JPS5828487A - Ball locking mechanism - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a removable goal locking mechanism used in an ITV camera mounting portion of a manipulator, etc.

Currently, manipulators are widely used in many fields, and they play an important role in environments that cannot be easily accessed by humans, especially in nuclear power-related fields. That is, under special circumstances, as shown in Figure 1.

Manigrator body IK:! Attach Sick Hand 2 and
The manipulator is operated while monitoring the tip of the sick hand 20 with an ITV camera 3. However, in such an environment, if the ITV camera 3 breaks down or its useful life has passed, the camera itself must be replaced by remote control. It must be constructed so that it can be easily attached and detached.

However, traditional! As shown in Fig. 2, the nigerator main body 1 and the ITV camera 3 are mounted by providing an annular groove 4a in the fitting hole 4 of the mounting portion 1a formed by the maniplate main body IK, and fixing the I-TV camera 3 thereto. A method is adopted in which a spring 6 and a steel ball 7 are attached to a metal plate 5, and a mounting metal fitting 8 having a locking mechanism is fixed, and a metal metal fitting 8 is fitted and fixed into the mounting part 1& of the maniplate main body 1. A friend of mine. Therefore, in this conventional structure, when the mounting bracket 8 is fitted, the steel ball 7 is pulled back and the fitting hole 40 is closed.
Since the mechanism is such that when the manipulator body 1 is pushed out and locked again, there is no reaction force anywhere when fitting or pulling out, and a large amount of force is applied to the tip of the manipulator body 1. In order to solve the drawbacks of the conventional structure, the present invention aims to improve the ITV camera mounting part of the manipulator body. The purpose of this invention is to provide a single locking mechanism that is configured so that the goal locking mechanism used in the A fitting hole is provided on the inner periphery, and a mounting bracket to be inserted into the fitting hole is rotatably attached to one end of the mounting base via an axis formed with a notch having a width across flats. , a through hole into which a steel ball is inserted is provided in the mounting fitting corresponding to the notch.

Hereinafter, a single lock mechanism according to the present invention is shown in FIGS. 3 to 5 and will be described in detail with reference to the following embodiments.

Figure 3 shows the manipulator main body 11 and the KITV camera 13 attached thereto in a detachable manner. - It is a partially broken side view showing the locking mechanism, and is a mounting part 1 of the manipulator main body 11.
1aK is provided with a fitting hole 14 having a rectangular cross section in this embodiment, and this rectangular fitting hole 14 has a fitting hole l on the inner periphery.
O) An engagement groove 14a having a large diameter is formed.

On the other hand, the ITV camera 13 is fixed to one end of the mount 151, and the other end of the mount 15m is pivotally connected to the bracket 15b' of the mount 15b by a pin 12 so that it can rotate up and down. The other end of the mounting base 15b has the mounting portion 1
In this embodiment, a fitting hole 14#IC is inserted into the fitting hole 1& of the mounting bracket 18, which has a square cross section and is rotatably attached to the outer periphery of the shaft core 200. As shown in FIG. A steel ball 1 is formed on the upper surface of the outer circumferential side of the shaft core 20, and a steel ball 1 is formed in the friend groove 21 &
7b is attached by a spring 22, and the mounting bracket 18 is rotated and locked at every 90 degrees.The lower surface of the mounting base 15b corresponds to the locus of the steel ball 17b. A lock 1ll121b is formed. In addition, a notch 1B20m having a width across flats is formed in the shaft core 20 on which the mounting bracket 18 is rotatably mounted, and a steel ball 17m is formed on the opposite surface of the mounting bracket 18 corresponding to this notch 20&. A inserted through hole 23 is bored. The steel ball 17& is formed so that the through hole 23 and the notch 20m coincide with each other, so that the steel ball 17 does not protrude beyond the outer circumference of the mounting bracket 18, and when the mounting bracket 18 is rotated 90 degrees, the steel ball 1
Place the steel ball 1 so that 7 m protrudes from the outer circumference of the mounting bracket 18.
Diameter of 7&, wall thickness of mounting bracket 18, and notch I of shaft core 20
The depth of L 20 m, etc. are set respectively.

Mounting stand 15b with ITV camera 213 attached
When attaching to the attachment part 11a of the manipulator main body 11, as shown in No. 5E(&)K, rotate the attachment fitting 18 so that the through hole 23 and the notch 20& of the shaft center 20 are aligned,
With the steel ball 171 not protruding from the mounting bracket 18, insert it into the fitting hole 14 provided in the mounting part 11& of the manipulator main body 11, and rotate the mounting base 15b by 90 degrees to the left or right to align the axis. 20 rotates together with the mounting base 15b, the steel ball 17& is pushed outward on the outer periphery of the shaft core 20 within the through hole 23, protrudes from the engagement groove 14aK'' in the fitting hole 14, and is locked. At this time, the steel ball 1?b mounted on the upper surface of the mounting bracket 18 is also formed on the lower surface of the mounting base 15b, and is then locked by engaging with the locking groove 2ibK.

On the other hand, when removing the ITV camera 13 for replacement, etc., as shown in FIG. For example, the steel balls 171 and 17b may come out of their predetermined position and be easily removed.
It is something that can be removed.

As described above in detail based on the embodiment shown in the drawings, the goal lock mechanism according to the present invention has a simple structure, and moreover, the goal lock mechanism requires no operating force in the insertion and removal directions. What if you don't need it? Flocking and unlocking is possible with a small rotational force using the -o principle. Therefore, when attaching or removing an ITV camera, etc. to the manipulator body, no reaction force is applied to the manipulator, so the main body will not be damaged and the durability will be improved. It has the advantage that it can be easily attached and detached.

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show the conventional structure, Fig. 1 is a side view showing the mounting state of the manigrator body and ITV camera, and Fig. 2 is a partially cutaway side view of the main part showing the conventional embodiment. be. , FIG. 3 is a partially cutaway side view showing the goal locking mechanism according to the present invention, and FIG. 4 is B of Fig.
-B sectional view, FIGS. 5(a) and 5(b) are operation explanatory diagrams, and FIG. In the drawing, the flFiw nigerator main body, 11a is the mounting part, 14 is the fitting hole, 141 & is the engagement groove 1, 16m, 15b is the mounting base, 17m, 17b are the steel balls, 18 is the mounting bracket, 20 is the shaft center, 20m is the notch Department. 21m and 21b are grooves, and 23 is a through hole. Special Fraud Applicant Co., Ltd. Meidensha Patent Attorney Shibu Mitsuishi (and 1 other person)

Claims (1)

[Claims] A fitting hole having an engagement groove on the inner periphery is provided in the main body mounting part, and a mounting bracket to be inserted into the fitting hole at one end of the mounting base is inserted through an axis formed with a notch having a width across flats. A single lock mechanism, which is rotatably mounted, and wherein a through hole into which a steel ball is inserted is provided in the mounting bracket corresponding to the notch.