JP2001120375A - Separable support leg for furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a separable support leg for built-up furniture capable of separating structural parts to make them reusable and separately disposable. SOLUTION: The furniture is provided with a support bolt (16) screwed from the upper end side into the leg end or the bottom end to be adjustable in the height and upper and lower plastic cases (20, 30; 40, 50; 60, 70) holding and lapping the lower end head (14) of the support bolt (16). The lower end head (14) of the support bolt is lightly pressed in an inner insertion hole (22) formed in at least one of the upper and lower plastic cases (20, 30) and fixed therein. The upper and lower plastic cases (20, 30) have a fitting part (18) in which the cases are separably fitted and connected to each other. The support bolt (16) and the upper and lower plastic cases (20, 30) can be separated by separation of the cases at the fitting part (18).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support leg for furniture and, more particularly, to a furniture which is formed by assembling parts such as a support bolt and an upper and lower plastic case and which has a separable structure as required. The present invention relates to a separable support leg of the same type.

[0002]

2. Description of the Related Art In office desks, home and office furniture, feet whose height can be adjusted by screw engagement are attached to the lower or lower ends of legs on the installation floor side, and a plurality of legs are stably mounted on the floor. Installation has been done conventionally. Examples of such conventional furniture adjusting feet are disclosed in, for example, Japanese Patent Publication No. 4-46.
No. 125, JP-A-7-243421 and the like.

The furniture adjusting foot disclosed in the Japanese Patent Publication No. 4-46125, which is mounted on a furniture leg, can adjust the height of the foot relative to a furniture mounting surface such as a floor surface even when a load due to the weight of the furniture is applied. Can be performed easily. However, this furniture adjusting foot employs a configuration in which the lower end head of a screw stud screwed to the lower end of the furniture leg is embedded and fixed in the resin foot body during the molding process. And the resin foot body has an inseparable structure. For this reason, in the case of this type of furniture adjustment feet, when the furniture itself is discarded due to disposal, etc., or when it is discarded due to aging due to long-term use, etc., the non-separable structural member is left as it is. This means that the metal screw stud and the resin foot body must be disposed of as a single piece despite the dissimilar materials.

On the other hand, in the support leg disclosed in the latter publication, a hexagonal headed bolt is screwed into a female screw formed on the bottom end surface of the supported object, and the head of the bolt is screwed into a hexagonal hole of the pedestal. A plurality of pedestals having a hexagonal hole of a size that can be fitted and seated with a plurality of types of hexagonal head bolts having different lengths and screw diameters and a head of the bolt are formed by forming the article support legs by being seated together, The combination of these bolts and pedestals is selected and used according to the size of the female screw hole on the bottom end face on the supported object side.It has the advantage of forming support legs that are easy to manufacture, store, and transport. Since the headed bolt is fitted and seated in the fitting hole of the pedestal formed as a single part by press-fitting, the supported object is moved in the process of being mounted on the supported object and used. In some cases, the bolt is subjected to a lateral load. There is fear that causes disengaged from the base, in particular, by fitting degree between hexagonal bolt head and hexagon socket, there is a possibility that withdrawal easily occur a disadvantage that lacks product stability.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems of the conventional supporting legs for furniture, and at the same time, to recycle the recent industrial products. In accordance with the requirements, the assembled furniture legs can be separated into component parts, collecting and reusing recyclable parts and disposing only non-reusable parts or making them into raw materials by crushing. To provide separable support feet for furniture that can be used.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a support bolt screwed to a supported object such as furniture and a hexagonal bolt head at the lower end of the support bolt are stably used when the present invention is used. It is composed of three parts: an upper and lower plastic case that can be attached to the supported object without gripping and fixing of the support bolts by clamping and fixing, and can be separated by simple operation when necessary, including when disposing of the equipment. And a separable support leg for furniture that can be separated into respective structural parts and subjected to recycling or disposal.

That is, according to the present invention, furniture has a support bolt screwed from the upper end to the leg end or the bottom end so that the height can be adjusted, and the head at the lower end of the support bolt is sandwiched from above and below and contained. The lower end head of the support bolt is press-fitted into at least an insertion hole provided in one of the upper and lower plastic cases, and the upper and lower plastic cases are separably fitted vertically. And a separable support leg for furniture in which the support stud and the upper and lower plastic cases are separable by applying a disengagement operation to the upper and lower plastic cases at the fitting portion. Is done.

The lower end head of the support bolt is formed as a hexagonal bolt head, and is preferably non-rotatably fixed to the inner insertion hole formed of a circular hole with an inward projection formed inside the upper plastic case. There is provided a separable support foot for furniture having the configuration described below. Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing a half-section of the entire structure of a detachable support leg for furniture according to a first embodiment of the present invention, and FIG. FIG. 2B is a front view showing the structure as a half section, and FIG.
3A is a front view showing the structure of the upper case as a half section, and FIG. 3B is a II view of FIG. 3A.
FIG. 4 is a bottom view showing a half of the bottom seen from the direction of the arrow II, FIG. 4 is a front view showing a half cross section of the overall configuration of the second embodiment of the separable support leg for furniture according to the present invention, FIG. 5 is a plan view of the upper case of the second embodiment viewed from the bottom side, and FIG. 6 is a half cross-sectional view showing the entire configuration of the separable support leg for furniture according to the second embodiment of the present invention. FIG. 7 is an exploded perspective view showing the components of the third embodiment separated from each other.

Referring to FIGS. 1-3, the detachable support leg 10 for furniture according to the first embodiment of the present invention is formed of three structural parts, namely, a commercially available metal hex head bolt. Bolt 16 having a support shaft consisting of a threaded portion 12 having a length and a hexagonal head (head) 14, an upper case 2
0 and the lower case 30.

The upper case 18 and the lower case 22 are vertically connected to each other by being fitted and fixed at the fitting portion 18 up and down, and are separated from each other at the fitting portion 18 as described later. It is formed so that it can be disassembled into two parts, which can be manufactured by molding a plastic material (for example, a well-known ABS resin material).

In the first embodiment, the hexagonal head 14 of the support bolt 16 is fitted and fastened to the insertion hole 22 formed inside the upper case 20 by applying a light pressure input, so that the pressure input is light. Because of the small amount, it is possible to separate and separate from the insertion hole 22 by applying a reverse pressure. Here, as clearly shown in FIGS. 2A and 2B, the outer shape of the lower case 30 is circular, and an outer wall 34 is formed by forming a recess 32 therein. It has a structure in which an appropriate number (four in the illustrated example) of engagement claws 36 protrude inward around the circumference. The engaging claw 36 is provided on the upper case 2 described above.
The upper case 20 and the lower case 30 form one engaging element in the fitting portion 18, and engage with a similar engaging claw provided on the upper case 20 described later to fit and fix the upper and lower cases 20 and 30. To fulfill.

A circular raised portion 38 is formed in the center region of the recess 32 of the lower case 30, and the raised portion 38 is fixed to the upper case 20 when the upper and lower cases 20, 30 are fitted. A support seat for supporting the hexagonal head 14 of the bolt 16 from below is formed. On the other hand, as shown in FIGS. 3A and 3B, the upper case 20 has a support bolt
A surrounding wall 23 is provided which has a through hole 21 which is provided upright and surrounds the through hole 21 to form an insertion hole 22 in which the hexagonal head 14 of the support bolt 16 is fitted. The outer peripheral portion is formed as a hollow cylindrical body having an outer wall 25. The inner surrounding wall 23 has a plurality of protrusions 24 protruding inward from the inner peripheral surface thereof, and the tips of the protrusions 24 are pressed when the hexagonal head 14 is lightly pressed into the hexagonal head 14.
Are designed in advance such that the projections 24 are fitted while elastically deforming the projections 24, and are fixed non-rotatably in the insertion holes 22.

An annular groove 27 formed on the outer periphery of the lower end region of the outer wall 25 of the upper case 20 and an engaging claw 26 formed on the lower edge of the annular groove 27 engage the lower case 30 described above. To form the fitting portion 18 (see FIG. 1). Therefore, the number of the engagement claws 26 of the upper casing 26 may be provided corresponding to the positions of the engagement claws 36 of the lower case 30, but may be provided over the entire peripheral surface of the outer wall 25. Further, on the outer peripheral surface of the outer wall 25, the separable support legs 10 for the furniture are screwed to the legs (not shown) of the furniture to be supported, and the screwing operation when mounting is simplified. For this purpose, the surface may be roughened, and an appropriate number of flat surfaces may be designed and arranged in advance.

As apparent from the above description, the separable support leg 10 for furniture according to the first embodiment is provided with three parts: a support bolt 16, an upper case 20, and a lower case 30, and FIG. At the time of assembling as shown in FIG.
Since the upper and lower cases 20, 30 assembled and fitted with the hexagonal head 14 at the fitting portion 18 are firmly sandwiched and fixed,
Holds the support bolt 16 stably, and thus is easily screwed into a female screw hole formed in the lower end surface or the bottom end surface of a leg of furniture or the like,
By adjusting the amount of screwing of the support bolt 16 while being mounted, height adjustment can be easily achieved.

In addition, when the furniture is discarded, the detachable support leg 10 for the furniture attached to the lower end of the leg is removed and discarded. By inserting a plate-shaped tool, for example, a knife edge or the tip of a flat-blade screwdriver into the joint 18 and separating it by prying it, the upper and lower cases 20, 3
0 can be easily separated. After the upper and lower cases 20 and 30 are separated, the insertion holes 22 in the upper case 20 are removed.
The support bolt 16 fitted into the upper case 20 can be easily extracted from the upper case 20 by applying a slight pressing force in the direction opposite to the press-fitting direction. Therefore, it is possible to completely separate the three parts through such a simple separating operation, and therefore, for example, the support bolt 16 and the upper case 20 are recycled and worn by contact with the floor surface. It is possible to realize a recycling method such as discarding the lower case 30.

By properly selecting the resin material of the lower case 30, lubricating properties, non-lubricating properties, a function of protecting the floor surface, and the like can be appropriately held by the detachable supporting feet 10 for furniture. It is selected and used according to the purpose, place of use, etc. At this time, in order to maintain lubricity, the lower case 30 may be formed using a fluororesin-based material or a polyacetal material. In order to maintain non-lubrication, the lower case 30 may be formed of an elastomeric resin material. In order to have a protective function, a felt material may be attached to the lower surface of the lower case 30 or a soft silicon film may be attached.

FIGS. 4 and 5 show the configuration of a second embodiment of the separable support leg 10 for furniture according to the present invention. In the second embodiment, the support bolt 16 is completely the same as the support bolt of the first embodiment described above, and thus has the hexagonal head 14. The second embodiment differs from the first embodiment in the structure of the upper case 40 and the lower case 50.
The upper case 40 has a through hole 41 at the center thereof through which the screw portion 12 of the support bolt 16 passes, and an insertion hole recessed inside an inner wall portion 43 surrounding the through hole 41 and formed inside. Reference numeral 42 denotes a hexagonal head 1 of the support bolt 16 as clearly shown in FIG.
4 is formed as a hexagonal hole having a shape complementary to that of FIG. Accordingly, by fitting the hexagonal head 14 of the support bolt 16 into the hexagonal hole-shaped insertion hole 42, the support bolt 16 can be fitted and fixed non-rotatably. In this case, it is preferable that the fitting is configured so that the hexagonal head 14 is pressed into the insertion hole 42 with a small pressure and the fitting is stopped. The upper case 40 includes an outer wall 45 and the inner wall 43.
A plurality of ribs 46 are provided in the radial direction between the upper case 40 and the upper case 40 to maintain the rigidity of the upper case 40 properly.

On the other hand, the lower case 50 is formed as a component having a bottom lid shape fitted to the outer periphery of the inner wall 43 of the upper case 40, and the upper end of the outer periphery of the inner wall 43 of the upper case 40 is formed at the fitting portion. The outer wall portion 5 of the lower case 50 is
The engaging claw 54 formed at the upper end of the lower case 50 may be formed so as to be fitted and fixed. In this case, the lower case 50 is forcibly moved downward by using the removing claw 56 provided at the lower end of the lower case 50. The upper and lower cases 40 and 50 can be separated from each other by pulling down.

The lower case 50 has lubricity, non-lubricity,
As in the first embodiment, the protection function and the like can be selectively retained. From the above description, also in the detachable support leg 10 for furniture according to the second embodiment of the present invention, the support bolt 16 is used when the support leg 10 is attached to the lower end of the leg of the supported object or during use. Are the upper and lower cases 40 and 50
And secures stable holding of the support bolts during the disposal process.
After the screws 6 are dissociated and removed, the upper and lower cases 40, 5
0 is separated, and the hexagonal head 14 of the support bolt 16 is pulled out from the hexagonal insertion hole 42 of the upper case 40 by applying a slight pressing force, whereby it is possible to completely separate the hexagonal head 14 into three parts. As a result, it is possible to achieve the recycling and the discarding on a component basis as in the first embodiment.

FIGS. 6 and 7 show a third embodiment of a separable support leg for furniture according to the present invention. The separable support leg 10 for furniture according to the third embodiment also includes the screw portion 1.
The point that the support bolt 16 having the hexagonal head 14 and the hexagonal head 14 is provided is the same as in the first and second embodiments. The difference between the separable support legs 10 for furniture and the above-described embodiment lies in the structure of the upper and lower cases 60 and 70. That is,
As is clear from the exploded view shown in FIG. 7, in the third embodiment, the hexagonal head 14 of the support bolt 16 is
Has a structure in which it is fitted and fixed by light pressure in a hexagonal recess 72 formed and surrounded by an inner wall portion 71 provided inside the support case 16. , Through hole 61 formed in the center of upper case 60
Is provided to stand upright. Of course, it is possible to easily separate from the lower case 70 by applying a tensile force to the support bolt 16.

On the other hand, the upper and lower cases 60 and 70
6 (see FIG. 6), the outer wall portion 62 of the upper case 60
An engaging claw 63 is formed on the upper edge of the upper case 60, and an engaging recess 73 with which the engaging claw 63 of the upper case 60 engages is formed on the upper edge inside the outer wall 75 of the lower case 70. Is formed. Therefore, the upper and lower cases 60 and 70 have a structure in which the convex claws 63 are engaged with the engaging recesses 73 by applying a slight pressure to the upper and lower directions from the upper and lower directions, and the coupling and fixing of both are achieved. In this case, the support bolts 16 inserted and fixed in the lower case 70 in advance are clamped and fixed by the upper and lower cases 60 and 70 as clearly shown in FIG. The upper and lower cases 60 and 70 can be separated and disassembled by applying a pulling force upward and downward at the fitting portion 76. Thereafter, by removing the support bolt 16 from the lower case 70, the three Parts 16, 60,
70 would be individually separated.

As is apparent from the above description, also in the separable support leg 10 for furniture of the third embodiment, it is possible to assemble the three structural parts by a simple press-fitting and fitting operation. At the same time, at the time of disposal, etc., it is possible to separate and disassemble these three structural parts and to perform recycling processing for recycling or disposal processing.
Is the same as

[0024]

As can be understood from the above description of the first to third embodiments, according to the present invention, the support which is screwed from the upper end to the leg end or the bottom end of the furniture so as to be adjustable in height. Having a bolt, holding the head at the lower end of the support bolt from above and below,
An upper and lower plastic case is included, and the lower end head of the support bolt is fixed to an insertion hole provided in at least one of the upper and lower plastic cases by light press-fitting, and the upper and lower plastic cases are vertically separable. A separable support leg for furniture having a fitting part to be fitted and joined, wherein the support bolt and the upper and lower plastic case are made separable by giving a separating operation to the upper and lower plastic cases at the fitting part. As a result, it is possible to easily assemble the supporting feet by fitting and fixing the three structural elements to each other, and use a general tool such as a screwdriver or a spatula at the time of disposal. It is configured to be easily separated and disassembled, so it is easy to sort and recycle by material Rukoto can. Therefore, the re-use of resources has been demanded in recent social demands, and it can be effectively used as a means that can cope with this. In addition, since each single component element can be manufactured individually by molding processing during manufacturing and assembly, and commercialization can be achieved by fitting and assembling, there is an effect of reducing manufacturing costs.

[Brief description of the drawings]

FIG. 1 is a front view showing an overall configuration of a first embodiment of a separable support leg for furniture according to the present invention by a half cross section.

FIG. 2A is a front view showing the structure of the lower case in a half section, and FIG. 2B is a top view taken along line II of FIG. 2A.

3A is a front view showing the structure of the upper case as a half section, and FIG. 3B is a bottom view showing a half of the bottom seen from the II-II arrow in FIG. 3A. .

FIG. 4 is a front view showing the entire configuration of a separable support leg for furniture according to a second embodiment of the present invention by a half cross section.

FIG. 5 is a plan view of the upper case of the second embodiment viewed from the bottom side.

FIG. 6 is a front view showing the entire configuration of a separable support leg for furniture according to a second embodiment of the present invention by a half cross section.

FIG. 7 is an exploded perspective view showing components of the third embodiment separately.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Separable support leg for furniture 12 ... Screw part 14 ... Hexagonal head (head) 18 ... Mating part 20 ... Upper case 22 ... Insertion hole 24 ... Protrusion 25 ... Outer wall part 26 ... Engagement claw 30 ... Lower case 34 ... Inner wall portion 36 ... Engaging claw 40 ... Upper case 50 ... Lower case 60 ... Upper case 70 ... Lower case

Claims (2)

[Claims] 1. An upper and lower plastic case which has a supporting bolt screwed from the upper end side to a leg end or a bottom end of furniture so as to be adjustable in height, and which holds and encloses a head at a lower end of the supporting bolt from above and below. The lower end head of the support bolt is fixed to an insertion hole provided at least in one of the upper and lower plastic cases by press-fitting, and the upper and lower plastic cases are separably vertically fitted and joined. A separable support leg for furniture, comprising a mating portion, wherein the support bolt and the upper and lower plastic case are separable by applying a separating operation to the upper and lower plastic cases at the fitting portion. 2. A lower end head of the support bolt is formed as a hexagonal bolt head, and is fixed non-rotatably to the insertion hole formed of a circular hole with an inward projection formed inside the upper plastic case. The separable support foot for furniture according to claim 1, characterized in that: