GB2513396A

GB2513396A - Muzzle structure for a nail gun

Info

Publication number: GB2513396A
Application number: GB1307531.2A
Authority: GB
Inventors: Ken Chen
Original assignee: RUEIKAI PREC TECH CORP
Current assignee: RUEIKAI PREC TECH CORP
Priority date: 2013-04-26
Filing date: 2013-04-26
Publication date: 2014-10-29
Also published as: GB201307531D0

Abstract

A muzzle for a nail gun magazine 50 comprising a base 30 with a cover 40 selectively attached to it. The cover forms a nail guide surface 42 including a groove 43 and a separate concave portion 44 formed by two intersecting surfaces. One of the surfaces 441 is for the flat portion of a T shaped nail 20 to abut, ie surface 441 is in use parallel to the head and shaft of the T. The other surface 442 is for one end of the head of the T shaped nail to abut. The surface, groove and concave region of the cover may be disposed between opposed end surfaces 45, 46 of the cover. The two surfaces forming the concave portion are ideally perpendicular.

Description

MUZZLE STRUCTURE FOR A NAIL GUN

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a nail gun, and more particularly to S a muzzle structure for a nail gun.

Description of the Prior Art

Fig. 1 is a cross sectional view showing a muzzle of a conventional nail gun, wherein the muzzle comprises a muzzle base Ii and a cover 12 removably mounted on the cover 12. The cover 12 is provided with a nail-guide surface 122 for guiding a piston rod (not shown) and the nails 13.

The nail-guide surface 122 is located toward the muzzle base 11 and formed with a track 121 with respect to the muzzle base 11. In the nail-guide surface 122 is ftirther formed a piston-rod guide groove 123 for guiding movement of the piston rod, so that the piston rod is able to move simultaneously in the piston-rod guide groove 123 and the track 121 to push the nails to move in the track 121.

The track 12 I which is formed at'ter the cover 12 is assenibled to the nrnzzle base 11 is capable of holding U-shaped and T-shaped nails 13, as shown in Figs. 1 and 2. The T-shaped nails 13 are likely to deviate from their intended positions when they are received in the track 121 and hit by the piston rod due to the fact that the I-shaped nails 13 are smaller than the U-shaped nails 13, the T-shaped nails 13 only lean against the nail-guide surface 122, and there is no other nail guide structure.

The present invention has arisen to mitigate and!or obviate the afore-described disadvantages.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a muzzle structure for a nail gun, wherein the cover of the muzzle structure is formed with a nail-guide concave portion to restrict and guide the movement of the T-shaped nails received in the nail track of the muzzle structure.

Therefore, the T-shaped nails can be stably pushed out by moving along the nail-guide concave portion when hit by the piston rod, preventing deviation of the T-shaped nails.

To achieve the above objective, a muzzle structure for a nail gun in accordance with the present invention is adapted for a I-shaped nail with a head portion and a shaft perpendicular to the head portion, the muzzle structure comprises: a base and a covet The cover is removably assembled to the base and includes a nail-guide surface which defines a nail track with respect to the base, a nail-guide groove formed in the nail-guide surface, and a nail-guide concave portion formed in the nail-guide surface and located adjacent to the nail-guide groove. The nail-guide concave portion includes a bottom against which a top surface of the head portion and an end surface of the shaft lean, and a lateral surthce connected to the bottom to allow a lateral surface of the head portion to lean agaiist the lateral surface.

Preferably, the cover is provided along a nailing direction with a first end surface and a second end surface, and the nail-guide surface, the nail-guide groove, and the bottom and the lateral surface of the nail-guide concave portion are located between the first and second end surfaces.

Preferably, the lateral surface of the nail-guide concave portion is perpendicular to the bottom of the nail-guide concave portion.

S BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a cross sectional view of a muzzle of a conventional nail gun adapted for both U-shaped and T-shaped nails; Fig. 2 is an operational view of the muzzle of the conventional nail gun adapted both for U-shaped and T-shaped nails. wherein the T-shaped nail is deviated from its intended position when hit by the piston rod; Fig. 3 is an exploded view of a muzzle structure for a nail gun in accordance with the present invention; Fig. 4 is an assembly view of the muzzle structure for a nail gun in accordance with the present invention; Fig. 5 is a cross section view of the muzzle structure for a nail gun in accordance with the present invention; and Fig. 6 is a side view showing that the T-shaped nail is received in the nail-guide concave portion of the cover of the muzzle structure for a nail gun in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with tile present invention.

Referring to Figs. 3-6, a muzzle structure for a naii gun in accordance with the present invention is adapted for one type of nails. In this embodiment, the nails in this embodiment are I-shaped naiis 20 which are connected together to form a nail strip and each inciudes a head portion 21 and a shaft 22 perpendicular to the head portion 21. The muzzle structure includes a base 30 and a cover 40.

The base 30 is fixed to a nail magazine 50 and includes two hooks 31 and a guide slot 32 between the two hooks 31. Since the base 30 of the nmzzle is of a conventional structure, fhrther descriptions would be omitted.

The cover 40 is removably assembled to the base 30 and includes a nail-guide surface 42 which defines a nail track 41 with respect to the base 30, a nail-guide groove 43 formed in the nail-guide surface 42, and a nail-guide concave portion 44 formed in the nail-guide surface 42 and IS located adjacent to the nail-guide groove 43. The nail-guide concave portion 44 includes a bottom 441 against which a top surface 211 of the head portion 21 and an end surface 22 I of the shaft 22 lean, and a lateral surface 442 connected to the bottom 411 to allow a lateral surface 212 of the head portion 21 to lean against the lateral surface 422. Tn this embodiment, the cover 40 is provided along a nailing direction X (the direction that the nails are driven to move) with a first end surface 45 and a second end surface 46.

The nail-guide surface 42, the nail-guide groove 43, and the bottom 441 and the lateral surface 442 of the nail-guide concave portion 44 are located between the first and second end surfaces 45, 46, and the lateral surface 442 of the nail-guide concave portion 44 is perpendicular to the bottom 441 of the nail-guide concave portion 44.

Since the method for removably assembling the cover 40 to the S base 30 by using quick-release means or screws is the same as the conventional method, further descriptions would seem unnecessary.

Since the cover 40 is provided with a nail-guide concave portion 44 for the T-shaped nails 20 to lean against, and tile nail-guide concave portion 44 is provided with the bottom 441 for the top surface 211 of the head portion 21 and the end surface 221 of the shafi 22 to lean against, and the lateral surface 442 for the lateral surface 212 of the head portion 21 to lean against, the I-shaped nails 20 will be restricted and guided by the nail-guide concave portion 44 when received in the nail track 41. When hit by the piston rod, the I-shaped nails 20 can be stably pushed out by moving along IS the nail-guide concave portion 44, preventing deviation of the T-shaped nails 20.

While we have shown and described various enibodinients in accordance with the present invention, it is clear to those skilled hi the art that fttrther embodiments may be made without departing from the scope of the present invention.

Claims

WHAT IS CLAIMED IS: 1. A muzzle structure for a nail gun adapted for a T-shaped nail with a head portion and a shaft perpendicular to the head portion, the muzzle structure comprising: a base; and a cover removably assembled to the base and including a nail-guide surface defining a nail track with respect to the base, a nail-guide groove formed in the nail-guide surface, and a nail-guide concave portion formed in the nail-guide surface and located adjacent to the nail-guide groove, the nail-guide concave portion including a bottom against which a top surface of the head portion and an end surface of the shaft lean, and a lateral surface connected to the bottom to allow a lateral surface of the head portion to lean against the lateral surface.
2. The muzzle structure for the nail gun as claimed in claim 1, IS wherein the cover is provided along a nailing direction with a first end surface and a second end surface, and the nail-guide surface, the nail-guide groove, and the bottom and the lateral surface of the nail-guide concave portion are located between the first and second end surfaces.
3. The muzzle structure for the nail gun as claimed in claim I, wherein the lateral surface of the nail-guide concave portion is perpendicular to the bottom of the nail-guide concave portion.
4. A muzzle structure for a nail gun substantially as hereinbefore described with reference to and as shown in Figures 3 to 6 of the accompanying drawings.
5. Anail gun having a muzzle structure as claimed in any one of the preceding claims.