JP3386897B2 - Measurement guide device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for measurement, and more particularly, it guides a measuring device by traveling around the outer periphery of a cylindrical body.
The present invention relates to a new improvement for being able to cope with a change in the diameter of a cylinder.

[0002]

2. Description of the Related Art Conventionally, as a measuring guide device used conventionally, a gear or a belt is mounted in a ring shape on the outer circumference of a cylindrical body as an object to be measured, and the gear or the belt is used as a track for measuring instruments. Was run to measure various characteristics of the cylindrical body.

[0003]

Since the conventional measuring guide device is constructed as described above, the following problems exist. That is, when the gear or belt is mounted on the outer circumference of the cylinder, the gear or belt is manufactured according to the outer circumference of the cylinder to be mounted and has a dedicated size with respect to the cylinder. If the diameter changes, it must be replaced with another gear or belt of a different size, and it is extremely inconvenient to have a guide device for measurement of various outer diameters at the measurement site. , The work efficiency was reduced.

The present invention has been made in order to solve the above problems, and in particular, it is possible to cope with a change in the diameter of a cylindrical body by traveling around the outer periphery of the cylindrical body to guide the measuring instrument. It is an object of the present invention to provide a measuring guide device as described above.

[0005]

A measuring guide device according to the present invention has a running part having a first roller for contacting the outer circumference of a cylindrical body, and a shape provided along both ends of the running part along the outer circumference. A pair of connecting members, first and second connecting portions connected to respective end portions of the respective connecting members, first and second links connected to the respective connecting portions, and connecting between the respective links A connecting body having a second roller, and a screw body provided by being screwed between the respective connecting portions so as to make the distance between the respective connecting portions variable. The traveling unit is configured to be capable of traveling on the outer circumference.

More specifically, each of the connecting members is connected to the running portion via a shaft supporting portion.

More specifically, a holder provided in the central portion of the screw body, a rod provided in the connector and penetrating the holder, and a weight provided in the rod are provided. It is a composition.

[0008]

In the measuring guide device according to the present invention, the running portion and each connecting member are located on the outer periphery of the cylindrical body in a state where the connecting member and each connecting portion are separated from each other. After that, each connecting member and each connecting portion are connected, and when the screw body is rotated to bring the respective connecting portions close to each other, the second roller of the connecting body comes close to the outer periphery of the cylindrical body through the link, and the mounting is performed. Complete. After that, when a measuring device is attached to the running portion and the running portion is rotated along the outer circumference, the running portion runs while the first and second rollers are in contact with the outer circumference, and measurement can be performed. If the outer diameter of the cylinder is different from the previous cylinder when measuring other cylinders, the spread of each connecting member and the position of the second roller can be adjusted freely by rotating the screw. Therefore, it can be installed freely.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the measuring guide device according to the present invention will be described in detail below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a running portion having a plurality of first rollers, and the first roller 2 has an outer circumference 3 a of a cylindrical body 3.
Is in contact with.

First and second connecting members 5 and 6 are rotatably connected to both ends 1a and 1b of the traveling portion 1 via a first shaft supporting portion 4, and each of them is provided. The connecting members 5 and 6 are bent inwardly so as to have a shape along the outer periphery 3a of the cylindrical body 3 and formed inward.

The respective end portions 5a, 6a of the respective connecting members 5, 6
The first and second connecting portions 7 and 8 are detachably connected to the connector via connecting members 9 and 9a having a well-known detachable structure.
First and second links 11 and 12 are connected to the rotary shaft supporting portions via the second shaft supporting portion 10 to the connecting portions 7 and 8, respectively. A connecting body 15 having a plurality of second rollers 14 is operably connected to each end of each of the links 11 and 12 via a third shaft support 13.

A screw body 16 is provided between the respective connecting portions 7 and 8 and is screwed through the respective connecting portions 7 and 8, and the first and second screws 16a and 16b of the screw body 16 are provided. Are formed so as to have mutually opposite threads, and when the screw body 16 is rotated, the connecting portions 7 and 8 can be moved in the direction of arrow A, and the distance D between the connecting portions 7 and 8 can be made variable. It is configured to be able to.

A holding body 20 is provided at the center of the screw body 16, and a rod body 21 provided on the connecting body 15 is provided so as to penetrate the holding body 20.
A weight 22 is provided at one end.

Next, the operation will be described. First, as shown in FIG. 1, the connecting portions 7 and 8 are separated from the connecting members 5 and 6, and the connecting members 5 and 6 are straddled over the cylindrical body 3 so that the first roller 2 is a cylindrical body. It is in a state of being in contact with the outer circumference 3a of the No. Next, the connecting portions 7 and 8 are lifted up along the arrow B to connect the connecting portions 7 and 8 to the end portions 5 of the connecting members 5 and 6, respectively.
As shown in FIG. 2, when the screw body 16 is rotated while being connected to a and 6a, the connecting portions 7 and 8 are moved, the connection body 15 is moved inward, and the second roller 14 is cylindrical. It contacts the outer circumference 3 a of the body 3.

In the above-mentioned state, a measuring device (not shown) is provided on the traveling unit 1, and the traveling unit 1 is rotated together with the connecting members 5 and 6 so that the rollers 2 and 14 are rotated around the outer circumference 3a.
It is possible to perform various inspections of the outer circumference 3a of the cylindrical body 3 while guiding the measuring instrument while contacting the.

When the cylindrical body 4 is to be replaced with another cylindrical body having a different outer diameter, the traveling portion 1 is mounted on the outer periphery 3a and the screw body 16 is rotated by the same operation as described above. The roller 14 can be freely brought into contact with the outer circumference, and can be freely attached to the cylindrical bodies 4 having different outer diameters with only one measuring guide device.

[0017]

Since the measuring guide device according to the present invention is constructed as described above, the following effects can be obtained. That is, the pair of connecting members provided on the traveling portion can be freely rotated by the pair of connecting portions and the screw body to be freely attached to the cylindrical bodies having different outer diameters. With the measuring guide device, the measuring instrument can be guided without using a conventional gear or band.

[Brief description of drawings]

FIG. 1 is an exploded front view showing a measurement guide device according to the present invention.

FIG. 2 is a front view showing a usage state of FIG.

[Explanation of symbols] 1 running section 1a, 1b both ends 2 First roller 3 cylindrical body 3a outer circumference 4 shaft support 5,6 First and second connecting members 7,8 First and second connecting parts 11,12 First and second links D distance 14 Second roller 15 connection 16 screw body 20 holder 21 bar 22 Weight

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01D 21/00 G01N 29/00 B61B 13/06 B62D 57/02

Claims (3)

(57) [Claims] 1. A running part (1) having a first roller (2) for contacting an outer circumference (3a) of a cylindrical body (3), and provided on both ends (1a, 1b) of the running part (1). And a pair of connecting members (5, 6) having a shape along the outer circumference (3a), and each end (5a, 5a, 6a) of each connecting member (5, 6).
5b) connected to the first and second connecting portions (7, 8), the first and second links (11, 12) connected to the connecting portions (7, 8), and the respective links ( Between the connection body (15) connected between the connection parts (11, 12) and having the second roller (14) and the connection parts (7, 8) screwed between the connection parts (7, 8) And a screw body (16) for varying the distance (D) of each roller (2, 14) to the outer periphery (3a)
A guide device for measurement, characterized in that the traveling part (1) is configured to be capable of traveling on the outer periphery (3a) in contact with. 2. The connecting members (5, 6) are provided on the traveling portion (1).
The measuring guide device according to claim 1, wherein the measuring guide device is connected to the shaft via a shaft support (4). 3. A holding body (20) provided in the center of the screw body (16) and the holding body (20) provided in the connection body (15).
A rod (21) penetrating through and a weight provided on the rod (21)
(22) The measuring guide device according to claim 1 or 2, further comprising: