JPH0647980U - Turntable - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a turntable that can be rotated while an article requiring a power source, such as a Christmas tree with a decorative light and a refrigerator, is mounted, thereby enhancing the advertisement effect of the article. [Structure] Two contact plates 8 and 9 having elasticity connected to a predetermined power source are provided on a support base 3 in a casing 2 so as to project upward. Eight steel balls 5 are rotatably fitted to the upper part of the support base 3 in an annularly arranged form. On the other hand, three annular steel plates are concentrically attached to the lower surface of the turntable 17, and these steel plates are respectively contact plates 8, 9
And so as to abut the steel ball 5. [Effect] Since the turntable 17 is supported by the casing 2 via the eight steel balls 5 and the steel plate, a heavy object can be stably supported and rotated. Also, the casing 2 and the turntable 1
An electrical connection with the contact plate 8 having elasticity,
9 and the steel plate, the connection can be stably held.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a turntable that can be rotated while an article requiring a power source, such as a Christmas tree with a decorative light or a refrigerator, is mounted, thereby enhancing the advertisement effect of the article.

[0002]

[Prior art]

 In this type of turntable, it is important to electrically connect the main body to a turntable rotatably supported by the main body. Conventionally, this connection method has a simple structure in which a carbon brush is provided on the main body through a spring so as to project and retract toward the rotary base side, and the carbon brush is used as an electrical contact. Things were the mainstream.

[0003]

[Problems to be solved by the device]

 However, this has not been able to stably support heavy objects because of its simple structure. In addition, there is a risk that the electrical connection with the carbon brush may become unstable, and if the spring deteriorates, the carbon brush will not function as an electrical contact.

In view of the above circumstances, the present invention aims to provide a turntable capable of stably supporting a heavy object and stably maintaining an electrical connection.

[0005]

[Means for Solving the Problems]

 That is, according to the present invention, in a turntable (1) comprising a casing (2) and a turntable (17) rotatably supported on the casing, a support stand (3) is provided on the casing, Two elastic contact plates (8, 9) connected to a predetermined power source are provided on the supporting base so as to project upward, and three or more steel ball engaging holes ( 3a) are arranged in an annular shape, oil reservoirs (3b) are provided at the bottoms of the steel ball engaging holes, and the oil reservoirs are filled with lubricating oil (6). A steel ball (5) is rotatably fitted in each of the ball engaging holes, and two annular conductive plates (21, 22) are respectively attached to the two contact plates on the lower surface of the rotary table. An annular support plate (23) is provided on the lower surface of the rotary table so as to abut the steel balls. That provided in the form, the outlet (27) to said turntable is mounted the insert Write-mouth in the form of upward, and the terminals of the outlet by their respective connection to the conductive plate.

A holder (25) is provided on the upper surface of the rotary table (17).

The numbers in parentheses are for convenience of representing corresponding elements in the drawings, and the present invention is not limited to the description in the drawings. The same applies to the "Claims for utility model registration" and "Action" columns.

[0008]

[Action]

 According to the present invention, the rotating table (17) has the casing (7) through the plurality of steel balls (5) fitted to the supporting table (3) in a rolling manner and the supporting plate (23). While being supported by 2), the electric connection between the casing and the rotary base is performed via the elastic contact plates (8, 9) and the conductive plates (21, 22).

[0009]

【Example】

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

FIG. 1 is a perspective view showing an embodiment of a turntable according to the present invention, FIG. 2 is a perspective view of a turntable constituting the turntable shown in FIG. 1 as seen obliquely from below, and FIG. 3 is shown in FIG. Sectional drawing which shows the contact state of the steel ball and steel plate which comprise a turntable, FIG. 4 is a perspective view which shows the state which mounted the Christmas tree with a decorative light on the turntable shown in FIG.

As shown in FIG. 1, a turntable 1 according to the present invention has a casing 2 having a bottomed cylindrical shape, and a cylindrical support base 3 is fixedly installed in the center of the casing 2. ing. As shown in FIGS. 1 and 3, eight spherical steel ball engaging holes 3a are formed in an annular shape at an upper portion of the support base 3 at equal angular intervals (that is, 45 ° intervals). A steel ball 5 is rotatably fitted in each steel ball engaging hole 3a. An oil sump 3b is provided at the bottom of each steel ball engagement hole 3a, as shown in FIG. 3, and each oil sump 3b is filled with a lubricating oil 6. Further, a shaft center engaging hole 3c is formed in the central portion of the support base 3, and two elastic contact plates 8 and 9 are attached so as to project upward.

Further, as shown in FIG. 1, a motor 10, a fuse box 11, a circuit portion 12 and a speaker 13 are arranged in the casing 2 so as to surround the support base 3, and a plug 15 is provided in a predetermined shape. When the external gear 16 fitted to the rotating shaft 10a of the motor 10 rotates at a predetermined rotation speed, a predetermined music flows from the speaker 13 in a state where the external gear 16 is inserted into the power source (not shown). The volume of the speaker 13 can be adjusted by turning a volume (not shown) provided in the circuit section 12.

On the other hand, as shown in FIG. 1, on the upper side of the casing 2, a disk-shaped rotary table 17 is provided so as to be rotatably supported in the direction of arrow M. As shown in FIG. 2, a shaft center 19 is provided at the central portion so as to project downward so as to be fitted into and engaged with the shaft center engaging hole 3c of the support base 3. Further, three annular steel plates 21, 22, 23 are concentrically attached around the shaft center 19, the steel plate 21 abuts the contact plate 8, and the steel plate 22 is the contact plate. 9 and the steel plate 23 is in contact with the eight steel balls 5. Further, an internal gear 20 is formed on the peripheral portion of the lower surface of the rotary table 17, and the internal gear 20 meshes with the external gear 16. Further, as shown in FIG. 1, a holder 25 is provided on the upper surface of the turntable 17, and the holder 25 is composed of a substantially conical tubular body 24 and four screws 26. That is, the holder 25 has a tubular body 24 fixed to the central portion of the upper surface of the rotary table 17, and four screws 26 are provided near the upper end of the tubular body 24 at the center of the tubular body 24. It is horizontally screwed in the form of facing. Further, as shown in FIGS. 1 and 2, an outlet 27 is mounted on the turntable 17 with its insertion port facing upward, and each terminal of the outlet 27 has a conductor 28, 29. It is connected to the steel plates 21 and 22 through.

Since the turntable 1 according to the present invention has the above-described structure, when the Christmas tree 30 with a decorative light is placed and rotated on the turntable 1 as shown in FIG. First, the trunk portion 30a of the Christmas tree 30 with a decorative light is inserted into the tubular body 24 of the holder 25, and the four screws 26 are turned to fix the Christmas tree 30 with a decorative lamp to the holder 25 (hence, the turntable 17). To do. Then, the plug 32 provided on the Christmas tree 30 with a decorative light is inserted into the receptacle 27 on the turntable 17.

Next, the plug 15 is inserted into a predetermined power source (not shown). Then, a predetermined music flows from the speaker 13, and the external gear 16 fitted to the rotary shaft 10a of the motor 10 rotates at a predetermined rotation speed, and the internal gear 20 meshed with the external gear 16 is passed. The turntable 17 rotates in the direction of arrow M. Along with this, the Christmas tree 30 with a decorative light, which is fixed to the turntable 17 via the holder 25, rotates, and a large number of decorative lights 31 blink.

At this time, the casing 2 and the rotary base 17 are electrically connected to each other through the steel plates 21 and 22 which are in contact with the contact plates 8 and 9, but the steel plates 21 and 22 have an annular shape. Since it is formed, the contact state between the contact plates 8 and 9 and the steel plates 21 and 22 is always maintained even if the steel plates 21 and 22 rotate as the turntable 17 rotates. The blinking operation is performed without any trouble. Further, since the contact plates 8 and 9 have elasticity, even if the steel plates 21 and 22 are slightly moved up and down when the turntable 17 is rotated, the contact plates 8 and 9 are elastically bent and the contact plates 8 and 9 are vertically moved. Since the movement can be absorbed, the contact between the contact plates 8 and 9 and the steel plates 21 and 22 can always be made good.

Further, the rotary table 17 is supported by the casing 2 through eight steel balls 5 and a steel plate 23 which are rotatably fitted to the support table 3, and the rolling friction coefficient is a sliding friction coefficient. Since it is smaller, the rotating operation of the turntable 17 can be performed without any problem in a state where the Christmas tree 30 with a decorative light, which is a heavy object, is stably supported. Moreover, as shown in FIG. 3, each steel ball 5 is fitted into each steel ball engaging hole 3a of the support base 3 through the lubricating oil 6, so that the steel ball 5 is smooth over a long period of time. As a result, the rotary table 17 can be smoothly rotated for a long period of time.

In the above embodiment, the turntable 1 in which the eight steel balls 5 are fitted into the steel ball engaging holes 3a of the support base 3 at equal angular intervals has been described. The number may be any number as long as it is three or more, and the steel balls 5 are not necessarily arranged at equal angular intervals.

Further, in the above embodiment, the turntable 1 in which the holder 25 is provided on the upper surface of the rotary table 17 has been described. However, it goes without saying that the holder 25 is not necessary when a self-supporting product such as a refrigerator is rotated while being placed, thereby enhancing the advertising effect of the product.

[0020]

[Effect of device]

 As described above, according to the present invention, in the turntable 1 including the casing 2 and the rotating table 17 rotatably supported on the casing 2, the supporting table 3 is provided on the casing 2 and the supporting table 3 is provided. On the base 3, two elastic contact plates 8 and 9 connected to a predetermined power source are provided so as to project upward, and three or more steel ball engaging holes 3a are provided on the upper part of the support base 3. The steel balls are formed in an annular shape, and oil reservoirs 3b are provided at the bottoms of the steel ball engaging holes 3a. Lubricating oil 6 is filled in the oil reservoirs 3b. A steel ball 5 is rotatably fitted to each of the two contact plates 8, and conductive plates such as two annular steel plates 21 and 22 are brought into contact with the two contact plates 8 and 9 on the lower surface of the turntable 17. Is provided on the lower surface of the rotary table 17 and has an annular steel plate 23 or the like. A support plate is provided so as to be in contact with each of the steel balls 5, an outlet 27 is attached to the rotary table 17 with its insertion opening facing upward, and each terminal of the outlet 27 is connected to the conductive plate. Since the rotary table 17 is supported by the casing 2 via the plurality of steel balls 5 rotatably fitted on the support table 3 and the support plate, a heavy load such as a refrigerator can be supported. It can be stably supported and rotated. Further, since the casing 2 and the rotary base 17 are electrically connected to each other through the elastic contact plates 8 and 9 and the conductive plate, the connection can be stably maintained.

If the holder 25 is provided on the upper surface of the rotary table 17, the holder 25 can hold non-independent articles such as the Christmas tree 30 with a decorative light. It is possible to expand the applicable range of 1.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a turntable according to the present invention.

FIG. 2 is a perspective view of a turntable that constitutes the turntable shown in FIG. 1, as seen from diagonally below.

FIG. 3 is a cross-sectional view showing a contact state between a steel ball and a steel plate forming the turntable shown in FIG.

FIG. 4 is a perspective view showing a state in which a Christmas tree with a decorative electric light is placed on the turntable shown in FIG.

[Explanation of symbols]

 1 ... Turntable 2 ... Casing 3 ... Supporting base 3a ... Steel ball engaging hole 3b ... Oil sump 5 ... Steel ball 6 ... Lubricating oil 8, 9 ... Contact plate 17 ... Rotating base 21 , 22 ... Conductive plate (steel plate) 23 ... Support plate (steel plate) 25 ... Holder 27 ... Outlet

Claims (2)

[Scope of utility model registration request] 1. A turntable (1) comprising a casing (2) and a turntable (17) rotatably supported on the casing, wherein a support (3) is provided on the casing, and the turntable (3) is provided. 2 which has elasticity and is connected to a predetermined power source
Each of the contact plates (8, 9) is projected upward, and three or more steel ball engaging holes (3a) are formed in an annular shape on the upper part of the support base, An oil sump (3b) is provided at the bottom of each steel ball engagement hole, each oil sump is filled with lubricating oil (6), and each steel ball engagement hole is made to roll a steel ball (5). And two ring-shaped conductive plates (21, 2 and 2) on the lower surface of the turntable.
2) are provided in contact with the two contact plates, respectively, and an annular support plate (23) is provided on the lower surface of the turntable so as to abut each steel ball, and an outlet (27) is attached to the turntable. ) With its insertion opening facing upward, and each terminal of the outlet is connected to the conductive plate. 2. A holder (25) on the upper surface of the turntable (17).
The turntable according to claim 1, wherein the turntable is provided.