JPH0216409A - Plummet instrument for staff - Google Patents

Abstract

PURPOSE:To easily and accurately set up a staff vertically by bringing the horizontal surface of a liquid in a transparent vessel of the title plummet instrument for the staff fitted to the rear face and the side face of the staff in line with a broken line provided to the transparent vessel. CONSTITUTION:The side faces of both sides of the staff (not shown in the figure) are sandwiched and integrated via rubber plates 18 by a left side plate 3 and a sandwiching plate 4 of the plummet instrument V for the staff. The transparent vessel 6 of the plummet instrument V for the staff is mounted on a bottom plate 5 of the plummet instrument V and fixed vertically on a channel 1. The broken line 9 is stamped orthogonally on a side wall of the transparent vessel 6. The liquid 8 is sealed in the vessel 6 and the height of the liquid surface is adjusted by driving a screw 10. The staff is set up so that the liquid surface is brought in line with the broken line 9. By this method, the staff is held vertically simply and accurately.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application This invention relates to a box-measure vertical device for vertically setting a box-measure used in surveying using a spirit level.

(b) Conventional technology Conventionally, in order to hold the box measure vertically, horizontal lines were drawn horizontally at intervals on the side of the box measure. An assistant was fixing the fall.

There was also a method in which the surveyor measured the smallest number by waving a box ruler alternately nine times backwards and forwards.

(c) Problems that the invention aims to solve Surveying with a box scale that depicts horizontal lines is difficult even for experts, and it is rarely used.

In addition, with the method of swinging the 9-box scale back and forth, horizontal tilting must be corrected by the surveyor's signal, and when you look through the spirit level, the value on the box scale moves to hill F, making it easy to make mistakes in measurement. The assistants also required considerable skill.

The object of this invention is to make the box measure vertical by simply attaching a box measure verticalizer to the box measure and aligning the horizontal surface of the liquid in the transparent container with a broken line.

) Means for solving the problem This invention uses a spirit level! This is a device used to vertically hold a box measure.It is explained in the drawing as follows.

The one shown in the first figure is a vertical box ruler, in which a semi-cylindrical transparent container 8 is filled with liquid 7 up to the broken line 6, and is sealed with a lid 1 with a rubber plate 2.

It is screwed into the light container 8.

The transparent container f18 has rubber plates 3 and 4 bonded to the clamping plate 13 that moves with the inside of the side surface 5 of the conical shaped plate 15.

For installation and removal, as shown in FIGS. 2, 3, and 4, use the clamping plate 13 that moves between the side parts 14 and the h-f 7.
The telescopic rod 16 fixed to the clamping plate 13 by moving the grooves 23 and 24 in the V-rules 11 and 12 is connected to the cone-shaped plate 1.
The spring glued between the side surface 140 and the clamping plate 130 is attached to the telescopic rod 16.
It has a handle 17 that is convenient for pulling.

Further, the sandwiching plate 13 is formed of movable plates 21 and 22 so as to be movable in the grooves of the curtain rails 11 and 12.

(E) Function When the liquid 7 in the transparent container 8 naturally decreases, the liquid 1 can be constantly adjusted to a constant level up to the VC broken line 6 using the adjustment dial 9.

Rubber plates 3.4 are used on the cone-shaped plate 15 and the sandwich plate 13, which are attached to the sides of the box shaku, to prevent slipping.

Using the expansion and contraction action of the spring 20, it is possible to freely attach the box scale from the first step to the thinner second and third steps. By simply attaching a box-shaku vertical device to the ridge of the shaku and aligning the horizontal surface of the liquid in the transparent container with the broken line, the box-shaku can be easily stood vertically from any direction. Also, it has the effect of allowing you to easily attach, remove, and remove it to any position on the box scale by simply pulling the handle.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the vertical frame for the box measure. Fig. 2 is a rear view of the vertical frame for the box measure. Fig. 3 is a structural diagram of the clamping plate 13. Fig. 4 is a longitudinal section taken along B-B' of Fig. 2. Surface 1fflA...
・・・・・・Vertical device for box measure B-B'・・・Position l of vertical cross-sectional view・・・・・・・・・Position 5.14・・・Side part 7・・・・・・・・・・Liquid 9...Adjustment dial 11.12...Curtain rail 15...Contour plate 17...Handle 19...Rear section 21 .22...Moving plate 2, 3.4...Rubber plate 6...Dotted line 8...Transparent container lO ......Bolt 13...Pinch plate 16...Extendable rod 18...Hole 20... ...Flip 23+24...Groove concave surface

Claims (1)

[Claims] (b) Attach the box measure vertical device (A) to the back of the box measure so that it is sandwiched between the sides, and align the horizontal surface of the liquid (7) in the transparent container (8) with the broken line (6). can be made vertical when viewed from any direction, and by adjusting the adjustment dial (9) to reduce the liquid (7) inside, the horizontal plane of the liquid (7) can be kept constant up to the broken line (6). There is also a box-measure vertical device (A) that can be installed and removed at any position on the box-measure.