JPH0533290Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a prong nail driving device for fastening parallel pieces of wood in a lumber yard to thick wires or wire ropes.

[Conventional technology]

Usually, the lumber in a lumberyard is arranged in parallel, and a raft is formed by fastening thick wire or wire rope that crosses each lumber with a prong nail driven into each lumber. The conventional technique for driving these prongs is to manually drive them using a hammer.

[The problem that the idea aims to solve]

Since it is driven in manually using a hammer, there is a problem in that it is time consuming and reduces efficiency.

Also, since a fork nail with a large diameter is used, the fork nail cannot be driven in without applying a large blow to the fork nail.

For this reason, there was a problem of high fatigue level.

This invention was made in view of the above-mentioned problems, and the object is to provide a driving device that can extremely easily drive a fork nail.

[Means to solve the problem]

In order to solve the above problems, this invention includes an elevating body that is provided to be raised and lowered by appropriate means,
A support member is provided to apply a downward pressing force to the lower end of the elevating body so that it can be raised and lowered freely, and the lower end of the elevating body is supported by the support member such that it projects downward from the lower edge of the elevating body, and the lower end of the elevating body is supported by the supporting member, and a receiving member that receives a supply of prongs in the passage; a slide provided on the elevating body to be raised and lowered by the action of a cylinder; an impact cylinder positioned directly above the receiving member and held by the slide; and a passage. A hammer whose lower end side is fitted above the fork and whose upper end is supported by the holder of the impact cylinder, and a hammer provided to guide a thick wire or wire rope between both sides of the fork to be driven into the lower end of the elevating body. The guide member is made up of a guide member.

[Effect]

The elevating body is lowered toward the upper circumferential surface of the wood, and then the impact cylinder is lowered together with the slider due to the extension of the cylinder, and the lower end of the hammer is brought into contact with the head end of the prong nail fed into the passage of the receiving member. Or bring them closer.

After that, an impact cylinder is used to apply a blow to the head end of the fork nail with a hammer, and while the cylinder pushes down the slider, the hammer is lowered together with the impact cylinder to drive the fork nail that escaped from the receiving member into the wood. .

〔Example〕

In the figure, reference numeral 1 denotes an elevating body, and at the lower end side of this elevating body 1 is provided a support member 2 which is movable up and down and which applies a downward pressing force.

As shown in FIG. 6, the above-mentioned support member 2 supports the upper and lower ends of the guide shaft 4 that are parallel to the protrusions 3 that protrude from above and below the lower end side of the elevating body 1, and also allows the guide shaft 4 to support the upper and lower ends of the guide shaft 4. The cylindrical part 5 of 2 is fitted so that it can be raised and lowered freely, and the upper protrusion 3 penetrates the upper part of the shaft member 7, which is erected with its lower end supported by a protrusion 6 protruding from the back surface of the support member 2. At the same time, both ends of the coil spring 8 fitted on the outside of the shaft member 7 are brought into contact with the above-mentioned upper protruding piece 3 and the protruding piece 6, and at least one end of the spring 8 is supported or fixed to the other side and is directed downward. Although a pressing force of 1 is applied, other configurations may be used to freely move up and down and apply a downward pressing force.

Reference numeral 9 denotes a receiving member supported by the supporting member 2 so as to receive the fork A from the chute 10 into the vertical passage 11.

The above-mentioned receiving member 9 is constructed by providing an approach path 12 communicating with the passage 11 in the middle of the passage 11 as shown in FIG. The pronged nail A that fell on 11 is
It is designed to be stopped by a temporary fixing device 13 to prevent it from falling off.

The temporary fixing device 13 has a pair of notches 14 provided on both sides of the lower end of the receiving member 9 so that the outer periphery and the passage 11 communicate with each other, and a pin 15 that fits into the notches 14 to allow the upper end to rotate freely. Supported claw 16
and a shaft member 19 that is slidably fitted into a cylinder 17 provided on both sides of the receiving member 9 and is pressed against the outer edge of the claw 16 by a spring 18.
The forked nail A that has fallen into the passageway 11 is stopped by being pinched by both claws 16, and when a blow is applied to the head end of the forked nail A, both claws 16 are pushed back and lowered. It is also possible to temporarily fix it by using a similar method.

Note that the fork A supplied to the chute 10 is slid toward the lower end of the inclined rail 20 by making the fork A straddle the plate-shaped inclined rail 20 as shown in FIGS. 8 to 10. At the same time, a first stopper 23, a two-pronged piece whose lower end straddles the upper end of the inclined rail 20, is moved up and down by the action of the first cylinder 21 and the second cylinder 22 above the lower end of the inclined rail 20. A second stopper 24 is provided, and the second stopper 2
Lower 4 and insert the first prong A and the second prong A.
Insert the lower end of the second stopper 24 between the
Next, the first stopper 23 is raised and the hopper 25
The first fork A is supplied to the chute 10 from.

After the above-mentioned supply, the first stopper 23 is lowered, and then the second stopper 24 is raised.

As shown in the figure, if the first stopper 23 is cut off halfway, both ends of the cut-off part are rotatably connected by a pin 26, and the lower part of the cut-off part is returned to the higher part of the inclined rail 20 by a spring 27. When the second stopper 24 is inserted between the prongs A, even if the first prong A slips a little, the lower part of the first stopper 23 can be pushed away, eliminating the cause of failure. .

28 is located above the slider 2 and the elevating body 1
This slider 2 is a slider that can be raised and lowered.
8 is connected to a cylinder 29 supported by the elevating body 1, and is pulled up by the contraction action of the cylinder 29 and pushed down by the extension action of the cylinder 29.

Reference numeral 30 denotes an impact cylinder positioned directly above the receiving member 9 and held by the slider 28. The upper end of a hammer 32, the lower part of which is fitted into the passage 11, is removably attached to the holder 31 of the impact cylinder 30. ing.

A guide member 33 is provided at the lower end of the elevating body 1 and guides the thick wire or wire rope b so that it aligns with the axis of the passage 11.

As shown in FIGS. 2, 3, and 5, the guide member 33 described above includes a vertical cylinder 34 provided on the elevating body 1, and a shaft member 35 that is slidably inserted into the cylinder 34. , an eight-shaped guide member attached to the lower end of the shaft member 35, which is stopped by a long hole 36 and a pin 37 passing through the long hole 36, and is pressed down by a spring 38 fitted to the outside of the lower part of the shaft member 35. 33
Even if the elevating body 1 continues to descend only when it comes into contact with the upper peripheral surface of the wood a, the shaft member 35 along with the guide member 33
Although the guide member 33 is prevented from being damaged by being pushed away upward, the guide member may be formed of a bullet and the bullet may be deformed.

A method for driving a prong nail using the driving device configured as described above will be explained.

First, the elevating body 1 is lowered to bring the lower end of the receiving member 9 into contact with the upper peripheral surface of the wood a.

At this time, since the spring 18 is compressed and the support member 2 is raised together with the receiving member 9, the lower end of the receiving member 9 is pressed against the upper peripheral surface of the wood a.

Further, the guide member 33 guides the thick wire or wire rope b that crosses the upper peripheral surface of the wood a so as to match the axis of the passage 11.

Next, when the slider 28 is lowered by the expansion action of the cylinder 29 and the lower end of the hammer 32 contacts or approaches the head end of the prong A in the passage 11, a detector (not shown) such as a limit switch is activated to generate an impact motion. The cylinder 30 acts to apply a blow to the head end of the prong nail A with the hammer 32, and the cylinder 2
The upward reaction force of the impact cylinder 30 is suppressed by the downward force acting on the slider 28 due to the extension action of 9, and the prong nail A escaped from the lower end of the passage 11 is driven into the wood a.

At this time, the thick wire or wire rope b penetrates the fork A and is fastened to the wood a.

After driving the prong A, a detector such as a limit switch is activated to contract the cylinder 29 and raise the elevating body 1.

In addition, the elevating body 1 is provided with a traveling vehicle 43 with a driver's cab 42 that runs by itself along a rail 41 in the case shown in the figure.
A plurality of grooved rails 44 extend downward from this traveling vehicle 43.
are installed vertically, and an elevating body 1 is installed on each rail 44.
A wheel 46 supported on the arm 45 is fitted and guided, and a wire 48 of a hoisting machine 47 installed on a traveling vehicle 43 is connected to the elevating body 1, and the hoisting machine 47 is operated from the driver's cab 42 to move the hoisting body. After driving the prongs A, the traveling vehicle 43 was moved intermittently to cross the parallel timbers a, and the parallel timbers a were assembled into rafts in an underwater lumber storage yard. You may also move the wood a.

Also, the thick wire or wire rope b is fed out from a drum 49 of the traveling vehicle 43.

In addition, as shown in FIGS. 2, 3, and 4, a leg shaft 50 that can be raised and lowered is provided in a square of the elevating body 1,
When the leg shaft 50 is pressed down by the spring 51, the lower end of the leg shaft 50 comes into contact with the upper peripheral surface of the wood a as the elevating body 1 descends, compressing the spring 51 and pushing the leg shaft 50 back. Wood a is captured.

In the figure, 52 is a guide member for the slider 28, 53 is a plate-like member that prevents the prong A on the inclined rail 20 from falling as it rises, and 54 is provided on both sides of the lower part of the receiving member 9, and the lower end of the receiving member 9 is This is a contact member that projects downward from the lower surface.

〔effect〕

As described above, according to the fork nail driving device according to the present invention, the fork nail that is being supplied to the passage of the receiving member by the hammer is driven into the wood by applying the action of the impact cylinder, so that the efficiency can be significantly improved. Can be done.

Further, since the impact cylinder having the hammer is supported by the slider and the slider is pushed down by the cylinder, the impact of the hammer can be effectively applied to the nail.

Furthermore, since the wire or wire rope is made to face directly below the passage by the guide member, the wire or wire rope can be securely fastened to the wood via the fork.

[Brief explanation of the drawing]

Figure 1 is a side view of the prong nail driving device according to this invention, Figure 2 is an enlarged side view showing the main parts of the above, Figure 3 is a front view of the same, and Figure 4 is an enlarged partial cutout of the leg shaft. 5 is a front view of the guide member, FIG. 6 is an enlarged longitudinal sectional front view showing the prong nail driving portion, FIG. 7 is an exploded perspective view of the hammer portion, and FIG. 8 is the prong nail supply portion. FIG. 9 is an enlarged front view of the main parts of the same, and FIG. 10 is a sectional view taken along the line of FIG. 8. 1... Lifting body, 2... Supporting member, 3... Projection piece,
4...Guide shaft, 5...Cylindrical part, 6...Protrusion piece, 7
... shaft material, 8 ... spring, 9 ... receiving member,
10... Chute, 11... Passage, 12... Approach path, 13... Temporary fixing device, 28... Slider, 2
9...Cylinder, 30...Impact cylinder, 31
...Holder, 32...Hammer, 33...Guide member, A...Fork nail.

Claims (1)

[Scope of utility model registration request] An elevating body provided to be raised and lowered by appropriate means, a support member provided to be movable up and down by applying a downward pressing force to the lower end of the elevating body, and a lower end protruding downward from the lower edge of the elevating body. a receiving member that is supported by the supporting member in such a manner that the fork is supplied into the passage from the chute; a slider that is provided on the elevating body so as to be raised and lowered by the action of a cylinder; An impact cylinder positioned and held by the slider, a hammer whose lower end is fitted above the prong in the passageway and whose upper end is supported by the holder of the impact cylinder, and a prong driven into the lower end of the elevating body. A prong nail driving device consisting of a guide member installed to guide a thick wire or wire rope between the rods on both sides.