JP4974908B2 - Synthetic resin slide rail device - Google Patents

Description

  The present invention relates to a slide rail device made of synthetic resin that can appropriately hold drawers such as a drawer tray and a slide shelf that are slidably housed in a unit case body provided in a cabinet for electrical and electronic equipment.

  The conventional slide rail device is provided with a stopper for preventing movement in the direction of being pulled out from the storage position due to an unexpected external force or the like during storage. However, this is merely what holds the drawer tray in the storage position (see, for example, Patent Document 1).

For this reason, after pulling out the drawers from the unit case body, it is necessary to provide a separate return prevention mechanism that keeps the drawers in the drawer position and prevents them from being inadvertently returned to the storage position. Moreover, miniaturization is difficult.
JP 2001-204564 A

  The present invention has been made to solve the above-described problems, and can reduce the number of parts to prevent the drawers from inadvertently returning to the storage position from the unit case body, and can be held at a predetermined extraction position. At the same time, a slide rail device made of synthetic resin that can be appropriately held even in the storage position is provided.

The slide rail device made of synthetic resin according to the present invention is a slide rail device comprising at least a first rail and a second rail that is slidable on the first rail. The first claw portion engages when the second rail is in the storage position on one side surface of the second rail facing the first claw portion. A basic structure is provided with one locking portion and a contact portion with which the first claw portion abuts when in the pulled-out position .

Then , the third rail is slidably formed on the other side surface of the second rail, and the second claw portion is provided on one side surface of the third rail so as to bend toward the other side surface, and the second claw portion faces. It is assumed that a second locking portion is provided on the other side of the second rail to engage the second claw when the third rail is in the storage position . Furthermore, it is good also as what attached the 1st nail | claw part and the 2nd nail | claw part so that attachment or detachment was possible from the other side in the attachment hole provided in the 1st rail and the 3rd rail, respectively.

  The above-described slide rail device made of synthetic resin according to the present invention is a slide rail device comprising at least a first rail and a second rail which is slidable on the first rail. One claw is provided so as to bend to the other side, and the first claw engages with one side of the second rail facing the first claw when the second rail is in the storage position. In addition to providing the first locking portion to be provided and the contact portion with which the first claw portion abuts when in the extraction position, the drawers are not moved by an unexpected external force, etc. Since the first claw portion can hold the drawers at the extraction position and the holding position, it has an advantage that the number of parts can be reduced.

Further, the third rail is slidably formed on the other side surface of the second rail, and the second claw portion is provided on one side surface of the third rail so as to bend toward the other side surface, and the second claw portion faces. The drawer tray 2 is completely disengaged from the case body 1 by providing a third locking portion that engages with the second claw when the third rail is in the storage position on the other side of the second rail. The drawers are not moved by unexpected external force or the like, and the drawers are pulled out and held by the first and second claws. Therefore, the number of parts can be reduced.

  Furthermore, since the first claw and second claw are made detachable from the other side to the mounting holes provided in the first rail and the third rail, respectively, it is possible to manufacture the rail body easily. Cost can be reduced.

Next, a preferred embodiment of the present invention will be described by applying it to the illustrated drawer unit.
Reference numeral 1 denotes a case main body of the drawer unit, and reference numeral 2 denotes a drawer tray which is a drawer that is slidably stored in the case main body 1.
The fixed rail 3 made of synthetic resin, which is the first rail, is provided on the inner surfaces of the rail mounting plate portions 11, 11 of the case body 1, and the outer surfaces of the rail mounting plate portions 21, 21 of the drawer tray 2 are provided on the outer surfaces. A moving rail 4 made of synthetic resin, which is a rail No. 3, is attached.
An intermediate rail 5 made of synthetic resin as a second rail is interposed between the fixed side rail 3 and the moving side rail 4 so that the drawer tray 2 is completely separated from the case body 1. The upper surface is opened and wiring work is easy.

  The fixed rail 3 and the movable rail 4 have the same structure as shown in FIGS. 10 and 11, respectively. That is, the fixed-side rail 3 and the moving-side rail 4 are groove-shaped provided with plate portions 81a and 81a vertically opposed to the upper and lower ends of the shallow groove portion 81 formed on one side surface 8a of the horizontally long plate-shaped rail body 8. A rail portion 80 is formed, and a first claw portion 6 (second claw portion 7) is provided on one side surface 8a of the rail body 8 so as to bend toward the other side surface 8b. Then, the side surfaces 8a are opposed to each other, and are arranged symmetrically with respect to the intermediate rail 5 to form a slide rail device.

  As shown in FIGS. 12 and 13, the intermediate rail 5 has flange portions 50 a and 50 a that engage with flange portions 81 a and 81 a that are vertically opposed to the fixed rail 3 and the movable rail 4 on both sides. The flange-like rail parts 50 and 50 stretched up and down are provided. Then, as shown in the schematic diagram of FIG. 14, the flange-like rail portions 50, 50 formed on both surfaces of the intermediate rail 5 are slidable into the groove-like rail portions 80, 80 of the fixed side rail 3 and the moving side rail 4. To be engaged.

  Further, a surface of the intermediate rail 5 facing the fixed rail 3 is a first locking recess that is a first locking portion with which the first claw portion 6 is engaged when the drawer tray 2 is in the storage position. 51a is provided, and a first locking convex portion 51b, which is a second locking portion with which the second claw portion 7 engages when it is in the storage position on the surface facing the moving side rail 4, is provided. Is provided. The first locking concave portion 51a and the first locking convex portion 51b are, as shown in FIGS. 12 and 13, a first claw portion 6 and a second claw portion that are provided in series on both sides of the intermediate rail 5 in the front-rear direction. 7 is formed on the bottom 51e of the lateral groove 51 in which the slidable fitting 7 is slidably connected to the inclined bank portions 51c and 51d for bending the first claw portion 6 and the second claw portion 7. Further, a second locking convex portion 51f, which is a contact portion with which the first claw portion 6 contacts when the intermediate rail 5 is in the pulled-out position, is provided at the base end portion on one side of the intermediate rail 5. Moreover, the 3rd latching convex part 51g mentioned later is formed in the front-end | tip part of the other side surface side.

  In the slide rail device having such a structure, as shown in FIG. 2, when the drawer tray 2 is in the storage position, the first claw portion 6 is engaged with the first locking recess 51a. When pulling out 2 from the case body 1 of the unit, when the drawer tray 2 begins to move in the pull-out direction, the wall surface of the first locking recess 51a interferes with the first pawl portion 6, so that the first pawl portion 6 The drawer tray 2 is slidable by bending to the other side surface of the fixed rail 3 to disengage from the first locking recess 51a.

  As shown in FIG. 6, when the drawer tray 2 is pulled out to the pull-out position, the first claw portion 6 is in contact with the second locking convex portion 51 f formed at the base end portion of the intermediate rail 5. The second locking projection 51f has a gentle inclined surface along the longitudinal direction of the intermediate rail 5, and the first claw portion 6 abuts while gradually receiving resistance and reducing the slide speed before engagement.

  Therefore, when the first claw portion 6 is in the storage position, it functions as a holding device for preventing the first claw portion 6 from moving in the direction of being pulled out of the storage position due to an unexpected external force or the like, and is held in the pull-out position. Also, it plays the role of a return prevention mechanism that prevents the careless return to the storage position.

  Note that flange-like rail portions 50, 50 formed on both surfaces of the intermediate rail 5 by forming end portions facing the front and rear of the groove-like rail portion 80 of the fixed rail 3 and the moving rail 4 in the narrow portion 80 a. The ends facing the narrow portion 80a are formed in the wide end portions 50b and 50b, and the wide end portion 50b serves as a stopper that contacts the narrow portion 80a. The stopper allows the moving rail 4 and the intermediate rail 5 to slide sequentially, and prevents the intermediate rail 5 from being detached from the fixed rail 3 and the moving rail 4 when pulled out.

  Similarly to the fixed side rail 3, the second claw portion 7 is provided on one side surface of the moving side rail 4 so as to bend toward the other side surface, and the movement is performed on the other side surface of the intermediate rail 5 facing the second claw portion 7. A first locking projection 51b is provided to which the second claw portion 7 is engaged when the side rail 4 is in the storage position.

  In such a structure, as shown in FIG. 2, when the drawer tray 2 is in the storage position, the second claw portion 7 is engaged with the first locking projection 51b. When the drawer tray 2 starts to move in the drawing direction when the drawer body 2 is pulled out, the wall surface of the first locking projection 51b interferes with the second claw portion 7 so that the second claw portion 7 moves to the moving side. The drawer 4 is slidable by bending toward the other side of the rail 4 and disengaging from the first locking projection 51b.

  In this embodiment, the narrow end portion 80a on the rear end side of the groove-like rail portion 80 of the moving side rail 4 is formed in an arc shape, and the wide end portion of the flange-like rail portion 50 of the intermediate rail 5 in contact with the narrow portion 80a. Since 50c is formed in a disc shape, as shown in FIGS. 20-22, the arcuate narrow portion 80a and the disc-like wide end portion 50c are connected in a pivotable state. The drawer tray 2 fixed to the moving-side rail 4 can be tilted forward and inclined, so that wiring work to the drawer tray 2 and the like are easier.

That is, as shown in FIG. 7, when the drawer tray 2 is pulled out to the pull-out position, the second claw portion 7 has one end on the third locking convex portion 51 g formed at the tip on the other side of the intermediate rail 5. After the engagement, the drawer tray 2 can be rotated by being pulled out of the lateral groove 51 by further pulling out the drawer tray 2.
Therefore, the operator can make the drawer tray 2 rotatable after being aware of the resistance caused by the interference between the second claw portion 7 and the third locking projection 51g immediately before the drawer tray 2 rotates. Etc. are not damaged.

  Further, when the drawer tray 2 is stored again, the second claw portion 7 is made to coincide with the lateral groove portion 51 of the intermediate rail 5 and the moving side rail 4 is slid to the intermediate rail 5. At this time, after the second claw portions 7 of the moving side rails 4 and 4 attached to both sides of the drawer tray 2 are brought into contact with the third locking convex portion 51g, the drawer tray is moved simultaneously in the left and right directions. The moving rail 4 is not forcibly engaged with the intermediate rail 5 while the slide rail device 2 is tilted, and the slide rail device is not damaged.

  Further, on one side surface and the other side surface of the intermediate rail 5, an inclined bank is formed on the front side where the first claw portion 6 and the second claw portion 7 of the first locking concave portion 51 a and the first locking convex portion 51 b provided are engaged. 51c and 51d are provided, and the first claw portion 6 and the second claw portion 7 are bent to the fixed rail 3 side or the moving rail 4 side by the inclined bank portions 51c and 51d, and then the first locking recess 51a or the first locking projection 51b is engaged, and the first claw portion 6 and the second claw portion 7 are bent by the inclined bank portions 51c and 51d, so that resistance is gradually received before the engagement. Thus, the first claw portion 6 and the second claw portion 7 are not likely to be damaged because they are engaged while reducing the slide speed.

  The fixed side rail 3 and the moving side rail 4 are provided with a plurality of hook-like mounting claws 82 on the other side surface 8b of the horizontally long plate-like rail body 8, and are elastic pieces that bend toward the one side surface 8a of the rail body 8. 83 is provided by a U-shaped cut 83a, and an engagement protrusion 84 is provided on the back side of the elastic piece 83. The fixed side rail 3 and the moving side rail 4 are configured such that the attachment claws 82 are engaged with the attachment holes provided in the rail attachment plate portion 11 or the rail attachment plate portion 21 provided on both sides of the case body 1 and the drawer tray 2. The engagement protrusion 84 is fitted into the engagement hole, and the rear surface thereof is attached in contact with the rail attachment plate portion 11 or the rail attachment plate portion 21.

  The 1st nail | claw part 6 shall be attached to the attachment hole 9 provided in the rail main body 8 of the fixed side rail 3 from the other side 8b side of the rail main body 8 so that attachment or detachment is possible. That is, a plurality of projecting pieces 9a are provided inwardly on the other side surface 8b side of one of the opposing edge portions 91, 91 of the rectangular mounting hole 9 provided in the horizontally long plate-like rail body 8, and the other opposing side. Assume that locking step portions 9b and 9b are provided on one side surface 8a of the hole edges 92 and 92, respectively.

  The first claw portion 6 is provided with a claw arm portion 60a that bends toward the other side surface 8b of the rail body 8 on the front surface side of the substrate body 60. An engaging piece 6a is provided for engaging with the protruding piece 9a, and one of the other opposing edges 62, 62 is provided inwardly shorter than the end edge of the corresponding mounting hole 9 to form an engaging surface 62a. The movement preventing piece 62b that engages with the edge of the locking step portion 9b is formed on the front side of the mating surface 62a. The other is formed as a wide engaging surface 62c. Then, the locking piece 6a of the substrate body 60 is inserted between the protruding piece 9a of the mounting hole 9, and the engaging surfaces 62a and 62c of the other opposing edges 62 and 62 of the substrate body 60 are locked to the locking step portion. The substrate main body 60 is slid by engaging with 9b, and the movement preventing piece 62b provided on one engagement surface 62a is engaged with the edge of the locking step portion 9b.

Due to such a structure, after the first claw portion 6 is mounted in the mounting hole 9, the substrate body 60 of the first claw portion 6 is held by the protruding piece 9a and the locking step portion 9b of the mounting hole 9. It will be. In addition, the other engagement surface 62c of the opposing edge 62 abuts the corresponding hole edge 92, and the movement preventing piece 62b formed on the one engagement surface 62a engages with the edge of the locking step portion 9b. Once the first claw portion 6 is mounted in the mounting hole 9, the movement preventing piece 62b is pushed out to the other side of the rail body, and the engagement between the movement preventing piece 62b and the edge of the locking step portion 9b is released. As long as there is no, the 1st nail | claw part 6 does not remove | deviate from the rail main body 8. FIG. That is, when the rail body 8 is attached to the rail attachment plate portion 11, the rail attachment plate portion 11 is located on the other side of the rail body 8. Therefore, the first claw portion 6 is brought into contact with the rail body due to a slide impact or the like. It will not deviate from 8. Further, by forming the rail body 8 and the first claw portion 6 as separate members, the rail body 8 can be easily molded, thereby reducing the manufacturing cost.
Since the moving side rail 4 has the same structure as the fixed side rail 3, the mounting of the second claw portion 7 and the moving side rail 4 is the same as described above.

The partial notch perspective view shown in the state which accommodated the drawers of embodiment. The A partial enlarged view of FIG. The perspective view shown in the state which pulled out drawers of embodiment. B partial enlarged view of FIG. The partial notch perspective view shown in the state which pulled out the drawers of embodiment. C partial enlarged view of FIG. The D partial enlarged view of FIG. The partially cutaway sectional view showing the fixed rail (moving rail) used in the embodiment. The partial cutaway sectional view showing the important section of the fixed rail (moving rail) used for the embodiment. The perspective view which shows the fixed rail (moving rail) used for embodiment from the one side surface side. The perspective view which shows the fixed rail (moving rail) used for embodiment from the other side surface side. The perspective view which shows the intermediate rail used for embodiment from the one side surface side. The perspective view which shows the intermediate rail used for embodiment from the other side surface side. Schematic which shows the engagement state of a fixed rail, a movement rail, and an intermediate rail. The perspective view which removes a nail | claw part from the fixed rail (moving rail) used for embodiment, and shows from one side. The perspective view which removes a nail | claw part from the fixed rail (moving rail) used for embodiment, and shows from the other side surface side. The perspective view which shows the nail | claw part attached to a fixed rail (moving rail) so that attachment or detachment is possible from one side. The perspective view which shows the nail | claw part attached to a fixed rail (moving rail) so that attachment or detachment is possible from the other side surface side. The partially cut-away front view showing the fixed rail, the intermediate rail, and the moving rail extended. The partially cutaway front view which shows a fixed rail, an intermediate rail, and a moving rail extended and pivoting a moving rail. The perspective view which expands a fixed rail, an intermediate rail, and a moving rail, and pivots a moving rail. E part enlarged view of FIG.

Explanation of symbols

3 Fixed side rail 4 Moving side rail 5 Intermediate rail
51a First locking recess
51b 1st latching convex part 6 1st nail | claw part 7 2nd nail | claw part

Claims (2)

In a slide rail device comprising at least a first rail and a second rail that is slidable on the first rail, a first claw portion is provided on one side surface of the first rail so as to bend to the other side surface, and Provided on one side surface of the second rail facing the first claw portion is a first locking portion that engages with the first claw portion when the second rail is in the retracted position, and is in the drawer position. A slide rail device made of synthetic material and provided with an abutment portion against which the first claw portion abuts , wherein a third rail is slidably formed on the other side of the second rail, The second claw portion is provided on one side surface of the rail 3 so as to bend toward the other side surface, and when the third rail is in the storage position on the other side surface of the second rail facing the second claw portion, composites fat made of slide, characterized in that the second claw portion is provided with the second engagement portion which engages Doreru apparatus.   The slide rail device made of synthetic material fat according to claim 1, wherein the first claw portion and the second claw portion are detachably attached to attachment holes provided in the first rail and the third rail, respectively, from the other side.

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