JP6180724B2 - Sliding door mounting structure, sliding door and storage device - Google Patents

Description

  The present invention relates to a sliding door mounting structure, a sliding door, and a storage device in which a sliding member for reducing friction with a rail is provided at the upper end of the sliding door.

  2. Description of the Related Art Conventionally, many storage devices are known that include a plurality of sliding doors that close a storage space and that are arranged in the front-rear direction so that they can be pulled apart. Further, among those provided with a plurality of sliding doors as described in Patent Document 1 below, in order to simultaneously open and close the plurality of sliding doors, a link bar is provided on the back side of the sliding door, and the sliding door is provided via the link bar. Some of them can be linked to each other.

  Further, in such a sliding door, sliders and rollers as sliding members are arranged on the upper end side and the lower end side, respectively, and these sliders and rollers are engaged with the upper rail and the lower rail of the housing of the storage device or the like, Usually, it is slidably attached to the frame. Further, such a sliding member is often unitized as a sliding means and is often attached to a plurality of locations at the upper and lower ends of the sliding door.

  Traditionally, in order to attach the upper and lower sliding means to the sliding door, the sliding door body is made of sheet metal, and another sheet metal bending member is provided on each of the upper end and the lower end by welding, so that the upper end side is directed upward. A substantially U-shaped space that opens is formed, and a substantially U-shaped space that opens downward is formed on the lower end side so that each sliding means is accommodated therein.

  However, since the configuration using welding leads to an increase in cost, there is a need for a configuration that can be manufactured without using welding by simply bending the upper and lower ends of the sliding door.

  In addition, in a conventional sliding door, a configuration in which the upper sliding means is temporarily engaged deeply in the upper rail and then the lower sliding means is dropped on the lower rail and is engaged using a so-called tendon system. In many cases, it is necessary to become accustomed to the installation, and therefore further ease of installation is required.

  A configuration as described in Patent Document 2 has also been proposed as a device capable of realizing the reduction in manufacturing cost and the ease of mounting the sliding door as described above. This is because the upper end of the sliding door is bent by 90 ° continuously from the front plate to the rear plate of the upper plate to form a substantially U-shaped space opened downward, and a slider as an upper sliding means is accommodated in the space. It is a thing. And the front-end | tip of a slider protrudes from the opening provided in the upper board of the sliding door, and it is comprised so that it may engage with an upper rail. In addition, the slider is integrally formed of resin, and an elastic claw portion is formed on the rear surface. The claw portion is contradictory to one of two engagement windows formed on the rear plate of the sliding door so as to be spaced apart from each other. It can be operated to be moored at.

  When the claw portion is moored by the lower engagement window, it becomes a standby position where the tip of the slider does not protrude from the upper part of the sliding door, and when the claw portion is moored by the upper engagement window, the slider The tip of the projection protrudes from the upper part of the sliding door, and becomes a protruding position where engagement with the upper rail is possible. Therefore, this sliding door can engage the slider with the upper rail by changing the slider as the upper sliding means to the protruding position after engaging the lower sliding means with the lower rail while the slider is in the standby position. . For this reason, it is not necessary to lift and operate the sliding door as in the Kendon method, so that the work can be easily performed.

JP 2009-84925 A JP 2009-30298 A

  By the way, since the sliding door as described above is opened and closed by operating a handle separated from the sliding means, there is a case where an in-plane inclination is caused by the frictional resistance between the sliding means and the rail.

  At this time, in the case of the configuration described in Patent Document 2, the upper portion of the slider abuts against the upper surface in the upper rail and is stretched, so that the frictional resistance is further increased and the opening and closing may become more difficult. . In addition, if the impact at the time of contact is strong, the slider may be damaged, and the sliding door may not be attached or opened / closed.

  Moreover, the phenomenon in which the sliding door is inclined as described above is more likely to occur when the weight of the sliding door is large. Since the weight increases, the same phenomenon tends to occur. In addition, the sliding doors that can be linked open / closed are connected by link bars and exert a transmission force on each other, so that a force in a direction different from the opening / closing direction is applied to each sliding door. Therefore, the inclination is more likely to occur, and the above problem appears remarkably.

  In addition to tilting in the plane of the sliding door, the sliding door is displaced up and down due to vibration due to transportation, earthquake, etc., and the upper part of the slider comes into contact with the upper surface in the upper rail and deforms by impact. Or it could be damaged.

  The present invention aims to effectively solve the problems as described above, specifically, while suppressing the deformation and damage of the member while ensuring the convenience of reducing the manufacturing cost and mounting, It is an object of the present invention to provide a sliding door mounting structure capable of maintaining and smoothly opening and closing the sliding door, and a sliding door and a storage device using the same.

  In order to achieve this object, the present invention takes the following measures.

  That is, the sliding door mounting structure according to the present invention is such that an upper sliding means is provided on the upper end side of the sliding door, and the upper sliding means is attached to the upper rail by engaging the upper sliding means with the upper sliding means. A slider receiver attached to the upper end of the sliding door, and a slider body held inside the slider receiver so that a sliding portion set in part can be projected and retracted from the slider receiver. At least one of the slider receiving side first engaging portion and the slider main body side engaging portion provided in the slider main body is configured to be elastically deformable in the vertical direction. When the engaging portion and the slider main body side engaging portion are engaged, the sliding portion protrudes above the upper end of the sliding door and engages with the upper rail. The slider body is configured to be elastically supported in the vertical direction with respect to the slider receiver.

  With this configuration, since the slider body is elastically supported in the vertical direction, even when the sliding door tilts and the upper part of the sliding portion of the slider body abuts against the upper surface in the upper rail, the slider moves downward. By sinking, the load accompanying the contact can be reduced, and the frictional resistance can be suppressed. In addition, since the entire sliding door will be elastically supported in the vertical direction while maintaining the engagement, while preventing the sliding door from being inadvertently removed, it absorbs shocks caused by transportation or earthquakes, Deformation and damage of the upper sliding means can be prevented.

Further, in order to easily achieve both a specific engagement structure and a support structure for imparting elasticity, the slider receiver side first engagement portion is provided with an opening provided on a standing wall constituting the slider receiver. In addition, an elastic spring portion is provided at the lower edge of the opening, and the slider main body side engaging portion is formed as a protruding portion provided on a standing wall constituting the slider main body at a position corresponding to the opening. It is preferable to form and project the projecting portion with the opening. In the present invention, the elastic spring portion is provided integrally with the lower edge of the opening.

In order to obtain the above effect with a simpler structure, the present invention provides that the elastic spring portion has a lower edge portion of an opening constituting the slider receiving side first engaging portion vertically It is formed as a leaf spring whose direction is the thickness direction.

  In addition, in order to easily perform the operation of bringing the slider main body side engaging portion and the slider receiving side first engaging portion into the engaged state or releasing the engagement, the slider main body is raised. The wall is provided with an elastic piece that extends downward in a cantilevered manner with the upper side as the base end, the protrusion is formed on the base end side of the elastic piece, and the operation part is on the tip side. It is preferable to configure so as to be formed.

  Further, in order to suppress the rattling of the slider body with respect to the slider receiver and further improve the operation stability, the slider receiver includes a groove portion extending in the vertical direction, and extends in the vertical direction regulated in the groove portion. It is preferable that the slider main body is provided with an existing convex guide portion.

  In order to improve the convenience of attaching the sliding door, the slider receiver includes a slider receiving side second engaging portion below the slider receiving side first engaging portion, and the slider receiving side first It is preferable that the slider receiving side second engaging portion and the slider main body side engaging portion engage with each other instead of the engaging portion so that the sliding portion can be in a standby position where it is submerged from the upper end of the sliding door. is there.

  In addition, the slider receiver and the slider body can be easily manufactured at low cost, and the slider receiver and the slider body can be suitably realized by utilizing the elasticity of the resin, and the slider receiver and the slider body can be suitably engaged. It is preferable that each is formed by resin integral molding.

  Since the present invention has the mounting structure as described above, even when the sliding door adopting the above-described upper sliding means is applied to an existing rail, the operation stability is ensured and the strength against external force due to vibration or the like is secured. Can do.

  In addition, in the storage device in which the sliding door is mounted at a position for opening and closing the storage space by the mounting structure described above, the stability and durability of the opening / closing operation can be improved. Furthermore, it is more preferable to provide a storage device that includes a plurality of sliding doors and that includes an interlocking mechanism that interlocks the sliding doors between an open state in which they overlap each other and a closed state in which the polymerization is substantially eliminated. .

  According to the present invention described above, the manufacturing cost can be reduced with a simple configuration, and the deformation and damage of the member can be suppressed while maintaining the convenience of the attachment, and the sliding door can be maintained in a smooth state and smooth. It is possible to provide a sliding door mounting structure that can be opened and closed, and a sliding door and a storage device using the same.

The front view of the storage apparatus which concerns on one Embodiment of this invention. The partial expanded longitudinal cross-sectional view which shows the upper rail periphery of the storage device. The partial expanded longitudinal cross-sectional view which shows the lower rail periphery of the storage device. The perspective view which shows the state which decomposed | disassembled the sliding door and slide unit which concern on the embodiment. The perspective view which shows the state which attached the slider receiver to the sliding door from the state of FIG. The figure for demonstrating the function of the slide unit attached to the sliding door which concerns on the embodiment. The figure for demonstrating the shape of the slider receiver which concerns on the same embodiment. The figure for demonstrating the shape of the slider main body which concerns on the same embodiment. Explanatory drawing for demonstrating the elastic support function of the slider main body by the slider receiver which concerns on the same embodiment. The perspective view which shows the state which isolate | separated the sliding door and roller unit which concern on the embodiment. The perspective view which shows the state which attached the roller unit to the sliding door from the state of FIG. The figure for demonstrating the shape of the lower end of the sliding door which concerns on the same embodiment. The perspective view which shows the state which decomposed | disassembled the roller unit which concerns on the embodiment. The figure for demonstrating the shape of the holder main body which concerns on the same embodiment. The figure for demonstrating the shape of the holder main body which concerns on the embodiment following FIG. The figure for demonstrating the shape of the holder lid which concerns on the same embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a storage device 1 to which a sliding door 2 mounting structure according to this embodiment is applied. This storage device 1 is provided with three sliding doors 2-2 in a sheet metal casing 11 having a top plate 11A, a bottom plate 11B, left and right side plates 11C, and a back plate (not shown). The sliding doors 2 and 2 are arranged so as to be shifted in the front-rear direction and can be moved left and right, and the storage space inside the housing 11 can be opened by being moved.

  Here, in the present embodiment, when the description is made using words indicating directions such as front, rear, left, and right, it is assumed that the storage device 1 is viewed from the front. Moreover, the left-right direction may be called the width direction.

  The sliding doors 2 and 2 are supported inside the casing 11 by using an attachment structure as shown in FIGS. 2 and 3 so that the front and rear of the casing 11 can be smoothly moved in the left-right direction.

  That is, in order to support the upper part of the sliding door 2, as shown in FIG. 2, a downward concave rail mounting portion 12 is provided inside the top plate 11 </ b> A of the housing 11, and the upper rail member 14 is attached to the inside by screws. Yes. The upper rail member 14 is made of resin, and three parallel upper rails 14a are formed on the lower surface. The top plate 11A has a front surface bent downward to form a rail concealment 11A1 whose lower edge is substantially flush with the upper rail member 14, and the upper rail member 14 is hidden when viewed from the front.

  When the sliding doors 2 and 2 are installed in the housing 11, the upper end is below the upper rail member 14, and a gap is formed between the upper and lower rail members 14. And the protrusion piece 65 as a sliding part extended upwards from the slide unit 3 as an upper sliding means mentioned later provided in the upper end is engaged by being inserted in the inside of the said upper rail 14a. .

  Moreover, in order to support the lower part of the sliding door 2, as shown in FIG. 3, the upward concave rail attachment part 13 is provided in the inside of the bottom plate 11B of the housing | casing 11, and the lower rail member 15 is attached to the inside. The lower rail member 15 is also made of resin, and three parallel lower rails 15a are formed on the upper surface. The bottom plate 11B has a front surface folded upward to form a rail concealment 11B1 whose upper edge is substantially flush with the lower rail member 15. The lower rail member 15 is hidden when viewed from the front.

  When the sliding doors 2 and 2 are installed in the housing 11, the lower end is above the lower rail member 15, and a gap is formed between the upper and lower rail members 15. A roller 4a serving as a lower sliding member constituting roller units 4 to 4 serving as lower sliding means (described later) provided at the lower end is in contact with the upper surface 15b of the lower rail member 15 at a part thereof. In part, it is engaged by being inserted into the lower rail 15a.

  Further, referring back to FIG. 1, the left sliding door 2 as viewed from the front is provided with a handle 21 at the upper left, and the right sliding door is provided with a handle 21 at the upper right. By operating these, The three sliding doors 2 and 2 move in conjunction with each other, and can be opened and closed. Therefore, while the rotation support part 25 is provided in the back surface of the right sliding door 2, the rail member 23A extended in the vertical direction is provided in the back surface of the center sliding door 2, and the back surface of the left sliding door 2 is provided. Also, a rail member 23B extending in the vertical direction is provided. Further, one end is rotatably supported by the rotation support portion 25 and the other end is supported by the rail member 23B via the roller 26 so as to be rotatable and movable. A link bar 24 supported by the rail member 23A so as to be rotatable and movable is provided. The link bar 24, the roller 26, and the rail members 23A and 23B constitute an interlocking mechanism that interlocks the sliding doors 2 and 2. That is, all the sliding doors 2 and 2 are connected by the link bar 24, so that even if the left and right sliding doors 2 are moved, the open state in which all the sliding doors 2 and 2 are overlapped with each other and the polymerization are almost eliminated. It is designed to open and close in cooperation with the closed state.

  In addition, a lock 22 is provided below the left handle 21, and a locking / unlocking mechanism 27 that operates in conjunction with the lock 22 is provided on the back side of the sliding door 2. The locking / unlocking mechanism 27 can be locked by restricting the operation of the link bar 24 in conjunction with the operation of the lock, and can be unlocked by releasing this restriction.

  As shown in FIG. 4, a slide unit 3 as an upper sliding means is attached to the sliding door 2. The slide unit 3 includes a slider receiver 5 and a slider body 6 as an upper sliding member.

  The sliding door 2 to which the slide unit 3 is attached is configured by bending a sheet metal, and its upper end is substantially U-shaped by bending the upper plate 82 and the rear plate 83 by 90 ° from the front plate 81 and opening the lower side. Is formed. A rectangular opening 82 a corresponding to the protruding piece 65 of the slide unit 3 is formed in the upper plate 82. A pair of rectangular openings 83a and 83a are formed in the rear plate 83 with the opening 82a as the center, and a rectangular notch 83b is formed in the lower edge 83c between them.

  The slider receiver 5 constituting the slide unit 3 is formed in the shape shown in FIGS. 4 and 7 by resin integral molding. 7A is a front view showing the slider receiver 5 as viewed from the rear side, and FIGS. 7B and 7C are cross-sectional views taken along line AA in FIG. 7A, respectively. The arrow figure in the BB cross section is shown.

  The slider receiver 5 has a rectangular parallelepiped shape including an upper surface 53, a rear surface 51 as an upright wall, and left and right side surfaces 52, 52, and the inside is a space for holding a slider body 6 described later. In the upper surface 53, an opening 53a corresponding to the opening 82a in the upper plate 82 of the sliding door 2 is formed in a rectangular shape with the front open.

  Further, elastic pieces 54 and 54 are formed on the rear surface 51 at positions corresponding to the pair of openings 83a and 83a in the rear plate 83 of the sliding door 2, and the elastic pieces 54 and 54 protrude rearward. Claw portions 54a and 54a are provided, respectively. The elastic piece 54 has a cantilever shape extending downward with the upper portion as a base end by opening the periphery in a U shape. Therefore, the tip can be elastically displaced in the front-rear direction starting from the top, and the claw portion 54a can be pulled in the inner direction accordingly.

  Further, at the position between the elastic pieces 54, 54, a rectangular parallelepiped protruding portion 51 a protruding rearward is formed on the rear surface 51, and corresponds to the notch 83 b in the rear plate 83 of the sliding door 2. ing.

  A horizontally elongated first opening 55 serving as a slider receiving side first engaging portion is formed below the protruding portion 51a. Also, below the first opening 55, a second opening 56 as a slider receiving side second engaging portion is provided in a T-shape. The lower edge of the first opening 55, that is, the portion constituting the boundary between the first opening 55 and the second opening 56 is a spring portion 55a formed as a leaf spring, and is elastic in the vertical direction. Has been. That is, by doing so, the first opening 55 as the slider receiving side first engaging portion is configured to be elastically deformable.

  The spring portion 55a is supported on the left and right ends by the rear surface 11 and is a doubly-supported spring utilizing the elasticity of the resin. The spring portion 55a is thin in the vertical direction and is formed to protrude rearward from the rear surface 51. By doing so, the dimension in the front-rear direction is made larger than the thickness of the rear surface 51. In this way, elasticity is imparted exclusively in the vertical direction, and it has rigidity in the left and right and front and rear directions, and also in the twisting direction.

  Further, since the second opening 56 is formed in a T-shape, it has upper step walls 56a and 56a. When the spring portion 55a is largely displaced downward, the step wall 56a abuts. Therefore, excessive displacement is suppressed.

  Furthermore, groove portions 51b that extend in the vertical direction and are open in the front-rear direction are formed at the left and right end portions below the rear surface 51.

  The slider body 6 is formed in the shape shown in FIGS. 4 and 8 by resin integral molding. FIG. 8A is a front view showing the slider main body 6 as viewed from the rear side, and FIGS. 8B and 8C are CC views shown in FIG. 8A, respectively. The arrow view in a cross section and DD cross section is shown.

  The slider body 6 has a rectangular parallelepiped shape including five surfaces of an upper surface 63 and a bottom surface 64 in addition to the rear surface 61 and the left and right side surfaces 62 and 62 as standing walls, and ribs for reinforcement are also formed inside as appropriate. Has been. In addition, a plate-like protruding piece 65 is formed on the upper surface 63 as a sliding portion extending upward.

  Furthermore, an elastic piece 66 extending in the vertical direction is provided in the center of the rear surface 61 in the width direction. The periphery of the elastic piece 66 is a substantially U-shaped opening that communicates with the inside of the elastic piece 66, and has a cantilever shape that is connected to the rear surface 61 by an upper base end. A claw portion 66a as a protruding portion for engaging with the first opening 55 or the second opening 56 is provided on the proximal end side of the elastic piece 66 so as to protrude rearward. In addition, a flat-plate-like operation portion 66b that protrudes rearward is provided at the lower end of the elastic piece 66. By pushing the operation portion 66b forward, the claw portion 66a can be pulled inward from the rear surface 61. In order to facilitate such an operation, a part of the lower portion of the rear surface 61 is formed as a stepped portion 61b that is displaced forward, so that the amount of displacement that can be pushed into the operating portion 66b is increased.

  Further, convex guide portions 61a and 61a extending in the vertical direction and projecting rearward are formed at the left and right corners of the rear surface 61 at positions corresponding to the groove portions 51b and 51b.

  The slider receiver 5 and the slider body 6 configured as described above are attached to the sliding door 2 as follows.

  First, the slider receiver 5 is attached to the sliding door 2, as shown in FIG. The slider receiver 5 is inserted between the front plate 81 and the rear plate 83 of the sliding door 2 so that the lower surface of the upper plate 82 of the sliding door 2 and the upper surface 53 of the slider receiver are close to or in contact with each other. At this time, since the claw portion 54a of the elastic piece 54 is tapered upward, the claw portion 54a is pushed inward along the inner surface of the rear plate 83 and does not obstruct the insertion. When the insertion is performed to an appropriate position, the claw portion 54a is engaged by protruding from the opening 83a and being hooked, and positioning in the vertical direction is performed. At the same time, the protruding portion 51a is fitted into the notch 83b of the sliding door 2, whereby positioning in the left-right direction is also performed. Furthermore, since the distance between the front plate 81 and the rear plate 83 of the sliding door 2 is substantially equal to the thickness of the slider receiver 5 in the front-rear direction, the slider receiver 5 is firmly positioned in the front-rear direction.

  When the slider receiver 5 is attached to the sliding door 2 in this way, the lower half of the slider receiver 5 is exposed below the lower edge 83c of the rear plate 83, and the slider receiver-side first engaging portion is exposed. The first opening 55 and the second opening 55 as the slider receiving side second engaging portion are also exposed.

  From this state, as shown in FIG. 6A, the slider body 6 is inserted into the slider receiver 5 and attached. In the state of FIG. 6A, only about half of the portion of the slider body 6 that forms a rectangular parallelepiped shape is inserted into the slider receiver 5, and the projecting piece 65 is also immersed inside the slider body 6. This is a so-called standby position that does not protrude above the upper plate 82 of the sliding door 2. The position of the slider body 6 is regulated in the front-rear direction by the inner side of the rear surface 51 of the slider receiver 5 and the front plate 81 of the sliding door 2, and the position of the slider body 6 is regulated by the inner sides of the left and right side surfaces 52, 52 of the slider receiver 5. So that the dimensions are adjusted.

  When the slider body 6 is inserted into the slider receiver 5, the upper portion of the claw portion 66a of the elastic piece 66 is formed in a taper shape. It will never be. When the insertion is made to a predetermined position, the claw portion 54a is engaged by protruding from the second opening 56 to be hooked, and positioning in the vertical direction is performed. In this state, when the operation portion 66b is pushed in and the claw portion 54a is pulled in, the engagement is released and the slider body 6 can be detached from the slider receiver 5.

  As described above, when the slider receiver 5 is attached to the slider body 6 as the standby position, the slide unit 3 and the sliding door 2 are integrated so that separation is difficult unless a special operation is performed. Therefore, even if the sliding door 2 is transported in this state, there is no need to worry about the slide unit 3 coming off and falling, and handling becomes very easy.

  Further, in the slide unit 3, the projecting piece 65 projects upward from the upper plate 82 of the sliding door 2 as shown in FIG. 6B by pushing the slider body 6 into the slider receiver 5 from below. It is possible to be a position.

  When the slider body 6 is pushed up, the claw portion 66a of the elastic piece 66 abuts against the spring portion 55a and is pushed into the inside following this, so that it is possible to change from the standby position to the protruding position with a light force. ing. In the protruding position, the claw portion 66a engages so as to protrude from the first opening 55 and be hooked instead of the second opening 56. At this time, most of the portion of the slider body 6 that forms a rectangular parallelepiped shape is inserted into the slider receiver 5. However, the operation portion 66b is exposed from below the rear surface 51 of the slider receiver 5, and the engagement between the claw portion 66a and the first opening 55 can be released by pushing the operation portion 66b. Yes.

  Further, in the state where the protruding position is set, the convex guide portions 61a and 61a formed on the slider body 6 are fitted into the groove portions 51b and 51b formed on the slider receiver 5, and the left and right sides are allowed to move in the vertical direction. The position in the direction can be regulated, and it can be held firmly in directions other than the top and bottom.

  Furthermore, as described above, since the lower edge portion of the first opening 55 is formed as the spring portion 55a, the engagement between the claw portion 66a and the first opening 55 as shown in FIGS. 9 (a) and 9 (b). The slider body 6 can be elastically displaced with respect to the slider receiver 5 while maintaining the combined state. In the no-load state shown in FIG. 9A, when the protruding amount of the protruding piece 65 from the upper plate 53 of the slider receiver 5 is L0, as shown in FIG. The load can be elastically deformed so that the center of the spring portion 55a is curved downward, and the protrusion amount can be reduced to L1. As described above, further deformation is prevented by the spring portion 55a coming into contact with the upper end 56a of the second opening 56. The change L0-L1 of the protrusion amount is set to be about 2 mm. Within this range, the increase in the frictional resistance due to the in-plane inclination of the sliding door 2 is reduced, and the vertical movement due to vibration or the like is reduced. It is possible to absorb the impact associated with.

  Utilizing the above-described configuration, the slider unit 6 attached to the sliding door 2 is transported to the housing 11 in the standby position, aligned with the upper rail 14a, and then the slider body 6 is pushed up. With only one action, it is possible to make the protruding piece 65 project into the upper rail 14a and engage and attach it. Moreover, since it is not necessary to lift and adjust the position of the sliding door 2 as in the case of the “Kandon” method, the attachment work can be easily performed with little effort. By attaching the sliding door 2 in this way, the storage space inside the housing 11 can be opened and closed by the sliding door 2. Further, by pushing the operating portion 66b of the elastic piece 66, it is possible to easily release the engagement and immerse the protruding piece 65 to the standby position, and remove the sliding door 2 from the housing.

  Even when the sliding door 2 is attached to the housing 11, the sliding door 2 is inclined in the plane during the opening / closing operation, and the upper end of the protruding piece 65 of the slider body 6 contacts the upper surface 14b of the upper rail 14a. As described above, the protruding piece 65 sinks downward by the action of the spring portion 55a, whereby the contact pressure generated at the contact portion can be reduced and the increase in friction can be suppressed. Therefore, it is possible to smoothly open and close the sliding door 2 without excessively increasing the frictional resistance. In addition, the projection piece 65 can be prevented from being deformed or damaged, and deformation of the mounting portion of the surrounding sliding door 2 is also suppressed, thereby preventing the slider unit 3 from coming off.

  Further, even when the sliding door 2 is tilted, the amount of sinking of the protruding piece 65 is limited to L0-L1, so that the state where the protruding piece 65 and the upper rail 14a are engaged can be maintained. This also contributes to prevention of disconnection.

  In addition, when the sliding door 2 is transported in a state attached to the housing 11 or when an earthquake occurs after installation, the vertical displacement of the sliding door 2 occurs due to vibration, and the upper end of the protruding piece 65 is the upper rail. It is also conceivable to contact the upper surface 14b in 14a. In such a case, it is possible to absorb the impact by the elasticity of the spring part 55a and suppress damage and deformation of each part including the protruding piece 65.

  The above-described inclination in the plane of the sliding door 2 and the vertical displacement due to vibration tend to appear more prominently when the weight of the sliding door 2 is present. Furthermore, when the handle 21 of the sliding door 2 is arranged so as to be largely separated above or below the center of gravity, or when the plurality of sliding doors 2 are connected by the link bar 24, a rotational moment is likely to be generated and the inclination is further increased. It tends to occur. However, since the attachment structure of this embodiment is a structure that is strong against such inclination and vertical displacement, it has operational stability and durability.

  In the sliding door 2 mounting structure according to the present embodiment, as shown in FIG. 10, a roller unit 4 as a lower sliding means can be mounted below the sliding door 2. The roller unit 4 includes a roller 4a and a holder 7 that rotatably supports the roller 4a. The holder 7 also includes a holder body 7a and a holder lid 7b (see FIG. 13) as a lid member. It is comprised from the structural member.

  As shown in FIGS. 10 and 12, the lower end of the sliding door 2 to which the slide unit 4 is attached is formed by bending a sheet metal. The bottom plate 84 and the rear plate 85 are bent 90 degrees from the front plate 81, and the upper side is opened. It is formed in a substantially U-shape. In addition, Fig.12 (a) shows the front view represented on the basis of the case where the lower end vicinity of the sliding door 2 is seen from back, and FIG.12 (b) shows the bottom view seen from the downward direction. Furthermore, FIG.12 (c) has shown the arrow directional view of the EE cross section described in Fig.12 (a).

  The bottom plate 84 is formed with a substantially rectangular opening 84a for inserting the roller unit 4 from below. In addition, rectangular first cutouts 84b and 84b extending in the width direction are provided at positions in the vicinity of the left and right front plates 81 of the opening 84a in the bottom plate 84, respectively. Therefore, when the sliding door 2 is viewed from below, the opening 84a and the two first cutouts 84b and 84b are connected to form an inverted T-shape. Further, a substantially rectangular second notch 85a is also formed below the rear plate 83 so as to be continuous with the opening 84a, and a step is formed in the vertical direction.

  As shown in FIG. 13, the roller unit 4 as the lower sliding means is integrated by sandwiching the roller 4 a as the sliding member by the holder main body 7 a constituting the holder main body 7 and the holder lid 7 b. is there.

  The roller 4a is coaxially provided with a small diameter portion 4a1 for contacting the upper surface 15b (see FIG. 3) of the lower rail member 15 and a large diameter portion 4a2 inserted into the lower rail 15a. A hole 4a3 is provided.

  The holder body 7a is formed by resin integral molding into the shape shown in FIGS. 14A is a front view showing the case where the holder body 7a is viewed from the rear, and FIG. 14B is a rear view viewed from the reverse direction. Further, FIG. 15A shows a side view of the holder body 7a, and FIG. 15B shows an arrow view of the FF cross section described in FIG. 14A.

  The holder main body 7a has a rectangular parallelepiped shape composed of four surfaces of a rear surface 71, left and right side surfaces 72, 72, and an upper surface 73, and the inside is a space for holding the roller 4a.

  A cylindrical shaft portion 7a1 having a round hole 7a2 formed therein extends from the substantial center of the rear surface 71 toward the inside. The shaft portion 7a1 is formed to have a slightly smaller diameter than the shaft hole 4a3 of the roller 4a, and the roller 4a3 can be rotatably supported by fitting the shaft hole 4a3 of the roller 4a to the outer periphery thereof. It has become. Further, the corner formed between the upper surface 73 and the side surfaces 72 and 72 is formed to have a large thickness, and round holes 7a3 and 7a3 that open toward the front are formed in the thickness of the corner, respectively. doing. These round holes 7a3 and 7a3 and the round hole 7a2 can be used for attaching the holder lid 7b. Furthermore, a protruding portion 73 a that extends continuously in a rectangular shape from the upper surface 73 is formed.

  A pair of elastic pieces 75 and 75 are formed at a position slightly lower than the upper edge of the rear surface 71 and separated from each other on the left and right, and claw portions 75a and 75a projecting rearward from the elastic pieces 75 and 75, respectively. 75a is provided. The elastic piece 75 has a cantilever shape that extends downward with the upper part as a base end by opening the periphery in a U-shape. Therefore, the tip can be elastically displaced in the front-rear direction starting from the upper part, and accordingly, the claw portion 75a can be drawn in the inner direction.

  On the lower edge of each side surface 72, 72, that is, in the vicinity of the bottom when configured as the holder 7, flange portions 76, 76 projecting outward are formed and used for positioning for attaching the holder 7 to the sliding door 2. be able to. Further, block-shaped first projecting portions 77 and 77 are formed in front of the flange portions 76 and 76 and are continuously lifted upward. The first projecting portions 77 and 77 have a shape that extends to the front side end surfaces of the side surfaces 72 and 72 and also protrudes forward, and is formed to have a high thickness and a high strength. The 1st protrusion part 77 becomes a shape corresponding to the 1st notch 84b formed in the sliding door 2, and it is possible to fit it closely.

  A rectangular parallelepiped second protrusion 78 extending in the width direction is formed at the center of the lower edge of the rear surface 71. The 2nd protrusion part 78 becomes a shape corresponding to the 2nd notch 85a formed in the sliding door 2. As shown in FIG.

  Together with the holder body 7a, the holder lid 7b constituting the holder 7 is formed by resin integral molding into the shape shown in FIGS. 16A is a front view showing the case where the holder lid 7b is viewed from the front, FIG. 16B is a rear view viewed from the reverse direction, and FIG. 16C is a side view. The figure is shown.

  The holder lid 7b functions as the front surface 74 when the holder 7 is configured, and is formed so that a cylindrical shaft portion 7b1 protrudes rearward below the center of the front surface 74 in the width direction. ing. Also, cylindrical shaft portions 7b2 and 7b2 are formed in the vicinity of both upper corners of the front surface 74 so as to protrude rearward. The shaft portions 7b2 and 7b2 are smaller in diameter and shorter than the shaft portion 7b1.

  In addition, a rib 7b3 extending in the vertical direction is formed at the upper portion of the center of the front surface 74 in the width direction. Furthermore, a rectangular notch 7b4 extending in the width direction corresponding to the protruding portion 73a is formed above the rib 7b3. In addition, rectangular notches 7b5 and 7b5 corresponding to the first protrusions 77 and 77 are formed at both lower corners of the front surface 74, respectively.

  The parts 4a, 7a and 7b are formed in this way, and the roller unit 4 is assembled as follows. As shown in FIG. 13, the holder body 7a and the holder lid 7b are attached from both sides with the roller 4a interposed therebetween.

  Specifically, the roller 4a is accommodated inside the holder body 7a so that the shaft hole 4a3 of the roller 4a is fitted to the outer periphery of the shaft portion 7a1 of the holder body 7a. Then, the holder lid 7b is attached to the holder body 7a so that the shaft portion 7b1 is fitted into the round hole 7a2 at the center of the shaft portion 7a1. At the same time, alignment is performed by fitting the two shaft portions 7b2 and 7b2 into the round holes 7a3 and 7a3. Since the shaft portions 7b1 and 7b2 are closely fitted in these round holes 7a2 and 7a3, the holder main body 7a and the holder lid 7b are fitted by fitting them while applying pressure in the front-rear direction. Can be integrated so that decomposition does not easily occur. In order to perform the integration, other means such as adhesion can be used.

  In addition to the above fitting, the notch 7b5 is fitted into the first projecting portion 77 and the notch 7b4 is fitted in correspondence with the overhanging portion 73a to increase positioning accuracy and contribute to maintaining strength so that disassembly does not easily occur. It is supposed to be.

  After the roller unit 4 is assembled in this way, as shown in FIG. 10, the holder 7 constituted by the holder main body 7a and the holder lid 7b holds the roller 4a rotatably in the internal space that is open downward. It will be in the state. In this state, a part of the small-diameter portion 4 a 1 together with the large-diameter portion 4 a 2 of the roller 4 a appears from below the holder 7.

  The roller unit 4 is attached to the sliding door 2 so as to be in the state of FIG. 11 through the state of FIG. Hereinafter, a specific attachment procedure will be described with reference to FIG.

  Attachment is performed by inserting the roller unit 4 into the opening 84a of the sliding door 2 from below. After the insertion, the roller unit is positioned by restricting the position of the holder 7 in a substantially U-shaped space opened upward by the front plate 81, the bottom plate 84, and the rear plate 85 constituting the sliding door 2. 4 can be fixed.

  The opening 84a has substantially the same shape as the holder 7 of the roller unit 4, and the position and direction of the holder 7 can be appropriately regulated inside. In the assembly, since the claw portion 75a of the elastic piece 75 is tapered upward, it is pushed inward along the inner surface of the rear plate 85 from the opening 84a, and does not become an obstacle to the insertion. When the insertion is made to an appropriate position, the claw portion 75a is engaged by protruding from the upper edge 85b of the rear plate 85 so as to be hooked, and the vertical positioning is performed.

  The second protrusion 78 is housed in the second notch 85a to restrict the position in the width direction, and the end surface of the second protrusion 78 is the upper edge of the second notch 85a. Abut. By doing in this way, it is possible to receive the main downward load generated in the sliding door 2 in the in-plane direction of the rear plate 85.

  Positioning in the vertical direction can also be performed by bringing the flange portion 76 and the bottom plate 84 into contact with each other or approaching each other. However, the upper surface of the second projecting portion 78 is in contact with the end surface serving as the upper edge of the second notch 85a before the flange portion 76 comes into contact with the bottom plate 84. Therefore, the collar portion 76 plays an auxiliary role of receiving the downward load by contacting the bottom plate 84 when a large downward load acts and the sliding door 2 is deformed.

  By attaching the sliding door 2 to the roller unit 4, the first projecting portion 77 formed in front of the flange portion 76 is also tightly inserted into the first notch 84 b formed in the bottom plate 84. At this time, the rear surface 77a of the first protrusion 77 comes into contact with the contact surface 84c, which is the rear end surface of the first notch 84b.

  Therefore, when a load acts on the roller unit 4 in the direction in which the lower end of the sliding door 2 moves backward, a pressing force acts between the first protrusion 77 and the contact surface 84c as the load. become. That is, the sliding door 2 bears a load in the in-plane direction of the bottom plate 84 via the contact surface 84c. As is well known, the plate material tends to be deformed with respect to a load in the out-of-plane direction, but has a property that hardly deforms with respect to a load in the in-plane direction. Therefore, as described above, the direction of receiving the load is the in-plane direction, so that there is no deformation around the opening 84a of the sliding door 2 to which the roller unit 4 is attached, and the relative position with respect to the roller unit 4. The relationship can be kept stable.

  The sliding door 3 to which the roller unit 4 is attached as described above can be attached by engaging the large-diameter portion 4a2 of the roller 4a into the lower rail 15a as shown in FIG. Further, the small-diameter portion 4a2 of the roller 4a comes into contact with the upper surface 15b of the lower rail member 15 so as to support the weight. At the time of installation, as described above, the slide unit 3 at the upper end of the sliding door is positioned as the standby position, and the projection position is used to engage with the upper rail 14a (see FIG. 2) for easy installation. It can be performed.

  With this configuration, the sliding door 2 can be smoothly moved in the left-right direction while being guided in the front-rear direction, and the storage space inside the housing 11 can be opened and closed. When a load in the front-rear direction is generated on the sliding door 2 due to movement in the left-right direction or the like, a large bending moment acts around the roller unit 4 at the lower end, and there is a larger amount around the attached opening 84a. A load will be generated. More specifically, referring to FIG. 11, when a load is applied to the front plate 81 of the sliding door 2 with its upper portion directed in the front-rear direction, the roller unit 4 supports the large-diameter portion 4a2 of the roller 4a within the lower rail 15a. Therefore, a large bending moment is generated around the roller unit 4, and a large load is applied between the front plate 81 and the rear plate 82 sandwiching the roller unit 4 in the front and rear directions so as to bend them apart. Will act.

  However, in the present embodiment, the above-described strong load can be received in the in-plane direction of the bottom plate 84 via the contact surface 84c, and therefore, the sliding door 2 is deformed around the attachment portion of the roller unit 4. There is nothing.

  Moreover, although the load to the front-back direction which arises in the above sliding doors 2 tends to generate | occur | produce by making the some sliding doors 2-2 interlock | cooperate via the link bar 24, it is set as said structure. It becomes possible to improve durability. That is, it is possible to suppress a problem that the frictional resistance is increased due to the roller unit 4 being unintentionally detached or rattling without causing deformation in the vicinity of the attachment site of the roller unit 4, thereby further improving usability. Can do.

  As described above, in the sliding door mounting structure of the present embodiment, the sliding unit 3 is provided on the upper end side of the sliding door 2 as the upper sliding means, and the sliding unit 3 is attached to the upper rail 14a to attach the sliding door 2. The slider unit 5 is configured so that the slider receiver 5 attached to the upper end of the sliding door 2 and the protruding piece 65 as a sliding portion set in part can be projected and retracted from the slider receiver 5. Of the slider receiving side first engagement portion 55 provided in the slider receiver 5 and the slider body side engaging portion 66a provided in the slider body 6. The slider receiving side first engaging portion 55 is configured to be elastically deformable in the vertical direction, and the slider receiving side first engaging portion 55 and the slider body side engaging portion 66a are engaged. By fitting, the protruding piece 65 protrudes upward from the upper end of the sliding door 2 so as to engage with the upper rail 14a, and the slider body 6 is elastically supported in the vertical direction with respect to the slider receiver 5. It is composed.

  Since the slider body 6 is elastically supported in the vertical direction because of such a configuration, the sliding door 2 is inclined and the upper portion of the protruding piece 65 of the slider body 6 contacts the upper surface 14b in the upper rail 14a. Even in the case of contact, the slider body 6 sinks downward, so that the load accompanying the contact can be reduced and the frictional resistance can be suppressed. In addition, since the entire sliding door 2 is elastically supported in the vertical direction while maintaining the engagement, the sliding door 2 is prevented from being inadvertently detached, and the shock caused by transportation or earthquake is absorbed. Thus, damage to the slide unit 3 can be prevented.

  Further, the slider receiving side first engaging portion 55 is formed as a first opening 55 provided on the rear surface 51 as an upstanding wall constituting the slider receiving 5, and a spring portion 55 a is provided at the lower edge of the first opening 55. The slider main body side engaging portion 66a is formed as a protruding portion 66a provided on the rear surface 61 as the standing wall 61 constituting the slider main body 6 at a position corresponding to the first opening 55, and the protruding portion 66a is formed. Since it is configured to engage with the first opening 55, it is possible to easily achieve both a specific engagement structure and a support structure for imparting elasticity.

  Further, since the spring portion 55a is configured so that the lower edge portion of the first opening 55 constituting the slider receiving side first engagement portion is formed as a leaf spring with the vertical direction as the thickness direction, The above functions can be realized with a simpler structure.

  Further, an elastic piece 66 is provided on the rear surface 61 of the slider body 6 as a standing wall and is extended downward in a cantilever manner with the upper side as a base end, and a protrusion 66a is provided on the base end side of the elastic piece. Since it is formed and the operation portion 66b is formed on the distal end side, an operation of bringing the protruding portion 66a and the first opening 55 into an engaged state or releasing the engagement is easily performed. It is possible.

  Further, since the slider receiver 5 includes the groove 51b extending in the vertical direction, the slider body 6 includes the convex guide portion 61a extending in the vertical direction regulated in the groove 51b. The operation of the slider main body 6 with respect to the slider receiver 5 can be restricted in directions other than up and down, and it is possible to improve the operational stability by suppressing the backlash of the slider main body 6.

  Further, the slider receiver 5 includes a second opening 56 as a slider receiving side second engaging portion below the first opening 55 as the slider receiving side first engaging portion. Since the two openings 56 and the projecting portion 66a as the slider main body engaging portion are engaged with each other, the projecting piece 65 can be set at a standby position where it is submerged from the upper end of the sliding door 2. Therefore, the slider main body 6 Since the protruding piece 65 of the sliding door 2 can take both the state where it protrudes from the upper end of the sliding door 2 and the state where it has sunk, it is possible to improve the convenience of attaching the sliding door 2 to the housing 11. .

  Further, since the slider receiver 5 and the slider main body 6 are each formed by resin integral molding, the slider receiver 5 and the slider main body 6 can be easily manufactured at low cost, and the elasticity of the resin can be used. It is possible to suitably realize the engagement and the elastic support structure.

  And the sliding door 2 of this embodiment can ensure intensity | strength also with respect to external force by operation stability, a vibration, etc. by providing the slide unit 3 which is an upper sliding means as mentioned above, and existing rails. Can also be effectively applied.

  Moreover, the storage device 1 of the present embodiment can improve the stability and durability of the opening / closing operation of the sliding door 2 by adopting a structure in which the sliding door 2 is attached through the above attachment structure.

  Furthermore, since it is provided with a plurality of sliding doors 2 and 2 and includes an interlocking mechanism that links these sliding doors 2 and 2 between an open state in which they are superposed on each other and a closed state in which the polymerization is substantially eliminated, more It can be suitably used by taking advantage of this.

  The specific configuration of each unit is not limited to the above-described embodiment.

  For example, in the above-described embodiment, the first opening 55 as the slider receiving side first engaging portion and the second opening 56 as the slider receiving side second engaging portion are both rear surfaces as the standing wall of the slider receiving 5. Corresponding to these, the projecting portion 66a as the slider main body side engaging portion is provided on the rear surface 61 as the standing wall of the slider receiver 6, but both are corresponding positions and in the vertical direction. It is only necessary to be provided on the upright walls that restrict the relative position, and both may be provided on the side surfaces 52 and 62 as the upright walls and engaged with each other.

  Further, although the spring portion 55a is formed by integral resin molding as a part of the slider receiver 5, it may be configured as a separate member such as fitting a metal plate spring at the same position. Further, the spring portion 55a is not limited to the form of a leaf spring, and can be changed to various forms such as a configuration in which a compression coil spring is used and a plate material that can be engaged with the protruding portion 66a is placed thereon. .

  Furthermore, the spring portion 55a only needs to be relatively elastically supported between the slider receiver 5 and the slider body 6, and instead of being provided on the slider receiver 5 side as in the above-described embodiment, the slider body 6 side May be provided. Or it is good also as a structure provided in both the slider receiver 5 side and the slider main body 6 side.

  In the above-described embodiment, the upper sliding means is configured as the slide unit 3 and the upper sliding member is the slider main body 6. However, the upper sliding means may be configured as a roller unit and the upper sliding member may be configured as a roller. Further, although the lower sliding means is configured as the roller unit 4 and the lower sliding member is the roller 4a, the lower sliding means may be configured as a slide unit and the lower sliding member may be configured as a slider.

  Other configurations can be variously modified without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Storage device 2 ... Sliding door 3 ... Slide unit (upper sliding means)
5 ... Slider receiver 6 ... Slider body (upper sliding member)
DESCRIPTION OF SYMBOLS 11 ... Housing 14a ... Upper rail 14b ... Upper surface (within upper rail) 51 ... Rear surface 51b ... Groove 55 ... 1st opening (slider receiving side 1st engaging part)
55a ... Spring portion 56 ... Second opening (slider receiving side second engagement portion)
61 ... Rear surface 61a ... Convex guide part 65 ... Protruding piece (sliding part)
66 ... elastic piece 66a ... claw part (protruding part, slider main body side engaging part)
66b ... operation unit

Claims (9)

An upper sliding means is provided on the upper end side of the sliding door, and the upper sliding means is engaged with the upper rail to attach the sliding door,
The upper sliding means includes a slider receiver attached to the upper end of the sliding door, and a slider body held inside the slider receiver so that the sliding portion set in part can protrude and retract from the slider receiver.
At least one of the slider receiving side first engaging portion provided in the slider receiver and the slider main body side engaging portion provided in the slider main body is configured to be elastically deformable in the vertical direction. By engaging the slider receiving side first engaging part and the slider main body side engaging part, the sliding part protrudes upward from the upper end of the sliding door and engages with the upper rail, and the slider main body is a slider. It is configured to be elastically supported in the vertical direction with respect to the receiver,
The slider receiving side first engaging portion is formed as an opening provided in a standing wall constituting the slider receiving, and an elastic spring portion is provided at a lower edge of the opening,
The slider main body side engaging portion is formed as a protrusion provided on a standing wall constituting the slider main body at a position corresponding to the opening, and the protrusion is configured to be engaged with the opening.
The sliding door mounting structure, wherein the elastic spring portion is formed as a flat plate spring having a lower edge portion of an opening constituting the slider receiving side first engagement portion with a vertical direction as a thickness direction. Mounting structure of the sliding door according to claim 1, characterized in that provided by integrally molding the elastic spring part to the lower edge of the opening. An elastic deformation piece that extends downward in a cantilevered manner with the upper side as a base end portion is provided on the standing wall of the slider body, and the protrusion is formed on the base end side of the elastic deformation piece. The sliding door mounting structure according to claim 1, wherein an operation portion is formed on a distal end side. The slider body includes a groove extending in the vertical direction, and the slider body includes a convex guide portion extending in the vertical direction regulated in the groove. The sliding door mounting structure described in any of the above. The slider receiver includes a slider receiving side second engaging portion below the slider receiving side first engaging portion, and instead of the slider receiving side first engaging portion, the slider receiving side second engaging portion and the The sliding door installation according to any one of claims 1 to 4, wherein the slider main body side engaging portion is engaged so that the sliding portion can be in a standby position where the sliding portion sinks from the upper end of the sliding door. Construction. The sliding door mounting structure according to any one of claims 1 to 5, wherein each of the slider receiver and the slider body is formed by resin integral molding. A sliding door comprising the upper sliding means according to the mounting structure according to claim 1. A storage device comprising a sliding door attached to a position for opening and closing the storage space by the mounting structure according to claim 1. 9. A storage apparatus according to claim 8, comprising a plurality of sliding doors, and an interlocking mechanism for interlocking the sliding doors between an open state where they overlap each other and a closed state where the polymerization is substantially eliminated. .

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