JPH063571U - Driving machine - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a driving machine for driving a stopper or the like into a material to be driven by using compressed air as a power source. It is to reduce the recoil at the time of driving, which is caused by the weight reduction, and improve the driving accuracy. [Structure] A flexible mounting member 10 made of rubber or the like is provided on a part of a housing 7 of the driving machine body 1 to cover the weight of the driving machine body 1 by 20.
By removably attaching the weight member 8 enclosing the metal pieces 9 of 50% to 50%, the recoil when the stopper 4 is driven is reduced and the driving precision is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a recoil reduction device for a driving machine, such as an air nailing machine, which can suppress recoil when driving a fastener such as a nail.

[0002]

[Prior art]

 In a conventional driving machine, the control valve is activated by pulling the trigger, and the compressed air stored in the inside of the driving machine operates the drive section of the driving machine, causing the driving rod to descend rapidly. The structure is such that the stopper inside the ejection port is driven out.

[0003]

[Problems to be solved by the device]

 This type of driving machine is often used in places other than the floor surface, such as wall surfaces and ceiling surfaces, and its applications are expanding to improve the accuracy of the driving position in addition to interior finishing stoppers and base driving. Due to the requirements for flooring, etc., recently, since a single driving machine is often used for these purposes as well, the weight of the driving machine itself has been reduced by adopting aluminum die casting to improve operability. I'm out. In addition, as a result, the driving machine body recoils at the time of driving and jumps upward, which deteriorates the driving accuracy. Usually, when it is used for grounding work, wall surface, or ceiling work, there is no particular problem with the finish due to this reaction, but when the flooring is used, if the reaction of the driving machine body is large, Since the main body of the driving machine jumps up from the driving position when the fastener is driven into the floor material, it cannot be driven near the center of the tongue, which is the original driving position. Also, if it could not be driven near the center of the tongue, a gap would be created even if the next floor materials were combined, and the floor material would have to be reattached. An object of the present invention is to solve the above-mentioned problems, to reduce the recoil of this kind caused by the weight reduction of a driving machine, and to improve the driving accuracy.

[0004]

[Means for Solving the Problems] In order to achieve the above object, particularly when it is necessary to accurately drive a stopper to a driving position, a part of the housing of the driving machine main body having a mass of about 10 A weight member made of 20% to 50% metal pieces and wrapped with a flexible mounting member such as rubber can be attached.

[0005]

[Action]

 In the driving machine equipped with the weight member configured as described above, when the stopper receives the reaction when the stopper is driven into the material to be driven, the upward load is canceled because the weight member is attached. The recoil is reduced. Further, when the work is not required to be performed with high precision, such as underlaying, it is possible to remove the weight member and work with the driving machine being lightweight.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. 1 is a side view showing the whole of a driving tool body according to the present invention, FIG. 2 is a side view of a weight member according to the present invention, and FIG. 3 is a sectional view taken along the line AA of FIG. In the figure, in order to drive the stopper 4, the control valve 3 is opened and closed by operating the trigger 2, and the compressed air stored inside the driving machine main body 1 is operated by the drive unit (not shown) of the main body. By doing so, the driving rod 5 is rapidly lowered and the stopper 4 in the ejection port 6 is driven out. At this time, the driving tool body 1 jumps upward as a reaction to the motion of the driving rod 5 descending rapidly. In order to eliminate the influence of the recoil in terms of driving accuracy in the operation of accurately driving the stopper 4, the weight member 8 having a weight of about 20% to 50% of the driving machine body 1 is used. It is necessary to provide it on the outer periphery of the main body 1 centered on 5.

That is, in the present invention, the weight member 8 in which the metal piece 9 is wrapped with the mounting member 10 shown in FIGS. 2 and 3 is formed on the upper end portion of the housing 7 in FIG. 1, and the weight member 8 can be removed. In addition, the inner diameter of the weight member 8 is formed slightly smaller than the outer diameter of the housing 7 at the position where the weight member 8 is attached, so that the weight member 8 can be detached from the housing 7. It is configured so as to be in close contact with the outer periphery of 7 and not slip. The material of the mounting member 10 that wraps the metal piece 9 is made of a material having a high friction coefficient such as rubber or urethane. In the driving machine configured as described above, since the weight member 8 is provided on the outer circumference of the housing 7, the upward jump of the driving machine body 1 can be reduced and the weight member is removed during normal operation. This makes it possible to work as a lightweight driving machine.

[0008]

[Effect of device]

 According to the present invention, a metal piece wrapped in a flexible material is removably attached to a part of the outer periphery of the driving tool, so that the weight of the driving tool main body can be reduced when the fastener is accurately driven. Since the recoil caused by the movement can be reduced, the driving accuracy is improved.

[Brief description of drawings]

FIG. 1 is a side view of a driving tool body showing an embodiment of the driving tool of the present invention.

FIG. 2 is a side view of the weight member of the present invention.

3 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

1 is a driving tool main body, 2 is a trigger, 3 is a control valve, 4 is a stopper, 5 is a driving rod, 6 is an injection port, 7 is a housing, 8 is a weight member, 9 is a metal piece, 10 is a mounting member. Is.

Claims (1)

[Scope of utility model registration request] 1. A driving machine which uses compressed air as a power source and drives a driving rod to drive a fastener such as a nail. A metal having a mass of about 20% to 50% of a weight of a driving machine main body. A driving machine characterized in that a weight member whose one piece is covered with a flexible mounting member such as rubber is detachably attached to the driving machine body to temporarily increase the weight of the driving machine body.