JPH0419465Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a plumbmeter that can prevent a decrease in the accuracy of a pendulum-type plumbmeter.

[Prior art] Conventionally, as a plumbmeter for accurately measuring the vertical direction, a pendulum with a pendulum rod shaft support extending into the main body and a toothed tip is fixed with a stopper when not in use. There was one in which a pointer was fixed to a pinion that engaged with the rack or a gear that engaged with the pinion, and the swing of the pendulum due to the inclination of the main body was magnified by the pointer.

[Problems to be solved by the invention] In such a plumbmeter, the magnification of the inclination indication by the pointer is usually set high in order to ensure precision. Therefore, when trying to set a certain surface vertically, if the slope from the vertical direction is large at the beginning, the pendulum and pointer will swing out, and
If you are not very careful when correcting this, you will likely end up swinging it to the other side, and repeating this will gradually impair the accuracy of the plumb meter.

This invention solves the above problems that existed in the past,
It is an object of the present invention to provide a plumbmeter that can prevent a decrease in the accuracy of a pendulum-type plumbmeter.

[Means for Solving the Problems] To explain the structure of the present invention to achieve the above object, the present invention has a pendulum rod 2a extending in the main body 1, and a rack having teeth at the tip. A pinion 5 is provided which pivotally supports a pendulum 2 formed into a rack 3 so that it can be fixed by a stopper 4 when not in use, and meshes with the rack 3.
Alternatively, in a device in which a pointer 6 is fixed to a gear meshing with the pinion 5 and the swing of the pendulum 2 due to the inclination of the main body 1 is magnified by the pointer 6 to measure the vertical direction, the vertical vial 7 is connected to the bubble 7a. Pertaining to a plumbmeter, characterized in that the main body 1 or the main body 1 is fixed to the display side of the pointer 6 of a box-shaped body 8 to which the main body 1 is fixed so that the moving direction of the pendulum 2 coincides with the vibration direction of the pendulum 2. It is.

[Function] When attempting to set a certain surface vertically using the plumbmeter of the present invention, with the pendulum 2 fixed by the stopper 4, first detect the vertical direction using the vertical vial 7, and then set the stopper 4. Remove pendulum 2
It is sufficient to release the fixation of the pointer and detect it precisely with the pointer 6. Thereby, a decrease in accuracy due to swinging of the pendulum 2 can be prevented. In this case, since the vertical bubble tube 7 is fixedly installed on the pointer 6 display side of the main body 1 or the box-like body 8, the efficiency of measurement is good.

[Example] The plumbmeter of the present invention has a horizontal bubble tube 9 fixed to the main body 1 or the box-like body 8 so that the moving direction of the bubble 9a corresponds to the longitudinal direction of the box-like body 8. It is desirable that the This is because by using the horizontal vial 9, it is possible to satisfy the need to measure the horizontal direction as a prerequisite for the vertical direction measurement, and the need to measure the horizontal direction together with the vertical direction measurement, which has a great practical effect.

The plumbmeter of this invention is easy to install at the extension part of the pendulum rod 2a.
Pointers 6, 6' are fixed to the front and rear of the pinion 5 that meshes with the pinion 5 or the gear that meshes with the pinion 5, respectively,
A scale plate 10, 10' corresponding to each pointer 6, 6' is arranged between the pinion 5 and each pointer 6, 6', and a vertical vial 7, 7' is connected to the main body 1 or a box-shaped scale. It is preferable that the needles 6, 6' of 8 are fixedly installed on the display side. This makes it possible to perform measurements in the vertical direction from both the front and back sides of the main body 1, making it possible to easily measure the vertical direction at any location regardless of the positional relationship between the surface to be measured and the person being measured. Because it becomes something.

Next, one embodiment of the present invention will be described based on the drawings.

The toothed portion 3a of the rack 3 is in the shape of an arc whose radius of curvature is the length from the shaft support of the pendulum rod 2a to the toothed portion 3a.

Reference numerals 11 and 11 denote rubber stoppers for suppressing excessive swinging of the pendulum 2.

12 is an elastic receiver for fixing the pendulum 2; 13 is an elastic receiver for fixing the pendulum 2;
This is a cam for fixing the pendulum 2, and with these two,
It constitutes a stopper 4. 14 is the cam 13
This is a knob for rotation.

Numerals 15 and 15' are fine adjustment knobs for finely adjusting the scale plates 10 and 10'.

16, 16' are see-through windows.

In this embodiment, the pointers 6, 6' are fixed directly to the pinion 5 shaft, and no separate gear meshing with the pinion 5 is used.

[Effect of the invention] When trying to set a certain surface vertically using the plumbmeter of the invention, the pendulum is fixed with a stopper and the vertical direction is first detected using the vertical vial, and then more precisely detected. By removing the stopper and releasing the fixation of the pendulum, the initial setting of the pendulum can always be set close to vertical, compared to the conventional method that relied on the intuition of the measurer. can be prevented. in this case,
The vertical vial is fixed to the pointer display side of the main body or box-shaped body, making measurement efficient.

[Brief explanation of drawings]

The drawings all show one embodiment of the plumb meter of the present invention, in which Fig. 1 is a partially fragmented front view, Fig. 2 is a right side view, Fig. 3 is a rear view, and Fig. 4 is a partially fragmented front view. , is a sectional view taken along line AA in FIG. 1. In the drawing, 1 is the main body, 2 is the pendulum, 2a is the pendulum rod,
3 is easy, 4 is stopper, 5 is pinion,
6, 6' are pointers, 7, 7' are vertical vials, 7a,
7a' is a bubble, 8 is a box-shaped body, 9 is a horizontal bubble tube,
9a is a bubble.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A pendulum 2, which has a shaft support 2a extended in the main body 1 to form a rack 3 having teeth at its tip, is supported so that it can be fixed by a stopper 4 when not in use. , in which a pointer 6 is fixed to a pinion 5 meshing with the rack 3 or a gear meshing with the pinion 5, and the swing of the pendulum 2 due to the inclination of the main body 1 is magnified by the pointer 6 to measure the vertical direction. The bubble tube 7 is placed in the main body 1 so that the moving direction of the bubble 7a matches the vibration direction of the pendulum 2.
Alternatively, a vertical meter characterized in that the main body 1 is fixedly attached to the pointer 6 display side of a box-shaped body 8. 2 A horizontal vial 9 is attached to the main body 1 or the box-like body 8.
The vertical meter according to claim 1, characterized in that the bubbles 9a are fixedly installed so that the moving direction of the bubbles 9a coincides with the longitudinal direction of the box-shaped body 8. 3 Pointers 6, 6' are fixed to the front and rear of the pinion 5 that meshes with the rack 3 of the pendulum rod 2a extension part, or the gear that meshes with the pinion 5, respectively.
The scale plate 10, 10' corresponding to pinion 6'
and each pointer 6, 6', and a vertical bubble tube 7, 7' is fixed to the display side of each pointer 6, 6' of the main body 1 or box-shaped body 8. A plumbmeter as set forth in claim 1 of the utility model registration claim.