JP4447688B2 - Furniture leg ends - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a furniture leg end attached to a lower end of furniture.
[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. 5 and 6. First, a female threaded portion 09 is formed on the inner peripheral surface of the lower end of the tubular support 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 it can be attached to a column such as a table so as to be movable up and down, and can easily separate members of different materials from each other. It aims to provide a leg end tool.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a furniture leg end device of the present invention is a furniture leg end device that is screwed into and attached to a lower portion of a furniture body,
A metal bolt in which a head is provided at one end, and an external thread is formed on an outer peripheral surface at least near the end opposite to the head;
A metal nut that can be screwed into the male screw part;
An insertion passage that allows the bolt to be inserted is provided in the vertical direction, and a synthetic resin base that is provided with an accommodation recess that can accommodate the head of the bolt;
A rotation restricting portion for restricting the rotation of the nut is provided at an upper portion of the base portion, and the base portion protrudes above the insertion passage, and the base portion is a head of the bolt. It is characterized by being clamped by a part and a nut.
According to this feature, the bolt inserted into the insertion passage and the nut screwed into the male screw portion of the bolt are simply rotated around the axis without pressing the nut with a tool or the like as appropriate. Then, a part of the base is sandwiched from above and below by the head and nut of the bolt, and the bolt and base are firmly integrated, and if the nut is removed from the bolt, it is combined with the metal bolt and nut. Since the base made of resin can be easily separated, members of different materials can be separated and discarded without labor and cost.
[0009]
In the furniture leg end device of the present invention, the rotation restricting portion is a concave portion in which the nut is non-rotatably fitted, and at least a part of an upper end surface of the nut housed in the concave portion is the concave portion. It is preferable to protrude upward from the upper end surface.
By doing in this way, at the time of attachment to the furniture body, the upper part of the base made of synthetic resin does not directly contact the peripheral edge of the female screw part of the furniture body, so that the base is not damaged, Since the nut is not exposed to the outside, the appearance is improved.
[0010]
The furniture leg end device of the present invention is preferably provided with a plurality of ribs around the head of the bolt housed in the housing recess.
By doing in this way, while the installation stability of a base improves, the weight reduction of a base main body can be achieved, maintaining intensity | strength.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the present invention will be described below with reference to FIGS. 1 to 4. First, FIG. 1 shows a column 3 of a furniture body and a leg end 1 attached to the lower end of the column 3. 2 shows a state in which the leg end tool 1 is attached to the lower end. The leg end tool 1 includes a synthetic resin base portion 9 placed on the floor, a shaft portion 10b having a male screw portion 2 formed on the outer peripheral surface on one end side, and a cylindrical body 14 whose outer diameter will be described later. Further, it is composed of a metal bolt 10 having a large-diameter head 10a and a hexagonal nut 11 screwed into the male screw portion 2.
[0012]
A hexagonal groove 10 c is provided on the upper surface of the head 10 a of the bolt 10. Further, the shaft portion 10b has a length that partially protrudes upward from the upper end portion of the insertion passage 12 when the shaft portion 10b is inserted into the insertion passage 12 described later.
[0013]
The base portion 9 is a hollow container having a generally inverted mortar shape that tapers toward the lower portion, and an insertion passage through which the shaft portion 10b of the bolt 10 can be inserted in a state of being rotatable around the axis at the center portion. 12 is provided so as to extend in the vertical direction.
[0014]
At the upper part of the base portion 9, a recess 13 as a rotation restricting portion whose plan view shape is substantially the same as the outer shape of the hexagon nut 11 and whose depth is slightly shallower than the height of the hexagon nut 11 communicates with the upper end portion of the insertion passage 12. It is provided to do. An accommodation recess 9 a that can accommodate the head 10 a of the bolt 10 is formed in the lower portion of the base 9.
[0015]
A plurality of ribs 15 are provided radially from the center to the outside in the housing recess 9 a, and the ground contact surface 16 of the leg end device 1 is formed by the lower end surface of the ribs 15 and the lower end surface of the base 9. Is formed.
[0016]
The central portions of the ribs 15 are notched, and a storage portion 17 into which the head portion 10a of the bolt 10 can be fitted is provided below the base portion 9 from the inner side surface of the ribs 15 and the lower end surface 14a of the cylindrical body 14. It is formed so as to open, and when the shaft 10 b is inserted into the insertion passage 12 and the head 10 a receiving surface 10 d is in contact with the lower end surface 14 a of the cylindrical body 14, the head 10 a is below the grounding surface 16. It is designed not to protrude.
[0017]
As shown in FIGS. 3 and 4, the shaft portion 10 b of the bolt 10 is inserted into the insertion passage 12 from below the base portion 9, and is screwed into the hexagon nut 11 that is non-rotatably fitted in the recess 13 and tightened. Thus, a part of the base 9 is sandwiched from above and below by the head 10a and the hexagon nut 11, and the bolt 10 and the base 9 are firmly integrated.
[0018]
In addition, a female screw portion 5 into which the male screw portion 2 of the leg end tool 1 configured as described above can be screwed is formed at the lower end portion of the column 3 provided in the furniture body. Therefore, the bolt 10 of the leg end device 1 is screwed into the female screw portion 5, and the leg end device 1 can be attached to the support column 3 by rotating the leg end device 1 around the axis, and the vertical end motion The furniture body can be adjusted up and down.
[0019]
In addition, the cylindrical cover body 8 latched by the supporting member 6 by the latching piece 7 is attached to the lower end of the support | pillar 3, and this connection part is covered.
[0020]
In the leg end tool 1 of the present embodiment configured as described above, the bolt 10 inserted into the insertion passage 12 of the base portion 9 is screwed into the hexagon nut 11 fitted in the recess 13. By tightening, the bolt 10 and the base 9 are firmly integrated, and the bolt 10 and the base 9 can be separated only by an easy operation of loosening and removing the bolt 10 and the hexagon nut 11. ing. That is, during normal use, even if a load of the furniture body is applied to the leg end tool 1, the bolt 10 and the base 9 are firmly integrated, so the bolt 10 does not rattle against the base 9. In addition to the stable support of the furniture body, the members of different materials constituting the leg ends can be easily separated at the time of disposal.
[0021]
Since the hexagonal nut 11 in this embodiment is non-rotatably fitted in the recess 13, the base 9 and the bolt 10 can be attached / detached only by rotating the bolt 10 with the base 9 fixed by hand. Not only can this be done, but the hexagon nut 11 will not be exposed to the outside, so the appearance will be improved. Since the hexagonal groove 10c is provided in the upper part of the head 10a, the bolt 10 and the hexagonal nut 11 are tightened or loosened by fitting and turning a tool such as a hexagonal wrench in the hexagonal groove 10c. Work can be done easily.
[0022]
In addition, since a part of the upper surface of the hexagon nut 11 fitted in the recess 13 protrudes slightly above the upper end of the base portion 9, the shaft portion 10 b is screwed deeply into the female screw portion 5 of the column 3. When done, the base 9 does not contact the support member 6 directly. That is, the upper part of the base 9 is not damaged by repeated vertical adjustment of the leg end tool 1.
[0023]
Since the insertion path 12 is formed long in the vertical direction via the cylindrical body 14, the shaft portion 10b is stably supported.
[0024]
The base portion 9 is formed in a substantially inverted mortar shape that tapers toward the lower portion, and a plurality of ribs 15 are provided inside, and the lower surface of the rib 15 and the lower surface of the base portion 9 are in contact with each other. Since the ground 16 is formed, the stability on the floor is improved, and the weight can be reduced while maintaining the strength.
[0025]
As mentioned above, although embodiment of this invention has been described based on drawing, a concrete structure is not restricted to such embodiment, Even if there exists a change and addition in the range which does not deviate from the summary of this invention. It is included in the present invention.
[0026]
For example, in the present embodiment, the concave portion 13 into which the hexagon nut 11 can be inserted in a non-rotatable manner is provided on the upper portion of the base portion 9. Further, the shape of the base 9 is not limited to the shape as in the present embodiment.
[0027]
【The invention's effect】
The present invention has the following effects.
[0028]
(A) According to the first aspect of the present invention, the bolt is inserted into the insertion passage and the nut screwed into the male screw portion of the bolt without pressing the nut appropriately using a tool or the like. Just by rotating around the shaft, a part of the base is sandwiched from above and below by the bolt head and nut, and the bolt and base are firmly integrated, and if you remove the nut from the bolt, Since the bolts and nuts and the base made of synthetic resin can be easily separated, members of different materials can be separated and discarded without labor and cost.
[0030]
( B ) According to the invention of claim 2 , the upper portion of the base made of synthetic resin does not directly contact the peripheral edge of the female screw portion of the furniture main body when attached to the furniture main body. Not only is it not damaged, but the appearance is improved because the nut is not exposed to the outside.
[0031]
( C ) According to the invention of claim 3 , since the strong load applied from above is distributed to the leg end device, the weight can be reduced while securing the strength.
[0032]
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a furniture leg end device according to an embodiment of the present invention and a lower end portion of furniture to which the leg end device is attached.
FIG. 2 is a cross-sectional view showing a state where the furniture leg end tool in FIG. 1 is attached to the furniture.
3 is an exploded perspective view of the furniture leg end device in FIG. 1. FIG.
FIG. 4 is an exploded perspective view of FIG. 3 viewed from the opposite direction.
FIG. 5 is a perspective view showing a state in which a furniture leg end device as a conventional technique is mounted on a table.
6 is a cross-sectional view of the furniture leg end tool in FIG. 5. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Leg end tool 2 Male thread part 3 Support | pillar 5 Female thread part 6 Support member 7 Locking piece 8 Cover body 9 Base part 9a Accommodating recessed part 10 Bolt 10a Bolt head part 10b Shaft part 10c Hexagon groove 10d Receiving surface 11 Hexagon nut (nut)
12 Insertion passage 13 Recess 14 Cylinder 14a Lower end surface 15 Rib 16 Grounding surface 17 Storage portion

Claims (3)

A furniture leg end device that is screwed into and attached to the lower part of the furniture body,
A metal bolt in which a head is provided at one end, and an external thread is formed on an outer peripheral surface at least near the end opposite to the head;
A metal nut that can be screwed into the male screw part;
An insertion passage that allows the bolt to be inserted is provided in the vertical direction, and a synthetic resin base that is provided with an accommodation recess that can accommodate the head of the bolt;
A rotation restricting portion for restricting the rotation of the nut is provided at an upper portion of the base portion, and the base portion protrudes above the insertion passage, and the base portion is a head of the bolt. A leg end device for furniture characterized by being clamped by a portion and a nut. The rotation restricting portion is a concave portion in which the nut is non-rotatably fitted, and at least a part of the upper end surface of the nut accommodated in the concave portion protrudes upward from the upper end surface of the concave portion. Item 2. A leg end tool for furniture according to Item 1 . Furniture foot end tool according to claim 1 or 2 ribs several double is provided in the accommodating recess.

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