TW592908B - Blank shot preventing mechanism for nailer - Google Patents

Abstract

The objective of this invention is to prevent a blank shot reliably irrespective of the size of a nail and the position of a nailhead. The solution of this invention is that a base end of a first blank shot preventing member 28 is rotatably arranged on a trigger lever 16. A second blank shot preventing member 29 is slidably arranged so that an upper end thereof adjacent a free end of the first blank shot preventing member is movable between a first position wherein it supports up the free end of the first blank shot preventing member, and a second position wherein it does not support up the free end of the first blank shot preventing member. A third blank shot preventing member 25 is arranged in a position opposing a lower end of the second blank shot preventing member, and is movable in a nail supplying direction of a magazine 13 so as to move, when engaging a pusher 24, to an actuating position from an initial position wherein it is located under a lower end face of the second blank shot preventing member to maintain the second blank shot preventing member in the first position. The third blank shot preventing member, when in the actuating position, retracts from under the lower end face of the second blank shot preventing member to permit the second blank shot preventing member to move to the second position.

Description

592908 1 -----I »· V. Description of the invention ο [Technical field to which the invention belongs] The present invention relates to a method with air strike prevention and a method that does not have a method of nailing by being beaten or beaten. Machine, special machine contact (stuck) of the nailing machine ★ t like to start the nailing [knowledge technology] two # prevention mechanism. For a nailing machine provided with a front end of the nose that protrudes toward the direction in which the nails are driven out, the following air nailing nails are used from the rear. Elastically push the push of the finished nail ^, which will advance while nailing Kunzi, and when the nail: the needle in the D = = will touch the member before sliding the structure = the push rod, and even if It is because the trigger lever is operated by J: & the locked connector does not move, so the nailer will not be started. The contact structure set for the queen [problems to be solved by the invention] The problem of the Suan mechanism is to perform continuous nailing, especially by the operation of the object being driven, so when the nail in the magazine disappears ^ ⑦ 在The actuating position can't be entered if it is in contact with the contact member. =, 卩 = the protruding part of the push rod ... there is no 4 entry = hit in i :; when the nailing is continued, if ... Object. The contact member, which becomes unnecessary due to its function, cannot function. In addition, unloaded cores require air strike prevention mechanisms. The nailing machine for the contact members of the table, \\ 3l2 \ 2d · code \ 9] -〇8 \ 9]] l] 〇35.ptcj Page 5 592908 5. Description of the invention (for the nails in the box (finish) is placed on the uppermost mouth, and the root (sign) is square, but the nails are different, except for the nailing machine of the present invention, the size of the nailing machine of the present invention is changed to the strike prevention machine; j [The main point of solving the problem is to use the In the above-mentioned Banshudi 2 components, at the same time can be moved on the net and the first position; moreover, the position of the lower end is moved, and the configured component is maintained in a nailing machine that is formed into J-shaped spikes. The setting of the nail is different from the above-mentioned finished UT tip = why the size of the pipe is often equipped: the upper == structure is formed on the nail E to open a ":" contact member to prevent air strikes The signal is hidden; for Yuangong nails, the nails in nail E are arranged at the position of the lower nail head. Because the size of the nails used is a certain length, the length of the nails used is 樯 ,,-, r 疋Except for the model, for example, the problem that Jian Dingzha cannot distribute on top of nail E is to provide a prevention mechanism. Nail head two: The second one is equipped with a contact member that changes and can also reliably prevent the set of nails used in the premises. The two-strike nailing machine's empty means] The air strike prevention of the present invention that overcomes the subject described above is based on the above. The starting mechanism of the drive mechanism is structured, and its features are arranged so as to be rotatable. The base end portion of # is pivotally connected to its upper end and is arranged near the free end of the first member which is slidable. The free end of the ditch is supported at the top: the first position of the H-party is provided with a third member, which is moved freely between the two positions, and at the same time upward along the above face 2The initial position of the lower end position of the lower side of the component is shifted from the above position]:

592908 V. Description of the invention (4) '---- m describes the embodiment of the present invention with the embodiment shown in the figure according to the figure. The figure shows a nailing machine 10 provided with an air strike prevention mechanism according to an embodiment of the present invention, and a hollow housing 12 integrally formed with a grip portion 11 accommodates a drive mechanism that is not shown in the figure. The piston / cylinder mechanism, and the above-mentioned driving mechanism of the nail, will be loaded into the nail of the nail box 13 (supported between the rear end portion of the grip portion and the nose portion forming the shooting outlet of the nail! 4), The above-mentioned nail shooting outlet is shot toward the target to be driven in. The compressed air supplied through the connector (pl ug) 5 connected to the compressed air supply source is guided by the operator by operating the trigger lever 16 arranged at the base of the grip section 1 to the above. The piston is driven in the cylinder of the driving mechanism, and the driver connected to the piston is actuated in the shot of the nail in the nose, and the nail that is supplied to the nail in the nail ejection outlet is driven out from the nail ejection outlet. On the τ part of the trigger lever 丨 6, there is formed an air strike prevention mechanism 2 that will make the operation of the trigger lever ineffective when the nails in the magazine 13 are gone, and will not allow the nailer to start. Yin Cang explained the first embodiment of the air strike prevention mechanism according to FIGS. 2 to 5. The magazine accommodating a plurality of nails connected to each other by f is a magazine body 22 that is fixed to the front end portion of a wear plate 21 that constitutes a nose portion 14 and is supported by the magazine body 22 The slider 23 is formed in a freely sliding shape. By sliding the slider 23 rearward with respect to the magazine main body 22, the side of the magazine main body is opened to perform nail loading. What's more, nail! The main body 22 is provided with a nail that can be engaged with the tail of the connecting nail filled in the nail box 丨 4, and the connecting nail is pushed forward, and the front nail is supplied into the shooting outlet of the nose 14 Putter 2 4.

C: \ 2D-CODE \ 91.〇8 \ 91111〇35.ptd Page 8 592908 V. Description of the invention (5) The third side of the nail E main body 22 is provided with a third section configured to slide along the side of 22 The air strike prevention member 25 ® The front end portion of the main body member 25 is formed at a substantially right angle. The front end = the prevention member is placed facing the push rod 24. A y joint 24a protruding forward is formed on the push rod 24. The protrusion 24a can be in contact with the third air strike prevention structure portion 25a. The air strike prevention structure box is spring-tipped by a spring 26 22 The rear of the camera is pushed and pressed against the camera 3, and moves forward by abutting on the protrusion 24a of the push rod 24 described above. Pushing the protrusion 24a, all the nails in the nail box 13 will be driven out of the nose 丨 4, and when the nail g 1 3 is moved to a position where the nail becomes no longer, it will be connected with the upper ^ air strike prevention member 25 The front end portion 25a of the frame is engaged, and the ^ th strike ^ stop structure = 25 is moved forward. In addition, the urging force of the spring 26 is set to be much smaller than the urging force of the push rod 24 to push the nails in the magazine toward the shooting outlet, so as not to hinder the action of the push rod 24 to supply the nails. # The base end portion of the Jth air strike prevention member 28 for triggering the trigger valve lever 27 of the nailing machine 10 to operate is pivotably supported on the trigger lever 16 in a rotatable manner. The rod 16 is rotatably mounted on the base of the grip 11 of the nailing machine 10. Upper part 2 9 a The second air strike prevention member 29 disposed on the lower side facing the free end of the first air strike prevention member 28 is supported on the magazine body 22 so as to be able to slide freely in the vertical direction. The lower end portion 2 9 b of the second air strike prevention member 29 is disposed so as to face the rear end portion 25 b of the third air strike prevention member 25. The second air strike prevention member 29 is constantly urged upward by the spring 30. When the trigger lever 16 is not operated, the lower end portion 2 9 b of the second air strike prevention member 29 is maintained. In the 3rd air strike defense

C: \ 2D- (DDE \ 91 -〇8 \ 9l 111035 .ptd page 9 592908 V. Description of the invention (6) The rear end portion of the stop member 2 5 is not in contact. The air strike prevention member 25 borrows Moved by the pusher 24; reduce when the third act. Set the second air strike prevention member 2 to resist the wrong weight is set to be far higher than the upper operation of the trigger 297 of the trigger The spring-correcting anti-hitting correcting member 28 is not operated, and the valve rod of the trigger is small. The first air end side can push the second air strike prevention member 29 downward / downward, and its freedom is as shown in FIG. 4. And Figure 5 to explain the above-mentioned actual operation. Figure 4 shows the wide ηπ of the nail retaining mechanism in the nail box 14 gt 7 1 4 door, and the putter 24 is the nail £ = Μ + t When the shaft engages and pushes' & the protrusion that is 20% of the putter M ... does not contact the front of the third air strike prevention member 25 :: 25a. Therefore, the 'back of the third air strike prevention member holder' The end portion w is urged by the spring 26 to be disposed below the end portion 2 9 b under the second air strike prevention member 29. ^ The second air strike prevention is in a state where the trigger lever 16 is not operated. Building 29 will The pop-up sheet 3 0 is often arranged above, the second air strike prevention member 29 is dead, the portion 29a is in contact with the free end portion of the first air strike prevention member 28, and 4 the first air strike prevention member The free end side of the member 28 is turned upwards. The second member for preventing air strikes 2 9 is constantly urged upward by a spring 3 0, and the second strike can be prevented when the trigger lever 16 is not operated. The lower end of the member 29 is maintained not to be in contact with the third air strike prevention member 25. When the trigger lever 16 is pulled, it is supported on the base end side of the first air strike prevention member 28 of the trigger lever 16 Will move upward and the center of the first air strike prevention member 2 8 will be in contact with the trigger valve stem 27. Since an operating load such as compressed air pressure is applied to the trigger valve stem 27, the first Air strike prevention Μ C: \ 2D-OODE \ 9l-O8 \ 911I1035.ptd Page 10

592908

V. Description of the invention (7) The central portion of the use member 28 will be received by the trigger valve rod 27, and with the rotation of the trigger rod 16, the first! The free end side of the air strike prevention member moves downward. As a result of this movement, the second air strike preventing member 29 is yellow 3. Moving downward, the lower t 29b of the second air strike prevention structure abuts on the rear end portion 25 of the third air strike prevention member 25 to stop and descend. Therefore, the first air strike prevention member The free end of 28 will be supported, and by pulling the trigger lever 16, the 1st air strike prevention center will be turned as the center, and the center of the first air strike prevention structure will be rotated. Will move upwards, and push the trigger valve lever 27 upwards to start a ::! 51 when the last nail in the small box 13 is driven into, 'at 2 ^ a of the push rod 24 and Λ from 243 The front end portion of the third air strike prevention member 25 is -1. 瓖 The third air strike prevention member 25 is pressed / moved against the spring Λ against the spring 26. The rear end portion of the third air strike prevention member 25 is to prevent the second air strike prevention: == = the lower position is retracted, and the downward movement is released. With the restriction that the member 29 moves downwards, it can be turned from Α @The member 28 will rotate, and the central part and the trigger valve lever 27 prevent the member 29 from forming a second pressure. Since the second air strike portion 25b has been moved forward, and: ⑽: f / lower end portion 29b of the rear end of the strike prevention member 25, the heart will not accept the second air strike prevention member 29 to make the second air The impact prevention member 29 is moved downward.

C: \ 2D-C0DE \ 91-08 \ 911H035.ptd Page 11 592908 V. Description of the invention (8) By this means, the first air-strike prevention member will rotate with the center portion in contact with the trigger valve stem 27 as the center. Without operating the trigger valve stem 2 7. Therefore, the nailing machine will not be activated, but will play a role in preventing air strikes. A second embodiment of the present invention will be described with reference to FIGS. 6 to 8. In the present embodiment, 'a second air strike preventing member 3 1 which can be moved up and down freely is arranged below the free end of the first air strike preventing member 28 supported by the trigger lever 16, and the second space The lower end portion 3b of the impact prevention member 31 passes through the opening 32 formed in the body 22 and enters the nail box 13. The portion facing the lower end 31b of the 13 member 31 is pivoted The shaft 34 supports a third air strike preventing member 33 that is freely rotatable. The-part of the preventive member 33 is inserted into the nail-filled nails. •: It can be engaged with the nail shaft part filled in the nail box 丨 3. , And = —inside ', the third air gap prevention member 33- "the nail shaft contacts and rotates around the pivot 34," the third air strike s two V, ... toward the second air strike prevention structure:: In this way, it is possible to restrict the second air strike prevention member: the end support is at the upper position, ... ef: the strike prevention member 28 is free to start the nailer. The operation of the auxiliary trigger lever 27 is effective and the All the nails in the nail E13 are driven to make the nail 酊 ... ^ The strike prevention member 33 will be rotated by the elastic second 2 3 when it is empty, and the 3rd air strike prevention will be as deep as The above-mentioned second air strike prevention member 31, member 33 will be taken from this, and the second air strike prevention member 3 may :: 3 move downwards? Second movement, because of borrowing C: \ 2D ^ COOE \ 9U〇mnn〇35 .pid Page 12 592908 V. Explanation of the invention (9) By pulling the trigger lever 16 according to the movement of the free end of the first air strike prevention member 28, the second air strike prevention member 31 will move downward, so , It is possible to make the first air strike prevention member 28 ineffective for the operation of the trigger valve rod 27 and not start the nailer. 10 Nailer 11 Grip 12 Housing 13 Nail box 14 Nose 15 Plug (p 1 ug) 16 Trigger lever 20 Air strike prevention mechanism 21 Wear plate 22 Nail box body 23 Slide 24 Pusher 24a Protrusion 25 Third air strike prevention member 25a Front end portion 25b Rear end portion 26 Spring 27 Trigger valve lever 28 First air strike prevention member

C: \ 2D-CDDE \ 91-08 \ 91111035.ptd Page 13 592908 V. Description of the invention (10) 29 Second air strike prevention member 29a Upper end portion 29b Lower end portion 30 Spring 31 Second air strike prevention member 32 Opening 33 3rd air strike prevention member 34 Pivot 35 Spring

C: \ 2D-OODE \ 91-O8 \ 91111035.ptd Page 14 592908 Brief Description of Drawings Figure 1 is a side view of a nailing machine in which the air strike prevention mechanism of the present invention has been implemented. Fig. 2 is a perspective view in which a part of a main part of an air strike preventing mechanism of the nailing machine similar to that in Fig. 1 is cut away and displayed. Fig. 3 is a longitudinal sectional view taken along the line A-A in Fig. 1. Fig. 4 is a longitudinal sectional side view showing a state in which nails remain in a magazine of the same air strike preventing mechanism as in Fig. 1; Fig. 5 is a vertical side view showing a state in which the nails in the same magazine as in Fig. 4 are absent. Fig. 6 is a perspective view showing a part of the main part of the air strike preventing mechanism according to the second embodiment of the present invention by cutting a section and showing it. Fig. 7 is a longitudinal back view of a state where nails remain in the magazine of the embodiment of Fig. 6; Fig. 8 is a longitudinally cutaway rear view of a state in which nails in the same magazine as in Fig. 7 are absent.

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Claims (1)

592908 6. The scope of the patent application is driven by the power of compressed air, etc., and the drive mechanism that drives the nail in the ejection port from the ejection port by the drive; and a trigger lever that can be operated by hand to start the drive mechanism The nailing machine is characterized in that: the base end of the first member of the first member for starting the driving mechanism is connected to the trigger lever to be configured to be rotatable, and a second member that is slidable is also provided, and the upper end thereof It is arranged near the free end of the first member, and can be freely between a first position where the free end of the first member is supported above and a second position where the free end of the first member is not supported above. Move; the lower end of the second member is entered into the magazine from the opening formed in the magazine, and a third member is arranged in the magazine to be rotated by engaging with the nail in the nail holder, so that the first The lower ends of the two members are arranged to face the third member. C: \ 2D-C0DE \ 91-08 \ 91111035.ptd Page 17