JP3015443U - Leveling staff - Google Patents

Abstract

(57) [Summary] [Purpose] Make it easier for work mistakes to occur when leveling with transit. [Structure] The rod 2 has a rectangular cross section, and is composed of two plates 3 facing each other and two thin transparent plastic plates 4, and the inside is hollow. The length of the rod is about 1 meter. A piece 5 is loosely fitted in the hollow of the rod. A slit 6 is formed vertically on one plate 3, and the tip of the pin 7 driven into the piece 5 goes out through the slit 6. A male screw is cut at the tip of the pin 7, and a wing nut 8 is screwed into the male screw. A horizontal line 9 is inserted in the piece 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a staff for marking a constant level position on a wall surface using a transit.

[0002]

[Prior art]

 When a concrete frame is created during building construction, draw a reference line on the floor and walls that will serve as a reference for interior construction. When drawing horizontal ink (horizontal reference line) on the wall, level marks are added to the wall at appropriate intervals using a transit and a staff, and horizontal ink is drawn to connect these marks.

Conventionally, only such a bar is used as such a staff, and since this stick is used many times, many lines of marks remain, and a newly added line of marks. It is easy to make a mistake by not knowing which was. There is also the problem that the marking lines on the staff are hard to see from the transit because the construction site is not well lit.

[0004]

[Problems to be solved by the device]

 The purpose of this invention is to obtain a leveling staff that is easy to make mistakes and that is easy to see even in the dark.

[0005]

[Means for Solving the Problems]

 The staff of this invention supports a piece of a transit target slidably along a rod body so that it can be fixed at an arbitrary position. A rod is formed hollow, a piece is loosely fitted therein, a slit through which a pin extending from the piece passes is formed along the rod, and a lock nut is screwed onto the tip of the pin. May be.

When an opening is provided at the upper end and a penlight is inserted from here to illuminate the frame, the transit can be seen well even in a dark place.

[0007]

【Example】

 As shown in FIGS. 1 and 2, a rod 2 that is the main body of the staff 1 has a rectangular cross section and is composed of two plates 3 facing each other and two thin transparent plastic plates 4. Is hollow. The length of the rod is about 1 meter. A piece 5 is loosely fitted in the hollow of the rod. A slit 6 is formed vertically on one plate 3, and the tip of the pin 7 driven into the piece 5 goes out through the slit 6. A male screw is cut at the tip of the pin 7, and a wing nut 8 is screwed into the male screw. Put a horizontal line 9 as a mark on the piece 5. The upper end of the rod 2 has an opening 10.

When leveling a wall surface using this staff, as shown in FIG. 3, the transit 20 is placed on the floor 21 so that the telescope can be oriented in any direction while keeping its axis horizontal. To Reference numeral 22 is a reference level mark drawn on the wall surface (usually at a height of 1 meter above the floor).

One person presses the staff 1 vertically and presses it against the wall 23 so that the lower end is aligned with the level mark 22. Another person looks at the transit 20 at this staff (A state). The person supporting the staff slides the piece 5 up and down at the signal of the person who looks into the transit, and moves the piece (correctly, the horizontal line 9 drawn on the piece) to the line of sight of the transit 20 (the axis of the telescope). ) According to the height, tighten the thumbscrew 8 to fix the bridge 5.

Next, the staff 1 is moved along the wall, and the transit is also turned in response to this (state B). Now, while receiving the signal from Transit, the staff of the staff moves the staff up and down so that the piece 5 is at the same level as the sight line of the transit. In this state, the level mark 24 is attached to the lower end position of the staff 1. It is not necessary to explain that the level mark 24 is at the same level as the reference level mark 22. In this way, the level marks 24 are attached to the wall one after another, and ink thread is stretched between them to attach the horizontal ink 25 to the wall.

When the scene is dark, the penlight 12 is inserted into the rod body 2 through the opening 10 as shown in FIG. 1, the clip 13 is hooked on the upper edge of the plate 4, and the piece 5 is placed from above. Shine brightly. Instead of using a clip, the penlight may be dropped into the rod and placed directly on the piece 5. When illuminating with a penlight, you can see the upper end surface of the piece 5 better than the horizontal line 9, so it is better to aim it with a transit.

Although not shown, it is convenient to provide a length scale on one surface of the rod 2 so that it can be used as a ruler.

[0013]

[Effect of device]

 According to the staff of claim 1 of the present invention, the target piece of the transit is slidably supported along the rod body and can be fixed at any position. The piece is slid and fixed. By doing so, the level difference from the reference point to the line of sight of the transit can be easily copied to this staff, and if this is used, leveling work using the transit can be performed efficiently and work errors can be reduced. .

According to a second aspect of the staff, a rod is formed in a hollow shape, a piece is loosely fitted therein, and a slit through which a pin extending from the piece passes is formed along the rod, and a tip of the pin is formed. It has a simple structure and high reliability.

According to a third aspect of the present invention, an opening is provided at the upper end, and a penlight is inserted into the rod body from here to illuminate the piece. Therefore, the piece can be easily seen from the transit even in a dark place, and work can be performed. Go fast.

[Brief description of drawings]

FIG. 1 is a perspective view of a staff, which is divided into two parts due to space limitations.

FIG. 2 is a cross-sectional view of a staff, in which some of the pieces are cut away for easy understanding.

FIG. 3 is a perspective view showing a usage state of the staff.

[Explanation of symbols]

 1 Railroad 2 Rod 5 Piece 6 Slit 7 Pin 8 Thumbscrew 10 Opening 12 Penlight 20 Transit

[Procedure amendment]

[Submission date] February 27, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

Claims (3)

[Scope of utility model registration request] 1. A leveling staff for slidably supporting a target piece (5) of a transit (20) along a rod (2) and fixing it at an arbitrary position. 2. The rod is formed hollow, the piece is loosely fitted therein, and a slit (6) through which a pin (7) extending from the piece passes is formed along the rod. A leveling staff with a set screw (8) screwed onto the tip of the pin. 3. The leveling staff according to claim 1, wherein an opening (10) is provided at an upper end, and a penlight (12) is inserted into the rod body from there to illuminate the bridge. .