JPH0753900Y2 - Magazine device for nailer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine device for a nailing machine for accommodating connecting nails wound in a coil shape and having different connecting manners and sequentially sending them to a nail driving section.

[0002]

2. Description of the Related Art A nail used in a nailing machine for automatically driving a nail by compressed air is a connecting nail in which a large number of nails are connected to each other in order to sequentially supply the nails to the driving portion of the nailing machine. Is used. As a connection mode of nails, a wire connection nail is known in which a metal wire is welded to the shaft of the nail to be connected, and this is wound into a coil shape. Since this wire-connected nail is wound in such a manner that the wound nail head overlaps with the underside of the nail head on the inner peripheral side, the head of the nail near the winding core rises upward to form a mountain-shaped coil. It is wound into a shape, and the magazine that accommodates it has an upper wall portion that covers the top of the nail head and is formed in a substantially conical shape. Then, in order to prevent the nails housed in the magazine from swinging in the vertical direction and the nail shafts to be entangled with the connecting wire, and to prevent the unraveling of the connecting nails in the magazine, A nail retainer plate having a spring property for pressing the head portion of the outer peripheral side nail of the wire connecting nail from the inner surface of the upper portion is provided.

As another mode of the connecting nail, a sheet connecting nail in which a plurality of nails are connected by holding a nail shaft in tabs formed by bending along the upper and lower edges of a long plastic sheet and wound in a coil shape is also available. Are known. This sheet connecting nail is wound in a coil shape with the flat upper surface with each nail being arranged at the same height from the inner circumference side to the outer circumference side of the winding. Since the magazine which accommodates the winding nail is easily deformed by an external force, the magazine has a flat cylindrical upper surface.

[0004]

When the winding nails of these two connection modes are used in the nail driving machine, the inner wall of the upper wall of the magazine is formed into a conical shape so that the former wire connection nail can be accommodated. A magazine is required, and a nail holding plate is required to prevent the wire connecting nails from unraveling and swinging in the vertical direction. When the latter sheet connecting nail is accommodated in this magazine, the nail holding plate extending from the inner surface of the upper wall of the magazine engages with the nail head on the outer peripheral side of the sheet connecting nail to elastically connect the connecting nail. When the pressing nail is pressed to deform the connecting sheet supporting the nail to separate the nail from the connecting sheet or prevent the connecting nail from being pulled out from the magazine, defective supply of the nail occurs.

The present invention is capable of accommodating both types of nails, that is, wire-type nails that are connected and wound by a wire and sheet-type nails that are connected and wound by a plastic sheet. It is an object of the present invention to provide a nailing machine magazine that can reliably supply the nailing portion without entanglement of the nail shafts or deformation of the connecting sheet.

[0006]

In order to solve the above-mentioned problems, the present invention is a magazine for accommodating coiled connection nails which are continuously supplied to a nail driving portion of a nail driving machine. The magazine has a bottom wall portion that supports the tip of the connecting nail, a substantially cylindrical peripheral wall portion that covers the side surface of the connecting nail, and a frustoconical shape in which the central portion bulges upward and the connecting nail is formed. Of the upper wall of the upper wall, one end of which is fixed to the flat top portion of the upper wall and the other end of which extends into the magazine. The peripheral wall portion is provided with a locking projection that engages and supports the nail holding plate at a position retracted from the magazine along the upper wall surface and is movable in a direction to disengage the engaged state. It is characterized by.

[0007]

By operating the nail pressing plate formed on the upper wall of the magazine to move it to the inoperative position, the nail pressing plate can be engaged with the locking projection and held at the inoperative position. Also, by operating the locking projections, the inactive position holding state of the nail pressing plate can be released, and the nail pressing plate engages with the connecting nail when the sheet connecting nail is used with the nail pressing plate held in the inactive position. Does not happen.

[0008]

[Effect of the Invention] Since the spring type nail holding plate formed so as to advance into the magazine can be locked in the inoperative position, a pressing force is applied to the connecting sheet when the sheet connecting nail is used. Nail supply failure of sheet connecting nails does not occur because it is not given, and when using wire connecting nails, the locking projection can be moved to release the nail pressing plate to the operating position, and entanglement of the connecting nails in the magazine can be prevented. The use of the connecting nails of both modes is possible.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 is a magazine that accommodates the connecting nail N wound in a coil shape, and the magazine 1 is a magazine body 2 that is attached and fixed to a nailing machine and a magazine cover that is openably and closably attached to the magazine body 2. 3 and 3. The magazine body 2 has a bottom wall 4 for supporting the tip end of the nail shaft of the connecting nail N and an outer peripheral edge of the bottom 4 so as to form a part of a cylindrical peripheral wall for supporting the outer circumference of the wound connecting nail N. A support post 6 is formed at the center of the bottom wall 4 for supporting the winding center of the connecting nail housed in the magazine. A nail support 7 for directly supporting the tip of the nail shaft of the connecting nail N is attached to the support post 6, and the nail support 7 is mounted on the magazine 1.
The position is supported along the support post 6 so that the height position of the nail head is fixed according to the length of the connecting nail N accommodated therein.

The magazine cover 3 is continuous with a peripheral wall portion 8 which forms the remaining cylindrical peripheral wall of the peripheral wall portion 5 of the magazine body 2 and an upper wall portion 9 which is continuous with the upper end of the peripheral wall portion 8 and covers the connecting nail N above. And a bearing part (not shown) formed on a part of the peripheral wall part 8 of the magazine body 2 by a part of the peripheral wall part 8.
It is supported so as to be openable and closable by means such as a pin via. The upper wall portion 9 of the magazine cover 3 is formed in a substantially frustoconical shape in which the central portion bulges upward, and extends from the flat top portion 9a of the upper wall portion 9 to the peripheral wall portion 8 in the radial direction. The opening 10 is formed.

A nail holding plate 11 is formed integrally with the magazine cover 3 so that one end thereof is continuous with the flat top portion 9a of the magazine cover 3 and the other end thereof advances toward the inside of the magazine 1 in an inclined manner. The nail holding plate 11 has elasticity and is normally arranged at the working position where it has advanced into the magazine 1. The nail holding plate 11 is elastically engaged with the nail head of the wire-coupled connecting nail N housed in the magazine 1 to make the connection. The nail is prevented from swinging upward in the magazine 1 and the entanglement of the nail shaft with the connecting wire is prevented. Further, the other end portion 11a of the nail holding plate 11 can be elastically deformed between the working position which has advanced into the magazine 1 and the non-working position which is almost housed in the opening 10.

A peripheral wall portion 8 of the magazine cover 3 facing the opening portion 10 is formed in a rectangular tube shape 12 which bulges outward in the radial direction, and a part of the outer wall 13 of the rectangular tube 12 is formed on both sides. Is formed as a tongue-shaped piece 15 separated from the outer wall by the slit 14, and a locking projection 16 for supporting the nail pressing plate 11 in the inoperative position is formed inside the tongue-shaped piece 15. A bulging portion 16a bulging upward is formed at the front end of the upper surface of the locking projection 16 and the end portion 1 of the nail holding plate 11 is formed.
The locked state with 1a is stabilized. Further, an inclined surface 16b that engages with the edge of the nail pressing plate 11 is formed on the lower surface of the locking projection 16.

The tongue-shaped piece 15 is integrally formed of plastic or the like that constitutes the magazine cover 3 and has a spring property. Since the tongue-shaped piece 15 engages and supports the nail holding plate 11, it can be elastically deformed outward. . Further, an operating portion 15a is formed at the upper end, which is capable of deforming the tongue-shaped piece 15 in order to move the locking projection 16 outward in order to release the nail holding plate 11 held in the inoperative position. There is.

In the above embodiment, the nail holding plate 11 and the tongue-shaped piece 15 are integrally formed with the magazine cover 3 by a plastic material, but the magazine cover is made of a plastic material or a metal material having a spring property. It may be formed separately from 3, and may be attached by a well-known fixing means or the like.

In the above embodiment, when the wire connecting nail N is used as shown in FIG. 1, the nail holding plate 11 is released from the locking projection 16 of the tongue-shaped piece 15 and is used at the working position. To do. When the wire connecting nail N is loaded into the magazine main body 2 and the magazine cover 3 is closed, the lower surface of the nail pressing plate 11 elastically engages with the outermost peripheral side connecting nail head of the connecting nail N so that the connecting nail N is connected. Acts to press the nail support 7 against,
As a result, the connecting nail N can be prevented from swinging upward in the magazine 1 or being unwound in the wound state, and the tip of the nail shaft is entangled with the connecting wire or the overlapping state of the nail heads is reversed to feed the nail. Defects can be prevented. The nail head is smoothly guided to the lower surface side of the nail retainer plate 11 by the guide wall 11b formed on one side of the nail retainer plate 11, so that the side edge of the nail retainer plate 11 is engaged with the nail head to cause a feed failure. Can be prevented.

Next, as shown in FIG. 2, when the sheet connecting nail is used, the nail holding plate 1 is inserted from the inside of the magazine cover 3.
The end portion 11a of the nail holding plate 11 is engaged with the locking projection 16 of the tongue-shaped piece 15 by pressing 1 toward the inside of the opening 10.
By this operation, the end portion 11a of the nail pressing plate 11 engages with the inclined surface 16b of the lower surface of the engaging projection 16 to elastically deform the tongue-shaped piece 15 outwardly and the end portion 11a of the nail pressing plate 11 is locked. It is arranged above the projection 16 and engaged. Nail plate 11
Is maintained in the non-acting position housed in the opening 10, so that it does not act on the sheet connecting nail N housed in the magazine 1 at all, and therefore the sheet connecting nail N is delivered from the magazine 1 without any problem. .

When the wire connecting nail is used again, the operation portion 15a at the upper end of the tongue-shaped piece 15 is pushed outward to disengage the locking projection 16 from the end portion 11a of the nail holding plate 11. As a result, the nail holding plate 11 is elastically arranged at the working position where it has advanced into the magazine 1, and the wire connecting nail can be used. Incidentally. When the connecting nails of the same connecting mode are continuously used, the magazine cover is opened and closed each time the connecting nail is loaded, but the nail holding plate 11 and the locking projections 16 for holding the nail holding plate 11 in the inoperative position are both magazines. Since the cover 3 is formed, the locked state is maintained even when the nail 1 is loaded into the magazine 1, so that it is not necessary to re-operate each time the nail is loaded.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state in which a wire connecting nail of a magazine according to an embodiment of the present invention is loaded.

FIG. 2 is a cross-sectional view showing a state in which sheet connecting nails of the same magazine as in FIG. 1 are loaded.

FIG. 3 is a perspective view showing a magazine cover of a magazine according to an embodiment of the present invention.

[Explanation of symbols]

 1 Magazine 2 Magazine Main Body 3 Magazine Cover 4 Bottom Wall 5 Peripheral Wall 8 Peripheral Wall 9 Upper Wall 9a Top 10 Opening 11 Nail Press Plate 15 Tongue-shaped Piece 15a Operation Part 16 Locking Protrusion 16a Swelling Part 16b Inclined Surface

Claims (1)

[Scope of utility model registration request] 1. A magazine for accommodating coiled connecting nails, which are continuously supplied to a nailing portion of a nailing machine, wherein the magazine supports a bottom wall portion for supporting a tip of a shaft of the connecting nail. And a substantially cylindrical peripheral wall portion that covers the side surface portion of the connecting nail and a central wall that is formed in a frustoconical shape that bulges upward, and that is configured by an upper wall portion that covers the upper portion of the head portion of the connecting nail, The upper wall portion is provided with a nail holding plate having a spring property, one end of which is fixed to the top flat portion of the upper wall portion and the other end of which is advanced toward the inside of the magazine, and the nail holding plate is placed on the peripheral wall portion. A magazine device for a nailing machine, characterized in that an engaging projection is formed along a wall surface at a position retracted from the magazine, and a locking projection movable in a direction to release the engaged state is formed.