JP6206823B1 - Ring measure that does not fall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ring measure which stops at a position even when a hand is released and does not fall. A ring measure in which a leaf spring is attached inside a hollow portion (7) of a slide arm portion (3) of a ring measure, between the fixed arm portion (2) and the slide arm portion (3). Holding the standing tree, sliding the sliding arm (3) and pinching the standing tree strongly, the sliding arm (3) is pressed, and the leaf spring and the scale (1) are brought into close contact with each other with a strong force. Part (3) does not slide, and the ring measure does not fall with the standing tree in between even if the hand is released. [Selection] Figure 2

Description

  The present invention relates to a tool and a ring measure used when measuring the diameter of a standing tree or a cylindrical object.

The prior art, for wooden wheel scale, or coatings to protect the scale portion from abrasion, there is subjected to printing for clarity Ri scale.
Some commercially available ring scales have rollers attached to the inside of the sliding arm hollow portion (7) in order to smooth the movement of the sliding arm (3).

  Utility model registration No. 3105215

The method of standing tree survey, such as grasping the volume and growth of standing trees, varies depending on the purpose of the survey, but in general, the diameter of the chest height of the standing tree is measured and recorded with a ring measure, and the tree height is measured and recorded. and to assess the recording, as a sign of being a research tree, or install a number ticket, the headband with tape or paint.

Such roles and general personnel composition of standing trees survey work, taker 1 person, measuring engagement one person by wheel scale, (hereinafter referred to as marking engagement) engaged to a headband in number ticket attached, tape or paint 1 Two people are required, and it takes a lot of labor to survey large forests.

As for the work contents of each share, the record clerk records the diameter value read by the measurement clerk in the field book, observes the height of the tree, and observes defects such as bending of the trunk, branches, decay, etc. as wood Assess quality and record.
The measuring staff puts the chest height of a tree up with a ring measure and reads out the scale on that scale.
The signer attaches a number tag and displays a headband with tape or paint to indicate that it is a survey tree.

  The actual situation of the standing tree survey work is that the recording staff always needs to move to a position where the entire standing tree can be seen well in order to observe the standing tree, which requires a lot of time.

After reading the measurement value of the ring measure, the measurement staff has the ring measure and the hand is blocked, so it is not easy to handle the subsequent work while having enough time.
This means that when you place a ruler on the ground, it will be repeatedly picked up and picked up each time. Also, on sloping ground, the placed ruler often slides down, which is often a physical burden and inefficiency. .

  The signer attaches number tags, winds tapes, or performs headbands with paint.

  If the measurement work with sufficient time on hand can be assigned to the subsequent work within the assignment of the standing tree investigation work, the number of persons required for the standing tree investigation can be reduced.

A leaf spring (4) is attached to the inside of the hollow portion (7) of the sliding arm portion (3) of the ring measure, and a standing tree is provided between the fixed arm portion (2) and the sliding arm portion for measuring the diameter. If you put a little force and pinch the tree, the point a of the sliding arm will be pushed outward by the reaction of the pinched force. Works in the direction of pushing up.

The leaf spring is strongly pressed against the scale part (1) and warps until it comes into close contact with the parallel adjustment bolt (5). At this time, the sliding arm part is parallel to the fixed arm part, so the scale scale is the diameter value of the standing tree. It becomes.
At the same time, the sliding arm portion does not slide because the scale portion, the leaf spring, and the parallel adjustment bolt are crimped.
Furthermore, since the repulsive force of the leaf spring maintains the pressure-bonded state between the leaf spring and the scale portion, the ring scale does not fall with the standing tree sandwiched even when the hand is released.

After measuring the diameter of the standing tree, the measuring staff can release the hand while holding the standing tree, and share the subsequent work such as number tag attachment, which can reduce the number of standing tree survey work. Become.

  The perspective view of the scale before measurement and the enlarged partial cross section The sliding arm is slightly tilted inward due to the repulsion of the leaf spring.   A perspective view and an enlarged partial cross-sectional view of the wheel scale at the time of measurement The leaf spring is pressed against the scale part and pressed against the parallel adjustment bolt.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

In the state before the measurement, the sliding arm part of the ring scale is inclined slightly inward with respect to the fixed arm part due to the repulsive force of the leaf spring (FIG. 1). Therefore, when measuring the diameter of the standing tree, the sliding arm Hold the tree with a little force until the part is parallel to the fixed arm.

At this time, the leaf spring and the parallel adjustment bolt are in close contact with each other, and the fixed arm portion and the sliding arm portion are parallel to each other (FIG. 2), and the measurement staff reads the scale scale at that time as the diameter value. Look up.

The ring measure will not fall even if you release your hand while holding the tree, so the measurer will perform the work such as attaching a number tag to the tree and then pull the sliding arm to the right and remove it from the tree. Move to the next survey tree.

Since the measuring staff can release the hand while holding the standing tree, the subsequent work such as attaching a number tag to the standing tree can be shared, and the number of workers required for the work can be reduced.

1 Scale section
2 fixed arms
3 sliding arms
4 Leaf spring
5 Parallel adjustment bolt
6 Tightening nut
7 Hollow part

Claims (1)

A ring measure in which a leaf spring (4) is mounted inside the hollow part (7) of the sliding arm part (3), and a diameter is measured with a standing tree sandwiched between the fixed arm part (2) and the sliding arm part. After that, even if the hand is released by the repulsive force of the leaf spring (4) , it does not fall while holding the standing tree.

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