TW201442833A - Jam clearing device for electric nailgun - Google Patents

Abstract

A jam clearing device for an electric nailgun comprises an engaging block movably inserted into a frame, a driving unit mounted at the frame, and a release member movably inserted into the frame. The driving unit is used for driving positive displacement of the engaging block and links a swing arm to a second position adjacent to a flywheel, such that a striking member is swung by the flywheel to complete the nail firing operation. The release member is exerted by a force to squeeze reverse movement of the engaging block, such that the engaging block releases the swing arm back to the first position away from the flywheel. Thus, by simple touching and pressing action, the release member can be driven to disengage the striking member and the flywheel, which is simple in structure and easy-to-use and does not damage other components of the electric nailgun, making the present invention more useful.

Description

Staple removal device for electric nail gun

The present invention relates to a staple removing device, and more particularly to a staple removing device for an electric nail gun that excludes a staple state.

Referring to FIG. 1, the electric nail gun 1 of the Republic of China application No. 101110812 is taken as an example, and mainly includes a frame 10, a nozzle formed at a front end portion of the frame 10 and accommodated by a nail 21 11. A trigger unit 12, a transmission set 13, an impact group 14, and a drive unit 15 pivotally mounted to the frame 10 and capable of actuating a nailing operation through a control circuit. The transmission set 13 has a flywheel 131 pivotally mounted to the frame 10, and a motor 132 disposed at the frame 10 and driving the flywheel 131 to rotate at a high speed. The impact group 14 has a swing arm 141 pivotally disposed on the frame 10 and spaced apart from the flywheel 131, and is slid on an impact member 142 of the swing arm 141. The driving group 15 has a solenoid valve 151 disposed on the frame 10, a tilting block 152 abutting against one end of the swing arm 141, and a pivoting block 152 disposed at the frame 10 and respectively associated with the solenoid valve 151. The push block 152 forms a linked link 153.

In the normal state, the swing arm 141 will interlock the impact member 142 with the flywheel 131 to maintain a distance of about 0.5 mm. When the trigger unit 12 is pressed, the electromagnetic valve 151 will move the oblique push block 152 through the link 153. Make the slope The push block 152 is forced to squeezing the swing arm 141 toward the flywheel 131 in a direction of the slope difference, until the impact member 142 is in frictional contact with the flywheel 131, and the flywheel 131 generates a great impact on the impact member 142. The throwing force causes the impact member 142 to be thrown in an instant, and then the nail 21 is fired to complete the nailing action.

However, if the impact member 142 is stuck against the flywheel 131, the impact member 142 may block the insertion of the nail 21 into the nozzle 11 because it cannot be returned to the original position. At this time, the user must use a bar. The front end portion of the impact member 142 is inserted and struck by the nozzle 11, and the impact member 142 is knocked back toward the rear end portion of the frame 10. Since the bar is placed in the nozzle 11, it is easy to damage the inner wall of the nozzle 11 or damage the front end of the impact member 12 during the striking process, so that the uneven nozzle is not smooth. The inner wall surface of the inner wall 11 or the front end portion of the impact member 12 forms a concave or convex portion that hinders the displacement of the impact member 12, thereby affecting the smoothness of the nailing.

Accordingly, it is an object of the present invention to provide a staple removing device for an electric nail gun capable of eliminating the condition of a staple without damaging other components.

Thus, the electric nail gun has a frame, a flywheel pivotally mounted on the frame, pivoted in the frame and in a first position away from the flywheel and a second position adjacent to the flywheel a swing arm of the displacement, and an impact member of the second position of the swing arm contacting the flywheel and being thrown to complete the nailing action, the staple removing device of the present invention comprises a clamping block and a driving unit , and a release piece. The card block is displaceably placed in the frame. And having a slope that abuts one end of the swing arm. The driving unit is mounted on the frame, and the card block is positively displaced by electric power, so that the card block is interlocked with the swinging arm to be in the second position. The release member is displaceably disposed in the frame and has a passive portion formed at one end portion opposite to the card block, and an active portion formed opposite to the other end portion of the passive portion for contact pressure And the active portion is subjected to an external force, and the passive portion pushes the reverse displacement of the card block, so that the card block releases the swing arm to the first position by the change of the slope difference.

The invention has the beneficial effects that the release member can be driven to release the latching state of the impact member and the flywheel by the simple pressing action of the release member, which is simple in structure, easy to use, and does not damage the electric device. Other components of the nail gun make the invention more practical.

3‧‧‧Electric nail gun

30‧‧‧Rack

31‧‧‧ gun mouth

32‧‧‧ Pulling unit

33‧‧‧Flywheel

34‧‧‧Motor

35‧‧‧ swing arm

351‧‧‧ shaft parts

36‧‧‧ impact parts

37‧‧‧Chassis

38‧‧‧镂空部

4‧‧‧ card block

41‧‧‧Bevel

411‧‧‧Upper endpoint

412‧‧‧ lower end

5‧‧‧ drive unit

51‧‧‧ solenoid valve

511‧‧‧ valve stem

52‧‧‧ linkage

6‧‧‧ release

61‧‧‧Active Department

62‧‧‧ Passive Department

63‧‧‧stops

7‧‧‧First elastic element

8‧‧‧Second elastic element

9‧‧‧ release

91‧‧‧Active Department

92‧‧‧ Passive Department

X‧‧‧ axis

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a cross-sectional view showing the case of the Republic of China Application No. 101110812; FIG. 2 is an exploded perspective view illustrating A first preferred embodiment of the staple removing device of the present invention; FIG. 3 is a cross-sectional view of the first preferred embodiment; FIG. 4 is a partially enlarged cross-sectional view of FIG. In the first preferred embodiment, an impact member and a flywheel are engaged; FIG. 6 is a cross-sectional view showing a release member in the first preferred embodiment. Figure 7 is a cross-sectional view showing a second preferred embodiment of the staple removing device of the electric nail gun of the present invention; and Figure 8 is a cross-sectional view showing a release member in the second preferred embodiment A card block is removed; and FIG. 9 is a cross-sectional view showing a third preferred embodiment of the staple removing device of the electric nail gun of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 2, 3, and 4, a first preferred embodiment of the staple removing device of the present invention is mounted to an electric nail gun 3. The electric nail gun 3 mainly includes a frame 30, a nozzle 31 formed at a front end portion of the frame 30, a trigger unit 32 pivoted on the frame 30 and capable of starting a nailing operation through a control circuit, a flywheel 33 pivotally disposed on the frame 30, a motor 34 disposed at the frame 30 and driving the flywheel 33 to rotate at a high speed, pivoted at the frame 30 and at a first position away from the flywheel 33 (eg 3) a swing arm 35 displaced from a second position adjacent to the flywheel 33 (FIG. 6), a swing arm 35 in contact with the flywheel 33 with the second position, and being thrown to complete the nailing action The impact member 36, a casing 37 covering the frame 30, and a hollow portion 38 formed on a rear side of the casing 37 opposite to the nozzle 31. The swing arm 35 has a shaft member 351 formed at one end. The staple removing device comprises a clamping block 4, a driving unit 5, a releasing member 6, a first elastic member 7, and a second elastic member 8.

The card block 4 is movably disposed in the frame 30 along an axis X direction and has a slope 41 that abuts against the shaft member 351 of the swing arm 35. The ramp 41 has a reverse upper end point 411 and a lower end point 412.

The drive unit 5 is mounted on the frame 30 and has a solenoid valve 51 and a link 52. The solenoid valve 51 has a valve stem 511 that expands and contracts in the direction of the axis X. The connecting rod 52 is pivotally disposed on the frame 30 and is interlocked with the valve stem 511 of the solenoid valve 51 at one end, and abuts against the locking block 4 at the other end.

The release member 6 is displaceably disposed in the frame 30 along the axis X direction, and has an active portion 61 formed at one end portion and exposed by the hollow portion 38 to be exposed outside the casing 37. The other end portion is opposite to a passive portion 62 of the clamping block 4, and a stopping portion 63 is formed between the casing 37 and the frame 30.

The first elastic member 7 is locked between the locking block 4 and the frame 30, so that the locking block 4 is subjected to the elastic force of the first elastic member 7 when the solenoid valve 51 is not operated. The action is displaced to the upper end 411 of the inclined surface 41 adjacent to the shaft member 351, and the shaft member 351 is released to be displaced in a direction opposite to the flywheel 33, so that the swing arm 35 is returned to the first position.

The second elastic member 8 is locked between the frame 30 and the active portion 61 of the release member 6, so that the release member 6 is biased by the elastic force of the second elastic member 8 without an external force. The card block 4 is displaced in the direction until the stopper portion 63 is blocked by the casing 37.

Referring to FIG. 3 and FIG. 5, in the normal state, the swing arm 35 will interlock the impact member 36 with the flywheel 33 at a distance, when the trigger unit 32 is touched. When pressed, the solenoid valve 51 drives the valve stem 511 to extend toward the left side of the drawing along the axis X direction, and drives the link 52 to push the clamping block 4 against the elastic force of the first elastic member 7, along the axis X. When the direction of the lower end 412 of the inclined surface 41 is close to the shaft member 351, the clamping block 4 will press the shaft member 351 to drive the swing arm 35 by the variation of the slope 41. The direction of the flywheel 33 is lowered to the swing arm 35 in the second position, so that the impact member 36 is in frictional contact with the flywheel 33, whereby the flywheel 33 generates a great throwing force on the impact member 36. The impact member 36 is thrown in an instant to complete the nailing action.

Referring to FIG. 3 and FIG. 6 , when a state in which the clip 31 is stuck in the nozzle 31 causes the impact member 36 to be stuck with the flywheel 33, the shaft member 351 and the inclined surface 41 may be rubbed. The force causes excessive carding. Since the solenoid valve 51 retracts the valve stem 511 after the nailing is completed, the user only needs to remove the staples in the nozzle 31 and then press the release member 6. The active portion 61 can interlock the passive portion 62 to push the first elastic member 7, and drive the card block 4 to be reversely displaced along the axis X toward the left side of the drawing, until the upper end point 411 of the inclined surface 41 is adjacent to the axis When the member is 351, the card block 4 will change the position of the inclined surface 41, and release the swing arm 35 to move in the opposite direction to the flywheel 33, so that the swing arm 35 is returned to the first position, thereby releasing The impact state of the impact member 36 and the flywheel 33 causes the impact member 36 to return to its original position and return to the state shown in FIG.

Referring to FIG. 7 and FIG. 8, a second preferred embodiment of the present invention is substantially the same as the first preferred embodiment, except that the active portion 61 of the release member 6 is hidden from the hollow portion 38. Inside the casing 37. Thereby, the hollow portion 38 allows a tool (not shown) to pass through the hollow portion 38 and press the active portion 61, so that the active portion 61 interlocks the passive portion 62 to push the first elastic member 7, and drives The card block 4 is displaced to the left side of the drawing surface, and the carding state of the impact member 36 and the flywheel 33 is released, and the impact member 36 is returned to the original position to achieve the purpose of eliminating the staple.

Referring to FIG. 9, a third preferred embodiment of the present invention is substantially the same as the first and second preferred embodiments, and includes a card block 4, a driving unit 5, and a first elastic member 7. And a release member 9, the difference is that the release member 9 and the electric nail gun 3 are separate components, and have an active portion 91 formed at one end portion and a passive portion 92 formed at the other end portion.

In use, the release member 9 is inserted into the hollow portion 38 only by the X direction of the axis, so that the passive portion 92 can penetrate the frame 30 from the hollow portion 38 to contact the first elastic member 7. When the active portion 91 is exposed outside the hollow portion 38 and the casing 37 for pressing the active portion 91, the first elastic member 7 is pushed to drive the locking block 4 to release the impact member 36 and the The snap-in state of the flywheel 33 returns the impact member 36 to the original position to achieve the purpose of eliminating the staple.

In summary, the staple removing device of the electric nail gun of the present invention has the following advantages and effects: the present invention can drive the releasing member 6 to release the impact member only by the simple pressing action of the releasing members 6, 9. 36, the state of the card with the flywheel 33, to achieve the purpose of eliminating the condition of the pin, not only simple structure, easy to use, The tapping action is not required without damaging other components of the electric nail gun 3, making the invention more practical.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

30‧‧‧Rack

32‧‧‧ Pulling unit

33‧‧‧Flywheel

35‧‧‧ swing arm

351‧‧‧ shaft parts

36‧‧‧ impact parts

37‧‧‧Chassis

38‧‧‧镂空部

4‧‧‧ card block

41‧‧‧Bevel

411‧‧‧Upper endpoint

412‧‧‧ lower end

51‧‧‧ solenoid valve

52‧‧‧ linkage

6‧‧‧ release

61‧‧‧Active Department

62‧‧‧ Passive Department

63‧‧‧stops

7‧‧‧First elastic element

8‧‧‧Second elastic element

X‧‧‧ axis

Claims (10)

A staple removing device for an electric nail gun, the electric nail gun having a frame, a flywheel pivotally mounted on the frame, pivoting at the frame and at a first position away from the flywheel a swing arm adjacent to a second position of the flywheel, and an impact member contacting the flywheel with the second position and being thrown to complete the nailing action, the staple removing device comprises: a clamping block that is displaceably disposed in the frame and has a sloped surface abutting against one end of the swing arm; a driving unit mounted on the frame and electrically driving the card block to be positively displaced, And causing the card block to interlock with the swinging arm in the second position; and a releasing member displaceably disposed in the frame and having a one end formed at the opposite end and opposite to the engaging block a passive portion, and an active portion formed in the opposite end of the passive portion for contact pressure, the active portion being subjected to an external force, and the passive portion is urged to push the reverse displacement of the card block, so that The card block releases the swing arm to return to the first position by the change of the slope difference. The staple removing device of the electric nail gun according to claim 1, wherein the swing arm has a shaft member formed at one end and abutting against the inclined surface, the inclined surface having a reverse upper end point and a lower end point, when When the lower end of the inclined surface is adjacent to the shaft member, the clamping block urges the shaft member to be displaced toward the flywheel by the inclined surface, and the swing arm is located at the second position, when the upper end of the inclined surface is adjacent to the shaft member When the bevel of the card block releases the shaft toward Displacement in the direction opposite the flywheel causes the swing arm to return to the first position. The staple removing device of the electric nail gun of claim 1, further comprising a first elastic member that is locked between the clamping block and the frame, so that the clamping block is driven by the clamping member In the case that the unit does not operate, the arm is displaced to release the swing arm to return to the first position by the elastic force of the first elastic member. The staple removing device of the electric nail gun of claim 1, wherein the electric nail gun further has a casing covering the frame, and a hollow formed in the casing and exposing the active portion of the releasing member unit. The staple removing device of the electric nail gun of claim 4, wherein the releasing member is detachably disposed in the frame, the passive portion is penetrated into the frame by the hollow portion, and the active portion is exposed in the Outside the hollow. The staple removing device of the electric nail gun of claim 4, wherein the passive portion of the releasing member is hidden in the casing, and the active portion is also hidden in the casing relative to the hollow portion, the hollow portion A tool is allowed to pass through the hollow and touch the active portion. The staple removing device of the electric nail gun of claim 4, wherein the passive portion of the releasing member is hidden in the casing, and the active portion passes through the hollow portion. The staple removing device of the electric nail gun of claim 6 or 7, further comprising a second elastic member, the releasing member further having a stopping portion formed between the casing and the frame, the second The elastic component is locked between the frame and the active portion of the release member, so that the release member is subjected to the elastic force of the second elastic member without the external force, and is opposite to the clamping block. The displacement is such that the stop is blocked by the casing. A staple removing device for an electric nail gun according to claim 1, wherein the driving unit has a solenoid valve having a valve stem that is retractable and interlocked with the engaging block. The staple removing device of the electric nail gun according to claim 9, wherein the driving unit further has a connecting rod, the connecting rod is pivotally disposed on the frame and is integrally connected with the valve stem of the electromagnetic valve at one end, and The other end is abutted against the card block.