JPS5819973Y2 - Stopper device for extreme rotation - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stopper device for extreme rotation.

FIGS. 1 and 2 show a generally used stopper device for turning the limit. A support base 2 protrudes from the inner circumferential surface of a cylindrical body 1.
A circular rail 3 is installed on the circular rail 3, and there is a revolving body 5 which is capable of reciprocating rotation and is placed on the circular rail 3 via wheels 4, and the revolving body 5 moves integrally with the revolving body 5. A movable stopper 6 is fixed via a stopper frame γ, and a fixed buffer stopper 9 is fixedly attached to the cylindrical body 1 via a stopper frame 8.

In the rotation limit stopper device having such a configuration,
At one turning limit when the stopper 6 hits the buffer stopper 9, the state is shown by the solid line in FIG. 2, and at the other turning limit, the state is shown by the imaginary line in FIG. 2.

In this case, as shown by the diagonal lines in FIG. 2, the revolving body 5 is in a state in which it cannot rotate within a section 10 of the width of the movable stopper 6, the fixed side stopper frame 8, and the buffer stopper 9, and around 360° and 3600 degrees. This was a problem for rotating structures that required the above-mentioned turns.

This invention was developed in view of the above circumstances, and its purpose is to provide a turning limit stopper device that allows a rotating body to swing back and forth through 360 degrees and more than 360 degrees.

An embodiment of this invention will be described below with reference to FIGS. 3 to 5.

Components that are the same as those in FIGS. 1 and 2 are given the same reference numerals, and their explanation will be omitted.

A stopper frame 11 is attached to the rotating body 5, and two stopper receivers 12 are attached to the upper and lower parts of the stopper frame 11 facing each other with a gap left and right. A shaft 13 is attached between each of the shafts 13 and 12, and a single stopper 15 on the possible side is mounted and supported on the vertical shaft 13.

On the other hand, a fixed-side buffer stopper 9 is attached to the cylindrical body 1 via a stopper frame 8 as in the conventional case.

The slide stroke 1 of the movable stopper 15 is set to a distance equal to the total width of the stopper 15, the stopper frame 8, and the fixed stopper 9.

To explain the operation of this device, in the extreme when the rotating body 5 rotates 3600 degrees in one direction, the possible HIQ stopper 15 slides on the shaft 13 and the fourth
The contact is stopped in the state shown by the solid line in the figure and FIG.

Also, at the extreme limit when the rotating body 5 rotates 360° in the other direction, the movable stopper 15 slides the shaft 13 in the opposite direction to the above and comes to abut and stop in the state shown by the imaginary line in FIGS. 4 and 5. .

By sliding the fiQ stopper 15 in this manner, the rotating body 5 can make 3600 reciprocating turns.

Incidentally, instead of the movable stopper 15 of the swing limit stopper device shown in FIGS. 3 to 5 described above, a slide stopper 15a having two slide bearings 14 arranged at the bottom as shown in FIG. 6 is used.
By providing this, it is possible to increase the amount of movement during sliding and eliminate the interference between the shaft 13 and the slide bearing 14.

Furthermore, this invention is not limited to the above-described embodiment, and the slide stroke l of the movable stoppers 15 and 15a may be set to be large, so that the rotating body 5 can make a reciprocating rotation of 3600 or more. Be able to exercise.

Furthermore, in the above embodiment, the movable stoppers 15 and 15a attached to the revolving body 5 were slidably supported.
Conversely, the movable stoppers 15 and 15a may be fixedly attached to the rotating body 5, and the fixed buffer stopper 9 may be supported by the stopper frame 8 so as to be slidable by a predetermined stroke.

Alternatively, both the movable stoppers 15 and 15a and the fixed buffer stopper 9 may be slidably supported.

It goes without saying that either the movable side or the fixed side can be used for cushioning purposes.

Since this idea was made as detailed above, the revolving body is 36
A turning limit stopper device is obtained which allows reciprocating turning movement of 0° or more.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional example, Fig. 2 is an enlarged plan view of the main parts of the conventional example, Fig. 3 is a sectional view showing an embodiment of this invention, and Fig. 4 is an enlarged view of the main parts. A front view, FIG. 5 is an enlarged plan view of the same important part, and FIG. 6 is an enlarged front view of the main part showing a modification of this invention. 1... Cylindrical body, 2... Support stand, 3...
...Circular rail, 4...Wheel, 5...
...Swivel body, 6...Movable side stopper, 1...
...Frame for stopper, 8...Frame for stopper, 9...Fixed side stopper, 10...
... Section, 11 ... Stopper frame, 1
2... Stopper receiver, 13... Shaft, 14
...Slide bearing, 15.15a...
Movable side stopper, 4...Slide stroke.

Claims (1)

[Scope of utility model registration request] A movable side stopper attached to a rotating body that makes reciprocating swinging motion, and a fixed side stopper arranged at a position where the movable side stopper stops as the rotating body rotates, the movable side stopper and the fixed side stopper. 1. A stopper device for turning limits, characterized in that a stopper frame is provided to support one or both of the above so as to be slidable over a predetermined stroke.