JP2008248596A - Folding door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly set the time and timing of the action of a braking force in the closing of a folding door, without making any change to a damper. <P>SOLUTION: A buffer 60 comprises a first mounting member 61 which is mounted at the end, connected to the other panel, of one door panel constituting the folding door, a second mounting member 62 which is mounted at the end, connected to one panel, of the other door panel, a hinge portion 63 for rotatably connecting both the mounting members 61 and 62 to each other, and a braking mechanism portion 70. The braking mechanism portion 70 has the damper 71 which is held by the second mounting member 62. An abutting member 73, which is mounted on the damper 71, is pushed by a side edge 61f of the first mounting member 61 and moved with a damper pin 71b in the closing of the folding door. Thus, the damper 71 is compressed, and the rapid rotation of the folding door 10 is braked by a repellent force generated by compression. A recess 61i, which receives the braking mechanism portion 70 when both the mounting members 61 and 62 are folded, is formed in the first mounting member 61. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a folding door device installed in a fitting such as a sink cabinet or a hanging cabinet, or furniture such as a cupboard or a bookcase, and the folding door having a shock absorber that brakes sudden rotation between door plates when the folding door is closed. The present invention relates to a device and its shock absorber.

  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 above the runner 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 type of problem, it is effective to brake the sudden rotation of the door plates when the folding door is closed.

Conventionally, as a technique for braking sudden rotation when closing the door plate, the inner side surface portion of the door frame (door) to which the door plate (door) is attached via a hinge is brought into contact with the wooden face of the door plate (door). 2. Description of the Related Art An embedded damper that exerts a force that brakes the rotation of a door plate (door) is known. 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. Just before the door) is completely 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. ). (Patent Document 1)
Japanese Utility Model Publication No. 53-16661 (Japanese Utility Model Publication No. 57-11112)

  In the above-described conventional technology, the sudden rotation of the door plate (door) when the door plate (door) is closed is braked by bringing the wood face of the door plate (door) into contact with the piston of the damper device embedded in the door frame (框). Therefore, the braking force by the damper cannot be applied to the door plate (door) unless the door plate (door) is extremely closed, that is, just before the door plate (door) is completely closed. In order to advance the timing at which the braking force by the damper acts, it is necessary to increase the protruding length of the piston from the inner side surface of the door frame (框) and to increase the stroke. This means that a longer damper is required, and the mounting hole for embedding the damper accordingly needs to be larger.

  The problem to be solved by the present invention is to provide a folding door device having a shock absorber capable of appropriately setting the time and timing of the braking force when closing the folding door without lengthening the damper to be used, and the shock absorber. It is to provide.

  In order to solve the above-mentioned problems, a folding door device according to the present invention includes a folding door in which a pair of door plates are connected to each other so as to be horizontally rotatable (horizontal direction, that is, horizontally rotatable), and the door plates when the folding door is closed. And a shock absorber attached to the back surface of the folding door to brake sudden rotation, the shock absorber being connected to the other door plate of one door plate of the pair of door plates. A mounting member embedded and attached to a connecting end portion of the pair of door plates and one of the pair of door plates, and the two mounting members can be rotated with respect to each other. A hinge part that is connected, and a brake mechanism part provided on one of the attachment members to brake the rotation of the two attachment members, wherein the brake mechanism part is compressed in the horizontal direction and repels a damper. A contact member attached to the damper, The damper includes a damper main body fixed to the one mounting member, and an output shaft that protrudes from an end of the damper main body facing the other mounting member and moves forward and backward in the horizontal direction. The abutting member is a member that moves forward and backward together with the output shaft, and a tip part of which abuts against the other mounting member, and the abutting member moves with the mutual rotation of the both mounting members when the folding door is closed. The damper is configured to be compressed by being pressed by one mounting member and moving together with the output shaft.

  In the folding door device according to the present invention, the other mounting member receives a portion protruding from the one mounting member of the braking mechanism when the both mounting members are rotated and folded to the side where the folding door is opened. It is desirable that a recess is formed.

  In order to solve the above-mentioned problem, the shock absorber according to the present invention has a sudden change between the door plates at the time of closing the folding door in which the pair of door plates are connected to each other so as to be horizontally rotatable (horizontal direction, that is, horizontally rotatable). A shock absorber attached to the back surface of the folding door to brake the pivoting, wherein the mounting member is embedded in and attached to the connecting end of the door plate with the other door plate of the pair of door plates, Of the door plates, the mounting member embedded and attached to the connecting end of the other door plate with one of the door plates, the hinge portion that rotatably connects the two mounting members to each other, and the mutual rotation of the two mounting members. A braking mechanism portion provided on one mounting member for braking, and the braking mechanism portion includes a damper that is compressed in the horizontal direction and repels, and an abutting member that is attached to the damper. Fixed to the one mounting member. A damper main body, and an output shaft that protrudes from the end of the damper main body facing the other mounting member and moves forward and backward in the horizontal direction, and the contact member moves forward and backward together with the output shaft. And the tip part is a member which contacts the other attachment member, and the contact member is pressed by the one attachment member with the rotation of the two attachment members when the folding door is closed together with the output shaft. The damper is characterized in that the damper is compressed by moving.

  In the shock absorber according to the present invention, the other mounting member receives a portion protruding from the one mounting member of the braking mechanism when the two mounting members are rotated and folded to the side where the folding door is opened. It is desirable that a recess is formed.

  According to the present invention, it is possible to provide a folding door device including a shock absorber capable of appropriately setting the time and timing of the braking force when the folding door is closed without lengthening the damper to be used, and the shock absorber. it can.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a rear view of a folding door apparatus according to the present invention. 2, 3 and 4 are overall perspective views of the shock absorber according to the present invention. FIG. 5 is an exploded perspective view of the shock absorber according to the present invention. 6A to 6D are a front view, a left side view, a right side view, and a bottom view of the shock absorber according to the present invention, respectively. FIG. 7 is a cross-sectional view showing a cross section cut along the line AA in FIG. FIG. 8 is a perspective view showing the shock absorber according to the present invention and mounting holes formed in the door plate for mounting the shock absorber.

  The folding door device 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, 22 and 23, a rail 30 laid above the folding door 10, and the folding door 10. Runners 41 and 42 that are movably supported along the rail 30 in a state of being suspended from the rail 30, a rectangular door frame 50 to which the rail 30 is attached, and a door plate 11 when the folding door 10 is closed, 12 is provided with a shock absorber 60 equipped to brake a sudden rotation of each other. The hinges 21, 22, and 23 are known hinges that are widely used as hinges for folding doors. The hinges 21, 22, and 23 have 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 and the folding door 10 is moved. Forced to fully closed state. In the example of FIG. 1, the shock absorber 60 is provided at an intermediate position between the hinge 21 provided at the highest position among the three hinges 21, 22, and 23 and the upper edge of the folding door 10.

  The shock absorber 60 includes a first attachment member 61 that is attached to a connecting end portion of one door plate 11 and the other door plate 12 of the pair of door plates 11 and 12, and a connecting end of the other door plate 12 to the one door plate 11. A second attachment member 62 attached to the attachment portion, a hinge portion 63 that rotatably couples the attachment members 61, 62, and the second attachment member 62 to brake the mutual rotation of the attachment members 61, 62. And a braking mechanism portion 70.

  The first mounting member 61 includes a substantially circular member main body 61a that is fitted into a mounting hole 11a formed in one door plate 11, and a flange portion that protrudes in an up-down direction from the open end edge of the member main body 61a. 61b and 61c. Each flange portion 61b, 61c is formed with a screw hole 61d, and the member body 61a is fitted in the mounting hole 11a of the door plate 11 and is tightened through the screw hole 61d of each flange portion 61b, 61c. Thus, the first attachment member 61 is fixed to the door plate 11.

  The second mounting member 62 includes a substantially circular member main body 62a that is fitted into the mounting hole 12a formed in the other door plate 12, and a flange portion that protrudes in an up-down direction from the open end edge of the member main body 62a. 62b and 62c. Screw holes 62d are also formed at both upper and lower ends of the flange portions 62b and 62c, and the upper and lower screw holes 62e of the flange portions 62b and 62c with the member main body 62a fitted into the mounting holes 12a of the door plate 12. The second mounting member 62 is fixed to the door plate 12 by tightening through a screw.

  In this example, the flange portions 61b and 61c of the first mounting member 61 and the flange portions 62b and 62c of the second mounting member 62 are both folded when the shock absorber 60 is completely folded and the mounting members 61 and 62 are overlapped. The flange portions of the mounting members 61 and 62 are provided alternately so as not to overlap each other. Also, screw holes 61e and 62e are formed in the member main bodies 61a and 62a of the mounting members 61 and 62, respectively.

  The hinge portion 63 includes a pair of upper and lower bearing portions 61g and 61h formed on the connecting portion on the first mounting member 61 side, and a pair of upper and lower bearing portions 62g and 62h formed on the connecting portion on the second mounting member 62 side. By connecting the upper bearing portions 61g, 62g of the both mounting members 61, 62 to each other and the lower bearing portions 61h, 62h by the hinge shafts 63a, 63b, respectively, the both mounting members 61, 62 are rotatably connected to each other.

  The braking mechanism unit 70 includes a damper 71 that is compressed in the horizontal direction and repels, a storage unit 72 that stores and holds the damper 71, and a contact member 73 that is mounted on the damper 71.

  The damper 71 includes a cylindrical damper main body 71a fixedly held by the second mounting member 62, and a damper pin (output shaft) that protrudes from the end of the damper main body 71a facing the first mounting member 61 and moves forward and backward in the horizontal direction. ) 71b. In the body 71a of the damper 71, a coil spring (elastic body) (not shown) that generates a repulsive force against the force acting in the direction in which the damper 71 is compressed, that is, the direction in which the damper pin 71b is pushed into the body 71a. And an oil damper (buffer body) (not shown) for buffering a sudden movement of the damper pin 71b.

  The accommodating part 72 has an accommodating space surrounded by a cylindrical side wall extending in the horizontal direction. The side wall of the housing portion 72 on the side overlapping the first mounting member 61 bulges out from the member main body 62 a of the second mounting member 62 in a dome shape. An end portion 72a facing the first mounting member 61 side of the accommodating portion 72 is open, and the damper main body 71a is inserted into the accommodating space from the opening portion. The other end 72b of the accommodating portion 72 is closed by an end plate wall 72c that is thicker than the other portions. A screw hole 72d is formed in the end plate wall 72c so as to penetrate obliquely, and a set screw 72e is screwed into the screw hole 72d. The set screw 72e passes through the screw hole 72d, and its tip abuts against the end surface of the damper main body 71a. By adjusting the screwing amount of the set screw 72e into the housing portion 72, the damper 71 is held in the horizontal direction. The position can be finely adjusted. That is, the damper holding position adjusting mechanism is configured by the screw hole 72d formed in the end plate wall 72c of the housing portion 72 and the set screw 72e screwed to the screw hole 72d, and by increasing the screwing amount of the set screw 72e. The holding position of the damper 71 can be displaced closer to the first mounting member 61. Conversely, if the screwing amount of the set screw 72e is reduced, the holding position of the damper 71 is farther from the first mounting member 61. It can be displaced to a position.

  The first mounting member 61 has a portion projecting from the second mounting member 62 of the braking mechanism 70 when the both mounting members 61 and 62 are folded by rotating the folding door 10 toward the opening side, that is, the accommodating portion 72. A recess 61 i for receiving the contact member 73 is formed.

  The contact member 73 is a cap-like member that is attached to the damper 71 from the damper pin 71b side, and the body 73b is slidably inserted into the gap between the damper main body 71a and the accommodating portion 72. The shape and size of the tip 73a of the contact member 73 are selected so that the contact member 73 contacts the side edge 61f of the first mounting member 61 on the second mounting member 62 side at a predetermined timing when the folding door 10 is closed. Has been. A damper pin 71 b is in contact with the inner surface of the tip end portion of the contact member 73. Then, the damper 71 is compressed by the contact member 73 being pressed by the first mounting member 61 and moving together with the damper pin 71b with the mutual rotation of the mounting members 61 and 62 when the folding door 10 is closed. It has become.

  A stepped portion 73 c is formed on the outer periphery of the body portion 73 b of the contact member 73. On the other hand, a locking member mounting hole 72f is formed in the vicinity of the end 72a of the side wall of the accommodating portion 72 so as to penetrate the side wall, and the locking member 72g is mounted in the locking member mounting hole 72f. The distal end of the locking member 72g slightly protrudes from the inner surface of the side wall of the accommodating portion 72, and the protruding portion abuts on the stepped portion 73c of the abutting member 73, thereby preventing the abutting member 73 from coming off. . The locking member 72g is fitted into the locking member mounting hole 72f after the damper 71 and the contact member 73 are inserted into the accommodating portion 72.

  9 is a partial perspective view showing a series of states when the folding door device 1 is opened and closed, and FIG. 10 is a partial plan view of the same. 9 and 10, (a) is a state in which the folding door 10 is fully open. When the folding door 10 is closed from this state, the state of (d), that is, the folding door 10, is passed through the states of (b) and (c). When the folding angle reaches approximately 125 degrees, the catch mechanisms of the hinges 21, 22, and 23 are operated, and the folding door 10 is forcibly guided to the state (e), that is, the fully closed state by its action. At that time, the braking force by the damper device 71 starts to be effective at a predetermined timing after the operation of the catch mechanisms of the hinges 21, 22, and 23 until the folding door 10 is fully closed. 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.

  The shock absorber 60 configured as described above can appropriately set the time and timing of the braking force when the folding door 10 is closed without increasing the size of the damper 71 to be used. That is, the shock absorber 60 is equipped with a damper 71 that is compressed and repelled in the horizontal direction on the second mounting member 62 side, and the mounting members 61 and 62 when the contact member 73 mounted on the damper 71 closes the folding door 10. The damper 71 is compressed by being moved together with the damper pin 71b by being pressed by the side edge portion 61f of the first mounting member 61 along with the mutual rotation, and the repulsive force brakes sudden rotation when the folding door 10 is closed. Therefore, the shape and dimensions of the contact member 73, the positional relationship between the contact member 73 and the side edge portion 61f of the first mounting member 61, the holding position of the damper 71 in the horizontal direction, and the like. By selecting appropriately, the time and timing at which the braking force is applied can be appropriately set without making any changes to the damper 71.

  Further, since the holding position in the horizontal direction of the damper 71 can be finely adjusted by adjusting the screwing amount of the set screw 72e into the accommodating portion 72, the braking force works even after the shock absorber 60 is attached to the folding door 10. Time and timing can be fine-tuned.

  Moreover, if the shape and dimension of both attachment members 61 and 62 of the shock absorber 60 are made to coincide with the shape and dimension of both attachment members of the hinges 21 to 23, hole machining for attaching the hinges 21 to 23 to the folding door 10 is possible. Since the mounting holes 11a and 12a for the shock absorber 60 can be formed by exactly the same processing, man-hours and costs required for manufacturing the folding door device 1 can be reduced. On the other hand, in the above-mentioned prior art, the shape and size of the mounting hole for mounting the damper are different from the shape and size of the mounting hole for mounting the hinge. Therefore, a hole different from the mounting hole for the hinge for mounting the damper is used. It was necessary to carry out processing separately, which hindered the reduction of man-hours and costs.

  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 it is installed in the lower load type folding door device.

The rear view of the folding door apparatus provided with the buffer device of the present invention 1 is an overall perspective view of the shock absorber in FIG. 1 (a state in which both mounting members are completely opened). 1 is an overall perspective view of the shock absorber in FIG. 1 (critical state where braking force begins to work). 1 is an overall perspective view of the shock absorber in FIG. 1 (a state in which both mounting members are completely closed). 1 is an exploded perspective view of the shock absorber in FIG. 1A to 1D are a front view, a left side view, a right side view, and a bottom view of the shock absorber in FIG. 1, respectively. Sectional drawing which shows the cross section cut along the AA line in Fig.6 (a) The perspective view which showed the shock absorber of this invention, and the attachment hole formed in the doorplate to attach this The fragmentary perspective view which shows a series of states at the time of opening and closing of the folding door apparatus shown in FIG. Partial top view which shows a series of states at the time of opening and closing of the folding door apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding device 10 Folding door 11 Door plate 11a Mounting hole 12 Door plate 12a Mounting hole 21, 22, 23 Hinge 30 Rail 41, 42 Runner 50 Door frame 60 Shock absorber 61 1st mounting member (other mounting member)
61i Concave part 61f Side edge part 62 2nd attachment member (one attachment member)
63 Hinge part 70 Braking mechanism part 71 Damper 71a Damper main body 71b Damper pin (output shaft)
72 Housing part 73 Contact member

Claims (4)

A folding door formed by connecting a pair of door plates to each other so as to be horizontally rotatable;
A folding device provided with a shock absorber attached to the back of the folding door to brake the sudden rotation between the door plates when the folding door is closed,
The shock absorber is
An attachment member embedded and attached to the connecting end of the door plate with the other door plate of the pair of door plates;
An attachment member embedded and attached to the connecting end of one door plate of the other door plate among the pair of door plates;
A hinge portion that rotatably couples both mounting members to each other;
A braking mechanism provided on one of the mounting members to brake the rotation of both mounting members,
The braking mechanism is
A damper that is compressed and repelled horizontally,
A contact member attached to the damper,
The damper is
A damper main body provided fixed to the one mounting member;
An output shaft that protrudes from the end facing the other mounting member side of the damper main body and moves forward and backward in the horizontal direction, and
The contact member is
A member that moves forward and backward with the output shaft and whose tip is in contact with the other mounting member;
The folding door apparatus comprised so that a damper may be compressed when the said contact member is pressed by said one attachment member with the rotation of both attachment members at the time of closing of a folding door, and moves with the said output shaft. In the other mounting member,
2. The folding door device according to claim 1, wherein a concave portion is formed to receive a portion protruding from the one mounting member of the braking mechanism when the both mounting members are turned and folded to open the folding door. A shock absorber attached to the back surface of the folding door to brake the sudden rotation of the door plates when closing the folding door formed by connecting a pair of door plates so as to be horizontally rotatable,
An attachment member that is embedded and attached to the connecting end of the door plate with the other door plate of the pair of door plates;
An attachment member that is embedded and attached to a connecting end portion with one door plate of the other door plate among the pair of door plates;
A hinge portion that rotatably couples both mounting members to each other;
A braking mechanism provided on one of the mounting members to brake the rotation of both mounting members,
The braking mechanism is
A damper that is compressed and repelled horizontally,
A contact member attached to the damper,
The damper is
A damper main body provided fixed to the one mounting member;
An output shaft that protrudes from the end facing the other mounting member side of the damper body and moves forward and backward in the horizontal direction,
The contact member is
A member that moves forward and backward with the output shaft and whose tip is in contact with the other mounting member;
A shock absorber configured such that the damper is compressed when the abutting member is pressed by the one mounting member and moves together with the output shaft with the mutual rotation of the mounting members when the folding door is closed. In the other mounting member,
4. The shock absorber according to claim 3, wherein a recess is formed for receiving a portion protruding from the one mounting member of the braking mechanism when the two mounting members are turned and folded to open the folding door.