JP2018193675A - Damper device and door supporting device - Google Patents

Abstract

To provide a damper device which has highly effective shock absorbing effect at the time of door opening/closing with simplified structure.SOLUTION: Facing a frame 1 with an opening 1a, a door supporting device 3 for supporting a door 2 comprises a pair of hinge devices 4, a connection shaft 8 bridges between the pair of hinge devices 4, and a dumper device 9. The hinge devices 4 have a first hinge 5 fixed on the frame 1, a second hinge 6 fixed on the door 2, and an arm 7 with a base part thereof rotatably connected to the first hinge 5 and with a tip part thereof rotatably connected to the second hinge 6. The connection shaft 8 has both ends fixed to the arm 7. The damper device 9 has a support member 10 fixed to the frame 1, a linear damper 20 supported by the support member 10, and a rotatable member 30 with a pressing part 33, which is fixed to the connection shaft 8. When the door 2 is moving to open, the pressing part 33 of the rotatable member 30 contacts a tip 22a of the linear damper 20 and absorbs the impact.SELECTED DRAWING: Figure 4A

Description

  The present invention relates to a damper device that alleviates an impact when a door is opened or closed, and a door support device including the damper device.

  A door support device that rotatably supports a door on a housing (target) having an opening includes a pair of hinge devices. The hinge device of Patent Document 1 includes a first hinge body fixed to the inner surface of the opening side edge of the housing, a second hinge body fixed to the housing side surface of the door side edge, and a base end portion of the first hinge body. An arm that is rotatably connected to the first hinge body and has a tip end rotatably connected to the second hinge body.

  A connecting shaft is spanned between the pair of hinge devices. More specifically, both ends of the connecting shaft are fixed to the base ends of the arms of the pair of hinge devices, and are arranged on the rotation axis of the base ends of the arms. By this connecting shaft, the arms of the pair of hinge devices are rotated in synchronization with each other so that the door can be opened and closed stably.

  In Patent Document 1, a linear damper is incorporated in each of the hinge devices so as to relieve an impact when the door is closed. The linear damper is provided at the base end of the arm, and when the door rotates in the closing direction and reaches a predetermined angle before the fully closed position, the tip of the linear damper hits the receiving portion of the first hinge body. It is like that.

  As shown in Patent Document 2, a more general door damper device includes a linear damper that is separate from the hinge device and is fixed to the housing. The front end of the linear damper hits the door immediately before the door reaches the fully closed position, so that the shock is mitigated.

International Publication WO2016 / 147873 JP 2006-104680 A

Since the damper device disclosed in Patent Document 1 is incorporated in the hinge device, the structure of the hinge device is complicated.
In the damper device disclosed in Patent Document 2, the damper device works only in the vicinity of the fully closed position of the door, and particularly when the weight of the door is large, the shock cannot be sufficiently absorbed.

  In order to solve the above-described problems, the present invention provides a hinge that couples the door to the object in a damper device that reduces an impact when the door moves in an opening direction or a closing direction with respect to an object having an opening. The apparatus is separate from the device, and has a support member fixed to the object, a damper having a receiving portion and supported by the support member, a pressing portion, and rotating as the door is opened and closed. A rotating member, wherein the pressing portion of the rotating member hits the receiving portion of the damper during the movement of the door in the opening direction or the closing direction.

  According to the above configuration, since the damper device is separated from the hinge device, the configuration of the hinge device can be simplified. Further, since the pressing portion of the rotating member hits the receiving portion of the damper as the rotating member rotates during the movement in the opening direction or the closing direction of the door, the damper device can be operated in a relatively wide range of movement of the door. And the impact mitigating effect can be enhanced.

Preferably, the damper is a linear damper, and a tip portion of the linear damper is provided as the receiving portion.
The support member has a guide portion in which a slide hole for slidably supporting the linear damper is formed at an intermediate portion in the extending direction of the linear damper, and the linear damper extends in the support member. One end and the other end of the direction are fixed to the object by a fixture.
According to the above configuration, the support member can stably receive the impact load from the rotating member via the linear damper.

  According to another aspect of the present invention, there is provided a door support device that supports a door that opens and closes an object having an opening, a hinge device that forms a pair connecting the door to the object, and a hinge that forms the pair A connecting shaft that spans between the devices, and a damper device that alleviates an impact when the door moves in the opening direction or the closing direction. Each of the hinge devices is fixed to the object. A hinge body, a second hinge body fixed to the door, a base end portion rotatably connected to the first hinge body, and a distal end portion connected to the second hinge body; Both ends of the connection shaft are fixed to the arm, and the damper device includes a support member fixed to the object, a damper supported by the support member and having a receiving portion, and the connection shaft. Anda rotating member having a pressing portion is fixed to said pressing portion of said rotating member is in the middle of the movement of the opening direction or closing direction of the door corresponds to the receiving portion of said damper.

According to the above configuration, since the damper device is separated from the hinge device, the configuration of the hinge device can be simplified.
Since the pressing portion of the rotating member hits the receiving portion of the damper as the rotating member rotates during the movement in the opening direction or closing direction of the door, the damper device can be operated in a relatively wide range of movement of the door. , The impact relaxation effect can be enhanced.
Since the rotating member of the damper device is fixed to the connecting shaft, the configuration for interlocking the rotating member with the door can be simplified.

Preferably, the central axis of the connecting shaft coincides with the rotational axis of the base end portion of the arm.
Preferably, the rotating member has a pair of halved members, and the pair of halved members are connected to each other in a state of sandwiching the connecting shaft, and one of the pair of halved members has a radial direction. The pressing portion protruding outward is formed.

Preferably, the damper is a linear damper, and a tip portion of the linear damper is provided as the receiving portion, and the linear damper is disposed in a space between the target and the connecting shaft.
According to the above configuration, the dead space can be effectively used.

  Preferably, the second hinge main body is rotatably connected to a tip portion of the arm, and the door is adapted to move in parallel during a moving stroke between a closed position and an open position. The damper device alleviates an impact when the door moves in the opening direction.

  ADVANTAGE OF THE INVENTION According to this invention, the high impact mitigation effect when a door opens or closes can be acquired, aiming at simplification of a structure.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the furniture incorporating the door support apparatus which concerns on one Embodiment of this invention, and shows the state of a door fully closed, the state of a door half-opening, and the state of a door fully open from right. FIG. 2 is a view corresponding to FIG. 1 with the door omitted. It is a perspective view of the damper device of the door support device, and shows a state when the door is fully closed. It is a perspective view of the said damper apparatus, and shows the state at the time of a door half-opening. It is a perspective view of the said damper apparatus, and shows the state when a door is fully opened. It is a plane sectional view of the above-mentioned damper device, and shows a state when a door is fully closed. It is a plane sectional view of the above-mentioned damper device, and shows a state when the door is half open. It is a plane sectional view of the above-mentioned damper device, and shows a state when the pressing part of the rotating member hits the tip part of the linear damper. It is a plane sectional view of the above-mentioned damper device, and shows a state when the door is fully opened. It is a disassembled perspective view of the said damper apparatus.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the furniture includes a housing 1 (target) having an opening 1 a, a door 2, and a door support device 3 that supports the door 2 so that it can be opened and closed with respect to the housing 1. .
In this embodiment, one side edge (on the left side of the door 2) is placed on one side edge of the opening 1a of the housing 1 (in this embodiment, the side edge located on the left when the housing 1 is viewed from the opening 1a side). Side edges) are supported. Hereinafter, the opening 1a side of the housing 1 will be referred to as the front side, and the back side of the housing 1 will be described as the rear side.
In FIG. 1 and FIG. 2, the housing 1 and the door 2 are shown with the dimensions of height, width, and depth being significantly smaller than actual.

  The door support device 3 includes a pair of hinge devices 4 installed at two locations that are vertically separated from each other, a connecting shaft 8 that extends in the vertical direction and spans between the pair of hinge devices 4, and the hinge device 4. And a damper device 9 forming a body.

As shown in FIG. 2, the hinge device 4 includes a first hinge body 5, a second hinge body 6, and an arm 7 that couples the hinge bodies 5 and 6.
The first hinge body 5 is fixed to the inner surface of the left side edge of the housing 1. The second hinge body 6 is fixed to the surface of the door 2 facing the housing 1.
A base end portion of the arm 7 is rotatably connected to the first hinge body 5, and a distal end portion is rotatably connected to the second hinge body 6.

  A rotation transmission mechanism (not shown) is built in the arm 7. The rotation transmission mechanism rotates the second hinge body 6 in the opposite direction with respect to the distal end portion of the arm 7 when the base end portion of the arm 7 rotates with respect to the first hinge body 5. ing. Since the amount of rotation of the arm 7 with respect to the first hinge body 5 and the amount of rotation of the second hinge body 6 with respect to the arm 7 are the same, as shown in FIG. Look in the same direction. Thereby, the door 2 passes from the fully closed position (movement limit position in the closing direction) shown on the right side in FIG. 1 to the fully open position (movement limit position in the opening direction) shown on the left side through the half-open position shown in the center. Translate.

  The arms 7 of the pair of hinge devices 4 have boss portions 7a on opposite surfaces thereof, and both end portions of the connecting shaft 8 are inserted and fixed to the boss portions 7a. The central axis of the connecting shaft 8 coincides with the rotation axis of the base end portion of the arm 7 with respect to the first hinge body 10.

  When the arm 7 of the pair of hinge devices 4 is rotated along with the opening / closing operation of the door 2, the connecting shaft 8 is rotated together with the arm 7 around the central axis. Thereby, the arm 7 of a pair of hinge apparatus can be rotated synchronously, and the door 2 can be opened and closed stably.

The structure of the door support device 3 described above is known as disclosed in Patent Document 1. Next, the damper device 9 constituting the characteristic part of the present invention will be described.
In the present embodiment, the damper device 9 is used to alleviate the impact at the fully opened position when the door 2 is opened.
As shown in FIGS. 1 and 2, the damper device 9 is separate from the pair of hinge devices 4 and is installed in the vicinity of the upper hinge device 4.

As shown in FIGS. 3 to 5, the damper device 9 is fixed to the support member 10 fixed to the inner surface of the housing 1, the linear damper 20 (damper) supported by the support member 10, and the connecting shaft 8. Rotating member 30.
The support member 10 and the linear damper 20 are disposed so as to enter the space between the connecting shaft 8 and the inner surface of the housing 1.

  The support member 10 has a long and narrow rectangular shape in the front-rear direction, and has a guide portion 11 at an intermediate portion in the front-rear direction. The guide portion 11 is formed with a slide hole 11a having an oval cross section penetrating in the front-rear direction. An accommodation space 12 a that is continuous with the slide hole 11 a is formed in the rear portion 12 of the guide portion 11. The front portion 13 of the support member 10 has a recess 13a that extends linearly in the front-rear direction and continues to the slide hole 11a.

  The support member 10 has a flat mounting surface 10a extending from the rear portion 12 to the front portion 13, and the screw 18 (see FIG. 3A; see FIG. 3A) in a state where the mounting surface 10a hits the inner surface of the housing 1. It is fixed to the housing 1 by a fixing tool). Reference numeral 19 denotes a work hole for inserting the screw 18. The fixing points by the screws 18 are the four corners of the support member 10, that is, two places at the front end and two places at the rear end. As described above, since the fixing portion by the screw 18 is separated in the front-rear direction across the guide portion 11, when an impact load is applied to the linear damper 20 as will be described later, the load can be stably received. .

As shown in FIG. 5, the linear damper 20 includes two damper elements 21 and a cover 22 that covers these damper elements 21.
The damper element 21 used in the present embodiment includes a cylinder 21a, a piston (not shown) accommodated in the cylinder 21a, and a rod 21b fixed to the piston and protruding from the cylinder 21a. The rod 21b has a large-diameter base end portion 21c.

  When the damper element 21 receives an impact load in a shortened direction, the viscous fluid passes through the orifice formed in the piston or cylinder 21a, and the impact is mitigated by the resistance of the viscous fluid at that time. A return spring (not shown) is built in the cylinder 21a.

  The two damper elements 21 are arranged vertically so as to extend in the front-rear direction. The cover 22 is formed of an oblong cylinder with a closed end, and the cylinders 21a of the two damper elements 21 are inserted and fixed from the base end opening. The distal end portion 22a of the cover 22 is provided as a receiving portion that receives an impact load from the rotating member 30 as described later.

  As shown in FIG. 4A, the cover 22 of the linear damper 20 is slidably inserted into the slide hole 11a of the support member 10 and protrudes forward and is accommodated in the recess 13a. The rod portion 21b of the linear damper 20 is accommodated in the accommodating space 12a, and the base end portion 21c of the rod portion 21b is fixed to the rear wall of the accommodating space 12a.

The rotating member 30 is composed of a pair of halved members 31 and 32. The inner peripheral surfaces of the half members 31 and 32 form an arc surface along the outer peripheral surface of the connecting shaft 8. The half members 31 and 32 are arranged on both sides of the connecting shaft 8, and both circumferential ends thereof are connected to each other by bolts 35 and nuts 36. By tightening with the bolt 35 and the nut 36, the inner peripheral surfaces of the half members 31, 32 strongly contact the outer peripheral surface of the connecting shaft 8, whereby the rotating member 30 is fixed to the connecting shaft 8.
The fixing of the rotating member 30 to the connecting shaft 8 may be further strengthened by pressing the end of a set screw screwed into one of the half members 31 and 32 against the outer peripheral surface of the connecting shaft 8. .

  One half member 31 is formed with a protrusion 31 a extending in the axial direction of the connecting shaft 8, and this protrusion 31 a is fitted into a groove 8 a extending in the axial direction formed on the outer surface of the connecting shaft 8. The rotation member 30 is not rotatable relative to the connecting shaft 8.

  At one end in the circumferential direction of the other half member 32, a pressing portion 33 protruding outward in the radial direction is formed. The pressing portion 33 has a flat pressing surface 33a. The extension surface of the pressing surface 33 a passes through the central axis of the connecting shaft 8.

  The operation of the damper device 9 having the above configuration will be described. When the door 2 is in the fully closed state shown on the right side of FIGS. 1 and 2, the linear damper 20 of the damper device 9 protrudes forward from the guide portion 11 of the support member 10 by the maximum amount as shown in FIGS. 3A and 4A. Yes. The pressing surface 33 a of the pressing portion 33 of the rotating member 30 is separated from the tip of the linear damper 20 by about 130 °.

  When the user pulls the door 2 forward, the arm 7 of the hinge device 4 rotates with respect to the first hinge body 10, and accordingly, the connecting shaft 8 also rotates. Then, as shown in FIGS. 3B and 4B, the rotating member 20 of the damper device 9 fixed to the connecting shaft 8 rotates in the same direction, that is, in the clockwise direction, and the pressing surface 33 a is the tip portion 22 a of the linear damper 20. Get closer to. However, even if the door 2 is half open (the state shown in the center portion in FIG. 1), the pressing surface 33 a does not reach the tip end portion 22 a of the linear damper 20.

  When the user further moves the door 2 to the left from the half-open state, the arm 7 and the connecting shaft 8 further rotate, and accordingly, the rotating member 20 further rotates clockwise, as shown in FIG. 4C. As described above, the pressing surface 33a hits the front end portion 22a of the linear damper 20 just before a predetermined angle (about 25 ° in this embodiment) of the rotation limit position corresponding to the fully open position of the door 2.

Further, in the process of moving the door 2 to the left until the door 2 reaches the fully open position, the rotating member 30 continues to rotate clockwise, and the pressing surface 33a continues to press the linear damper 20.
When the fully open position of the door 2 is reached, the base end portion of the arm 7 in the hinge device 4 hits a stopper portion (not shown) of the first hinge body 5, and further movement of the door 2 is prohibited. As a result, the rotation member 30 reaches the rotation limit position shown in FIGS. 3C and 4D, and the linear damper 20 is in the most retracted state. In this state, the pressing surface 33 a is substantially orthogonal to the linear damper 20.

As described above, since the buffering action of the linear damper 20 works from a predetermined angle before the rotation limit position in the opening direction of the rotation member 30, the door 2 does not receive a large impact at the fully open position, and the impact of the door 2 It is possible to eliminate the vibration (swing) caused by. As a result, a stable opening operation of the door 2 can be ensured even when the weight of the door 2 is particularly large.
Since the return spring of the linear damper element 21 does not have enough force to push back the heavy door 2, the door 2 can maintain the fully opened state.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
The present invention can also be applied to a damper device that reduces the impact at the fully closed position of the door. In this case, the directions of the support member 10, the linear damper 20, and the rotating member 30 are opposite to those shown in FIGS. 3 and 4, and the tip of the linear damper 20 protrudes rearward (backward direction of the housing 1). 30 rotates counterclockwise when the door closes and hits the linear damper.

  The door support device may include a damper device that operates during an opening operation and a damper device that operates during a closing operation. In this case, the rotating members of the two damper devices may be fixed to the connecting shaft. Also, one of the two damper devices may be configured by the damper device of the present invention, and the other damper device may be configured as disclosed in Patent Document 1.

  In the above embodiment, when the door 2 reaches the fully open position, the base end portion of the arm 7 in the hinge device 4 hits the stopper portion (not shown) of the first hinge body 5 so that further movement of the door 2 is prohibited. However, such a movement restriction structure may be omitted. In this case, the movement of the door 2 is restricted by the damper device.

The door may be supported by the upper edge portion or the lower edge portion of the housing by the hinge device so as to open and close in the vertical direction. In this case, the connecting shaft extends horizontally.
The tip of the arm may be fixed to the second hinge body. In this case, the door rotates without moving in parallel.
The central axis of the connecting shaft may be offset from the rotational axis of the base end portion of the arm 7 with respect to the first hinge body 10.
As the damper, a rotary damper may be used in addition to the linear damper.
The present invention is also applicable to door support devices other than furniture.

  The present invention is applicable to a door support device.

1 body (target)
DESCRIPTION OF SYMBOLS 1a Opening 2 Door 3 Door support apparatus 4 Hinge apparatus 5 1st hinge main body 6 2nd hinge main body 7 Arm 8 Connecting shaft 9 Damper apparatus 10 Support member 10a Mounting surface 11 Guide part 11a Slide hole 18 Screw (fixing tool)
20 Linear damper (damper)
22a Tip (receiving part)
30 Rotating member 31, 32 Half member 33 Pressing part

Claims (8)

In a damper device that mitigates impact when a door moves in an opening direction or a closing direction with respect to an object having an opening,
Separate from the hinge device connecting the door to the object,
A support member fixed to the object;
A damper having a receiving portion and supported by the support member;
A rotating member having a pressing portion and rotating in accordance with opening and closing of the door;
With
The damper device according to claim 1, wherein the pressing portion of the rotating member hits the receiving portion of the damper during the movement of the door in the opening direction or the closing direction. The damper device according to claim 1, wherein the damper is a linear damper, and a tip portion of the linear damper is provided as the receiving portion.
  The support member has a guide portion in which a slide hole for slidably supporting the linear damper is formed at an intermediate portion in the extending direction of the linear damper. The damper device according to claim 2, wherein the one end and the other end are fixed to the object by a fixture. In a door support device that supports a door that opens and closes the opening for an object having an opening,
A pair of hinge devices for connecting the door to the object, a connecting shaft spanned between the pair of hinge devices, and a damper device for reducing shock when the door moves in the opening direction or the closing direction And comprising
Each of the hinge devices includes a first hinge body fixed to the object, a second hinge body fixed to the door, and a base end portion rotatably connected to the first hinge body. Having an arm connected to the second hinge body,
Both ends of the connecting shaft are fixed to the arm,
The damper device includes a support member fixed to the object, a damper supported by the support member and having a receiving portion, and a rotating member fixed to the connecting shaft and having a pressing portion. ,
The door support device according to claim 1, wherein the pressing portion of the rotating member hits the receiving portion of the damper during the movement of the door in the opening direction or the closing direction.   The door support device according to claim 4, wherein a central axis of the connecting shaft is coincident with a rotation axis of a base end portion of the arm.   The rotating member has a pair of halved members, and the pair of halved members are connected to each other with the connecting shaft interposed therebetween, and one of the pair of halved members is radially outward. The door support device according to claim 4 or 5, wherein the protruding pressing portion is formed. The damper is a linear damper, and the tip of the linear damper is provided as the receiving part,
The door support device according to any one of claims 4 to 6, wherein the linear damper is disposed in a space between the object and the connecting shaft. The second hinge body is pivotably connected to the tip of the arm, and the door is adapted to move in parallel during a movement stroke between a closed position and an open position.
The door support device according to any one of claims 4 to 7, wherein the damper device relieves an impact when the door moves in the opening direction.

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