JP2510230Y2 - Stopper feeding structure of driving machine - Google Patents

Description

[Detailed Description of the Invention] [Field of Use of the Invention] The present invention relates to a structure of a stopper feeding portion of a driving tool for driving a connecting stopper held by a connecting belt.

[Background of the invention]

Generally, as shown in FIGS. 2 and 3, a driving machine for driving a coupling stopper held on a coupling belt includes a feed claw 4 which reciprocates to feed the stopper 2 to an injection port 3 and a feeding claw 4. There is a stopper claw 6 which holds the stopper 2 held by the connecting band 5 when the claw 4 returns so as not to return. Further, the nail guide 7 having the stopper claw 6 opens around the tail cover 8 having the feed claw 4 and the nail guide shaft 9 for loading the stopper 2. Therefore, there is a gap 10 between the nail guide 7 and the tail cover 8 for rotation. Depending on the direction in which the driving tool is used, the nail guide 7 moves axially and the gap 10 changes,
The distance between the feed claw 4 and the stopper claw 6 was changed, and the phenomenon in which the stopper 2 could not be sent to the injection port 3 occurred.

[Purpose of device]

The purpose of the present invention is to eliminate the drawbacks of the prior art and to ensure that the stop is delivered into the outlet.

[Outline of device]

The present invention focuses on the deformation of the elastic body, and by mounting the elastic body in a deformed state in the gap between the tail cover and the nail guide in the axial direction of the nail shaft, the tail cover is always urged in a constant axial direction, It is intended to position the nail guide.

[Example of device]

An embodiment of the present invention will be specifically described with reference to FIGS.

In the stopper feeding portion of the driving machine, a feeding claw 4 that reciprocates in order to feed the stopper 2 connected by the connecting band 5 to the ejection port 3, and the feeding claw 4 pulls back the stopper 2 at the time of return. There is a stopper claw 6 that holds it in place. The feed pawl 4 is located on the tail cover 8 side, reciprocates in synchronization with the driving of the stopper 2, and can rotate about a fulcrum 11, and is constantly pressed against the nail guide 7 side by a spring force. . The stopper claw 6 is located on the nail guide 7 side, can rotate about a fulcrum 12, and is constantly pressed against the tail cover 8 side by a spring force. Further, the nail guide 7 is adapted to open around the nail guide shaft 9 for loading the stopper 2.

An elastic body 13 is mounted between the tail cover 8 and the nail guide 7 in a compressed and deformed state. This elastic body
By 13, the nail guide 7 is constantly urged downward in the axial direction by the tail cover 8.

From the above structure, the tail cover 8 and the lower surface of the shaft portion of the nail guide 7 are always in contact with each other, the nail guide 7 does not move in the axial direction depending on the direction in which the driving machine is used, and the tail pawl 4 shown in FIG. The axial distance of the stopper claw 6 is kept constant.

[Effect of device]

According to the present invention, the tail cover and the nail guide are mounted in a state where the elastic body is deformed in the gap between the nail shaft of the nail and the nail shaft in the axial direction. Since the axial distance of can be kept constant, defective feeding of the fastener can be prevented.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the driving tool of the present invention, FIG. 2 is a side view showing an example of a conventional driving machine, and FIG. 3 is a view taken in the direction of the arrow of FIG. In the figure, 1 is a driving tool body, 4 is a feed claw, 6 is a stopper claw, 7 is a nail guide, 8 is a tail cover, and 13 is an elastic body.

Claims (1)

(57) [Scope of utility model registration request] 1. A feed pawl that reciprocates to drive a coupling stopper held by a coupling belt and feed the stopper to an ejection port, and to prevent the stopper from returning when the feeding pawl returns. A nail guide having stopper claws for pressing and a nail guide having the stopper claws has a structure capable of opening a tail cover having the feed claws for loading the stopper and a nail guide shaft as an axis. In, an elastic body is provided in a gap between the nail guide and the tail cover in the axial direction of the nail guide, and the nail guide is biased in a certain direction so that the distance between the feed pawl and the stopper pawl is always constant. A fastener feeding structure for a driving tool characterized by keeping.