JPH1086008A - Boring drill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform drilling work with an almost standing position and prevent any load from applying on the waist and the arms by mounting a switch, which controls rotation, stop, and speed of a motor, on a handle of a support, rod extending upward from the top of the motor. SOLUTION: The bottom end of a hollow pipe support, rod 28 is threadly attached to the top of a motor 24 operated by pneumatic pressure for rotating a blade 22 of a boring drill and the bottom end of a T-shaped socket 30 is detachably and threadly attached to the top end of the support rod 28. A hollow pipe handle part 34 for pumping air is detachably, rotatably, and threadly attached to the end of the T-shaped socket 30 and a switch 36 for controlling the quantity of air flowing through the hollow pipe is provided in this handle part 34. This switch 36 controls the rotation, stop, and speed of the motor 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drill for making holes.
For example, trailers, trucks, containers,
The present invention relates to a drill for drilling when a large number of drilling operations are required, such as when a floor plate of a transport box is fixed to a metal frame.

[0002]

2. Description of the Related Art Van type vehicles, wing vehicles, flat floor type trays
Most of the floor of the transport box, such as a rack, a container, etc., usually uses a tapping screw to fix a wood plate such as apiton to a metal frame or joist. The floor is loaded with the entire weight of the load, and is subjected to sudden frictional forces generated between the floor and the lower surface of the load and intense vertical vibration when traveling on slopes and sudden braking. It is necessary to considerably increase the number of places to be fixed by the tapping screw. For example, as shown in FIG. 5, the dimensions of the inner width of the ordinary flat-bed type trailer (about 2,400 m / m) and the dimensions of the inner length ( In the case of about 12,000 m / m), it was necessary to fix at about 1,000 places.

[0003] Prior to fixing with the above tapping screw, holes are made in the floor surface and a metal frame portion. Conventionally, as shown in FIG. 3, a pistol type air drill is used to make a floor. I was drilling holes on the surface.

[0004]

When the pistol-type air drill is used, the posture becomes inevitably a mid-lumbar posture, causing low back pain. In particular, a considerable load is applied to the arm and the waist. And it was difficult to make the drill blade vertical, and the operator was quite tired.

[0005] An object of the present invention is to allow a worker to perform a drilling operation in an almost standing posture without having to take a mid-low back posture, so that no burden is placed on the waist and arms and the drill can be easily operated. An object of the present invention is to provide a drill for drilling, which can make the blade vertical and press the drill blade with the upper body, so that sufficient force can be applied and the fatigue of the operator is not so large.

[0006]

In order to achieve the above object, a drilling drill blade extending downward and a pneumatically operated motor for rotating the drilling blade are provided.
A support rod extending upward from the upper part of the motor, a handle provided on the upper part of the support rod, and a switch mounted on the handle for controlling rotation, stop and speed of the motor; A drill for drilling, characterized by comprising:

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a drill for drilling a floor plate according to the present invention, and FIG. 2 shows the drill for drilling of FIG. 1 according to the present invention. FIG. 3 shows a state in which a hole is drilled in the floor using a conventional pistol-type air drill, and FIG. 4 shows a detailed sectional view of a switch and a take-out part. FIG. 5 is an exploded perspective view showing a case where a floor plate is fixed to a carrier frame of an ordinary flat-bed type trailer.

As shown in FIG. 5 as an example using the drill according to the present invention, as shown in FIG.
The carrier frame of No. 0 has a pair of main vertical beams 12, 12 of steel or aluminum having an I-shaped cross section arranged in parallel, and a plurality of horizontal beams 14, 14,. . Are arranged in a ladder shape, and a plurality of floor boards 16, 16. . Laying and tapping 18,1
8. . Holes for holes 20, 20,. . Are drilled in the overlapping portion of the floor plate 16 and the cross beam 14, and the tappings 18, 18. . , The dimension of the inner width of this embodiment (about 2,40)
0 m / m) and the inner dimension (about 12,000 m / m), it is necessary to fix at about 1,000 places.

In one embodiment according to the invention of FIG.
A drilling drill blade 22 extending downward, and a pneumatically operated motor for rotating the drill blade 22
24 (a detailed description is omitted because it is a conventionally known configuration), which is an electric motor or a hydraulic motor.
This is because the weight is smaller and the power is higher than that of the tar.

A support rod 2 of a hollow pipe for removably supplying air from an upper portion of the motor 24 through a nut 26.
8, the lower end of a T-shaped socket 30 is detachably screwed to the upper end of the support rod 28, and the T-shaped socket 3
One end of one of the left and right handle portions 32 is detachably screwed to one end of the handle portion 0, and the surface of the handle portion 32 is engraved in an uneven shape so that it can be easily gripped by hand. Since 32 is detachable, it can be disassembled into parts, and a support rod 28 having a length L matching the height of the worker can be selected.

At the other end of the T-shaped socket 30, a handle portion 34 of a hollow pipe for sending air is detachably and rotatably screwed, and the handle portion 34 is provided with the air flowing through the hollow pipe. A switch 36 for controlling the amount is provided, and the structure of the switch 36 is a valve spring 40 mounted inside a switch body 38 as shown in FIG.
A valve body 42 biased by the valve spring 40, and a valve shaft 4 having one end fixed to the valve body 42 and the other end protruding outside.
4 and one end of a lever 46 for pressing the protruding end of the valve shaft 44 are pivotably connected to the switch body 38.

At one end of the handle portion 34, a screw portion 48 is detachably and rotatably screwed to the end portion of the T-shaped socket 30. At the other end, a pneumatic pressure hose is provided. The air supplied from the air supply hose 50 is configured to be detachably screwed to the base 52 of the connector 50, so that the air supplied from the air supply hose 50 passes through the handle portion 34, the T-shaped socket 30, and the inner hollow portion of the support rod 28. The motor 24 is operated by flowing, and the rotation, stop and speed of the motor 24 are controlled by controlling the amount of air flowing through the hollow pipe by operating the lever 46.

The present invention is not limited to the above embodiment, and various design changes can be made without departing from the spirit of the present invention, and include van type vehicles, wing vehicles, and flat floor type trains.
Needless to say, it can be used for other than the work of mounting the floor of a transport box, such as a rack, a container, and the like.

[0014]

By using the drill for drilling according to the present invention as described above, the worker can perform drilling work on the floor surface almost in a standing posture without being in the middle waist posture. It is easy to put the drill blade vertically without any burden and presses the drill blade with the upper body of the body, so it is possible to apply enough force, and the fatigue of the operator is not so large,
Furthermore, since this drill for drilling can be disassembled into individual parts, it is possible to select a support rod having a length L that matches the height of the worker, and since the handle can be rotated, the amount of air can be controlled. The position of the switch can be changed for the convenience of the operator.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a drill for drilling according to the present invention.

2 shows the use of the drill for drilling of FIG. 1 according to the invention.

FIG. 3 shows a state in which a hole is drilled in a floor using a conventional pistol-type air drill.

FIG. 4 shows a detailed sectional view of the take-off part.

FIG. 5 is an exploded perspective view of fixing a floor plate to a carrier frame of a flat-bed type trailer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Flat floor type trailer 12 Main vertical beam 14 Cross beam 16 Floor plate 18 Tapping 20 hole 22 Drill blade 24 Motor 26 Nut 28 Support rod 30 T-type socket 32 Handle part 34 Handle part 36 Switch 38 Switch body 40 Valve spring 42 valve body 44 valve shaft 46 lever 48 screw part 50 air pressure hose

Claims (1)

[Claims] 1. A drilling drill blade extending downward, a motor operated by air pressure for rotating the drilling blade, and a support rod extending upward from an upper portion of the motor. A drill for drilling, comprising: a handle provided on an upper portion of the support rod; and a switch mounted on the handle for controlling rotation, stop, and speed of the motor.