JP6753114B2 - Nailer - Google Patents

Description

The present invention relates to a nail driving machine that strikes a nail with a striking tool to drive the nail into an object.

Patent Document 1 describes an example of a nail driving machine that strikes a nail with a striking tool to drive the nail into an object. The nail driving machine described in Patent Document 1 has a piston and a driver blade as a striking tool hit by compressed air, an injection path to which a nail hit by the driver blade is supplied, and a nail housed in a magazine. It has a passage to the injection path, a tail cover as a first member, and a door member as a second member. The door member can rotate around the hinge portion as a fulcrum, and a passage is formed by the tail cover and the door member. A feed mechanism is provided on the tail cover, and a plurality of nails connected by a sheet as a connecting element are sequentially fed to the aisle by the feed mechanism. The feeding mechanism has a piston and a cylinder, and moves the nail back and forth to feed the nail into the passage. The door member is provided with a check claw, and when the feed mechanism retracts to the magazine side, the check claw prevents the nail from retracting.

Japanese Unexamined Patent Publication No. 2001-205576

When using nails of different lengths, connecting elements with different dimensions in the length direction of the nail may be used. For this reason, a plurality of parts to be attached to the second guide member may be provided according to the dimensions of the connecting element, which may increase the number of parts.

An object of the present invention is to provide a nailing machine capable of suppressing an increase in the number of parts attached to the second guide member.

The driving machine of one embodiment is a striking tool that strikes a nail supplied to an injection path with the pressure of compressed air, and a connecting body that communicates with the injection path and connects a plurality of nails and the plurality of the nails to each other. Is a nailing machine having a passage through which the passage is sent and a first guide member and a second guide member forming the passage, and the connecting body includes a first connecting body, a second connecting body, and a second. The connecting body of 3 is selectively included , and is provided in the first guide member, and is provided in the second guide member and a feeding mechanism for sequentially sending a plurality of the nails passing through the passage to the injection path. In addition, a direction that intersects with the feed direction of the nail by abutting on the first connecting body or the second connecting body having different dimensions of the base in the length direction of the nail among the connecting bodies. The first support member capable of guiding the first connecting body and the second connecting body, and the first support member provided on the second guide member and the connecting body is not in contact with the first supporting member. In the case of the connecting body of 3, the first support member has a second support member that can guide the nail in a direction intersecting the feed direction of the nail by abutting on the nail. , Different positions of the first support member abut on the first connector or the second connector, depending on the different dimensions of the base in the first connector and the second connector. guiding the first connecting body and the second connecting member, said feed mechanism, the reciprocating work feeding direction of the nail in the passage, before Symbol first support member, when the feed mechanism is retracted the said first coupling body and has a first stopper capable of preventing said second coupling member is moved, before Symbol second support member, wherein the coupling element is in the third coupling member the abuts against the nail if and when the feed mechanism is retracted, and a fourth stopper capable of preventing said nail is retracted in the feeding direction.

According to the driving machine of one embodiment, by making the support member movable with respect to the second guide member, it is possible to support the connecting bodies having different dimensions. Therefore, it is possible to suppress an increase in the number of parts attached to the second guide member.

It is an external view which looked at the nailing machine from the side. It is a vertical sectional view of a nailing machine as a side view. It is a vertical sectional view of a nailing machine as a side view. It is a side view of the state where the nail guide provided in the nailing machine is opened with respect to the tail cover. It is sectional drawing which looked at the rear view of the nail guide and the tail cover provided in a nailing machine. It is a vertical cross-sectional view which looked at the main part of a nailing machine from the side. (A) to (D) are schematic plan sectional views showing an operation of feeding a nail and a sheet. It is a vertical cross-sectional view which looked at the main part of a nailing machine from the side. (A) to (D) are schematic plan sectional views showing an operation of feeding a nail and a sheet. It is a vertical cross-sectional view which looked at the main part of a nailing machine from the side. (A) to (D) are schematic plan sectional views showing an operation of feeding a nail connected by a wire.

Hereinafter, an embodiment of the driving machine of the present invention will be described with reference to the drawings.

The driving machine 10 shown in FIG. 1 has a main body 11, and the main body 11 has a cylinder-shaped cylinder case 12 and a handle 13 protruding from the cylinder case 12. Further, a tail cover 14 fixed to the cylinder case 12 and a nail guide 15 rotatable with respect to the tail cover 14 are provided. An injection path 16 is provided in the tail cover 14, and a passage 17 is formed by the tail cover 14 and the nail guide 15. The passage 17 communicates with the injection path 16. A magazine 19 for accommodating the nail 18 is provided, and the magazine 19 is supported by the tail cover 14 and the handle 13. The feed mechanism 20 is provided on the tail cover 14, and the feed mechanism 20 supplies the nail 18 in the magazine 19 to the injection path 16.

The pressure accumulator chamber 21 is provided from the inside of the handle 13 to the inside of the cylinder case 12. The plug 22 is attached to the handle 13, and the air hose can be attached to and detached from the plug 22. Compressed air is supplied to the accumulator chamber 21 via an air hose. A trigger 23 is provided on the main body 11, and an operator operates the trigger 23.

A trigger valve 24 is provided on the handle 13. The push lever 25 is movably attached to the tail cover 14. The trigger valve 24 is operated by the operation of the push lever 25 and the operation of the trigger 23.

A cylinder 26 is provided in the cylinder case 12. A flange 27 is provided on the outer peripheral surface of the cylinder 26. The sealing member 28 is attached to the outer periphery of the flange 27. A main valve 29, a cylinder upper chamber 30, and a stopper 31 are provided in the main body 11.

The piston 32 is provided in the cylinder 26 so as to be movable in the center line A1 direction. An annular seal member 100 is attached to the outer peripheral surface of the piston 32. The seal member 100 contacts the inner peripheral surface of the cylinder 26 to form a seal surface. The striking tool 34 in which the piston 32 and the driver blade 33 are integrated is formed. The striking tool 34 is movable in the cylinder 26 in the direction of the center line A1.

The bumper 35 is arranged from the inside of the cylinder 26 to the inside of the tail cover 14. The bumper 35 is formed by molding synthetic rubber into an annular shape, and the bumper 35 has a shaft hole 36. The driver blade 33 can move in the shaft hole 36 in the direction of the center line A1. The cylinder lower chamber 37 is formed between the piston 32 and the bumper 35 in the cylinder 26. In the cylinder 26, a vent 38 is provided between the flange 27 and the bumper 35. The vent 38 penetrates the cylinder 26 in the radial direction. A return air chamber 39 is provided in the cylinder case 12 between the flange 27 and the tail cover 14. The vent 38 connects the cylinder lower chamber 37 and the return air chamber 39.

A check valve 40 is provided on the cylinder 26. The check valve 40 is a ring made of synthetic rubber. The check valve 40 is elastically deformed by the air pressure of the cylinder lower chamber 37 to open the vent 38. The check valve 40 comes into close contact with the outer peripheral surface of the cylinder 26 and closes the vent 38. In the cylinder 26, a vent 41 is provided between the vent 38 and the tail cover 14. The vent 41 penetrates the cylinder 26 in the radial direction, and the lower chamber 37 of the cylinder and the return air chamber 39 are always connected.

Next, an example of using the driving machine 10 will be described. The compressed air is supplied to the accumulator chamber 21, and the air pressure in the accumulator chamber 21 is higher than the atmospheric pressure. When no operating force is applied to the trigger 23 and the push lever 25 is away from the object, the cylinder upper chamber 30 is connected to the outside of the main body 11. The piston 32 is urged in the center line A1 direction by the air pressure of the cylinder lower chamber 37, and the piston 32 comes into contact with the stopper 31 and stops at top dead center.

When an operating force is applied to the trigger 23 and the push lever 25 is pressed against the object, the trigger valve 24 opens. Then, the pressure of the accumulator chamber 21 is transmitted to the cylinder upper chamber 30, and the piston 32 and the driver blade 33 descend. The driver blade 33 hits the nail 18 supplied to the injection path 16.

While the piston 32 is moving from the top dead center to the bottom dead center, the air in the cylinder lower chamber 37 passes through the vent 41 and enters the return air chamber 39. When the seal member 100 is located between the stopper 31 and the vent 38 in the center line A1 direction during the movement of the piston 32, the check valve 40 closes the vent 38. When the seal member 100 moves between the vent 38 and the bumper 35 while the piston 32 is moving, the check valve 40 opens the vent 38, and a part of the air in the cylinder upper chamber 30 passes through the vent 38. Enter the return air chamber 39. In this way, the air pressure in the return air chamber 39 and the cylinder lower chamber 37 rises.

Then, after the driver blade 33 hits the nail 18, when the operator releases the operating force on the trigger 23 or releases the push lever 25 from the object, the trigger valve 24 is closed and the main valve 29 is closed. The cylinder upper chamber 30 becomes atmospheric pressure.

The piston 32 collides with the bumper 35 after the driver blade 33 hits the nail 18 and reaches the bottom dead center. Further, the piston 32 moves toward the top dead center by the air pressure of the cylinder lower chamber 37, and the driver blade 33 rises together with the piston 32. The piston 32 comes into contact with the stopper 31 and stops at the top dead center of the piston 32.

Next, the structures of the feed mechanism 20, the tail cover 14, and the nail guide 15 that supply the nail 18 housed in the magazine 19 to the injection path 16 will be specifically described. The feed mechanism 20 includes a cylinder 42, a piston 43 movably provided in the cylinder 42, a feeder 44 attached to the piston 43, a pneumatic chamber 74 formed in the cylinder 42, and a compression spring for urging the piston 43. It has an 80 and a holder 81 that supports the compression spring 80. The pneumatic chamber 74 is connected to the return air chamber 39 via the passage 82. The piston 43 can move under the pressure of the pneumatic chamber 74 against the force of the compression spring 80.

The feeder 44 is rotatably attached to the piston 43 via the support shaft 77. A spring is provided to urge the feeder 44 in a direction approaching the nail guide 15 with the support shaft 77 as the center. The feeder 44, together with the piston 43, can reciprocate between the injection path 16 and the magazine 19 along the feed direction A2 of the nail 18. The feeder 44 has a plurality, that is, two feed claws 45 and 46. The feed claw 45 and the feed claw 46 are arranged at intervals along the feed direction A2. Three feed claws 45 and 46 are provided at intervals in the longitudinal direction of the nail 18. The longitudinal direction of the nail 18 is a direction parallel to the center line A1. The tail cover 14 has a first frame 47, a second frame 48, and a third frame 49 arranged at intervals in the longitudinal direction of the nail 18. When the operator supports the nailing machine 10 with the center line A1 vertical, the first frame 47 is located above the second frame 48, and the second frame 48 is located above the third frame 49.

The feeder 44 is arranged between the first frame 47 and the third frame 49, and the feeder 44 can move along the feed direction A2. The first frame 47 has a guide portion 50. The four feed claws 45, 46 located above are arranged between the first frame 47 and the second frame 48, and the two feed claws 45, 46 located below are the second frame 48 and the second frame 48. It is located between the 3 frames 49. In the side view of the nailing machine 10 shown in FIGS. 1 and 2, the feed direction A2 intersects the center line A1. The feed direction A2 is a direction perpendicular to the longitudinal direction of the nail 18.

The nail guide 15 is rotatably attached to the tail cover 14 with the support shaft 51 as a fulcrum. The support shaft 51 is arranged parallel to the center line A1. The nail guide 15 has a first frame 52 and a second frame 53 that are spaced apart in the longitudinal direction of the nail 18. The first frame 52 is arranged above the second frame 53.

A guide member 76 and a seat stopper 54 are provided between the first frame 52 and the second frame 53. A recess 55 is provided at a position where the seat stopper 54 faces the tail cover 14 in a state where the nail guide 15 is in contact with the tail cover 14 and stopped, that is, in a state where the nail guide 15 is closed. The recess 55 is arranged with a predetermined length along the feed direction A2. The recess 55 has a depth in a direction intersecting the feed direction A2. The range in which the recess 55 is formed in the longitudinal direction of the nail 18 includes the range in which the feed claws 45 and 46 located at the top are arranged.

Further, the seat stopper 54 has a first support surface 73 and a second support surface 83. The first support surface 73 forms a recess 55, and the first support surface 73 supports the sheet 66 having the dimension L1 shown in FIG. The second support surface 83 supports the sheet 66 having the dimension L2 shown in FIG. The dimensions L1 and L2 are the lengths of the nail 18 in the longitudinal direction, and the dimension L2 is larger than the dimension L1. The first support surface 73 is lower than the second support surface 83 in the direction B2. That is, in the direction B2, the second support surface 83 is located between the first support surface 73 and the tail cover 14. The first support surface 73 and the second support surface 83 are different in the arrangement position in the longitudinal direction of the nail 18, and are different in the arrangement position in the direction B2. The seat stopper 54 comes into contact with the base portion 67 of the seat at different positions according to the dimensions L3 and L4 of the base portion 67. The guide member 76 is rotatably attached to the nail guide 15 shown in FIG. 4 via a support shaft 78, and the guide member 76 is provided with a check claw 60. The guide member 76 is urged toward the tail cover 14 by a compression spring 62.

The seat stopper 54 is rotatably attached to the nail guide 15 via a support shaft 78. The seat stopper 54 can operate in the direction B2. The seat stopper 54 has three check claws 56, 57, 58. The two check claws 56 and 57 are arranged above the recess 55 and are spaced apart from each other in the feed direction A2. The check claw 58 is provided below the recess 55, specifically, at the lower end of the seat stopper 54. The seat stopper 54 is urged toward the tail cover 14 by a compression spring 59. That is, the seat stopper 54 is pushed in a direction intersecting the feed direction A2.

Further, a check claw 61 is attached to the nail guide 15. The check claw 60 is arranged above the seat stopper 54, and the check claw 61 is arranged below the seat stopper 54. The check claw 60 is urged toward the tail cover 14 by the compression spring 62, and the check claw 61 is urged toward the tail cover 14 by the compression spring 63. In the longitudinal direction of the nail 18, the range in which the check valve 60 is arranged overlaps with the range in which the first frame 47 of the tail cover 14 is arranged. In the longitudinal direction of the nail 18, the range in which the check valve 61 is arranged overlaps with the range in which the third frame 49 of the tail cover 14 is arranged.

The nail 18 has a shaft portion 64 and a head portion 65 continuous with one end of the shaft portion 64. The sheet 66 as a connecting element for connecting the plurality of nails 18 is made of synthetic resin and has flexibility. The sheet 66 has a base portion 67 arranged along the longitudinal direction of the nail 18, and a first support piece 68 and a second support piece 69 provided at both ends of the base portion 67 in the longitudinal direction of the nail 18.

The first support piece 68 and the second support piece 69 are inclined in opposite directions with respect to the base 67. A recess 70 is provided in the first support piece 68 and the second support piece 69, and the shaft portion 64 of the nail 18 is fitted into the recess 70, so that the nail 18 is supported by the sheet 66. A base 67, a first support piece 68, and a second support piece 69 are used as a set to support one nail 18. A plurality of sets are continuously formed with the base portion 67, the first support piece 68, and the second support piece 69 as one set, and an opening 71 is formed between the base portion 67 and the base portion 67.

The feed mechanism 20 can feed the nail 18 connected by a plurality of different types of sheets 66 to the injection path 16. The plurality of types of sheets 66 have different dimensions in the longitudinal direction of the nail 18. Comparing the sheet 66 shown in FIG. 5 with the sheet 66 shown in FIG. 8, the dimension L1 of the sheet 66 shown in FIG. 5 is shorter than the dimension L2 of the sheet 66 shown in FIG. The dimension L3 of the base 67 of the sheet 66 shown in FIG. 5 is shorter than the dimension L4 of the base 67 of the sheet 66 shown in FIG.
Dimension L3 is shorter than Dimension L1 and Dimension L4 is shorter than Dimension L2. Further, the total length of the nail 18 connected by the sheet 66 shown in FIG. 5 is shorter than the total length of the nail 18 connected by the sheet 66 shown in FIG. First, the operation of feeding the nail 18 connected by the sheet 66 shown in FIG. 5 will be described with reference to FIG. 7.

When the sheet 66 connecting the nails 18 is in the aisle 17, a part of the base 67 of the sheet 66 is located in the recess 55. That is, the first support surface 73 is pressed against the base 67 by the force of the compression spring 59. Further, the second support piece 69 comes into contact with the wall 72 of the recess 55. The tip of the first support piece 68 comes into contact with the guide portion 50. In this way, the sheet 66 and the nail 18 are positioned relative to the tail cover 14 and the nail guide 15 in the longitudinal direction of the nail 18. Further, the base portion 67 is pushed by the seat stopper 54, the tip of the first support piece 68 contacts the guide portion 50, and the shaft portion 64 of the nail 18 contacts the second frame 48, whereby the seat 66 and the nail 18 are separated. , Positioned with respect to the tail cover 14 and the nail guide 15 in the direction B2 intersecting the feed direction A2.

When the piston 32 is at top dead center, the air pressure in the return air chamber 39 is low. Therefore, the piston 43 of the feed mechanism 20 is urged by the force of the compression spring 80 and is stopped at the initial position as shown in FIG. When the piston 43 is stopped at the initial position, the feeder 44 is stopped at the initial position shown in FIG. 7A. The shaft portion 64 of the nail 18 is located between the feed claw 45 and the feed claw 46 in the feed direction A2. The check claws 56 and 57 are located at the opening 71 and sandwich the base portion 67 from the front and back in the feed direction A2. The check claw 58 is located behind the shaft portion 64 of the nail 18 located at the front end in the feed direction A2.

When the feed mechanism 20 feeds the nail 18 connected by the sheet 66 shown in FIG. 5, the check valve 61 does not participate in the feed and positioning of the sheet 66 and the nail 18.

When the piston 32 operates from the top dead center to the bottom dead center and the pressure in the return air chamber 39 rises, the pressure in the air pressure chamber 74 also rises. Then, the piston 43 of the feed mechanism 20 retracts from the initial position against the force of the compression spring 80, and the feeder 44 starts retracting from the initial position. Then, the feed claws 45 and 46 come into contact with the shaft portions 64 of the two nails 18 separately, the feeder 44 rotates about the support shaft 77, and the feed claws 45 and 46 are as shown in FIG. 7 (B). Each rides on the shaft portion 64.

Then, when the feed claws 45 and 46 get over the shaft portion 64, the feeder 44 rotates in the opposite direction about the support shaft 77, and as shown in FIG. 7C, the feed claws 45 and 46 move to the shaft portion. Enter behind 64 respectively. When the feeder 44 retracts, the check valves 56 and 57 sandwich the base 67, so that the sheet 66 can be prevented from retracting in the feed direction A2. Further, the shaft portion 64 is supported by the sheet 66, and the check valve 58 comes into contact with the shaft portion 64 to prevent the nail 18 from retreating in the feed direction A2.

After that, when the piston 32 rises and the pressure in the return air chamber 39 decreases, the pressure in the pneumatic chamber 74 also decreases, and the piston 43 moves toward the initial position by the force of the compression spring 80. Further, the feeder 44 also advances in the feed direction A2, and the two nails 18 are simultaneously fed by the feed claws 45 and 46 as shown in FIG. 7D, and the sheet 66 is fed.

When the two nails 18 and the sheet 66 are fed, the shaft portion 64 of the nail 18 sent from the rear is pressed against the check claw 58, and the base portion 67 that has moved from the rear is pressed against the check claw 56. Therefore, the seat stopper 54 moves away from the tail cover 14 against the force of the compression spring 59. Further, the shaft portion 64 of the nail 18 sent from the rear comes into contact with the check claw 58, the seat stopper 54 rotates about the support shaft 78, and the shaft portion 64 of the nail 18 moved from the rear is the check claw. After passing over 57, the seat stopper 54 rotates in a direction approaching the tail cover 14 due to the force of the compression spring 59 and stops.

Then, when one nail 18 located at the front end in the feed direction A2 is supplied to the injection path 16, the piston 43 and the feeder 44 stop at the initial positions. After that, when the driver blade 33 descends and hits the nail 18 of the injection path 16, the state shown in FIG. 7A is obtained.

Next, the operation of feeding the nail 18 connected by the sheet 66 shown in FIG. 8 will be described with reference to FIG. When the seat 66 connecting the nails 18 is in the aisle 17, all of the base 67 of the seat 66 is located outside the recess 55, and the second support surface 83 of the seat stopper 54 is brought to the base 67 by the force of the compression spring 59. Be pressed. Further, the first support piece 68 comes into contact with the guide portion 50, and the second support piece 69 comes into contact with the guide portion 75 of the second frame 53. In this way, the sheet 66 and the nail 18 are positioned relative to the tail cover 14 and the nail guide 15 in the longitudinal direction of the nail 18. Further, the base portion 67 contacts the seat stopper 54, the first support piece 68 contacts the guide portion 50, and the check claw 60 is pressed against the base portion 67, so that the sheet 66 and the nail 18 are brought into contact with the feed direction A2. It is positioned with respect to the tail cover 14 and the nail guide 15 in the intersecting direction B2.

When the piston 43 is stopped at the initial position, the feeder 44 is stopped at the initial position shown in FIG. 9A. The shaft portion 64 of the nail 18 is located between the feed claw 45 and the feed claw 46 in the feed direction A2. The check claws 56 and 57 are located at the opening 71 and sandwich the base portion 67 from the front and back in the feed direction A2. The check claw 61 is located behind the shaft portion 64 in the direction B2.

When the feed mechanism 20 feeds the nail 18 connected by the sheet 66 shown in FIG. 8, the check valve 58 does not participate in the feed of the sheet 66 and the nail 18.

When the feeder 44 starts to retreat from the initial position, the feed claw 45 comes into contact with the shaft portion 64 of the nail 18, the feeder 44 rotates about the support shaft 77, and the feed claw 45 is as shown in FIG. 9B. Ride on the shaft portion 64.

Then, when the feed claw 45 gets over the shaft portion 64, the feeder 44 rotates in the opposite direction about the support shaft 77, and the feed claws 45 and 46 are behind the shaft portion 64 as shown in FIG. 9C. Enter each. When the feeder 44 retracts, the seat 66 and the nail 18 do not retract in the feed direction A2.

Then, when the feeder 44 advances in the feed direction A2, the feed claw 46 pushes the nail 18 and is fed forward together with the sheet 66 as shown in FIG. 9D. When the nail 18 and the sheet 66 are fed forward, the shaft portion 64 of the nail 18 sent from the rear is pressed against the check claw 61, and the base portion 67 that has moved from the rear is pressed against the check claw 57. Therefore, the check claw 61 moves in a direction away from the tail cover 14 against the force of the compression spring 63, and the seat stopper 54 rotates in a direction away from the tail cover 14 against the force of the compression spring 59. To do. Further, the shaft portion 64 of the nail 18 sent from the rear gets over the check claw 61, and the base portion 67 moving from the rear gets over the check claw 57. Then, the check claw 61 moves and stops in the direction approaching the tail cover 14 by the force of the compression spring 63, and the seat stopper 54 rotates and stops in the direction approaching the tail cover 14 by the force of the compression spring 59. ..

Then, when one nail 18 located at the front end in the feed direction A2 is supplied to the injection path 16, the piston 43 and the feeder 44 stop at the initial positions. After that, when the driver blade 33 descends and hits the nail 18 of the injection path 16, the state shown in FIG. 9A is obtained.

As described above, when the feed mechanism 20 feeds the sheet 66 and the nail 18 having different dimensions L3 and L4 to the injection path 16, the sheet stopper 54 guides the sheet 66. The wall 72 of the seat stopper 54 positions the sheet 66 of the short dimension L3 in the longitudinal direction of the nail 18, and the guide portion 75 of the second frame 53 positions the sheet 66 of the long dimension L4 in the longitudinal direction of the nail 18. By making the seat stopper 54 movable with respect to the nail guide 15, seats 66 having different dimensions L3 and L4 can be supported. Therefore, the seat stopper 54 can be configured by a single number, and it is not necessary to divide the seat stopper 54 in the longitudinal direction. Therefore, it is possible to suppress an increase in the number of parts attached to the nail guide 15. Further, since the number of movable parts is reduced with respect to the nail guide 15, the possibility of failure can be reduced. Further, it is possible to suppress an increase in the weight of the nailing machine 10.

Next, when a plurality of nails 18 are connected by a wire 79, an example of feeding the nails 18 by the feed mechanism 20 will be described with reference to FIGS. 10 and 11. The guide member 76 pushes the shaft portion 64 of the nail 18, the shaft portion 64 is pressed against the first frame 47, the second frame 48, and the third frame 49, and the nail 18 is positioned in the direction B.

When the feeder 44 is stopped at the initial position shown in FIG. 11A, the shaft portion 64 of the nail 18 is located between the feed claw 45 and the feed claw 46 in the feed direction A2. When the feeder 44 starts to retreat from the initial position, the feed claw 45 comes into contact with the shaft portion 64 of the nail 18, the feeder 44 rotates about the support shaft 77, and the feed claw 45 is as shown in FIG. 11 (B). Ride on the shaft portion 64.

Then, when the feed claws 45 and 46 get over the shaft portion 64, the feeder 44 rotates in the opposite direction about the support shaft 77, and as shown in FIG. 11C, the feed claws 45 and 46 move the shaft portion 64. Enter behind each. When the feeder 44 retracts, the wire 79 and the nail 18 do not retract in the feed direction A2 due to the check valve 60.

Then, when the feeder 44 advances in the feed direction A2, the feed claw 46 pushes the nail 18, and the nail 18 is fed forward together as shown in FIG. 11 (D). When the nail 18 is fed forward, the shaft portion 64 of the nail 18 fed from the rear is pressed against the check claws 58 and 61. Therefore, the seat stopper 54 rotates in a direction away from the tail cover 14 against the force of the compression spring 59. Further, the check claw 61 moves away from the tail cover 14 against the force of the compression spring 63.

Further, the shaft portion 64 of the nail 18 sent from the rear gets over the check claws 58 and 61. Then, the seat stopper 54 rotates in a direction approaching the tail cover 14 due to the force of the compression spring 59 and stops. Further, the check claw 61 moves and stops in a direction approaching the tail cover 14 by the force of the compression spring 63.

Then, when one nail 18 located at the front end in the feed direction A2 is supplied to the injection path 16, the piston 43 and the feeder 44 stop at the initial positions. After that, when the driver blade 33 descends and hits the nail 18 of the injection path 16, the state shown in FIG. 11A is obtained.

The feed mechanism 20 can feed the nails 18 connected by the sheets 66 having different dimensions L3 and L4, and can also feed the nails 18 connected by the wires 79. Note that FIG. 10 shows an example in which the wire 79 is located between the feed claws 45 and 46 and the second frame 48 in the longitudinal direction of the nail 18, but the wire 79 is arranged in the longitudinal direction of the nail 18. The place is not limited.

The sheet 66 and the wire 79 described in the embodiment are connected bodies, the sheets 66 having different dimensions L3 and L4 are the first connected body and the second connected body, and the wire 79 is the third connected body. Yes, the tail cover 14 is the first guide member, the nail guide 15 is the second guide member, the seat stopper 54 is the first support member, the guide member 76 is the second support member, and the wall 72 is the second support member. 1 Positioning part, guide part 75 is a second positioning part, check claws 56 and 57 are first stoppers, check claw 58 is a second stopper, and check claw 61 is a third stopper. Yes, the reverse stop claw 60 is the fourth stopper, the compression spring 59 is the first urging mechanism, the compression spring 63 is the second urging mechanism, and the compression spring 62 is the third urging mechanism. The 1 support surface 73 and the 2nd support surface 83 are at different positions.

The nailing machine is not limited to the above embodiment, and can be variously changed without departing from the gist thereof. For example, the nail may have a structure having only a shaft portion without a head. The shape and structure of the sheet may be designed according to the outer diameter of the shaft portion of the nail and the total length of the nail.

10 ... nailing machine, 14 ... tail cover, 15 ... nail guide, 16 ... injection path, 17 ... passage, 18 ... nail, 20 ... feed mechanism, 34 ... striking tool, 51 ... support shaft, 54 ... seat stopper, 58 , 60, 61 ... Check claw, 59, 63 ... Compression spring, 66 ... Seat, 67 ... Base, 72 ... Wall, 73 ... First support surface, 75 ... Guide part, 83 ... Second support surface, A2 ... Feed Direction, B2 ... direction, L3, L4 ... dimensions.

Claims (8)

A striking tool that strikes a nail supplied to an injection path with the pressure of compressed air, a passage that communicates with the injection path, a plurality of nails, and a connecting body that connects the plurality of nails are sent, and the passage. A nailing machine having a first guide member and a second guide member to be formed.
The connecting body selectively includes a first connecting body, a second connecting body, and a third connecting body.
A feeding mechanism provided on the first guide member and sequentially feeding a plurality of the nails passing through the passage to the injection path.
The nail is provided by abutting on the first connecting body or the second connecting body, which are provided on the second guide member and have different dimensions of the base of the connecting body in the length direction of the nail. A first support member capable of guiding the first connecting body and the second connecting body in a direction intersecting with the feeding direction of
When the connecting body is provided on the second guide member and the connecting body is the third connecting body to which the first supporting member is not contacted, the contact with the nail causes the nail to be fed in the feed direction. A second support member capable of guiding the nail in the intersecting direction,
Have,
In the first support member, the position of the first support member is different depending on the different dimensions of the base of the first connecting body and the second connecting body. The first connecting body and the second connecting body are guided by abutting against the connecting body.
The feed mechanism reciprocates in the feed direction of the nail in the passage .
Before Symbol first support member, when the feed mechanism is retracted, having a first stopper capable of preventing said first coupling member and said second coupling member is moved,
Before Stories second support member, wherein the coupling element is brought into contact with the nail when the a third coupling body, and, when the feed mechanism is retracted, said nail is retracted in the feeding direction A nailing machine having a fourth stopper capable of preventing. The nailing machine according to claim 1, wherein the first support member has a second stopper capable of preventing the nail from moving when the feeding mechanism retracts. 2. The second guide member has a third stopper capable of preventing the movement of the nail when the second stopper cannot prevent the nail from moving when the feeding mechanism retracts. The described nailing machine. The nailing machine according to any one of claims 1 to 3, wherein a first urging mechanism for urging the first support member toward the first guide member is provided. The nailing machine according to claim 3, further provided with a second urging mechanism for urging the third stopper toward the first guide member. The nailing machine according to any one of claims 1 to 5, which is provided with a third urging mechanism for urging the second support member toward the first guide member. The nailing machine according to any one of claims 1 to 6, wherein the first support member and the second support member are rotatable about a support shaft with respect to the second guide member. The first guide member forms the injection path and forms the injection path.
The second guide member can rotate about the support shaft with respect to the first guide member.
The nailing machine according to any one of claims 1 to 7, wherein the passage is formed in a state where the second guide member is fixed to the first guide member.

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