JPH0717478U - Nailer grip device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a grip device for a nailing machine having a high impact absorbing effect. A thick grip cover (10) is provided in the grip (6) and a portion in the vicinity thereof that comes into contact with the hand when gripping, and the grip (6) and the grip cover (10) are provided at least in a portion of the grip (6) that is directly impacted when nailing. A gel-like cushioning material 11 was interposed between and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grip device for a nail driving machine that impacts a nail with compressed air.

[0002]

[Prior art]

 In a nailing machine operated by compressed air, a large impact is applied to the hand gripping the grip by the reaction force generated when driving the nail. This impact is particularly remarkable in a nailing machine that uses high-pressure compressed air, such as a nailing machine for concrete driving. To alleviate this, conventionally, a tape 13 is wrapped around the grip 12 as shown in FIG. It was

However, although a shock is received in the vicinity of the grip 12 when gripped, there is a portion p where the tape 13 cannot be wound due to a trigger valve or the like, so that shock absorption is insufficient. In addition, the restrictions on usable air pressure have been relaxed recently, and the use of high-pressure compressed air has been permitted. Therefore, the development of a grip with a higher impact absorption effect is desired.

[0004]

[The purpose of the device]

 An object of the present invention is to solve the above problems and provide a grip device for a nailing machine having a high impact absorbing effect.

[0005]

[Means for achieving the purpose]

 In order to achieve the above object, a grip device of a nailing machine according to the present invention comprises a drive piston driven by compressed air, a drive cylinder slidably accommodating the drive piston, and a drive piston. In a grip projecting on one side of the nailing machine main body having an injection section for guiding the sliding of the driver, a thick grip cover is provided on the grip and a portion in the vicinity thereof that comes into contact with the hand when gripping the grip. A gel-like cushioning material is interposed between the grip and the grip cover at least in a portion of the grip which is directly impacted when driving the nail.

[0006]

[Function and effect of the device]

 According to the present invention, when the driving piston is driven when driving the nail, the reaction force of the driving piston gives an impact to the hand holding the grip. However, the grip is provided with a thick grip cover that absorbs shocks, and a gel cushioning material with improved shock absorption effect is interposed at the position where the shock is directly applied when driving the nails. Impact due to reaction force during driving is effectively absorbed, and it is greatly mitigated. Therefore, it is possible to provide an optimum grip device for a nailing machine that uses high-pressure compressed air.

Further, by forming the grip cover in advance according to the shape of the grip, it can be attached even if the grip has irregularities. Therefore, unlike the tape-shaped one, there is no unbonded portion, and the entire necessary area can be covered.

[0008]

【Example】

 FIG. 1 shows a pneumatically driven nail driving machine, which comprises a driving cylinder 2 in a nailing machine body 1 and a driving piston 3 slidably accommodated in the driving cylinder 2. At the same time, the nail supplied to the injection portion 5 at the tip of the nailing machine body 1 is driven out by the driver 4 integrally connected to the lower surface of the drive piston 3.

An air chamber 7 for storing compressed air supplied from a compressed air supply source a such as an air compressor via a grip 6 is formed in the nailing machine body 1, and the compressed air in the air chamber 7 is triggered. It is supplied to the upper surface of the drive piston 3 in the drive cylinder 2 according to the opening and closing of the main valve 9 which is operated by 8, and the drive piston 3 is driven by this and the nail is driven out from the injection part 5.

By the way, a grip cover 10 is provided on the outer peripheral surface of the grip 6 provided on one side of the nailing machine body 1 and in the vicinity thereof. The grip cover 10 is a thick member made of rubber or soft synthetic resin, and is provided in the grip 6 and a portion in the vicinity thereof that comes into contact with the hand when gripping, and the one integrally formed into the grip 6 is used as the grip 6. It may be attached by attaching it to the grip 6 by passing it through or winding a strip-shaped one.

Next, as shown in FIGS. 2 and 3, a gel-like cushioning material 11 is sealed between the grip 6 and the grip cover 10. Such a cushioning material 11 is arranged in the grip 6 at least at a portion which is directly impacted when the nail is driven. Such an impacted portion is a portion corresponding to the upper surface and the lower surface of the grip 6 with the ejection portion 5 facing downward.

Further, a gel-like cushioning material 11 having a high shock absorbing effect is interposed between the grip 6 and the grip cover 10. The gel-like buffer material 11 is preferably a gel-like substance mainly composed of silicone.

According to the above configuration, when the drive piston 3 is driven during nailing, the reaction force exerts an impact on the hand holding the grip 6. However, the grip 6 is provided with a thick grip cover 10 that absorbs shocks, and a gel shock absorbing material 11 having a high shock absorbing effect is sealed in a portion that is directly impacted when driving a nail. Therefore, the impact due to the reaction force at the time of driving the nail is effectively absorbed and greatly reduced. Therefore, it is possible to provide an optimum grip device for a nailing machine that uses high-pressure compressed air.

Further, by forming the grip cover 10 in advance according to the shape of the grip 6, even if the grip 6 has irregularities, it can be attached. Therefore, unlike the tape-shaped one, there is no unbonded portion and the entire necessary area can be covered.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a nailing machine according to the present invention.

FIG. 2 is a vertical sectional view of a grip device.

3 is a cross-sectional view of FIG.

FIG. 4 is a vertical sectional view of a conventional grip portion.

[Explanation of symbols]

 1 nailing machine main body 2 drive cylinder 3 drive piston 5 injection part 6 grip 10 grip cover 11 cushioning material

Claims (1)

[Scope of utility model registration request] 1. A nailing machine main body having a drive piston driven by compressed air, a drive cylinder slidably accommodating the drive piston, and an injection portion for guiding the sliding of a driver connected to the drive piston. In the grip provided on one side of the grip, a thick grip cover is provided on the grip and a portion in the vicinity thereof that comes into contact with the hand when gripping, and at least a portion of the grip that is directly impacted when driving a nail. A grip device for a nailing machine, characterized in that a gel-like cushioning material is interposed between the grip and the grip cover.