JP2016098583A - Folding door buffer and folding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding door buffer and a folding door device capable of shortening a projection length toward an inside of a storage and ensuring a longer stroke of a damper.SOLUTION: A folding door buffer S is used for a folding door 2, which opens and closes by mountain folding of two door panels 2a, 2b, and buffers a force generated when the folding door 2 is closed by a damper 50. The damper 50 buffers a force to push a rod 51 into a cylinder 52. A push-in direction of the rod 51 is made to be different from an opening and closing direction of the folding door 2. A link mechanism to transmit a force acting on the opening and closing direction to the push-in direction of the rod 51 is disposed. A folding door buffer S in a folding door device T is disposed at a clearance 7 between the folding door 2 and a guide rail 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a folding door shock absorber used for a folding door that is folded and opened in half, and a folding door device to which the folding door shock absorber is attached.

  2. Description of the Related Art Conventionally, a folding door device that opens and closes in half is used in a storage, a walk-in closet, or the like. Compared with other doors (for example, sliding doors and hinged doors), this folding door has a point that the entire storage opening of the storage can be opened, and dead space required to open compared with that of a single door This is advantageous in that it can be reduced.

  In addition, the folding door may be provided with a folding door shock absorber equipped with a shock absorbing damper in order to reduce the impact during the closing operation. The damper includes a cylinder and a rod protruding from the cylinder in a buffering direction (stroke direction), and shock is buffered and mitigated by the stroke of the rod.

  For example, in the shock absorber for folding doors described in Patent Documents 1 and 2, the stroke direction of the rod is installed in the opening / closing direction of the folding door, and the damper absorbs the impact as the folding door moves in the closing direction. . Moreover, in the technique of patent document 1, the technique which adjusts the impact-absorbing force of a damper using a several damper is disclosed.

JP 2011-42978 A JP 2011-127314 A

  The folding device for the folding door is attached to the back side of the folding door, and is attached so as to protrude toward the inside (storage space side) of the storage. The protruding dimension of the shock absorber is preferably as small as possible in order to secure as much storage space as possible such as a storage. On the other hand, the stroke of the damper described above is preferably ensured as long as possible in order to close (buffer) the folding door more slowly.

  Therefore, when the stroke of the damper is increased, the protruding length toward the storage space side is increased. On the contrary, if the protrusion length of the shock absorber is kept small, the damper stroke becomes short and the shock absorbing function cannot be fully exhibited. In the technique of Patent Document 1, a plurality of dampers are provided to compensate for this buffering function, but the number of parts increases and the cost increases.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a folding door cushioning device capable of reducing the length of inward protrusion of a storage and the like and ensuring a long stroke of the damper. And providing a folding door device to which the cushioning device for folding doors is attached.

  In order to solve the above-described problems, a folding door shock absorber according to the present invention is used in a folding door that is opened and closed by folding two door plates, and the force when the folding door is closed is buffered by a damper. The damper cushions the force with which the rod is pushed into the cylinder, and makes the pushing direction of the rod different from the opening / closing direction of the folding door, so that the force acting in the opening / closing direction is different from that of the rod. A link mechanism for transmitting in the pushing direction is provided.

  Moreover, you may make it the pushing direction of the said rod become substantially parallel with the back surface of the said folding door.

  Furthermore, the folding door device according to the present invention extends over the left and right sides of the folding door in which two door plates are folded and opened in a mountain fold, and the opening where the folding door is installed, and the folding door is moved in the left-right direction. A guide rail for guiding, and a folding door cushioning device that cushions the force when the folding door is closed by a damper, the damper cushioning the force with which the rod is pushed into the cylinder, The push-in direction of the rod is arranged so as to be substantially parallel to the back surface of the folding door, and the cushioning device for the folding door is arranged in a gap generated between the folding door and the guide rail.

  In the folding door shock absorber according to the present invention, there is provided a link mechanism that transmits the force acting in the opening / closing direction in the opening / closing direction by changing the pushing direction (stroke direction) of the rod of the damper and the opening / closing direction of the folding door. Thus, even if the stroke of the damper is secured long, the folding door cushioning device does not protrude greatly toward the storage space. In particular, by making the stroke direction of the damper substantially parallel to the back surface of the folding door, it is possible to minimize the length of the folding door shock absorber projecting toward the storage space.

  On the other hand, in the folding door device according to the present invention, the push-in direction of the rod is arranged so as to be substantially parallel to the back surface of the folding door, and the cushioning device for folding door is arranged in the gap generated between the folding door and the guide rail. Therefore, the folding door cushioning device does not protrude toward the storage space from within the gap necessary for the structure. As a result, it is possible to secure a large storage space as compared with the conventional case that protrudes.

It is the whole folding door apparatus with which the buffer device for folding doors concerning embodiment of this invention was attached, Comprising: It is the figure seen from the storage inside side. It is the A section enlarged view of FIG. It is XX sectional drawing of FIG. It is a figure which shows the state which closed the folding door from FIG. It is a perspective view of the buffer device S for folding doors, (A) is the state when the folding door 2 is closed, (B) is the state where the buffering function is operating, (C) is the folding door 2 opened. FIG. It is a disassembled perspective view of the buffer device for folding doors. It is a figure explaining operation | movement of the folding device for folding doors, Comprising: (A) is a state in which the folding door is closed, (B) is a state in which the folding door is opened within a predetermined angle, (C) is a state in which the folding door is predetermined. It is a top view which shows the state opened more than the angle. (A)-(C) is a sectional view corresponding to Drawing 7 (A)-(C). It is a modification of this invention, Comprising: It is the whole perspective view of the folding door apparatus with which the buffer device for folding doors was attached. It is the B section enlarged view of FIG.

  Hereinafter, the buffer device S for folding doors and the folding door device T which concern on embodiment of this invention are demonstrated in detail using drawing. FIG. 1 is an overall perspective view of a folding door device T to which a shock absorber S for folding doors according to an embodiment of the present invention is attached, and is a view seen from the storage side of the folding door device T (inside the folding door device T). is there. 2 is an enlarged view of a portion A in FIG. 1, FIG. 3 is a sectional view taken along line XX in FIG. 1, and FIG. 4 is a view showing a state in which the folding door is closed from the state in FIG.

  In addition, in the directions used in the following description, the up, down, left, and right directions are directions when FIG. 1 is viewed from the front. Further, the front side (outside) refers to the back side of the sheet of FIG. 1, and the back side (storage side) refers to the front side of the sheet of FIG.

  As shown in FIG. 1, the folding door device T includes a main body 1 having an opening 1d on the front side thereof, and folding doors 2 (2a, 2b) that cover the opening 1d. The main body 1 includes a left side wall 1a and a right side wall 1b located on both sides of the opening 1d, a ceiling 1c located on the upper side of the opening 1d, and a bottom (not shown).

  As shown in FIGS. 1, 3, and 4, the folding door 2 includes a door plate 2a located on the left side and a door plate 2b located on the right side. These door plates 2a and 2b are connected to the left and right by two center hinges 3 so that the folding door 2 can be folded in a state of being mountain-folded toward the front side.

Moreover, the folding door 2 is assembled | attached to the main-body part 1 side by the upper and lower two hinges 4 provided in the right side part of the main-body part 1, and the suspending device 5 which suspends the doorplate 2a.
One of the hinges 4 is attached to the right side wall 1b of the main body 1 and the other is attached to the right side of the door plate 2b. The door plate 2b rotates about the hinge 4 toward the front side. ing.
The upper part of the suspension device 5 is attached so as to be slidable in the left-right direction along the guide rail 6. Moreover, the lower part of the suspending device 5 is attached to the upper left part of the door plate 2a, and the door plate 2a rotates in the horizontal direction around the suspending device 5.

  The guide rail 6 has a substantially U-shaped cross section and is attached to the ceiling 1c so that the opening faces downward. The guide rail 6 is linearly continuous from the left end to the right end of the opening 1d, and the suspension device 5 freely moves between the guide rail 6 and the right end. Thereby, the folding door 2 is closed in a state in which the hanging device 5 is located at the left end, and in a state in which the hanging device 5 is moved to the right end, the hinge 4 and the center hinge 3 act to open. In this open state, the two door plates 2 a and 2 b are folded and brought closer to the right side wall 1 b side of the main body 1.

  Further, the above-described center hinge 3 has a direction in which the folding door 2 is closed (arrow P in FIG. 3) in a state in which the folding door 2 is closed to some extent (a state where the angle R shown in FIG. 3 is equal to or smaller than a predetermined angle). A closing means (not shown) for urging in the direction shown is provided. Since this closing means is known, its detailed description is omitted. The closing means can be provided on the hinge 4 in addition to the center hinge 3 or on both the center hinge 3 and the hinge 4.

  When the folding door 2 is completely closed (the state shown in FIG. 4), a gap 7 is generated in the front-rear direction between the front side surface of the guide rail 6 and the back side surface of the folding door 2 described above. This gap 7 is. When opening and closing the folding door 2, it becomes necessary due to the positional relationship and structure with the folding door 2, the suspension device 5 and the guide rail 6. The folding door shock absorber S of the present invention is attached to the upper right part on the back side of the door plate 2 b and is disposed so as to be accommodated in the gap 7.

  FIGS. 5A to 5C are perspective views of the folding door buffer device S, where FIG. 5A is a state when the folding door 2 is closed, and FIG. The state which exists, (C) has shown the state when the folding door 2 is opened. FIG. 6 is an exploded perspective view of the folding door shock absorber S. FIG.

  The folding door shock absorber S biases the base portion 10 attached to the door plate 2b, the first link portion 20 and the second link portion 30 that constitute a link mechanism with the base portion 10, and the link portions 20 and 30. The torsion spring 40 and the damper 50 for buffering the movement of the link portions 20 and 30 are configured.

  The base part 10 is formed long in the left-right direction. A flat mounting surface 10a is formed on the door plate side of the base portion 10, and the mounting surface 10a is mounted so as to be in contact with the back surface of the door plate 2b. In addition, mounting holes 11 and 12 through which screws or the like are inserted are provided at both left and right ends of the base portion 10, respectively. The base portion 10 is attached to the door plate 2b with this screw or the like.

  In addition, a damper housing portion 17 is formed at the center of the base portion 10. This damper accommodating part 17 is formed in the shape dented in the doorplate side by the wall parts 13 and 13 provided in the both sides of the up-down direction, and the receiving part 16 provided in the right side. The concave shape is formed so as to substantially coincide with a cylindrical shape of a damper main body 52, which will be described later in detail, and the damper 50 is attached without rattling so as to be fitted into the damper accommodating portion 17.

  Further, the above-described two wall portions 13 and 13 are formed with through-holes 14 penetrating in the vertical direction and extending in the left-right direction. Similarly, the through-hole 15 is formed in the two wall parts 13 and 13 in the aspect which is located in the right side rather than the penetration long hole 14, and penetrates in an up-down direction, respectively.

  The first link portion 20 has a substantially U-shaped cross section, and is arranged so that the opening side faces the base portion 10 side. The upper surface portion 20a constituting the upper side of the first link portion 20 and the lower surface portion 20b constituting the lower side are extended in the left-right direction, and attachment holes 21 and 22 penetrating in the vertical direction are respectively formed in the extended portions. Each is formed. The right attachment hole 21 is attached to the base portion 10 by an attachment pin 73 so as to align with the through hole 15. As a result, the first link portion 20 can freely rotate with respect to the base portion 10 around the mounting pin 73.

  As shown in FIG. 6, the torsion spring 40 is inserted into the mounting pin 73 and assembled. The torsion spring 40 biases the first link portion 20 toward the guide rail with respect to the base portion 10.

  Further, notches 24 and 24 are formed in the upper surface portion 20a and the lower surface portion 20b from the door plate side to the guide rail side, respectively. Although the details of the notches 24 and 24 will be described later, when the first link part 20 is pushed into the base part 10 side, it avoids interference with the mounting pin 72, the upper surface part 20a and the lower surface part 20b. belongs to. The cutout portions 24 and 24 are cut out by the moving length of the mounting pin 72 in the left-right direction when the first link portion 20 is pushed into the base portion 10 side.

  As shown in FIG. 6, the second link portion 30 has a substantially U-shaped cross section, as in the first link portion 20, and is attached to the extended portion in the longitudinal direction in the vertical direction. Holes 31 and 32 are respectively formed.

  The attachment hole 31 is attached to the base portion 10 by the attachment pin 72 so as to align with the through long hole 14. As a result, the second link portion 30 can freely rotate with respect to the base portion 10 around the mounting pin 72. Further, the attachment pin 72 can be freely slid in the left-right direction along the attachment elongated hole 14.

  Further, a square receiving member 60 is attached to the attachment pin 72 as shown in FIG. The receiving member 60 is formed with an insertion hole 61 through which the attachment pin 72 is inserted, and moves to the left and right together with the attachment pin 72.

  The attachment hole 32 is attached by the attachment pin 71 in alignment with the attachment hole 22 of the first link portion 20. Thereby, the 1st link part 20 and the 2nd link part 30 can rotate freely centering on the attachment pin 71 relatively. Thereby, the 1st link part 20 and the 2nd link part 30 come to operate | move as a link mechanism.

  In addition, a contact member 23 that is in contact with the front surface of the guide rail 6 while being attached to the door plate 2 b is attached to the second link portion 30. The contact member 23 is formed of a low friction resin material such as ultra high molecular weight polyethylene or nylon containing molybdenum.

  The contact member 23 is attached so as not to be structurally rotated with respect to the second link portion 30, and is rotated with respect to the first link portion 20. As shown in FIGS. 5 and 6, the abutting member 23 extends from the mounting pin 71 toward the guide rail 6 side substantially in parallel with the longitudinal direction of the second link member 30, and has a tip on the guide rail 6 side. The portion is formed with a substantially arc-shaped curved surface portion 23a and a flat surface portion 23b. The curved surface portion 23a and the flat surface portion 23b are portions that slide while contacting the back surface of the door plate 2b when the folding door shock absorber S operates.

  As shown in FIG. 6, the damper 50 includes a cylindrical cylinder 52 that is long in the left-right direction, and a rod 51 that protrudes further leftward from the left end of the cylinder 52. The damper 50 is disposed substantially parallel to the mounting surface 10a of the base portion 10, and the rod 51 moves in the left-right direction substantially parallel to the back surface of the door plate 2b.

  The rod 51 is configured such that its movement in the right direction (movement in the direction of being pushed in) is buffered by the hydraulic oil in the cylinder 52. The cylinder 52 of the damper 50 is attached in such a manner that it is fixed to the damper accommodating portion 17 of the base portion 10. The tip of the rod 51 is in contact with the receiving member 60 described above. As a result, the damper 50 cushions its movement as the mounting pin 72 moves in the right direction.

  Next, the operation and operation of the folding door shock absorber S according to the embodiment of the present invention will be described with reference to FIGS. 7A and 7B are diagrams for explaining the operation of the folding door shock absorber S. FIG. 7A is a state in which the folding door 2 is closed, FIG. 7B is a state in which the folding door 2 is opened within a predetermined angle R, and FIG. ) Is a plan view showing a state in which the folding door 2 is opened at a predetermined angle R or more. FIGS. 8A to 8C are cross-sectional views corresponding to FIGS. 7A to 7C. 7A to 7C and FIGS. 8A to 8C also match the operation states of FIGS. 5A to 5C, respectively.

  As shown in FIG. 4, the folding door shock absorber S is compactly accommodated in a gap 7 between the back surface of the door plate 2 b and the surface of the guide rail 6 when the folding door 2 is closed. In this state, as shown in FIGS. 5 (A), 7 (A), and 8 (A), the mounting pin 72 is located on the right side of the through-hole 14 and extends in the depth direction of the folding door shock absorber S. The size (thickness) is small and can be accommodated in the gap 7 described above.

  Further, the back surface of the door plate 2 b is in contact with the flat portion 23 b of the contact member 23. The sliding door 2 is closed by an urging force (a force larger than the urging force of the torsion spring 40) of the closing means (not shown) of the center hinge 3. Further, as shown in FIG. 8A, the rod 51 of the damper 50 is pushed into the cylinder 52 when the receiving member 60 moves to the right side together with the mounting pin 72.

  When the folding door 2 is opened at a predetermined angle R or less from the closed state described above, the folding door 2 is attached by the urging force of the torsion spring 40 as shown in FIGS. 5 (B), 7 (B) and 8 (B). The first link portion 20 rotates clockwise around the pin 73 toward the back side. Thereby, the 2nd link part 30 also moves so that it may stand in the depth direction. The attachment pin 72 moves to the left side as the second link portion 30 moves. At this time, the contact portion of the back surface of the door plate 2b moves while sliding from the flat surface portion 23b of the contact member 23 to the curved surface portion 23a.

  In the state where the folding door 2 is opened at a predetermined angle R or more, the door plate 2b and the contact member 23 do not contact each other. Accordingly, the first link is moved until the mounting pin 72 moves to the left end of the through-hole 14 by the urging force of the torsion spring 40 as shown in FIGS. 5 (C), 7 (C) and 8 (C). The part 20 further rotates clockwise.

  On the other hand, when the folding door 2 is closed, the operation is reverse to that described above. That is, when the folding door 2 is closed to a predetermined angle R or less, the folding door 2 is automatically moved in the closing direction by the closing means, and the back surface of the door plate 2 b comes into contact with the curved surface portion 23 a of the contact member 23. The contact member 23 is pushed to the front side by the urging of the folding door 2 in the closing direction, and the first link portion 20 rotates counterclockwise against the urging force of the torsion spring 40. Then, the folding door cushioning device S is in a state of being folded between the gaps 7 (the state shown in FIGS. 5A, 7A, and 8A).

  At this time, the rod 51 of the damper 50 is pushed into the cylinder 52 by the receiving member 60. Thereby, the force at the time of closing of the folding door 2 is buffered, and the folding door 2 comes to close slowly.

  According to the folding door shock absorber S according to the embodiment of the present invention, the pushing direction (stroke direction) of the rod 51 of the damper 50 is different from the opening / closing direction of the folding door 2, and the force acting in the opening / closing direction is changed to the rod 51. Since the link mechanism for transmitting in the push-in direction is provided, even if the stroke of the damper 50 is ensured to be long, the folding door shock absorber S does not protrude significantly toward the storage space.

  In particular, by arranging the stroke direction of the damper 50 substantially parallel to the back surface of the folding door 2, the length of the folding door shock absorber S protruding toward the storage space can be minimized.

  On the other hand, in the folding door device T according to the present invention, the pushing direction of the rod 51 is arranged so as to be substantially parallel to the back surface of the folding door 2, and the folding door buffer device S is disposed between the folding door 2 and the guide rail 6. Since it arrange | positions in the gap 7 which arises, the buffer device S for folding doors does not protrude from the inside of the gap 7 required on a structure to the storage space side. As a result, it is possible to secure a large storage space as compared with the conventional case that protrudes toward the storage space.

  As described above, the folding door shock absorber S and the folding door device T according to the embodiment of the present invention have been described. However, the present invention is not limited to the above-described embodiment, and various kinds of devices can be used based on the technical idea of the present invention. Variations and changes are possible.

  For example, the folding door shock absorber S in the present embodiment is housed (arranged) in the gap between the upper right end door plate 2b and the guide rail 6 as shown in FIG. You may arrange | position in the clearance gap with the guide rail 6. FIG. FIG. 9 is a diagram corresponding to FIG. 1, and is a perspective view showing a state in which the folding door shock absorber S is arranged at the upper left end. FIG. 10 is an enlarged view of a portion B in FIG.

  Since the conventional folding door cushioning device is mounted so as to protrude from the back surface of the folding door to the storage space side, it can only be arranged at a position that does not interfere with the suspension device 5, that is, at the upper right end. However, since the shock absorber S for folding doors of the present invention can be disposed in the gap 7 between the back surfaces of the door plates 2a and 2b and the surface of the guide rail 6, as shown in FIG. The shock absorber S does not interfere in the depth direction. Therefore, the folding door shock absorber S can be attached to the door plate 2a at the upper left end with the left and right sides of the present embodiment reversed. Thereby, in the state which opened the folding door 2 (state which made the door plates 2a and 2b folded in a mountain), the buffer device S for folding doors can be made difficult to see from the person who opened the folding door 2. In addition, it can arrange | position also in a center part, and the freedom degree of the arrangement | positioning increases.

  Moreover, in the folding door buffer S in this Embodiment, although comprised using the contact member 23 which contacts the back surface of the doorplate 2b, a roller etc. can also be used instead of the contact member 23. FIG. Thereby, sliding resistance with the back surface of the doorplate 2b can be replaced with rotation of a roller, and can be reduced.

  Further, in the present embodiment, the urging force is applied using the torsion spring 40 in order to operate the link mechanism, but the present invention is not limited to this. For example, a biasing force may be applied to the first link portion 20 using a compression (tensile) coil spring, a leaf spring, or the like.

DESCRIPTION OF SYMBOLS 1 Main-body part 1a Left side wall part 1b Right side wall part 1c Ceiling part 1d Opening part 2 Folding door 2a, 2b Door board 3 Center hinge 4 Hinge 5 Hanging apparatus 6 Guide rail 7 Crevice 10 Base part 10a Mounting surface 11, 12 Mounting hole 13 Wall portion 14 Through long hole 15 Through hole 16 Receiving portion 17 Damper accommodating portion 20 First link portion 20a Upper surface portion 20b Lower surface portion 21, 22 Mounting hole 23 Abutting member 23a Curved portion 23b Planar portion 24 Notch portion 30 Second link Portion 40 Torsion spring 50 Damper 51 Rod 52 Cylinder 60 Receiving member 61 Insertion hole 71, 72, 73 Mounting pin S Folding door shock absorber T Folding door device

Claims (3)

A folding door shock absorber that is used for folding doors in which two door plates are folded and opened in a mountain fold, and the force when the folding door closes is buffered by a damper,
The damper cushions the force with which the rod is pushed into the cylinder, and makes the pushing direction of the rod different from the opening / closing direction of the folding door, and transmits the force acting in the opening / closing direction to the pushing direction of the rod. A folding door shock absorber provided with a link mechanism.   2. The folding door shock absorber according to claim 1, wherein a pushing direction of the rod is substantially parallel to a back surface of the folding door. 3. A folding door in which two door plates are folded and opened in a mountain fold, a guide rail extending in the left and right directions of the opening where the folding door is installed, and guiding the folding door in the left-right direction; and the folding door A folding door device comprising a folding door cushioning device that cushions the force when closing with a damper,
The damper cushions the force with which the rod is pushed into the cylinder, and the rod pushing direction is arranged so as to be substantially parallel to the back surface of the folding door, and the folding door cushioning device is connected to the folding door. The folding door device is arranged in a gap generated between the guide rail and the guide rail.

Images