JP6084853B2 - Shock absorber and folding door including the same - Google Patents

Description

  The present invention relates to a shock absorber for a folding door used in a general house, etc., and more particularly to a shock absorber that prevents the folding door from abruptly closing and generating a large impact sound or vibration, and a folding door including the shock absorber.

  The folding door is for opening and closing an opening for accessing a closet or a container in a general house. Such a folding door is provided with at least two door plates, and the adjacent door plates are connected to each other by a hinge or the like so as to be rotatable in the horizontal direction, and the upper end portion or the lower end portion of the door plate is rotatably held. Thus, the opening can be opened and closed while the door plates rotate relative to each other.

  As described above, the folding door has a structure in which the doors are opened and closed while the doors are rotated, so that when the doors are closed, the doors come into contact with the upper, lower, left and right door frames, and the doors of the doors come into contact with each other. For this reason, when the folding door is closed vigorously, a large impact sound or vibration is generated. This impact and vibration not only cause discomfort to the user, but also cause damage and deterioration of the door plate by repeatedly applying the impact and vibration to the door plate and the door frame. There is also a problem that the door plate once closed to the end rebounds by an impact, and the folding door is semi-closed.

  In order to avoid such a problem, as shown in Patent Document 1, a shock absorber including a damper is attached to the upper back corner of the door plate, and the contact member attached to the tip of the damper is closed when the folding door is closed. A technology has been developed to reduce the generation of impact sounds and vibrations by abutting against the surface of the door plate to buffer the momentum of the door plate with the damper.

  Patent Document 2 discloses a technique for adjusting the elastic force of a damper by providing a pressure adjusting screw that can adjust the position of the damper back and forth.

JP 2008-248598 A Japanese Patent No. 4647035

  However, as in the technique described in the shock absorber of Patent Document 2, the technique for adjusting the elastic force of the damper by providing a pressure adjusting screw that can adjust the position of the damper back and forth is not easy to adjust. If it is a shock absorber provided with a book damper, adjustment was further difficult.

  The present invention has been developed in view of such problems of the prior art. Therefore, a main problem of the present invention is to provide a shock absorber that can easily adjust the elastic force of a damper and a folding door using the same even when a plurality of dampers are provided.

The invention described in claim 1
A base attached to the surface of the door plate constituting the folding door;
A damper that urges the subject of abutment with a resilient force in accordance with the operation of closing the folding door,
The base is
A main body attached to the door plate;
A projecting piece projecting from the main body,
A plurality of projecting piece insertion holes into which the projecting pieces are inserted and removed, and a damper position adjusting member capable of changing the position of the damper by changing the projecting piece insertion holes into which the projecting pieces are inserted. and,
In the damper position adjusting member, a shock absorber is provided with a leg projecting at an edge adjacent to a surface of the surface of the damper position adjusting member on a side opposite to the surface with which the damper contacts. .

  According to the shock absorber described in claim 1, the position of the damper can be easily determined by selecting which of the projecting piece insertion holes in the damper position adjusting member the projecting piece projecting from the main body portion is to be inserted. You can adjust the resilience by changing.

  The invention described in claim 2 is a folding door including the shock absorber according to claim 1.

  According to the present invention, even when a plurality of dampers are provided, it is possible to provide a shock absorber that can easily adjust the elastic force of the damper and a folding door using the same.

It is a disassembled perspective view which shows the buffering device with which this invention was applied. It is (a) top view of a base, (b) front view, and (c) right side view. It is a perspective view which shows the bottom face side of a damper position adjustment member. It is (a) top view, (b) rear view, and (c) right side view of the moving body. It is a figure which shows the contact surface and closing contact surface of a moving body. It is a perspective view which shows the folding door containing the buffer device with which this invention was applied. It is a top view which shows the folding door containing the buffer device with which this invention was applied. It is a top view which shows the buffering device in the state contact | abutted to the door frame. It is a perspective view which shows the other Example of the control member in a base.

  Hereinafter, a shock absorber 10 to which the present invention is applied will be described with reference to the drawings. In the following description, regarding each symbol, when each part is indicated by a higher concept, it is indicated by only an Arabic numeral without an alphabetic branch number, and each part needs to be distinguished (ie, indicated by a lower concept) ) Is distinguished by adding an alphabetic uppercase branch number to an Arabic numeral.

  As shown in FIG. 1, the shock absorber 10 generally includes a base 14, a moving body 16, and a damper 18.

  The base 14 is a member attached to the surface of the door plate 20 constituting the folding door 12, and as shown in FIGS. 1 and 2, a substantially rectangular main body 24 and an edge of the main body 24 (see FIG. ) And a pair of projecting pieces 28 formed on the edge opposite to the regulating member 26 (upper edge in FIG. 2A), and a pair Bolt hole 30 and damper position adjusting member 19. In the present embodiment, the plate 24, the regulating member 26, and the protruding piece 28 are integrally formed, and a damper position adjusting member 19 is prepared as a separate body.

  The main body 24 is, for example, a metal plate-like material (= plate), and the surface thereof is coated as necessary. In the following description, the main body 24 is described as a “plate 24”. Of course, the shape of the main body 24 is not limited to the plate-like material, and a block-shaped main body 24 or a complicated-shaped main body 24 can be used. Moreover, as long as it can endure the stress from the contact object 102 (the surface of the door frame 100 in this embodiment) applied to the plate 24 through the moving body 16, it is not limited to metal but other materials such as resin. Materials can also be used.

  The restricting member 26 is a pair of hook-shaped portions formed so as to have inverted “L” shapes whose cross sections face each other by bending the edge of the plate 24. That is, the regulating member 26 is formed at the end of the base 14 in the direction in which the moving body 16 is urged by the damper 18. By forming the restricting member 26 at the end in the direction in which the moving body 16 is urged, it is advantageous in that the resistance to stress applied to the moving body 16 in the direction away from the base 14 can be increased. . The “end portion” here is not literally limited to the “end” of the plate 24, and includes a concept including a case where the regulating member 26 is formed slightly closer to the center from the end edge of the plate 24. is there.

  The restricting member 26 engages with a guide portion 34 (described later) of the moving body 16, thereby restricting the moving direction of the moving body 16 to the linear direction SD and moving the moving body 16 away from the base 14. It has a role to regulate.

  The projecting piece 28 is formed by cutting and raising an end edge portion of the plate 24 opposite to the regulating member 26 (upper end edge in FIG. 2A). In this embodiment, the center line of the plate 24 is formed. One projecting piece (projecting piece 28a) is formed on L, and two projecting pieces (projecting pieces 28b and 28c) are formed on both sides of the center line L. Of course, the number of protrusions 28 is not limited to that of the present embodiment, and may be one, two, or four or more. Further, the shape of the projecting piece 28 is not limited to that of the present embodiment, and a columnar shape or a columnar shape can be used.

  Further, in the present embodiment, convex portions 60 are formed on the surfaces of the projecting pieces 28, respectively. More specifically, the protrusions 60a formed on the protrusions 28a are formed in a direction facing the protrusions 60b and 60c formed on the protrusions 28b and 28c. When inserted into a projecting piece insertion hole 46 (described later) formed in the member 19, each projection 60 holds the damper position adjusting member 19. The tip of each protrusion 28 is rounded to prevent injury, and the height of each protrusion 28 is set slightly higher than the height of the restricting member 26.

  The bolt holes 30 are drill holes formed one by one at both end portions (left and right end portions in the drawing) of the plate 24. Although the position, number, or diameter of the bolt holes 30 is not limited to the present embodiment, it is more preferable to form the bolt holes 30 as close to the restricting member 26 as possible with respect to the stress applied to the plate 24. It is preferable in terms of advantages.

  As shown in FIG. 3, the damper position adjusting member 19 is a block-like member in which a plurality of projecting piece insertion holes 46 into which the three projecting pieces 28 formed in the base 14 are inserted are formed. In the present embodiment, the resin damper position adjusting member 19 is used, but the material is not particularly limited. The shape of the damper position adjusting member 19 is not limited to the block shape, and a cylindrical shape or a complicated shape can be used.

  The plurality of protruding piece insertion holes 46 will be described. The protruding piece insertion holes 46 are formed in three rows at the same intervals as the protruding pieces 28 so that the three protruding pieces 28 can be inserted simultaneously. Five protruding piece insertion holes 46 are formed in the same direction. In other words, 3 × 5 = 15 protruding piece insertion holes 46 are formed in one damper position adjusting member 19. By forming the protruding piece insertion hole 46 in this way, the position where the protruding piece 28 is inserted can be changed in five stages. Of course, the number of projecting piece insertion holes 46 is not limited to this, and is determined according to the number of projecting pieces 28 formed in the base 14 and the required accuracy of position adjustment of the damper 18. .

  Further, the edge of the surface of the damper position adjusting member 19 where the protruding piece insertion hole 46 is formed (more precisely, the edge adjacent to the surface opposite to the surface with which the damper 18 abuts) A portion 48 is projected. It is preferable that the height t of the leg portion 48 is substantially the same as the thickness of the plate 24.

  When the projecting piece 28 is inserted into the projecting piece insertion hole 46 located farthest from the leg portion 48, the damper position adjusting member 19 may protrude from the plate 24 of the base 14. However, by configuring the leg portion 48 as described above, when the damper position adjusting member 19 receives a resilient force from the damper 18, the damper position adjusting member 19 is prevented from undesirably wobbling. Can do.

  As shown in FIG. 4, the movable body 16 includes a damper housing groove in which a contact surface 32, a guide portion 34, and a damper 18 are housed in a main body portion 31 formed of a strong resin such as polyacetal. 36 is integrally formed.

  The contact surface 32 is a surface that contacts the contact object 102 such as the surface of the door frame 100 when the shock absorber 10 is attached to the door plate 20 and used. As shown in the drawing, it is preferable that the abutting surface 32 has a circular cross section.

  In addition to forming the cross section of the abutting surface 32 in an arc shape, as shown in FIG. 5, the abutting surface 32 is continuous with the arc-shaped abutting surface 32, and when the folding door 12 is fully closed, A flat closing contact surface 38 that contacts the surface may be formed.

  By forming such a closed contact surface 38, when the folding door 12 is closed, the contact surface 32 having an arc-shaped cross section becomes the contact object 102 until immediately before the folding door 12 is completely closed. The damper 18 is gradually contracted (FIG. 5A). When the folding door 12 is completely closed, the planar closing contact surface 38 contacts the contact object 102 (FIG. 5B). Then, the flat closing contact surface 38 comes into contact with the contact object 102 by a “surface” and presses and urges the contact object 102 with the “surface” by the elastic force of the damper 18. 12 is preferable in that the closed state of the folding door 12 can be stably maintained without undesirably opening.

  Returning to FIG. 4, the guide portions 34 are formed so as to protrude from both side surfaces of the main body portion 31 and extend along the linear direction SD (see FIG. 1) in which the movable body 16 moves relative to the base 14. . When the guide portion 34 is engaged with a regulating member 26 formed on the base 14, the moving direction of the moving body 16 with respect to the base 14 is restricted to the linear direction SD, and the moving body 16 is separated from the base 14. To move to is regulated.

  The damper accommodating groove 36 is a groove for accommodating the damper 18. In this embodiment, three damper accommodating grooves 36 are formed to accommodate the three dampers 18. The number of dampers 18 used in the shock absorber 10 is determined in accordance with the required elastic force determined by the size of the door plate 20 constituting the folding door 12, and the number of damper receiving grooves 36 is determined based on this. Needless to say.

  One end of the damper 18 is in contact with the base 14 (in this embodiment, the side surface of the damper position adjusting member 19), and the other end is in contact with the moving body 16 (in this embodiment, in the damper receiving groove 36). And a member that is compressed by the stress from the contact object 102 against the moving body 16 and urges the moving body 16 with a resilient force. In this embodiment, as shown in FIG. 1, generally, a cylinder portion 40, a piston shaft 42 that enters and exits from the cylinder portion 40, and a tip member that is provided as needed and attached to the tip of the piston shaft 42 are provided. However, other types of dampers may be used as long as they can energize the moving body 16.

  In the present embodiment, as described above, the damper housing groove 36 for housing a predetermined number of dampers 18 is formed in the main body 31 of the movable body 16, and the damper 18 is attached to the movable body 16 side. Of course, the damper 18 may be housed and fixed on the base 14 side.

  Next, the folding door 12 provided with the buffer device 10 of a present Example is demonstrated using FIG.6, FIG.7 and FIG.8. The folding door 12 of this embodiment includes a pair of door plates 20 and a hinge 22.

  The folding door 12 is used to open and close an opening for accessing a closet or a container in a general house, etc., and adjacent door plates 20 are connected to each other by a hinge 22 so as to be rotatable in the horizontal direction, and both sides of the opening. By holding the upper end portion or the lower end portion of the door plate 20 so as to be rotatable with respect to the door frame 100 attached to the edge or upper edge, the door plate 20 can open and close while opening each other. It has become.

  In the present embodiment, the shock absorber 10 is attached to the edge of the door frame 100 on the back surface of the door plate 20 (the surface that becomes the inside of a closet or the like when the folding door 12 is closed). In addition, the attachment position of the shock absorber 10 in the vertical direction of the door plate 20 is not particularly limited, but it is preferable that the shock absorber 10 is attached to a substantially central portion in the height direction of the door plate 20. Assuming that the shock absorber 10 is attached to the upper end portion of the door plate 20, when the folding door 12 is closed vigorously, the shock absorber 10 is located at the upper end portion of the door plate 20, so that the momentum is stopped. However, on the other hand, since the lower part of the door plate 20 where the inertial force remains cannot stop the momentum, the door plate 20 is temporarily bent with the upper end part as a fulcrum so that the lower part enters the inside of the opening. Become. This is because if such “deflection” occurs in the door plate 20 many times, the door plate 20 may be distorted and cannot be smoothly opened and closed.

  When the folding door 12 attached with the shock absorber 10 [opened state (FIG. 7 (a))] is closed, the abutment surface 32 of the shock absorber 10 comes into contact with the abutment object 102 (in this embodiment, the surface of the door frame 100). (Fig. 7 (b) and Fig. 8 (a)). When the folding door 12 is further closed, the moving body 16 receives a pressing force from the contact object 102 and moves in the linear direction SD with respect to the base, and the damper 18 is compressed accordingly (FIG. 7). (c) and FIG. 8 (b)).

  As the damper 18 is compressed, the elastic force of the damper 18 that attempts to return the piston shaft 42 to its original length increases by the amount that the piston shaft 42 is pushed into the cylinder portion 40. As the angle is closed, the resilience to push the moving body 16 back toward the contact object 102 increases.

  As a result, even if the folding door 12 is vigorously closed, the momentum of the folding door 12 is reduced by the elastic force of the damper 18 when the folding door 12 is fully closed, so that the folding door 12 can be closed slowly and quietly.

  According to the shock absorber 10 of the present embodiment, by selecting which of the protruding piece insertion holes 46 in the damper position adjusting member 19 the protruding piece 28 protruding from the main body (plate) 24 is inserted. The resilience can be adjusted easily by changing the position of the damper 18. Therefore, even when a plurality of dampers 18 are provided, the elastic force of the dampers 18 can be easily adjusted.

  In the present embodiment, the hook-shaped restricting member 26 having an inverted “L” shape in cross section is used. However, the shape of the restricting member 26 is not limited to this, and for example, as shown in FIG. Such a tunnel shape may be used. In this case, the main body portion 31 of the moving body 16 also serves as the guide portion 34. That is, the main body portion 31 is cut along a plane orthogonal to the linear direction SD, and the four corners in the cross section become the guide portions 34 that engage with the tunnel-shaped regulating member 26.

  In the present embodiment, the elastic force of the damper 18 is urged against the contact object 102 via the moving body 16, but the damper 18 directly moves without providing the moving body 16. You may make it contact | abut with respect to the contact object 102. Even if it does in that way, it is because there exists an effect of the invention concerning this application.

  DESCRIPTION OF SYMBOLS 10 ... Shock absorber, 12 ... Folding door, 14 ... Base, 16 ... Moving body, 18 ... Damper, 19 ... Damper position adjustment member, 20 ... Door plate, 22 ... Hinge, 24 ... Main part (plate), 26 ... Restriction member, 28 ... Projection piece, 30 ... Bolt hole, 31 ... Body part, 32 ... Contact surface, 34 ... Guide part, 36 ... Damper accommodating groove, 38 ... Contact surface when closed, 40 ... Cylinder part, 42 ... Piston shaft, 44 ... tip member, 46 ... projecting piece insertion hole, 48 ... leg part, 60 ... convex part, 100 ... door frame, 102 ... contact object, L ... center line, SD ... linear direction

Claims (2)

A base attached to the surface of the door plate constituting the folding door;
A damper that urges the subject of abutment with a resilient force in accordance with the operation of closing the folding door,
The base is
A main body attached to the door plate;
A projecting piece projecting from the main body,
A plurality of projecting piece insertion holes into which the projecting pieces are inserted and removed, and a damper position adjusting member capable of changing the position of the damper by changing the projecting piece insertion holes into which the projecting pieces are inserted. and,
A shock absorber in which a leg portion protrudes from an edge portion of the surface of the damper position adjusting member on which the protruding piece insertion hole is formed, which is adjacent to the surface opposite to the surface on which the damper contacts . A folding door comprising the shock absorber according to claim 1.

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