawing force) must be applied in a direction against the urging force (closing force).

Note that the closer has a well-known configuration, and a detailed description thereof is omitted. However, the drawer 14 is urged in a direction to close the drawer 14 within a predetermined range from the closed position.

As shown in FIG. 1, an end plate 16 (front plate) as a front plate of the drawer 14 is provided on the front surface 14B of the drawer 14. The end plate 16 is composed of a plate material provided in the vertical direction along the front surface 14B of the drawer 14, and the lower end portion 16B of the back surface 16A is connected to the lower end portion 14C of the front surface 14B of the drawer 14 via a hinge 18. Yes. Accordingly, the end plate 16 can swing in the opening direction (in the direction of arrow C in FIG. 1) moving from the closed position shown in FIG. 1 to the open position shown in FIG. It can swing in the closing direction (arrow D direction in FIG. 1) that moves from the open position shown in FIG. 1 to the closed position shown in FIG.

Further, cases (not shown) for storing a kitchen knife or the like are attached to the back surface 16A of the end plate 16. Therefore, by changing the end plate 16 from the closed position shown in FIG. 1 to the open position shown in FIG. 3, for example, a knife stored in the back surface 16A can be easily taken out.

As shown in FIG. 1, a stay 24 (connecting member) as a connecting member is provided on the upper portion of the side wall portion 14A of the drawer 14 so as to be movable in the front-rear direction.

Further, a moving direction changing mechanism 26 is provided behind the stay 24 in the side wall portion 14A of the drawer 14. The movement direction conversion mechanism 26 includes an upper rack 34 attached to the side wall portion 14A of the drawer 14 so as to be horizontally movable in the front-rear direction along an upper guide 33 formed linearly along the front-rear direction, and the side wall of the drawer 14 A lower rack 42 is provided below the upper guide 33 in the portion 14A. The lower rack 42 is mounted so as to be horizontally movable in the front-rear direction along a lower guide 41 formed linearly along the front-rear direction. Further, the moving direction changing mechanism 26 is rotatably attached to a rotating shaft 39 erected between the upper guide 33 and the lower guide 41 in the side wall portion 14A of the drawer 14, and is attached to the upper rack 34 and the lower rack 42. A meshing rotating gear 40 is provided.

As shown in FIG. 2, the front end 24A of the stay 24 is pivotally supported on a shaft 32 fixed by a bracket 30 to a vertical intermediate portion 16C of the back surface 16A of the end plate 16 so as to be rotatable in the vertical direction. On the other hand, the rear end portion 24B of the stay 24 is pivotally supported by the front end portion 34A of the upper rack 34 so as to be rotatable in the vertical direction by a shaft 35.

Therefore, when the end plate 16 swings forward (in the direction of arrow C in FIG. 2), the upper rack 34 moves horizontally through the stay 24 (in the direction of arrow A in FIG. 2).

The rotating gear 40 includes a first tooth portion 40A that meshes with the upper rack 34 and a second tooth portion 40B that meshes with the lower rack 42, and the number of teeth N2 of the second tooth portion 40B is the first tooth. The number of teeth is greater than the number N1 of the portion 40A. Therefore, when the upper rack 34 moves horizontally forward (in the direction of arrow A in FIG. 2), the rotating gear 40 rotates, and the lower rack 42 moves horizontally in the rearward direction (in the direction of arrow B in FIG. 2). At this time, due to the gear ratio (N2 / N1) between the first tooth portion 40A and the second tooth portion 40B of the rotary gear 40, the movement of the lower rack 42 compared to the movement distance of the upper rack 34 (the amount of drawing of the end plate 16). The distance becomes longer (N2 / N1 times).

A pressing bar 28 (pressing member) as a pressing member is fixed to the lower rack 42, and the pressing bar 28 is moved integrally with the lower rack 42 in the front-rear direction.

As shown in FIG. 5, the pressing bar 28 protrudes toward the side plate 12 A of the cabinet body 12 through a slit 47 along the front-rear direction formed on the side wall 14 A of the drawer 14. As shown in FIG. 4, the pressing bar 28 is in contact with the front surface 46 A of the stopper 46 fixed to the side plate 12 A of the cabinet body 12. The stopper 46 is fixed to the inner surface of the side plate 12A of the cabinet body 12 by a fixing member 48 such as a screw.

Therefore, when the upper rack 34 moves horizontally through the stay 24 (in the direction of arrow A in FIG. 1) via the stay 24 due to the swing of the end plate 16 in the forward direction (in the direction of arrow C in FIG. 1), the rotary gear 40 rotates counterclockwise. Rotating in the direction (arrow F direction in FIG. 1), the lower rack 42 and the pressing bar 28 are horizontally moved backward (in the arrow B direction in FIG. 2). For this reason, the pressing bar 28 presses the stopper 46 backward (in the direction of arrow B in FIG. 1), and the drawer 14 is kicked out forward (in the direction of arrow A in FIG. 4) with respect to the cabinet body 12. .

As shown in FIG. 1, a convex portion 34 B is formed downward from the front end portion 34 A of the upper rack 34.

As shown in FIG. 2, the buffer mechanism 50 includes a cylindrical case 52 (damper support member) and a piston damper 54 as damper support members. The case 52 is fixed to the front surface 14B of the drawer 14 with its axial direction facing the front and rear direction of the kitchen cabinet. The case 52 has a direction of impact when the piston damper 54 opens and closes the end plate 16 (front and rear of the kitchen cabinet). (Moving in the direction).

The piston damper 54 includes a piston cylinder 56 having a cylindrical shape, a piston (not shown) movably inserted into the piston cylinder 56, a piston rod 58 having one end connected to the piston, And a spring (not shown) provided inside the piston cylinder 56. The spring urges the piston in a direction in which the piston rod 58 protrudes from the piston cylinder 56. The piston cylinder 56 may be filled with damper oil or the like, and the impact is mitigated by the relative movement of the piston cylinder 56 and the piston rod 58 in the compression direction. In addition, since the structure of the piston damper 54 is well-known, detailed description is abbreviate | omitted.

Further, when the piston cylinder 56 moves forward with respect to the case 52, the step portion 60 of the piston cylinder 56 abuts on the front end portion 52A of the case 52 so that the forward movement of the piston cylinder 56 stops. It has become. Further, the front end portion 56 A of the piston cylinder 56 protrudes from the front end portion 52 A of the case 52 in a stopped state in which the forward movement of the piston cylinder 56 is stopped.

On the other hand, a disc-shaped flange 64 is formed at the axially intermediate portion of the outer peripheral portion of the piston rod 58. A portion of the piston rod 58 behind the collar portion 64 is a slider 66. The intermediate portion of the slider 66 passes through a through hole (not shown) formed in the rear end portion 52B of the case 52.

Further, the flange portion 64 of the piston rod 58 comes into contact with the rear end portion 52B of the case 52 when the piston rod 58 moves rearward (in the direction of arrow B in FIG. 2) with respect to the case 52. The rearward movement of 58 is stopped. In this stopped state, the slider 66 of the piston rod 58 protrudes from the rear end portion 52B of the case 52 by a predetermined length.

Therefore, immediately before the end plate 16 enters the fully open state (open state) shown in FIG. 3, the convex portion 34 B of the upper rack 34 comes into contact with the rear end portion 66 A of the slider 66 of the piston rod 58, and On the other hand, when the piston cylinder 56 moves forward, the stepped portion 60 of the piston cylinder 56 comes into contact with the front end portion 52A of the case 52 and stops.

For this reason, the piston rod 58 moves in the compression direction (in the direction of arrow A in FIG. 3) with respect to the piston cylinder 56, so that the impact during the opening operation of the end plate 16 is mitigated.

On the other hand, immediately before the end plate 16 enters the fully closed state (closed state) shown in FIG. 1, the back surface 16 A of the end plate 16 contacts the front end portion 56 A of the piston cylinder 56. By moving backward, the flange 64 of the piston rod 58 comes into contact with the rear end 52B of the case 52 and stops.

For this reason, the piston cylinder 56 moves in the compression direction (in the direction of arrow B in FIG. 1) with respect to the piston rod 58, so that the impact during the closing operation of the end plate 16 is mitigated.

(Action / Effect)
Next, the operation and effect of one embodiment of the present invention will be described.
As shown in FIG. 1, in the closed state of the end plate 16, the end plate 16 presses the front end portion 56 A of the piston cylinder 56 rearward, and the piston damper 54 is against the case 52 fixed to the front surface 14 B of the drawer 14. The piston cylinder 56 is moving rearward. Further, the slider 66 of the piston rod 58 protrudes from the rear end portion of the case 52 by a predetermined length.

When the end plate 16 is opened from the closed state of the end plate 16, the upper rack 34 of the moving direction converting mechanism 26 is moved forward via the stay 24 due to the swing of the end plate 16 in the forward direction (the direction of arrow C in FIGS. 1 and 2). Move horizontally (in the direction of arrow A in FIG. 2). When the upper rack 34 moves forward (in the direction of arrow A in FIG. 2), the rotary gear 40 rotates, and the lower rack 42 moves horizontally in the rear (in the direction of arrow B in FIG. 2). At this time, due to the gear ratio (N2 / N1) between the first tooth portion 40A and the second tooth portion 40B of the rotary gear 40, the movement of the lower rack 42 compared to the amount of drawing of the end plate 16 (the movement distance of the upper rack 34). The distance becomes longer (N2 / N1 times).

Further, the pressing bar 28 fixed to the lower rack 42 attempts to move horizontally backward (in the direction of arrow B in FIG. 2) integrally with the lower rack 42, and a stopper 46 fixed to the side plate 12A of the cabinet body 12 is provided. Press backward (in the direction of arrow B in FIG. 4). As a result, the drawer 14 is kicked forward (in the direction of arrow A in FIG. 4) with respect to the cabinet body 12.

Therefore, in the present embodiment, the end plate 16 is swung forward (in the direction of arrow C in FIGS. 1 and 2), and thereby the biasing force (closing force) of the closer that biases the drawer 14 in the closing direction is applied. In contrast, the drawer 14 can be easily pulled out.

In the present embodiment, the convex portion 34B of the upper rack 34 abuts the rear end portion 66A of the slider 66 of the piston rod 58 immediately before the end plate 16 enters the fully open state (open state) shown in FIG. When the piston cylinder 56 moves forward with respect to the case 52, the stepped portion 60 of the piston cylinder 56 comes into contact with a cylinder stopper contact portion (not shown) of the case 52 and stops. For this reason, the piston rod 58 moves in the compression direction (the direction of arrow A in FIG. 3) with respect to the piston cylinder 56, so that the impact during the opening operation of the end plate 16 is reduced.

On the other hand, when the end plate 16 is closed, the upper rack 34 is moved backward (in the direction of arrow B in FIG. 2) via the stay 24 by swinging the end plate 16 in the rear direction (in the direction of arrow D in FIGS. 2 and 3). Move horizontally. When the upper rack 34 moves rearward (in the direction of arrow B in FIG. 2), the rotating gear 40 rotates in the clockwise direction (in the direction of arrow E in FIG. 1), and the lower rack 42 moves forward (in the direction of arrow A in FIG. 2). Move horizontally to). At this time, due to the gear ratio (N2 / N1) between the first tooth portion 40A and the second tooth portion 40B of the rotary gear 40, the movement of the lower rack 42 compared to the pulling amount of the end plate 16 (the movement distance of the upper rack 34). The distance becomes longer (N2 / N1 times).

Further, the pressing bar 28 that comes into contact with the stopper 46 fixed to the side plate 12A of the cabinet main body 12 moves together with the lower rack 42 in the horizontal direction (in the direction of arrow A in FIG. 2). Therefore, the pressing bar 28 does not interfere with the stopper 46, and the drawer 14 can be stored backward (in the direction of arrow B in FIG. 4) with respect to the cabinet body 12.

Further, immediately before the end plate 16 enters the fully closed state (closed state) shown in FIG. 1, the end plate 16 contacts the front end portion 56 A of the piston cylinder 56, and the piston cylinder 56 moves rearward with respect to the case 52. Then, the flange portion 64 of the piston rod 58 comes into contact with the rear end portion 52B of the case 52 and stops. For this reason, the piston cylinder 56 moves in the compression direction (the direction of arrow B in FIG. 1) with respect to the piston rod 58, and the impact during the closing operation of the end plate 16 is reduced. As a result, the impact when opening and closing the end plate 16 can be reduced.

As described above, in the present embodiment, the operability when the drawer 14 is pulled out can be improved and the operability when the drawer 14 is stored can be improved.

Further, in the present embodiment, the piston damper 54 having one end portion as the front end portion 56A and the other end portion as the rear end portion 66A is inserted in the case 52 fixed to the front surface 14B of the drawer 14 in the front-rear direction. It was provided to be movable. For this reason, the single piston damper 54 can buffer both the forward movement of the upper rack 34 and the backward swing of the end plate 16, and can reduce the impact when the end plate 16 is opened and closed. .

(Other embodiments)
In the above, the present invention has been described in detail with respect to specific embodiments. However, the present invention is not limited to the above embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art.

For example, the attachment of the shock absorber 50 to the drawer 14 of the piston damper 54 may be configured as shown in FIGS.

As shown in FIG. 6, in this embodiment, the front surface 14 B of the drawer 14 is covered with a front cover 70. The front cover 70 is attached to the drawer 14 by engaging claws 72 provided on the inner side surfaces of the left and right side walls 70 A with engagement holes 74 formed in the drawer 14. In addition, a damper support portion 76 (damper support member) as a damper support member is formed on the inner side surface of one side wall 70 A of the front cover 70, and this damper support portion 76 is formed of the piston cylinder 56 of the piston damper 54. The outer periphery is supported so as to be movable in the front-rear direction.

A notch 78 is formed in the side wall portion 14A of the drawer 14 adjacent to the damper support portion 76 of the front cover 70, and a damper stopper 80 (damper support member) as a damper support member is inserted into the notch 78. Yes. The damper stopper 80 includes a closing portion 80A that closes the notch 78, and a damper support portion 80B that supports the outer peripheral portion of the piston cylinder 56 of the piston damper 54 so as to be movable in the front-rear direction.

As shown in FIG. 8, the damper support portion 80B of the damper stopper 80 abuts against the stepped portion 60 of the piston cylinder 56 and supports the piston cylinder 56 so as not to fall forward (in the direction of the arrow FR).

As shown in FIG. 7, an opening 82 is formed in the closing portion 80 A of the damper stopper 80. Further, as shown in FIG. 8, the damper stopper 80 can be easily removed from the drawer 14 by inserting the tip end portion 84 A of the jig 84 into the opening 82 of the damper stopper 80.

Therefore, in this embodiment, the damper supporter 80B of the damper stopper 80 is not brought into contact with the stepped portion 60 of the piston cylinder 56 by removing the damper stopper 80 from the drawer 14 by the jig 84. For this reason, the piston damper 54 can be pulled out forward (in the direction of the arrow FR) from the drawer 14. As a result, the piston damper 54 can be easily replaced.

In the above embodiment, the drawer body movement assisting device of the present invention is applied to the drawer 14 of the kitchen cabinet 10, but the drawer body movement assisting device of the present invention can also be applied to a drawer such as a desk.

Claims

A drawer provided in the case so as to be linearly movable in the front-rear direction;
A front plate provided on the front surface of the drawer so as to be able to swing forward about the lower side as a rotation center;
A connecting member connected to the front plate and moving forward by swinging the front plate forward;
A pressing member provided on the drawer so as to be movable in the front-rear direction;
A moving direction conversion mechanism that converts the forward movement of the connecting member into the backward movement of the pressing member;
A stopper provided in the housing for preventing the backward movement of the pressing member;
A buffer mechanism that is provided on the front surface of the drawer, and that buffers the forward movement of the connecting member and the backward swing of the front plate;
Drawer movement assisting device.
The buffer mechanism includes a damper support member fixed to the front surface of the drawer,
A piston damper provided so as to be movable in the front-rear direction by the damper support member, one end abutting against the connecting member and the other end abutting against the front plate;
A drawer movement assisting device according to claim 1, comprising: