JPH0435767Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a display device in a staff or the like used to mark height differences on roads or structures.

[Conventional technology]

Generally, surveying work requires an instructor to indicate the vertical position based on the surveying instrument, and a marker to adjust the vertical position of the staff and mark the reference point.

When marking the reference points determined based on the instructions, the marker should be placed in an awkward position and marked with a pencil, ink stick, etc., or a professional marking specialist should be placed separately from the marker. method was adopted.

[Problem that the invention attempts to solve]

However, in both methods, marking is done manually, and depending on the location and circumstances of the marking, an error of about 10 to 30 mm can easily occur, and if construction is continued with this error, repairs will be required later. We were forced to incur a huge loss in terms of expenses, including personnel costs, and time.

Therefore, the present invention aims to provide a display device equipped with a marking function.

[Means for solving problems]

The present invention consists of a base body that comes into contact with required points, a U-shaped swinging body whose open ends are pivotally supported on both outer surfaces of the base body, and which is swing-like in the front and back directions, and a U-shaped rocking body that is attached to the base body. an elastic body that maintains both sides of the rocking body along the base body; and a locking body that is provided between the base body and the rocking body and maintains the rocking body in a moved state against the elastic body. , a spring that presses the locking body in the direction of the oscillating body, and a spring provided on the side of the base body,
It consists of an operating part that presses the locking body against a spring to release the engagement with the rocking body, and a display body that is attached to the bottom piece of the rocking body and marks a reference point at a predetermined location.

[Effect]

The base is used by being attached to the lower end of surveying equipment such as a staff, and during surveying work, the front or rear surface of the base is placed in contact with the required area to be marked, and the instructor By adjusting the position of the base body up and down according to instructions, and by operating the operating section, a reference point is marked at a desired location on the display of the oscillating body.

At this time, when marking the front side of the base body, the swinging body is moved to the rear side, and the locking body pressed by the spring is engaged and set.

Then, the operating part is pressed against the pressing force of the spring to release the set state of the locking body and the rocking body, and the rocking body is restored by the elastic force of the elastic body.
It is marked with an indicator on the front side of the base.

Next, when marking the rear side of the base,
The rocking body is moved forward and set, and subsequent operations and operations are the same as described above.

〔Example〕

Hereinafter, an embodiment of the present invention will be described based on the drawings. Reference numeral 1 denotes a base body, and a suitable number of measuring scales 2, 2' extending upward are connected to the base body 1 at required locations. 1 and are placed upright in contact with each other. Reference numeral 3 denotes a U-shaped swinging body whose open ends are pivotally supported on both sides of the lower part of the base 1 so that it can swing freely in the front and back direction like a swing. It is pivotally supported by push-button type operation parts 5, 5 which are attached to both ends of a rod-like body 4 that passes through the body in the left-right direction so as to be movable forward and backward.

6 and 6' are U-shaped elastic bodies whose bent parts are fixed to mounting parts 7 and 7 formed at the lower side of both sides of the base body 1, and whose upper open ends are left free in the front and back, respectively. Projections 8, 8 provided on the inner sides of both side pieces 3, 3' of the movable body 3 are held between the open ends to maintain the side pieces 3', 3' of the oscillating body 3 in a state along the base body 1. ing.

Reference numeral 9 denotes a spring wound around the rod-shaped body 4, and between the both ends of the spring and the operating parts 5, 5, movable bodies 10, 10, which advance and retreat along the rod-shaped body 4, penetrate through both sides of the base body 1. The movable bodies 10, 10 are connected to the operating units 5, 5. Reference numerals 11 and 11 denote locking bodies protruding from the outer surfaces of the movable bodies 10, 10, which allow the rocking body 3 to swing forward or backward against the elastic force of the elastic bodies 6, 6, thereby locking the rocking body 3. The spring 9 is elastically engaged with the joint portion 12 to maintain the swinging body 3 in a moved state. This maintenance by the locking bodies 11, 11 is achieved by pressing the operating parts 5, 5 against the spring 9, and releasing the engagement state of the locking bodies 11, 11 with the engaging part 12. The operating parts 5, 5 are restored to the state along the base body 1 by the elastic force of the elastic bodies 6, 6, and the operating parts 5, 5 are attached to the rod-shaped body 4 with fasteners 13, 13. 14, 14 are moving objects 10, 10
This is a stopper that prevents unnecessary rotation of the base body 1, and extends through both sides of the base body 1. Reference numeral 15 denotes an indicator attached to the bottom piece 3'' of the rocking body 3, which marks a reference point at the same or approximately the same height as the bottom surface of the base body 1 when the rocking body 3 is restored. It is a reinforced frame.

In the embodiment shown in the drawings, the base body 1 is shown as the lowest stage of the stuff, but this merely shows one embodiment of the present invention. Although the rod-shaped body 4 with a circular cross section is shown passing through the base body 1 and the spring 9 is wound inside the base body 1, the springs 9 may be provided separately on the left and right sides, or on both outsides of the base body 1. can be,
The movable bodies 10, 10 may also be of a type that does not penetrate the base body 1, and rotation prevention may be considered by making the rod-shaped body 4 or the movable bodies 10, 10 square in cross section.

Further, the shapes and mounting positions of the elastic bodies 6, 6 are not limited to those shown in the drawings, and it is conceivable that the display body 15 may be simply stamped or marked by impregnating porous rubber with a pigment or the like. Alternatively, the operating portion 5 and the locking body 11 may be provided only on one side of the base 1, and the other side may simply support the swinging body 3 in a swingable manner.

[Effect of idea]

The present invention is constructed as described above, and the reference point is marked by the indicator of the oscillating body, which is adjusted up and down according to the instructions of the instructor, and is restored by operating the operating section at the appropriate position. The error is extremely small compared to marking with a pencil, etc., allowing for accurate survey work and subsequent construction work, which is not only advantageous in terms of cost and time. It can also be moved and set, allowing marking work to be performed without distinguishing between the front and rear of the base. Furthermore, since the base body is used by being attached to the lower end of a surveying instrument such as a staff, it has a wide range of applications and can be used for various surveying instruments.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a front view of the usage state, Fig. 2 is a front view of the main parts, Fig. 3 is a side view, Fig. 4 is a vertical front view, and Fig. 5 is a front view of the main part. A-
A cross-sectional view, Figure 6 is a side view of the set state, Figure 7 is a side view of the set state.
The figure is also a front view. 1 is the base, 3 is the rocker, 3', 3' are the pieces on both sides,
3'' is a bottom piece, 5 is an operating section, 6 is an elastic body, 9 is a spring, 11 is a locking body, and 15 is a display body.

Claims (1)

[Scope of utility model registration request] A base body 1 that abuts at a required location, a U-shaped rocking body 3 whose open ends are pivotally supported on both outer surfaces of the base body 1, and can swing freely in the front and rear direction like a swing, and is attached to the base body 1. an elastic body 6 for maintaining both side pieces 3', 3' of the rocking body 3 along the base body 1;
and a locking body 11 provided between the rocking body 3 and the rocking body 3 to maintain the rocking body 3 in a moved state against the elastic body 6.
and a spring 9 that presses the locking body 11 in the direction of the rocking body 3, and a spring 9 that is provided on the side surface of the base body 1 and presses the locking body 11 against the spring 9 to maintain the state of engagement with the rocking body 3. A display device for a staff, etc., comprising an operating section 5 for release, and a display body 15 attached to the bottom piece 3'' of the rocking body 3 and marking a reference point at a predetermined location.