JPH0722111Y2 - Extraction suspension device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to an extraction suspension device, and more particularly, to a rolling support for rotatably supporting a play trochanter for guiding an in / out movement of an extraction rail. The present invention relates to improvement of an extraction suspension device including a child support mechanism section.

(Prior Art) A conventional example of a trochanter support mechanism in an extraction suspension device will be described with reference to FIGS. 11 and 12.

The trochanter support mechanism 50 shown in the figure is It is attached to the vertical wall portion 51a of the intermediate rail 51 having a cross section. The trochanter support mechanism portion 50 is provided with a longitudinal linear portion 53c of a round rod-shaped guide rod 53 in order to correspond to the rolling range of the idle trochanter 52, and a wide flat attachment is provided at both ends of the longitudinal linear portion 53c. While forming the portions 53a and 53b, holding pieces 54a and 54b are cut and raised in the vertical wall portion 51a so as to face each other at intervals corresponding to the longitudinal linear portions 53c, and both holding pieces 54a and 54b are long. The hole-like engagement holes 55a and 55b are formed.

The mounting portion 53a is bent at about 90 ° with respect to the longitudinal linear portion 53c, and the mounting portion 53b is folded back along the longitudinal linear portion 53c, and one mounting portion 53a is engaged. The mounting portion 53a is elastically locked to the holding piece 54a by being inserted through the hole 55a and rotated, and the other mounting portion 53b is inserted through the engagement hole 55b and rotated to rotate the mounting portion 53b. The engaging hole 55
It is designed to engage with the hole edge of b.

With this structure, the protruding shaft portion 52a provided on the idler rotor 52 is rotatably supported on the straight portion 53c (see Japanese Utility Model Publication No. 60-22835).

However, in the case of the trochanter support mechanism portion 50 having the above-mentioned configuration, since the holding pieces 54a and 54b are cut and raised from the intermediate rail 51, there is a problem that the strength of the vertical wall portion 51a of the intermediate rail 51 is reduced.

Further, since both the mounting portions 53a and 53b of the guide rod 53 have the above-described shapes, the engaging holes 5 are attached when mounting to the holding pieces 54a and 54b.
There is also a problem that the attaching operation is not easy because the inserting operation and the rotating operation to the 5a and 55b are required.

(Problems to be Solved by the Invention) The present invention has been made in view of the above circumstances, and is provided with a trochanter support mechanism portion that does not cause a decrease in strength of the intermediate rail and that is easy to attach the guide rod. It is intended to provide an extraction suspension device.

[Structure of the Invention] (Means for Solving the Problem) The present invention relates to a suspension rail fixed to furniture,
An intermediate rail and an extraction rail fixed to the side surface of the extraction main body are slidably combined, and an idle roller for guiding the extraction rail in and out is rotatably supported by a trochanter support mechanism provided on the intermediate rail. In the supported extraction suspension device, the trochanter support mechanism portion is one support member having an insertion portion in the moving direction of the idle trochanter attached to the intermediate rail, and one support member facing the intermediate rail. And the other support member, which is mounted in a state, is provided with a play hole and an engagement hole that are separated from the vertical wall portion of the intermediate rail in a continuous state, and one end side is formed linearly and the other end portion is formed. A crank-shaped bent engagement portion on the side, and a guide rod whose middle portion is formed linearly,
One end side of the guide rod is inserted into the insertion portion of the one support member, and the bent engagement portion on the other end side is formed into an engagement hole through a play hole of the other support member. The protruding shaft portion of the idle trochanter is rotatably supported at an intermediate portion of the guide rod by being engaged.

(Operation) The operation of the apparatus having the above configuration will be described below.

According to the trochanter support mechanism portion of this device, since both support members are attached to the intermediate rail, there is no cut-raised portion in the intermediate rail, and therefore there is no reduction in strength.

In addition, when the guide rod is attached to both support members, one linear end portion is inserted into the insertion portion provided on the one support member, and the bending engagement portion on the other end portion side is supported on the other. It is only necessary to engage the engaging hole through the play hole provided in the member.

(Embodiment) An embodiment of the present invention will be described in detail below.

The extraction suspension device 1 shown in FIG. 1 has a section fixed to furniture such as a desk or a steel cabinet. -Shaped suspension rail 2 and a cross section that slides inside the suspension rail 2 in the longitudinal direction -Shaped intermediate rail 3, an extraction rail 5 fixed to the side surface of an extraction body (described later) 4 and sliding along the intermediate rail 3 and having a crank-shaped (shaped) cross section, and a vertical wall portion 3a of the intermediate rail 3. It has a trochanter support mechanism 6 attached thereto and an idle trochanter 7 rotatably supported by the trochanter support mechanism 6 along the vertical wall 3a of the intermediate rail 3.

The suspension rail 2 is, as shown in FIG.
A rectangular vertical wall portion 2a having a constant length, an upper piece 2b and a lower piece 2c projecting laterally at 90 ° along the upper and lower ends of the vertical wall portion 2a, and the upper piece 2b and the lower portion. An upper bent piece 2d and a lower bent piece 2e projecting downward and upward from the protruding end of the piece 2c, respectively.
A cross-section formed integrally with It is formed into a shape.

The upper piece 2b and the upper bent piece 2d on one end side of the suspension rail 2 are notched as shown in FIG. 2, and an intermediate rail receiving portion 2f is formed in this portion.

A fixed stopper 8 made of synthetic resin is fitted in the vicinity of the intermediate rail receiving portion 2f. The stopper piece 8a of the fixed stopper 8 projects to the lower surface side of the upper piece 2b and regulates the slide of the intermediate rail 3 as described later.

Further, the vertical wall portion 2a of the suspension rail 2
Two small projections 2g made of synthetic resin are fitted to the lower side of the fixed stopper 8 and slidably contact the vertical wall portion 3a of the intermediate rail 3.

A pair of cutting and bending pieces 2h ₁ and 2h ₂ are further formed on the vertical wall portion 2a, and a long hole 2i is formed near the other end portion.

As shown in FIG. 3, the intermediate rail 3 is formed as a whole inside the suspension rail 2 so as to be slidable in the longitudinal direction thereof.

The intermediate rail 3 includes a rectangular vertical wall portion 3a, an upper piece 3b and a lower piece 3c projecting laterally at 90 ° along upper and lower ends of the vertical wall portion 3a, an upper piece 3b and a lower piece 3b. An upper bent piece 3d and a lower bent piece 3 projecting downward and upward from the protruding end of the piece 3c, respectively.
Cross section formed integrally with e It is formed into a shape.

On one end side of the upper piece 3b of the intermediate rail 3,
As shown in an exploded perspective view in FIG. 3, a fitting hole 9 and an end notch 10 are provided, and an intermediate rail stopper 11 is fitted in the fitting hole 9 and the end notch 10.

The intermediate rail stopper 11 is an upper piece 3b near the fitting hole 9.
Tip fitting portion fitted in the fitting hole 9 while holding the
11a, a rear end fitting portion 11b fitted into the end notch 10,
It is formed by integrally molding a movement stopper piece 11c having a vertical end surface on the tip fitting portion 11a side using a synthetic resin. Then, with the intermediate rail stopper 11 fitted to the intermediate rail 3, the intermediate rail 3
1 is slid in the direction of arrow X shown in FIG. 1, the end surface of the movement stopper piece 11c abuts on the intermediate rail receiving portion 2f.

Further, a hole is formed in the lower piece 3c near one end of the intermediate rail 3, and the outer periphery of the lower piece 3c extends from this hole.
The lower guide roller 12 with the bearing 12a is rotatably supported by the vertical wall portion 3a so as to project further downward than 3c.

Further, the upper end region of the vertical wall portion 3a on the other end side of the intermediate rail 3, the upper piece 3b, and the upper bending piece 3d are also cut out over a certain range, and the outer circumference is upward from this cutout removed portion. Piece 3b
The upper guide roller 13 with the bearing 13a is rotatably supported by the vertical wall portion 3a while protruding further upward.

A total of four loosely fitting rollers 14 and 14 'are rotatably arranged in a substantially central portion of the lower piece 3c of the intermediate rail 3 at predetermined intervals.

As shown in FIG. 5 (a), the loose fitting roller 14 has a slightly larger through hole 14a formed in the center thereof and is provided between the vertical wall portion 3a and the lower bending piece 3e. by inserting the support shaft 15 in the through hole 14a, rotatably this loosely roller 14, and is adapted to movably support the arrow Y _1, Y ₂ direction in FIG. 5.

Further, the diameter of the loose fitting roller 14 'is slightly smaller than that of the loose fitting roller 14, and as shown in FIG. 5 (b), the center portion of the loose fitting roller 14' is provided with a metallic shaft supporting portion 14b. It is inserted through the support shaft 15 so that it can rotate at a fixed position.

As shown in FIGS. 6 and 7, a width regulating member 16 made of synthetic resin is fitted to the lower piece 3c between the other end of the intermediate rail 3 and the mounting portion of the loose fitting roller 14. It is worn.

As shown in FIG. 6 and FIG. 7, the width regulating member 16 is fitted in a pair of holes formed in the lower piece 3c, and fitting pieces 16b, 16c protruding slightly upward from the lower piece 3c, The fitting pieces 16b and 16c and the width regulating piece 16a that are integral with each other are provided.

The width L ₁ of the width regulating piece 16a is formed to be slightly larger than the width L ₀ of the lower end portion of the intermediate rail 3 and slightly smaller than the inner width of the suspension rail 2.

Therefore, when the intermediate rail 3 is slid in the suspension rail 2, the width-regulating piece 16a comes into contact with the facing surface of the vertical piece 2a of the suspension rail 2 and the lower bending piece 2e, whereby the intermediate rail 3a is slid. The lower side of 3 is designed to prevent the shake in the width direction. The third
In the figure, 3f is an elongated hole provided in the vertical wall portion 3a of the intermediate rail 3.

As shown in FIGS. 1, 3, and 8, the trochanter support mechanism portion 6 includes one support member 17 attached to the intermediate rail 3 and one support member for the intermediate rail 3. 17
A state in which the other support member 18 and the support members 17 and 18 which are attached to face each other at a constant interval are along the vertical wall portion 3a and are separated laterally from the vertical wall portion 3a by a constant distance. A wire-shaped guide rod with a round cross section that is detachably supported by
It has 19 and.

As shown in an enlarged view in FIG. 8, one support member 17 has a substantially rectangular parallelepiped shape as a whole, and an arc-shaped portion 20a corresponding to the curvature of the outer circumference of the idler roller 7 is formed on the end surface of the other support member 18 side. ing. The support member 17 has a pair of insertion grooves 21a and 21b and both insertion grooves 21 along the length direction of the guide rod 19.
A straight hole 21c is provided that connects a and 21b.

Then, the guide rod 19 is inserted through the insertion hole 21a, the straight hole 21c and the insertion groove 21b.

A pair of protrusions 22a and 22b are provided on the upper surface of the support member 17, and when the support member 17 is attached to the intermediate rail 3, the ends of the protrusions 22a and 22b are aligned with the inner surface of the upper bending piece 3d. The support member 21 can be abutted and fixed to a predetermined position of the intermediate rail 3.

The projecting end surface 20b of the supporting member 21 is formed so that the central portion thereof projects most and has an arcuate curved surface with a small projecting length on both end sides to prevent collision with the extraction rail 5, and at the same time, this projecting end surface 20b. The guide function in the width direction of the intermediate rail 3 with respect to the extraction rail 5 is exerted by 20b.

As shown in FIGS. 1, 3, and 9, the other support member 18 includes an upper protruding portion 18a, a fitting portion 18b, and a lower protruding portion 1
8c is formed by integral molding of synthetic resin. The lower protruding portion 18c is provided with an engaging piece 18d located on the side of the upper bent piece 3d, and the engaging piece 18d has a play hole 23a in the shape of an elongated hole along the longitudinal direction of the intermediate rail 3. And an engaging hole 23c for the guide rod 19 which is connected to the play hole 23b.

The guide rod 19 is, as shown in FIGS. 1, 3, and 8, a linear intermediate portion 19a having a predetermined length, and a linear end portion 19b connected to the intermediate portion 19a. The bent engaging portion 19c formed by bending is integrally formed.

As shown in FIG. 4, the extraction rail 5 includes an extraction body 4
A fixed piece 5a fixed to the side surface of the fixed piece, a horizontal piece 5b projecting 90 ° laterally from the lower end of the fixed piece 5a, and a bent piece 5c bent 90 ° downward from the protruding end of the horizontal piece 5b. It is formed in a crank shape (shape) having a cross section.

The horizontal piece 5b is inserted between the idler roller 7 and the idler roller 14, and slides relative to the intermediate rail 3 in a state of contacting the outer peripheries of these rollers 7, 14, respectively. .

In addition, the extraction rail 5 includes an upper bent piece of the intermediate rail 3.
A slide guide piece 5d that contacts the lower end of 3d is provided.

Next, the operation of the device 1 having the above configuration will be described with reference to FIG. 10 and mainly the operation of the trochanter support mechanism section 6.

In order to mount the guide rod 19 on the intermediate rail 3 and support the idle roller 7, first, as shown in FIG. 10 (a), the bent engaging portion 19c of the guide rod 19 is attached to the other supporting member 18. The insertion hole is provided in the play hole 23b provided, and the one end portion 19b is opposed to the insertion groove 21a provided in the cover member 21.

Next, as shown in FIG. 10 (b), one end 19b of the guide rod 19 is inserted into the insertion groove 21a, the straight hole 21c and the insertion groove 21b in this order, and the bent engagement portion 19c is engaged with the engagement portion. Position it right above the hole 23c.

Further, as shown in FIG. 10 (c), the bent engaging portion 19c is pushed downward to engage with the engaging hole 23c.

As a result, the guide rod 19 can be easily operated with both support members 17,1.
The projecting shaft portion 7a provided on the idler rotator 7 is rotatably supported by the linear intermediate portion 19a which is linearly installed between the eight.

According to the embodiment apparatus 1 described in detail above, since the intermediate rail 3 is not provided with the cutout hole as in the conventional example, the strength reduction can be prevented.

Further, the attaching operation of the guide rod 19 for supporting the idle trochanter 7 in the trochanter support mechanism portion 6 is also simplified as described above.

[Advantages of the Invention] According to the present invention described in detail above, due to the above-mentioned configuration, the extraction suspension device equipped with the trochanter support mechanism portion that does not reduce the strength of the intermediate rail and facilitates the mounting operation of the guide rod. Can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view of an apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of a suspension rail in the apparatus, FIG. 3 is a perspective view of an intermediate rail of the apparatus, and FIG. FIG. 5 is a sectional view taken along line I, FIG. 5 is a partial cutaway view showing a state in which a loosely fitting roller is attached to an intermediate rail of the same apparatus, and FIG. 6 is a sectional view taken along line II-II of FIG. 7 is a partial cross-sectional view showing a fitted state of the width regulating member on the intermediate rail, FIG. 8 is an enlarged perspective view showing one supporting member of the same device, and FIG. 9 is a line III-III in FIG. Sectional view, Fig. 10 (a), (b),
(C) is an explanatory view of the mounting of the trochanter support mechanism of the embodiment apparatus, FIG. 11 is a perspective view of a conventional intermediate rail, and FIG. 12 is a partially enlarged view of the same. 1 ... extraction suspension device, 2 ... suspension rail, 3 ... intermediate rail, 4 ... extraction body, 5 ... extraction rail, 6 ...
7,18 …… Supporting member, 19 …… Guide rod, 19a …… Middle part, 1
9b: end, 19c: bent engaging part.

Claims (1)

[Scope of utility model registration request] 1. A suspension rail fixed to furniture, an intermediate rail, and an extraction rail fixed to a side surface of an extraction body are slidably combined, and an idle trochanter for guiding an in / out movement of the extraction rail is provided to the intermediate. In the extraction suspension device rotatably supported by a trochanter support mechanism section provided on a rail, the trochanter support mechanism section has one support having an insertion section in a moving direction of the idle trochanter attached to the intermediate rail. A member, and the other support member that is attached to the intermediate rail so as to face one of the support members, and that has a play hole and an engagement hole that are separated from the vertical wall portion of the intermediate rail in a continuous state, An end portion side of the guide rod is linearly formed, a crank-shaped bent engagement portion is provided at the other end portion side, and a guide rod having an intermediate portion formed in a linear shape is provided. One end portion side is inserted into the insertion portion of the one support member, and the bent engagement portion on the other end portion side is engaged with the engagement hole through the play hole of the other support member, An extraction suspension device characterized in that a protruding shaft portion of the idle trochanter is rotatably supported at an intermediate portion of the guide rod.