JP4895382B2 - Shock absorber - Google Patents

Description

  The present invention relates to a shock absorber for folding doors mounted on furniture such as sink cabinets and hanging cabinets or furniture such as cupboards and bookcases, and relates to a shock absorber that brakes sudden rotation between door plates when closing a folding door.

  The folding door is provided with at least two door plates, and the adjacent door plates are connected to each other via a hinge so as to be rotatable in the horizontal direction, and the upper end portion of the door plate is moved to a rail laid thereabove via a runner. By being supported freely, the door plates are structured to open and close while rotating.

  As described above, the folding door opens and closes while the door plates rotate, so that when the door is closed, the door plates abut against the left and right door frames and the crest surfaces of the door plates abut against each other. For this reason, when the door is suddenly rotated to the end when the folding door is closed, a large impact sound or vibration is generated. Repeated application of this impact to the folding door or door frame causes the parts to be damaged or deteriorated earlier. There is also a problem peculiar to folding doors, in which the doorboard once closed to the end bounces off due to an impact, and the doorboards are folded in a semi-closed state. In order to solve this kind of problem, it is effective to brake the sudden rotation of the door plates with each other when the folding door is closed with a shock absorber.

Conventionally, as a shock absorber that brakes sudden rotation when the door plate is closed, the door plate (door) is attached to the inner side surface of the door frame (door) via a hinge, and the door plate (door) is in contact with the crate surface of the door plate (door). There is known an embedded damper that exerts a force to brake the rotation of the door plate (door). This type of damper includes, in a cylinder embedded in the door frame (側面), a piston that protrudes and protrudes from the inner side surface of the door frame (框) and a restoring spring that biases the piston to the side that always protrudes. When the door is extremely closed, the door end of the door plate (door) comes into contact with the piston, and the piston is pushed against the repulsive force of the restoring spring, so that the repulsive force of the restoring spring is passed through the piston to the door plate (door). To act on. (Patent Documents 1 and 2)
Japanese Utility Model Publication No. 53-16661 Japanese Utility Model Publication No.59-111279

  In order to attach the above-described conventional shock absorber to the folding door, it is necessary to form a mounting hole for embedding the damper in the door plate, and therefore, to attach the shock absorber, a separate hole processing or the like must be performed on the door plate. In addition, it is difficult to attach the conventional shock absorber to the front surface of the folding door, that is, the surface that can be seen from the outside (front side) when the folding door is closed, because the design of the folding door is damaged.

  The problem to be solved by the present invention is that a shock absorber and a shock absorbing mechanism that can be attached to the front of the folding door without the need to drill holes in the door plate in order to attach the shock absorbing device and without deteriorating the design of the folding door. To provide a unit.

  In order to solve the above-mentioned problem, the shock absorber according to the first configuration of the present invention brakes turning when a folding door is closed, in which one door plate and the other door plate are connected to each other in a horizontal direction. A buffer mechanism unit attached to a connecting end of the one door plate with the other door plate, and a contact body fixed to the connecting end of the other door plate with the one door plate. The buffer mechanism unit includes a handle that is used to open and close the folding door, a fixing member that is integrated with the handle and is fixed to the front surface of the one door plate, and is housed in the fixing member. And a damper that is compressed in the horizontal direction and repels from the other door plate side, and a contact member that is connected to a tip of the damper on the other door plate side, and the contact member when the folding door is closed And the contact body contact each other, It is characterized in that the damper is compressed by pressing the contact member against the contact body as the door plates turn in the closing direction.

  In the shock absorber according to the first configuration, the fixing member includes a damper position adjusting mechanism built in the fixing member so as to enable adjustment of a holding position of the damper, and an instrument for operating the damper position adjusting mechanism. An instrument insertion port opened at the end of the fixing member opposite to the side on which the abutting member is provided, and the fixing to close the instrument insertion port. An outer appearance (at least shape among shape, pattern, color, texture) of the contact member in a state of being attached to the fixing member, and a lid body detachably attached to the opposite end of the member It is desirable that the external appearances of the lid and the lid are the same.

  Further, it is desirable that a curved surface portion is formed on the outer surface of the contact member so as to smoothly rotate the door plates in a state where the contact member and the contact body are in contact with each other. .

  A shock absorber according to a second configuration of the present invention is a shock absorber that brakes rotation when closing a folding door in which one door plate and the other door plate are connected to each other so as to be rotatable in the horizontal direction. A first buffer mechanism unit attached to a connecting end portion of the one door plate with the other door plate; and a second buffer mechanism unit attached to a connection end portion of the other door plate with the one door plate. The first buffer mechanism unit includes a first handle used to open and close the folding door, a first fixing member that is integrated with the first handle and fixed to the front surface of the one door plate, A first damper that is held in a state of being accommodated in the first fixing member and that is compressed and repels in a horizontal direction from the other door plate side, and is connected to a front end portion on the other door plate side of the first damper. And a second shock absorber. The unit includes a second handle used for opening and closing the folding door, a second fixing member that is integrated with the second handle and is fixed to the front surface of the other door plate, and the second fixing member. A second damper that is held in a state where it is housed and is compressed in the horizontal direction from the one door plate side and repels, and a second abutment that is connected to a tip portion of the second damper on the one door plate side. Members, the contact members of both units contact each other, and the dampers of both units are compressed at the same time by pressing the contact members with each other as the door plates turn in the closing direction. It is characterized by being configured.

  In the shock absorber according to the second configuration, the first fixing member includes a first damper position adjusting mechanism incorporated so as to enable adjustment of a holding position of the first damper, and the first damper position. At the end of the first fixing member opposite to the side on which the first contact member is provided so that an instrument for operating the adjusting mechanism can be inserted into the first fixing member. An open first instrument insertion port, and a first lid body detachably attached to the opposite end of the first fixing member so as to close the first instrument insertion port, It is desirable that the external appearance of the first contact member and the external appearance of the first lid body are the same as each other when the first fixing member is attached. The second fixing member includes a built-in second damper position adjusting mechanism that enables adjustment of a holding position of the second damper, and an instrument for operating the second damper position adjusting mechanism. A second instrument insertion opening opened at an end of the second fixing member opposite to the side on which the second contact member is provided so that the second fixing member can be inserted into the second fixing member; A second lid detachably attached to the opposite end of the second fixing member so as to close the second instrument insertion port, and is attached to the second fixing member. It is desirable that the external appearance of the second contact member and the external appearance of the second lid body be the same.

  In addition, curved surfaces are formed on the outer surfaces of the first contact member and the second contact member so as to smoothly rotate the door plates when they are in contact with each other. Is desirable.

  The shock-absorbing mechanism unit of the present invention is a shock-absorbing mechanism unit that brakes rotation when closing a folding door in which one door plate and the other door plate are rotatably connected to each other in the horizontal direction, and opens and closes the folding door. A handle used in the above, a fixing member that is integrated with the handle and fixed to the front surface of the one door plate, and is held in the fixing member and is compressed in the horizontal direction from the other door plate side. A damper that repels and a contact member that is connected to a tip of the damper on the other door plate side, and the contact member contacts the contact object provided on the other door plate when the folding door is closed. In contact with each other, the damper is compressed by the contact member being pressed against the contact object as the door plates turn in the closing direction.

  In the shock-absorbing mechanism unit of the present invention, the fixing member includes a built-in damper position adjusting mechanism for enabling adjustment of the holding position of the damper, and an instrument for operating the damper position adjusting mechanism. An instrument insertion port opened at the end of the fixing member opposite to the side on which the abutting member is provided so that it can be inserted inside, and the opposite side of the fixing member to close the instrument insertion port It is desirable that the lid member is detachably attached to the end of the contact member, and the appearance of the contact member and the appearance of the lid member are the same as each other when attached to the fixing member.

  Further, it is desirable that a curved surface portion is formed on the outer surface of the contact member so as to smoothly rotate the door plates in a state where the contact member and the contact target are in contact with each other. .

  Since the shock absorber and the shock absorbing mechanism unit configured as described above are attached to the folding door by being fixed to the front surface of the door plate, there is no need to separately drill holes in the door plate in order to attach the shock absorber. And since this damper and the buffer mechanism unit are hold | maintained in the state accommodated in the fixing member integral with the handle used for opening and closing of a folding door, the damper which generate | occur | produces the braking force with respect to a folding door impairs the design of a folding door It can be installed in front of the folding door without any problems.

  Hereinafter, the present invention will be described in detail according to embodiments with reference to the drawings.

[First embodiment]
FIG. 1 is a front view of a folding door apparatus provided with a shock absorber according to a first embodiment of the present invention. 2 is a perspective view of the buffer mechanism unit of the buffer device shown in FIG. 3 is an exploded perspective view of the buffer mechanism unit of the shock absorber shown in FIG. 4 is a perspective view showing an internal structure of the buffer mechanism unit of the buffer device shown in FIG.

  A folding door apparatus 1 shown in FIG. 1 includes a folding door 10 in which a pair of left and right door plates 11 and 12 are connected to each other in a horizontal direction by hinges 21 and 22, a rail 30 laid above the folding door 10, The runners 41 and 42 that support the folding door 10 movably along the rail 30 in a state where the folding door 10 is suspended from the rail 30, the door frame 50 to which the rail 30 is attached, and the door plates 11 and 12 when the folding door 10 is closed. And a shock absorber 100 equipped to brake the sudden rotation of each other. Hinges 21 and 22 are provided on the back of the folding door 10. The hinges 21 and 22 are known hinges that are widely used as hinges for folding doors. The hinges 21 and 22 are provided with a so-called catch mechanism, and when the folding door 10 is closed, when the angle between the door plates 11 and 12 becomes approximately 125 degrees or more, the catch mechanism is activated to force the folding door 10. To the fully closed state. In this example, the shock absorber 100 is provided at a position slightly lower than the center position in the height direction of the folding door 10.

  This shock absorber 100 is connected to the first buffer mechanism unit 111 attached to the connecting end of the front door of one door plate 11 with the other door plate 12 and to the one door plate 11 of the front face of the other door plate 12. And a second buffer mechanism unit 121 attached to the unit.

  As shown in FIGS. 2 to 4, the first buffer mechanism unit 111 includes a handle (first handle) 113 used for opening and closing the folding door 10 and the front surface of one door plate 11 integrated with the handle 113. A fixing member (first fixing member) 112 that is fixed to the damper, a damper (first damper) 114 that is held in the fixing member 112 and is compressed in the horizontal direction from the other door plate 12 side and repels. An abutting member (first abutting member) 115 coupled to the tip of the damper 114 on the other door plate 12 side, and a damper position adjusting mechanism for adjusting the holding position of the damper 114 (first damper position adjustment) Mechanism) 116.

  The second buffer mechanism unit 121 is a unit having the same configuration as the first buffer mechanism unit 111. That is, FIG. 2 thru | or FIG. 4 is also a figure which shows the structure of the 2nd buffer mechanism unit 121, and the 2nd buffer mechanism unit 121 has the handle (2nd handle) 113 used for opening and closing of the folding door 10, A fixing member (second fixing member) 112 that is integrated with the handle 113 and is fixed to the front surface of the other door plate 12, and is held in the fixing member 112 and compressed in the horizontal direction from the one door plate 11 side. The rebound damper (second damper) 114, the contact member (second contact member) 115 connected to the tip of the damper 114 on the other door plate 12 side, and the holding position of the damper 114 are adjusted. And a damper position adjusting mechanism (second damper position adjusting mechanism) 116.

  The units 111 and 121 are attached to the front surfaces of the door plates 11 and 12 so that the contact members (second contact members) 115 abut each other when the folding door 10 is closed. .

  The fixing member 112 is a horizontally long resin member that is fastened to the front surface of the door plates 11 and 12, and has a substantially semicircular cross-sectional shape perpendicular to the front surface of the door plate to which the fixing member 112 is attached. It has a shape. The fixing member 112 is formed with a damper accommodating hole 112a penetrating in the longitudinal direction (horizontal direction), and the damper 114 is inserted and held in the damper accommodating hole 112a. Screw holes 112c are formed at a plurality of positions on the seat 112b of the fixing member 112, and screws (screws) not shown are passed through from the back of the door plates 11 and 12 to the front, screwed into the screw holes 112c and tightened. The fixing member 112 is fixed to the door plates 11 and 12. A pair of metal arm members 118 are fixed to both the left and right ends of the fixing member 112, and a handle 113 is provided so as to hang over the tips of both arm members 118.

  The damper 114 includes a cylindrical cylinder 114a and a piston rod 114b. The cylinder 114a is slidably provided in the damper accommodation hole 112a, and an abutting member 115 is connected to the tip of the piston rod 114b. . The internal configuration of the damper 114 is not particularly limited, and a known one can be appropriately selected in consideration of the buffer performance required for the folding door 10 and the like. Specifically, a damper disclosed as an oil buffer in Japanese Patent Application Laid-Open No. 2004-190470 can be given.

  The contact member 115 includes a cylindrical fitting portion 115a that is slidably inserted into the damper housing hole 112a of the fixing member 112, a contact portion 115c provided at the tip of the fitting portion 115a, and the fixing member 112. A guide portion 115b that is in sliding contact with the top and bottom surfaces and the back surface of the front end portion. The guide portion 115b is provided so as to be movable in the horizontal direction with respect to the fixing member 112. It is urged by a damper 114 to project from the connecting end. The fitting portion 115a is inserted into the damper accommodation hole 112a so as to cover the cylinder 114a of the damper 114 from the piston rod 114b side. The fitting portion 115a protrudes and retracts from the front end side opening portion 112d of the damper accommodating hole 112a as the piston rod 114b moves while slidingly contacting the outer peripheral surface of the cylinder 114a and the inner wall surface of the damper accommodating hole 112a. A curved surface portion 115d is formed on the outer surface of the contact portion 115b in order to smoothly rotate the door plates 11 and 12 with the contact portions 115 in contact with each other.

  The damper position adjusting mechanism 116 includes a cylindrical female screw body 116a that is fitted and fixed in an intermediate portion of the damper housing hole 112a, and a rod-shaped male screw body 116b that is screwed into the female screw body 116a. The base end portion of the cylinder 114a is inserted into the female screw body 116a and coupled to the male screw body 116b, and the holding position in the horizontal direction of the damper 114 can be finely adjusted by adjusting the screwing amount of the male screw body 116b. It has become. That is, by increasing the screwing amount of the male screw body 116b, the holding position of the cylinder 114a is moved to the side where the amount of separation of the contact member 115 from the fixing member 112 when the damper 114 is not compressed is larger. On the contrary, if the screwing amount of the male screw body 116b is reduced, the holding position of the cylinder 114a can be reduced, and the separation amount of the contact member 115 from the fixing member 112 when the damper 114 is not compressed is further reduced. Can be moved to the side. As a result, the effectiveness of the buffer mechanism units 111 and 121 can be adjusted. The amount of screwing of the male screw body 116b into the female screw body 116a is determined by inserting a tool (instrument) such as a screwdriver into the damper housing hole 112a from the base end side opening (instrument insertion port) 112e. It can be adjusted by turning.

  A lid 117 is detachably attached to the base end portion of the fixing member 112 so as to close the instrument insertion port 112e. The lid 117 is a member having the same shape and dimensions as the contact member 115 except for the outer diameter of the portion inserted into the damper housing hole 112a, that is, the cylindrical fitting portion 117a. The fitting portion 117a of the lid body 117 is selected to have a slightly larger outer diameter than the fitting portion 115a of the abutting member 115 so that the fitting portion 117a can be fitted in a state where the fitting portion 117a is properly pressed against the damper housing hole 112a. . Therefore, at least in the state where the fixing member 112 is mounted (particularly in the state where the contact members 115 are pressed against each other), the appearance of the contact member 115 and the appearance of the lid 117 are the same.

  Next, the operation of the shock absorber 100 configured as described above will be described.

  FIG. 5 is a partial plan view showing a series of states when the folding door device 1 is opened and closed. FIG. 6 is a partial perspective view showing a series of states when the folding door device 1 is opened and closed. 5 and 6, (a) shows a state in which the folding door 10 is fully opened. When the folding door 10 is closed from this state, the catch mechanism of the hinges 21 and 22 is activated in the state (c), that is, when the folding angle of the folding door 10 becomes approximately 125 degrees after the state (b). Then, the folding door 10 is forcibly guided to the state (d), that is, the fully closed state. At that time, the contact members 115 of both the buffer mechanism units 111 and 121 come into contact with each other at a predetermined timing after the operation of the catch mechanisms of the hinges 21 and 22 until the folding door 10 is fully closed. As the door plates 11 and 12 turn in the closing direction, the contact members 115 are pressed against each other, so that the dampers 114 of the buffer mechanism units 111 and 121 are simultaneously compressed, and the braking force by the buffer device 100 is effective. start. As a result, the folding door 10 is gently guided to the fully closed state while the rapid rotation of the door plates 11 and 12 at the time of closing is braked.

  As described above, the shock absorber 100 can be attached to the folding door 10 by fastening the fixing members 112 of the shock absorber mechanisms 111 and 121 to the door plates 11 and 12 with screws. There is no need to drill holes in the door plates 11 and 12 separately. Therefore, according to this shock absorber 100, the folding door device 1 provided with the buffer mechanism can be manufactured with fewer man-hours than before. In addition, since the shock absorber 100 is configured so that the two dampers 114 are simultaneously operated, the sudden rotation of the door plates 11 and 12 when the folding door 10 is closed is caused by the strong shock absorbing force of the two dampers 114. You can brake reliably.

  Moreover, both the buffer mechanism units 111 and 121 are held and fixed in a state in which a damper 114 that generates a braking force for the folding door 10 is housed in a fixing member 112 integrated with a handle 113 used to open and close the folding door 10. Since the inside of the member 112 is completely invisible, the member 112 can be attached to the front of the folding door 10 without impairing the design of the folding door 10. Therefore, the folding door device 1 with excellent design that does not cause a sense of incongruity due to the shock absorber 100 being attached to the front surface can be realized. Further, the contact member 115 and the lid body 117 are attached to both ends of the fixing member 112 having a symmetrical shape in the vertical and horizontal directions, and the contact member 115 and the lid body 117 in a state of being attached to the fixing member 112. Since the external appearances are the same, it is possible to realize the buffer mechanism units 111 and 121 that are symmetrical in shape in the vertical and horizontal directions as a whole and that are not conscious of the existence of the movable portion, that is, the contact member 115.

  Further, the shock absorber 100 is extremely durable because the piston rod 114b of the damper 114 and the like are protected by the contact member 115. When the tip of the abutting member 115 is worn due to long-term use, only the abutting member 115 needs to be removed and replaced. Further, by providing the buffer mechanism units 111 and 121 on both the door plates 11 and 12, respectively, the buffer capacity can be improved as compared with the case where only one of the door plates is provided, or the damper 114 is small. Can be adopted.

In the above example, the configuration example of the shock absorber in which the shock absorber units 111 and 121 are provided on both door plates 11 and 12, respectively. However, for example, as shown in FIG. In place of the second buffer mechanism unit 121, a simple contact body (contact target) 119 is fixedly provided, and when the folding door 10 is closed, the contact member 115 and the contact body 119 of the first buffer mechanism unit 111 are provided. The damper 114 of the first buffer mechanism unit 111 is compressed by abutting each other and pressing the abutting member 115 against the abutting body 119 as the door plates 11 and 12 rotate in the closing direction. You may comprise. The contact body 119 may be any member that can exert a reaction force on the first buffer mechanism unit 111.
In the above example, the upper load type folding door device has been described. However, the shock absorber of the present invention functions effectively even if the shock absorber of the present invention is installed in a lower load type folding door device.

The front view of the folding door apparatus provided with the buffering device of the 1st form example of this invention The perspective view of the buffer mechanism unit of the buffer device shown in FIG. The disassembled perspective view of the buffer mechanism unit of the buffer device shown in FIG. The perspective view which shows the internal structure of the buffer mechanism unit of the buffer device shown in FIG. Partial plan view showing a series of states when opening and closing the folding door device The partial perspective view which shows a series of states at the time of opening and closing of the folding door apparatus 1 The fragmentary perspective view of the folding door apparatus provided with the buffering device of the 2nd example of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding door device 10 Folding door 11, 12 Door plate 100 Shock absorber 111 1st buffer mechanism unit 112 Fixing member 112a Damper accommodation hole 112c Screw hole 112e Instrument insertion port 113 Handle 114 Damper 114a Cylinder 114b Piston rod 115 Contact member 115b Contact part 115d Curved surface 116 Damper position adjusting mechanism 117 Lid 119 Contact body (contact object)
121 Second buffer mechanism unit

Claims (5)

A shock absorber that brakes rotation when closing a folding door in which one door plate and the other door plate are connected to each other so as to be rotatable in a horizontal direction,
A buffer mechanism unit attached to a connecting end of the one door plate with the other door plate;
A contact body fixed to a connecting end portion of the other door plate with the one door plate;
The buffer mechanism unit is
A handle used to open and close the folding door;
A fixing member integrated with the handle and fixed to the front surface of the one door plate;
A damper which is held in a state of being accommodated in the fixing member and is compressed and repelled in a horizontal direction from the other door plate side;
A contact member connected to a tip of the other door plate side of the damper,
When the folding door is closed, the contact member and the contact body come into contact with each other, and the contact member is pressed against the contact body as the door plates turn in the closing direction. A shock absorber configured to be compressed. The fixing member is
A damper position adjustment mechanism built in to enable adjustment of the holding position of the damper;
An instrument insertion port opened at an end of the fixing member opposite to the side on which the abutting member is provided so that an instrument for operating the damper position adjusting mechanism can be inserted into the fixing member; ,
A lid body detachably attached to the opposite end of the fixing member to close the instrument insertion port;
2. The shock absorber according to claim 1, wherein an appearance of the contact member and an appearance of the lid body are the same as each other when the fixing member is mounted.   A curved surface portion is formed on an outer surface of the contact member so as to smoothly rotate the door plates in a state where the contact member and the contact body are in contact with each other. The shock absorber according to claim 1 or 2. A shock absorber that brakes rotation when closing a folding door in which one door plate and the other door plate are connected to each other so as to be rotatable in a horizontal direction,
A first shock-absorbing mechanism unit attached to a connecting end of the one door plate with the other door plate;
A second shock-absorbing mechanism unit attached to a connecting end of the other door plate with the one door plate;
The first buffer mechanism unit
A first handle used to open and close the folding door;
A first fixing member integrated with the first handle and fixed to the front surface of the one door plate;
A first damper which is held in a state of being accommodated in the first fixing member and is compressed and repelled in a horizontal direction from the other door plate side;
A first abutting member connected to the tip of the other door plate side of the first damper;
The second buffer mechanism unit is
A second handle used to open and close the folding door;
A second fixing member integrated with the second handle and fixed to the front surface of the other door plate;
A second damper which is held in a state of being accommodated in the second fixing member and is compressed and repelled in a horizontal direction from the one door plate side;
A second abutting member connected to the tip of the second damper on the one door plate side;
The contact members of both units are in contact with each other, and the dampers of both units are compressed at the same time by pressing the contact members with each other as the door plates turn in the closing direction. A shock absorber characterized. A buffer mechanism unit that brakes rotation when closing a folding door in which one door plate and the other door plate are connected to each other so as to be rotatable in a horizontal direction,
A handle used to open and close the folding door;
A fixing member integrated with the handle and fixed to the front surface of the one door plate;
A damper which is held in a state of being accommodated in the fixing member and is compressed and repelled in a horizontal direction from the other door plate side;
A contact member connected to a tip of the other door plate side of the damper,
When the folding door is closed, the abutting member comes into contact with an abutting object provided on the other door plate, and the abutting member is pressed against the abutting object as the door plates turn in the closing direction. The damper mechanism unit is configured such that the damper is compressed as a result.