JPH09140488A - Furniture legs - Google Patents

Abstract

(57) [Abstract] [Problem] To perform the installation work easily and prevent the floor surface from being damaged. A through hole (5) is formed at the center of a cylindrical body having a predetermined height.
Holding frame body 1 having a through hole, a urethane resin support member 7 provided with a metal screw shaft 9 to be inserted into the through hole 5 of the holding frame body 1, and an upper surface of the through hole 5 of the holding frame body 1. The fitting member 10 is screwed onto the screw shaft 9 protruding from the fitting member 10.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to legs of furniture such as chairs, reception sets, beds, bookcases, and tables.

[0002]

2. Description of the Related Art Conventionally, the legs of a reception set are, for example, those in which a metal screw shaft is erected on the upper surface of an ABS resin contact plate which is grounded on the floor surface, or on the floor surface. There is one in which a pedestal cylindrical portion is erected on the upper surface of the contact plate portion to be grounded and integrally molded with ABS resin. Then, in the former case, through holes that vertically penetrate are formed at the four corners of the flat wooden frame on the back surface of the chair, and similarly, screw holes are fitted to the through holes on the upper surfaces of the four corners to fix the seat plate. Then, each leg was attached by screwing a screw shaft into the screw hole from the back surface of the wooden frame through the through hole. In the latter case, the mounting holes for the pedestal cylinders to fit tightly at the four corners of the backside of the flat wooden frame under the chair should be left open, and the pedestal cylinders should be driven into the mounting holes from the backside of the wooden frame. I was wearing each leg. Furthermore, since these legs are made of ABS resin and are hard, there is a risk that the wooden floor will be scratched. Therefore, the felt is adhered to the back surface of the contact plate portion.

[0003]

However, since the legs on which the screw shafts are erected are attached to the four corners of the wooden frame by screws, there is a problem that the work is troublesome and time-consuming, and the workability is poor. It was. On the other hand, in the case of a leg in which the pedestal cylinder is erected on the abutment plate and integrally molded with ABS resin, the pedestal cylinder is attached only by driving it into the mounting hole, so workability is improved. Although excellent in, due to the nature of the material,
There has been a problem that the base of the pedestal cylinder portion often breaks during long-term use, and the replacement work was difficult. Further, there is also a problem that the felt adhered to the back surface of the abutting plate portion without scratching the wooden floor surface has a weak adhesive force after being used for a long time and is peeled off so that the effect cannot be sufficiently achieved.

Therefore, the present invention has been made to solve these problems, and the furniture can be easily installed and is strong in strength, and the floor surface is not damaged even if it is used for many years. It is intended to provide the legs of the above.

[0005]

In order to achieve the above object, the legs of furniture or the like according to the present invention are supported by a metal screw shaft standing on the upper surface of a substantially flat contact plate portion to be grounded on the floor surface. A member, a holding frame body having a through hole vertically penetrating therethrough for inserting the screw shaft, and a tubular fitting into which a screw groove is provided on an inner peripheral surface and into which a screw shaft protruding upward from the through hole is screwed It is composed of a composite member. On the other hand, mounting holes into which the fitting members can be tightly fitted are provided at four corners on the back surface of the lower wooden frame of furniture or the like. Then, the fitting members are driven into the respective mounting holes to mount the legs. In addition, it is desirable that the contact plate portion is formed of a material such as urethane resin or hard rubber that prevents slipping.

As another example, the contact plate portion is molded from a material that prevents slipping, such as urethane resin or hard rubber, and the holding frame body is divided into upper half body and lower half body, and the lower half body is formed. The lower surface of the body is provided with a concave portion where the abutting plate portion can project and retract, and the upper surface of the lower half body and the lower surface of the upper half body are provided with a plurality of convex portions and concave portions which can be engaged with each other. A compression spring, which urges the upper half body and the lower half body to always separate in the vertical direction, is interposed between the body and the lower half body, and is fitted to a screw shaft protruding upward from the through hole of the upper half body. The fitting member is screwed, and the fitting member is driven into each mounting hole on the back surface of furniture or the like to attach the leg.

In this case, when the plurality of convex portions and the concave portions are engaged at the same position, a load such as furniture is applied to the support member, and the contact plate portion is pressed and grounded on the floor surface. Therefore, in this state, the anti-slip effect of the abutting plate portion is exerted, and furniture or the like is less likely to be displaced during use, and even if it is displaced, the floor surface is not scratched. Further, when the lower half body is rotated and the positions of the plurality of convex portions and the concave portions are made different, the upper half body and the lower half body are separated by the height dimension of the convex portion even when a load such as furniture is applied,
Further, the load is applied to the upper half body and further to the lower half body, and at the same time, the contact plate portion is recessed into the concave portion. Then, the lower half body, that is, the lower surface of the holding frame body is pressed and grounded to the floor surface. Therefore, for example, when pulling out furniture or the like from a warehouse or the like, the legs are slippery and easy to pull out, which is convenient. In this way,
The legs can be used either slippery or hard to slip on the floor.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of legs of furniture or the like according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a leg, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is a sectional view of the same. In FIG. 1, 1 is a holding frame made of a cylindrical body made of ABS resin having a required height. Yes, the bottom wall 3 has a fried bottom shape on the inner surface so that a circular concave portion 2 is formed on the bottom surface.
Is provided, the shaft cylinder 4 is erected at the center of the bottom wall 3, and the through hole 5 is formed therethrough. The shaft cylinder 4 and the inner surface of the holding frame 1 are connected by a plurality of radial ribs 6.

Reference numeral 7 is a support member, and the upper half portion of the contact plate portion 8 is fitted into the concave recess portion 2 on the lower surface of the holding frame body 1, and the lower end surface is grounded to the floor. The contact plate portion 8 is formed of urethane resin into a disc shape, and is integrally formed by inserting a base portion of a metallic screw shaft 9 which is erected at the center of the upper surface of the contact plate portion 8. Further, the screw shaft 9 is formed longer than the height dimension of the holding frame body 1.

Reference numeral 10 denotes a fitting member which is screwed into a screw shaft 9 inserted through the through hole 5 to integrally connect the holding frame body 1 and the support member 7, and the fitting member 10 is a seat. A shaft cylinder 12 is formed in a penetrating manner at the center of the plate 11, a screw groove 13 is provided inside the shaft cylinder 12, and an upper end outer circumference of the shaft cylinder 12 is a tapered surface 12a, and a notch 14 opened at the upper end is formed. , 1
4 is provided to facilitate fitting into a mounting hole h such as furniture described later.

The supporting member 7 is inserted into the through hole 5 of the holding frame body 1.
The screw shaft 9 is inserted, and the fitting member 10 is screwed and fastened to the upper end of the screw shaft 9 protruding from the upper surface of the holding frame body 1, whereby the leg A is integrated as shown in FIGS. 1 and 3. Be assembled into.

Next, an example of use of the legs A integrally assembled in this way will be described with reference to a sitting chair C shown in FIG. As shown in FIG. 5, mounting holes h are formed in the lower surface of the legs L provided at the four corners of the chair C. These mounting holes h
The leg A can be easily attached by driving the shaft cylinder 12 into. Since the supporting member 7 made of urethane resin abuts on the surface F of the floor of each leg A, the legs A are not slipped and do not move,
In addition, it does not damage the floor F surface.

6 to 9 relate to another embodiment. For example, when being transported from a warehouse or at work, it is slippery while being left on the floor, and can be placed on the floor of a living room or the like. It is formed so that it can be used properly so that it does not slip easily when it is placed stationary. The reference numerals are the same for the legs A and the same parts. The leg B has a structure similar to that of the leg A as shown in the exploded view of FIG.
Has been split. That is, the holding frame body 1 is divided into an upper half body 1a and a lower half body 1b. First, the lower half 1b is formed in a cylindrical shape having a large-diameter through hole 5a through which the screw shaft 9 of the support member 7 is inserted, and four recesses 15 are provided at equal intervals on the outer peripheral edge surface of the upper end and the upper end portion is formed. An annular receiving portion 17 for receiving the lower end of the compression spring 16 is provided around the inside of the.

On the other hand, the upper half 1a is provided with a top plate 18 at an inner middle height position, and a through hole 5b is opened at the center of the top plate 18. The lower surface of the top plate 18 receives the upper end of the compression spring 16. A convex portion 19 fitted to the concave portion 15 on the upper end surface of the lower half body 1b on the outer peripheral surface of the lower half body 1a.
Are provided at four locations at equal intervals. The outer peripheral surfaces of the upper half body 1a and the lower half body 1b are formed on the knurled surface 20 so as to prevent slippage when rotating.

Reference numeral 21 is fitted to the screw shaft 9 and fitted to the fitting member 10.
Is a washer to be interposed on the lower surface of the seat plate 11. Reference numeral 22 denotes a receiving member fitted to the supporting member 7, and a recess 23 into which the upper half of the contact plate 8 is fitted is formed on the lower surface of the receiving member 22. A step portion 24 is formed around the outer peripheral wall of the receiving member 22 so as to receive the annular receiving portion 17 provided inside the lower half body 1b. The step portion 24 is slid above the periphery of the through hole 5a of the lower half body 1b. A moving guide cylinder 25 is provided so as to project. Further, an insertion hole 26 through which the screw shaft 9 is inserted is provided at the center position of the receiving member 22.
Is pierced.

Then, the screw shaft 9 provided upright on the contact plate portion 8 is inserted into the insertion hole 26 of the receiving member 22 to integrate the receiving member 22 and the supporting member 10, and the receiving member 22 is attached to the lower half 1b. The upper half body 1a on the lower half body 1b with the annular receiving portion 17 receiving the lower end of the compression spring 16.
The convex portions 19 provided on the lower peripheral edge surface of the upper half body 1a and the concave portions 15 provided on the upper peripheral edge surface of the lower half body 1b are located at different positions, and further protrude from the upper surface of the top plate 18 of the upper half body 1a. The fitting member 10 is screwed onto the upper end of the screw shaft 9 via the washer 21. At this time, it is screwed until the lower end of the convex portion 19 comes into contact with the upper surface of the lower half body 1b. As a result, as shown in FIG. 8, the contact plate portion 8 does not enter the recessed portion 2 and does not protrude downward from the lower surface of the lower half body 16. Then, the fitting member 10 is driven into the mounting holes h on the lower surface of the leg portion L provided at the four corners of the chair C to attach the leg B.

Therefore, for example, when shipping from a warehouse or the like, the heights of the upper half 1a and the lower half 1b are separated from each other as shown in FIG. Leave it in a reversed state. As a result, the chair C easily slides on the floor F surface, and the chair C can be carried by sliding on the floor F surface, and the work can be performed easily.

On the other hand, when the chair C is installed on the floor F surface of a living room or the like, the lower half 1b is rotated so that the concave portions 15 and the convex portions 19 are aligned with each other. Then, as shown in FIG. 10, the upper half body 1a approaches the lower half body 1b, and the load of the chair C is added to the supporting member 7 so that the contact plate portion 8 made of urethane resin is pressed against the floor surface F to be grounded. To be done. Therefore,
The chair C is difficult to slip, and the surface of the floor F is not scratched.

Although the chair has been described in the above embodiment, it can be used for other furniture such as a bed, a bookshelf, a table, and urethane resin is used for the abutting member. Also, a material that does not scratch the floor surface, such as hard rubber, can be used.

[0020]

As described above, in the leg of furniture or the like according to the present invention, a metallic fitting shaft is screwed with a tubular fitting member,
Since it is designed to be mounted in the mounting hole on the back surface of furniture or the like in a hammering manner, the mounting work can be easily performed, and it can be stably used for a long period of time without being strongly broken in terms of strength. In addition, since the contact plate portion that comes into contact with the floor surface is made of urethane resin or other material having a non-slip effect, the chair is unlikely to slip sideways, and the floor surface is not easily scratched. Even if the contact plate is worn, only the support member can be replaced, so the maintenance cost is relatively low.

Further, in the leg in which the holding frame body is divided into the upper half portion and the lower half portion, the surface which is grounded to the floor and receives a load such as furniture is the contact plate portion or the holding frame body. Since it can be converted to any one, it has the effect that it can be used properly according to the location such as a warehouse or a limbing room, which is convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view of a leg A according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a longitudinal sectional view of the same.

FIG. 4 is a perspective view of the same use state.

FIG. 5 is a sectional view of the main part.

FIG. 6 is a perspective view of a leg B according to another embodiment of the present invention.

FIG. 7 is an exploded perspective view of the same.

FIG. 8 is a sectional view of the same main part.

FIG. 9 is a sectional view showing the same action.

FIG. 10 is a sectional view showing the same action.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holding frame 5 Through hole 7 Support member 8 Contact plate part 9 Screw shaft 10 Fitting member 13 Screw groove

Claims (3)

[Claims] 1. A support member in which a metallic screw shaft is erected on an upper surface of a substantially flat abutment plate portion grounded on a floor surface, and a through hole which is vertically penetrated and through which the screw shaft is inserted. A leg of furniture or the like, comprising: a holding frame body; and a tubular fitting member into which a screw groove is provided on an inner peripheral surface and into which a screw shaft protruding upward from the through hole is screwed. 2. The contact plate portion of the support member is made of a material such as urethane resin or hard rubber that prevents slippage.
Legs such as the listed furniture. 3. A support member in which a metal screw shaft is erected on the upper surface of an abutting plate portion made of a substantially flat and grounded material such as urethane resin or hard rubber that is grounded on the floor surface, and The lower half of the lower half is provided with a recessed portion into which the abutment plate can project and retract, and the lower half of the lower half is provided with a through hole that penetrates through the screw shaft. A holding frame body provided with a plurality of convex portions and concave portions capable of engaging with each other on the upper surface of the body and the lower surface of the upper half body, and the upper half body interposed between the upper half body and the lower half body. And a lower half body are always biased so as to separate them in the vertical direction, and a cylindrical shape in which a screw groove is provided on the inner peripheral surface and a screw shaft protruding upward from the through hole of the upper half body is screwed into. It consists of a fitting member,
When the plurality of convex portions and the concave portions are engaged at the same position and the upper half body and the lower half body are joined against each other against the bias of the compression spring, the contact plate portion projects downward from the concave portion, and When the plurality of convex portions and the concave portions do not engage at different positions and the upper half body and the lower half body are separated from each other by the height dimension of the convex portion, the abutting plate portion is made to sink into the concave portion. Characteristic furniture legs.