Drawer structure of store fixture and store fixture

Abstract

To form a ramp for drawing in a drawer by using a cross section of a metal plate forming a rail.SOLUTION: Provided is a drawer structure of a store fixture 1 including a store fixture body 10 and at least one drawer 20. The drawer structure includes at least one set of rails 11 provided in an inside of each of a left side face plate 10a and a right side face plate 10b of the store fixture body 10. The rail 11 is formed of a metal plate extending in a depth direction of the store fixture body 10, and includes an upper rail 11a formed by bending an upper part of the metal plate at least horizontally and a lower rail 11b formed by bending a lower part of the metal plate horizontally and vertically. The portion of the lower rail 11b bent vertically is formed with a ramp 11c located further rearward than a longitudinal center of the lower rail 11b.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a drawer structure for fixtures such as office furniture, and to a fixture equipped with this drawer structure. [Background technology]

[0002] Conventionally, fixtures with drawer structures, such as desks and cabinets, manufactured by processing steel plates, have been widely known. Figs. 7 to 11 show conventional fixtures (cabinets) and their drawer structures. As shown in Fig. 7, the fixture 100 is mainly composed of a fixture body 110 and a drawer 120. The drawer structure allows the drawer 120 to slide in the front-rear direction of the fixture body 110. A typical cabinet has multiple drawers, but for convenience of explanation, Fig. 7 shows only one drawer 120 and one drawer structure. The drawer structure is mainly composed of a set of first rails 111 provided on the fixture body 110 and a set of second rails 121 provided on the drawer 120.

[0003] 7, a set of first rails 111 are welded in parallel at the same height to the inner surfaces of the left side panel 110a and the right side panel 110b of the fixture main body 110. The first rails 111 are made of steel plates extending in the depth direction of the fixture main body 110. The first rails 111 include a first upper rail 111a, a first lower rail 111b, a first slide 112, and a first stopper 113.

[0004] The partial enlarged view of FIG. 8 shows the front half of the first rail 111. As shown in FIG. 8, the first upper rail 111a is formed by bending the upper part of the steel plate constituting the first rail 111 horizontally and vertically. The first lower rail 111b is formed by bending the lower part of the steel plate constituting the first rail 111 horizontally. The first slide 112 is a roller made of synthetic resin and is rotatably attached below the front end of the first rail 111. The first stopper 113 is located behind the first slide 112. The first stopper 113 is formed by cutting a part of the steel plate constituting the first rail 111 along the two side edges and the bottom edge of a rectangle and bending it horizontally along the top edge of the rectangle. Meanwhile, the partial enlarged view of FIG. 9 shows the rear half of the first rail 111. The rear end of the first lower rail 111b is formed with an inclined portion 111c that descends toward the rear.

[0005] 7, a set of second rails 121 are welded to the same height on the outer surfaces of the left side plate 120a and the right side plate 120b of the drawer 120, horizontally or at a slight angle, and parallel to each other. The second rails 121 are made of steel plates extending in the depth direction of the drawer 120. The second rails 121 include a second upper rail 121a, a second lower rail 121b, a second slider 122, and a second stopper 123.

[0006] The partial enlarged view of FIG. 10 shows the rear half of the second rail 121. As shown in FIG. 10, the second upper rail 121a is formed by horizontally bending the upper part of the steel plate constituting the second rail 121. The second lower rail 121b is formed by horizontally bending the lower part of the steel plate constituting the second rail 121. The area of ​​the second upper rail 121a is less than half the area of ​​the second lower rail 121b, and the width is extremely narrow. The second slide 122 is a roller made of synthetic resin and is rotatably attached below the rear end of the second rail 121. The second stopper 123 is located in front of the second slide 122. The second stopper 123 is formed by cutting a part of the steel plate constituting the second lower rail 121b along one side edge and the bottom edge of a rectangle and bending it horizontally along the top edge of the rectangle.

[0007] Next, the sliding action of the drawer in the conventional fixture 100 will be described with reference to FIG. 7. The second rail 121 of the drawer 120 is inserted between the first upper rail 111a and the first lower rail 111b of the first rail 111 of the fixture body 110. The second upper rail 121a enters the inside of the first upper rail 111a. The second lower rail 121b slides in the front-rear direction of the fixture body 110 with its lower surface in contact with the first slider 112. The second slider 122 slides in the front-rear direction of the fixture body 110 with its upper surface in contact with the upper surface of the first lower rail 111b. The second stopper 123 collides with the first stopper 113 when the drawer 120 is pulled out to the fullest extent from the fixture body 110, limiting the forward sliding of the drawer 120. That is, the first and second stoppers 113 , 123 prevent the drawer 120 from falling off from the fixture main body 110 .

[0008] Next, the retracting operation of the drawer 120 in the conventional fixture 100 will be described with reference to FIG. 11. As shown in FIG. 11, when the drawer 120 is slid toward the rear of the fixture body 110, the second slide 122 descends the inclined portion 111c of the first lower rail 111b a few mm before the drawer 120 is completely closed. As a result, the drawer 120 is retracted into the fixture body 110, and the drawer 120 is completely closed. The retraction of the drawer 120 by the inclined portion 111c eliminates the need to push the drawer 120 all the way in, and eliminates the state in which the drawer 120 protrudes slightly forward. Furthermore, the retraction of the drawer 120 by the inclined portion 111c reduces the drawer 120 from opening unintentionally, for example, when the fixture 100 is moved or when the drawer 120 is closed. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2006-192163 A [Patent Document 2] JP 2016-077320 A [Patent Document 3] JP 2023-116333 A Summary of the Invention [Problem to be solved by the invention]

[0010] In the above-mentioned conventional fixture 100 drawer structure, it was extremely difficult to change the angle of the inclined portion 111c for retracting the drawer 120 afterwards. That is, the first rail 111 of the fixture body 110 is formed simultaneously and integrally with the first upper rail 111a, the first lower rail 111b, the inclined portion 111c, and the first stopper 113 by drawing a steel plate of a predetermined shape with a die. If it is desired to change the angle of the inclined portion 111c, it is necessary to remake the die for drawing at least the inclined portion 111c and its surrounding area. Remaking the die is not realistic because it requires manufacturing effort and high costs. For this reason, it was not possible to change the angle of the inclined portion 111c after mass production of the fixture product. For example, the structure of the first rail 111 with the inclined portion 111c may be diverted to a fixture product with a drawer other than the fixture 100. In this case, it is desirable to adjust and optimize the angle of the inclined portion 111c according to the various conditions of the fixture product to which it is converted. However, since it is not possible to remake the mold, the angle of the inclined portion 111c was not optimized. As a result, in the fixture product to which it is converted, a problem occurred in which the retraction of the inclined portion 111c was too weak or too strong. If the retraction of the inclined portion 111c was too weak, the drawer 120 would open inadvertently. On the other hand, if the retraction of the inclined portion 111c was too strong, the pull-out force required to initially open the drawer 120 would be large.

[0011] Furthermore, the thickness of the steel plate constituting first rail 111 may be changed depending on the load weight of the drawer in the fixture product to which it is converted. For example, if the load weight of the drawer is small, the thickness of the steel plate constituting first rail 111 can be made thinner. On the other hand, if the load weight of the drawer is large, the thickness of the steel plate constituting first rail 111 needs to be made thicker. However, in order to change the thickness of the steel plate constituting first rail 111, it is necessary to remake the mold for drawing the steel plate with the changed thickness.

[0012] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a drawer structure for fixtures and fixtures equipped with this drawer structure, which achieves the following effects a) and b) by utilising the cut surfaces of the metal plates that make up the rails to form inclined sections for retracting the drawers. a) A slope designed for a particular fixture product can be adjusted according to the conditions of the other fixture product to which it is to be repurposed, thereby optimizing the slope. b) Even if the thickness of the metal plate that constitutes the rail is changed, it is possible to easily and inexpensively form an optimized inclined portion in a metal plate of this thickness. [Means for solving the problem]

[0013] (1) In order to achieve the above-mentioned object, the drawer structure for a fixture of the present invention is a drawer structure for a fixture comprising a fixture body and at least one drawer, and comprises at least one set of rails provided on the inside of each of the left and right side panels of the fixture body, the rails being constructed of a metal plate extending in the depth direction of the fixture body and having an upper rail formed by bending at least an upper part of the metal plate horizontally and a lower rail having an approximately L-shaped cross section formed by bending a lower part of the metal plate horizontally and vertically, and the vertically bent portion of the lower rail has an inclined portion formed rearward of the longitudinal center of the lower rail.

[0014] (2) Preferably, in the fixture drawer structure described in (1) above, the inclined portion is composed of an upward incline located forward in the longitudinal direction of the lower rail and a downward incline continuing to the rear of the upward incline.

[0015] (3) Preferably, in the drawer structure for fixtures described in (2) above, the angle of the downward incline constituting the inclined portion is within a range of 10° to 30°.

[0016] (4) Preferably, in the drawer structure for fixtures described in (3) above, the height of the apex of the inclined portion is within a range of 1 mm to 5 mm.

[0017] (5) Preferably, in the drawer structure for fixtures described in (1) above, the drawer further comprises two sets of first and second slides provided on the outside of each of the left and right panel of the drawer, each of the first and second slides being a part made of synthetic resin, the first slide being attached near the rear end of each of the left and right panel of the drawer and having an upper slide capable of contacting the upper rail and a lower slide capable of contacting the horizontally bent portion of the lower rail, and the second slide being attached forward of the first slides on each of the left and right panel of the drawer and capable of climbing over the inclined portion while contacting the inclined portion of the vertically bent portion of the lower rail.

[0018] (6) Preferably, in the fixture drawer structure described in (5) above, while the upper slide of the first slide is in contact with the upper rail and while the lower slide of the first slide is in contact with the horizontally bent portion of the lower rail, the second slide does not contact the vertically bent portion of the lower rail.

[0019] (7) Preferably, in the fixture drawer structure described in (5) above, a first mounting hole located at the front and a second mounting hole located at the rear of the first mounting hole are provided on each of the left and right side panels of the drawer, and the second slide comprises a slide body having a total length shorter than the length from the front end of the first mounting hole to the rear end of the second mounting hole, a first claw portion protruding upward from the front end of the slide body by a length approximately equal to the plate thickness of the left and right side panels of the drawer and protruding forward, and a second claw portion protruding from the rear end of the slide body to the drawer. the first claw portion protruding upward a length approximately equal to the thickness of the left and right side panels of the protruding left and right sides, and a second claw portion protruding forward, the length from the rear end of the upwardly protruding portion of the first claw portion to the front end of the upwardly protruding portion of the second claw portion is approximately equal to the length from the rear end of the first mounting hole to the front end of the second mounting hole, the cross-sectional shape of the upwardly protruding portion of the first claw portion is approximately equal to the shape of the first mounting hole, and the width from the front end to the rear end of the upwardly protruding portion of the second claw portion is smaller than the width from the front end to the rear end of the second mounting hole.

[0020] (8) In order to achieve the above object, the fixture of the present invention has a drawer structure according to any one of (1) to (7) above. Effect of the Invention

[0021] In the drawer structure of the present invention, an inclined portion is formed in the vertically bent portion of the lower rail, and this inclined portion is formed by cutting the metal plate constituting the rail into a predetermined shape. Therefore, it is possible to easily and inexpensively form an inclined portion of any shape by cutting the metal plate without using a die for drawing. This allows the inclined portion designed for a specific fixture product to be adjusted according to the various conditions of the other fixture product to which it is to be converted, and the inclined portion can be optimized. Furthermore, even if the thickness of the metal plate constituting the rail is changed, it is possible to easily and inexpensively form an optimized inclined portion in the metal plate of this thickness. [Brief description of the drawings]

[0022] [Figure 1]FIG. 2 is an exploded perspective view showing a fixture according to an embodiment of the present invention. [Diagram 2] 2A and 2B are partially enlarged views showing a drawer that constitutes the fixture of this embodiment, with FIG. 2(a) showing the state without the second slider attached and FIG. 2(b) showing the state with the second slider attached. [Diagram 3] This shows the first slide of the drawer and the rail of the fixture body that make up the fixture of this embodiment, with Figure 3(a) being a partially enlarged view from the side, and Figure 3(b) being a partially enlarged view from the rear. [Figure 4] The figure shows the first and second slides of the drawer and the rails of the fixture body, with Figure 4(a) showing the drawer in a fully open state, Figures 4(b) and 4(c) showing the drawer in the process of closing, and Figure 4(d) showing the drawer in a fully closed state. [Diagram 5] 5A and 5B are schematic diagrams showing the process of attaching a second slide to a drawer, with Fig. 5(a) showing the state where the first claw portion has been inserted into the first mounting hole, Fig. 5(b) showing the state in the process of inserting the second claw portion into the second mounting hole, and Fig. 5(c) showing the state where the second claw portion has been inserted into the second mounting hole. [Figure 6] This shows the movement of the second slide when a stopper attached to the rail of the fixture body collides with the second slide, with Figure 6(a) showing the direction P of the force applied to the second slide when it collides with the stopper, and Figure 6(b) showing the directions R1 and R2 in which the second slide moves when it collides with the stopper. [Figure 7] FIG. 1 is an exploded perspective view showing a conventional fixture. [Figure 8] FIG. 13 is a partially enlarged view showing the first rail of the fixture body that constitutes a conventional fixture. [Figure 9] A partially enlarged view showing the inclined portion formed on the first rail of the fixture body. [Figure 10] FIG. 13 is a partially enlarged view showing the second rail of a drawer constituting a conventional fixture. [Figure 11] This is a partially enlarged view showing the second slide attached to the second rail of the drawer and the inclined portion formed on the first rail of the fixture body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, a fixture having a drawer structure according to an embodiment of the present invention will be described with reference to Figs. 1 to 6.

[0024] 1. Overview of fixtures and drawer structure FIG. 1 shows a fixture (cabinet) 1 and its drawer structure according to this embodiment. In FIG. 1, the fixture 1 of this embodiment is mainly composed of a fixture body 10 and a drawer 20. The drawer structure allows the drawer 20 to slide in the front-to-rear direction of the fixture body 10. A typical cabinet has multiple drawers, but for ease of explanation, FIG. 1 shows only one drawer 20 and one drawer structure. The drawer structure of this embodiment is mainly composed of one set of rails 11 provided on the fixture body 10 and two sets of first and second sliders 22, 23 provided on the drawer 120.

[0025] 2. Rails 1, a set of rails 11 are welded in parallel at the same height on the inside of each of the left side panel 10a and the right side panel 10b of the fixture main body 10. The rails 11 are made of a metal plate, for example a steel plate, that extends in the depth direction of the fixture main body 10. The rails 11 include an upper rail 11a, a lower rail 11b, an inclined portion 11c, and a stopper 12.

[0026] The upper rail 11a is formed by horizontally bending the upper part of the steel plate that constitutes the rail 11. The upper rail 11a is formed in the middle part in the longitudinal direction of the rail 11, and is not formed in the front end part and the rear end part in the longitudinal direction of the rail 11.

[0027] The lower rail 11b is formed by bending the lower part of the steel plate constituting the rail 11 horizontally and vertically, and its cross section is approximately L-shaped. The vertically bent part of the lower rail 11b is formed with an inclined portion 11c located rearward of the center of the lower rail 11b in the longitudinal direction. The inclined portion 11c is mountain-shaped when viewed from the side, and is composed of an upward inclination located in front of the longitudinal direction of the lower rail 11b and a downward inclination continuing from the rear of the upward inclination. Such an inclined portion 11c is formed by cutting the metal plate constituting the rail 11. An embodiment of the inclined portion 11c according to the load weight of the drawer 20 will be described in detail later.

[0028] A stopper 12 made of synthetic resin is attached to the front end of the lower rail 11b. As shown in Fig. 3(b) and Fig. 4(a), the upper surface of the stopper 12 is a convex curved surface in the shape of an arc when viewed from the side. First, the stopper 12 collides with the second slider 23 of the drawer 20 to restrict the forward sliding of the drawer 20. This prevents the drawer 20 from falling off the fixture body 10. Second, the stopper 12 comes into contact with the lower surface of the horizontally bent portion of the folded portion 21 of the drawer 20 to function as a slider that slides the drawer 20. The synthetic resin for forming the stopper 12 is not particularly limited, and may be, for example, a general-purpose resin such as PE (polyethylene), or preferably, an engineering plastic such as PA6 (polyamide 6) or POM (polyacetal resin).

[0029] 3. First and second slides As shown in FIG. 1, a folded portion 21 is formed at the upper portion of each of the left side panel 20a and the right side panel 20b of the drawer 20. The folded portion 21 is formed by bending the upper portion of the steel plate constituting the left side panel 20a and the right side panel 20b horizontally and vertically outward, respectively, and has a substantially L-shaped cross section (see FIG. 3(b)). As shown in FIGS. 2(a) and (b), a first slider 22 is attached to the rear end of the folded portion 21. A second slider 23 is attached to the folded portion 21 in front of the first slider 22. Both the first and second sliders 22 and 23 are made of synthetic resin. The synthetic resin for forming the first and second sliders 22 and 23 is not particularly limited, and may be, for example, a general-purpose resin such as PE (polyethylene), or preferably an engineering plastic such as PA6 (polyamide 6) and POM (polyacetal resin).

[0030] As shown in Fig. 3(a) and (b), the first slider 22 is formed with an upper slider 22a that protrudes upward and a lower slider 22b that protrudes downward. The upper surface of the upper slider 22a is a convex curved surface that is mountain-shaped when viewed from the side. On the other hand, the lower surface of the lower slider 22b is a convex curved surface that is arc-shaped when viewed from the side. The upper slider 22a comes into contact with the lower surface of the upper rail 11a of the rail 11 and can slide smoothly. On the other hand, the lower slider 22b comes into contact with the upper surface of the horizontally bent portion of the lower rail 11b of the rail 11 and can slide smoothly.

[0031] As shown in Fig. 2(a) and (b), the turn-back portion 21 of the drawer 20 is provided with a first mounting hole 21a located in the front and a second mounting hole 21b located behind the first mounting hole 21a. The second slide 23 is attached to the first and second mounting holes 21a, 21b of the turn-back portion 21. The second slide 23 is composed of a slide body 23a, a first claw portion 23b, and a second claw portion 23c. The slide body 23a is a substantially rectangular block that is long in the front-rear direction and short in the left-right direction. The first claw portion 23b is integrally molded at the front end of the slide body 23a and has a shape that can be inserted into and locked in the first mounting hole 21a. The second claw portion 23c is integrally molded at the rear end of the slide body 23a and has a shape that can be inserted into and locked in the second mounting hole 21b. The second slider 23 functions as a second stopper that collides with the stopper 12 of the rail 11 to limit the forward sliding of the drawer 20. The function of the second slider 23 as a second stopper will be described in detail later.

[0032] 4. Drawer sliding action Next, the sliding action of drawer 20 will be described with reference to Fig. 4(a)-(d). Fig. 4(a)-(d) show the sliding action of drawer 20 from a fully open state to a fully closed state. During the period from a fully open state to a fully closed state, drawer 20 slides in the front-rear direction along rail 11 with the lower surface of the horizontally folded portion of folded portion 21 in contact with the upper surface of stopper 12.

[0033] As shown in FIG. 4(a), when the drawer 20 is fully open, the rear end surface of the stopper 12 collides with the front end surface of the second slider 23, restricting the forward sliding of the drawer 20. When fully open, the center of gravity of the drawer 20 is located forward of the stopper 12, with the front end of the drawer 20 facing downward and the rear end facing upward. At this time, the upper slider 22a of the first slider 22 comes into contact with the lower surface of the horizontally bent portion of the upper rail 11a. In this state, the drawer 20 slides backward along the rail 11.

[0034] As shown in Fig. 4(b), when the drawer 20 is slid backward, the center of gravity of the drawer 20 moves rearward from the stopper 12, and the drawer 20 becomes parallel to the rail 11. As a result, the upper slider 22a of the first slider 22 moves away from the lower surface of the horizontally bent portion of the upper rail 11a, and the lower slider 22b of the first slider 22 comes into contact with the upper surface of the horizontally bent portion of the lower rail 11b. At this time, the lower surface of the slider body 23a of the second slider 23 does not come into contact with the cut surface of the vertically bent portion of the lower rail 11b.

[0035] As shown in Fig. 4(c), when the drawer 20 is further slid backward, the lower surface of the slider body 23a of the second slider 23 comes into contact with the upward incline of the inclined portion 11c, and the second slider 23 starts to climb the upward incline of the inclined portion 11c. As the second slider 23 approaches the apex of the inclined portion 11c, the rear end of the drawer 20 moves upward, but the upper slider 22a of the first slider 22 has already passed the rear end of the upper rail 11a and does not come into contact with the upper rail 11a.

[0036] As shown in Fig. 4(d), the second slider 23 then passes the apex of the inclined portion 11c and descends the downward slope of the inclined portion 11c, causing the drawer 20 to be pulled backward and the drawer 20 to be completely closed.

[0037] 5. Example of inclined section The ideal pull-out force (kg) of the drawer 20 is said to be approximately 2.0 kg or less for the expected maximum load. The pull-out force (kg) is the force required for the second slide 23 to overcome the downward slope of the inclined portion 11c when the drawer 20 is pulled out in a completely closed state, as shown in FIG. 4(d). Therefore, the value of the pull-out force (kg) increases or decreases depending on the configuration of the inclined portion 11c. Therefore, four types of rails 11 with different configurations of the inclined portion 11c were created, and the value of the pull-out force (kg) for the load weight (kg) of the drawer 20 was measured. The measurement conditions and results are shown in Table 1 below.

[0038] [Table 1]

[0039] The inclined portion 11c of Example 1 has a downward inclination angle of 13.0°, a peak height of 3 mm, and a downward inclination depth of 13 mm. The inclined portion 11c of Example 1 has a pull-out force of 0.8 kg to 2.1 kg for a drawer load weight of 2.0 kg to 10.0 kg. Therefore, according to the inclined portion 11c of Example 1, an ideal pull-out force (kg) can be obtained within the maximum load range of 2.0 kg to 10.0 kg. However, the inclined portion 11c of Example 1 has a pull-out force of 2.8 kg for a drawer load weight of 15.0 kg, which is slightly large.

[0040] The inclined portion 11c of Example 2 has a downward inclination angle of 16.7°, a peak height of 3 mm, and a downward inclination depth of 10 mm. The inclined portion 11c of Example 2 has a pull-out force of 1.0 kg to 2.1 kg for a drawer load weight of 2.0 kg to 7.5 kg. Therefore, according to the inclined portion 11c of Example 2, an ideal pull-out force (kg) can be obtained within the maximum load range of 2.0 kg to 7.5 kg. However, the inclined portion 11c of Example 2 has a large pull-out force (kg) of 2.7 kg to 3.8 kg for a drawer load weight of 10.0 kg to 15.0 kg.

[0041] The inclined portion 11c of Example 3 has a downward inclination angle of 26.6°, a peak height of 3 mm, and a downward inclination depth of 6 mm. The inclined portion 11c of Example 3 has a pull-out force of 1.6 kg to 1.9 kg for a drawer load weight of 2.0 kg to 3.0 kg. Therefore, according to the inclined portion 11c of Example 3, an ideal pull-out force (kg) can be obtained within the maximum load range of 2.0 kg to 3.0 kg. However, the inclined portion 11c of Example 3 has a large pull-out force (kg) of 2.6 kg to 6.5 kg for a drawer load weight of 5.0 kg to 15.0 kg.

[0042] The inclined portion 11c of Example 4 has a downward inclination angle of 26.6°, a peak height of 4 mm, and a downward inclination depth of 8 mm. The inclined portion 11c of Example 4 has a pull-out force of 1.6 kg to 1.9 kg for a drawer load weight of 2.0 kg to 3.0 kg. Therefore, according to the inclined portion 11c of Example 4, an ideal pull-out force (kg) can be obtained within the maximum load range of 2.0 kg to 3.0 kg. However, the inclined portion 11c of Example 4 has a large pull-out force (kg) of 2.6 kg to 6.5 kg for a drawer load weight of 5.0 kg to 15.0 kg.

[0043] According to the measurement results of Examples 1 to 4, it was found that the downward inclination angle and apex height of the inclined portion 11c greatly affect the pull-out force (kg). The smaller the downward inclination angle and apex height of the inclined portion 11c, the smaller the pull-out force (kg) relative to the load weight (kg) of the drawer 20. For the load weight (kg) within the expected range of the drawer 20, the practical downward inclination angle of the inclined portion 11c is considered to be in the range of approximately 10° to 30°, and the practical apex height is considered to be in the range of approximately 1 mm to 5 mm. The depth (mm) of the downward inclination of the inclined portion 11c is determined by the combination of the downward inclination angle and the apex height.

[0044] 6. Preventing the second slide from falling off As described above, the second slider 23 of this embodiment functions as a second stopper that collides with the stopper 12 of the rail 11 to limit the forward sliding of the drawer 20 (see FIG. 4(a)). The second slider 23 of this embodiment is designed not to fall off the first and second mounting holes 21a, 21b of the folded-back portion 21 even when it receives an impact when colliding with the stopper 12. The characteristic configuration of the second slider 23 and its effects will be described in detail below.

[0045] FIG. 5(c) shows the second slide 23 attached to the first and second mounting holes 21a, 21b of the folded portion 21. As already mentioned, the second slide 23 is configured by integrally forming the first claw portion 23b at the front end of the approximately rectangular parallelepiped slide body 23a and the second claw portion 23c at the rear end. As shown in FIG. 5(c), the slide body 23a has a total length shorter than the length from the front end of the first mounting hole 21a to the rear end of the second mounting hole 21b. The first claw portion 23b protrudes upward from the front end of the slide body 23a by a length approximately equal to the plate thickness of the folded portion 21 and protrudes forward. The second claw portion 23c protrudes upward from the rear end of the slide body 23a by a length approximately equal to the plate thickness of the folded portion 21 and protrudes forward.

[0046] The length from the rear end of the upwardly protruding portion of the first claw portion 23b to the front end of the upwardly protruding portion of the second claw portion 23c is approximately equal to the length from the rear end of the first mounting hole 21a to the front end of the second mounting hole 21b. The cross-sectional shape of the upwardly protruding portion of the first claw portion 23b is approximately equal to the shape of the first mounting hole 21a. On the other hand, the width from the front end to the rear end of the upwardly protruding portion of the second claw portion 23c is smaller than the width from the front end to the rear end of the second mounting hole 21b.

[0047] The second slide 23 having such a configuration is attached to the first and second mounting holes 21a, 21b of the folded-back portion 21 in the procedure shown in Fig. 5(a) to (c). First, as shown in Fig. 5(a), the first claw portion 23b is inserted into the first mounting hole 21a, and the second slide 23 is rotated in the direction of the arrow in the figure with the front end of the first mounting hole 21a as a fulcrum. To facilitate this rotation, the back surface of the first claw portion 23b is curved in an arc shape. Next, as shown in Fig. 5(b), the second claw portion 23c is inserted into the second mounting hole 21b. Since the forward protruding portion of the second claw portion 23c protrudes forward beyond the front end of the second mounting hole 21b, the second claw portion 23c is inserted into the second mounting hole 21b while deforming the second claw portion 23c backward within the range of the front-rear width of the second mounting hole 21b. As a result, as shown in Figure 5 (c), the first claw portion 23b engages with the front end of the first mounting hole 21a, and the second claw portion 23c engages with the front end of the second mounting hole 21b, and the second slide 23 is attached to the first and second mounting holes 21a, 21b.

[0048] Arrow P in Fig. 6(a) indicates the direction of the force applied to the second slide 23 when it collides with the stopper 12 shown in Fig. 4(a). As shown in Fig. 6(b), when the second slide 23 collides with the stopper 12, it receives the force of arrow P and moves in the directions of arrows R1 and R2. That is, when the second slide 23 collides with the stopper 12, it moves in the rotation direction for mounting the second slide 23 to the first and second mounting holes 21a, 21b shown in Figs. 5(a)-(b). Therefore, the second slide 23 will not fall off from the first and second mounting holes 21a, 21b even if it collides with the stopper 12 unless it is damaged.

[0049] 7. Effects of the drawer structure In the drawer structure of the fixture 1 of the present embodiment described above, the inclined portion 11c is formed in the vertically bent portion of the lower rail 11b, and this inclined portion 11c is formed by cutting the metal plate constituting the rail 11 into a predetermined shape. Therefore, it is possible to easily and inexpensively form the inclined portion 11c of any shape by cutting the metal plate without using a die for drawing. This allows the inclined portion 11c designed for a specific fixture 1 to be adjusted according to the various conditions of the other fixture product to which it is converted, and the inclined portion 11c can be optimized. Also, even if the thickness of the metal plate constituting the rail 11 is changed, it is possible to easily and inexpensively form the optimized inclined portion 11c in the metal plate of this thickness.

[0050] Furthermore, in the drawer structure of the fixture 1 of this embodiment, the slider body 23a of the second slider 23 comes into contact with the cut surface of the vertically bent portion of the lower rail 11b only when the second slider 23 climbs over the inclined portion 11c. This significantly reduces wear on the slider body 23a, making it possible to extend the life of the second slider 23. [Explanation of symbols]

[0051] 1. Cabinets 10 Fixtures 10a Left side plate 10b Right side plate 11 Rail Upper rail 11a Lower rail 11b Inclined portion 11c Stopper 12 Drawer 20 Left side panel 20a Right side panel 20b Folding portion 21 First mounting hole 21a Second mounting hole 21b First slider 22 Upper slider 22a Lower slider 22b Second slider 23 Slider body 23a First claw portion 23b Second claw portion 23c

Claims

1. A fixture drawer structure comprising a fixture body and at least one drawer, At least one pair of rails is provided on the inside of each of the left side panel and the right side panel of the fixture body, The rail is composed of a metal plate extending in the depth direction of the fixture body, and has an upper rail formed by bending the upper part of the metal plate at least horizontally, and a lower rail with an approximately L-shaped cross section formed by bending the lower part of the metal plate horizontally and vertically, and the vertically bent portion of the lower rail forms an inclined portion located rearward of the longitudinal center of the lower rail.This is a fixture drawer structure.

2. 2. The fixture drawer structure according to claim 1, wherein the inclined portion is composed of an upward incline located in front of the lower rail in the longitudinal direction and a downward incline continuing to the rear of the upward incline.

3. The fixture drawer structure according to claim 2, wherein the angle of the downward incline constituting the inclined portion is within the range of 10° to 30°.

4. The drawer structure for fixtures according to claim 3, wherein the height of the apex of the inclined portion is within the range of 1 mm to 5 mm.

5. The drawer further includes two pairs of first and second slides provided on the outside of each of the left and right side panels of the drawer, Each of the first and second sliders is a component formed from a synthetic resin, The first slide is attached to the left side panel and the right side panel of the drawer near the rear end thereof, and has an upper slide capable of contacting the upper rail and a lower slide capable of contacting a horizontally bent portion of the lower rail, The drawer structure for fixtures as described in claim 1, wherein the second slide is attached forward of the first slide on each of the left and right panel of the drawer, and is capable of climbing over the inclined portion while contacting the inclined portion at the vertically bent portion of the lower rail.

6. The drawer structure for fixtures as described in claim 5, wherein while the upper slide of the first slide is in contact with the upper rail and while the lower slide of the first slide is in contact with the horizontally folded portion of the lower rail, the second slide does not contact the vertically folded portion of the lower rail.

7. A first mounting hole is provided in the left side panel and the right side panel of the drawer, the first mounting hole being located in the front and the second mounting hole being located in the rear of the first mounting hole. The second slide has a slide body having a total length shorter than the length from the front end of the first mounting hole to the rear end of the second mounting hole, a first claw portion that protrudes upward from the front end of the slide body by a length approximately equal to the plate thickness of the left side panel and the right side panel of the drawer and also protrudes forward, and a second claw portion that protrudes upward from the rear end of the slide body by a length approximately equal to the plate thickness of the left side panel and the right side panel of the drawer and also protrudes forward, a length from a rear end of the upwardly protruding portion of the first claw portion to a front end of the upwardly protruding portion of the second claw portion is substantially equal to a length from a rear end of the first mounting hole to a front end of the second mounting hole, The cross-sectional shape of the portion of the first claw portion that protrudes upward is substantially the same as the shape of the first mounting hole, The fixture drawer structure according to claim 5 , wherein the width from the front end to the rear end of the upwardly protruding portion of the second claw portion is smaller than the width from the front end to the rear end of the second mounting hole.

8. A fixture comprising a drawer structure according to any one of claims 1 to 7.

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