JP2001128744A - Mounting structure of support - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of an adjuster capable of supporting properly a desk body without backlash without requiring the adjuster to be accurately processed. SOLUTION: In mounting an adjuster 1 so as to support a desk body 2 raisably and lowerably, the adjuster 1 is provided with a screw shaft 11, and the desk body 2 is provided with a screw hole 63 into which the screw shaft 11 can be screwed, and a slider 7 to regulate swing of the screw shaft 11 in a position axially displaced axially from the screw hole 63 is provided between the desk body 2 and the screw shaft 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support mounting structure which is useful when applied to an adjuster for supporting a desk or a table.

[0002]

2. Description of the Related Art A typical support for supporting a furniture body is an adjuster. The adjuster generally includes a screw shaft having a grounding portion at the lower end side of the leg, and a nut member attached to the furniture body side and into which the screw shaft is screwed. The screw shaft is operated to feed the nut member. By doing so, the level of the leg can be adjusted.

[0003]

However, in the prior art, the screw shaft is only engaged with the furniture body at one place via the nut member. For this reason, when there is a processing error in the screw pitch, when the screw is too thick to achieve high processing accuracy, or when the screw shaft and the nut member are loosely engaged, etc., the screw shaft may run around the nut member as a fulcrum. And the like, which makes it difficult to properly support the load for a long period of time. Therefore, there is a problem that extremely high fitting accuracy is required between the screw shaft and the nut member, which has a great adverse effect on the manufacturing cost and the assembling work of the parts.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to easily and properly attach a screw shaft of a support represented by an adjuster to a furniture main body without impairing its screw feed function. It is designed to be supported.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS For this purpose, the support mounting structure according to the present invention has a structure in which a support for supporting a furniture body in a vertically movable manner is mounted on the furniture body, and the support has a screw shaft. The furniture main body has a screw hole into which the screw shaft can be screwed, and at least one of the positions displaced in the axial direction from the screw hole, between the furniture main body and the screw shaft, a restriction for restricting the deflection of the screw shaft. Means is provided.

According to such a mounting structure, the screw shaft of the support is supported by the furniture main body in a bilateral manner via the screw holes and the restricting means. Occurrence of a run-out around the supporting position is greatly restricted as compared with the case where the supporting position is supported. For this reason, according to the present invention, it is possible to stably support the furniture body for a long period of time while maintaining a proper posture of the support without requiring a very high processing accuracy for the screw shaft or the like. In particular, since a part of the screw shaft is supported in the screw hole, it is possible to effectively avoid hindering the screw feed function in supporting the screw shaft.

As a specific embodiment, the furniture main body is provided with a pipe-like leg, and a screw shaft is inserted into the leg from the lower end side. A preferred embodiment of the regulating means is a slider provided on the side of the screw shaft opposite to the ground contact end, wherein the slider is slidably inserted into the inner surface of the leg.

[0008] In order to facilitate the mounting and separation and disposal of the slider, the screw shaft is made of metal and the slider is made of resin, and the slider is removably engaged with the screw shaft. Is preferred. As a preferred mode of the engagement, a groove is provided on the outer periphery near the non-ground end of the screw shaft, while a slider is provided with a cylindrical portion fitted to the screw shaft, and a part of the inner periphery of the cylindrical portion is elastically formed. There is one provided with a projection that engages with the groove of the screw shaft.

In this case, in order to make the separation particularly easy, it is necessary to provide an operating portion for releasing the engagement between the projection and the groove of the screw shaft integrally with the projection. desirable. As another embodiment of the regulation means,
A member provided integrally or integrally with the member provided with the screw hole can also be mentioned.

[0010] Specifically, it is preferable that the regulating means is a screw hole into which a screw shaft can be screwed similarly to the screw hole. As a preferable application example of the present invention, a furniture main body having a plurality of legs and a support body being an adjuster that supports each leg so as to be individually adjustable can be cited. In particular, when the furniture main body is provided with a top plate and the adjuster is provided with a movable range in which the height of the top plate can be adjusted, the screw shaft is long and easily shakes. For,
By applying the present invention, a particularly useful effect can be expected.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. The adjuster 1 which is the support of this embodiment is
The present invention is applied to the desk shown in FIGS. 1 and 2, and is arranged at a position for supporting the four leg posts 3 constituting the desk main body 2 so that they can be individually raised and lowered.

The desk body 2 has a frame 4 between the upper ends of the leg posts 3.
And the frame body 4 supports the top plate 5. The leg support 3 has a square pipe shape, and the upper end is formed at the four corners of the rectangular top plate 5 or at the lower surface in the vicinity thereof. They are arranged facing each other. On the other hand, the frame body 4 includes a pair of side frame members 41 connecting the facing surfaces in the vicinity of the upper ends of the front and rear leg posts 3 along the depth direction, and the vicinity of the upper ends of the left and right leg posts 3 arranged on the rear end side. And a reinforcing frame member 43 for connecting along the width direction between the opposing surfaces slightly behind the center of the left and right side frame members 41 along the width direction. Each of them is restrained together with each leg support 3 to form a self-supporting structure. The frame members 41 and 42 have rail groove portions 41a and 42a opened inward, and the frame member 43 also has rail groove portions 43 on both sides.
a is opened. In this embodiment, the rail groove portions 41 are provided at two locations before and after the left and right side frame members 41, respectively.
bracket 51 having a top plate supporting surface 51a by utilizing a
And a bracket 51 having a top plate supporting surface 51a is also attached to the center of the reinforcing frame member 43 using the rail groove 43a.
The top plate 5 is arranged on the top plate support surface 51a, and is screwed and fixed from below.

On the other hand, the adjuster 1 in this embodiment
As shown in FIG. 3 and FIG. 4, a metal screw shaft 11 having a resin grounding portion 12 on the lower end side is mainly composed of two portions displaced in the axial direction of the screw shaft 11. Are supported by the leg posts 3 and attached. More specifically, the screw shaft 11 constituting the adjuster 1 will be described.
Has a deformed portion 11a having an oval cross section at the lower end side, and the grounding body 12 has a deformed concave portion 12a corresponding to the deformed portion 11a, and the deformed portion 11a and the deformed concave portion 12a are fitted. Thereby, the grounding body 12 is attached to the screw shaft 11. The outer surface of the grounding body 12 has a hexagonal operation portion 12b which can be operated by using a spanner or the like.
It has been.

The screw shaft 11 is provided with a groove 11b on the outer periphery near the upper end and a head 11c without a screw groove on the tip end thereof. From the head 11c to the groove 11b
The slider 7 is attached to a portion extending over the area.
As shown in FIGS. 4 to 6, the slider 7 has a cylindrical outer cylinder portion 71 having an outer diameter capable of substantially simultaneously contacting four surfaces of the inner surface 31 of the leg post 3 having a square pipe shape. Cylinder 7
And a cylindrical inner cylinder 72 having an inner diameter that fits into the head 11c of the screw shaft 11 and that is located inside the inner cylinder 1. A pair of protrusions 72a elastically engaged with the groove 11b at a position fitted to the head 11c of the screw shaft 11 are provided at the opposed positions. More specifically, the projection 72a has a substantially triangular shape such that the projection 72a becomes a straight line when the shaft portion 11 is inserted and becomes a reverse line when the shaft portion 11 is pulled out, so that the projection 72a elastically contacts the lower surface of the head 11c when engaged. Is set to. At this position, the upper surface 11c1 of the head 11c is
Abuts against the lower surface 7x of the slider 7 so that the slider 7 is fixed to the shaft portion 11. The projections 72a are provided with operation pieces 72b integrally extending to the outside of the inner cylinder 72, and these operation pieces 72b are moved in opposite directions as shown by imaginary lines in FIG. By operating, the projections 72a can be released from the groove 11b.

Prior to mounting the slider 7 on the screw shaft 11, the nut member 6 described above is mounted on the screw shaft 11. This nut member 6
A prismatic fitting portion 61 that can be fitted to the inner periphery 31 of the leg support 3.
And the lower surface 3 of the leg post 3 on the lower end side of the fitting portion 61.
And a flange portion 62 that is disposed in close contact with the screw shaft 2, and has a screw hole 63 at the center thereof, into which the screw shaft 11 fits. Then, with the nut member 6 and the screw shaft 11 fitted together and the slider 7 attached to the tip, the slider 7 is slid and inserted into the inner surface 31 of the leg post 3, and the nut member 6 is fitted at the further pushed position. The joint portion 61 can be fitted to the inner surface 31 of the leg post 3.

In this embodiment, a cover 8 is arranged at a position covering the outer periphery of the leg support 3. The cover body 8 has a shape of a square pipe slightly thicker than the leg post 3, and a close contact member 8 a for filling a gap with the leg post 3 is attached to an inner surface on an upper end side, and an inner surface on a lower end side is formed. It is arranged closely on the outer peripheral surface of the flange 62 of the nut member 6, and comes into contact with the outer surface of the leg support 3 via the close member 8 a and directly on the outer peripheral surface of the flange 62 of the nut member 6 at two points. It can slide up and down without rattling while sliding. In a state where no operating force is applied, the cover body 8 is held in a state where the cover body 8 cannot be dropped on the leg support 3 by the close contact force of the close contact member 8a.

At the lower end of the cover 8, a movable blind member 9 for covering the grounding body 12 is disposed.
The movable blindfold member 9 is a stepped cylindrical body supported by a holder 90 inserted in close contact with the inner surface on the lower end side of the cover body 8, and a claw portion protrudingly provided on the inner periphery of the holder 90. The position where the hook 90a and the claw 9a projecting outward from the upper end of the movable blindfold member 9 are engaged with each other is defined as a lower end position. The position where the portion 90b abuts is set as the upper end position, and the vertical movement is allowed between them. And
When the leg support 3 is at the lowest position, the movable blindfold member 9 can be lifted to insert a wrench or the like through a gap opened to the side, and perform a screw feed operation in connection with the operation unit 12b of the grounding body 12. I can do it. In this embodiment, the effective feed amount in a range where the screw shaft 11 and the nut member 6 do not come off is set to about 80 mm, which is much larger than a normal adjuster adjustment level.

That is, the adjuster 1 of this embodiment is
After changing the height of the top plate to a large width, individual level adjustments can be made to respond to irregularities on the floor. For example, first, from the state of FIG. 4 and FIG. 8 (solid line) in which the top plate 3 is at the lowest position, the movable blindfold member 9 is lifted so that the operation unit 12b of the grounding body 12 is exposed to the side. When the screw shaft is rotated in a required direction by operating a wrench (not shown) with the wrench 12b, the nut member 6 is fed in the axial direction of the screw shaft 11 as shown in FIG. Until the nut member 6 rises to the position where the nut member 6 does not come into contact with the slider 7 (a position indicated by an imaginary line in FIG. 8), the amount of protrusion of the grounding body 12 from the leg post 3, and thus the entire length of the leg post 1 The amount can be adjusted. If such an operation is performed on each leg support 1 to the same extent, the height of the top plate can be changed, for example, in the range of 680 mm to 760 mm.

After the height of the top plate 3 is adjusted in this manner, when the desk is arranged with the ground surface of the leg support 1 grounded on the floor F, an adjustment error or unevenness of the floor surface occurs. When stable horizontal accuracy cannot be obtained on the top plate surface due to the above factors, a spanner is hung only on the necessary operation portion 12b of the leg support 1 in the same procedure as described above, and the grounding body 12 is moved by a very small amount. If operated, the level can be individually adjusted for each leg support 1.

While performing such a function, the adjuster 1 of the present embodiment supports the two positions displaced in the axial direction of the screw shaft 11 on the leg support 3 via the nut member 6 and the slider 7. Since the screw shaft 11 is supported at only one location in a cantilever manner, a situation in which the support position swings at the fulcrum due to the fulcrum and rattling is greatly restricted. For this reason, according to this embodiment, the screw shaft 11 and the screw hole 63 do not require very high processing accuracy, and the desk body 2 is stably supported for a long period of time while maintaining the appropriate posture of the adjuster 1. can do. As a result, it is possible to greatly reduce the cost of parts and the labor involved in assembly as compared with the related art.

The leg support 3 is in the form of a pipe,
Since the screw shaft 11 is inserted into the leg support 3 from the lower end side, the support portion is not exposed to the outside, and the appearance of the desk can be kept in an extremely good state. In particular, leg support 3
A nut member 6 into which the screw shaft 11 can be screwed is provided at the lower end of the screw shaft, and a part of the screw shaft 11 is supported on the leg support 3 via the nut member 6, so that parts necessary for the screw feed mechanism are effectively used. As a result, the screw shaft 11 can be supported, and by directly supporting a portion that causes backlash due to runout, the support state can be stabilized.

In addition, a slider 7 is mounted on the side of the screw shaft 11 opposite to the ground, and slidably inserted into the inner surface of the leg post 3, and another part of the screw shaft 11 is connected to the leg post 3 via the slider 7. Not only makes it easy to secure an effective support width for supporting the screw shaft 11 in a double-supported manner, but also unduly restricts the stroke of the screw shaft 11 with respect to the nut member 6. The adjuster function can be effectively secured by supporting the position where the adjustment is not performed.

Further, the screw shaft 11 is made of metal, the slider 7 is made of resin, and the slider 7 is
Since the slider 7 is detachably engaged with the slider 7, the slider 7 can be easily attached or separated and discarded, and the labor involved in assembling and disassembling can be effectively reduced. In addition, as a mode of engagement in this case, a groove 11b is provided on the outer periphery of the screw shaft 11 near the non-ground end,
The slider 7 is provided with an inner cylindrical portion 72 fitted to the screw shaft 11,
The groove 1 of the screw shaft 11 is formed on a part of the inner cylinder 72 by elasticity.
Since the projections 72a associated with 1b are provided, the structure is extremely simple, and the engagement in the axial direction can be ensured.

In addition, since the operating portion 72b capable of releasing the engagement with the projection 72a is provided, sorting can be performed particularly easily. In particular, the adjuster 1 to which the mounting structure of this embodiment is applied is attached to a desk and can be individually attached to a plurality of leg posts 3 and is used in a large amount. The effect is remarkable.

In addition, the adjuster 1 of this embodiment is provided with not only the adjuster adjustment range but also a movable range in which the height of the top plate can be adjusted, and the screw shaft 11 is long and easily oscillates. Since these are used, the effects can be exerted by applying the present invention. The specific configuration of each part is not limited to those in the illustrated embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in FIGS. 9 and 10, the restricting means is a screw hole 107, and the screw member 107 is a nut member 161 which is a common member together with a screw hole 163 that supports the screw shaft 11 on the side close to the floor surface.
Are provided integrally. This nut member 16
1 is made in a half-split state by, for example, resin, and forms a hollow portion 161a inside by abutting,
The screw holes 107 and 163 are provided at the portions that become the upper wall 161b and the bottom wall 161c. Unlike the slider 7 of the above embodiment, the screw holes 107 are attached to the leg posts 3 with the screw feed operation. It will rise with it. Such a support structure needs to make the screw shaft 11 longer, but on the other hand, it is possible to expect the effect of more accurately preventing rattling due to runout, and to simplify the support structure. Also, as described above, the nut member 16
Instead of providing the screw hole 107 in the upper wall 161b, a simple through hole 207 as shown in FIG. 11 is provided, and the inner surface of the through hole 207 is closely arranged around the screw shaft 11 so as to function as a regulating means. Even with a simpler structure,
It can function effectively as a means for restricting the run-out of the screw shaft 11.

[0026]

The present invention is embodied in the form described above and has the following effects. That is, the mounting structure of the support according to the present invention is configured such that the axially displaced position of the screw shaft constituting the support is supported at least bilaterally by the screw holes and the regulating means. Even if the assembly accuracy is not so high or cannot be provided, it is possible to secure a proper posture with no deflection of the support, and as a result, a structure capable of stably supporting the furniture body for a long period of time. An extremely useful effect is achieved that can be realized while significantly reducing the cost of parts and the labor involved in assembly. At this time, since the screw hole is used as one of the support elements of the screw shaft, it is possible to effectively use the components necessary for the screw feed mechanism and realize the support state of the screw shaft without impairing the screw feed function, The occurrence of shake can be effectively suppressed by directly supporting the drive unit.

In particular, when the furniture main body is provided with a pipe-shaped leg and the screw shaft is inserted into the leg support from the lower end side, the support portion is not exposed to the outside. It is possible to maintain the appearance of the desk in a good state. In addition, if the regulating means is a slider, and this slider is attached to the opposite end of the screw shaft on the side opposite to the ground and inserted into the leg, an effective support width for the screw shaft is secured without hindering the effective stroke of the screw shaft. can do.

At this time, if the screw shaft is made of metal and the slider is made of resin which can be detachably attached to the screw shaft, the slider can be easily attached and separated and discarded, thereby further reducing the labor involved in assembling and disassembling. Can be achieved. Further, as a mode of engagement in this case, if the groove provided on the screw shaft and the projection provided on the inner periphery of the slider are engaged with each other, the structure is simple and the engagement between the two in the axial direction is improved. The state can be assured.

In addition, by providing an operating portion that can release the engagement integrally with the projection, the convenience of sorting can be effectively improved. On the other hand, regulation means
If the member provided with the screw hole is provided integrally or integrally, the support structure can be simplified. In particular, if the regulating means is a screw hole, a more accurate support state can be achieved. Can be expected.

Furthermore, if the supporter is an adjuster that can be individually attached to a plurality of legs, the effect of the present invention will be remarkable due to the large amount of use. In particular, the adjuster
In the case of a large-stroke and easy-to-runout that also serves as a top plate height adjustment function, the effect can be exerted by applying the present invention.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing one embodiment of the present invention.

FIG. 2 is a perspective view in which a part of the embodiment is omitted.

FIG. 3 is an exploded perspective view of the leg support of the embodiment.

FIG. 4 is a vertical sectional view of the leg support.

FIG. 5 is an enlarged view of a main part of FIG. 4;

FIG. 6 is a sectional view taken along line VI-VI in FIG. 5;

FIG. 7 is an operation explanatory view corresponding to FIG. 4;

FIG. 8 is a front view schematically showing the operation of the present invention.

FIG. 9 is a longitudinal sectional view showing another embodiment of the present invention.

FIG. 10 is a partially exploded perspective view of FIG. 9;

FIG. 11 is a longitudinal sectional view showing still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Support body (adjuster) 2 ... Furniture main body (desk main body) 3 ... Leg support 5 ... Top plate 6 ... Nut member 7 ... Restriction means (slider) 11 ... Screw shaft 12 ... Ground part 11b ... Groove part 63 ... Screw hole 72a ... Projection 107 ... Restriction means (screw hole) 163 ... Screw hole 207 ... Restriction means (through hole)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koji Morita F-term (reference) in KOKUYO Co., Ltd. 61-1 Oimazato Minami, Higashinari-ku, Osaka 3B053 ND01 NE07 NE08 NK01 3B069 AA04

Claims (10)

[Claims] 1. A mounting structure of a support for supporting a furniture main body so as to be able to move up and down, wherein the support has a screw shaft, and the furniture main body has a screw hole into which the screw shaft can be screwed. A mounting structure for a support, wherein a restricting means for restricting runout of the screw shaft is provided between the furniture main body and the screw shaft at at least one position displaced in the axial direction from the screw hole. 2. The mounting structure according to claim 1, wherein the furniture body has a pipe-shaped leg, and a screw shaft is inserted into the leg from a lower end side. 3. The supporting member according to claim 2, wherein the restricting means is a slider provided on the side of the screw shaft opposite the ground contact end, and the slider is slidably inserted into the inner surface of the leg. Mounting structure. 4. The support according to claim 3, wherein the screw shaft is made of metal, the slider is made of resin, and the slider is detachably engaged with and attached to the screw shaft. Body mounting structure. 5. A groove is provided on the outer periphery of the screw shaft near the non-grounding end, and a cylindrical portion is provided on the slider to be fitted to the screw shaft. 5. The mounting structure for a support according to claim 4, further comprising an engaging projection. 6. The mounting structure for a support according to claim 5, wherein an operating portion is provided integrally with the projection for releasing the engagement between the projection and the groove of the screw shaft. 7. The support mounting structure according to claim 1, wherein the restricting means is provided integrally or integrally with the member provided with the screw hole. 8. The mounting structure for a support according to claim 7, wherein the restricting means is a screw hole into which a screw shaft can be screwed similarly to the screw hole. 9. The furniture body has a plurality of legs,
8. The apparatus according to claim 1, wherein the support is an adjuster that supports each leg so as to be individually adjustable.
Or the mounting structure of the support according to 8. 10. The mounting structure according to claim 9, wherein the furniture body has a top plate, and the adjuster has a movable range in which the height of the top plate can be adjusted.