Driving tool

Abstract

The invention provides a driving tool. An extending portion (16d) extending from a rear guide (16b) of the head portion (15) is joined to the cartridge body (21) by a joining screw (28) above the driving direction. An elastic member (29) is provided between the rear guide (16b) and the cartridge body (21) below the engagement screw (28) in the driving direction. Vibration of the cartridge body (21) is absorbed by the elastic member (29). The elastic member (29) is integrally provided with a shock-receiving part (29b) for buffering the shock at the upper moving end position of the propeller. Therefore, the nail box can be jointed with the machine head part of the driving tool without shaking, and the impact of the upper moving end position of the propeller can be alleviated.

Description

Technical Field

[0001] The present invention relates to a driving tool for driving a driven object into a driven material. Background Art

[0002] Patent documents 1 and 2 disclose a driving tool. A machine head is provided at the front of the driving direction of the driving tool, and the machine head has an ejection port for driving parts. A magazine is connected to the machine head, and the magazine can accommodate a plurality of driving parts. The driving parts accommodated in the magazine are pushed in the feeding direction by a pusher, for example, and are supplied one by one to the driving channel of the machine head. [Prior art literature] [Patent Document]

[0003] Patent Document 1: Japanese Patent Publication No. 3558884 Patent Document 2: Japanese Patent Publication No. 6766727 Summary of the invention [Technical problem to be solved by the invention]

[0004] The upper part of the nail magazine (the top end in the feeding direction) is assembled to the machine head by threaded engagement via an elastic component for absorbing vibration. Different from the vibration absorption for assembly, an elastic component for absorbing the impact at the rising end position of the pusher is installed on the upper part of the nail magazine or the pusher. The present invention can reduce the number of parts and reduce costs by compactly arranging an elastic component having a vibration absorption function between the nail magazine and the machine head and a shock absorption function of the pusher at the joint between the two. [Technical solutions for solving technical problems]

[0005] According to a technical solution of the present invention, the driving tool, for example, comprises a tool body, a machine head and a nail magazine, wherein the machine head is arranged on the tool body and has an ejection port for ejecting the driven parts; and the nail magazine accommodates the driven parts. The driving tool, for example, comprises a coupling component for coupling the nail magazine to the machine head. The driving tool, for example, comprises an elastic component located between the machine head and the nail magazine at a position lower than the coupling component in the driving direction.

[0006] Therefore, the joining member and the elastic member are compactly arranged, and the number of parts can be reduced and the cost can be reduced.

[0007] According to another technical solution of the present invention, the driving tool, for example, has a tool body, a machine head and a nail magazine, wherein the machine head is arranged on the tool body and has an ejection port for ejecting the driven piece; the nail magazine accommodates the driven piece. The driving tool, for example, has a pusher for pushing the driven piece accommodated in the nail magazine toward the machine head. The driving tool, for example, has a joint and an elastic component, wherein the joint joins the nail magazine to the machine head, and the elastic component is arranged between the machine head and the nail magazine. For example, the elastic component has a vibration absorbing part and an impact bearing part as one component, wherein the vibration absorbing part absorbs the vibration of the nail magazine relative to the machine head, and the impact bearing part abuts against the pusher when the pusher reaches the top end of the feeding direction of the driven piece.

[0008] Therefore, an elastic member having a vibration absorbing function between the magazine and the nose portion and a shock absorbing function of the pusher is compactly arranged at the joint portion between the magazine and the nose portion, thereby achieving a reduction in the number of parts and a reduction in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is the left side view of the driving tool. Figure 2 yes Figure 1 The Ⅱ-Ⅱ section view in FIG. 1 is a longitudinal section view of the tool body. This figure shows the driver in the standby position. Figure 3 This is a right side view of the driving tool. This figure shows the state where the right half shell is removed to expose the inside. Figure 4 It is the left view of the machine head and nail magazine. Figure 5 It is a left view of the joint of the nail magazine relative to the head of the machine. Figure 6 yes Figure 4 The VI-VI section view in the figure is a cross-sectional view of the nail box. Figure 7 This is a left side view of the propeller in the forward position relative to the nose of the aircraft. Figure 8 It is a three-dimensional exploded view of the elastic component and the mounting part. [Explanation of Reference Numerals] W: material to be driven; t: driven part; 1: driving tool; 2: driver; 2a: engaging part; 3: grip; 4: switch operating handle; 4a: switch body; 5: battery installation part; 6: battery; 7: fixing screw; 8: controller; 10: tool body; 11: body shell; 11L: left split shell; 11R: right split shell; 12: cylinder; 13: piston; 14: pressure storage chamber; 15: machine head; 16: driver guide; 16 a: front guide; 16b: rear guide; 16c: driving channel; 16d: extension (upper side); 16e: extension (lower side); 16f: threaded hole; 16g: mounting portion; 16h: engaging wall; 16i: upper surface; 17: contact arm; 17a: dial; 17b: compression spring; 18: ejection port; 19: lower moving end damper; 20: nail magazine; 21: nail magazine body; 21a: receiving portion; 21b: head receiving portion; 21c: Shaft receiving portion; 21d: bottom; 21e: groove; 21f: loading port; 21g: upper wall; 21h: lower wall; 21i: bottom; 22: leaf spring; 22a: top end of spring coil; 23: pusher; 24: pusher claw; 25: retainer; 25a: guide edge (upper side); 25b: guide edge (lower side); 25c: abutment surface; 26: guide rail (upper side); 27: guide rail (lower side); 27a: bottom surface; 27b: first surface ; 27c: the second surface; 28: the joining screw; 29: the elastic component; 29a: the engaging portion; 29b: the impact bearing portion; 29c: the connecting portion; 29d: the protruding portion; 29e: the bearing surface; 29f: the groove portion; 30: the lifting mechanism; 31: the electric motor; 32: the reduction gear set; 32a: the output shaft; 33: the wheel portion; 33a: the avoidance area; 34: the engaging portion; 34F: the initial engaging portion; 34E: the final engaging portion; 35: the mechanism housing. DETAILED DESCRIPTION

[0010] In one or more embodiments, for example, the machine head has an extension portion extending toward the nail magazine from above the driving direction. For example, the extension portion has an upper surface in contact with the surface of the nail magazine. For example, the extension portion is engaged with the nail magazine by a coupling component in a state where the upper surface is in contact with the surface of the nail magazine. Therefore, when the nail magazine is assembled, the reaction force of the elastic component causes the extension portion to engage with the nail magazine in a state where the upper surface is in contact with the surface of the nail magazine, thereby positioning the nail magazine at the machine head with high precision. Accordingly, the driving parts are stably supplied from the nail magazine to the machine head.

[0011] In one or more embodiments, for example, the number of the joining member is one. Therefore, it is possible to simplify the assembly work and reduce the weight of the driving tool.

[0012] In one or more embodiments, for example, the nail magazine has a pusher for pushing the received driven piece toward the head of the machine. For example, the elastic component has an impact receiving portion, which abuts against the pusher when the pusher reaches the top end in the feeding direction of the driven piece. Therefore, the impact when the pusher reaches the top end is absorbed, thereby improving the durability of the driving tool.

[0013] In one or more embodiments, for example, the nail magazine has a guide rail for guiding the pusher in the feeding direction of the driven piece. For example, the elastic component is arranged on the guide rail. Therefore, the elastic component is compactly arranged.

[0014] In one or more embodiments, for example, the guide rail has a bottom surface facing the front surface of the thruster in the driving direction. For example, the guide rail has a first surface and a second surface, the first surface standing upright from the bottom surface along the left surface of the thruster, and the second surface standing upright from the bottom surface along the right surface of the thruster. For example, at least a portion of the elastic component is arranged in the area formed by the bottom surface, the first surface and the second surface. Therefore, at least a portion of the elastic component is compactly arranged in the U-shaped guide rail.

[0015] In one or more embodiments, for example, the elastic member is mounted on the bottom surface of the guide rail in a pressed state. Therefore, the elastic member is held on the guide rail in a non-vibrating manner.

[0016] In one or more embodiments, for example, the impact receiving portion has a receiving surface that contacts the pusher. For example, the receiving surface is inclined relative to the moving direction of the pusher in such a manner that the force from the pusher received by the impact receiving portion is pressed against the bottom surface of the guide rail. Thus, the elastic member is prevented from detaching from the guide rail.

[0017] In one or more embodiments, for example, the elastic member has a receiving surface of the impact receiving portion that contacts the thruster and a groove portion parallel to the receiving surface. Therefore, the impact absorbing performance of the receiving surface can be improved.

[0018] In one or more embodiments, for example, the tool body has a driver for striking the driven object and a piston connected to the driver. For example, the compressed gas generated by the movement of the piston in the direction opposite to the driving direction causes the piston to move in the driving direction. Therefore, in a gas spring type driving tool that uses the thrust of the compressed gas as the driving force, the elastic component is compactly arranged between the machine head and the nail magazine.

[0019] In one or more embodiments, for example, the nail magazine spans and is joined to the nose and the tool body. Therefore, in the gas spring type driving tool, the nail magazine is supported in a more secure manner without shaking. [Example]

[0020] In the embodiment of the present invention, as an example of the driving tool 1, a gas spring type driving tool is illustrated, which uses the air pressure of the pressure storage chamber above the air cylinder as a thrust for driving the driving member t. The driving member t is, for example, a rod-shaped nail. In the following description, the driving direction of the driving member t is set as downward, and the direction opposite to the driving direction is set as upward. The user of the driving tool 1 Figure 1 The center is located on the right side (handle 3 side) of the driving tool 1. The side near the user is defined as the rear side (user side), and the side opposite to the near side is defined as the front side. In the left-right direction, the user holding the handle 3 is used as the reference.

[0021] like Figures 1 to 3 As shown, the driving tool 1 has a tool body 10. The tool body 10 has a main body shell 11 made of resin. The main body shell 11 has a left-right split structure in which the left and right split shells 11L and 11R are facing each other and threadedly connected. A cylinder 12 is accommodated in the main body shell 11. The piston 13 is accommodated in the cylinder 12 in a manner that can reciprocate up and down. The long driving tool 2 is engaged with the center of the lower surface of the piston 13. The lower side of the driving tool 2 enters the driving channel 16c described later. The upper part of the cylinder 12 above the piston 13 is connected to the pressure storage chamber 14. Compressed gas such as air is sealed in the pressure storage chamber 14. The air pressure of the pressure storage chamber 14 acts as a thrust to move the upper surface of the piston 13 downward.

[0022] A machine head 15 is provided at the lower part of the tool body 10. The machine head 15 has a driver guide 16 and a contact arm 17. The driver guide 16 has a front guide 16a at the front side and a rear guide 16b at the rear side. The front guide 16a and the rear guide 16b are joined to each other to form the driver guide 16. A driving channel 16c is formed between the front guide 16a and the rear guide 16b. The driving channel 16c is connected to the inner peripheral side of the cylinder 12. The driver 2 enters the driving channel 16c in a manner that it can reciprocate up and down.

[0023] The contact arm 17 is supported around the driver guide 16 in a manner that allows vertical displacement. The contact arm 17 extends upward from around the lower end (injection port 18) of the driver guide 16. Figure 3 As shown in FIG. 1 , the contact arm 17 is urged toward the lower disconnected position by the compression spring 17 b. In the disconnected position, the lower end of the contact arm 17 is located below the ejection port 18 .

[0024] The triggering operation of the switch operating handle 4 is made effective by pressing the contact arm 17 against the driven material W to relatively move it upward (on operation). A dial 17a for adjusting the driving depth is provided below the compression spring 17b. By rotating the operating dial 17a, the disconnected position of the contact arm 17 can be displaced in the up-down direction. Accordingly, the stroke of the contact arm 17 is changed to change the position of the ejection port 18 relative to the driven material W during the on operation. Accordingly, the driving depth of the driven part t relative to the driven material W is switched.

[0025] like Figure 1 As shown, a nail magazine 20 is connected to the rear surface side of the machine head 15. A plurality of driving pieces t are loaded in the nail magazine 20. The nail magazine 20 has a nail magazine body 21 and a pusher 23, wherein the nail magazine body 21 accommodates a plurality of driving pieces t, and the pusher 23 pushes the accommodated driving pieces t toward the driving channel 16c of the machine head 15. One driving piece t supplied from the nail magazine body 21 to the driving channel 16c by the pusher 23 is ejected from the ejection port 18 by the downwardly moving driving piece 2.

[0026] A grip 3 for the user to hold is provided on the rear surface side of the tool body 10. The grip 3 has a split structure in which left and right grip shells 3L and 3R are integrally provided with the main body shell 11 and face each other and are threadedly engaged. A switch operating handle 4 is provided on the front lower surface of the grip 3, and the switch operating handle 4 is used for the user to start the operation by pressing the fingertips. Figure 3 As shown, a switch body 4a is installed above the switch operating handle 4. When the switch operating handle 4 is pulled upward, the switch body 4a is turned on. When the switch body 4a is turned on, power is supplied to the lifting mechanism 30 described later.

[0027] like Figure 3 As shown, a battery mounting portion 5 is provided at the rear of the handle 3. A battery 6 is mounted on the battery mounting portion 5. The battery 6 is slid downward and mounted on the battery mounting portion 5. The mounted battery 6 is slid upward and removed from the battery mounting portion 5. The battery 6 is removed from the battery mounting portion 5 and charged with a separately prepared charger, thereby being able to be used repeatedly. The battery 6 has the versatility to be used as a power source for other electric tools. The electric power of the battery 6 is used as a power source to operate the electric motor 31 of the lifting mechanism 30.

[0028] A rectangular flat controller 8 is installed in the battery mounting portion 5. The controller 8 is arranged to extend vertically along the front surface side of the mounted battery 6. The lifting mechanism 30 is operated by turning on the switch operating handle 4 and the contact arm 17 to start the driving operation. The operation of the electric motor 31 of the lifting mechanism 30 is mainly controlled by the controller 8.

[0029] like Figure 2 As shown, a lower moving end damper 19 is arranged at the lower part of the cylinder 12, and the lower moving end damper 19 is used to absorb the impact at the lower moving end of the piston 13. The lower side of the driver 2 enters the driving channel 16c through the inner peripheral side of the lower moving end damper 19. The driver 2 moves downward in the driving channel 16c due to the air pressure of the pressure storage chamber 14 acting on the upper surface of the piston 13. The top end (lower end) of the driver 2 moving downward in the driving channel 16c strikes a driving part t supplied to the driving channel 16c. The piston 13 reaches the lower moving end, causing the struck driving part t to be ejected from the ejection port 18. The ejected driving part t is driven into the driven material W.

[0030] A lifting mechanism 30 is provided below the handle 3. The lifting mechanism 30 has an electric motor 31 as a driving source. A wheel portion 33 is supported in front of the electric motor 31 via a reduction gear group 32. The wheel portion 33 is covered by a mechanism housing 35. The driver 2 and the piston 13 that have reached the lower moving end are returned to the upper standby position (in the opposite direction to the driving direction of the driven part t) by the lifting mechanism 30. The wheel portion 33 is supported by the output shaft 32a of the reduction gear group 32. The wheel portion 33 moves in a direction opposite to the driving direction of the driven part t. Figure 2 The driver 2 rotates in the direction (counterclockwise in the figure) shown by the arrow R. Accordingly, the driver 2 returns to the top (in the direction opposite to the driving direction).

[0031] For example, nine engaging portions 2a are provided on the right side of the driver 2. Each engaging portion 2a has a gear rack shape protruding to the right. The plurality of engaging portions 2a are arranged at regular intervals in the longitudinal direction (vertical direction) of the driver 2. The wheel portion 33 of the lifting mechanism 30 is sequentially engaged with the plurality of engaging portions 2a.

[0032] A wheel portion 33 is disposed on the right side of the driver 2. The wheel portion 33 has, for example, nine engaging portions 34, which are sequentially engaged with the engaging portion 2a of the driver 2. A cylindrical shaft member is used for each engaging portion 34. The nine engaging portions 34 are disposed at regular intervals along the outer periphery of the wheel portion 33. The engaging portion 34 that first engages with the engaging portion 2a of the driver 2 that reaches the lower moving end by the rotation of the wheel portion 33 in the direction of the arrow R is marked with the reference numeral 34F, and the engaging portion 34 that is last engaged is marked with the reference numeral 34E, so as to distinguish them as needed.

[0033] By starting the electric motor 31, the wheel portion 33 rotates in the direction of the arrow R. After the driver 2 reaches the lower moving end through the driving action, the wheel portion 33 rotates in the direction of the arrow R, so that the engaging portion 34 engages with the engaging portion 2a of the driver 2 from the lower side in sequence, thereby returning the driver 2 upward. The piston 13 is returned upward by the lifting mechanism 30, thereby increasing the air pressure in the pressure storage chamber 14. When the driver 2 returns Figure 2When the electric motor 31 reaches the standby position shown (a position where the last engagement portion 34E is engaged with the engagement portion 2a of the driver 2), the electric motor 31 stops to complete a series of driving operations.

[0034] When the switch operating handle 4 is pulled again, the lifting mechanism 30 is started again. Accordingly, the wheel portion 33 starts to rotate in the direction of arrow R, thereby the driver 2 and the piston 13 further rise upward from the standby position. Accordingly, the last engaging portion 34E is disengaged from the engaging portion 2a of the driver 2.

[0035] A large gap in the rotation direction is provided between the first engaging portion 34F and the last engaging portion 34E of the wheel portion 33 as shown by the arrow R in the figure (there is no escape area 33a of the engaging portion 34). When the wheel portion 33 rotates in the direction of the arrow R so that the escape area 33a faces the driver 2, the engagement state of all the engaging portions 2a of the wheel portion 33 with respect to the driver 2 is released. Accordingly, the piston 13 and the driver 2 are moved downward by the air pressure acting on the pressure accumulator chamber 14 of the piston 13. By moving the driver 2 downward in the driving passage 16c, the driving piece t is struck and driven into the driven material W.

[0036] The nail magazine 20 is connected to the rear guide 16b of the driver guide 16. The nail magazine 20 has an elongated nail magazine body 21 made of an aluminum drawn material. A plurality of drivers t temporarily fixed in a side-by-side state are loaded inside the nail magazine body 21 ( Figure 1 Reference). Figure 4 2 shows a state where the pusher 23 is located at the forward end of the magazine body 21 in an empty state where no driving piece t is present in the magazine body 21 .

[0037] The nail magazine body 21 extends from the rear surface of the driver guide 16 in a direction obliquely leftward and obliquely upward. Accordingly, the nail magazine body 21 extends to a length passing through the left side of the battery mounting portion 5. Figure 4 As shown, the nail magazine body 21 is joined to the vicinity of the lower part of the battery mounting portion 5 by the fixing screw 7. The fixing screw 7 is, for example, screwed into a nut embedded in the left split housing 11L. Accordingly, the nail magazine 20 is firmly supported on the machine head 15 and the battery mounting portion 5 across the machine head 15 and the battery mounting portion 5.

[0038] The loading port 21f is opened at the rear of the nail magazine body 21. A plurality of temporarily fixed flat-plate-shaped driving pieces t are loaded into the receiving portion 21a of the nail magazine body 21 through the loading port 21f. Figure 6As shown, the receiving portion 21a is a flat-plate-shaped space portion that can receive the driven member t along the upper and lower sides, and has a head receiving portion 21b at the upper portion for holding the head of the driven member t. The shaft receiving portion 21c extends downward from the head receiving portion 21b. The shaft of the driven member t is received in the shaft receiving portion 21c. The driven members t having different shaft lengths are received in the receiving portion 21a so that the positions of the heads are the same.

[0039] A pusher 23 is held on the left side of the receiving portion 21a. The pusher 23 has a pusher claw 24 and a retainer 25. The pusher claw 24 pushes the driven piece t toward the driving channel 16c, and the retainer 25 supports the pusher claw 24. Guide edges 25a and 25b are provided on the upper and lower sides of the retainer 25. A pair of upper and lower guide rails 26 and 27 are provided on the left side of the nail magazine body 21. The upper guide edge 25a is held by the upper guide rail 26, and the lower guide edge 25b is held by the lower guide rail 27. Accordingly, the retainer 25 is supported in a slidable manner along the length direction of the nail magazine body 21 (the feeding direction of the driven piece t and the direction opposite to the feeding direction).

[0040] The pusher claw 24 is supported by the holder 25 via a support shaft so as to be rotatable left and right. The pusher claw 24 is compressed by a spring in a direction in which the tip of the pusher claw 24 abuts against the bottom 21d of the housing 21a (in Figure 6 By making the pusher claw 24 retreat in the direction away from the bottom 21d, the multiple driven pieces t introduced from the loading port 21f pass through the right side of the pusher 23 and are loaded to the front side of the pusher 23. The rear ends of the loaded multiple driven pieces t are pushed by the pusher claw 24 returned to the storage portion 21a.

[0041] A leaf spring 22 for applying force to the pusher 23 toward the driving channel 16c is provided at the rear of the retaining frame 25. The leaf spring 22 is wound in a spiral shape. The base end of the coil of the leaf spring 22 is joined to the retaining frame 25. The top end 22a of the coil of the leaf spring 22 is hooked on the front end of the nail magazine body 21. The pusher 23 can be returned in a direction away from the driving channel 16c (the direction opposite to the feeding direction) by manual operation against the force of the leaf spring 22.

[0042] like Figures 4 to 6 As shown, a groove 21e recessed to the right is provided at the bottom 21d of the nail magazine body 21. The cross section of the groove 21e has a rectangular shape, and the groove 21e covers the entire length of the nail magazine body 21 in the length direction. The groove 21e has an upper wall 21g and a lower wall 21h facing each other up and down, and a bottom 21i spanning between the upper wall 21g and the lower wall 21h. The fixing screw 7 is fastened to the bottom 21i.

[0043] like Figure 3 ,5 As shown in Figures 6 and 7, two extensions 16d and 16e are provided on the rear guide 16b of the machine head 15. The two extensions 16d and 16e are respectively in the shape of a strip plate and extend toward the nail magazine 20. The extensions 16d and 16e extend along the feeding direction of the driving piece t. The upper extension 16d enters the groove 21e of the nail magazine body 21. The extension 16d abuts against the bottom 21i of the groove 21e. A threaded hole 16f is provided in the extension 16d. As shown in Figures 6 and 7, the rear guide 16b of the machine head 15 is provided with two extensions 16d and 16e. Figure 3 , 6 As shown, one engagement screw 28 inserted from the right side of the magazine body 21 is fastened to the threaded hole 16f. Thereby, the magazine body 21 is threadedly engaged with the rear guide 16b of the driver guide 16 at the upper side in the driving direction.

[0044] In the engaged state of the magazine body 21, the upper surface 16i of the extension 16d is in contact with the upper wall 16i of the groove 21e. Thus, the magazine 20 is assembled to the nose 15 with high accuracy, thereby stably supplying the driver t.

[0045] The extended portion 16d is brought into a state of being substantially in contact with the upper wall portion 21g and the lower wall portion 21h of the groove portion 21e. This suppresses the vertical vibration (up and down shaking, rattling) of the magazine body 21 relative to the extended portion 16d.

[0046] The lower extension portion 16e contacts the right side surface of the magazine body 21. This suppresses left-right vibration (left-right shaking, rattling) of the main lower portion of the magazine body 21.

[0047] like Figure 5 , Figure 7 As shown, a mounting portion 16g is provided below the upper extension portion 16d. The mounting portion 16g also extends toward the nail magazine 20 side. The upper and lower extension portions 16d, 16e and the mounting portion 16g extend parallel to each other. The mounting portion 16g is provided at a position lower than the upper extension portion 16d. The mounting portion 16g enters the guide rail 27 at the lower side of the nail magazine body 21.

[0048] An elastic member 29 is mounted on the mounting portion 16g. A U-shaped engaging wall portion 16h is provided on the left side of the mounting portion 16g. Figure 8 As shown, the elastic component 29 is integrally formed with elastic rubber as a raw material. The elastic component 29 has a snap-fitting portion 29a, an impact-bearing portion 29b and a connecting portion 29c, wherein the snap-fitting portion 29a is located at the front and is bent in a U shape; the impact-bearing portion 29b is located at the rear; and the connecting portion 29c connects the snap-fitting portion 29a and the impact-bearing portion 29b.

[0049] The front engagement portion 29a is engaged along the lower portion of the engagement wall portion 16h, and the elastic member 29 is supported by the mounting portion 16g. The impact receiving portion 29b abuts against the rear portion of the engagement wall portion 16h. The connecting portion 29c abuts against the lower surface of the engagement wall portion 16h.

[0050] The mounting portion 16g of the driver guide 16 enters the guide rail 27 on the lower side of the magazine body 21. Figure 6 As shown, the elastic member 29 is held in the lower guide rail 27. The lower guide rail 27 has a bottom surface 27a, a first surface 27b and a second surface 27c, wherein the bottom surface 27a faces the front surface of the guide edge 25b of the pusher 23 in the driving direction; the first surface 27b stands upright from the bottom surface 27a along the left side of the guide edge 25b; and the second surface 27c stands upright from the bottom surface 27a along the right side of the guide edge 25b. The elastic member 29 is arranged between the bottom surface 27a, the first surface 27b and the second surface 27c of the guide rail 27.

[0051] A protrusion 29d is provided on the lower surface of the connection portion 29c of the elastic member 29. The protrusion 29d protrudes slightly downward from the lower surface of the connection portion 29c and is provided integrally. The protrusion 29d is pressed against the bottom surface 27a of the guide rail 27. When the nail magazine 20 is assembled to the driver guide 16, the protrusion 29d is pressed against the bottom surface 27a of the guide rail 27. Accordingly, the protrusion 29d functions as a crush margin for absorbing vibration.

[0052] Furthermore, by interposing the elastic member 29 between the mounting portion 16 g and the guide rail 27 of the magazine body, the elastic member 29 functions as a vibration absorbing portion that absorbs vibration of the magazine 20 with respect to the nose portion 15 .

[0053] The impact receiving portion 29b has a receiving surface 29e in contact with the pusher 23. The retainer 25 of the pusher 23 is provided with an abutting surface 25c, and when the pusher 23 reaches the upper moving end, the abutting surface 25c abuts against the receiving surface 29e. The abutting surface 25c is provided in front of the lower guide edge 25b.

[0054] The receiving surface 29e of the elastic member 29 and the contact surface 25c of the pusher 23 are arranged parallel to each other. Therefore, the receiving surface 29e and the contact surface 25c are in surface contact. The receiving surface 29e and the contact surface 25c move together in a direction perpendicular to the moving direction of the pusher 23 (the feeding direction of the driven workpiece t). Figure 7Therefore, the impact force from the pusher 23 reaching the upper moving end received by the impact receiving portion 29b acts in a direction in which the main impact receiving portion 29b of the elastic member 29 is pressed against the bottom surface 27a of the guide rail 27. Thus, the positional displacement of the elastic member 29 is prevented, and the impact at the upper moving end of the pusher 23 is efficiently absorbed by the impact receiving portion 29b.

[0055] The impact receiving portion 29b is provided with two grooves 29f. The two grooves 29f are provided in parallel with the receiving surface 29e. The two grooves 29f can further improve the impact absorbing performance of the impact receiving portion 29b.

[0056] According to the embodiment described above, the extension portion 16d of the rear guide 16b provided on the driver guide 16 is screwed in a state of surface contact with the upper wall portion 21g of the magazine body 21, and the magazine 20 is firmly joined to the machine head 15. Accordingly, the magazine 20 is positioned at the machine head 15 with high precision, so that the driver t is stably supplied from the magazine 20 to the machine head 15.

[0057] According to the embodiment, the pusher 23 has the elastic member 29, and when the pusher 23 reaches the top end in the feeding direction of the driven object t, the pusher 23 abuts against the elastic member 29. Therefore, the impact when the pusher 23 reaches the top end is absorbed, thereby improving the durability of the driving tool 1.

[0058] According to the embodiment, the elastic member 29 is arranged on the lower guide rail 27 which guides the pusher 23 in the feeding direction of the driven workpiece t. Therefore, the elastic member 29 is compactly arranged by the guide rail 26 of the pusher 23 .

[0059] According to the embodiment, the lower guide rail 27 has a bottom surface 27a facing the front surface of the driving direction of the pusher 23. The guide rail 27 has a first surface 27b and a second surface 27c, wherein the first surface 27b stands upright from the bottom surface 27a along the left surface of the pusher 23; and the second surface 27c stands upright from the bottom surface 27a along the right surface of the pusher 23. An elastic member 29 is arranged between the bottom surface 27a, the first surface 27b, and the second surface 27c. Therefore, the elastic member 29 is accommodated in the U-shaped guide rail 27 and is compactly arranged.

[0060] According to the embodiment, the elastic member 29 is mounted in a pressed state on the bottom surface 27a of the guide rail 27 by the crushing margin (protrusion 29d). Therefore, the elastic member 29 is held in a non-vibrating state on the guide rail 27. Accordingly, the magazine 20 is joined to the nose 15 in a non-vibrating state.

[0061] According to the embodiment, the impact receiving portion 29b has a receiving surface 29e in contact with the pusher 23. The receiving surface 29e is inclined with respect to the moving direction of the pusher 23 in such a manner that the impact receiving portion 29b is pressed against the bottom surface 27a side of the guide rail 27 by the force received from the pusher 23. Therefore, the elastic member 29 is prevented from falling off from the guide rail 27.

[0062] According to the embodiment, the elastic member 29 has the receiving surface 29e of the impact receiving portion 29b that contacts the pusher 23 and the groove portion 29f parallel to the receiving surface 29e. Therefore, the impact absorbing performance of the receiving surface 29e is improved.

[0063] According to the embodiment, the elastic member 29 has a protruding portion 29d and an impact receiving portion 29b as an integral member, wherein the protruding portion 29d functions as a vibration absorbing portion (crush margin) for absorbing the vibration of the nail magazine 20 relative to the machine head 15, and the impact receiving portion 29b receives the impact of the pusher 23 when it reaches the forward end. Therefore, the elastic member 29 is compactly arranged.

[0064] According to the embodiment, the driving tool 1 includes a piston 13 and a driver 2, wherein the piston 13 is moved in the driving direction by compressed gas, and the driver 2 is engaged with the piston 13 to hit the driven workpiece t. Therefore, in the gas spring type driving tool 1 that uses the thrust of the compressed gas as the driving force, the elastic member 29 is compactly arranged between the head 15 and the nail magazine 20.

[0065] According to the embodiment, the driving tool 1 has a handle 3 for the user to hold, and the nail magazine 20 spans and is connected to the head 15 and the handle 3. Therefore, the nail magazine 20 is firmly supported in the gas spring type driving tool 1 in a non-shaky manner.

[0066] The above-described embodiments can be modified. For example, the upper extension 16d can be formed longer and fixed to the bottom 21i of the groove 21e by two engagement screws 28. Thus, the nail magazine body 21 is more firmly engaged with the machine head 15, and the vibration of the nail magazine body 21 can be further suppressed.

[0067] Although the nose section 15 in which the driver guide 16 is composed of two components, the front guide 16a and the rear guide 16b, is illustrated, the illustrated engagement structure of the magazine with a driver guide of an integral shape can also be applied.

[0068] The joining screws 28 are exemplified as the joining member for joining the magazine 20 to the nose section 15 , but a bonding mechanism such as a rivet, a clip, or soldering may be used as the joining member.

[0069] The elastic member 29 is exemplified as a structure in which the engaging portion 29a is hooked on the engaging wall portion 16h of the mounting portion 16g for mounting, but the elastic member may be configured to be mounted to the mounting portion by screwing, bonding, or the like.

[0070] Although the gas spring type driving tool 1 is exemplified, the magazine joint structure exemplified can also be applied to a mechanical spring type driving tool that uses the urging force of a compression spring as a thrust for driving.

[0071] The driving tool 1 of the embodiment is an example of a driving tool in one technical solution of the present invention. The tool body 10 of the embodiment is an example of a tool body in one technical solution of the present invention. The driving part t of the embodiment is an example of a driving part in one technical solution of the present invention. The ejection port 18 of the embodiment is an example of an ejection port in one technical solution of the present invention. The machine head 15 of the embodiment is an example of a machine head in one technical solution of the present invention. The nail magazine 20 of the embodiment is an example of a nail magazine in one technical solution of the present invention.

[0072] The joint screw 29 of the embodiment is an example of a joint member in one aspect of the present invention. The elastic member 29 of the embodiment is an example of an elastic member in one aspect of the present invention.

Claims

1. A driving tool, characterized in that: The tool has a tool body, a machine head, a nail magazine, a coupling component and an elastic component, wherein: The machine head is arranged on the tool body and has an ejection port for ejecting the driven part; The nail magazine accommodates the driven parts; The engaging member engages the nail magazine with the head of the machine; The elastic member is located between the nose section and the nail magazine at a position below the engaging member in the driving direction.

2. The driving tool according to claim 1, characterized in that The machine head has a protruding portion, and the protruding portion protrudes toward the nail magazine above the driving direction. The protruding portion has an upper surface that contacts the surface of the nail magazine, and the protruding portion is joined to the nail magazine by the joining member in a state in which the upper surface contacts the surface of the nail magazine.

3. The driving tool according to claim 2, characterized in that The number of the engaging member is one.

4. The driving tool according to any one of claims 1 to 3, characterized in that: The nail magazine has a pusher, which is used to push the received driven parts toward the head of the machine. The elastic member includes an impact receiving portion that comes into contact with the pusher when the pusher reaches a leading end in a feeding direction of the driving tool.

5. The driving tool according to claim 4, characterized in that The nail magazine has a guide rail, which is used to guide the pusher to the feeding direction of the driven part. The elastic member is arranged on the guide rail.

6. The driving tool according to claim 5, characterized in that The guide rail has a bottom surface, a first surface and a second surface, wherein: The bottom surface faces the front surface of the thruster in the driving direction. The first surface stands upright from the bottom surface along the left surface of the propeller, The second surface stands upright from the bottom surface along the right surface of the propeller, At least a portion of the elastic member is disposed in a region formed by the bottom surface, the first surface, and the second surface.

7. The driving tool according to claim 6, characterized in that The elastic member is attached to the bottom surface of the guide rail in a pressed state.

8. The driving tool according to claim 6 or 7, characterized in that The impact receiving portion has a receiving surface that contacts the pusher, and the receiving surface is inclined with respect to a moving direction of the pusher so as to be pressed against the bottom surface side of the guide rail by a force from the pusher received by the impact receiving portion.

9. The driving tool according to any one of claims 4 to 8, characterized in that: The elastic member includes a receiving surface of the impact receiving portion that contacts the pusher and a groove portion that is parallel to the receiving surface.

10. A driving tool, characterized in that: The tool has a tool body, a machine head, a nail magazine, a pusher, a joint and an elastic component, wherein: The machine head is arranged on the tool body and has an ejection port for ejecting the driven part; The nail magazine accommodates the driven parts; The pusher is used to push the driven piece contained in the nail magazine toward the machine head; The engaging portion engages the nail magazine with the head of the machine; The elastic component is arranged between the head and the nail magazine. The elastic component has a vibration absorbing portion and an impact bearing portion as an integral component, wherein the vibration absorbing portion absorbs vibration of the nail magazine relative to the machine head, and the impact bearing portion abuts against the pusher when the pusher reaches the top end of the feeding direction of the driven part.

11. The driving tool according to any one of claims 1 to 10, characterized in that: The tool body has a driver for striking the driven object and a piston engaged with the driver. The compressed gas generated by the movement of the piston in the direction opposite to the driving direction causes the piston to move in the driving direction.

12. The driving tool according to any one of claims 1 to 11, characterized in that: The nail magazine spans across and is connected to the head and the tool body.

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