JP4498487B2 - Leg end tool such as table - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a leg end device attached to the lower end of a column such as a table.
[0002]
[Prior art]
Conventionally, for example, when the lower end of a pillar 03 such as a table made of metal or the like is installed on the floor surface, the floor surface is not damaged or no contact noise is generated. In some cases, a leg end device made of synthetic resin may be provided at the lower end of the support so that fine adjustment can be made according to the condition.
[0003]
An example of such a leg end tool will be described with reference to FIGS. 6 and 7. First, a female threaded portion 09 is formed on the inner peripheral surface inside the lower end of the tubular column 03 that supports the lower surface of the top plate 02 of the table. Each of the supporting members 08 is provided.
[0004]
The leg end device 01 has a concave portion that can be fitted to the lower end of the support post 03 on the upper surface, and a metal male screw portion 05 that can be screwed into the female screw portion 09 of the support member 08 in the concave portion. The lower end is made of a synthetic resin grounding member 07, and the male screw portion 05 is screwed into the female screw portion 09 so that it can be attached to the lower end of the column 03, and the leg end By rotating the tool 01 and moving it up and down with respect to the support column, the height of the top board 02 can be finely adjusted to keep the top board 02 horizontal.
[0005]
[Problems to be solved by the invention]
However, in recent years, when disposing of such a table, in consideration of environmental destruction, reuse of materials, etc., there is a tendency to dispose of and dispose of different materials. Since the leg end device 01 is integrally formed with the male male screw portion 05 and the synthetic resin grounding member 07, the material of the leg end device 01 is different even though the leg end device 01 can be removed from the support post 03. It is very difficult to separate and discard the male screw portion 05 and the grounding member 07 because it takes time and cost.
[0006]
The present invention has been made paying attention to such problems, and can be attached to a column such as a table so as to be movable up and down, and can be easily separated from members of different materials. The purpose is to provide end tools.
[0009]
[Means for Solving the Problems]
The leg end device such as the table of the present invention can be moved in the axial direction of the column at the lower end of the column by screwing the male screw into the female screw unit provided at the lower end of the column such as the table. A leg end device such as a table to be attached,
A metal connecting member comprising the male screw portion and a disk-shaped metal fitting attached to the lower end of the male screw portion and provided with recesses opening outward at at least two locations on the outer periphery; and on the floor surface A grounding member made of a synthetic resin to be grounded, and a concave receiving portion for rotatably supporting the disk-shaped metal fitting around the male screw portion is formed inside the grounding member. On the peripheral surface portion, a convex portion that can be inserted vertically in the concave portion of the disc-shaped metal fitting is opposed to the concave portion, and is at least as thick as the disc-shaped metal fitting from the bottom surface of the receiving portion. at a distance from each other in providing, in at least one place between the convex portions provided on the peripheral surface portion of said receiving portion, can be fitted into the concave portion of the disc-shaped fitting, and is elastically deformable rotation stopper downward The upper surface is located slightly above the bottom surface of the receiving part. It is characterized in that it is projected to.
In this way, during normal use, the anti-rotation part is fitted in the recess of the connection member, and relative rotation between the connection member and the grounding member is reliably restricted, so that the height of the top plate can be adjusted. The grounding member is prevented from slipping at the time. Further, since the connecting member can be rotated only by pressing the rotation preventing portion downward, the ground member and the connecting member can be easily separated.
[0010]
In the leg end tool such as the table of the present invention, a tool receiving portion is preferably formed at the tip of the male screw portion.
If it does in this way, a connection member can be easily rotated only by inserting a suitable tool in the tool receiving part formed in the front-end | tip of an external thread part, and making it rotate.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, FIG. 1 shows a state in which a leg end device of the present invention is disassembled, and 1 is a metal screwed into a column such as a table. Reference numeral 2 denotes a connection member made of plastic, and 2 denotes a grounding member formed of a synthetic resin into a bottomed cylindrical shape.
[0012]
The connecting member 1 includes a male screw portion 3 that is screwed into a female screw portion (see FIG. 7) provided inside a lower end of a column that supports the back surface of the top plate such as a table, and a disk that is attached to the lower end of the male screw portion 3. The recess 4 is formed at equal intervals around the outer peripheral edge of the disc-shaped bracket 4. Further, a groove 10 that fits into the minus driver D is formed at the tip of the male screw portion 3.
[0013]
In the grounding member 2, a receiving portion 6 that is circular in plan view and is formed in a concave shape having a predetermined depth is formed so as to open upward. Since the inner diameter of the receiving portion 6 is formed to be substantially the same as the outer diameter of the disk-shaped metal fitting 4, the disk-shaped metal fitting 4 can be inserted and inserted therein. The disk-shaped metal fitting 4 is supported by the peripheral side wall 6 a of the receiving portion 6 so as to be rotatable around the male screw portion 3.
[0014]
On the periphery of the receiving portion 6, there are convex portions 7 that can pass through the recessed portion 5 of the disk-shaped metal fitting 4 in the vertical direction, corresponding to the respective recessed portions 5 in the disk-shaped metal fitting 4, and the receiving portion bottom surface 6 ′. Are spaced apart from the upper surface by the thickness of the disk-shaped metal fitting 4.
[0015]
Further, between the pair of adjacent convex portions 7 and 7 on the peripheral edge of the receiving portion 6, any concave portion 5 of the disk-shaped metal fitting 4 that is rotatably supported around the male screw portion 3 in the receiving portion 6. The anti-rotation part 8 that restricts the rotation of the disk-shaped metal fitting 4 within the receiving part 6 by being fitted inside is provided so that its upper surface is located slightly above the receiving part bottom surface 6 '. Yes. A hole 9 is formed below the rotation preventing portion 8 on the receiving portion bottom surface 6 'to allow the rotation preventing portion 8 to move downward on the free end side.
[0016]
Next, a method for separating the connecting member 1 and the grounding member 2 will be described. First, in a normal use state, as shown in FIGS. 2 and 3A and 3B, the connecting member 1 and the grounding member 2 are fitted in the receiving portion 6. Since the disc-like metal fitting 4 inserted and supported is held between the receiving portion bottom surface 6 'and the convex portion 7, the connecting member 1 and the grounding member 2 are integrally held without being separated from each other in the axial direction. Yes.
[0017]
Further, as shown in FIG. 3 (a) in particular, since any one of the recesses 5 is fitted to the rotation preventing portion 8 at this time, when the male screw portion 3 is screwed into the female screw portion. The connecting member 1 is not rotated around the male screw portion 3 with respect to the grounding member 2. Therefore, by simply rotating the grounding member 2 in the axial direction, the leg end tool can be easily attached to the column of the table, and the height can be easily adjusted.
[0018]
When separating the two members, first, the anti-rotation member 8 is pressed downward with a tool such as a screwdriver so that a part of the anti-rotation portion 8 is retracted in the hole 9. Since the engagement between the rotation preventing member 8 and the recess 5 is released by this pressing operation, the driver D is fitted into the groove 10 and the connection member 1 is rotated around the male screw portion 3 while maintaining this state. Let By this rotation, the rotation prevention unit 8 is pressed by the lower surface of the disk-shaped metal fitting 4, so that the rotation prevention unit 8 does not need to be pressed by the driver D.
[0019]
Further, as shown in FIGS. 4 and 5, the connection member 1 is rotated to a position where all the concave portions 5 correspond to the convex portions 7. At this time, if the grounding member 2 is fixed and the connecting member 1 is pulled upward, the disc-shaped metal fitting 4 is deviated from the inside of the receiving portion 6 without being obstructed by the convex portion 7, and is combined with the metallic connecting member 1. The resin grounding member 2 is separated.
[0020]
Thus, since the connection member 1 and the grounding member 2 constituting the leg end device such as the table in the present embodiment are detachably provided by so-called bayonet coupling, the connection member 1 is connected to the grounding member 2. The grounding member 2 and the connecting member 1 can be integrally attached or separated from each other with a simple operation by simply rotating them. Therefore, members of different materials can be easily separated without labor and cost. I can do it.
[0021]
In addition, since the relative rotation between the connecting member 1 and the grounding member 2 can be reliably restricted by the engagement between the concave portion 5 of the connecting member 1 and the rotation preventing portion 8 during normal use, the leg end device is rotated. Thus, it is possible to reliably prevent the grounding member 2 from slipping when the height of the top plate is adjusted.
[0022]
Furthermore, since the connecting member 1 can be rotated by fitting a flathead screwdriver D into the groove 10 provided at the upper end of the male screw portion 3, the separation work is facilitated.
[0023]
When the connecting member 1 and the grounding member 2 that are separated from each other are integrally attached, the disk-shaped metal fitting is used in a process opposite to the above-described separation work process, that is, in a state in which the concave part 5 corresponds to the convex part 7. While rotating the anti-rotation member 8 downward on the back surface of 4, the disk-shaped metal fitting 4 is fitted and inserted into the receiving portion 6, and around the male screw portion 3 until one of the recesses 5 is locked to the anti-rotation member 8. Rotate to
[0024]
In addition, the “bionette coupling” according to claim 1 of the present invention refers to the movement of the both members in the axial direction between the convex portion provided in one member and the concave portion provided in the other member. And the coupling | bonding which makes both members detachable is shown by engaging / disengaging by rotation around an axial center.
[0025]
As mentioned above, although embodiment of this invention has been described based on drawing, a concrete structure is not restricted to these embodiment, Even if there is a change and addition in the range which does not deviate from the summary of this invention, this invention. include.
[0026]
For example, the shape, quantity, and the like of the concave portion 5, the convex portion 7, and the rotation preventing member 8 can be variously modified and are not particularly limited.
[0027]
【The invention's effect】
The present invention has the following effects.
[0030]
According to the first aspect of the invention, during normal use, the rotation preventing portion is fitted in the recess of the connection member, and relative rotation between the connection member and the grounding member is reliably restricted. The grounding member is prevented from idling during height adjustment. Further, since the connecting member can be rotated only by pressing the rotation preventing portion downward, the grounding member and the connecting member can be easily separated.
[0031]
According to the second aspect of the present invention, the connecting member can be easily rotated by simply inserting and rotating an appropriate tool into the tool receiving portion formed at the tip of the male screw portion.
[0032]
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view showing a configuration of a leg end device such as a table as an embodiment of the present invention.
2 is a top view showing a state in which a leg end device such as a table in FIG. 1 is in normal use. FIG.
3A is a cross-sectional view taken along the line II in FIG. 2, and FIG. 3B is a cross-sectional view taken along the line II-II.
4 is a top view showing a state in which members constituting leg end devices such as a table in FIG. 1 are separable. FIG.
5 is a sectional view taken along line III-III in FIG.
FIG. 6 is an overall perspective view showing a table on which a leg end device as a prior art of the present invention is configured.
7 is a cross-sectional view of a tip end of the column configured in the table of FIG. 6 and a partially cutaway front view of a leg end tool.
[Explanation of symbols]
1 Connection member
2 Grounding member
3 Male thread
4 Disc-shaped bracket
5 recesses
6 receiving part
6 'Bottom of receiving part
6a peripheral wall
7 Convex
8 Anti-rotation part
9 holes
10 groove
D flat head screwdriver

Claims (2)

A leg end device such as a table that is attached to the lower end of the column so as to be movable in the axial direction of the column by screwing the male screw part into the female screw unit provided at the lower end of the column such as a table. ,
A metal connecting member comprising the male screw portion and a disk-shaped metal fitting attached to the lower end of the male screw portion and provided with recesses opening outward at at least two locations on the outer periphery; and on the floor surface A grounding member made of a synthetic resin to be grounded, and a concave receiving portion for rotatably supporting the disk-shaped metal fitting around the male screw portion is formed inside the grounding member. On the peripheral surface portion, a convex portion that can be inserted vertically in the concave portion of the disc-shaped metal fitting is opposed to the concave portion, and is at least as thick as the disc-shaped metal fitting from the bottom surface of the receiving portion. A rotation preventing portion that can be fitted into the concave portion of the disk-shaped metal fitting and can be elastically deformed downward at least at one location between the convex portions provided on the peripheral surface portion of the receiving portion. The upper surface is located slightly above the bottom surface of the receiving part. Legs end tool such as a table, characterized in that it is projected to. Leg end tool such as a table according to claim 1, the tool receiving portion is formed at the tip of the male threaded portion.

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