JP2001255150A - Plumb bob - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plumb bob which can be loaded and unloaded simply, without having to perform climbing and descending operation on a stepladder. SOLUTION: In the plumb bob 1, a weight 23 is installed at the tip of a string 22 which is hung from a body 2, and the weight is hung down so as to investigate perpendicularity. The plumb bob 1 is provided with a sandwiching and holding piece 3, which is installed so as to be rockable with reference to the body 2. The plumb bob 1 is provided with a grip part 4, which is installed to extend from the body 2. Due to its own weight of the body 2, a pillar 5 is sandwiched and held between the body 2 and the sandwiching and holding piece 3. The body 2 is positioned and fixed. The grip part 4 is lifted, and the own weight of the body 2 is released. The sandwiching and holding operation of the pillar 5 between the body 2 and the sandwiching and holding piece 3 is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plumb bob used for confirming the installation of a pillar or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, there has been known a down swing d in which a weight c is provided at a tip of a thread b suspended from a main body a.

[0003] In this down swing d, a main body a is temporarily fixed to a pillar g by hitting a nail f with a hammer e.

[0004]

However, since the main body a of the above-mentioned conventional plunger d is used by being mounted at a high position of the column g, each time the main body a is attached or detached, The disadvantage is that the pillar g must be moved up and down using the stepladder. In particular, when confirming the installation of the pillar g, two measurements in the X and Y directions are required for one pillar g. This has to be done, which is troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a plunger which can be easily attached and detached without performing a stepladder up / down operation.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a down-swing of the present invention is provided in which a weight is provided at the tip of a thread suspended from a main body, and the weight is hung down to check the verticality. And a gripping piece provided to be swingable with respect to the main body, and a handle portion extending from the main body, wherein a pillar is sandwiched between the main body and the holding piece by the weight of the main body. Are positioned and fixed, and when the grip portion is lifted to release the weight of the main body, the holding of the column between the main body and the holding piece is released.

[0007] The handle is held by hand, and the main body is positioned at a desired position on the pillar, and the pillar is interposed between the main body and the holding piece at that position. In this state, when the hand of the handle that lifts the main body is released, the pillar is sandwiched between the main body and the holding piece by the weight of the main body, and the main body is positioned and fixed to the pillar. In addition, when the main body is slightly lifted by holding the handle portion by hand, the weight of the main body applied to the pillar is released, and the holding of the pillar between the main body and the holding piece is released.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 schematically shows the overall structure of a down swing 1 according to the present invention, and FIG.

That is, the plunger 1 is composed of a main body 2 and
A holding piece 3 provided to be swingable with respect to the main body 2;
A handle 4 extending from the main body 2.

The main body 2 is formed in a box shape, and one surface of the main body 2 is a contact surface 21 that is in contact with the column 5. The main body 2 is configured such that the thread 22 can be taken in and out from the lower surface in a state where the contact surface 21 is in contact with the column 5. The length of the yarn 22 can be adjusted by a winding mechanism (not shown) of the yarn 22 configured inside the main body 2. A weight 23 is provided at the tip of the thread 22. Further, on one side surface of the main body 2, a holding piece 3 that supports the main body 2 so as to swing is provided.

The holding piece 3 includes a swing portion 31 and a holding portion 32.
And bent into a substantially L-shape.

The swinging portion 31 of the holding piece 3 is fixed to the side surface of the main body 2 with a screw 24 at a position slightly away from the tip portion 33 toward the holding portion 32. In this state, the holding portion 32 and the contact surface 21 of the main body 2 face each other. Further, the tip 3 of the swinging portion 31
Reference numeral 3 is adapted to be fitted into a slit 26 of a slit member 25 fixed to a side surface of the main body 2. As a result, the swinging range of the distal end portion 33 of the holding piece 3 is limited by the slit 26, and the holding portion 32 is slightly moved upward from the substantially horizontal state facing the contact surface 21 of the main body 2. It is made possible to swing.

The distance between the holding portion 32 of the holding piece 3 and the contact surface 21 of the main body 2 is set to be slightly larger than the width of the column 5. Therefore, the holding portion 32 of the holding piece 3
In a substantially horizontal state in which the column 5 faces the contact surface 21 of the main body 2, the column 5 can be easily fitted therebetween. Further, the holding portion 32 of the holding piece 3 is moved from the above substantially horizontal state.
In the state in which the rocking member is swung upward, the holding portion 32 and the contact surface 21
Is narrowed, and the column 5 is clamped between the clamping portion 32 and the contact surface 21. As a result, the main body 2 and the clamping piece 3 are positioned and fixed to the column 5.

The holding portion 32 of the holding piece 3 is provided with an elastic body 34 as a non-slip surface on a surface facing the contact surface 21, and the column 5 is held between the holding member 32 and the contact surface 21. Even if there is, it is made not to shift.

The handle 4 has an adjuster 4 whose length can be adjusted.
1 is provided, and one end is fixed to the main body 2.

The plumb bob 1 constructed in this way is:
As shown in FIG. 2 (a), the main body 2 is lifted up to a predetermined height of the column 5 by holding the handle portion 4, and is positioned between the contact surface 21 of the main body 2 and the holding portion 32 of the holding piece 3. The pillar 5 is interposed.

Then, with the holding portion 32 of the holding piece 3 in contact with the column 5, the hand of the handle portion 4 that lifted the main body 2 is released. Then, as shown in FIG.
The holding piece 3 swings upward from the horizontal state by itself falling by its own weight. As a result, the distance between the contact surface 21 of the main body 2 and the holding portion 32 of the holding piece 3 is reduced,
The plunger 1 is positioned and fixed to the column 5 with the contact surface 21 of the main body 2 in contact with the column 5.

When removing the plunger 1 from the column 5, the user lifts the main body 2 with the handle 4. Then, as shown in FIG. 2A, the holding portion 32 of the holding piece 3 and the body 2
Of the contact surface 21 is widened and can be easily removed from the column 5.

As described above, the work of attaching the plunger 1 is performed by simply holding the handle portion 4 to the desired height of the pillar 5.
Can be performed simply by lifting and releasing the hand, and the detaching operation can be performed only by slightly lifting the main body 2 while holding the handle portion 4. It is possible to easily perform the work of attaching and detaching the plunger 1 from the level position.

The plumb bob 1 can be used irrespective of the material of the column 5 whether it is wooden or steel, but the wooden column 5 has to be temporarily fixed with nails or the like. Can be used particularly effectively.

[0022]

As described above, according to the present invention, it is possible to position and fix the main body at a desired position while holding the handle portion by hand, and then release the hand. The body can be removed from the pillar by lifting the body a little.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a plumb bob according to the present invention is attached to a pillar.

FIGS. 2 (a) and (b) are side views for explaining a use state of the down swing according to the present invention.

FIG. 3 is a perspective view illustrating a use state of a conventional swing down.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plumb 2 Body 22 Thread 23 Weight 3 Nipping piece 4 Handle part 5 Pillar

Claims (1)

[Claims] 1. A down swing which is provided with a weight at the tip of a thread suspended from a main body and which is hung down to check the vertical direction, wherein a holding piece provided to be swingable with respect to the main body. A handle extending from the main body, the main body is positioned between the main body and the holding piece by the weight of the main body, and the main body is positioned and fixed. A down swing, wherein the holding of the pillar between the main body and the holding piece is released.