Nail gun and safety device of the same
A nail gun includes a housing, a safety device, a gun barrel, a supporting part, a block, a nosepiece, a linkage, a contacting part, a protrusion, a front linking part, a rear linking part and an arm. The safety device is arranged on the housing. The gun barrel is located at the front end of the housing. The supporting part is arranged inside the housing and has an elastic element. The block is disposed on the gun barrel. The nosepiece and the linkage are slidably arranged on the gun barrel. The contacting part is located at the front end of the nosepiece. The protrusion is applied to against the block. The front linking part is located at the rear end of the nosepiece. The rear linking part detachably connects the front linking part. The arm is located at the rear end of the linkage and against the elastic element.
1. A nail gun comprising:
a gun barrel located at a front end of a housing and extending in an axial direction;
a supporting part arranged inside the housing;
an elastic element disposed forwardly of and in abutment with the supporting part in the housing;
a block disposed on the gun barrel;
a nosepiece slidably and detachably arranged on the gun barrel in the axial direction and terminating at opposite front and rear ends in the axial direction, including
a contacting part which is located at the front end of the nosepiece,
a protrusion which is disposed offset from an axis of the gun barrel and adjacent to the rear end of the nosepiece, which is disposed behind the block relative to the front end, and which is slidable relative to the block in the axial direction between operating and non-operating positions, where the protrusion is disengaged from and engaged with the block, respectively, and
a rearward linking part which is located at the rear end of the nosepiece; and
a linkage arranged on the gun barrel and disposed to be movable with the nosepiece in the axial direction, including
a forward linking part configured to permit the rearward linking part to be detachably engaged therein and rotatable thereto about the axis and liftable therefrom, and
an arm disposed to extend from an end of the forward linking part rearward to terminate at an abutment end which is disposed forwardly of and biased by the elastic element to move the protrusion toward the non-operating position, such that as a result of the nosepiece being manually pushed against the biasing force of the elastic element, the protrusion is disengaged from the block so as to permit the protrusion to be turned about the axis thereby enabling the detachment of the rearward linking part from the forward linking part.
2. The nail gun of claim 1 , wherein the rearward linking part is a pin, and the forward linking part is a recess seat having a recess therein.
3. The nail gun of claim 2 , wherein the recess seat has an adjustable threaded fastener connecting the recess seat to the linkage.
4. The nail gun of claim 1 , wherein the rearward linking part is a recess seat having a recess therein, and the forward linking part is a pin.
5. The nail gun of claim 4 , wherein the recess seat has an adjustable threaded fastener connecting the recess seat to the linkage.
6. The nail gun of claim 1 , further comprising:
a combustion chamber inside the housing and connected to the gun barrel via a cylinder of the nail gun;
at least one safety exhaust passage connected to the combustion chamber; and
a sleeve movably connected to the combustion chamber for selectively opening and closing the safety exhaust passage.
7. The nail gun of claim 6 , wherein the linkage is connected to the sleeve.
8. The nail gun of claim 1 , wherein the block comprises:
a spring-loaded button slidably protruding from the gun barrel.
9. The nail gun of claim 1 , wherein the block is made of a flexible material.
10. The nail gun of claim 1 , further comprising a holding piece located at the lateral side of the nosepiece for holding the gun barrel.
11. The nail gun of claim 10 , further comprising a sliding block located at one end of the holding piece, wherein the gun barrel has a chute therein, and the sliding block is slidably coupled to the chute of the gun barrel.
12. The nail gun of claim 1 , further comprising:
a U-shaped breach in the gun barrel; and
a neck connected to the nosepiece and slidably coupled to the U-shaped breach.
13. The nail gun of claim 1 , further comprising:
a connecting tube connected to the nosepiece and inserted into the track of the gun barrel.
14. A nail gun comprising:
a gun barrel located at a front end of a housing;
a supporting part arranged inside the housing;
an elastic element disposed forwardly of and in abutment with the supporting part in the housing;
a block disposed on the gun barrel;
a nosepiece slidably and detachably arranged on the gun barrel in the axial direction and terminating at opposite front and rear ends in the axial direction, including
a contacting part which is located at the front end of the nosepiece; and
a protrusion which is disposed offset from an axis of the gun barrel and adjacent to the rear end of the nosepiece, which is disposed behind the block relative to the front end, and which is slidable relative to the block in the axial direction between operating and non-operating positions, where the protrusion is disengaged from and engaged with the block, respectively, against the block;
a linkage arranged on the gun barrel, disposed to be movable with the nosepiece in the axial direction, and configured to permit the nosepiece to be detachably engaged therein and rotatable thereto about the axis, the linkage including:
an arm disposed to extend from an end of the linkage to terminate at an abutment end which is disposed forwardly of and biased by the elastic element to move the protrusion toward the non-operating position, such that as a result of the nosepiece being manually pushed against the biasing force of the elastic element, the protrusion is disengaged from the block so as to permit the protrusion to be turned about the axis thereby enabling the detachment of the nosepiece from the linkage.