JPH0620449Y2 - Adjuster device for legs in furniture - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an adjuster device which is provided at the lower end of a leg of furniture to adjust the height of the furniture.

[Conventional technology]

As an adjuster device for adjusting the height of furniture such as desks and cabinets, as a prior art, Japanese Utility Model Publication No. 56-373.
According to Japanese Patent Laid-Open No. 95, a frame-shaped support frame opened downward is fixed to the inside of the lower end of a hollow leg having an open lower surface, and a female screw hole into which an adjuster bolt is screwed is provided inside the support frame. A device is disclosed in which a perforated adjuster receiving member is fitted and mounted from below so that the upper end of the adjuster receiving member is supported by the upper plate of the support frame.

[Problems to be solved by the device]

When configured as in this prior art, the adjuster receiving member has the advantage that it can be easily attached by inserting it from below into the hollow portion of the support frame.

However, in order to prevent the adjuster receiving member from easily falling off from the support frame, the distance between the side surfaces of the adjuster receiving member is set to be slightly larger than the distance between the inner side surfaces of the support frame. In this case, since the adjuster receiving member is tightly fitted into the hollow portion of the support frame by hammering it into the hollow portion of the supporting frame, when the adjuster receiving member is fitted into the support frame, Twisting easily occurs between the outer surface of the member and the inner surface of the support frame.

For this reason, the adjuster receiving member is forcibly fitted into the support frame with the axis of the female screw hole tilted with respect to the vertical line, and the axis of the adjuster bolt tilts with respect to the vertical line. However, there is a problem that there is a problem in that the entire lower end surface of the adjuster bolt does not come into close contact with the floor surface, and a part of the lower end surface of the adjuster bolt comes into contact with the floor surface in a one-sided contact state.

To solve this problem, by increasing the vertical height of the support frame and the adjuster receiving member, the fitting posture of the adjuster receiving member can be corrected when the adjuster receiving member is fitted into the supporting frame. Although considered to be good, this not only increases the size of the support frame and the adjuster receiving member and increases the material cost, but also increases the contact area between the adjuster receiving member and the support frame, in other words, the adjuster receiving member. Since the frictional resistance with the support frame increases, a large amount of force is required to insert the adjuster receiving member, which reduces the ease of mounting work.

On the other hand, in an office desk, the legs are formed into a hollow plate shape, and an opening for inserting a cord is cut and formed on the side surface so as to extend in the vertical direction, and the cover is attached to and detached from the opening. It is freely installed. In this case, as a means for holding the cover body so that it cannot be dropped, for example, a protrusion is formed on the outer surface of the cover body, and this is fitted into a hole formed on the inner surface of the opening. There is a problem that it takes a lot of time to manufacture the legs because the body needs to be processed.

An object of the present invention is to solve the above-mentioned problem regarding the adjuster device that supports the leg and the above-mentioned problem regarding the mounting of the cover at the same time when the opening is formed in the leg and covered with the cover. It is what

[Means for Solving the Problems]

In order to achieve this object, the present invention secures a downwardly opening support frame inside the lower end of a downwardly-opening hollow leg of furniture, and inserts a female screw hole into which the adjuster bolt is screwed into the support frame. In an adjuster device in which an installed adjuster receiving member is fitted and mounted from below, a cord insertion opening is formed so as to extend in a vertical direction on a side surface of a portion of a leg of the furniture adjacent to the adjuster receiving member. Then, a cover that closes the opening is fitted into the opening, a lateral protrusion that supports the lower end of the cover body is formed on the adjuster receiving member, and an adjuster bolt of the adjuster receiving member is screwed into the adjuster receiving member. While forming an upward guide protrusion on the part, the support frame,
A guide cylinder, into which the guide projection of the adjuster receiving member is fitted, is provided so as to project upward.

[Function and effect of device]

In this way, when the guide protrusion formed on the adjuster receiving member is fitted to the guide tube formed on the support frame, when the adjuster receiving member is fitted into the support frame and mounted, the support frame and the adjuster receiving member are separated from each other. Since the height dimension becomes large, not only is it easy to correct the fitting posture of the adjuster receiving member, even when the adjuster receiving member is tightly fitted to the support frame without looseness,
The adjuster receiving member is guided by the guide projection and the guide tube at the upper end portion thereof, so that the adjuster receiving member has a vertical axis line of the female screw hole without twisting between the adjuster receiving member and the support frame. It can be installed by fitting it into the support frame. In other words, the adjuster bolt can be screwed into the adjuster receiving member in a posture in which the axis of the adjuster bolt is vertical.

Further, since the guide cylinder is only formed on the support frame and the guide projection is formed on the adjuster receiving member, the support frame and the adjuster are not provided as compared with the case where the height of the support frame and the adjuster receiving member is increased as a whole. It is possible to prevent the receiving member from increasing in size.

Further, as compared with the case where the height of the support frame and the adjuster receiving member is increased as a whole, the contact area between the adjuster receiving member and the supporting frame is small, so that excessive frictional resistance between them is prevented. This is combined with the fact that twisting between the adjuster receiving member and the support frame can be prevented by the guide function of the guide protrusion, and the adjuster receiving member can be moved in the support frame with a light force. It will be possible to fit in.

Therefore, according to the present invention, the adjuster bolt is placed in a posture in which the axis of the adjuster bolt extends vertically without excessively increasing the size of the support frame or the adjuster receiving member or reducing the ease of mounting the adjuster receiving member. It has the effect that it can be attached without play.

Further, since the cover body covering the opening formed in the leg body is supported by the support piece formed in the adjuster receiving member, the cover body and the leg body are provided with processing for preventing the cover body from falling. There is no need to apply it, and therefore, there is also an effect that the labor of manufacturing the legs can be reduced.

〔Example〕

Next, an embodiment in which the present invention is applied to a desk will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a desk in which a top plate 3 is supported by a pair of left and right legs 2, and a hollow horizontal portion 4 is provided at the lower end of the leg 2 so as to project forward. .

The leg 2 is formed of a thin metal plate in a hollow shape,
A portion of the inner plate 2a near the rear end is cut out over the entire length in the vertical direction, the notched edge is bent toward the outer plate 2b, and a reinforcing plate 5 having a U-shaped cross section is fitted to both the front and rear bent pieces 2c. As a result, a vertically elongated opening 6 for inserting a cord is formed on the inner surface of each of the left and right legs 2, and the opening 6
A cover body 7 made of synthetic resin or the like for closing the opening 6 is detachably attached to the.

The cover body 7 has locking claws 8 formed on both left and right edges thereof.
Is engaged with and disengaged from the front end edge of the front-and-back bent piece 2c of the leg body 2 so that the leg body 2 can be attached and detached in the lateral direction.

Reference numeral 9 indicates an adjuster device provided at the rear end of the leg body 2. The adjuster device 9 is a metal plate supporting frame 10 fixed to the inner surface of the leg body 2, and is fitted to the supporting frame 10. The adjuster receiving member 11 to be worn, and the adjuster receiving member 1
1. The adjuster bolt 13 is screwed from below into the female screw hole 12 formed in 1. The adjuster receiving member 11 is formed of a high-strength synthetic resin such as carbon resin or glass reinforced plastic. (May be made of metal).

The support frame 10 includes a reinforcing plate 5 of the leg body 2 and an outer surface plate 2b.
By connecting the downward U-shaped receiving portion 10b to one end and the other end of the connecting portion 10a fitted between the two, the left and right hanging pieces of both the receiving portions 10b are formed symmetrically. 10c is fixed to the inner plates 2a and the outer plates 2b of the leg 2 by spot welding or the like in contact with the inner surfaces of the inner plates 2a and the outer plates 2b, and the upper surfaces of the front and rear receiving portions 10b Then, the guide cylinder 14 is formed by bulging the upper surface plate upward.

The support frame 10 is formed symmetrically in the front-rear direction in that the support frame 10 also serves as a reinforcing member at the lower end of the leg body 2.
This is because one type of support frame 10 can be shared by the left and right legs 2, and it may be formed in a simple rectangular shape in plan view and fixed to only the rear end of the legs 2. .

The adjuster receiving member 11 integrally connects a cylindrical portion 11b having a female screw hole 12 to a central portion of the bottom plate 11a so as to integrally connect the bottom plate 11a and the cylindrical portion 11b with a reinforcing rib 1.
1c and a reinforcing ring 11d that connects the reinforcing ribs 11c to each other are provided, and a guide protrusion 11e that is fitted into the guide cylinder 10d of the support frame 10 is provided at the upper end of the cylindrical portion b. Yes, the side end surface of the reinforcing rib 11c is
The horizontal positioning is performed by abutting on the inner surface of the hanging piece 11c of the receiving portion 11b of the support frame 11 and the inner surface of the end face plate of the leg 2, and by closely fitting the guide protrusion 11e to the guide cylinder 10d. The upper end of the guide rib 11c is supported by the lower surface of the receiving portion 11b of the support frame 10.

Then, on the bottom plate 11a of the adjuster receiving member 11,
A tongue-shaped lateral projection 11f projecting into the cord insertion groove 6 of the leg 2 is integrally formed, and the lateral projection 11f is formed.
Thus, the cover body 7 is supported with respect to the cord insertion groove 6. In this case, by providing a pair of left and right lateral projections 11f, the cover body 7 can be supported even when the adjuster receiving member 11 is mounted on the support frame 10 of either the left or right leg body 2.

In this configuration, to assemble the adjuster device 9,
First, the support frame 10 is fixed to the inner surface of the leg body 2, and then the adjuster receiving member 11 is fitted into the receiving portion 11b located near the rear end of the leg body 2 by hitting from below with a hammer or the like. Then, adjuster bolt 13
It may be screwed into the female screw hole 12 of the adjuster receiving member 11.

Then, when the adjuster receiving member 11 is fitted into the receiving portion 10b of the support frame 10, the guide frame 10d is provided in the support frame 10 and the guide projection 11 is provided in the adjuster receiving member 11.
Since the respective e are provided, the height dimension of the contact surface between the adjuster receiving member 11 and the support frame 10 is increased, the fitting posture of the adjuster receiving member 11 is easily corrected, and the guide protrusion 11e is provided in the adjuster receiving member 11 Since the adjuster receiving member 11 has a vertical axis line of the female screw hole 12, that is, a posture in which the entire lower end surface of the adjuster bolt 13 is in close contact with the floor surface A, since the guide function of correcting the posture of the adjuster bolt 13 is performed. Can be attached to.

Further, since the cover body 7 is supported by the adjuster receiving member 11, it is sufficient to simply form the bent piece 2c on the leg body 2, and it is not necessary to perform processing for preventing the cover body 7 from falling. Therefore, the labor for manufacturing the leg body 2 can be reduced.

If the upper end outer surface of the guide protrusion 11e of the adjuster receiving member 11 is formed in a taper shape with an upper constriction as in the embodiment, the guide function of the guide protrusion 11e can be further ensured.

The means for holding the adjuster receiving member 11 so that it cannot move upward is not limited to supporting the upper ends of the reinforcing ribs 11c by the support frame 10 as in the embodiment, and, for example, the outer peripheral edge of the bottom plate 11a is fixed to the leg body 2. Other supporting forms such as contacting the lower end surface of

The horizontal portion 4 of the leg 2 has a configuration in which a cap 15 is attached to a hollow outer member 14 with an upward opening, and a horizontal connecting member 16 is fixed with an upward opening fixed to the inner surface of the outer member 14. The connecting member 1 extends into the hollow portion of the leg body 2.
The extension part of 6 is used for the inner plate 2a and the outer plate 2 of the leg body 2.
It is fixed to b by an appropriate means such as spot welding.

In this case, a reinforcing member 17 having a generally U-shaped rearward opening in cross section is fixed to a portion of the leg body 2 near the front end, while the connecting member 16 is provided in a portion of the reinforcing member 17 where the lower ends of the left and right side plates 17a are located. The left and right side plates 16a of the connecting member 16 are bulged inward, and the bulging portions 16b of the left and right side plates 16a of the connecting member 16 and the inner side plate 2a and the outer side plate 2 of the leg body 2 are
The left and right side plates 17a of the reinforcing member 17 are inserted from above into the gap formed between the leg 2 and the reinforcing member 1.
The side plate 17a of No. 7 and the side plate 16a of the connecting member 16 are integrally spot-welded together so that the horizontal portion 4 can be firmly attached.

Further, a slit 18 is formed in the front-rear longitudinal direction so as to punch out the lower end bent portion of the bulging portion 16a of the left and right side plates 16a of the connecting member 16, and the left and right side plates of the reinforcing member 17 are formed on the lower end surface of the slit 18. By abutting the lower end surface of 17a, the leg 2 and the connecting member 16 can be accurately positioned in the vertical direction.

That is, the bulging portion 16 is formed on the left and right side plates 16a of the connecting member 16.
When b is formed by sheet metal working, the lower end portion of the bulging portion 16b cannot be bent into a right-angled cross-sectional shape, and the bent portion of the lower end portion of the bulging portion 16b has a curved cross-sectional shape. , If the slit 18 is not formed,
Since the lower end surfaces of the left and right side plates 17a of the reinforcing member 17 contact the curved bent portions of the lower end of the bulging portion 16b, the height positions of the leg 2 and the connecting member 16 may be incorrect. However, when the slit 18 is formed by punching out the bent portion of the lower end of the bulging portion 16b of the side plate 16a of the connecting member 16 as in the embodiment, the lower end surfaces of the left and right side plates 17a of the reinforcing member 17 are always Since it is possible to abut the side plate 16a of the connecting member 16 at the lower end of the slit 18, the height relationship between the leg 2 and the connecting member 16 can be set accurately.

Although the above embodiment is applied to the desk adjuster device, it is needless to say that the present invention can be applied to general furniture having a hollow leg opened downward.

[Brief description of drawings]

1 shows an embodiment of the present invention, FIG. 1 is an exploded perspective view of an adjuster device, FIG. 2 is a partial perspective view of a desk, and FIG.
III-III sectional view of the drawing, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, FIG. 5 is a sectional view taken along the line VV of FIG. 4, and FIG. FIG. 7 is a partially cutaway perspective view showing the attachment of the horizontal portion to the leg body, FIG. 8 is a side view of the leg body,
9 is a sectional view taken along line IX-IX of FIG. 8, FIG. 10 is a sectional view taken along line XX of FIG. 8, and FIG. 11 is taken along line XI- of FIG. 8 and FIG.
FIG. 12 is a cross-sectional view taken along line XI, and FIG. 12 is a perspective view showing the joint relationship between the connecting member and the reinforcing member. 1 ... Desk, 2 ... Leg, 6 ... Opening, 7 ... Cover, 9 ... Adjuster device, 10 ... Support frame, 10d ...
… Guide tube, 11 …… Adjuster receiving member, 11e ……
Guide protrusion, 11f ... Sideward protrusion, 12 ... Female screw hole, 13 ... Adjuster bolt.

Claims (1)

[Scope of utility model registration request] 1. An adjuster receiving member in which a downwardly opening support frame is fixed to the inside of the lower end of a hollow open leg of furniture, and a female screw hole into which an adjuster bolt is screwed is bored in the support frame. In the adjuster device which is fitted and mounted from below, a cord insertion opening is formed on the side surface of the leg of the furniture adjacent to the adjuster receiving member so as to extend in the vertical direction, and the opening is formed. A cover for closing the opening is fitted to the adjuster receiving member, and a lateral projection for supporting the lower end of the cover body is formed on the adjuster receiving member. While forming a guide protrusion, a guide tube to which the guide protrusion of the adjuster receiving member is fitted is provided on the support frame so as to protrude upward. Leg of the adjuster device in the furniture that.