JPH0563776U - Nail supply guide device for nailer - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The slide plate does not move in the direction in which the width of the nail supply path widens due to the impact of the nailing machine at the time of nailing, making it easy to set the position of the slide plate. Of a nail supply guide device for a nailing machine. [Structure] A slide plate 11 having guide pins 15 planted on the rear side is arranged on the side of the door member 9 facing the nail supply path 4, and a guide long in the nail supply direction is formed by penetrating the guide pins 15 in the door member 9. 17 and the slide plate 11 is supported movably with respect to the door member 9 in the direction toward the nail supply path 4 and in the direction parallel to the nail supply direction, and the slide plate 11 is provided in front of and behind the nail supply direction with the guide pin 15 interposed therebetween. The rear surface is formed with contact portions 16 and 16 'for contacting the inner surface of the door member 9,
The support portions 21 and 22 on the inner surface support the contact portions 16 and 16 'at different heights displaced in the nail supply direction, and the spring 19 biases the slide plate 11 away from the nail supply passage 4. , The guide pin 15 exposed on the back side of the door member 9
The operation portion 20 was formed at the end of the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, the width of the nail supply path for supplying and guiding the connecting nail to the nose portion of the nailing machine can be variably set according to the connecting manner of the connecting nail to guide and supply the connecting nail of different connecting manners. The present invention relates to a supply guide device.

[0002]

[Prior art]

 The connection mode of the connection nails used in this type of nailing machine is the wire connection method in which the shaft of the nail is welded and connected to a thin wire, and it is formed by bending along the upper and lower edges of a long plastic sheet. There is a sheet connection method in which a tab holds a nail shaft for connection. Since these two types of connecting nails have different sizes in the width direction, a nail supply guide device is known in which the width of the nail supply path of the nailing machine can be changed so that both types of connecting nails can be used.

For example, in the mechanism shown in Japanese Utility Model Laid-Open No. 2-7978, a slide plate that is movable in the nail supply path direction is arranged inside a door member that constitutes one wall of the nail supply path. The plate is spring-biased in the direction of the nail supply path, and the guide pin planted on the rear surface of the slide plate is formed at the end of the guide pin and the rear surface of the door member by penetrating the rear surface of the door member. The engaging portion is engaged to fix the protruding position of the slide plate to the nail supply passage to form the nail supply passage.

In such a configuration, the slide plate moves in the direction away from the nail supply path against the spring biasing force due to the impact of the nail driving machine at the time of driving the nail, which causes the width of the nail supply path. Is enlarged and the connecting nail supplied in the passage cannot engage with the nail feeding nail for feeding the nail, or is separated from the check claw that prevents the connecting nail from retracting when the nail feeding nail retracts. As a result, the nails would be retracted, and the nails would not be fed to the nose portion, causing a blanking phenomenon. In addition, if the gap between the nail feed paths is expanded when the nail feed claw retracts and engages with the second nail of the connecting nail, the gap between the nail shaft and the nail feed claw is widened, and the nail feed claw is opened. There was a phenomenon of double-feeding in which the first nail and the second nail were supplied to the nose part by engaging with the third nail shaft of the connecting nail.

Further, if the spring force of the slide plate is increased, the movement of the slide plate can be prevented, but when the slide plate setting position is changed, the slide plate must be operated against this spring force, and a strong force is required. There is a problem that setting operation is difficult.

[0006]

[Problems to be solved by the device]

 The present invention solves the above problems, and the slide plate does not move in the direction in which the width of the nail supply path widens due to the impact of the nailing machine at the time of nailing, thus facilitating the position setting operation of the slide plate. It is an object of the present invention to provide a nail supply guide device for a nailing machine, which can be carried out and uses connecting nails of different connection modes.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the nail supply guide device of the present invention is a slide in which a guide pin is planted on the back side of the door member that constitutes one of the guide walls of the nail supply path, facing the nail supply path. A plate is arranged, and the guide pin of the slide plate is inserted into a long guide hole formed in the door member in the nail supply direction so that the slide plate faces the door member toward the nail supply path and parallel to the nail supply direction. The slide plate is supported movably in various directions, and contact portions that come into contact with the inner surface of the door member are formed on the front and rear rear surfaces of the slide plate in the nail supply direction, and the slide member is formed on the inner surface of the door member. A support part is formed for each contact part to support each contact part of the plate at different heights which are displaced in the nail supply direction, and the slide plate is provided at the end of the guide pin and the rear surface of the door member. Intervening And spring-loaded in the direction away from the nail supplying path by a spring, is characterized in that the formation of the operating portion at an end portion of the guide pin to expose the back side of the door member.

[0008]

[Action]

 Since the slide plate is positioned by the abutting portion formed on the back side thereof in a state of abutting against the abutting portion formed on the inner surface of the door member, the nail is supplied even when the nailing impact of the nailing machine is applied. Since it cannot move in the direction of retracting from the road, it is possible to prevent the connecting nail from swinging in the nail supply path.

[0009]

[Effect of the device]

 Since the back surface of the slide plate is configured to contact the inner surface of the door member to set the position, the slide plate can move in the direction of widening the width of the nail supply path due to the impact of the nailing machine when nailing. Since there is no such phenomenon, the phenomenon that the connecting nail in the nail supply path cannot be engaged with the nail feeding pawl or the non-return pawl can be prevented, and idling and idling can be prevented. It is possible to prevent double feed that occurs when engaging with the nail. Furthermore, the spring force of the biasing spring acting on the slide plate can be reduced, and the position setting operation of the slide plate can be performed with a simple and easy operation by simply pushing in and sliding the operation part exposed on the back side of the door member. You can do it.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a nose portion formed with an injection opening 2 for receiving the head nail of the connection nail N so that it can be driven by a hitting driver (not shown). The connection nail receiving opening formed on the side surface of the injection opening 2 of the nose portion 1. A fixed guide wall 5, which forms a guide wall on one side of the nail supply path 4 of the connecting nail, is formed integrally with one side edge of the portion 3. A window hole 6 is formed by lacking a part of the fixed guide wall 5 close to the injection port 2, and a nail feed claw 8 of a nail supply mechanism 7 arranged outside the fixed guide wall 5 from the window hole 6. Has advanced into the nail supply path 4. The nail feed claw 8 is reciprocally driven by the supply mechanism 7 along the nail supply path, and thereby engages with the connecting nail N in the nail supply path 4 to move the connecting nail into the injection port 2 of the nose part 1. Supply in sequence.

The door member 9 forming the other guide wall of the nail supply path 4 is openably and closably supported by the nose portion 1 at its front end portion, and is attached to the nose portion 1 by a latch mechanism or the like (not shown). On the other hand, the fixed guide wall 5 is locked at a closed position at a predetermined distance. On the side of the door member 9 facing the nail supply path 4, there is formed a recess 10 elongated along the nail supply direction, and the outer surface of the door member 9 constitutes a guide wall of the nail supply path. The slide plate 11 is arranged. The nail guide surface 12 of the slide plate 11 is aligned with the injection port 2 of the nose part 1 at the front end part and is guided in the injection port 2 to guide the nail and the trailing part of the connecting nail N at the rear end part. A guide surface 14 is formed which is inclined outward to guide the inside of the nail supply path 4.

On the back side of the slide plate 11, a guide pin 15 having a tip extending in the back direction is planted at a substantially central portion thereof, and the guide pin 15 is further sandwiched along the nail supply path 4. Abutting portions 16 and 16 'that come into contact with the door member 9 toward the back side are formed in the front and rear of the nail supply direction. The recess 10 of the door member 9 is formed with a through hole 17 penetrating to the back side of the door member 9 and elongated along the longitudinal direction of the recess 10, and the guide pin 15 of the slide plate 11 is The end portion 15 ′ is arranged on the rear surface side of the door member 9 by penetrating this. A spring seat plate 18 having a recess 18 'for accommodating a spring formed in the central portion from the rear end portion 15' of the guide pin 15 and a compression spring 19 are inserted therethrough, and a knob serving as an operating portion is provided at the end portion 15 '. 20 is attached. As a result, the slide plate 11 is movably supported by the door member 9 in the recess 10 in a direction toward the nail supply path 4 and a direction along the nail supply direction.

In the recess 10 of the door member 9, the nails of the slide plate 11 are supported by supporting the contact portions 16 and 16 ′ corresponding to the contact portions 16 and 16 ′ formed on the back surface of the slide plate 11. Support portions 21 and 22 for positioning the guide surface 12 at a predetermined position are formed. When the slide plate 11 is arranged on the front side in the concave portion 10 of the door member 9 in the nail supply direction, the support portions 21 and 22 connect the nail guide surface 12 of the slide plate 11 to the fixed guide wall 5 with the wire connecting nail. Support portions 21a, 22a having a high height for supporting the approaching position corresponding to the width dimension of the sheet, and the slide plate 11 is displaced to the rear side from the support portions 21a, 22a in the nail feeding direction to the width dimension of the sheet connecting nail. It is composed of supporting portions 21b and 22b having a low height for supporting the corresponding separating positions, and the contact portions 16 and 16 'of the slide plate 11 are selectively attached to the supporting portions 21a, 22a and 21b22b. The position of the slide plate 11 can be variably set by engaging and supporting the slide plate 11.

One of the abutting portions 16 ′ of the abutting portions of the slide plate 11 is formed in a protruding shape that bulges to the back side, and the support on the door member side corresponding to the abutting portion 16 ′ is provided. The portions 22a and 22b are formed in a concave shape for accommodating the tip portion of the contact portion 16 '. As a result, the slide plate 11 is held by the urging force of the compression spring 19 in the recess-shaped support portion 22a or 22b via the contact portion 16 'and does not move back and forth, and the set state is reliably maintained. ..

When using the wire connecting nail having a small width, the nail supply guide device having the above-described configuration operates the knob 20 exposed on the back side of the door member 9 while pressing the knob 20 toward the nail supply path. Perform the operation of sliding it to the front side in the nail supply direction. By this operation, the slide plate 11 is moved in the direction of the nail supply path 4 against the urging force of the compression spring 19 so that the projection-shaped contact portion 16 'is disengaged from the recess-shaped locking portion 22b and the nail supply is performed. It is moved to the front side in the direction. After that, when the knob 20 is released, the slide plate 11 is moved in the rearward direction by the repulsive force of the compression spring 19 so that the abutting portions 16 and 16 'support the support portions 21 and 22 of the door member 9 on the front side in the inner nail supply direction. The parts 21a and 22a are brought into contact with and supported. As a result, the nail guide surface 12 of the slide plate 11 is positioned at a position corresponding to the width dimension of the wire connecting nail.

When the sheet connecting nail is used from the above setting state, the knob 20 is moved to the rear side in the nail supply direction while pressing the knob 20 again in the nail supply path 4 direction, and then the knob 20 is released. Thus, the nail guide surface 12 of the slide plate 11 is positioned at the retracted position where the nail guide surface 12 is retracted into the recess 12 of the door member 9. In this state, the nail guide surface 12 of the slide plate 11 supports and guides the back surface of the connecting sheet having a U-shaped cross section. The lower portion of the recessed portion 10 of the door member 9 guides the nail shaft portion in any of the connecting nails of both connection modes, and does not need to change the width.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing a state in which a sheet connecting nail according to an embodiment of the present invention is used.

FIG. 2 is a cross-sectional plan view showing a state in which a wire connection nail similar to that in FIG. 1 is used.

FIG. 3 is a perspective view showing a main part of the same embodiment as FIG.

[Explanation of symbols]

 1 Nose part 4 Nail supply path 5 Fixed guide wall 9 Door member 10 Recessed portion 11 Slide plate 12 Nail guide surface 15 Guide pin 16, 16 'Contact part 17 Through hole 18 Spring seat plate 19 Compression spring 20 Operation part (knob) 21,22 Support

Claims (1)

[Scope of utility model registration request] 1. A nailing machine using a connecting nail in which a large number of nails are connected by a connecting member, which has an injection port for receiving the leading nail of the connecting nail and driving the nail into a workpiece. A nose portion, a fixed guide wall that is integrally formed with one side edge of a nail receiving opening formed in the nose portion and guides one side surface of the connecting nail, and faces the fixed guide wall at a predetermined interval. And a nail member having a door member openably and closably supported by the nose portion, and a nail supply path formed between the door member and the fixed guide wall to supply the connecting nail to the nose portion. A slide plate having guide pins planted on the back side is arranged on the side of the door member facing the nail supply path, and the guide pin of the slide plate is formed in a long guide hole in the nail supply direction formed through the door member. Slide through the slide The door member to the door member so as to be movable in a direction toward the nail supply path and in a direction parallel to the nail supply direction, and the inner surface of the door member is provided on the back surface before and after the nail supply direction sandwiching the guide pin of the slide plate. A contact portion is formed to abut, and a support portion for supporting each contact portion of the slide plate at different heights displaced in the nail supply direction is formed on the inner surface of the door member for each contact portion. The slide plate is urged by a spring interposed between the end of the guide pin and the back surface of the door member in a direction away from the nail supply path, and is exposed to the end of the guide pin exposed on the back side of the door member. A nail supply device for a nailing machine, characterized in that an operating portion is formed.