JPH0624717B2 - Driving device for fasteners - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener feeding device for a driving tool, and more particularly to an operator for actuating a feeding valve that sequentially feeds the fasteners to an injection port. The present invention relates to a fastener feeding device for a driving machine.

[Conventional technology]

Japanese Patent Application Laid-Open No. 61-117074 shown in FIG. 5 is a prior art fastener feeder for a driving machine having the above-mentioned operator. The operation will be described below with reference to FIG.

Reference numeral 1 is a main body of a driving machine, and when a push lever 2 is pressed against a material 3 to be driven and a trigger 4 is pulled by a finger, a main valve 5 is operated and a main piston 6 is driven to drive a stopper 7. On the other hand, in the feeding valve 8 provided on the upper portion of the main valve 5, when the operator 9 is pushed downward with a finger, the feeding valve 10 opens and the compressed air accumulated in the accumulator 11 passes through the passage 12. The feeding piston 13 is moved to the right in the figure. When the operator 9 is released, the compressed air acting on the feeding piston 13 is discharged to the atmosphere through the passage 12, and the feeding piston 1
3 is returned to the left, and the stopper 7 is sent to the injection port 14 at this time.
As described above, the feeding of the stopper 7 is performed by operating the operator 9. As described above, in the related art, the stopper 7 is fed by operating the operating element 9 provided on the upper part of the main valve 5, but the operating element 9 is located away from the trigger 4 for operating the main valve 5. Therefore, it is difficult to operate the operating element 9 with the hand holding the handle 15, and it is necessary to feed the stopper 7 by operating the operating element 9 with the other open hand.

[Problems to be Solved by the Invention]

In the above-mentioned conventional technique, since the operator 9 and the trigger 4 are located apart from each other, it is difficult to operate the operator 9 with the hand holding the handle 15, and the operator 9 is operated with the other open hand. It was necessary to feed the fastener 7. Therefore, there is a drawback that the work to be performed while supporting the driven material 3 with one hand cannot be performed in upward or sideways work, and the use thereof is limited.

An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to improve the operability of the operating element, and to provide a fastener feeding device for a driving tool with good operability that can be used for various purposes.

[Means for Solving the Problems]

The above object can be achieved by disposing two operators for activating the stopper feeding valve on both sides of the handle in the vicinity of the trigger so that they can be operated by the fingers of the hand holding the handle of the driving tool. .

[Action]

In the present invention, two operators for activating the feeding valve for feeding the stopper are arranged on the left and right sides of the handle at a position where the trigger for controlling the main valve can be operated by the fingers of the hand. In addition to improving the performance, it is possible to perform one-handed operation by supporting the driven material with one hand, and it becomes easier to drive the work into a narrow space, so the application is expanded.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to FIGS.

FIG. 1 is a side view showing an embodiment of a fastener feeding device for a driving tool according to the present invention, and FIGS. 2 and 4 are partially enlarged side views of the fastener feeding device portion of FIG. 1, respectively. FIG. 3 is a sectional view taken along the line AA of FIG.

In FIG. 1, the driving machine body 1 is provided with a main piston (not shown), and the main piston (not shown) automatically repeats vertical movement when the trigger 4 is pulled, and the injection port 14 The stopper 7 that has been fed to is struck with one or multiple hits.

On the other hand, as shown in FIGS. 2 to 4, a feed valve 8 is provided obliquely above the trigger 4, and an operator 9 is provided in the feed valve 8. The operator 9 closes the feeding valve 10 by the load of the spring 16. Also, as shown in FIG.
Two feeding valves 8 and two operators 9 are provided on both left and right sides of the handle 15 so that they can be operated by fingers of the hand holding the handle 15.

A passage 12 is provided in the lower portion of the feeding valve 10 and communicates with the upper portion of the feeding piston 13 of the feeding portion 17 in FIG. The feeding piston 13 is pressed backward by the feeding spring 18, that is, rightward in FIG. Also, the feeding piston 13
Is provided with a feed claw 19 and is engaged with a stopper connecting piece 20.

In the above structure, in order to feed the stopper 7 to the ejection port 14 after the stopper 7 is driven, the operator 9 is pulled by the finger pulling the trigger 4.
When is pushed upward, the feeding valve 10 opens and the accumulator 1
The compressed air accumulated in 1 passes through the passage 12 and flows into the right end of the feeding piston 13 to advance the feeding piston 13 to feed the stopper 7 to the ejection port 14 by the feeding pawl 19. On the other hand, when a finger is released from the operator 9, the operator 9 descends and the feeding valve 10
And the compressed air on the right side of the feeding piston 13 passes through the passage 12 and is discharged to the atmosphere. Therefore, the feeding piston 13 is pressed and returned by the feeding spring 18, and the feeding claw 19 is engaged with the stopper connecting piece 20 again.

With the above-mentioned configuration, the trigger and the operating element can be operated with one hand, so that it is possible to perform the hammering work in which the hammering target material is supported by one hand. Further, since the operating elements are provided on both the left and right sides, the operating elements can be operated regardless of the dominant arm, and the driving machine can be operated even in a narrow place or a place where there is an obstacle on one side. According to the present invention, since the operators for feeding the stoppers are provided on the left and right at the positions where they can be operated by the fingers of the hand holding the handle of the driving machine, respectively, Since the operator can be operated regardless of the dominant arm, operability is improved. Further, it is possible to carry out the driving work in which the material to be driven is supported by one hand, and the driving work can be performed in a narrow place or a place where there is an obstacle on one side, which has the effect of expanding the application.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a fastener feeding device for a driving tool according to the present invention, and FIGS. 2 and 4 are partially enlarged side views of the fastener feeding device portion of FIG. 1, respectively. FIG. 3 is a sectional view taken along the line AA of FIG. 1, and FIG. 5 is a longitudinal sectional view of a conventional driving machine. In the figure, 1 is a driver main body, 4 is a trigger, 5 is a main valve, 7 is a stopper, 8 is a feed valve, 9 is an operator, 10 is a feed valve, 11 is an accumulator, 12 is a passage, 13 Is a feeding piston, 14 is an injection port, 15 is a handle, 16 is a spring, 17 is a feeding portion, 18 is a feeding spring, 19
Is a feed claw, and 20 is a stopper connecting piece.

Claims (1)

[Claims] 1. A main piston that performs a driving operation, a main valve that controls the driving operation of the main piston, a trigger that is provided below a handle and that controls opening and closing of the main valve, and a driven stopper. An injection port for ejecting the tool, a feeding part for feeding the device to be driven into the injection port, and a pressurizing gas passage to the feeding part, which is provided on the outer surface of the driving machine main body. In a driving machine in which a feeding valve operable by an operator is provided independently of the main valve, two operators are provided on both sides of the handle near the trigger, and the handle is gripped. A fastener feeding device for a driving tool, characterized in that the operator can be operated by hand.