JP7008061B2 - Furniture legs - Google Patents

Description

The present invention relates to furniture legs.

For the legs of furniture, as in the embodiment of Patent Document 1, casters of a universal wheel type having wheels grounded on the plane on which the furniture is installed are used for the legs, and the rod-shaped portion to which the casters are connected has an edge. The idea of arranging a cover that becomes a bumper is known.

Further, in the case of furniture legs, as in the embodiment of Patent Document 2, a ball caster is embedded in the tip of the leg of the chair, and when a person sits on the chair, the ball escapes into the tip of the leg. Are known.

Japanese Unexamined Patent Publication No. 2017-118926 Jikkenhei 02-015503 Gazette

For the legs of furniture, there is a demand for a cover in which a device acting on a flat surface to be grounded collides with other furniture, a wall, a person's foot, etc. and does not easily damage each other. However, as in the embodiment of Patent Document 1, the device is required. If the casters of the universal car type are almost exposed, the casters may run or swing, causing damage to human feet, etc., and dust tends to collect on the covers and casters with complicated shapes, making cleaning difficult. There is also a loss of design.

Also, if the table top or chair seat is the main body, the legs that extend so as to protrude from the main body should be thin as long as they have the rigidity and strength to withstand the force of the cheeks and hips applied to the main body. It is often preferable because it has a good view and the space for the user to put his foot in is large. However, since the space for embedding devices such as casters is limited at the tip of the optimized thin legs, for example, when embedding ultra-small casters, the surface of the part that touches the floor or other flat surface when weight is applied. The pressure will rise abnormally, damaging the floor and causing the casters to break quickly. Further, as in the embodiment of Patent Document 2, a small ball caster that escapes when weight is applied due to a measure of bitterness cannot run while sitting, and even when running after standing up, if the flat surface is soft such as a carpet, the surface of the small ball caster. The grounding point with high pressure sinks, making it difficult to drive.

The present invention will be described below with reference to an embodiment of the present invention, but this is to make it easier to understand the contents of the present invention, and does not reduce the scope of the attached claims.

The legs of the furniture according to the invention 1 are, for example , the assembly of FIGS. 1 to 5.
One end 2 connected to the main body 1 of the furniture,
An approximately rod-shaped intermediate portion 4 protruding from the main body portion 1 and
The other end 5 having a cover 18 thicker than the average of the middle portion 4 and grounding on the plane on which the furniture is installed,
A universal wheel that is arranged so as to be covered by a cover 18 and has wheels that roll on the plane and can swing around an axis 10 that is approximately perpendicular to the plane .
Equipped with
The rod-shaped portion 16 of the intermediate portion 4 integrally connected to the cover 18 is characterized in that it is tilted with respect to the axis 10.
It is the leg 3 of the furniture.

The legs of the furniture according to the invention 2 are, for example, as shown in FIG.
One end 2 connected to the main body 1 of the furniture,
An approximately rod-shaped intermediate portion 4 protruding from the main body portion 1 and
The other end 5 which is integrally connected to the intermediate portion 4 and has a cover 18 having a diameter of about twice or more the average of the intermediate portion 4 and is grounded to the plane on which the furniture is installed.
An elastic body 22 that is fitted so as to be covered with a cover 18 and grounds to the plane.
Equipped with
It is the leg 3 of the furniture.

The legs of the furniture according to the invention 3 are, for example, the assembly of FIGS. 1 to 5, or as shown in FIG.
One end 2 connected to the main body 1 of the furniture,
An approximately rod-shaped intermediate portion 4 protruding from the main body portion 1 and
The other end 5 having a cover 18 thicker than the average of the middle portion 4 and grounding on the plane on which the furniture is installed,
A blower arranged so as to be covered with a cover 18 and acting on the plane,
Equipped with
It is the leg 3 of the furniture.

As described above, in the present invention, the cover 18 having a function of preventing the device 13 acting on the grounded plane from colliding with other furniture, walls, human feet, etc. and damaging each other so as to cover the device 13. Since it is arranged, it becomes easy to design such that a device 13 having an optimum size for acting on a flat surface is arranged on the other end 5 of the leg 3 of the smooth outer shell where dust does not easily collect.

Right side view (partial cross-sectional view) of the chair provided with the legs 3 of the furniture of the first embodiment. Front view of the chair provided with the legs 3 of the furniture of the first embodiment. Rear view of the chair provided with the legs 3 of the furniture of the first embodiment. Top view of the chair with the legs 3 of the furniture of the first embodiment Bottom view of the chair provided with the legs 3 of the furniture of the first embodiment Right side view (partial cross-sectional view) of the chair provided with the legs 3 of the furniture of the second embodiment.

The first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

One end 2 of the leg 3 is inserted and connected to and fixed to the bottom surface 15 of the seat 7, which is the main body 1 of the chair. Further, the legs 3 have a wooden rod shape having approximately the same diameter from one end 2 to the middle 4. Further, the other end portion 5 of the leg 3 has an approximately hemispherical portion having a bottom surface 19 that is approximately parallel to the plane on which the chair touches the ground, and this diameter is approximately twice or more and a little less than three times the average of the intermediate portion 4. This approximately hemispherical outer shell is smoothly and integrally connected to the outer shell of the rod-shaped portion 16 of the intermediate portion 4, and is a truncated cone centered on the axis 10 perpendicular to the bottom surface 19 and passing through the center of the hemisphere. An internal space 11 that looks like a combination of a cylinder and a cylinder is provided so as to hollow out a bottom surface 19, and a free wheel that can swing around an axis 10 covers about half of a wheel that is a rotating body 14. It is an internal space 11 that is exquisitely separated by leaving a gap when the wheel swings around the axis 10, and the outer shell of the approximately hemispherical portion of the other end 5 is covered. By covering the device 13 as 18, it is possible to prevent the device 13 from being damaged by human feet, other furniture, and the like, and to prevent dust from adhering to the device 13, making it easier to clean the legs 3.
Further, the legs 6 and 20 similar to the leg 3 are similarly inserted into the bottom surface 15 at a pitch of 120 degrees, and the chair has a tripod structure in which the grounding portions 12, 17 and 21 are grounded to a flat surface, but at a pitch of 90 degrees. You may increase the number of legs as needed, such as a four-legged configuration or a five-legged configuration with a 72-degree pitch, for stability and strength.
Also, for example, the legs 6 and 20 may be ordinary rod-shaped legs without a device, and it would be easier to lift the furniture a little and run it using the device 13, for example, a universal vehicle for the devices of the legs 6 and 20. A fixed car type caster may be used for the type caster and the leg 3, so that the seated person can easily swing and move around the ground contact portion 12.
Further, a thick rod-shaped portion vertically extending from the bottom surface 15 may be provided as the main body portion 1, and the legs 3, 6 and 20 may be configured to project radially from the vicinity of the tip portion thereof. At this time, the bottom surface 19, the internal space 11, and the device 13 may be redesigned so that the axis 10 is approximately perpendicular to the plane on which the chair is grounded. Here, if the chair is designed so that the inclination of the axis 10 is smaller than about 45 degrees with respect to the central axis of the rod-shaped portion 16 of the intermediate portion 4, it is easy to secure the depth of the internal space 11 and the mounting height is relatively high. It will be suitable for the required casters, especially the universal car type.
Further, the cover 18 may be formed as a separate body instead of being integrally molded with the rod-shaped portion 16 of the intermediate portion 4, but in this case, the mounting fitting structure portion of the cover 18 may be relatively weak .

Since the second embodiment of the present invention has many parts in common with the first embodiment, the differences will be mainly described with reference to FIG.

A tennis ball, which is an elastic body 22, is fitted as a device 13 in an approximately hemispherical internal space 11 having the same center point as the substantially hemispherical outer shell of the other end 5 of the leg 3, and covers the elastic body 22. The grounding portion 12 of the portion exposed from 18 is grounded on a flat surface. The moderate elasticity of the elastic body 22 alleviates the impact at the moment when a person's buttocks rest on the seat surface 9 and is comfortable. Further, the elastic body 22 is elastically deformed according to a flat surface such as a floor, so that the ground contact area of the ground contact portion 12 is increased and the surface pressure is lowered, so that the chair becomes gentle on the floor. In addition, the fiber material on the surface of the tennis ball slides moderately on the floor, allowing the chair to slide gently on the floor. Further, if the elastic body 22 deteriorates, it can be pulled out from the internal space 11 by utilizing the elastic deformation and can be replaced with a new one relatively easily. If the elastic body 22 is covered with the cover 18 at the other end 5 in this way, the surface pressure is lowered, the durability is improved, and the elasticity is improved as compared with the conventional method in which a rubber cap is put on a thin leg tip, for example. You will be able to make full use of your sex.
Further, the legs 6 and 20 are the same as the legs 3, but for example, the device at the other end of the legs 6 and 20 may be a caster so that the seated person can easily swing and move around the ground contact portion 12 .

Other embodiments of the present invention will be described with reference to FIGS. 1 to 5.

The caster provided with the rotating body 14 which is the device 13 of the other end 5 is removed, and the outer shell of the rod-shaped portion 16 of the leg 3 is hollow roll molded with a ventilation structure like punching metal, or 3D with a ventilation structure like loofah fiber. It is molded by a printer, a ventilation path is connected to the internal space 11, and a fan device is built in the internal space 11 as a blower. The airflow created by the blower acts on the plane on which the chair touches the ground, and the air is pushed down by the fan device in the internal space 11 and the air pressure rises, so that the bottom surface 19 slightly rises from the plane. This reduces the frictional force between the flat surface and the bottom surface 19, allowing the chair to run with a light force. The thick and large cover 18 at the other end 5 containing a relatively large object such as a fan device prevents the fan device from being damaged by human feet or other furniture.
Further, when the bottom surface 19 of the edge of the cover 18 touches a flat surface such as a floor, the force is received, so that the stability of the wide bottom surface 19 of the other end 5 is exhibited.

In addition to chairs, the legs 3 of the above embodiment can be used for various furniture such as tables, cabinets, TV racks and whiteboard racks, but the present invention is based on the proximity to human feet and the frequency of movement. It can be said that the chair is the most effective.

1. Main body 2. One end 3,6,20. Leg 4. Middle part 5. Other end 7. Seat 8. Cushion 9. Seat surface 10. Axis line 11. Internal space 12,17,21. Grounding part 13 Device 14. Rotating body 15, 19. Bottom surface 16. Rod-shaped part 18. Cover 22. Elastic body

Claims (3)

One end connected to the body of the furniture,
An approximately rod-shaped intermediate portion protruding from the main body portion,
The other end, which has a cover thicker than the average of the middle part and is in contact with the plane on which the furniture is installed,
A universal wheel that is arranged so as to be covered by the cover, has wheels that roll on the plane, and can swing around an axis that is approximately perpendicular to the plane .
Equipped with
The rod-shaped portion of the intermediate portion integrally connected to the cover is characterized in that it is inclined with respect to the axis line.
Furniture legs. One end connected to the body of the furniture,
An approximately rod-shaped intermediate portion protruding from the main body portion,
The other end, which is integrally connected to the intermediate portion and has a cover having a diameter of about twice or more the average of the intermediate portion and is grounded to the plane on which the furniture is installed.
An elastic body that is fitted so as to be covered with the cover and grounds to the plane.
Equipped with
Furniture legs. One end connected to the body of the furniture,
An approximately rod-shaped intermediate portion protruding from the main body portion,
The other end, which has a cover thicker than the average of the middle part and is in contact with the plane on which the furniture is installed,
A blower arranged so as to be covered with the cover and acting on the plane,
Equipped with
Furniture legs.

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