JPH0143534Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a rotating body support device that rotatably supports a rotating body.

Configurations of conventional examples and their problems
As shown in the figure. This is a rotating shaft part 2 having a circular cross section of a rotating body 1, and a receiving tool 3 and a holding tool each having a semi-circular bent part along the outer periphery of the rotating shaft part 2 in the center. 4, apply a lubricant 5 such as grease and sandwich the receiver 2 and the presser 4 with screws 6 so that the bent portions face each other across the rotating shaft portion. The end portion of is fixed to a boss 8 of a base 7, which is a fixed portion. However, in this case, the receiver 3
In addition, it is necessary to increase the gap between the presser 4 and the rotating shaft part 2 to a certain extent by taking into consideration the dimensions and variations at the time of manufacturing. ) occurred.

Purpose of the invention The present invention solves the conventional drawbacks as described above,
It is an object of the present invention to provide a rotating body support device that has a simple configuration and can support a rotating body without wobbling or variations in rotational torque.

Structure of the invention In the rotating body support device of the invention, a spring material is bent into an arcuate shape and installed in the gap that occurs when the rotating shaft is supported by a receiving tool and a holding tool so that it is pressed into contact with both, thereby preventing rattling. It is designed to absorb variations in rotational torque.

DESCRIPTION OF EMBODIMENTS A rotating body support device according to an embodiment of the present invention will be described below with reference to FIGS. 3 and 4. In addition, in the figure,
Components similar to those in the prior art are given the same reference numerals as in FIGS. 1 and 2, and their explanation will be omitted.

In this device, as shown in the figure, plate-shaped spring members 9 and 10 are bent into an arched shape and inserted into the gap created between the rotating shaft portion 2 and the receiver 3 or the presser 4. . Note that the engaging protrusions 11 and 12 formed on the spring members 9 and 10 are connected to the receiving tool 3 and the holding tool 4.
By engaging with the engagement holes 13 and 14 formed in the holder 3 and the presser 4, the holder 3 and the presser 4 are positioned and attached. A lubricant 5 is applied to the surfaces of the spring members 9 and 10 that come into contact with the rotating shaft portion 2 to make the rotation easier.

According to this configuration, a constant force can always be applied to the rotating shaft portion 2 in the center direction due to the repulsion caused by the restoring force of the spring members 9 and 10, which prevents rattling of the rotating body 1 and variations in rotational torque. You can help prevent this from happening.

Note that the lubricant 5 can be omitted by selecting the materials of the receiving tool 3 and the holding tool 4 or the rotating shaft portion 2. In addition, the convex portions 11 and 12 and the hole 13,
The relationship in which the holes 14 are provided may be reversed, and the holes may be replaced by grooves. Furthermore, spring materials 9,1
It is also possible to use a wire as the wire.

Effects of the Invention As described above, according to the rotating body support device of the present invention, a spring material having spring properties is bent into an arched shape and installed in the gap between the receiving device and the holding device that loosely attaches the rotating shaft portion. This allows the rotating body to be supported without wobbling or variations in rotational torque by utilizing the restoring properties of the spring material, and is extremely effective in practical use for improving the quality of products that include rotating bodies.
In addition, in the present invention, during assembly, the plate-shaped or linear spring material can be inserted between the receiving tool or the holding tool and the rotating shaft, so the assembly is easy.
Moreover, the bearing structure using a metal fitting having an arcuate bent portion, which has been used in the past, is not enlarged in any way.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional rotating body support device, FIG. 2 is a sectional front view of the same device, FIG. 3 is a sectional front view of a rotating body support device according to an embodiment of the present invention, and FIG. 4 a , b are a plan view and a side view of a spring material used in the device. DESCRIPTION OF SYMBOLS 1...Rotating body, 2...Rotating shaft portion, 3...Receiving tool, 4...Pressing tool, 5...Lubricant, 9, 10...
Spring material, 11, 12... Engaging convex portion, 13, 14...
...Engagement hole.

Claims (1)

[Scope of utility model registration request] A rotary shaft portion of a rotating body having a circular cross section, a receiving device and a presser device each having a semicircular arc-shaped bent portion along the outer periphery of the rotating shaft portion in the center thereof, and the receiving device and presser device. means for fixing the ends to the fixing part so that the respective bent parts face each other via the rotating shaft part; It abuts on the curved part, is bent into an arched shape so that the center part abuts on the rotating shaft part, and the protrusion provided in the center part is engaged with the engagement part provided in the receiver or presser. A rotation support device having a spring material.