JPS5910571Y2 - recording scale - Google Patents

Description

[Detailed explanation of the idea] (Target of invention/field of industrial use) The invention is used in the field of metrology.

More specifically, it is used in the field of measurement in civil engineering works.

This invention relates to the improvement of recording scales (prior art) In civil engineering work, etc., it is used for post-processing after the construction is completed, and especially to check whether the foundation work buried underground after the construction is completed as designed. It is mandatory to keep photographic records of the status of each stage of construction in order to confirm whether or not the work has been completed.
At that time, 60 to 150 mm should be used as a standard for determining the situation at the scene.
A wide recording scale was used along the scene to take pictures at the same time.

This recording scale has the structure shown in Figure 1, and consists of a scale body 1, a hook 2 attached to the rear end (on the O scale side), and a protector 3 attached to the front end (on the final scale side). The protective gear 3 has a hole for passing the string 8 through, and a gold ring 35 for passing the string 8 through.

This structure has already been proposed in Japanese Utility Model Application Publication No. 49-32651, Japanese Utility Model Application Publication No. 56-46815, and Japanese Utility Model Application Publication No. 53-108356.

How to use this recording scale, attach the hook 2 to the starting point of the measuring point.
, pass the string 8 through the hole made in the protector 3 or the gold ring 35 attached to the protector 3, and pull the string 8 to tension the entire shaku and point the scale toward the camera. If the scale 8 is twisted or the wind is blowing, the scale body 1 will rotate and it will be extremely difficult to fix it with the reading surface facing the camera.

In addition, in actual construction sites, it is rare that there is a place to hang the hook 2 at the measuring point, and in many cases, a square lumber or concrete block is placed at the starting point of the measuring point, and it is used by hooking it, but The protruding piece 25 of the tool 2 is 2 to 3 cm.
Because it is short, it easily comes off from the hooked object.

(Purpose of the present invention) The purpose of the present invention is to fix the measuring surface so that it immediately faces the camera without causing the main body to rotate, even when the wind is blowing, when taking documentary photographs during civil engineering work. The purpose of the present invention is to provide a recording scale that can perform

(Structure of the Invention) The technical means of the present invention taken to achieve the above object are as follows.

(a) The protector 3 is attached to the front end of the shaku body 1; (b) The handle 5 is attached through the protector 3 or integrally with the protector 3.
(c) The handle 5 and the shaku main body 1 are attached so that when the handle 5 is fixed, the shaku main body 1 is also fixed. (d) The handle 5 is made of wire material. A wide space 51 is formed by bending or punching out a plate, and is wide enough to allow insertion of four fingers excluding the thumb.
(e) The upper part of the space 51 has a grip part 52 that is easy to grip.

(Example) The present invention will be explained in more detail based on the example shown in the drawings.

The recording scale consists of a scale body 1 with a scale, a hook 2 and a protective device 3.
It is equipped with.

For the sake of accuracy, the shaku body 1 is made of glass fiber with a core made of glass fiber and covered with vinyl chloride.
Needless to say, it is not limited to this.

A hook 2 is attached to the rear end of the shaku body 1.

The hook 2 is made by placing the back sides of newly curved plates with an L-shaped cross section facing each other, sandwiching the shaku body 1 between them, and holding the shaku body 1 between them with a bed 34, or by holding the shaku body 1 alone with an L-shaped cross section It is attached to the main body 1, and generally a metal plate is used, but a plywood or resin plate may also be used.

This hook 2 is provided with a hole 4 into which a pin, rod, etc. can be inserted.

The hole 4 is provided at the rising edge 22 of the hook 2 as shown in FIG. It is preferable to have both shapes.

In addition, when the hole 4 is shaped like a ridge 22, it is convenient for use if the rearmost end of the hole 4 and the O starting point of the length main body 1 coincide, but the invention is not limited to this.

A protective device 3 is attached to the front end of the shaku body 1.

The protective gear 3 is made by bending a plate into an inverted U-shaped cross section, inserting the front end of the shaku body 1 into the opening, and fixing it with rivets 34.
Like the hook 2, it may be made of a metal plate, a plywood plate, or a resin plate, and the bent portion 31 has a cylindrical portion to which a handle 5, which will be described later, can be loosely attached.

A handle 5 is attached to this protective equipment 3.

The handle 5 is formed by bending a wire rod or punching a plate into a rectangular or triangular shape having a wide space 51 that allows insertion of four fingers excluding the thumb. The upper part has a grip part 52 that is easy to grip.

The handle 5 is movably held by the cylindrical portion of the bent portion 31.

Note that the iron wire may be shaped like a mouth and inserted into the opening of the bent portion 31 for attachment.

Therefore, the handle 5 and the shaku main body 1 are attached so that when the handle 5 is fixed so as not to move, the shaku main body 1 is also fixed.

Further, when storing the recording scale, it is wound up from the front end, and it is preferable that there are no unnecessary protrusions as much as possible.

Therefore, a notch 32 is formed at both ends of the folded part 31 of the protector 3, and a handle 5 with the same width as the shaku body 1 is formed in the notch 32.
Attach.

In this case, depending on the position of the rivet 34, when the handle 5 is tilted toward the shaku body 1 side, the handle 5 may hit the rivet 34 and not be able to fully fall down. In this case, the handle 5 is shown in FIG. Bend it in the longitudinal direction of the shaku body 1 as shown in FIG.

In this embodiment, when the recording scale is rolled up and stored, unnecessary protrusions do not come out from the recording scale, so it is convenient to handle.

Therefore, when using the recording scale according to the present invention, place the recording scale along the location to be recorded in the photograph, align the rear end with the starting point of the measurement location, and insert the pin or rod into the hole 4 to fix the hook 2. By holding the rear handle 5 and tensioning the shaku main body 1, and fixing the handle 5 so that it does not move, the shaku main body 1 also does not move and a photograph for recording can be taken immediately.

(Effect of idea) The present invention produces the following effects.

(b) A protective device is attached to the front end of the shaku body, and the handle is formed through the protective device or integrally with the protective device, and when the handle and the shaku body are fixed, the shaku body is also fixed. Since the handle is fixed, the shaku main body is also fixed, and even in strong winds, the shaku main body does not rotate or twist, and you can immediately point the reading surface toward the camera to record. You can take photos for personal use.

(b) The handle is made by bending a wire or punching out a plate to form a space wide enough to insert four fingers excluding the thumb, and a grip part on the top of the space that is easy to grip. This makes it easy to tension the shaku body, and since the overall width of the handle is long, the shaku body hardly twists even under strong winds.

[Brief explanation of drawings]

Figure 1 is a perspective view of a conventional recording scale with some parts omitted;
The figure is a partially omitted front view, Figure 3 is a side view with the handle folded,
FIG. 4 is a perspective view showing the state of use. 1: Shaku body, 3: Protective equipment, 5: Handle, 51: Space, 5
2: Grip part.

Claims (1)

[Scope of claim for utility model registration] In a recording scale having a hook at the rear end of the scale body, (a) a protective device 3 is attached to the front end of the scale body 1; (b) a protective device 3 is attached to the front end of the scale body 1; Handle 5 through or integrally with protective equipment 3
(c) The handle 5 and the shaku main body 1 are attached so that when the handle 5 is fixed, the shaku main body 1 is also fixed. (d) The handle 5 is made of wire material. A wide space 51 is formed by bending or punching out a plate, and is wide enough to allow insertion of four fingers excluding the thumb.
(e) The upper part of the space 51 has a grip part 52 that is easy to grip. A recording scale that meets the above-mentioned discipline requirements.