JPS62208879A - Underwater box nailing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an underwater nail mainly used for planting artificial seeds and seedlings such as Aranium and kelp by driving nails into concrete blocks thrown into the sea or underwater mudstone. Regarding hitting machines.

[Conventional technology]

To artificially create a seaweed community, plants such as Aran and kelp are planted on rocks in the sea, and if there are no suitable rocks on the seabed, concrete blocks are thrown into the sea and Aran, etc. are planted on these. There is a need.

Conventionally, when planting Aran etc. on rocks or concrete blocks, the condition of the rock or concrete block was observed underwater, and various methods were used depending on the condition, such as stretching wire in the form of a net. There is.

[Problem that the invention seeks to solve]

However, the conditions of the seabed are not uniform, and it is difficult to plant plants in a desired manner in response to tidal currents, so that they can grow easily in a place where they can easily grow, and in a stable manner over a long period of time. The problem is that it requires advanced technology.

[Means for solving problems]

In the present invention, a shaft member provided with a pusher is inserted into a main body so as to be movable in the axial direction with the push bar being brought out from the nozzle. A spring is provided to urge the shaft member to protrude, and a link having an elongated hole is attached to the shaft member so as to be rotatable in a plane substantially parallel to a plane including the central axis of the shaft member. Attachment: A rotating member rotated by a drive motor is supported on a pivot shaft so as to be rotatable in the circumferential direction, while a crank having a crank pin is attached to the pivot shaft and the crank pin is connected to the length of the link. A suppressing portion is inserted into the hole and pivotally supported to freely rotate relative to the rotating member, and the rotating member includes a suppressing portion that presses the pressure receiving portion of the crank and causes the crank to rotate approximately half a turn in a direction in which the shaft member compresses the spring. By providing this, the above-mentioned conventional problems are solved.

[Effect]

When the drive motor is operated in a state where the pawl member locks the locking pawl to the locking part and stops the movement of the shaft member, the rotating member rotates and the pressing part presses the pressure receiving part of the crank. rotate the crank around the pivot. As the crank rotates, the crank pin moves left and right within the elongated hole in the link, causing the link to swing left and right around the mounting shaft.

In the above condition, when the required nail is set under the push bar and the trigger is pulled, the pawl member that had been locking the locking part of the shaft member with the locking claw moves and is released from the locking part. By removing the retaining claw and releasing the restraint on the shaft member, the shaft member moves forcefully in the axial direction due to the force of the spring when the crank pin passes the top dead center of the movement due to the spring pressure, and the push bar pushes the nail. strike. At this time, the crank rotates at a faster speed than the rotating member as the crank pin receives the movement of the link that moves together with the shaft member, and reaches the bottom dead center.

Eventually, the suppressing part of the rotating member rotates, pressing the pressure receiving part of the crank, moving the shaft member via the crank pin and link, and compressing the spring. In this way, when the crank is rotated by the rotating member and the spring is compressed to the maximum, and the crank pin passes the top dead center, the shaft member moves by the force of the spring as shown in the figure, and the push bar Hit the nail with it.

The nailing operation described above continues as long as the trigger is pulled. When you stop pulling the trigger, the pawl member is returned to its original position and the locking pawl does not protrude into the moving surface of the locking part of the shaft member. Its movement can be stopped by locking it with a stopper.

〔Example〕

The attached drawings show an embodiment of the present invention, where ◯ indicates a pistol-shaped main body. A bushing 2 is attached to the part corresponding to the gun barrel of this main body, and a cylindrical shaft member 4 attached thereto causes the push bar 3 to come out from the nozzle 5 of the main body 1 and into the main body l. The provided sliding key 6 is inserted into the sliding groove 4b formed on the outer peripheral surface so as to be movable in the axial direction (left and right direction in FIG. 1), and a spring is applied so that the push bar 3 protrudes outward from the nozzle 5. 8. The negative side of the spring 8 is inserted into the shaft member 4, and the other end is brought into contact with a spring receiver 9 provided on the main body l. A link 11 having a long hole 11a is attached to the end of the shaft member 4 on the bushing part 3 side by a mounting shaft 12 so as to be rotatable in a plane substantially parallel to a plane containing the central axis of the shaft member 4, Further, a locking portion 4a is provided at the other end of the shaft member 4.

Below the shaft member 4 of the main body 1, a drive motor 13 consisting of a hydraulic motor is provided with a drive gear 14 inside the main body 1, and next to it, a rotating member 16 consisting of a crank 15 and gears is installed. A pivot shaft 17 rotatably supported rotates the rotating member 1
6, the driving gear 15 includes a crank pin 15a and a pressure receiving part 15b, and the crank pin 5a is connected to the link 11.
When fitted into the elongated hole 11a, the pressure receiving part 15b is attached to the pivot shaft 17 with the pressure receiving part 15b protruding from the rotating surface of the suppressing part 16a provided on the rotating member 16. Therefore, in the above configuration, when the drive gear 14 rotates due to the operation of the drive motor 13, the rotating member 16 rotates, and the suppressing part 16a pushes the pressure receiving part 15a of the crank 15, causing the crank 15 to rotate. When the crank 15 rotates, the crank pin 15a moves to the third position.
When moving from 0 to 180 degrees in the direction of arrow (A) in the figure, the shaft member 4 receives the rotating action of the crank pin 15a on the link II, is moved against the elasticity of the spring 8, and withdraws the pusher 3, but the crank Pin 15a is 180 degrees,
That is, after passing the top dead center, the force of the spring 8 moves it to the left in FIG. 1, causing the pusher 3 to protrude. On this occasion,
The crank 15 separates the pressure receiving part 15b from the pressing part 16a of the rotating member 16, rotates at a faster speed than the rotating member 16 in the direction of arrow (b) in FIG.
In other words, it instantly returns to the bottom dead center position.

A trigger 18 and a slide rod 9 are provided in the grip portion of the main body 1 so as to be movable back and forth (left and right in FIG. 1), and when the trigger 18 is manually pulled to the right in FIG. The slide rod 19 is pressed by the protrusion 21 of the trigger 18 and moves to the right, and when the finger is released from the trigger 18, the slide rod 19 moves to the left by the action of the return spring 22, pushing the protrusion 21 and returning the trigger 18 to its original state. It is configured to return.

Above the slide rod 19 of the main body l, a claw member 23 having a bell crank structure is provided at one end of the locking claw 23.
a protrudes from the moving surface of the locking part 4a of the shaft member 4, and the other end 23b is engaged with the engaging part 19a of the slide rod 19, and is rotatably provided by the sleeve 24. ing. The claw member 23 locks the locking portion 4a with its locking claw 23a to stop the movement of the shaft member 4, and the trigger 18
When pulled, it rotates about the shaft 24 via the slide rod 19, and the locking portion 4a releases the locking pawl 23a.

The shaft member 4 is formed to have an appropriate weight to strengthen the inertial force, and the shaft member 4 is provided at the tip of the bushing 2.
A cushioning material 25 made of a flexible material such as rubber is attached to reduce the impact that occurs when a collision occurs.

Reference numeral 26 denotes a magazine which is detachably attached to the nozzle 5 portion of the main body 1, and is adapted to send out the nails 27 housed inside to the 1 water-dead busher 3. 7 is a sealing member that prevents water from entering into the main body (2).

Next, the operation of the nailing machine according to the present invention configured as described above will be explained along with how to use it.

The locking pawl 3 is retracted, and the locking pawl 2 of the pawl member 23
3a locks the locking portion 4a and stops the movement of the shaft member 4! At r3 (FIG. 1), the magazine 26 is attached to the nozzle 5 of the main body 1, one nail 27 is set in front of the pusher 3, and the drive motor 13 is rotated.

In this state, the crank 15 is pressed against the pressing portion 1 of the rotating member 16.
6a is reciprocated along the receiving hole 11a. Note that the link 11 is connected to the crank pin 1 of the crank 15.
5a, it swings left and right about the mounting shaft 12 as a fulcrum.

When the trigger 18 is pulled to the right in FIG. 1 from the above state, the pawl member 23 is moved via the slide rod N19, disengaging the locking pawl 23a from the locking portion 4a and setting the shaft member 4 in a free state. .

In this way, when the locking pawl 23a is removed from the locking portion 4a, the shaft member 4 will move the crankpin 15a when the crankpin 15a of the crank 15 is in the range of 0 to L80 degrees.
Wait until the angle exceeds 180 degrees, and then tighten the crank pin 15 again.
aI) (When the angle is over 180 degrees, the force of the spring 8 immediately moves the force to the left in FIG. When the pressing part 16a of the rotating member 16 touches the pressure receiving part 15b at around 0 degrees and starts rotating the crank 15,
When the spring 8 is compressed and moves to the right in Fig. 1, if the trigger 18 is kept pulled, the shaft member 4 will release the spring as described above when it passes the position where the crank pin 15ah<180 degrees. Use the power of 8 to move to the left and use Butsupa 3 again to nail 2
Hit 7. This nailing action continues repeatedly as long as the trigger 18 force is applied.

When you stop pulling the trigger 18 after driving one nail 27, the slide rod 19, trigger 18, and claw member 23 are returned to their original states by the force of the return spring 22, and the claw member 23 is locked. The pawl 23a projects onto the moving surface of the locking portion 4a of the shaft member 4, and immediately locks the locking portion 4a when it moves (FIG. 1), thereby stopping the shaft member 4.

When the shaft member 4 stops moving, operate the magazine 26,
The next nail 27 is set in front of the pusher 3, and the trigger 18 is pulled again to begin nailing work.

〔Effect of the invention〕

As explained above, according to the underwater nailer of the present invention, no matter what condition underwater rocks, concrete blocks, etc. are in, it can be moved to the desired position regardless of their shape, size, condition, etc. It is possible to quickly and accurately drive nails in desired conditions or density, and to stably plant kelp etc. in the best conditions suitable for the growing environment.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view of an underwater nailer according to the present invention, FIG. 2 is a cross-sectional view showing the relationship between a shaft member and a bushing, etc., and FIG. FIG. 4 is a schematic bottom view showing the relationship between the crank and the links, and FIG. 4 is a plan view showing the mounting state of the magazine. ! ...Body, 3...Butsuper, 4...Shaft member, 5...Nozzle, 8...Spring, ■! ···Link,
Ila... Long hole, 12... Mounting shaft, 13... Drive motor, 15... Crank, 1 '5 a... Crank pin, 15b... Pressure receiving part, 16... Rotating member ,
16a... Pressing part, 17... Pivot.

Claims (1)

[Claims] A shaft member provided with a push bar is inserted into the main body so as to be movable in the axial direction with the push bar projecting outward from the nozzle, and between the main body and the shaft member, the push bar projects outward from the nozzle. A spring is provided to bias the shaft member, and a link having an elongated hole is attached to the shaft member by a mounting shaft so as to be rotatable in a plane substantially parallel to a plane including a central axis of the shaft member. A rotating member rotated by a drive motor is provided on the main body so as to be rotatable in the circumferential direction by being pivotally supported on a pivot shaft. A pressing portion is inserted into the hole and pivotally supported for free rotation with respect to the rotating member, and the rotating member has a pressing portion that presses the pressure receiving portion of the crank and causes the crank to rotate approximately half a turn in a direction in which the shaft member compresses the spring. An underwater nailer characterized by being equipped with.