TWI421155B - Into the tool - Google Patents

Description

Driving tool

The invention relates to a driving tool.

As an example of the driving tool, a gas burning type nailing machine is known. The gas burning type nailing machine injects a combustible gas into a closed combustion chamber of the tool body, stirs a mixed gas of combustible gas and air in the combustion chamber, and combusts the stirred mixed gas in the combustion chamber. a high-pressure combustion gas is generated in the combustion chamber, and the high-pressure combustion gas is applied to the striking piston accommodated in the striking cylinder, and the striking piston is driven in an impact cylinder in the striking cylinder, and is combined with the lower side of the striking piston. The driver drives the nail supplied from the protrusion below the body into the steel plate or the cement.

Further, the combustion chamber is a structure in which the movable sliding sleeve that is vertically movably disposed on the outer side of the striking cylinder is moved upward to be sealed and combustible, and the movable sliding sleeve is moved upward by the contact member. The contact member is configured to be slidable up and down along the protruding portion, the front end of which is more protruded than the lower end of the protruding portion, and in the case of driving the nail, the protruding portion is relatively moved upward when pressed against the driven member. The contact member and the movable sliding sleeve are connected by the connecting rod member. When the contact member moves upward, the movable sliding sleeve also moves upward through the connecting rod member, and the upper end thereof abuts against the upper wall of the tool body, thereby becoming a sealed state and being supplied at the same time. Internal mixed gas.

The driving tool body is made of synthetic resin, and a trigger for igniting the spark of the mixed gas filled in the combustion chamber is provided at the base of the handle. turn off. Further, a guide portion is formed in the tool body, and the guide portion is slidably received by a trigger for turning the trigger switch into conduction. When the trigger is pulled and linearly operated, the trigger switch is pushed in and turned on, and the spark plug is ignited, and the mixed gas in the combustion chamber is burned. After the driving action, the combustion chamber is turned on.

The trigger is a synthetic resin member, and on one side thereof, a J-shaped trigger lever that integrally operates with the combustion chamber to be sealed and opened is integrally formed. The trigger lever is housed in a tool body made of synthetic resin, and the body portion is exposed to the outside. Moreover, the trigger is moved in one direction, and the pair of trigger switches are arranged to abut and leave, and are guided by the guide formed on the tool body.

Further, a lock lever integrally formed with the link member is disposed beside the cam plate that is interlocked with the trigger. Therefore, the trigger is pulled before the pressing action of the contact member, and since the cam plate cannot be rotated by hitting the lock lever, the trigger cannot be pulled. That is, the trigger must be pulled and started after the contact member is pressed against the driven member and the closed combustion chamber is formed (refer to Japanese Laid-Open Patent Publication No. 2005-22069)

In this way, the trigger is pulled, and if the cam plate and the lock lever abut, the trigger switch cannot be turned on. However, while the contact member is pressed against the driven member while the trigger is still held, the lock lever and the link member slide together along the cam plate and move to the position away from the cam plate, and the combustion chamber It becomes sealed, and since the trigger can be pulled again, the trigger switch can be turned on. In this case, the contact member can be pressed against the driven member and the striking mechanism can be driven after the trigger is pulled, that is, a so-called contact strike is performed.

That is, even if it is a gas burning type nailing machine which is generally incapable of performing contact striking, if the special usage as described above is performed, there is a problem that the nail driving machine is driven.

Therefore, in order to solve this problem, it is known that a technique for making contact strikes is not possible by electrically controlling the ignition system (see Japanese Patent No. Hei 7-156076).

However, the electrical control method is very complicated and becomes a factor for the price to become more expensive.

On the other hand, in the case where the trigger switch is constituted by an optical switch, although the timing at which the switch becomes conductive can be freely designed, it is expensive. However, in the case of a micro-switch, although it is inexpensive, since the stroke of the switching portion that is directly pressed back and returned is short, when the micro-switch is placed on the way of the stroke of the trigger, the switching portion may be excessively pressed. damage. Therefore, in the case of a micro-switch, it is necessary to construct a structure that does not become conductive if the operator does not pull the trigger to the bottom.

Moreover, the trigger is in an asymmetrical form as described above. Further, there is a very small gap between the inner side surface of the guide portion and the outer side surface of the trigger. Therefore, when the finger pull trigger is pulled, although the trigger body of the buckle is directly biased, the divided trigger lever is applied with a load for rotating the cam plate as will be described later. Thus, if a moment of rotation acts on the entire trigger, friction occurs between the inner side of the guide and the outer side of the trigger during the pulling action. Both the guide portion and the trigger are made of synthetic resin, and since the wear is relatively poor, the wear is gradually increased in the opening and closing operation of the repeating switch. In particular, in the case of driving the nail into the driving tool of the cement, the cement scraps are scattered and attached to the tool during drilling, and Wear of the guide and the trigger. When the wear of the guide portion becomes severe, since the guide performance is deteriorated, the trigger is rotated and tilted, and the trigger cannot be completely pulled to the end of the stroke, and the switching failure occurs.

As shown above, since the switch does not become conductive when the trigger is not fully pulled to the end of the stroke, there is a problem of poor operation, and if it continues to wear, the gap is also increased when the trigger is pulled, so there is also a pull. The switch to the end of the stroke will not become a problem of conduction.

One or more embodiments of the present invention provide a driving tool that can reliably prevent contact strikes and ensure safety with a simple configuration.

Moreover, one or more embodiments of the present invention provide a driving tool that improves operability even when a microswitch is used, and that the switch can be surely turned on even if the guide portion is worn.

According to one or more embodiments of the present invention, there is provided a driving tool comprising: a striking cylinder, the striking piston is slidable in an up and down direction; the trigger is driven by a pulling operation; the protruding portion is supplied and utilized a fastener that is struck by the striking piston; the contact member is disposed to protrude more than the lower end of the protruding portion; the movable sliding sleeve is coupled with the contact member and is disposed on the striking cylinder up and down; the locking lever, and The movable sliding sleeve is integrally disposed at a lower portion of the movable sliding sleeve; and the cam plate is coupled to the trigger and rotatably disposed at a lateral position of the locking rod. Forming an engaging portion at the cam plate; the cam plate pressing the contact member against the driven member And pulling the trigger under the lower end of the locking rod; the engaging portion, after the pulling operation of the trigger, presses the contact member against the driven member, the contact member is upward Engage with the lock lever on the way.

According to one or more embodiments of the present invention, the engaging portion may also be formed in a groove shape.

According to one or more embodiments of the present invention, the engaging portion and the lower portion of the locking rod are engaged; the lower portion of the locking rod may also be U-shaped.

According to one or more embodiments of the present invention, the contact member may also be slidably disposed on the protrusion.

According to one or more embodiments of the present invention, comprising: a tool body having a handle; a trigger disposed at a base of the handle; a guiding portion slidably guiding the trigger; and a trigger switch disposed at the guiding portion It can be pushed by pulling the trigger. The trigger has: a trigger lever disposed opposite to the trigger switch, and a trigger body formed by the trigger switch; the trigger body and the trigger lever are arranged side by side; the trigger lever and the trigger body The pulling operation is linked; the stroke of the trigger body is longer than the stroke amount of the trigger lever.

According to one or more embodiments of the present invention, the trigger lever and the trigger body may also be coupled via a coupling spring.

According to one or more embodiments of the present invention, an elongated hole may be formed in the trigger lever; and the trigger body may also form a pin slidably engaged with the elongated hole.

According to one or more embodiments of the present invention, the trigger is opened The switch can also be a micro switch.

According to one or more embodiments of the present invention, in the case of a contact striking, the trigger is first pulled, and when the contact member is pressed against the driven member while the cam plate is being rotated, the locking lever is also together with the contact member. Move gradually upwards. However, since the contact member engages with the engaging portion of the lock lever while moving upward, it is not possible to move upward. Therefore, the movable sliding sleeve is also stopped at a position moving upwards, and the combustion chamber is not sealed. The trigger can't be pulled up any more. That is, the trigger, the movable sliding sleeve, and the contact member are all locked. Therefore, the driving tool cannot be started. Therefore, with the simple configuration in which the engaging portion is formed only on the cam plate, the contact strike can be surely prevented, and safety can be ensured.

Further, according to one or more embodiments of the present invention, when the finger is buckled on the trigger body and the pulling operation is performed, the trigger lever is also interlocked, and the trigger is integrally moved as a whole. Moreover, since the stroke amount of the trigger lever is shorter than the stroke amount of the trigger body, the trigger lever pushes the trigger switch while the trigger body is moving, and the switch becomes conductive. In this way, since the trigger switch can be turned on before the trigger body is completely pulled to the end of the stroke, even when the micro switch is used, the operational feeling is good, and the operability can be improved.

Moreover, the trigger body and the trigger lever are separately configured, because the stroke amount of the trigger lever is shorter than the stroke amount of the trigger body, and the trigger lever and the trigger body are coupled by a spring, so even if the trigger body is tilted, the stroke of the trigger body is long. Therefore, the trigger lever can cause the trigger switch to be surely turned on by pulling the trigger body completely to the bottom.

In Fig. 1, reference numeral 1 denotes a tool body of a gas combustion type driving tool (nailing machine). The tool body 1 is made of synthetic resin, and the handle 2 and the magazine 3 are connected, and the striking piston, the cylinder mechanism 4, and the combustion chamber 5 are disposed inside.

The striking piston and cylinder mechanism 4 accommodates the striking piston 7 in the striking cylinder 6 so as to be slidable, and integrally connects the driver 8 and the lower side of the striking piston 7.

The combustion chamber 5 is formed by an annular movable sliding sleeve 11 disposed between the upper end surface 7a of the striking piston 7, the striking cylinder 6, and the inner upper wall (cylinder head) 10 formed in the upper casing.

The movable sliding sleeve 11 is connected via a link member 12 and a contact member 13 as a contact member. The contact member 13 is configured to be freely slid along the nail ejection protrusion 18 provided below the tool body 1, the front end is protruded by the nail ejection protrusion 18, and is spring-biased to always protrude, the upper end and the link member 12 connected to install.

Further, a lock lever 14 is integrally formed with the link member 12. By pressing the protruding portion 18 against the driven member P, the contact member 13 is relatively moved upward, and the link member 12 is pushed up against the spring, so that the movable sliding sleeve 11 is moved to hit the upper wall 10. Therefore, the inside of the combustion chamber 5 is isolated from the atmosphere, and is sealed as shown in Fig. 2. On the contrary, the upper portion of the combustion chamber 5 communicates with the atmosphere by moving the movable sliding sleeve 11 and the contact member 13 downward together.

After the combustion chamber 5 is sealed, when the trigger 15 (17) is pulled, the Mars is The plug 60 ignites the mixed gas, and the mixed gas burns and expands explosively. Since the pressure of the combustion gas acts on the upper surface of the striking piston 7 and is driven downward, the driver 8 strikes the front stud N that is supplied into the nail striking projection 18 and is driven into the driven member P. Then, the movable sliding sleeve 11 is moved downward, and the combustion chamber 5 is opened again.

The lock lever 14 and the lower portion of the link member 12 are integrally formed. The lower portion of the lock lever 14 is formed in a U shape (refer to Fig. 5).

Further, the guide portion 16 that is slidably guided by the trigger 15 (17) is provided at the base of the handle 2 of the tool body. The guide portion 16 is formed in a box shape that is open at the lower side and the tool body 1 side. A trigger switch (for example, a micro switch) 50 that can be pushed by pulling the trigger 15 in one direction is disposed at one end of the upper wall 16a of the guide portion 16.

[First Embodiment]

Fig. 3 is an enlarged view showing a peripheral portion of a trigger of a gas burning type nailing machine according to a first embodiment of the present invention. The trigger 15 is made of synthetic resin, and is divided into a J-shaped trigger lever 15a which is disposed to face the trigger switch 50, and a trigger body 15b which is formed in a block shape.

At the lower end of the trigger body 15b, a finger portion 19 for locking fingers is formed, and a spring receiving groove 20 is formed, and the spring receiving groove 20 opens toward the upper side of the opposite side of the finger fastening portion 19. Further, the one end side of the finger fastening portion 19 is extended to form the spring receiving piece 21. Further, the end portion of the spring 22 disposed in the spring receiving groove 20 of the trigger body 15b is engaged with the spring receiving recess 23 of the upper wall 16a of the guide portion 16.

A projection 25 is formed at the upper end of the trigger lever 15a. Protrusion 25 and the wrench The switch 50 is configured in an opposing manner. Further, the spring receiving groove 26 is formed below the protrusion 25. The coupling spring 24 is disposed between the spring receiving groove 26 and the spring receiving piece 21. Further, the arm portion 27 is formed at a lower portion of the trigger lever 15a, and the projecting shaft 28 is formed at a lower end thereof. The projecting shaft 28 and the cam plate 30 are engaged.

The cam plate 30 is formed in a substantially triangular shape and is disposed at a lateral position of the lock lever 14. Further, the support shaft 31 provided to the tool body 1 is provided to be freely rotatable. An engaging portion 32 is formed on the outer edge thereof, and the protruding shaft 28 and the engaging portion 32 are engaged with each other. Therefore, the cam plate 30 and the trigger 15 are interlocked in the upper and lower directions, and are rotatable about the support shaft 31.

Further, the inner edge 33 of the cam plate 30 is disposed to face the outer side of the lock lever 14. Further, an engaging portion 35 engageable with the lower end 34 of the lock lever 14 is formed in the inner edge 33.

Further, when the contact member 13 is moved to the upper end, the lower end 34 of the lock lever 14 is located above the rotational locus of the upper edge portion 36 of the cam plate 30. Therefore, although the cam plate 30 is blocked by the lock lever 14 and cannot be rotated, after the contact member 13 is moved upward, the cam plate 30 can be rotated by the pull trigger 15.

When the driving tool of the above configuration is operated, generally, the contact member 13 is relatively moved upward by pressing the nail ejection protrusion 18 of the nailing machine against the upper surface of the driven member P. Therefore, the link member 12 is pushed up against the spring bias, and as shown in Fig. 2, the movable sleeve 11 is moved upward, the combustion chamber 5 is sealed from the atmosphere and sealed, and a combustible gas is injected into the inside, and the fan 37 is rotated. While stirring a mixture of flammable gas and air. Moreover, when the contact member 13 is moved upward, the lock lever 14 is also together with the link member 12 Move up. Then, when the finger is engaged with the trigger body 15b and the pulling operation is performed, since the trigger lever 15a is also moved upward by the coupling spring 24, the cam plate 30 is rotated in the counterclockwise direction of the drawing, and the upper edge portion 36 is moved to the already The lower part of the locking lever 14 is moved upward. At the same time, the trigger 15 pushes the trigger switch 50 to become conductive, and the mixed gas is ignited by the spark plug 60, and the mixed gas generates explosive combustion. The striking piston 7 is driven by the pressure of the combustion gas, and the driver 8 strikes the front stud N supplied into the nail striking projection 18 and is driven into the driven member P.

When the striking piston 7 is driven downward, the movable sliding sleeve 11 is moved downward to receive the force. However, when the lower end of the contact member 13 is pressed against the surface of the driven member P, the movable sliding sleeve 11 does not move downward. However, since the tool is separated from the driven member P by the reaction force of the nail, the movable sliding sleeve 11 can be moved downward. However, since the upper edge portion 36 of the cam plate 30 is located below the lower end of the lock lever 14 and supports the lock lever 14, the lock lever 14 cannot move downward. Therefore, the movable sliding sleeve 11 is also held at the same position.

After the nailing is completed, the trigger 15 is released and returned to the lower position, while the cam plate 30 is rotated in the opposite direction. Therefore, since the moving member is not hindered below the lock lever 14, when the contact member 13 is separated from the driven member, the contact member 13, the link member 12, the lock lever 14, and the movable sliding sleeve 11 are returned to the lower starting position. And open the combustion chamber 5, ready to nail the next time.

Further, not only the single-shot nailing as described above, but also after the first trigger 15 is pulled, the contact portion 18 is pressed against the driven member P and the contact strike is driven. As shown in Fig. 2, the pull trigger is pulled. 15 and turning the cam plate 30 When the contact member 13 is pressed against the driven member P, the lock lever 14 and the link member 12 gradually slide upward along the inner edge of the cam plate 30. However, as shown in Fig. 4, since the engaging portion 35 is formed in the middle portion of the inner edge 33, the lower end 34 of the lock lever 14 and the engaging portion 35 are engaged with each other, and cannot move upward. Therefore, the movable sliding sleeve 11 also stops at a position that moves upward. That is, the trigger 15 cannot be pulled up any more. It is impossible to move the contact member 13 to the upper side. The trigger 15, the movable sleeve 11, and the contact member 13 are all locked. Therefore, the driving tool cannot be started.

Therefore, by simply forming the engaging portion 35 on the cam plate, the contact strike can be reliably prevented at a low cost.

Further, the engaging portion that engages with the lower end of the lock lever 14 is not limited to a groove shape such as the engaging portion. A protrusion shape can also be formed.

[Second Embodiment]

Fig. 6 is an enlarged view showing a peripheral portion of a trigger of a gas burning type nailing machine according to a second embodiment of the present invention. The trigger 17 is made of synthetic resin, and is divided into a J-shaped trigger lever 72 that is disposed to face the trigger switch 50, and a trigger body 73 that is formed in a block shape.

At the lower end of the trigger body 73, a finger portion 74 for locking fingers is formed, and a spring receiving groove 75 is formed, which opens toward the upper side of the opposite side of the finger fastening portion 74. Further, the one end side of the finger fastening portion 74 is extended to form the spring receiving piece 76. Further, the spring 40 is attached to the spring receiving groove 75 of the trigger body 73 and the spring receiving recess 77 formed in the upper wall 16a, and the trigger body 73 is biased downward by the spring 40.

A protrusion 78 is formed at the upper end of the trigger lever 72. Protrusion 78 and the trigger The switches 50 are arranged in opposite directions. Further, the spring receiving groove 80 is formed below the projection 78 and opens downward. Further, the arm portion 27 is formed at the lower portion of the trigger lever 72, and the projecting shaft 28 is formed at the lower end thereof. The projecting shaft 28 is engaged with the groove 32 of the cam plate 30 of the tool body 1 that is freely rotatably engaged.

Further, in the present embodiment, the cam plate 30 having the same shape as that of the first embodiment is used. However, it is only necessary to use a cam plate that is interlocked with the arm portion of the trigger lever, and may be a cam plate of another shape.

Next, the trigger lever 72 and the trigger body 73 are coupled to each other in a parallel state by a connecting spring 86. That is, one end of the coupling spring 86 is disposed on the spring receiving groove 80 of the trigger lever 72, and the other end is engaged with the spring receiving piece 76 of the trigger body 73. Further, a pin 87 is formed in the trigger body 73, and the center plate central projection 87 is engaged with the elongated hole 88 formed in the upper portion of the trigger lever 72, and the trigger body 73 and the trigger lever 72 are movable in the range of the pin 87 in the elongated hole 88. The inside moves up and down relatively. Thus, the trigger 17 is configured to abut and disengage the trigger switch 50.

Therefore, when the finger is fastened to the trigger body 73 and the pulling operation is performed, the trigger lever 72 is also interlocked via the connecting spring 86. When the trigger 17 abuts or leaves, the trigger switch 50 can perform a switching operation. Further, the trigger lever 72 and the trigger body 73 are stopped by abutting against the upper wall 16a of the guide portion 16 when the pulling operation is performed.

Further, in the construction, when the trigger 17 is pulled, the trigger lever 72 can push the trigger switch 50 during the movement of the trigger body 73. That is, the upper surface 41 of the trigger lever 72 is formed to be higher than the upper surface 42 of the trigger body 73. That is, the distance between the upper surface 41 of the trigger lever 72 and the upper wall 16a of the guide portion 16 L1 is formed to be shorter than the distance L2 between the upper surface 42 of the trigger body 73 and the upper wall 16a of the guide portion 16. Thus, the stroke amount of the trigger lever 72 is shorter than the stroke amount of the trigger body 73.

In the above configuration, when the finger is pushed, the finger is fastened to the trigger body 73, and when the spring 40 is pulled upward, the trigger spring 72 pushes the trigger lever 72 upward, and the trigger is integrally moved as a whole. Moreover, since the stroke amount of the trigger lever 72 is shorter than the stroke amount of the trigger body 73, as shown in FIG. 7, the protrusion 78 at the upper end of the trigger lever 72 is disposed close to the guide portion 16 during the movement of the trigger body 73. The trigger switch 50 of the wall 16a pushes the switching element 43 and the switch becomes conductive. Then, the trigger body 73 is further moved to the position of Fig. 8. Therefore, since the trigger switch 50 can be turned on before the trigger body 73 is completely pulled to the end of the stroke, even when the micro switch is used, the operational feeling is good, and the operability can be improved.

Since the difference between the stroke amount of the trigger lever 72 and the stroke amount of the trigger body 73 is larger, the switch becomes conductive when the pulling amount of the trigger body 73 is smaller, so that the difference can be obtained by adjusting the difference in the stroke amount. Pull amount.

Further, the trigger 17 is pulled, and the lower end shaft 28 of the arm portion 27 of the trigger lever 72 rotates the cam plate 30. As shown in FIGS. 2 and 7, the upper end of the cam plate 30 is coupled to the movable sleeve 11. The lower part of the locking lever 14 is engaged. Therefore, the movable sliding sleeve 11 is locked and does not move downward when burning. Further, when the trigger 17 is released after the nail is driven, the trigger 17 is released by the spring 40, and the lock is released, and the movable sleeve 11 can be moved downward together with the lock lever 14.

However, as shown above, the finger is buckled on the trigger body 73 and pulled up At this time, since the trigger lever 72 forms an arm that rotates the cam plate 30, the trigger body 73 has a tendency to be lifted and tilted before the trigger lever 72, and thus, particularly, between the trigger lever 72 and the guide portion 16, a strong occurs. Rubbing, repeating the switch, and the guide portion 16 is worn out so that the trigger body 73 cannot be properly guided, the trigger body 73 is inclined in the counterclockwise direction as shown in Fig. 9, and the corner portion 44 and the upper portion 16a of the guide portion 16 When the engagement is made, the trigger 17 cannot be completely pulled until the end of the stroke, and there is a fear that the trigger switch 50 may not be turned on.

However, the trigger body 73 and the trigger lever 72 are separately formed, and the stroke amount of the trigger lever 72 is shorter than the stroke amount of the trigger body 73, and the trigger lever 72 and the trigger body 73 are coupled by the coupling spring 86. Therefore, even if the trigger body 73 is tilted, because the stroke amount of the trigger body 73 is long, and the coupling spring 86 pushes the trigger lever 72 upward, the protrusion 78 of the trigger lever 72 can positively push the trigger switch 50 to make the conduction action. .

Further, in the embodiment, although the gas burning type driving tool is exemplified as the driving tool, the electric driving type tool can also be applied to the present invention.

Further, in the embodiment, the contact member 13 which is separated from the nail ejection protrusion 18 is described, but a contact protrusion integrally formed with the protrusion may be formed.

Although the present invention has been described in detail with reference to the specific embodiments thereof, various modifications and changes can be made without departing from the spirit and scope of the invention.

This patent specification is based on the Japanese patent application filed on September 22, 2005 (Japanese Patent Application No. 2005-276895), and filed on September 22, 2005. Japanese Patent Application (Japanese Patent Application No. 2005-276896), the entire content of which is hereby incorporated by reference.

[Industrial Applicability]

In the driving tool, the contact strike is surely prevented, and the safety is ensured, and the operability of the trigger is improved, and the switch can be surely turned on even if the guide portion is worn.

2‧‧‧Hands

11‧‧‧ movable sliding sleeve

13‧‧‧Contact members

15, 17‧‧‧ trigger

16‧‧‧Guidance Department

14‧‧‧Locking lever

50‧‧‧ trigger switch

30‧‧‧Cam plate

15a, 72‧‧‧ trigger rod

15b, 73‧‧‧ trigger body

24, 86‧‧‧Link spring

Fig. 1 is a longitudinal sectional view showing a gas burning type nailer in a non-operating state.

Fig. 2 is a longitudinal sectional view showing a gas burning type nailer in operation.

Fig. 3 is an enlarged view showing a peripheral portion of a trigger of a gas burning type nailing machine according to a first embodiment of the present invention.

Fig. 4 is an enlarged view showing a state in which the cam plate and the lock lever are combined to prevent contact strike.

Fig. 5 is a perspective view showing the engagement of the cam plate and the lock lever.

Fig. 6 is an enlarged view showing a peripheral portion of a trigger of a gas burning type nailing machine according to a second embodiment of the present invention.

Fig. 7 is an explanatory view showing the operation state of the trigger mechanism shown in Fig. 6.

Fig. 8 is an explanatory view showing a state in which the trigger mechanism shown in Fig. 6 is pulled until the end of the stroke.

Fig. 9 is an explanatory view showing an operation state in a state where the trigger body is inclined.

1‧‧‧Tool body

2‧‧‧Hands

3‧‧‧nails

4‧‧‧Blowing piston and cylinder mechanism

5‧‧‧ combustion chamber

6‧‧‧Battering cylinder

7‧‧‧Blowing piston

7a‧‧‧ upper end

8‧‧‧ drive

10‧‧‧ upper wall

11‧‧‧ movable sliding sleeve

12‧‧‧Connector components

13‧‧‧Contact members

14‧‧‧Locking lever

15(17)‧‧‧ trigger

18‧‧‧nail hitting protrusion

30‧‧‧Cam plate

N‧‧‧head nail

P‧‧‧Insert

Claims (10)

A driving tool comprising: a striking cylinder, the striking piston is arranged to be slidable in an up and down direction; a trigger driving the striking cylinder by a pulling operation; a protruding portion supplying a fastener driven by the striking piston; and a contact member to The lower end of the protruding portion is disposed in a more protruding manner; the movable sliding sleeve is coupled with the contact member and is disposed on the striking cylinder up and down; the locking rod is integrally disposed with the movable sliding sleeve at a lower portion of the movable sliding sleeve And a cam plate coupled with the trigger and rotatably disposed at a lateral position of the locking lever, the cam plate forming an engaging portion, the cam plate pressing the contact member against the driven member, and When the trigger is pulled, it is located below the lower end of the lock lever, and the engaging portion moves upward after the pull member is pulled and the contact member is pressed against the driven member. It is engaged with the lock lever on the way. The driving tool of claim 1, wherein the engaging portion is formed in a groove shape. The driving tool of claim 1, wherein the engaging portion is engaged with the lower portion of the locking rod; and the lower portion of the locking rod forms a U shape. Such as the entry tool of claim 1 of the patent scope, wherein the contact structure A piece is slidably disposed on the protrusion. The driving tool of claim 1, further comprising: a guiding portion that slidably guides the trigger; and a trigger switch disposed at the guiding portion and capable of being pushed by pulling the trigger; The trigger has: a trigger lever disposed opposite to the trigger switch; and a trigger body formed by the trigger switch formed by the trigger switch; the trigger body and the trigger lever are arranged side by side, and are coupled via a connecting spring; the trigger body The stroke amount is longer than the stroke amount of the trigger lever. A driving tool includes: a tool body having a handle; a trigger disposed at a base of the handle; a guiding portion slidably guiding the trigger; and a trigger switch disposed at the guiding portion by pulling the trigger And the trigger has: a trigger lever disposed opposite to the trigger switch, and a trigger body formed by the trigger switch formed by the trigger switch; the trigger body and the trigger lever are arranged side by side; the trigger lever and The pulling operation of the trigger body is linked; the stroke body has a stroke amount longer than the stroke amount of the trigger lever. The driving tool of claim 6, wherein the trigger lever and the trigger body are coupled via a connecting spring. For example, the entry tool of claim 6 of the scope of patent application, wherein: A long hole is formed in the trigger lever; a pin that slidably engages with the elongated hole is formed in the trigger body. For example, the driving tool of the sixth application of the patent scope, wherein the trigger opens the micro switch. For example, the driving tool of the sixth aspect of the patent application includes: a striking cylinder, the striking piston is disposed to be slidable in the up and down direction; the protruding portion is supplied with a fastener punched by the striking piston; and the contact member is protruded The lower end of the portion is disposed in a more prominent manner; the movable sliding sleeve is coupled with the contact member and is disposed on the striking cylinder up and down; the locking rod is integrally disposed with the movable sliding sleeve at a lower portion of the movable sliding sleeve; a cam plate coupled to the trigger and rotatably disposed at a lateral position of the locking lever, the cam plate forming an engaging portion, the cam plate pressing the contact member against the driven member, and When the trigger is pulled, it is located below the lower end of the locking rod, and the engaging portion, after the pulling operation of the trigger, presses the contact member against the driven member, on the way of moving the contact member upward Engage with the lock lever.