JPH0832899A - Rotary frame - Google Patents

Abstract

PURPOSE:To smooth the rotation of the rotary frame by making either of upper and lower members with a metallic material and making the other with a synthetic resin material so as to reduce friction at the rotation through self- lubrication while securing stiffness. CONSTITUTION:The rotary frame 2 is made up of upper lower torus members 8, 10, a torus plate member 12 interposed between the upper lower torus members 8, 10, and balls 14 arranged to the plate member 12 for plural numbers, e.g. 8 sets at an equal interval of a circumference to allow the upper member 8 to be rotated freely. Then either of the upper lower members 8, 10 is made of a metallic material and the other is made of a synthetic resin material to provide stiffness and flexibility to the rotary frame 2. When a heavy weight is placed on the rotary frame 2 and a force to rotate the heavy material to direct the heavy weight in a prescribed direction, the upper member 8 is rotated by the rolling contact of the balls and then the heavy weight is directed in a prescribed direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary frame body, and in particular, one of the upper and lower members is made of a metal material and the other is made of a synthetic resin material so that the rotary frame body is rigid and flexible. The present invention relates to a rotating frame body having added properties.

[0002]

2. Description of the Related Art Generally, when a heavy object, for example, a television receiver is placed at an arbitrary place, it is difficult to rotate the television receiver to direct the screen of the television receiver in a predetermined direction. Is. Moreover, the size of television receivers is currently increasing.

There is also a dedicated mounting table for a television receiver having a rotation function. However, the dedicated mounting table has a problem in relation to the surrounding interior and a disposition space, is expensive, and is desired to be improved.

[0004]

By the way, in the conventional rotary frame, an annular upper portion is used to mount a large heavy object such as a computer display, a television receiver, a speaker, a microwave oven on the upper surface of the upper member. The member, the lower member, and each component are made of a metal material.

However, when a heavy object is placed on the upper surface of the upper member, the upper member and the lower member cannot absorb the load, and the upper member and / or the lower member made of a metal material are deformed by the load. The rotating operation of the rotating frame is not smoothly performed, maintenance is required, and noise is generated during the rotating operation, which is disadvantageous in practical use.

Further, if the upper and lower members are rigidly formed in order to prevent the upper and lower members from being deformed by a load, the weight of the rotary frame becomes large, which is not convenient.

[0007]

In order to eliminate the above-mentioned inconvenience, the present invention provides an annular upper and lower member, an annular plate member interposed between these upper and lower members, and this plate member. A rotary frame in which the upper member is rotatable is formed by a plurality of spheres arranged at equal intervals around the circumference, and one of the upper and lower members is made of a metal material and the other is made of a synthetic resin. It is characterized in that it is made of a material to add rigidity and flexibility to the rotary frame.

[0008]

According to the invention as described above, when a heavy object is placed on the rotary frame, a force is applied to rotate the heavy object in order to orient the heavy object in a predetermined direction.
The rolling of the sphere causes the upper member to rotate, allowing large heavy objects to be oriented in a predetermined direction, while maintaining rigidity, self-lubricating properties reduce friction during rotational operation, and rotation of the rotating frame It works smoothly.

[0009]

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 13 show an embodiment of the present invention. In FIGS. 1 and 2, reference numeral 2 is a rotary frame.

As shown in FIG. 1, the rotating frame 2 is placed on the upper surface of a mounting table 4, and a heavy object such as a television receiver 6 is placed on the rotating frame 2, and the screen of the television receiver 6 is placed. It is used to direct the 6a in a predetermined direction.

As shown in FIG. 2, the rotary frame 2 includes annular upper and lower members 8 and 10, an annular plate member 12 interposed between the upper and lower members 8 and 10, and the plate member 12. The upper member is formed by a plurality of, for example, eight spherical bodies 14 arranged at equal intervals around the circumference so that the upper member can rotate.

Then, one of the upper and lower members 8 and 10 is made of a metal material, and the other is made of a synthetic resin material to add rigidity and flexibility to the rotary frame 2. To do.

More specifically, for example, the upper member 8 is made of a metal material and the other lower member 10 is made of a synthetic resin material such as plastic.

The upper member 8 comprises an inner crimp portion 16 formed by crimping the inner portion of the annular member, and an outer holding portion 18 in which the outer portion is bent toward the lower member 10.

Further, the lower member 10 has an inner edge portion 20 located inside the inner crimp portion 16 when the rotary frame 2 is molded.
And the outer edge portion 22 held by the outer holding portion 18.
And a spherical projecting portion 24 formed to bring the outer holding portion 18 into contact with the outer peripheral surface of the outer edge portion 22, and a spherical body mounting portion 26 on which the spherical body 14 is mounted. It is integrally formed of a resin material.

The plate member 12 is made of a synthetic resin material and has eight spheres 1 at equal intervals around the circumference.
4 has a holding hole portion 28 for holding the 4
Is made of a steel material.

The rotating frame 2 is provided with stopper means 30 for setting the rotation range of the upper member 8 to a predetermined angle α. The stopper means 30 includes a first stopper portion 32 formed on the upper member 8 and a second stopper portion 34 formed on the lower member 10.

The first stopper 32 is shown in FIG.
Further, as shown in FIGS. 9 and 10, respectively, two cuts are made in the upper member 8 and the cut portions of the upper member 8 are cut into the lower member 1.
Two first stopper parts 32-1 and 32 are bent to the 0 side.
-2, and these two first stopper portions 32-1 and
The distance between 32-2 determines the rotation range of the upper member 8.

The lower member 10 is made of a synthetic resin material, and as shown in FIGS. 8 and 11, the lower member 10 has an inner surface projecting toward the upper member 8 and integrally formed with the lower member 10. The cylindrical second stopper portion 34 is formed, and the second stopper portion 34 is formed when the rotary frame 2 is molded.
Between the two first stopper portions 32-1 and 32-2, and by contacting the second stopper portion 34 with either one of the two first stopper portions 32-1 and 32-2. The rotation of the upper member 8 is restricted.

Reference numeral 36 is a non-slip member mounted on the upper surface of the upper member 8 at equal intervals around the circumference, for example, four, and 38 is a circle for fixing the lower member 10 to the mounting table 4 side. A plurality of fixing holes, for example, four fixing holes are formed at regular intervals. The fixing hole 38 may not be fixed to the mounting table 4 side, and a non-slip member (not shown) may be attached to the fixing hole 38 for use. Further, reference numeral 40 is a hole formed on the upper surface of the mounting table 4, and the power supply of the television receiver 6 and other cords 6c are routed using the hole 40.

Next, the operation will be described.

When the rotary frame 2 is molded, the plate member 12 holding the spherical body 14 by the holding hole 28 is positioned on the spherical body mounting portion 26 of the lower member 10, and the upper member 8 is arranged from above. To coat.

When the television receiver 6 is placed on the rotary frame body 2 after the rotary frame body 2 is molded, the state shown in FIG. 12 changes to the state shown in FIG. That is, as shown in FIG. 13, the height of the outer peripheral side of the upper member 8 becomes smaller due to the load of the television receiver 6, and the upper member 8 has a predetermined angle β,
For example, it is inclined about 1.5 degrees.

Then, as shown in FIG. 13, the inner caulking portion 1 of the upper member 8 is located below the inner edge portion 20 of the lower member 10.
6, the outer holding portion 18 comes into contact with the protruding portion 24 of the outer edge portion 22.

At this time, the screen 6a of the television receiver 6
When a force is applied to rotate the television receiver 6 to orient the object in a predetermined direction, the rolling of the sphere 14 causes the upper member 8 to rotate, and the screen 6 of the television receiver 6 is rotated.
It is possible to direct a in a predetermined direction.

Further, this rotating operation can be performed until either one of the two first stopper portions 32-1 and 32-2 formed on the upper member 8 comes into contact with the second stopper portion 34. Is.

As a result, the rotating frame 2 is formed by the upper member 8 made of metal and the lower member 10 made of synthetic resin, and it is possible to withstand a minimum load-bearing function, for example, a static load of about 80 〓. While ensuring the rigidity of the rotary frame 2, part of the load of the television receiver 6 can be absorbed by the flexible lower member 10, and deformation of the metallic upper member 8 due to the load can be prevented. When the load is removed, the original state is restored by the restoring force of the lower member 10, which is practically advantageous.

Further, by forming the rotary frame body 2 by the upper member 8 made of metal and the lower member 10 made of synthetic resin, the lower member 10 made of synthetic resin has self-lubricating property, and the rotary operation is performed. The friction at the time can be reduced, the rotating operation of the rotating frame 2 can be smoothly performed, maintenance is unnecessary, there is no fear of causing noise during the rotating operation, and the weight can be reduced as compared with the conventional one. Is.

Further, since the lower member 10 is made of synthetic resin, the lower member 10 can be easily molded, and the manufacturing cost can be reduced as compared with the conventional metal lower member, which is economically advantageous. is there.

Furthermore, the rotation range of the rotary frame 2 is
Since the stopper means 30 including the first stopper portion 32 formed on the upper member 8 and the second stopper portion 34 formed on the lower member 10 can restrict the rotation angle to the predetermined angle α, the rotation operation more than necessary is prevented. Therefore, the wear of each part can be minimized, the service life of each part can be lengthened, and it is practically advantageous.

Further, when the rotary frame 2 is rotated, the sphere 14 held by the plate member 12 functions, so that the smooth rotation of the upper member 8 can be ensured and the usability can be improved. .

Further, since the rotary frame body 2 is formed in an annular shape, the inner space of the rotary frame body 2 can be used for the power supply of the television receiver 6 and other cords 6c to be rotated. There is no fear that the cord will be complicated when the frame 2 is rotated, which is practically advantageous.

The present invention is not limited to the above-mentioned embodiment, but various application modifications are possible.

For example, in the embodiment of the present invention, two cuts are formed in the upper member, and the cut portions of the upper member are bent toward the lower member to form two first stopper portions. The distance between the first stopper portions is set as the rotation range of the upper member, but if at least one of the two first stopper portions is movable, the rotation range of the upper member is variable. It is possible to improve usability.

In addition, in the embodiment of the present invention, the upper member of the rotary frame is made of a metallic material, and
Although the lower member is made of a synthetic resin material, the upper member is made of a synthetic resin material, and even if the lower member is made of a metal material, rigidity and flexibility are added to the rotary frame. It is possible to

[0037]

As described above in detail, according to the present invention, an annular upper and lower member, an annular plate member interposed between these upper and lower members, and a plurality of plate members at equal circumferential intervals. A rotating frame whose upper member is rotatable is formed by the spheres arranged, and one of the upper and lower members is made of a metal material and the other is made of a synthetic resin material to make the rotating frame rigid. Since it is configured to add flexibility and
While securing the rigidity of the rotating frame, it can absorb part of the load of heavy objects with flexibility, prevent deformation due to the load, and return to the original state by restoring force when the load is removed. It is restored and practically advantageous. Further, since the member made of the synthetic resin material has self-lubricating property, the friction during the rotating operation can be reduced, the rotating operation of the rotating frame can be smoothly performed, and the maintenance is unnecessary. At the same time, there is no fear of causing noise during the rotating operation, and the weight can be reduced as compared with the conventional one. Further, since the member made of the synthetic resin material can be easily molded, the manufacturing cost can be reduced as compared with the conventional one, which is economically advantageous. Furthermore, if the rotation range of the rotary frame body is restricted by the stopper means, unnecessary rotation operation is prevented, and the wear of each part can be minimized, and the service life of each part is reduced. Can be lengthened, which is practically advantageous.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a rotating frame body in use according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an assembled state of a rotary frame body.

FIG. 3 is a plan view of a rotating frame body.

FIG. 4 is a front view of a rotating frame body.

5 is a cross-sectional view taken along line VV of FIG.

6 is an enlarged cross-sectional view taken along the line 〓-〓 of FIG.

FIG. 7 is an enlarged cross-sectional view of an upper member of the rotary frame body.

FIG. 8 is an enlarged cross-sectional view of a lower member of the rotary frame body.

FIG. 9 is an enlarged view of an essential part showing a first stopper portion formed on the upper member of the rotary frame body.

FIG. 10 shows a first stopper portion formed on an upper member of a rotary frame, (a) is an enlarged plan view of the first stopper portion,
(B) is an enlarged sectional view of the first stopper portion.

FIG. 11 shows a second stopper portion formed on the lower member of the rotary frame, (a) is an enlarged plan view of the second stopper portion,
(B) is an enlarged sectional view of a second stopper portion.

FIG. 12 is a schematic enlarged cross-sectional view showing a rotating frame body under load.

FIG. 13 is a schematic enlarged cross-sectional view showing a rotating frame body when a load is applied.

[Explanation of symbols]

 2 Rotating Frame 4 Mounting Stand 6 Television Receiver 6a Screen 8 Upper Member 10 Lower Member 12 Plate Member 14 Sphere 16 Inner Crimping Part 18 Outer Holding Part 20 Inner Edge 22 Outer Edge 24 Protrusion 26 Sphere Placement 28 Holding hole portion 30 Stopper means 32 First stopper portion 34 Second stopper portion 36 Non-slip member 38 Fixing hole portion

Claims (1)

[Claims] 1. The upper member is rotated by an annular upper and lower member, an annular plate member interposed between these upper and lower members, and a plurality of spheres arranged at equal intervals on the plate member. A structure in which a movable rotary frame is formed, and one of the upper and lower members is formed of a metal material and the other is formed of a synthetic resin material to add rigidity and flexibility to the rotary frame. A rotating frame body characterized in that