JP3738322B2 - Folding door runner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a runner for a suspension type folding door. In particular, the runner is provided with a gap removing function that pushes back the door panel when fully closed to the center side of the opening surface so that the panel side ends adjacent to the left and right are brought into close contact with each other.
[0002]
[Prior art]
There is a free folding door in which a panel pair that can be refracted into a V-shape is used as a unit, a plurality of panel pairs are individually refracted and opened, or an arbitrary panel pair can be refracted and moved left and right along a rail. In this type of folding door, the left and right widths of the openings are set to be larger than the total width of all the panel pairs because it is necessary to swing and swing the individual door panels around the runner shafts suspended by the runners. . Therefore, in the closed state where all the panel pairs are expanded, a gap may be generated between the side edges of adjacent panel pairs at the center of the opening. Conventionally, a gap remover for removing this gap has been provided at the vertical frame of the opening or the side end of the guide rail. An example of this type of clearance remover can be found in Japanese Patent Application No. 8-28659.
[0003]
[Problems to be solved by the invention]
As described above, the gap removing tool formed as a dedicated part is relatively inexpensive, but it requires an extra cost and requires assembling work.
[0004]
As described above, the free folding door can refract and open a plurality of panel pairs individually, and can freely select the opening position. However, in many cases, in order to reduce the trouble of opening and closing, the door panel located at the opening side end is temporarily fixed by a runner stopper so that the door panel located at the opening center side can be refracted. An example of this type of runner stopper is Japanese Utility Model Publication No. 8-7008. Of course, when necessary, the door panel at the opening side can be separated from the runner stopper to be refracted. In this way, in the free folding door that temporarily fixes the door panel on the opening side end with the runner stopper, the door panel on the side end is temporarily fixed immovably with the runner stopper. Even if a gap removing tool is provided at the side end of the guide rail, the gap removing action is not exhibited, and a gap is generated between adjacent door panels at the center of the opening.
[0005]
Many of the folding door runners are configured as a four-wheel type, but there is also a two-wheeled type runner in order to simplify the runner structure (Japanese Utility Model Publication No. 7-4308). This type of runner costs less, but tends to meander when the door panel is opened and closed. In particular, when the panel pair is moved left and right while being refracted into a V-shape, a biased moment is applied to the runner, so the door panel is likely to rattle and the runner may be caught on the guide rail.
[0006]
It is an object of the present invention to add a gap removing function to the runner itself, to tightly join the panel pair when fully closed without using a dedicated gap remover, and to reduce the cost by eliminating the gap remover. To provide a runner for the door. The object of the present invention is to allow the panel pair to move to the center side of the opening so that the panel pair when fully closed can be tightly joined even when the door panel at the opening side is temporarily fixed with a runner stopper. Is to make it. An object of the present invention is to enable a panel pair refracted in a V-shape to be easily moved to the left and right without a backlash.
[0007]
[Means for Solving the Problems]
As shown in FIG. 1, the runner of the present invention includes a traveling portion 9 guided by the guide rail 1, an attachment portion 10 attached to the door panel 3, and a turning shaft 11 that connects the traveling portion 9 and the attachment portion 10. It has. The turning shaft 11 is slidably guided along the longitudinal direction of the guide rail 1 by a groove 14 provided in the body 12 of the traveling unit 9. A spring 22 is provided between the pivot shaft 11 and the body 12 to urge the door panel 3 to move toward the center of the opening surface via the pivot shaft 11.
[0008]
Specifically, a block 15 that reciprocates along the groove 14 is provided in the groove 14 provided in the body 12. The upper part of the turning shaft 11 is connected to the block 15 so as to be relatively rotatable. A spring 22 is disposed between the block 15 and the body 12.
[0009]
As shown in FIG. 4, the groove 14 includes a vertical groove 14 a that vertically penetrates the body 12 and a horizontal groove 14 b that intersects the vertical groove 14 a and penetrates the body 12 forward and backward. The block 15 is guided and supported by the lateral groove 14b so as to be slidable left and right. Two rollers 13 are rotatably supported by roller shafts 20 projecting from the front and rear surfaces of the block 15.
[0010]
A check plate 16 projects from one end of the body 12. In a state in which a panel pair composed of two door panels 3 and 3 is refracted into a V-shape, the check plates 16 and 16 of the pair of traveling portions 9 and 9 that support the door panels 3 and 3 as shown in FIG. The contact distance between the door panels 3 and 3 can be regulated by contact. Engagement teeth 17 that engage with each other are provided between the contact surfaces of the check plates 16 and 16.
[0012]
[Action]
In a state where the panel pair is refracted and the opening surface is opened, the pivot shaft 11 is located at one end of the groove 14. When the panel pair is extended and the opening surface is closed, the body 12 of the runner 6 located at the side end of the opening surface is brought into contact with, for example, a stopper 36 attached to the guide rail 1 and the position is regulated. The stoppers 36 are provided at both ends of the guide rail 1, and the opposing interval is set to be smaller than the interval between the outer ends of the body 12 of the runner 6 positioned at both ends of the folding door when all panel pairs are extended. is there. Therefore, the body 12 of the runner 6 in contact with the stopper 36 is pushed back relative to the door panel 3 by the difference in the distance between the runners 6. This pressing force is transmitted to the door panel 3 through the turning shaft 11. As a result, adjacent panel pairs are moved and urged in opposite directions, and closely contact each other at the center of the opening.
[0013]
In the form of temporarily fixing the runner 6 with the runner stopper 33, there are a case where the swivel shaft 11 is engaged and captured and a case where the body 12 is engaged and captured. When the runner stopper 33 is intended to capture the turning shaft 11, a door panel is provided in the same manner as described above by providing a margin for the capture groove or hole in the runner stopper 33 by a moving stroke that can remove the gap. 3 can be moved to the center of the opening without hindrance. This is not necessary when the runner stopper 33 targets the body 12 side.
[0014]
When the turning shaft 11 and the body 12 are connected via a block 15 and the block 15 is slid and guided by a groove 14 provided in the body 12, the turning shaft 11 is prevented from being tilted relative to the groove 14, The runners run smoothly when they refract or extend the panel pair. Since one end of the spring 22 is received by the block 15, the spring 22 can be well prevented from being displaced due to the rotation of the turning shaft 11. When the roller shaft 20 is provided on the front and rear surfaces of the block 15 and the two rollers 13 are supported by the block 15 via the roller shaft 20, the dedicated roller shaft is provided separately. In comparison, the number of runner components can be reduced.
[0015]
The pair of runners 6 provided at the side ends of the panel pair are brought into contact with the check plates 16 provided on the body 12 in a state where the panel pair is refracted into a V shape, and the pair of door panels 3 and 3 are adjacent to each other. Regulate the interval. Further, the contact plates 16 and 16 that are in contact with each other are engaged with each other by engaging teeth 17 and 17 to restrain the movement of the contact runners 6 and 6. The pair of runners 6 and 6 in this state travel together as if they were four-wheel runners with a large inter-wheel distance. Accordingly, even in a V-shaped refraction state in which a large tilting moment acts on the runners 6 and 6, the straight pair can be maintained and the panel pair can be moved easily left and right.
[0016]
In the runner described above, the body 12 and the revolving shaft 11 slide relative to each other, thereby generating a spring force between both the members 12 and 13, and this spring force removes the adjacent gap between the panel pair .
[0017]
【Example】
Example 1
1 to 6 show a folding door runner according to the first embodiment. FIG. 2 shows a free folding door to which the runner of the present invention is applied. The free folding door is composed of two pairs of panels, and is guided and supported in a freely refracting manner by guide rails 1 and 2 provided above and below the opening surface. In each panel pair, adjacent edges of the two door panels 3 and 3 are connected to each other by a hinge 4, and a handle 5 is provided in the vicinity of the refractive edge of one door panel 3. The hinge 4 includes a click mechanism that can maintain the fully opened state. As shown in FIG. 3, runners 6 and steadying rollers 7 that are guided by the guide rails 1 and 2 are mounted on the upper and lower surfaces on both sides of each panel pair.
[0018]
In FIG. 4, the runner 6 includes a traveling unit 9 guided by the guide rail 1, a mounting unit 10 that is mounted in an embedded state in the door panel 3, a turning shaft 11 that connects the traveling unit 9 and the mounting unit 10, and the like. Consists of.
[0019]
The traveling portion 9 is composed of a rectangular block-shaped body 12 made of a plastic molded product, two rollers 13 disposed on the front and rear surfaces of the body 12, and a block 15 that reciprocally slides along a groove 14 provided in the body 12. To do. A check plate 16 wider than the body 12 is integrally projected at one end of the upper surface of the body 12, and thread-like engagement teeth 17 are formed on the projected end surface. The groove 14 is formed by a vertical groove 14a penetrating the body 12 in the vertical direction and a horizontal groove 14b having a quadrangular cross section that intersects the vertical groove 14a and penetrates the body 12 in the front-rear direction. It is guided slidably on. Reference numeral 19 denotes a spring receiving hole.
[0020]
The block 15 is formed by turning a metal square shaft. The roller shaft 20 is integrally formed on the front and rear end faces of the central square block portion, and a vertical hole 21 for connecting the swivel shaft 11 is vertically formed at the center of the square block portion. It is provided in a penetrating manner. After assembling the compression coil spring 22 in the spring receiving hole 19, the block 15 is inserted into the lateral groove 14 b and one end of the spring 22 is received by the block 15. In this assembled state, the roller 13 is assembled on the roller shaft 20 projecting from the front and rear surfaces of the body 12, and is rotatably supported. The shaft end of the roller shaft 20 is caulked.
[0021]
The mounting portion 10 is fitted into a cylindrical case 24 with a flange 23 projecting from the upper end, a plastic nut 25 fitted into the case 24, and a lower end of an insertion hole for the nut 25. It consists of a plug body 26. The insertion hole into which the nut 25 is inserted is formed in a hexagonal cross section, and holds the nut 25 and the plug body 26 so that they cannot rotate relative to each other. The plug body 26 is fixed so as not to be separated by a pin passing through the case 24. Near the lower ends of the case 24 and the plug body 26, set holes 27 are formed so as to penetrate each other. After the case 24 is inserted into the mounting hole of the door panel 3 as shown in FIG. By screwing the bolts 28 into the set holes 27 from the side end face side, the case 24 can be fixed and prevented from rotating at the same time.
[0022]
The turning shaft 11 is a turning product using a hexagonal metal rod as a raw material, and has an operation portion 29 having a hexagonal cross section at the upper and lower central portion, and a round shaft portion is formed above and below the operation portion 29, A threaded portion 30 that engages with the nut 25 is formed on the shaft portion below the operation portion 29. After the roller 31 is inserted into the upper round shaft portion, the round shaft portion is inserted into the vertical groove 14a from the lower surface side of the body 12, the upper portion is inserted into the vertical hole 21 of the block 15, and the shaft end is inserted through the washer. By caulking and deforming, the upper end of the pivot shaft 11 is integrated with the block 15. In this connected state, the turning shaft 11 can rotate relative to the block 15 around the vertical axis. The turning shaft 11 is inserted into the case 24 from the upper surface side thereof, and the screw portion 30 is screwed into the nut 25 to be connected to the mounting portion 10. When the operation part 29 is rotated on the door panel 3 with a spanner or the like and the screwing amount of the screw part 30 is changed, the height of the door panel 3 can be adjusted.
[0023]
The runner 6 is attached so that the check plates 16 are opposed to the door panels 3 and 3 constituting the panel pair. As a result, in a state where the panel pair is refracted into a V shape, the check plates 16 come into contact with each other as shown in FIG. 5 to regulate the proximity distance between the pair of door panels 3 and 3, and further, at the contact end. The teeth 17 engage with each other to constrain the movement of the runner 6 on the counterpart side. In this way, when the adjacent runners 6 and 6 are constrained to each other via the check plates 16 and 16, the pair of runners 6 and 6 move as if they are four-wheel runners, and the runners 6 and 6 meander. Can be prevented. Therefore, even under a state where a large tilting moment acts on the runners 6 and 6, the panel pair moves straight forward.
[0024]
Runner stoppers 33 for temporarily fixing the runners 6 are provided on both side ends of the upper guide rail 1. 1 and 5, the runner stopper 33 includes a catcher 35 having a pair of fork-like elastic arms 34, and a nut body 37 having an L-shaped cross section that also serves as the stopper 36. The nut body 37 is disposed inside the rail. The catcher 35 and the nut body 37 disposed on the lower surface of the rail are fastened with bolts 38 and fixed to the guide rail 1. Roller stoppers similar to those described above are also provided on both side ends of the lower guide rail 2 (not shown) so that the steadying roller 7 can be engaged and captured. However, the roller stopper in this case has a nut body 37 formed in a flat plate shape.
[0025]
In many cases, as shown in FIG. 1, the left and right panel pairs are adjacent to each other at the center of the opening surface by engaging and capturing the runner 6 and the steady roller 7 positioned at both ends of the opening surface with the runner stopper 33 and the roller stopper. Each panel pair can be opened and closed by operating the door panels 3 and 3. At this time, as shown in FIG. 6, the catcher 35 of the runner stopper 33 is inserted into the groove 39 between the elastic arms 34 and 34 with the roller 31 having a pair of elastic arms 34 fitted on the turning shaft 11 in front and back. A roller 31 is located. The groove 39 is formed in a horizontally long shape, and the runner 6 can move in the horizontal direction within the range. The reason is described below.
[0026]
When each of the left and right panel pairs is spread out to be flush with each other and the opening surface is closed, the body 12 of the runner 6 positioned at both ends is received by the stoppers 36. The opposing distance between the stoppers 36 at both ends is set to be smaller than the distance between the outer ends of the body 12 of the runner 6 located at both ends when the left and right panel pairs are stretched in a flush manner. Therefore, when each panel pair is fully extended, the mounting portion 10 and the turning shaft 11 move toward the stopper 36 while the body 12 remains in contact with the stopper 36. That is, the block 15 slides relative to the body 12 while compressing and deforming the spring 22. In order to allow this relative sliding, a groove 39 between the elastic arms 34 is formed in a horizontally long shape as shown in FIG.
[0027]
In the state where the block 15 is slid as described above, the tension of the spring 22 acts on the door panel 3 via the pivot shaft 11 unlike the case where the block 15 is received by the groove end of the lateral groove 14b. As a result, as shown by the arrows in FIG. 1, each panel pair is moved to the center side of the opening surface by the force of the spring 22, and the side end surfaces of the adjacent door panels 3 and 3 are brought into close contact with each other. That is, in the state where the opening surface is closed by the left and right panel pairs, it is possible to prevent a gap from being generated between the panel pairs and improve the appearance of the folding door. In addition, since the clearance gap which arises in the side edge of an opening surface is covered with the plate-shaped doorfold as shown in FIG. 5, it does not become a problem.
[0028]
(Example 2)
FIG. 7 shows a second embodiment in which a part of the runner 6 is changed. In this embodiment, a dedicated roller shaft 41 penetrating the body 12 forward and backward is provided on the right side of the lateral groove 14b, and the roller 13 is pivotally supported by the roller shaft 41 so as to be freely rotatable. Since the others are the same, the same reference numerals are assigned to the same members, and descriptions thereof are omitted. In the following embodiments, overlapping explanations are handled in the same manner. Although depending on the load acting on the runner 6, when the load is relatively light, the block 22 can be omitted and the spring 22 can be directly received by the turning shaft 11.
[0029]
Example 3
FIG. 8 shows a third embodiment in which the runner 6 is a four-wheel type. There, a pair of runner shafts 41 is provided near the left and right ends of the body 12, and the four rollers 13 are pivotally supported by these runner shafts 41 and 41. In addition, a groove 14 was provided between both runner shafts 41 and 41, and the turning shaft 11 was connected to a block 15 guided and supported by the groove 14. In the third embodiment, the check plate 16 can be omitted.
[0031]
In addition to the above, the spring 22 can be a tension spring instead of a compression spring. The attachment part 10 of the runner 6 does not need to have the structure described in the embodiment. For example, the attachment part 10 is inserted and attached from the side end face side of the door panel 3 or an L-shaped metal fitting that covers the upper end face of the door panel 3. A form or the like for preventing the removal can be adopted, and the structure is not particularly limited. The folding door can be composed of two or more panel pairs.
[0032]
【The invention's effect】
In the present invention, a structure for removing the gap is added to the runner 6 itself so that the panel pair in the fully closed state is brought into close contact with the center of the opening surface, and there is a gap between the side edges of the adjacent door panels 3 and 3. It was made possible to prevent it from occurring. Therefore, as compared with the case where a dedicated gap removing tool is used, the total cost of the folding door can be reduced by the amount that the cost and labor of construction can be omitted, and the appearance of the fully-folded folding door can be improved. Since the clearance is removed on the side of the runner 6, even when the runner 6 and the runner stopper 33 are temporarily fixed, there is an advantage that the clearance facing the panel can be removed without any trouble.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view of a runner.
FIG. 2 is a perspective view of a folding door.
FIG. 3 is a vertical side view of a folding door.
FIG. 4 is an exploded perspective view of a runner.
FIG. 5 is a plan view showing the operation of the check plate of the runner.
FIG. 6 is a plan view of a runner stopper.
7 is a front view of a runner according to Embodiment 2. FIG.
FIG. 8 is a front view of a runner according to a third embodiment.
[Explanation of symbols]
1 Guide rail 3 Door panel 9 Traveling part 10 Mounting part 11 Rotating shaft 12 Body 14 Groove 15 Block 22 Spring

Claims (4)

A traveling part (9) guided by the guide rail (1), a mounting part (10) mounted on the door panel (3), and a pivot shaft for connecting the traveling part (9) and the mounting part (10) ( 11) a folding door runner comprising:
The swivel shaft (11) is slidably guided and supported along the longitudinal direction of the guide rail (1) by a groove (14) provided in the body (12) of the traveling unit (9).
A folding spring (22) is provided between the pivot shaft (11) and the body (12) for urging and moving the door panel (3) toward the center of the opening surface via the pivot shaft (11). Door runner. A block (15) that slides back and forth along the groove (14) is provided in the groove (14) provided in the body (12).
The upper part of the pivot axis (11) is connected to the block (15) so as to be relatively rotatable,
The folding door runner according to claim 1, wherein a spring (22) is arranged between the block (15) and the body (12). The groove (14) is composed of a vertical groove (14a) that vertically penetrates the body (12) and a horizontal groove (14b) that intersects the vertical groove (14a) and penetrates the body (12) in the front-rear direction. And
The block (15) is supported by the lateral groove (14b) so as to be slidable left and right.
The folding door runner according to claim 2, wherein two rollers (13) are pivotally supported on the roller shaft (20) projecting from the front and rear surfaces of the block (15). A check plate (16) projects from one end of the body (12),
In a state where a panel pair composed of two door panels (3) and (3) is refracted into a V-shape, a pair of running parts (9) and (9) for supporting the door panels (3) and (3) The check plates (16) and (16) are in contact with each other, and the proximity distance between the door panels (3) and (3) can be regulated.
The folding door runner according to claim 2 or 3, wherein engagement teeth (17) that engage with each other are provided between the contact surfaces of both check plates (16), (16) .

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