JPS6210783B2 - - Google Patents

Description

Detailed Description of the Invention The present invention provides an embedding device, particularly an embedding device for driving pin members such as nails when fixing a feeder frame or plate material to an object such as a mold or concrete. Regarding equipment.

Conventionally, as an embedding device for driving a pin member, there has been one that uses the explosive power of gunpowder to drive the pin member into concrete or the like.

This type of embedding device uses gunpowder and is not easy to handle and is sometimes dangerous. In addition, since the gunpowder is handled, only a person with certain qualifications can handle the equipment, and if there is no qualified person at the work site, there is an inconvenience that the equipment cannot be used. Furthermore, in order to make the device structure able to withstand the explosive force of the gunpowder, it was necessary to strengthen the structure of the device to give it the required strength, and there was a limit to how lightweight the device could be.

A first object of the present invention is to eliminate the danger and inconvenience of conventional embedding devices by utilizing the pressure of high-pressure gas instead of the explosive power of gunpowder.

A second object of the present invention is to control the valve opening time so that the amount of high-pressure gas supplied at one time is the minimum necessary capacity, thereby making it possible to drive a large number of nails.

In order to achieve the first and second objects, the embedding device of the present invention includes: a mounting portion to which a small high-pressure gas cylinder can be connected; a valve mechanism for controlling the inflow of high-pressure gas sent from the mounting portion; A valve-opening mechanism that opens the valve mechanism in a normal state by an elastic mechanism; A valve-opening mechanism that instantaneously opens the valve mechanism by a striking force; A valve-opening mechanism that locks the valve mechanism in a normal state. a locking mechanism; a cylinder chamber in which a piston is slidably housed; an introduction mechanism for guiding high-pressure gas that flows in when the valve mechanism is opened into a gap formed between an end surface of the cylinder chamber and the piston; and a nail holder having an inner hole into which a pin member is loaded and into which the pin member is driven by the sliding action of the piston.

A rod member is attached to the piston of the present invention,
The tip of the rod member protrudes into the pin member loading inner hole of the nail holder, and the sliding action of the piston causes the tip of the rod member to slide and collide with the pin member. It is preferable to drive the pin member.

In the present invention, the valve mechanism includes a valve body, a communication hole formed in the valve body, a valve that is in pressure contact with a valve seat of the valve body to prevent high-pressure gas from flowing in, and a valve that connects the valve to the valve seat of the valve body. and a valve shaft having one end fixed to the valve body side of the valve and the other end protruding through the bottom of the valve body.

The valve opening mechanism of the present invention can be formed from a hammer member that strikes the protruding tip of the valve shaft, and an elastic mechanism that presses the hammer member toward the valve shaft with elastic force.

The valve opening mechanism is normally locked in a predetermined position by a locking mechanism. The locking mechanism includes a locking member that is pivoted to the device main body and that engages and locks the valve opening mechanism at one end, and an elastic mechanism that presses the locking member toward the valve opening mechanism. It can be formed from A release mechanism is brought into contact with the other end of the locking member, so that the locking member can rotate about a pivot point due to the action of the release mechanism and release the engagement with the valve opening mechanism. It's good to do that.

Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a first embodiment of the present invention, and reference numeral 10 designates the entire embedding device of the present invention. Further, reference numeral 14 indicates a small high pressure gas cylinder 30.
The mounting part that screws together is shown. Furthermore, the code 20 is
A valve mechanism is shown and is detachably installed in an inner hole 13 formed in the device body 10. The valve mechanism controls the flow of high-pressure gas sealed in the small-sized high-pressure gas cylinder 30 into the introduction path 12 through the gas supply hole 11 bored on the outside of the embedding device. The illustrated valve mechanism 20 has a valve body 21, and a side hole 2 in the side of the valve body is a communication hole that communicates with the introduction passage 12 at one end and communicates with the valve port of the valve body at the other end.
2 is formed. A valve 23 that closes the inflow of high-pressure gas is pressed by a spring 24 to a valve seat formed around the valve port of the valve body. One end of the spring is attached to the valve, and the other end is attached to the reservoir 3 that seals the inner hole 13.
It is attached to the lumen end surface of 5. If this reservoir can be attached to the inner hole 13 by screwing, it can be removed from the inner hole as appropriate, which is convenient in case a failure occurs in the valve mechanism or the like. The valve has a valve shaft 26 on the valve body side, and the tip of the valve shaft is connected to the bottom 25 of the valve body.
and protrudes into the inner hole 13 of the device main body.

It is preferable to attach packing to the portion where the valve contacts the valve seat portion of the valve body to ensure airtightness. Further, when one or more grooves are formed in an annular shape around the outer side of the valve body 21 and the O-ring 27 is fitted into the grooves, the valve body 21
The sealing between the outer part of the inner hole 13 and the inner wall of the inner hole 13 is improved.

Reference numeral 40 indicates a valve opening mechanism that opens the valve mechanism. The valve opening mechanism is installed in the inner hole 13 of the main body of the device in the same way as the valve mechanism. The valve opening mechanism includes a hammer member 41 that slides due to the elastic force of a spring 42 and hits the protruding tip of the valve shaft 26.
has. The hammer member includes a rod member 43.
is attached, and the tip of the rod member protrudes from the inner hole 13 to the outside of the device. A gripping portion 44 may be formed at the protruding tip of the rod member. Note that since the hammer member 41 slides the valve shaft 26 by the impact force, the spring 42 itself does not necessarily need to have a large elastic force. Note that the valve opening time can be controlled by the strength of the spring 42, so by selecting the spring 42 appropriately,
The spring 42 is selected so that it can supply only the amount of gas required for driving the nail twice.

Reference numeral 50 indicates a locking mechanism that locks the valve opening mechanism in a normal state. The locking mechanism includes a trigger member 51 that is a locking member that is pivotally supported on the main body of the device, and a protrusion formed on the one end of the trigger member by pressing one end of the trigger member toward the valve opening mechanism. and a spring 52 that engages the tip of the hammer member 41 of the valve opening mechanism. The trigger member has a push button mechanism 6, which is an example of a release mechanism, at the other end.
0 and presses down the connector 61 of the push button mechanism, the trigger member 51 rotates clockwise in the figure around the pivot point against the spring 52 and engages with the hammer member 41. The combination is starting to dissolve.

Reference numeral 70 indicates a cylinder chamber. The cylinder chamber is provided parallel to the valve mechanism. A piston 71 is slidably accommodated in the cylinder chamber. An annular gap 72 is formed around the head of the piston by providing a tapered surface or a step. The gap may be formed by providing a groove on the end surface of the cylinder chamber, or alternatively, the gap may be formed by providing a known means such as a stopper that stops the piston just before it comes into close contact with the end surface of the cylinder. It is also possible to form a section. By forming such a gap, the high pressure gas flowing in from the introduction path is sufficiently spread between the piston head and the end face of the cylinder, and the piston slides quickly. From the viewpoint of reducing energy loss, it is preferable that the gap, the introduction path, and the side holes formed in the valve body are arranged on the same straight line as shown in the figure. Further, in the illustrated embodiment, the introduction path is formed by a hole drilled in the main body of the device, but it can also be formed by a tube body.

When an annular groove is formed around the outer side of the piston and an O-ring is fitted into the groove, the airtightness between the piston and the cylinder space is improved.

Note that a gas vent hole is formed in at least one of the cylinder chamber 70 or the introduction path 12,
To allow gas flowing into a cylinder chamber to be discharged to the outside after driving a pin member.

Reference numeral 80 indicates a nail holder, and the holder is formed with an inner hole 81 into which a pin member 90 to be driven into an object such as a mold or concrete is loaded.
The other end of a rod member 73, one end of which is screwed onto the piston, is slidably inserted into the cylinder-side end of the inner hole.

FIG. 2 shows a second embodiment of the present invention, in which a valve mechanism 120, a valve opening mechanism 140, a locking mechanism 150, a cylinder chamber 170, a piston 17
1. Regarding the rod member 173 and the introduction path 112, there is no difference in structure from the first embodiment, but the nail holder 180 is slidably attached to the main body of the device, and the sliding movement of the nail holder is Safety mechanism 200 that unlocks and locks in conjunction with operation
This embodiment differs from the embedding device of the first embodiment in that it has the following.

In the illustrated embodiment, nail holder 180
Normally, the nail holder protrudes from the device body due to the elastic force of the spring 182, but by pressing the tip of the nail holder against the object into which the pin member is to be driven, it can be pushed toward the device body against the spring. It is installed so that it can be retracted and slid.

The safety mechanism 200 includes a safety rod 202, which is a sliding rod member, and a locking rod 205. The safety rod is slidably inserted into a hole 201 formed in the main body of the device. The rod is connected to the nail holder 180 by a safety plate 203, which is a connecting member, and slides in conjunction with the nail holder. Lock rod 205
is coupled to a connector 161 of a push button mechanism 160, which is an example of a release mechanism, and moves up and down together with the connector. The locking rod has a length such that its lowering movement can be obstructed by the safety rod before the safety rod is retracted. On the other hand, the safety rod has an unlocking hole 20 large enough to allow the tip of the locking rod to be inserted into the contact position of the tip of the locking rod when the rod is pulled in.
form 6. In addition, as shown in FIGS. 3 and 4, the locking rod is L-shaped so as not to penetrate through the inner hole 113 formed in the main body of the device.
Further, a hole 20 in which the safety rod 202 slides is provided.
1 and the inner hole 113 are preferably formed so that they do not overlap vertically.

Next, the operation and operation of the embedding device of the present invention will be described.

First, regarding the embedding device of the first embodiment, first, the high pressure gas cylinder 30 is inserted into the gas supply hole 1.
It is screwed into the mounting part 14 provided at the entrance part of No. 1. Then, the sealing plate of the cylinder is opened by the unsealing needle member provided on the attachment portion, and high-pressure gas flows into the inner cavity of the reservoir 35 from the gas supply hole. At this time, the valve 23 is compressed by the spring 24 against the valve seat of the valve body 21, so the high pressure gas is
It does not flow into the annular gap 72 formed between the head of the piston 71 and the end face of the cylinder. Then,
Load the pin member 90 into the inner hole 81 of the nail holder, press the tip of the nail holder 80 against the object into which the pin member is to be driven, and press the push button 62.
Press. Then, since the connector 61 is pressed down, the trigger member 51 of the locking mechanism rotates in the clockwise direction in the figure around the pivot point, so that the protrusion of the trigger member and the hammer member 41 of the valve opening mechanism are rotated. is disengaged, and the hammer member is pushed against the valve shaft 26 by the elastic force of the spring 42.
It is pushed to the side and slides vigorously, striking the tip of the valve shaft. Due to this impact force, the valve shaft slides toward the valve seat, so the valve 23 opens instantly, and the high-pressure gas in the inner cavity of the reservoir 35 flows through the valve, the side hole 22 of the valve body, and the introduction path 12. ,
It flows into the annular gap 72 in the upper part of the piston. Due to the pressure of this inflowing high pressure gas, the piston 71
is pressed and rapidly slides toward the nail holder 80, the tip of the rod 73 collides with the pin member 90, and the pin member is driven into an object such as concrete.

After driving the pin member, vent the gas inside the cylinder, insert the rod member into the inner hole 81 of the nail holder, and push the rod 73.
Push the piston 71 to its original position at the end of the cylinder. Further, when the hammer member 41 is returned to its original position against the spring 42 by the rod member 43 attached to the valve opening mechanism 40, the trigger member 5
1 is pressed by the spring 52 and automatically engages with the hammer member 41. At this time, the trigger member rotates in the counterclockwise direction in the figure about the pivot point, so the connector 61 is pushed up and the push button 62 returns to its original position.
When the valve mechanism 20 loses the kinetic energy given by the hammer member 41, the spring 2
The elastic force of 4 brings the valve 23 into pressure contact with the valve seat again, preventing the inflow of high-pressure gas and allowing only the amount of gas necessary for one driving operation to flow in.

Next, regarding the operation and operation of the embedding device of the second embodiment, the connection of the high pressure gas cylinder 130,
Loading of pin member 190 and valve mechanism 12
0. The operations of the valve opening mechanism 140, the locking mechanism 150, the piston 171, and the rod 173, as well as the high pressure gas inflow path, etc., are the same as in the first embodiment. However, in the embedding device of the second embodiment, when driving the pin member 190,
The difference is that an operation is required to press the nail holder 180 against the object to be driven and to draw the nail holder into the main body of the apparatus.

That is, in the device of the second embodiment, under normal conditions, the locking rod is blocked by the safety rod 202 and cannot move downward, so that the connector 16 of the push button mechanism connected to the safety rod
Since the lowering operation of step 1 is not possible, press button 162.
Even if the trigger member of the locking mechanism 150 is pressed, the trigger member of the locking mechanism 150 does not rotate, and the locking mechanism and the valve opening mechanism 140 are not disengaged. Therefore, even if the push button is pressed by mistake, the pin member will not be ejected.

Therefore, in order to operate the embedding device of the second embodiment, it is necessary to press the nail holder 180 against the object to be implanted. Then, the nail holder becomes
It slides against the spring 182 toward the main body of the device. Since the safety rod 202 is connected to the nail holder by the safety plate 203, it slides toward the hole 201 and stops in conjunction with the retracting operation of the nail holder. At this time,
The unlocking hole 206 formed in the safety rod is
Since it is located directly below the lower end of the locking rod 205,
The locking rod can now be lowered so that the push button 162 can be depressed and the connector 16
1, the engagement between the locking mechanism 150 and the valve opening mechanism 140 is released, and the hammer member 141 collides with the tip of the valve shaft 126. After that, the pin member 19
The operation up to the injection of 0 is the same as that of the apparatus of the first embodiment.

After driving the pin member, stop pressing the nail holder 180 against the object to be inserted, and operate the first embodiment in the same manner as the device to return the valve opening mechanism 140 to its original position. The connector 161 is pushed up by the member 150, and the locking rod 205 connected thereto also rises, so that the tip of the rod is removed from the unlocking hole 206, and by the action of the spring 182, the nail holder 180 and the safety rod are removed. 202 protrudes and slides from the main body of the device, and the position of the unlocking hole 206 moves. From then on, the locking rod 205 is blocked by the safety rod and cannot move downward, so that the push button cannot be pressed down. becomes impossible.

Since the embedding device based on the invention of the present application has the above-described structure, it is safe because the pin member can be driven into the object without using gunpowder, and there are no restrictions on the person handling the device. Nor.
Furthermore, since it is not necessary to provide enough strength to withstand the explosive force of gunpowder, weight reduction can be achieved. Furthermore, since it can be operated using a small high-pressure gas cylinder, the work can be done easily without having to worry about extending the compressed air supply hose or installing a compressor. Since the valve is opened instantaneously by the striking force of the mechanism, it is possible to minimize wasteful consumption of the gas in the small cylinder, making it economical.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing a first embodiment of the embedding device of the present invention, and FIG. 2 is a longitudinal sectional view showing a second embodiment of the embedding device of the present invention.
A vertical cross-sectional view showing the embodiment, FIG. 3, is taken along line A in FIG.
4 is a perspective view showing an embodiment of the locking rod attached to the implantation device of the second embodiment. 12,112...Introduction path, 20,120...Valve mechanism, 40,140...Valve opening mechanism, 50,1
50...Lock mechanism, 70,170...Cylinder chamber, 71,171...Piston, 80,180...
...Nail holder, 200...Safety mechanism.

Claims (1)

[Claims] 1. A mounting portion to which a small high-pressure gas cylinder can be connected;
A valve for controlling the inflow of high-pressure gas sent from the mounting part, which has a valve shaft protruding from one end surface and is normally pressed against a valve seat by an elastic mechanism; and a valve opening mechanism for opening the valve. The hammer member has a hammer member that normally faces away from the tip of the valve shaft, and has an elastic mechanism that has an elastic force that urges the hammer member toward the valve shaft to collide with the tip of the valve shaft. with things;
a locking mechanism that resists the resilient force and prevents the hammer member from moving toward the valve shaft in a normal state;
a cylinder chamber that slidably accommodates a piston therein; an introduction path that guides high-pressure gas that flows in when the valve mechanism is opened to a gap formed between an end surface of the cylinder chamber and the piston; a pin member; 1. An embedding device comprising: a nail holder having an inner hole into which the pin member is inserted, and into which the pin member is driven by the sliding movement of the piston. 2. The embedding device according to claim 1, comprising a safety mechanism that performs unlocking and locking operations in conjunction with the sliding operation of the nail holder. 3. The safety device is provided with an unlocking hole drilled in a sliding member that slides in conjunction with the sliding movement of the nail holder, and a locking rod member that can be inserted into the hole. An implantation device according to scope 2.