JPH0720879U - Attachment structure of drawer support rail to desk top - Google Patents

Abstract

(57) [Abstract] [Purpose] When mounting a support rail that supports the drawer in a freely movable manner on the lower surface of the desk top plate, it does not reduce the workability and the mounting strength, and does not require time and effort for manufacturing and inventory control. Reduce. [Structure] A front locking claw 8 provided at a front portion of a support rail 6 is fitted into a front engagement hole 9 formed in a front reinforcing frame 2 and locked, and a rear locking claw provided at a rear portion of the support rail 6. 11 is fitted in the rear engaging hole 15 formed in the rear reinforcing frame 3 and locked. One or both of the front locking claws 8 and the rear locking claws 11 are provided on the left and right to prevent rattling in the left-right direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure in which a support rail for supporting a drawer arranged on the lower surface of a desk top plate is attached to the lower surface of the desk top plate.

[0002]

[Prior art]

 As a structure in which a drawer support rail is attached to the lower surface of a desk top plate, Japanese Patent Publication No. 58-16671 as a prior art discloses a case where a plurality of left and right reinforcing frames are provided on the lower surface of the top plate at appropriate front and rear intervals. ,. The upper surfaces of the rear portions of the pair of left and right support rails are connected by a connecting rod, and the rear surface of the connecting rod is brought into close contact with the front surface of the reinforcing frame located at the rear portion of the top plate. Front hook-like front locking claws are projected upward on the front upper surfaces of both the left and right support rails, and these front locking claws of both left and right support rails are attached to the lower surface of the front reinforcement rod on the top plate. Insert into the drilled locking hole from diagonally behind. A dowel-shaped rear locking claw is projected on the rear surface of the connecting rod, and a rear locking hole corresponding to the rear locking claw is formed on the front surface of the reinforcing frame to which the connecting rod is closely attached. A configuration is described in which the rear locking claw is fitted and engaged with the rear locking hole of the reinforcing frame by pressing the connecting rod upward with the locking claw fitted in the front engaging hole. There is.

[0003]

[Problems to be solved by the device]

 According to this prior art, the support rail can be attached to the desk top panel by a one-touch operation of inserting the front locking claw into the front locking groove hole of the reinforcing frame and then pressing the connecting rod upward. Therefore, there is an advantage that the desk assembling work can be efficiently performed.

However, in spite of having such an advantage, in this prior art, a pair of left and right support rails must be connected in advance by connecting rods having different lengths according to the size of the drawer, in other words, However, since it was necessary to prepare a large number of sets of left and right support rails connected by the connecting rod, there was a problem that manufacturing and inventory control would be time-consuming.

An object of the present invention is to prevent this problem without lowering the mounting strength of the support rail.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, the present invention is to fix a plurality of left and right longitudinal reinforcing frames to the lower surface of the desk top plate at appropriate intervals in the front and rear, and to support the drawer movably back and forth under the desk top plate. The upper and lower sides of the longitudinal support rails are formed into a flat surface so as to be in close contact with the lower surfaces of the plurality of reinforcing frames, and the reinforcing frame at the portion of the reinforcing frame that overlaps the front part of the supporting rails has a downward opening or The front engaging hole of the rear opening is formed in the portion of the reinforcing frame that overlaps the rear portion of the support rail, and the rear engaging hole of the downward opening or the front opening is formed, while the front engaging hole of the support rail is formed. Front locking claws for the front engaging holes, rear locking claws for the rear engaging holes at the rear of the support rail, and the front and rear locking claws for the front and rear engagement with the support rail in close contact with the lower surface of the tabletop. Provided so that it will fit into the stop hole and engage to hold the support rail in place. One, the either or both of said front locking pawl and the rear engaging claws, and a configuration in which each of a plurality of right and left in front view of the desk top panel.

[0007]

[Operation and effect of the device]

 With this configuration, the support rails can be attached to the desk top simply by fitting the front and rear locking claws into the front and rear engaging holes of the reinforcing frame of the desk top, which improves the workability of the desk assembly work. It never drops. Also, by providing at least one of the front and rear locking claws on the left and right sides of the support rail, the support rail is fixed to the desk top plate at multiple places on the left and right while it is in close contact with the bottom surface of the desk top plate. Therefore, the drawer can be firmly supported without being easily rattled by the external force from the left and right directions.

Since the support rails are individually attached to the lower surface of the desk top plate, the same kind of support rails can be used for various desk top plates having different widths of the drawer. The labor of manufacturing and inventory control can be reduced. Therefore, according to the present invention, there is an effect that the labor of manufacturing and inventory control can be reduced without lowering the assembly efficiency of the desk and the supporting strength of the drawer.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 11 show the first embodiment. In these figures, reference numeral 1 indicates a desk top plate, and the bottom surface of the desk top plate 1 is clearly shown in FIG. As shown, the front reinforcing frame 2 located at the front end, the rear reinforcing frame 3 located at the rear end, and the plurality of intermediate reinforcing frames 4 located between the front and rear reinforcing frames 2 and 3 are fixed to each other. The front edge member 5 is fixed to the front end of the front reinforcing frame 2.

Reference numeral 6 is a support rail having a U-shaped cross section for supporting the side edge of the drawer 7 (see FIG. 8). The support rail 6 has an upper surface plate 6a slightly above the upper surface plate 6a. A mounting plate 6b which is located above and extends horizontally is integrally connected so as to extend in the front-rear direction. The mounting plate 6b and the intermediate reinforcing frame 4 of the desk top plate 1 are connected to each other. It is set so as to come into close contact with the lower surface of the rear reinforcing frame 5.

On the upper end of the front side portion of the side plate 6c of the support rail 6 and the side edge of the front side portion of the mounting plate 6b, beak-shaped front locking claws 8 are projected upward in a side view, respectively. On the rear surface of the front reinforcement frame 2, a pair of left and right front engagement members are arranged so that the front locking claws 8 are fitted and engaged with the mounting plate 6b in close contact with the intermediate reinforcement frame 4 and the rear reinforcement frame 3. A joint hole 9 is provided.

In order to enable insertion of the front locking claw 8 into the front engagement hole 9, a portion of the support rail 6 near the front end of the upper surface plate 6a is cut out, and for the same reason, A portion of the support rail 6 near the front end of the side plate 6c is cut in a slanting forward slope. A mounting hole 10 having a rectangular shape in plan view, which is opened toward the step 6d, is formed in a portion of the mounting plate 6b of the support rail 6 that overlaps with the rear reinforcing frame 3, and the mounting hole 10 has a composite hole. After being made of resin, the locking claw 11 is fitted and mounted.

The rear locking claw 11 integrally connects the front and rear locking pieces 11a and the bifurcated intermediate locking piece 11b located between the front and rear locking pieces 11a at an upper end portion, and A gap 12 is formed between the front and rear locking pieces 11a and the intermediate locking piece 11b. Therefore, the front and rear locking pieces 11a move toward each other against their elasticity so that the distance between them becomes narrow. Further, the bifurcated intermediate locking pieces 11b are also deformed against their elasticity so that the distance between them is narrowed.

A horizontal locking groove 13 is formed at a lower end portion of the front and rear locking pieces 11 a of the rear locking claw 11 so as to be fitted on an inner peripheral edge of the mounting hole 10. A protrusion 14 is provided at a portion of the peripheral edge near the step 6d to prevent the stopper from coming off. Therefore, with the lower surface of the rear locking claw 11 being in contact with the upper surface plate 6a of the support rail 6, the locking groove 13 of the front and rear locking pieces 11a is brought into contact with the protrusion 14 to secure the rear locking claw 11 in place. When it is pushed in from the lateral direction, the front and rear locking pieces 11a are elastically deformed against its elasticity, and then fit into the mounting holes 10 and engage with each other, and the rear locking claws 11 are attached to the support rails 6 so as not to come off. .

Further, the intermediate engaging piece 11b of the rear engaging claw 11 is adapted to be elastically fitted and engaged with the rear engaging hole 15 of the downward opening formed in the rear reinforcing frame 3. The claw portion 16 is formed. The rear locking claw 11 is formed in an upper constricted shape in a front view and a side view. The support rail 6 is manufactured by punching a metal plate into a shape as shown in FIG. 4 and then bending the metal plate along a plurality of bending lines 17. Reinforcing bulges 18 are formed on the side plate 6c of the support rail 6 below the front locking claw 8 and on the front side of the mounting plate 6b.

In the above configuration, in order to attach the support rail 6 to the desk top plate 1, after the rear locking claw 11 is attached to the location of the attachment hole 10 of the support rail 6 in the above-described manner, As shown in FIG. 4, the support rail 6 is tilted backward, and the front locking claw 8 is fitted into the front engagement hole 9 from the rear side, and then the front locking claw 8 is used as a fulcrum. It suffices to push the rear part upward and fit the rear locking claw 11 into the rear engagement hole 15 of the rear reinforcing frame 3 against the elasticity of the intermediate locking piece 11b as shown in FIG.

Then, as shown in FIGS. 9 and 10, the claw portion 16 of the intermediate locking piece 11 b of the rear locking claw 11 is brought into contact with the upper surface of the inner peripheral edge of the rear engagement hole 15 to support the support rail. Since the mounting plate 6b in 5 and the rear reinforcing frame 3 are sandwiched by the rear locking claws 11, the support rails 6 are fixed to the desk top plate 1 so as not to fall off. In this mounted state, by providing the two front locking claws 8 on the left and right, the support rail 6 is fixed to the front reinforcing frame 2 at the two left and right portions, so that the support rail 6 is Therefore, even if an external force in the left-right direction acts, it does not easily rattle, and therefore, it is possible to prevent a decrease in the support strength of the drawer 7.

The drawer 7 is formed with a guide portion 7a which is fitted in the inside of the support rail 6 and extends in the front-rear direction, and a slider (which slides in contact with the inner surface of the support rail 6) is provided at the rear end of the guide portion 7a. (Not shown). In the above embodiment, the mounting plate 6b of the support rail 6 is such that the stopper portion 19 that contacts the front surface of the intermediate reinforcing frame 4 adjacent to the front reinforcing frame 2 is connected to the front locking claw 8. Since the support rail 6 is bent and formed in this manner, it is possible to reliably prevent the support rail 6 from rattling in the front-rear direction.

Further, as in the embodiment, when the supporting rail 6 is provided with the mounting plate 6b having a stepped shape and the mounting plate 6b is provided with the front locking claws 8 and the rear locking claws 11, the supporting rail 6 is supported. There is an advantage that the support rail 6 can be easily attached to the desk top 1 without impairing the guide function of the drawer 7. FIG. 12 shows a second embodiment showing a modified example of the rear locking body 11 when the rear locking claw 11 is formed separately as in the first embodiment. Then, the mounting hole 10 is formed in a mere rectangular shape in a plan view, and the rear locking claw 11 is attached to the support rail 6 by inserting the rear locking claw 11 into the mounting hole 10 from the lower surface of the mounting plate 6b. It is a thing.

FIG. 13 shows that when the front locking claw 8 is first fitted into the front engagement hole 9 as in the first embodiment, the front locking claw 8 is tapered. It is a third embodiment formed into a shape. Also in this embodiment, the stopper 19 is connected to the front locking claw 8. The stopper portion 19 may be formed separately from the front locking claw 8 in the front and back.

As shown in FIGS. 14 and 15, when the front engaging claw 8 is first fitted into the front engaging hole 9 as in the first embodiment, the front engaging hole 8 is This is a fourth embodiment in which the lower surface of the front reinforcing frame 2 is provided, and in this embodiment, the front end portion of the mounting plate 6b is brought into contact with the lower surface of the front reinforcing frame 2. 16 to 18 show a fifth embodiment showing a modified example of the front locking claw 6, and in this embodiment, the front locking claw 8 is bent so as to have a hook shape facing forward. Is forming.

Even when the front engaging hole 9 is formed in the rear end surface of the front reinforcing frame 2 as in this embodiment or the first embodiment, the front end portion of the mounting plate 6b is not attached to the front reinforcing frame 2. You may make it contact with the lower surface. In the sixth embodiment shown in FIGS. 19 to 24, the front locking claw 8 is formed in a sideways hook shape in a front view, while the rear locking claw 20 is formed in a rearward hook shape, and the rear locking claw is first formed. After fitting 20 into the rear engaging hole 15, inserting the front locking claw 8 into the front engaging hole 9, and horizontally rotating the support rail 6 with the rear locking claw 20 as a fulcrum in that state. Thus, the left and right front locking claws 8 are fitted into the front engagement holes 9 to be engaged.

In the sixth embodiment, the left and right front engagement holes 9 are formed in a fan shape at one end thereof so that the front locking claw 8 can be easily inserted. Further, an upward protrusion 21 (dough) is cut and formed on the mounting plate 6b, and the protrusion 21 is formed in the front reinforcement frame 2 in a state where the front locking claw 8 is fitted into the front engagement hole 9 and is fully cut. The support rail 6 is held so as not to be displaced in the left-right direction by being fitted in the hole 22.

FIG. 25 shows a seventh embodiment in which a rear engaging hole 15 is formed in the front surface of the rear reinforcing frame 3 and a rear locking claw 11 is fitted into the rear engaging hole 15. In each of the above embodiments, two front locking claws are provided on the left and right, but a plurality of rear locking claws may be provided on the left and right, and a plurality of front and rear locking claws may be provided on the left and right. Is also good.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a first embodiment.

FIG. 2 is an exploded perspective view showing a mounting state of a rear locking claw formed separately from a support rail.

FIG. 3 is a partial perspective view of the desk top plate turned upside down.

FIG. 4 is a development view of a support rail.

FIG. 5 is a diagram showing a procedure of attaching a support rail.

FIG. 6 is a view showing a state in which a support rail is attached.

FIG. 7: VII of FIG. 6 with the front reinforcement frame shown in phantom
It is a VII plan view.

8 is a VIII of FIG. 6 with the front reinforcement frame shown in phantom
It is a VIII sectional view.

FIG. 9 is a front cross-sectional view showing a mounted state of a rear locking claw.

10 is a sectional view taken along line IX-IX of FIG.

11 is a plan sectional view taken along the line XI-XI of FIG.

FIG. 12 is a view showing a second embodiment, (a) is a longitudinal sectional view,
(B) is a bb sectional view of (a).

FIG. 13 is a side sectional view showing a third embodiment.

FIG. 14 is a side sectional view showing a fourth embodiment.

15 is a view of FIG. 14 with the front reinforcing frame shown in phantom.
It is an XV-XV view.

FIG. 16 is a main-portion plan view showing a fifth embodiment.

17 is a sectional view taken along line XVII-XVII of FIG.

18 is a view taken along line XVIII-XVIII in FIG. 16.

FIG. 19 is a perspective view showing a sixth embodiment.

FIG. 20 is a plan sectional view of a sixth embodiment in an attached state.

FIG. 21 is an enlarged view of a main part of FIG.

22 is a sectional view taken along line XXII-XXII of FIG. 20.

23 is a sectional view taken along line XXIII-XXIII of FIG. 21.

24 is a sectional view taken along line XXIV-XXIV of FIG.

FIG. 25 is a cross-sectional view of essential parts showing a seventh embodiment.

[Explanation of symbols]

 1 Desk Top Plate 2 Front Reinforcement Frame 3 Rear Reinforcement Frame 4 Intermediate Reinforcement Frame 6 Support Rail 6b Mounting Plate 8 Front Engagement Claw 9 Front Engagement Hole 11,20 Rear Engagement Claw 15 Rear Engagement Hole

Claims (1)

[Scope of utility model registration request] 1. An upper surface of a front-rear longitudinal support rail for fixing a plurality of left and right longitudinal reinforcing frames to the lower surface of the desk top plate at appropriate intervals in the front-rear direction and for supporting a drawer movably back and forth below the desk top plate. Is formed on a flat surface so as to be in close contact with the lower surface of the plurality of reinforcing frames, and a front engaging hole of a downward opening or a rearward opening is formed in the reinforcing frame of a portion of the reinforcing frame overlapping the front portion of the support rail, A rear engaging hole is formed in a portion of the reinforcing frame that overlaps with the rear portion of the support rail, and a rear engaging hole is formed in the front opening of the supporting rail. A rear locking claw for the rear engagement hole is provided at the rear portion of the support rail, and the front and rear locking claws are fitted into and engaged with the front and rear locking holes while the support rail is in close contact with the lower surface of the desk top plate. Is provided so as not to fall off, and the front engaging claw and the rear engaging Either one or both, the mounting structure of the drawer support rails on the left and right as viewed from the front of the desk top panel is provided by a plurality, the desk top plate, characterized in that out of the pawl.