TWI725824B - Electric stapler - Google Patents

Abstract

An electric stapler includes a main body, a handle, a striking mechanism, and a safety mechanism. The main body is adapted for receiving staples. The handle is movably connected to the main body and has a moving portion. The moving portion is movable between an original position and an unlock position with respect to the main body. The striking mechanism includes a striking structure and a trigger switch. The striking structure is electrically connected to a power mechanism for striking staples along a striking direction. The trigger switch is disposed on the handle for being triggered to drive the striking structure to strike the staples out. When the trigger switch is at an operatable mode, the trigger switch is triggerable. When the trigger switch is at a locking mode, the trigger switch is un-triggerable. The safety mechanism is arranged between the main body and the handle and is electrically connected to the trigger switch. When the moving portion is located at the original position, the safety mechanism is at a locking mode to make the trigger switch at the locking mode. When the moving portion is located at the unlock position, the safety mechanism is at an unlock mode to make the trigger switch at the operatable mode. A direction from the original position to the locking position is a moving direction. An angle between the moving direction and the striking direction is smaller than 90 degrees.

Description

Electric nail gun

The present invention relates to an electric nail gun, especially an electric nail gun with a safety mechanism.

Generally speaking, nail guns can be divided into mechanical nail guns and electric nail guns. Electric nail guns are far less difficult to fire than mechanical nail guns, but the firing force is much greater than that of mechanical nail guns. Therefore, they are also dangerous. Larger, if it is fired by mistake, it is easy to cause personal injury.

Therefore, most electric nail guns have a safety design. The more common safety mechanism is to design the trigger button for nailing to be two-stage pressing. When the user performs the first stage of pressing, it will first encounter a certain resistance. It is used to remind that the nail is about to be fired, and more force is needed to press the second segment to fire the nail, thereby achieving the effect of preventing accidental touch; or as described in patent TW 303772, another place near the trigger button Set the safety button, the trigger button can trigger the nailing function only when the safety button is unlocked.

However, the above-mentioned safety mechanism has many shortcomings. First, the trigger button and the safety button are located close to or the same, which is not very effective in preventing accidental touch. When the trigger button and the safety button are squeezed or impacted by foreign objects, they may still be directly affected. Knock out the nail pin; furthermore, if the safety button is designed to be more difficult to unlock, it will trouble the user's normal use, and it will not play a big role in preventing accidental hits.

Therefore, it is necessary to provide a novel and progressive hydraulic caliper to solve the above-mentioned problems.

The main purpose of the present invention is to provide an electric nail gun, which can effectively avoid accidental firing and prompt the user whether the nail gun is in a firing state.

To achieve the above objective, the present invention provides an electric nail gun, which includes a body, a handle, a power supply mechanism, a nailing mechanism and a safety mechanism.

The body has an accommodating space and a nail outlet, the accommodating space and the nail outlet communicate with each other, the accommodating space is for accommodating at least one nail; the handle is movably connected with the body, and the handle has A moving part capable of moving between an initial position and an unlocking position relative to the main body, and the moving part is normally located at the initial position; the power supply mechanism is provided in at least one of the main body and the handle; The nail-driving mechanism includes a firing mechanism and a trigger switch. The firing mechanism is arranged in the accommodating space of the body and is electrically connected to the power supply mechanism for firing the at least one nail from the nail outlet along a nail-driving direction The trigger switch is provided on the handle and is electrically connected to the firing mechanism for driving the firing mechanism to fire the at least one nail. The trigger switch has a nail-driving mode and a locking mode. When the trigger switch is in In the nail-driving mode, the trigger switch can be triggered to drive the firing mechanism to fire the at least one nail. When the trigger switch is in the locking mode, the trigger switch is closed and cannot be triggered; the safety mechanism is provided on the body It is electrically connected to the moving part of the handle and to the trigger switch. When the moving part of the handle is in the initial position, the safety mechanism is in a locked state and the trigger switch is driven to be in the locked mode. The moving part is located in the unlocked position, the safety mechanism is in an unlocked state to drive The trigger switch is in the nail-driving mode; wherein the direction from the initial position to the unlocking position is defined as a movement direction, and the angle between the movement direction and the nail-driving direction is less than 90 degrees.

To achieve the above objective, the present invention provides an electric nail gun, which includes a body, a handle, a power supply mechanism, a nailing mechanism and a safety mechanism.

The body has an accommodating space and a nail outlet, the accommodating space and the nail outlet communicate with each other, the accommodating space is for accommodating at least one nail; the handle is movably connected with the body, and the handle has A moving part capable of moving between an initial position and a firing position relative to the main body, the moving part is normally located at the initial position; the power supply mechanism is provided on at least one of the main body and the handle; The nail-driving mechanism includes a firing mechanism and a trigger switch. The firing mechanism is arranged in the accommodating space of the body and is electrically connected to the power supply mechanism for firing the at least one nail from the nail outlet along a nail-driving direction The trigger switch is arranged on the moving part of the handle and is electrically connected to the firing mechanism for driving the firing mechanism to fire the at least one nail. The trigger switch has a nail-driving mode and a locking mode. The trigger switch is in the nail-driveable mode, and the trigger switch can be triggered to drive the firing mechanism to fire the at least one nail. When the trigger switch is in the lock mode, the trigger switch is closed and cannot be triggered; the safety mechanism is set At the handle and electrically connected to the trigger switch, the safety mechanism is used to switch between a locked state and an unlocked state. When the safety mechanism is in the locked state, the trigger switch is in the locked mode. When the safety mechanism is in the locked state, the trigger switch is in the locked mode. When the mechanism is in the unlocked state, the trigger switch is in the nail-driving mode; wherein, when the trigger switch is in the nail-driving mode and the moving part is in the firing position, the trigger switch drives the firing mechanism to fire the at least one Nail needle; wherein, the direction that defines the initial position toward the nailing position is a moving direction, and the angle between the moving direction and the nailing direction is less than 90 degrees.

10: body

11: accommodating space

12: Nail outlet

20: Handle

21: Mobile Department

22: Trigger button

30: Power supply mechanism

31: Power port

32: circuit board

41: firing mechanism

42: trigger switch

421: The second switch body

422: second touch arm

51: Safety switch

511: The first switch body

512: first touch arm

52: Pressure Department

61: Warning light

70: Spring

S: nail direction

M: moving direction

Figure 1 is a perspective view of the present invention.

Figure 2 is a partial perspective view of the present invention.

Figure 3 is an exploded perspective view of the present invention.

Figure 4 is a cross-sectional view of the present invention.

Figures 5 and 6 are schematic diagrams of the operation of the present invention.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

1 to 6, the present invention provides an electric nail gun, including a body 10, a handle 20, a power supply mechanism 30, a nailing mechanism and a safety mechanism.

The body 10 has an accommodating space 11 and a nail outlet 12, the accommodating space 11 and the nail outlet 12 communicate with each other, the accommodating space 11 is for accommodating at least one nail; the handle 20 and the body 10 Movably connected, the handle 20 has a moving part 21 that can move between an initial position and an unlocking position relative to the main body 10, and the moving part 21 is normally located at the initial position (in this embodiment) , A spring 70 springs between the main body 10 and the handle 20, so that the handle 20 is normally located at the initial position); the power supply mechanism 30 is provided on at least one of the main body 10 and the handle 20 The nailing mechanism includes a firing mechanism 41 and a trigger switch 42, the firing mechanism 41 is provided in the accommodating space 11 of the body 10 and is electrically connected to the power supply mechanism 30 for a nailing direction S from the The nail outlet 12 fires the at least one nail. The trigger switch 42 is provided on the handle 20 and is electrically connected to the firing mechanism 41 for driving the firing mechanism 41 to fire the at least one nail. The trigger switch 42 has a Nailable mode and a locked mode, when the trigger switch 42 is in the In the nailing mode, the trigger switch 42 can be triggered to drive the firing mechanism 41 to fire the at least one nail. When the trigger switch 42 is in the lock mode, the trigger switch 42 is closed and cannot be triggered; the safety mechanism is provided Between the main body 10 and the moving portion 21 of the handle 20 and electrically connected to the trigger switch 42, when the moving portion 21 of the handle 20 is in the initial position, the safety mechanism is in a locked state to drive the trigger The switch 42 is in the locked mode. When the moving portion 21 of the handle 20 is in the unlocked position, the safety mechanism is in an unlocked state and drives the trigger switch 42 to be in the nailable mode; wherein the initial position is defined to be toward the unlocked The direction of the position is a moving direction M, and the angle between the moving direction M and the nailing direction S is less than 90 degrees.

In this embodiment, the safety mechanism includes a safety switch 51 and a pressing portion 52. The safety switch 51 is an automatic return switch and includes a first switch body 511 and a pivot that are electrically connected to the trigger switch 42. The first touch arm 512 is arranged on the first switch body 511, the safety switch 51 is arranged on the moving portion 21 of the handle 20, the pressing portion 52 is arranged on the body 10, and the safety switch 51 is located on the pressing portion Below 52, when the moving part 21 of the handle 20 is at the initial position, the first touch arm 512 is normally pressed by the pressing part 52 toward the first switch body 511, so that the first switch body 511 is normally touched The safety mechanism is in the locked state; when the moving portion 21 of the handle 20 moves to the unlocked position, the first touch arm 512 is not pressed by the pressing portion 52 and does not touch the first switch body 511 , The safety mechanism is in the unlocked state. However, the safety switch can also be a light shielding switch or other types of switches; in detail, the pressing portion 52 is a protrusion protruding toward the handle 20.

In addition, the trigger switch 42 is a micro switch and includes a second switch body 421 electrically connected to the power supply mechanism 30 and a second touch arm 422 pivoted on the second switch body 421. The handle 20 is provided with There is a trigger button 22 that can be pressed; when the trigger button 22 is not pressed, the second touch arm 422 is normally away from the second switch body 421 without touching the second switch body 421; when the trigger 22 is pressed, The second touch arm 422 is pushed toward the second switch body 421, and the trigger switch 42 is in the hammerable nail mode In this way, the second switch body 421 is touched, and the firing mechanism 41 is driven to fire the at least one needle; preferably, the trigger button 22 is arranged on the side of the handle 20 facing the body 10.

In addition, a warning mechanism may be included. The warning mechanism includes a warning light 61. The warning light 61 is provided on the handle 20 and is electrically connected to the safety mechanism. The warning light 61 is located at the safety mechanism. The light emitting mode is different between the locked state and the unlocked state to remind the user. For example, when the safety mechanism is in the locked state, the warning light 61 does not emit light, and when the safety mechanism is in the unlocked state, the warning light 61 emits light Or, when the safety mechanism is in the locked state, the warning light 61 emits blue or green light, and when the safety mechanism is in the unlocked state, the warning light 61 emits red light; preferably, the warning light 61 is It is arranged on the side of the handle 20 facing away from the main body 10, that is, the warning light 61 is arranged in the opposite direction of the nail driving direction S, that is, toward the direction of the user, so that the user can know whether the safety mechanism has been installed. Switching to the unlocked state can not only be used as a reference for when to press the trigger button 22, but also serves as a warning, reminding the user to press the trigger button 22 again in the current state, and the nail will be shot.

Specifically, the handle 20 is pivoted to the body 10, and the moving part 21 is located at one end of the handle 20 relative to the pivot joint. Therefore, in the case that the handle 20 has a small swing amplitude, the moving part 21 21 is similar to linear movement. When the handle 20 is pressed toward the body 10, the moving part 21 will move downward to activate the safety mechanism; however, in other possible embodiments, the handle can also be other The method is movably arranged on the body, for example, slidably arranged on the body, so that the handle can move in the moving direction as a whole, and the effect of triggering the safety mechanism can also be achieved.

In addition, in this embodiment, the power supply mechanism 30 includes a power connection port 31 and a circuit board 32 that are electrically connected to each other. The power connection port 31 is for connecting an external power source. The safety switch 51 and the trigger switch 42 are both electrically connected. Is electrically connected to the circuit board 32, the warning light 61 is also electrically connected to the circuit board 32, that is, the safety switch 51 (especially the first switch body 511), the trigger switch 42 (special In addition, the second switch body 421) and the warning light 61 are electrically connected to the circuit board 32 respectively, and trigger and communicate with each other through the circuit board 32.

In actual use, when the user has not yet held the handle 20, the moving part 21 is at the initial position, the safety switch 51 is in the locked state, so the trigger switch 42 is also in the locked mode, even if the trigger button 22 is pressed, the trigger The switch 42 will not be triggered to cause the firing mechanism 41 to knock out the staples, as shown in FIG. 4; when the user holds the handle 20 and pushes the moving part 21 down to the unlocked position, the safety mechanism switches to The unlocked state makes the warning light 61 light up, and drives the trigger switch 42 to switch to the nail-capable mode (as shown in FIG. 5). At this time, the user presses the trigger button 22 again to enable the firing mechanism 41. Hit the nails to complete the operation (as shown in Figure 6); when the user releases the handle 20, the moving part 21 automatically returns to the initial position, the safety mechanism also returns to the locked state, so that the trigger switch 42 Return to locked mode to prevent accidental firing.

In other words, only when the handle 20 is pressed, the trigger button 22 can be pressed to drive the nail out. As long as the unlocking action is not pressed by the handle 20, the trigger button 22 will not hit the nail even if it is pressed; Since the direction of pressing the handle 20 and the direction of pressing the trigger button 22 are opposite, the user generally does not apply too much force to the bottom end of the handle 20 when the user presses the handle 20, so it is not easy for the user to In the process of pressing the handle 20 to unlock, the nail needle is accidentally fired, but the trigger button 22 must be pressed backwards, which is relatively inconvenient, to fire the nail needle, further preventing the risk of accidental touch.

In other possible embodiments of the present invention, the electric nail gun includes a body, a handle, a power supply mechanism, a nailing mechanism, and a safety mechanism.

The body has an accommodating space and a nail outlet, the accommodating space and the nail outlet communicate with each other, the accommodating space is for accommodating at least one nail; the handle is movably connected with the body, and the handle has A moving part capable of moving between an initial position and a firing position relative to the main body, the The moving part is normally located at the initial position; the power supply mechanism is arranged on at least one of the body and the handle; the nailing mechanism includes a firing mechanism and a trigger switch, and the firing mechanism is arranged in the accommodating space of the body Inside and electrically connected to the power supply mechanism for firing the at least one nail from the nail outlet along a nailing direction, the trigger switch is arranged on the moving part of the handle and electrically connected to the firing mechanism for driving The firing mechanism fires the at least one nail, and the trigger switch has a nail-driving mode and a locking mode. When the trigger switch is in the nail-drivable mode, the trigger switch can be triggered to drive the firing mechanism to fire the at least one nail. Nail pin, when the trigger switch is in the lock mode, the trigger switch is closed and cannot be triggered; the safety mechanism is provided on the handle and is electrically connected to the trigger switch, and the safety mechanism is provided in a locked state and an unlocked state Switch between states. When the safety mechanism is in the locked state, the trigger switch is in the locked mode, and when the safety mechanism is in the unlocked state, the trigger switch is in the nail-driveable mode; wherein, when the trigger switch is in the unlocked state, When the nail can be driven mode and the moving part is in the firing position, the trigger switch drives the firing mechanism to fire the at least one nail; wherein the direction that defines the initial position toward the nail position is a movement direction, and the movement direction The included angle with the nailing direction is less than 90 degrees.

In summary, the electric nail gun provided by the present invention is different from the conventional nail gun with safety mechanism. The safety mechanism and the trigger are set on the same button, the safety mechanism and the trigger button are set in different positions, and the safety mechanism is unlocked. The moving direction of the force is opposite to the pressing direction of the trigger button, which can prevent the user from accidentally touching the nailing mechanism during the unlocking process, making the trigger button relatively difficult to press, and improving the effect of preventing accidental touches, and The spring between the handle and the main body can also be used to absorb the recoil force of the nail, which is very effective.

10: body

20: Handle

22: Trigger button

30: Power supply mechanism

61: Warning light

Claims (10)

An electric nail gun, including: A body with an accommodating space and a nail outlet, the accommodating space and the nail outlet communicate with each other, and the accommodating space is for accommodating at least one nail; A handle movably connected to the main body, the handle has a moving part that can move between an initial position and an unlocked position relative to the main body, and the moving part is normally located at the initial position; A power supply mechanism is provided in at least one of the main body and the handle; A nail-driving mechanism includes a firing mechanism and a trigger switch. The firing mechanism is arranged in the accommodating space of the main body and is electrically connected to the power supply mechanism for firing the at least one from the nail outlet along a nail-driving direction. The trigger switch is provided on the handle and is electrically connected to the firing mechanism for driving the firing mechanism to fire the at least one nail. The trigger switch has a nail-driving mode and a locking mode. When the trigger switch In the nail-drivable mode, the trigger switch can be triggered to drive the firing mechanism to fire the at least one nail, and when the trigger switch is in the lock mode, the trigger switch is closed and cannot be triggered; A safety mechanism is provided between the main body and the moving part of the handle and is electrically connected to the trigger switch. When the moving part of the handle is in the initial position, the safety mechanism is in a locked state to drive The trigger switch is in the locked mode, and when the moving part of the handle is in the unlocked position, the safety mechanism is in an unlocked state to drive the trigger switch in the nail-driveable mode; Wherein, the direction defining the initial position toward the unlocking position is a moving direction, and the angle between the moving direction and the nailing direction is less than 90 degrees. The electric nail gun according to claim 1, wherein the safety mechanism includes a safety switch and a pressing part, the safety switch is an automatic return switch and includes a first switch body electrically connected to the trigger switch and A first touch arm pivoted on the first switch body, the safety switch is arranged on the moving part of the handle, the pressing part is arranged on the body, the safety switch is located below the pressing part, when the handle The moving part is at the initial position, and the first touch arm is normally pressed by the pressing part toward the first switch body, so that the first switch body is normally touched and the safety mechanism is in the locked state; When the moving part is moved to the unlocking position, the first touch arm is not pressed by the pressing part and does not touch the first switch body, so that the safety mechanism is in the unlocked state. The electric nail gun according to claim 2, wherein the pressing portion is a protrusion protruding toward the inside of the handle. The electric nail gun according to claim 1, wherein the trigger switch is a micro switch and includes a second switch body electrically connected to the power supply mechanism and a second trigger arm pivoted on the second switch body, The handle is provided with a trigger button that can be pressed; when the trigger button is not pressed, the second trigger arm is normally away from the second switch body without touching the second switch body; when the trigger is pressed, the second switch body The second trigger arm pushes toward the second switch body, and the trigger switch is in the nail-driving mode, will trigger the second switch body, and then drive the firing mechanism to fire the at least one nail. The electric nail gun according to claim 4, wherein the trigger button is arranged on a side of the handle facing the body. The electric nail gun according to claim 1, further comprising a warning mechanism, the warning mechanism comprising a warning light, the warning light is arranged on the side of the handle back to the body and is electrically connected to the safety mechanism, when the When the safety mechanism is in the locked state and the unlocked state, the light emitting mode of the warning light is different to remind the user. The electric nail gun according to any one of claims 1 to 6, wherein the handle is pivoted to the body, and the moving part is located at one end of the handle relative to the pivot. The electric nail gun according to any one of claims 1 to 6, wherein the handle is slidably arranged on the body. The electric nail gun according to claim 3, wherein the trigger switch is a micro switch and includes a second switch body electrically connected to the power supply mechanism and a second trigger arm pivoted on the second switch body, The handle is provided with a trigger button that can be pressed; when the trigger button is not pressed, the second trigger arm is normally away from the second switch body without touching the second switch body; when the trigger is pressed, the second switch body The second trigger arm pushes towards the second switch body, and the trigger switch is in the nail-driveable mode, it will touch the second switch body, and then drive the firing mechanism to fire the at least one nail; the trigger button is attached to The handle faces one side of the body; the electric nail gun further includes a warning mechanism, the warning mechanism includes a warning light, the warning light is arranged on the handle and electrically connected with the safety mechanism, when the safety mechanism is located at the In the locked state, the warning light does not emit light. When the safety mechanism is in the unlocked state, the warning light emits light; the warning light is arranged on the side of the handle back to the body; the handle is pivoted to the body, the The moving part is located at one end of the handle relative to the pivot point; a spring is springed between the body and the handle, so that the handle is normally located at the initial position; the power supply mechanism includes a power connection port that is electrically connected to each other With a circuit board, the power connection port is for connecting an external power source, the safety switch and the trigger switch are electrically connected to the circuit board, and the warning light is also electrically connected to the circuit board. An electric nail gun, including: A body with an accommodating space and a nail outlet, the accommodating space and the nail outlet communicate with each other, and the accommodating space is for accommodating at least one nail; A handle movably connected with the main body, the handle has a moving part that can move between an initial position and a firing position relative to the main body, and the moving part is normally located at the initial position; A power supply mechanism is provided in at least one of the main body and the handle; A nail-driving mechanism includes a firing mechanism and a trigger switch. The firing mechanism is disposed in the accommodating space of the body and is electrically connected to the power supply mechanism for firing the at least one from the nail outlet along a nail-driving direction. Needle, the trigger switch is arranged at the moving part of the handle and is electrically connected with the firing mechanism for driving the firing mechanism to fire the at least one nail, the trigger switch has a nail-driving mode and a locking mode, when The trigger switch is in the nail-drivable mode, and the trigger switch can be triggered to drive the firing mechanism to fire the at least one nail. When the trigger switch is in the lock mode, the trigger switch is closed and cannot be triggered; A safety mechanism is provided on the handle and is electrically connected to the trigger switch. The safety mechanism is used to switch between a locked state and an unlocked state. When the safety mechanism is in the locked state, the trigger switch In the locked mode, when the safety mechanism is in the unlocked state, the trigger switch is in the nail-capable mode; Wherein, when the trigger switch is in the nail-drivable mode and the moving part is in the firing position, the trigger switch drives the firing mechanism to fire the at least one nail; Wherein, the direction defining the initial position toward the nailing position is a moving direction, and the angle between the moving direction and the nailing direction is less than 90 degrees.

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