JPS6334785Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fastening tool driving tool that allows fastening tools to be sequentially supplied to the tip of a gun barrel to efficiently drive the gun.

For example, when manufacturing a steel ingot by pouring molten steel into a mold, it is widely practiced to use the explosive gas pressure of gunpowder, fluid pressure, etc. as a driving force to fire a fixing tool to fix a heat insulating material to the inner surface of the mold. In this case, work efficiency becomes a problem when driving two or more fasteners into one mold with a single driving tool, or when driving fasteners almost continuously into multiple molds. . Conventionally, when using the explosive gas pressure of gunpowder, a large number of cartridges were mounted in one magazine, and this magazine was moved in one direction behind the gun barrel each time the fastener was fired. A driving tool is provided that simplifies operation and improves work efficiency by equipping a single magazine with a book fastener and moving the magazine in one direction each time the fastener is fired at the tip of the gun barrel. has been done.

When using a magazine with a fixing device, a dedicated magazine must be prepared and a guide and feeding mechanism for the magazine is required, but a feeding mechanism is necessary to move the magazine placed at the tip of the barrel. It is inevitable that the project will become complex and large-scale.

In this project, the guide for the fixing tool is provided vertically at the tip of the barrel,
By lowering the fastening tool along the guide by its own weight, a magazine and a complicated and large-scale feeding mechanism are unnecessary, and driving can be performed almost continuously with a simple structure.

An example of the present invention will be explained below with reference to the drawings.
A short cylindrical seat plate receiver 3 with an open front is formed at the tip of the gun barrel 2 protruding forward of the tool body 1, and a fixing member P is provided on the peripheral wall 3a and bottom wall 3b of the seat plate holder 3, as well as on the upper surface of the tip of the gun barrel 2. A groove-shaped opening 4 through which the seat plate W passes is provided in the axial direction of the gun barrel, and an arc-shaped opening 5 through which the seat plate W passes is provided in the circumferential direction of the peripheral wall at the bottom of the peripheral wall 3a in contact with the front surface of the bottom wall 3b. The guide 6, which is equipped in a line with the fasteners P to which the seat plate W is attached, has a plate-shaped front piece 8 having a groove space 7 projecting forward in the center and extending in the vertical direction, and a groove extending in the vertical direction in the center. It is constructed by sandwiching a plate-shaped rear piece 10 having an opening 9 and a plate-shaped spacing piece 11 having approximately the same thickness as the seat plate W at both left and right edges, overlapping them and fixing them to each other, Its lower end is the seat plate support 3
It is fitted in and fixed vertically. A flat gap 12 surrounded by the front piece 8, the rear piece 10, and the spacing piece 11 and having an open upper surface is used to fit the seat plate W almost without any gap, and its lower end overlaps with the arc-shaped opening 5. It is open toward the seat plate support 3.

At one side edge of the lower end of the guide 6, support stands 13, 14 fixed to the front piece 8 and the rear piece 10 are provided to protrude laterally.
Locking pieces 17 and 18 are attached to both ends of an arm 16 which is held between pins 1 and 4 and is rotatable by a support shaft 15.
These locking pieces 17 and 18 are inserted into guide holes 21 and 22 formed in the spacing piece 11 so that their tips alternately protrude into the gap 12. , the lever 23 is connected to the arm 16, and the lower locking piece 18 is connected to the gap 12.
A spring 24 acting in the direction of protrusion is stretched between the lever 23 and the lower end of the guide 6, and these constitute a feeding mechanism 25 for the fastener P.

The lower locking piece 18 is arranged near the upper end of the seat plate holder 3 on which the fixed tool P to be fired and the seat plate W are placed, and the upper and lower locking pieces 17 and 18 are spaced approximately equal to the diameter of the seat plate W. It is located in

In this embodiment, the fastener P
The seat plate W attached to the tip of the gun is fitted into the gap 12 on the surface perpendicular to the barrel axis, and is attached to the guide 6 in a vertical row overlapping each other.
The front and rear portions of the seat plate at the tip are positioned in the groove space 7 and the groove opening 9 and are arranged on a vertical plane including the barrel axis. The lowermost seat plate W ₁ (FIG. 4) is fitted with the lower locking piece 1
8 and stops above the seat plate support 3.
Next, when the lever 23 is pulled upward and the arm 16 is rotated clockwise from the state shown in Figures 1 and 4 against the force of the spring 24, the upper locking piece 17 protrudes into the gap 12 and contacts the second-lowest seat plate _W2 , while the lower locking piece 18 retreats from the gap 12, causing the lowest seat plate _W1 to drop toward the seat plate receiver 3 (Figure 5). The lowest fastener _P1 passes between the guide plates 26, 26 at the lower rear of the guide 6, passes through the groove-like opening 4 and fits into the bore 27 of the barrel 2, and the seat plate _W1 passes through the arc-shaped opening 5 and fits into the seat plate receiver 3, as shown by the two-dot chain line in Figure 2. When the fastener has been placed in the firing position in this manner, the lever 23 is released to return to the state shown in Figure 4, the next fastener which had been in contact with the upper engagement piece 17 is dropped so that its seat plate comes into contact with the lower engagement piece 18, and the seat plate receiver 3 is pressed against the target object, activating a firing mechanism (not shown) provided in the tool body 1 and driving the fastener into the target object.

Note that the firing mechanism provided in the tool body 1 may be any known mechanism such as one that uses explosive gas pressure of gunpowder or one that uses fluid pressure, and drives the fixing tool P via a piston fitted in the gun cavity 27. do. Also,
The feeding mechanism 25 is arranged behind the guide 6 and the locking piece 1
7 and 18 may be moved in and out of the gap 12 from the rear, and the lever 23 may be rotated by grasping it directly with the hand each time the gun is fired, or it may be operated manually from a distance by connecting a rope, chain, rod, etc. Rotate.

As described above, the present invention provides a vertical guide that is formed on a surface perpendicular to the axis of the gun barrel and has a gap into which the seat plate fits, a groove space through which the fastener passes, and a groove opening, and the seat plate at the tip of the gun barrel. Since the lower end of the guide is fixed by communicating the gap, the groove space, and the groove opening with the receiver, the guide can be attached with a seat plate by fitting the seat plate attached to the fixing device into the gap and equipping it in a vertical line. It also serves as a magazine for the fixing device, and the fixing device is lowered by its own weight.Therefore, not only is there no need to separately provide a dedicated magazine and its guide for the fixing device, but also a magazine and guide exclusively for the seat plate are no longer required. Moreover, there is no need for a large-scale feeding mechanism to move the magazine. Then, a fixing tool feeding mechanism is provided, which is constructed by attaching upper and lower locking pieces to both ends of a manually rotating arm, which act as stoppers for dropping the lowermost fixing tool of the guide to the firing position or waiting above it. Since the upper and lower locking pieces are moved in and out of the gap alternately, the feeding mechanism has a simple structure that allows the fasteners to fit into the tip of the gun barrel one by one and waits for the next fastener above. It is easy to operate and can be performed accurately.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a vertical sectional view, and Fig. 3 is taken along the line X-X of Fig. 1.
4 and 5 are front sectional views illustrating the operation of the feeding mechanism. 1... Tool body, 2... Gun barrel, 3... Seat plate holder, 4... Opening, 6... Guide, 8... Front piece,
10... Rear piece, 12... Gap, 15... Support shaft, 16... Arm, 17, 18... Locking piece, 23...
...Lever, 24...Spring, 25...Feeding mechanism.

Claims (1)

[Scope of utility model registration request] A cylindrical seat plate receiver 3 with an open front is provided at the tip of the gun barrel 2 that protrudes forward of the tool body 1, and an opening 4 is provided at the tip of the gun barrel 2 and on the upper surface of the seat plate receiver 3 to allow the fastener to pass through. are provided, a gap 12 arranged on a plane perpendicular to the axis of the gun barrel and into which the seat plate fits in a line, and a groove space 7 formed in front and rear of the gap 12 through which the fastener attached to the seat plate passes, and a groove. The guide 6 having the opening 9 is connected to the seat plate receiver 3.
They are arranged vertically with the gap 12, the groove space 7, and the groove opening 9 communicating with each other, and their lower ends are fixed, and further arranged vertically at both ends of arms 16 that can be manually rotated at intervals approximately equal to the diameter of the seat plate. The guide 6 is provided with a feeding mechanism 25 for a fastener, which has locking pieces 17 and 18 which are alternately moved in and out of the gap 12, and the lower locking piece 18 is disposed near the upper end of the seat plate receiver 3. Fastener driving tool.