Compressed air gun

Patent metadata

Field	Value
Publication number	US-9511380-B2
Application number	US-201514663631-A
Country	US
Kind code	B2
Filing date	Mar 20, 2015
Priority date	Mar 31, 2014
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

The compressed air gun ( 1 ) according to the invention comprises a body ( 2 ), comprising an upstream conduit ( 20 b ) that extends along a first axis (X 20 b ) and a downstream air ejection conduit ( 20 a ), and a hole ( 22 ), which extends along a second axis (Y 22 ), a closing member ( 16 ), which is translatable inside the hole between a closed position and an open position, a trigger ( 4 ) that can be manipulated between a released configuration, where it keeps the closing member in the closed position, and a blowing configuration, and means ( 8 ) for returning the trigger to its released configuration. This gun further comprises a tubular sleeve ( 14 ), which is immobilized inside the upstream conduit ( 20 b ), which extends parallel to the first axis (X 20 b ) and which delimits an air passage, whereas the closing member ( 16 ), in the closed position, is suitable for closing off an air passage orifice by forming a sealed contact with the sleeve.

First claim

The invention claimed is:

1. A compressed air gun, comprising:
a body, comprising a compressed air passage conduit including an upstream conduit that extends along a first axis and a downstream air ejection conduit, and a hole which extends along a second axis not parallel to the first axis and which emerges in the upstream conduit,
a closing member, which is translatable, parallel to the second axis, inside the hole between a closed position, where the closing member blocks passage of air in the upstream conduit, and an open position, where the air is free to flow between the upstream conduit and the downstream conduit,
a trigger controlling the movement of the closing member, which can be manipulated between a released configuration, where the trigger keeps the closing member in the closed position, and a blowing configuration, where the closing member is in the open position,
return means for returning the trigger to the released configuration, a tubular sleeve immobilized inside the upstream conduit and extending parallel to the first axis, the tubular sleeve including two opposite orifices positioned at downstream and upstream ends of the sleeve and between which extends an air passage,
wherein the closing member, in the closed position, is suitable for closing off the orifice of the air passage at the downstream end of the sleeve by forming a sealed contact with the downstream end of the sleeve and wherein the sleeve delimits a contact surface with the closing member, which is positioned in an oblique plane relative to a plane perpendicular to the first axis and wherein the contact surface of the sleeve is an annular surface having elliptical inner and outer contours.

2. The gun according to claim 1 , wherein the sleeve and the closing member each include a beveled edge, and wherein the contact surface of the sleeve is delimited on the beveled edge of the sleeve.

3. The gun according to claim 1 , wherein the contact surface of the sleeve includes a relief, which forms a sealing surface with the closing member when the closing member is in the closed position.

4. The gun according to claim 1 ,
including a junction tail piece for connecting to a compressed air supply tube, the junction tail piece being suitable for being fastened to the body of the gun and being able to cooperate with the upstream end of the sleeve opposite the hole.

5. The gun according to claim 4 ,
including means for immobilizing the junction tail piece in the upstream conduit, which include a staple that is immobilized in a housing of the body by the return means of the trigger and which cooperates with a peripheral groove of the junction tail piece to block the sliding of the junction tail piece inside the upstream conduit.

6. The gun according to claim 1 , wherein the closing member is kept in the closed position by a push-piece of the trigger which bears against one end of the closing member opposite the upstream conduit and wherein the push-piece acts on the closing member along the second axis of the hole.

7. The gun according to preceding claim 1 , including immobilizing means for immobilizing rotation of the sleeve inside the upstream conduit, which includes a longitudinal rib supported by the sleeve and a slot for receiving the longitudinal rib arranged in the body of the gun.

8. The gun according to claim 1 , wherein the trigger includes translation means for translating the closing member toward the open position, wherein the translation means includes a base protruding from the closing member and wherein the protruding base is positioned at an end of the closing member opposite the upstream conduit and is engaged in housings defined by the trigger with axial play, measured parallel to the second axis of the hole, between the base of the closing member and contact edges of the housings.

9. The gun according to claim 1 , wherein the hole for receiving the closing member extends along the second axis which is perpendicular to the first axis of the upstream conduit.

10. The gun according to claim 1 , wherein the sleeve is made from an elastic material selected from plastic and rubber elastic materials.

Assignees

• Staubli Sa Ets

Inventors

• Tiberghien Alain-Christophe
• Chambaud Antoine

Classifications

• B05B12/002

  Manually-actuated controlling means, e.g. push buttons, levers or triggers (for single units B05B11/00) · CPC title

• B05B1/005 Primary

  Nozzles or other outlets specially adapted for discharging one or more gases · CPC title

• B05B11/00

  Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use · CPC title

• B05B12/02

  for controlling time, or sequence, of delivery · CPC title

• B05B15/061

  Operations & Transport · mapped topic