Driving tool

Abstract

To allow a magazine to be coupled to a nose part of a driving tool without causing rattling and ease an impact at an upward movement end position of a pusher.SOLUTION: At the upper side in a driving direction, an extending part 16d which is provided extending at a rear guide 16b of a nose part 15 is coupled to a magazine body 21 by a coupling screw 28. An the side below the coupling screw 28 in the driving direction, an elastic member 29 is provided between the rear guide 16b and the magazine body 21. The elastic member 29 absorbs rattling of the magazine body 21. In the elastic member 29, an impact receiving part 29b which eases an impact at an upward movement end position of a pusher is integrally provided.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a driving tool for driving a driving tool into a workpiece. [Background technology]

[0002] Patent Documents 1 and 2 disclose a driving tool. The driving tool has a nose portion having an ejection port for driving tools at the front in the driving direction. A magazine capable of storing a large number of driving tools is connected to the nose portion. The driving tools stored in the magazine are pushed in the feed direction by, for example, a pusher and supplied one by one to a driving passage in the nose portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3558884 [Patent Document 2] Patent No. 6766727 Summary of the Invention [Problem to be solved by the invention]

[0004] The top of the magazine (the leading end in the feed direction) is attached to the nose portion by screwing with an elastic member interposed therebetween to absorb rattle. In addition to absorbing rattle during assembly, an elastic member is interposed in the top of the magazine or the pusher to absorb impacts at the raised end position of the pusher. This disclosure aims to reduce the number of parts and lower costs by compactly arranging an elastic member that has a function of absorbing rattle between the two and a function of absorbing impacts of the pusher at the joint between the nose portion and the magazine. [Means for solving the problem]

[0005] According to one aspect of the present disclosure, a driving tool includes, for example, a tool body, a nose portion provided in the tool body and including an ejection port through which a driving tool is ejected, and a magazine that houses the driving tools. The driving tool includes, for example, a coupling member that couples the magazine to the nose portion. The driving tool includes, for example, an elastic member between the nose portion and the magazine, below the coupling member in the driving direction.

[0006] Therefore, the connecting member and the elastic member are arranged in a compact manner, which reduces the number of parts and reduces costs.

[0007] According to another aspect of the present disclosure, the driving tool includes, for example, a tool body, a nose portion provided on the tool body and including an ejection port through which the driving tools are ejected, and a magazine that houses the driving tools. The driving tool includes, for example, a pusher that pushes the driving tools housed in the magazine toward the nose portion. The driving tool includes, for example, a connecting portion that connects the magazine to the nose portion, and an elastic member provided between the nose portion and the magazine. For example, the elastic member includes, as a single member, a backlash absorbing portion that absorbs backlash of the magazine relative to the nose portion, and an impact receiving portion against which the pusher abuts when the pusher reaches the tip of the driving tool in the feed direction.

[0008] Therefore, at the joining portion of the magazine to the nose portion, the elastic member having the function of absorbing rattle between the two and the function of absorbing shock to the pusher is compactly arranged, thereby reducing the number of parts and the cost. [Brief description of the drawings]

[0009] [Figure 1] FIG. [Diagram 2] Fig. 2 is a vertical cross-sectional view of the tool body taken along line II-II in Fig. 1. This drawing shows a state in which the driver is located at the standby position. [Diagram 3] 1 is a right side view of the driving tool, with the right half housing removed to expose the interior. [Figure 4]FIG. [Diagram 5] FIG. 13 is a left side view of the coupling portion of the magazine to the nose portion. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 4, and is a transverse cross-sectional view of the magazine. [Figure 7] FIG. 13 is a left side view showing a state in which the pusher is positioned at the forward end relative to the nose portion. [Figure 8] FIG. 4 is an exploded perspective view of the elastic member and the mounting portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In one or more embodiments, for example, the nose portion has an overhanging portion that overhangs toward the magazine upward in the driving direction. For example, the overhanging portion has an upper surface that comes into face-to-face contact with the magazine. For example, the overhanging portion is connected to the magazine by a connecting member in a face-to-face state with the upper surface. Therefore, when the magazine is assembled, the upper surface of the overhanging portion is connected to the magazine in a face-to-face state due to the reaction force of the elastic member, and the magazine is accurately positioned with respect to the nose portion. This allows for a stable supply of driving tools from the magazine to the nose portion.

[0011] In one or more embodiments, for example, there is only one connecting member, which simplifies the assembly process and reduces the weight of the driving tool.

[0012] In one or more embodiments, for example, the magazine has a pusher that pushes the stored driving tools toward the nose portion. For example, the elastic member has an impact receiving portion that the pusher abuts against when it reaches the leading end of the driving tool in the feed direction. This absorbs the impact when the pusher reaches the leading end, thereby improving the durability of the driving tool.

[0013] In one or more embodiments, for example, the magazine has a guide rail that guides the pusher in the feeding direction of the driving tool. For example, the elastic member is disposed on the guide rail. Thus, the elastic member is disposed compactly.

[0014] In one or more embodiments, for example, the guide rail has a bottom surface facing the front surface of the pusher in the driving direction. For example, the guide rail has a first surface rising from the bottom surface along the left surface of the pusher, and a second surface rising from the bottom surface along the right surface of the pusher. For example, at least a portion of the elastic member is disposed within an area formed by the bottom surface, the first surface, and the second surface. Thus, at least a portion of the elastic member is disposed compactly in the U-shaped guide rail.

[0015] In one or more embodiments, for example, the elastic member is attached in a pressing manner to the bottom surface of the guide rail, so that the elastic member is held in the guide rail without rattle.

[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 with respect to the moving direction of the pusher so that the impact receiving portion is pressed against the bottom surface side of the guide rail by the force received from the pusher. Therefore, the elastic member is prevented from coming off 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 pusher and a groove parallel to the receiving surface, thereby enhancing the impact absorption ability of the receiving surface.

[0018] In one or more embodiments, for example, the tool body includes a driver that strikes the driving tool and a piston coupled to the driver. For example, the piston moves in the driving direction by compressed gas generated by the movement of the piston in the opposite direction to the driving direction. Therefore, in a gas spring type driving tool that utilizes the thrust of the compressed gas as a driving force, an elastic member is compactly arranged between the nose portion and the magazine.

[0019] In one or more embodiments, for example, the magazine is coupled across the nose and tool body, thus providing a more robust and wobble-free magazine support for the gas spring type driving tool. EXAMPLES

[0020] In the embodiment of the present disclosure, as an example of the driving tool 1, a gas spring type driving tool that utilizes the gas pressure in the pressure accumulator above the cylinder as a thrust for driving the driving tool t is exemplified. For example, a rod-shaped nail is applied to the driving tool t. In the following description, the driving direction of the driving tool t is the downward direction, and the opposite driving direction is the upward direction. The user of the driving tool 1 is located on the right side (grip 3 side) of the driving tool 1 in FIG. 1. The side in front of the user is the rear direction (user side), and the opposite side to the front side is the forward direction. The left and right directions are based on the user holding the grip 3.

[0021] As shown in Figs. 1 to 3, the driving tool 1 has a tool body 10. The tool body 10 has a body housing 11 made of resin. The body housing 11 has a left and right half-split structure in which left and right half-split housings 11L, 11R are faced to each other and screwed together. A cylinder 12 is accommodated in the body housing 11. A piston 13 is accommodated in the cylinder 12 so that it can reciprocate up and down. A long driver 2 is coupled to the center of the lower surface of the piston 13. The lower side of the driver 2 enters a driving passage 16c described later. An upper part of the cylinder 12 above the piston 13 is connected to a pressure accumulator 14. A compressed gas such as air is sealed in the pressure accumulator 14. The gas pressure in the pressure accumulator 14 acts as a thrust force on the upper surface of the piston 13 to move it downward.

[0022] A nose portion 15 is provided at the bottom of the tool body 10. The nose portion 15 includes a driver guide 16 and a contact arm 17. The driver guide 16 has a front guide 16a on the front side and a rear guide 16b on the rear side. The front guide 16a and the rear guide 16b are connected to each other to form the driver guide 16. A driving passage 16c is formed between the front guide 16a and the rear guide 16b. The driving passage 16c is connected to the inner peripheral side of the cylinder 12. The driver 2 is inserted into the driving passage 16c so as to be able to reciprocate up and down.

[0023] A contact arm 17 is supported around the driver guide 16 so as to be vertically displaceable. The contact arm 17 extends upward from around the lower end (injection port 18) of the driver guide 16. As shown in Fig. 3, the contact arm 17 is biased downward toward the OFF position by a compression spring 17b. In the OFF position, the lower end of the contact arm 17 is located below the injection port 18.

[0024] The switch lever 4 can be pulled by pressing the contact arm 17 against the material W to be driven and moving it relatively upward (ON operation). A dial 17a for adjusting the driving depth is provided below the compression spring 17b. The OFF position of the contact arm 17 can be displaced up or down by rotating the dial 17a. This changes the stroke of the contact arm 17, and changes the position of the injection port 18 relative to the material W to be driven during the ON operation. This changes the driving depth of the driving tool t into the material W to be driven.

[0025] As shown in Figure 1, a magazine 20 is connected to the rear side of the nose portion 15. A large number of driving tools t are loaded into the magazine 20. The magazine 20 has a magazine body 21 that stores the large number of driving tools t, and a pusher 23 that pushes the stored driving tools t toward the driving passage 16c of the nose portion 15. One driving tool t is pushed by the pusher 23 and supplied from inside the magazine body 21 into the driving passage 16c, and is struck by the driver 2 moving downward to be ejected from the ejection port 18.

[0026] A grip 3 to be held by a user is provided on the rear side of the tool body 10. The grip 3 has a split-half structure in which left and right grip housings 3L, 3R, which are integral with the body housing 11, face each other and are screwed together. A start-up switch lever 4 that is pulled by the user's fingertips is provided on the underside of the front part of the grip 3. As shown in FIG. 3, a switch body 4a is mounted above the switch lever 4. When the switch lever 4 is pulled upward, the switch body 4a is turned on. When the switch body 4a is turned on, power is supplied to a lift mechanism 30, which will be described later.

[0027] As shown in FIG. 3, a battery attachment section 5 is provided at the rear of the grip 3. One battery 6 is attached to the battery attachment section 5. The battery 6 is attached to the battery attachment section 5 by sliding it downward. The attached battery 6 is removed from the battery attachment section 5 by sliding it upward. The battery 6 can be used repeatedly by removing it from the battery attachment section 5 and charging it with a separately prepared charger. The battery 6 is versatile enough to be used as a power source for other power tools. The electric motor 31 of the lift mechanism 30 operates using the power of the battery 6 as a power source.

[0028] A rectangular, flat controller 8 is installed inside the battery attachment section 5. The controller 8 is disposed in a state of extending vertically along the front side of the attached battery 6. By turning on the switch lever 4 and the contact arm 17, the lift mechanism 30 is actuated and the driving operation is started. The operation of the electric motor 31 of the lift mechanism 30 is mainly controlled by the controller 8.

[0029] As shown in FIG. 2, a lower moving end damper 19 for absorbing impact at the lower moving end of the piston 13 is disposed at the bottom of the cylinder 12. The lower side of the driver 2 passes through the inner periphery of the lower moving end damper 19 and enters the driving passage 16c. The driver 2 moves downward within the driving passage 16c due to the gas pressure of the pressure accumulator chamber 14 acting on the upper surface of the piston 13. The tip (lower end) of the driver 2 moving downward within the driving passage 16c strikes one driving tool t supplied into the driving passage 16c. When the piston 13 reaches the lower moving end, the struck driving tool t is ejected from the ejection port 18. The ejected driving tool t is driven into the material W to be driven.

[0030] A lift mechanism 30 is provided below the grip 3. The lift mechanism 30 has an electric motor 31 as a drive source. A wheel 33 is supported in front of the electric motor 31 via a reduction gear train 32. The periphery of the wheel 33 is covered by a mechanism case 35. The driver 2 and piston 13 that have reached the lower end of their movement are returned to an upper standby position (opposite the driving direction of the driving tool t) by the lift mechanism 30. The wheel 33 is supported by an output shaft 32a of the reduction gear train 32. The wheel 33 rotates in the direction indicated by the arrow R in FIG. 2 (counterclockwise in the figure). This returns the driver 2 upward (opposite 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 rack tooth shape protruding to the right. The multiple engaging portions 2a are arranged at regular intervals in the longitudinal direction (up-down direction) of the driver 2. Wheels 33 of the lift mechanism 30 are sequentially engaged with the multiple engaging portions 2a.

[0032] A wheel 33 is disposed on the right side of the driver 2. The wheel 33 has, for example, nine engagement portions 34 which are sequentially engaged with the engagement portion 2a of the driver 2. A cylindrical shaft member is used for each engagement portion 34. The nine engagement portions 34 are disposed at regular intervals along the outer periphery of the wheel 33. The engagement portion 34 which is first engaged with the engagement portion 2a of the driver 2 which has reached the lower end due to the rotation of the wheel 33 in the direction of arrow R is given the reference symbol 34F, and the engagement portion 34 which is last engaged is given the reference symbol 34E, and they are distinguished from one another as necessary.

[0033] Activation of the electric motor 31 rotates the wheel 33 in the direction of the arrow R. After the driver 2 reaches the lower end of its travel due to the driving operation, the engagement parts 34 are successively engaged with the engagement part 2a of the driver 2 from below due to the rotation of the wheel 33 in the direction of the arrow R, so that the driver 2 is returned upward. The lift mechanism 30 returns the piston 13 upward, so that the gas pressure in the pressure accumulator chamber 14 is increased. When the driver 2 is returned to the standby position shown in FIG. 2 (the position where the last engagement part 34E engages with the engagement part 2a of the driver 2), the electric motor 31 stops and the series of driving operations ends.

[0034] When the switch lever 4 is pulled again, the lift mechanism 30 is restarted. As a result, the wheel 33 starts to rotate in the direction of the arrow R, and the driver 2 and the piston 13 are lifted further upward from the standby position. As a result, the last engagement part 34E is disengaged from the engagement part 2a of the driver 2.

[0035] A large gap (a relief area 33a where no engagement parts 34 exist) is provided between the first engagement part 34F and the last engagement part 34E in the rotation direction of the wheel 33 indicated by the arrow R in the figure. When the relief area 33a is directed toward the driver 2 by the rotation of the wheel 33 in the direction of the arrow R, the engagement state of the wheel 33 with all the engagement parts 2a of the driver 2 is released. This causes the piston 13 and the driver 2 to move downward due to the gas pressure in the pressure accumulator chamber 14 acting on the piston 13. As the driver 2 moves downward in the driving passage 16c, the driving tool t is struck and driven into the workpiece W to be driven.

[0036] The magazine 20 is connected to the rear guide 16b of the driver guide 16. The magazine 20 has a long magazine body 21 made of extruded aluminum. A large number of driving tools t are loaded inside the magazine body 21 and temporarily fixed in parallel (see FIG. 1). FIG. 4 shows the magazine body 21 in an empty state with no driving tools t present, and the pusher 23 positioned at the forward end of the magazine body 21.

[0037] The magazine body 21 extends in a direction inclined diagonally leftward and upward from the rear surface of the driver guide 16. As a result, the magazine body 21 extends long enough to pass the left side of the battery mounting part 5. As shown in FIG. 4, the magazine body 21 is connected to the vicinity of the lower part of the battery mounting part 5 by a fixing screw 7. The fixing screw 7 is fastened to a nut embedded in, for example, the left half-split housing 11L. As a result, the magazine 20 is firmly supported across the nose part 15 and the battery mounting part 5.

[0038] A loading opening 21f is opened at the rear of the magazine body 21. A large number of driving tools t temporarily fixed in a flat plate shape are loaded into the storage section 21a of the magazine body 21 through the loading opening 21f. As shown in FIG. 6, the storage section 21a is a flat space that can store the driving tools t aligned vertically, and has a head storage section 21b at the top that holds the heads of the driving tools t. A shaft storage section 21c extends downward from the head storage section 21b. The shafts of the driving tools t are stored in the shaft storage section 21c. Driving tools t with shaft lengths of different lengths are stored in the storage section 21a with their heads positioned in a common position.

[0039] A pusher 23 is held on the left side of the storage section 21a. The pusher 23 has a pusher claw 24 that pushes the driving tool t toward the driving passage 16c, and a holder 25 that supports the pusher claw 24. Guide edges 25a, 25b are provided on the top and bottom of the holder 25. A pair of upper and lower guide rails 26, 27 are provided on the left side of the 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. This allows the holder 25 to be supported slidably along the longitudinal direction of the magazine body 21 (the feed direction and counter-feed direction of the driving tool t).

[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 biased by a compression spring in a direction (rightward in FIG. 6) that causes the tip of the pusher claw 24 to abut against the bottom 21d of the storage section 21a. By retracting the pusher claw 24 in a direction away from the bottom 21d, the multiple driving tools t inserted from the loading opening 21f pass the right side of the pusher 23 and are loaded into the front side of the pusher 23. The rear ends of the multiple driving tools t that have been loaded are pushed by the pusher claw 24 that has been returned into the storage section 21a.

[0041] A leaf spring 22 is provided at the rear of the holder 25 to bias the pusher 23 toward the driving passage 16c. The leaf spring 22 is wound in a coil shape. A base end of the leaf spring 22 is connected to the holder 25. A tip end 22a of the leaf spring 22 is hooked onto the front end of the magazine body 21. The pusher 23 can be manually returned in a direction away from the driving passage 16c (counter-feed direction) against the biasing force of the leaf spring 22.

[0042] 4 to 6, a groove 21e recessed to the right is provided in the bottom 21d of the magazine body 21. The groove 21e has a rectangular cross section and is provided over the entire length of the magazine body 21 in the longitudinal direction. The groove 21e has an upper wall 21g and a lower wall 21h that face each other vertically, and a bottom 21i that spans between the upper wall 21g and the lower wall 21h. The fixing screw 7 is fastened to the bottom 21i.

[0043] As shown in Figs. 3, 5, and 6, the rear guide 16b of the nose portion 15 is provided with two overhangs 16d and 16e. The two overhangs 16d and 16e each have a strip shape and overhang the magazine 20 side. The overhangs 16d and 16e overhang along the feed direction of the driving tool t. The upper overhang 16d enters the groove 21e of the magazine body 21. The overhang 16d abuts against the bottom 21i of the groove 21e. The overhang 16d is provided with one screw hole 16f. As shown in Figs. 3 and 6, one coupling screw 28 inserted from the right side of the magazine body 21 is tightened into the screw hole 16f. As a result, the magazine body 21 is screwed to the rear guide 16b of the driver guide 16 at the upper side in the driving direction.

[0044] When the magazine body 21 is in a connected state, the upper surface 16i of the protruding portion 16d is in face-to-face contact with the upper wall portion 16i of the groove portion 21e, thereby assembling the magazine 20 to the nose portion 15 with high precision, and the driving tools t are supplied stably.

[0045] The protruding portion 16d is inserted into the groove 21e so as to be in substantial contact with the upper wall portion 21g and the lower wall portion 21h, thereby preventing the magazine body 21 from rattling up and down relative to the protruding portion 16d.

[0046] The lower protruding portion 16e is in contact with the right side surface of the magazine body 21. This prevents the magazine body 21 from wobbling in the left-right direction, mainly on the lower side.

[0047] As shown in Figures 5 and 7, one mounting portion 16g is provided below the upper protruding portion 16d. The mounting portion 16g also protrudes toward the magazine 20. The upper and lower protruding portions 16d, 16e and the mounting portion 16g protrude parallel to each other. The mounting portion 16g is provided below the upper protruding portion 16d. The mounting portion 16g enters inside the guide rail 27 on the lower side of the magazine body 21.

[0048] One elastic member 29 is attached to the mounting portion 16g. An engagement wall portion 16h bent into a U-shape is provided on the left side surface of the mounting portion 16g. As shown in Fig. 8, the elastic member 29 is integrally molded from elastic rubber. The elastic member 29 has an engagement portion 29a bent into a U-shape at the front, an impact receiving portion 29b at the rear, and a connecting portion 29c that connects the engagement portion 29a and the impact receiving portion 29b.

[0049] The front engaging portion 29a engages along the lower portion of the engaging 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 engaging wall portion 16h. The connecting portion 29c abuts along the lower surface of the engaging wall portion 16h.

[0050] The mounting portion 16g of the driver guide 16 is inserted into the lower guide rail 27 of the magazine body 21. Therefore, as shown in FIG. 6, an elastic member 29 is held in the lower guide rail 27. The lower guide rail 27 has a bottom surface 27a that faces the front surface of the guide edge portion 25b of the pusher 23 in the driving direction, a first surface 27b that rises from the bottom surface 27a along the left side surface of the guide edge portion 25b, and a second surface 27c that rises from the bottom surface 27a along the right side surface of the guide edge portion 25b. The elastic member 29 is disposed 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 connecting portion 29c of the elastic member 29. The protrusion 29d is provided integrally with the lower surface of the connecting portion 29c and protrudes slightly downward. The protrusion 29d is pressed against the bottom surface 27a of the guide rail 27. The protrusion 29d is pressed against the bottom surface 27a of the guide rail 27 when the magazine 20 is assembled to the driver guide 16. This allows the protrusion 29d to function as a crushing allowance for absorbing backlash.

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

[0053] The impact receiving portion 29b has a receiving surface 29e that comes into contact with the pusher 23. The holder 25 of the pusher 23 is provided with an abutment surface 25c that comes into contact with the receiving surface 29e when the pusher 23 reaches the upper end of its movement. The abutment surface 25c is provided in the front part of the lower guide edge portion 25b.

[0054] The receiving surface 29e of the elastic member 29 and the contact surface 25c of the pusher 23 are provided parallel to each other. Therefore, the receiving surface 29e and the contact surface 25c come into surface contact with each other. The receiving surface 29e and the contact surface 25c are both inclined in the counterclockwise direction in FIG. 7 with respect to the direction perpendicular to the moving direction of the pusher 23 (the feed direction of the driving tool t). Therefore, the impact force that the impact receiving portion 29b receives from the pusher 23 that has reached the upper moving end acts mainly in a direction that presses the impact receiving portion 29b of the elastic member 29 against the bottom surface 27a of the guide rail 27. This prevents the elastic member 29 from being displaced, 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 to the receiving surface 29e. The two grooves 29f further enhance the impact absorbing ability of the impact receiving portion 29b.

[0056] According to the embodiment described above, the overhanging portion 16d provided on the rear guide 16b of the driver guide 16 above in the driving direction is screwed to the upper wall portion 21g of the magazine body 21 in a face-to-face contact state, and the magazine 20 is firmly connected to the nose portion 15. This allows the magazine 20 to be accurately positioned relative to the nose portion 15, and allows for a stable supply of driving tools t from the magazine 20 to the nose portion 15.

[0057] According to the embodiment, the pusher 23 has an elastic member 29 against which the pusher 23 abuts when the pusher 23 reaches the tip end of the driving tool 1 in the feed direction. Therefore, the impact when the pusher 23 reaches the tip end is absorbed, and the durability of the driving tool 1 is improved.

[0058] According to this embodiment, the elastic member 29 is disposed on the lower guide rail 27 that guides the pusher 23 in the feed direction of the driving tool t. Therefore, the elastic member 29 is disposed compactly by utilizing the guide rail 26 of the pusher 23.

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

[0060] According to the embodiment, the elastic member 29 is attached in a state in which the crushed margin (projection 29d) is pressed against the bottom surface 27a of the guide rail 27. Therefore, the elastic member 29 is held without rattle on the guide rail 27. As a result, the magazine 20 is connected to the nose portion 15 without rattle.

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

[0062] According to the embodiment, the elastic member 29 has a receiving surface 29e of the impact receiving portion 29b that comes into contact with the pusher 23, and a groove 29f parallel to the receiving surface 29e. Therefore, the impact absorbing ability of the receiving surface 29e is improved.

[0063] According to the embodiment, the elastic member 29 has, as a single member, a protrusion 29d as a backlash absorbing portion (a crushing margin) that absorbs backlash against the nose portion 15 of the magazine 20, and an impact receiving portion 29b that receives an impact when the pusher 23 reaches the forward end. Therefore, the elastic member 29 is arranged compactly.

[0064] According to the embodiment, the driving tool 1 includes a piston 13 that is moved in the driving direction by compressed gas, and a driver 2 that is coupled to the piston 13 and strikes the driving tool t. Therefore, in the gas spring type driving tool 1 that utilizes the thrust of the compressed gas as the driving force, an elastic member 29 is compactly arranged between the nose portion 15 and the magazine 20.

[0065] According to the embodiment, the driving tool 1 has a grip 3 that is held by a user, and the magazine 20 is connected across the nose portion 15 and the grip 3. Therefore, the magazine 20 is firmly supported without rattling in the gas spring type driving tool 1.

[0066] The above-described embodiment may be modified. For example, the upper protruding portion 16d may be made longer and fixed to the bottom portion 21i of the groove portion 21e with two connecting screws 28. This allows the magazine body 21 to be connected to the nose portion 15 more firmly and makes it possible to further suppress rattling of the magazine body 21.

[0067] Although the driver guide 16 has been illustrated as having a nose portion 15 composed of two members, the front guide 16a and the rear guide 16b, the illustrated magazine connection structure can be applied to an integrated driver guide.

[0068] Although the connecting screw 28 is shown as an example of the connecting member for connecting the magazine 20 to the nose portion 15, the connecting member may be a rivet, a clip, or an adhesive means such as brazing.

[0069] Although the elastic member 29 is attached by hooking the engagement portion 29a onto the engagement wall portion 16h of the attachment portion 16g in the above embodiment, the elastic member may be attached to the attachment portion by means of screws, adhesives, or the like.

[0070] Although a gas spring type driving tool 1 has been exemplified, the magazine connection structure exemplified can be applied to a mechanical spring type driving tool that utilizes the biasing force of a compression spring as a driving thrust.

[0071] The driving tool 1 of the embodiment is an example of a driving tool in one aspect of the present disclosure. The tool body 10 of the embodiment is an example of a tool body in one aspect of the present disclosure. The driving tool t of the embodiment is an example of a driving tool in one aspect of the present disclosure. The ejection port 18 of the embodiment is an example of an ejection port in one aspect of the present disclosure. The nose portion 15 of the embodiment is an example of a nose portion in one aspect of the present disclosure. The magazine 20 of the embodiment is an example of a magazine in one aspect of the present disclosure.

[0072] The coupling screw 29 in the embodiment is an example of a coupling member in one aspect of the present disclosure. The elastic member 29 in the embodiment is an example of an elastic member in one aspect of the present disclosure. [Explanation of symbols]

[0073] W…Material to be driven t…Driving tool 1...Driving tool 2. Driver 2a…Engagement part 3. Grip 4…Switch lever 4a…Switch body 5…Battery mounting section 6…Battery 7…Fixing screw 8…Controller 10...Tool body 11...Main body housing 11L: Left half housing, 11R: Right half housing 12...Cylinder 13…Piston 14...Pressure chamber 15…Nose section 16. Driver's Guide 16a...front guide, 16b...rear guide, 16c...drive passage 16d... Projection (upper side), 16e... Projection (lower side), 16f... Screw hole, 16g... Mounting part 16h...Engagement wall part, 16i...Top surface 17…Contact arm 17a...dial, 17b...compression spring 18...Ejection port 19...Lower end damper 20…Magazine 21…Magazine body 21a...accommodating portion, 21b...head portion, 21c...shaft portion, 21d...bottom portion, 21e...groove portion 21f...loading port, 21g...top wall, 21h...bottom wall, 21i...bottom 22…Leaf spring 22a…Tip of the roll 23... Pusha 24…Pusher jaw 25…Holder 25a...guide edge portion (upper side), 25b...guide edge portion (lower side), 25c...contact surface 26...Guide rail (upper side) 27...Guide rail (lower side) 27a...bottom surface, 27b...first surface, 27c...second surface 28…Connecting screw 29...Elastic member 29a: engagement portion, 29b: impact receiving portion, 29c: connecting portion, 29d: protrusion 29e...receiving surface, 29f...groove 30...Lift mechanism 31...Electric motor 32…Reduction gear train 32a…Output shaft 33…Wheels 33a…Relief area 34...Engagement part 34F: first engagement part, 34E: last engagement part 35…Mechanism case

Claims

1. A driving tool, A tool body, a nose portion provided on the tool body and having an ejection port through which a driving tool is ejected; A magazine for accommodating driving tools; a coupling member coupling the magazine to the nose portion; A driving tool having an elastic member between the nose portion and the magazine, below the connecting member in the driving direction.

2. The driving tool according to claim 1, The nose portion has a protruding portion protruding toward the magazine upward in the driving direction, The protrusion has an upper surface that comes into face-to-face contact with the magazine, and the protrusion is connected to the magazine by the connecting member with the upper surface in face-to-face contact state.

3. The driving tool according to claim 2, A driving tool having one connecting member.

4. A driving tool according to any one of claims 1 to 3, The magazine has a pusher that pushes the driving tool stored therein toward the nose portion, The elastic member has an impact receiving portion with which the pusher comes into contact when the pusher reaches the tip of the driving tool in the feed direction.

5. The driving tool according to claim 4, The magazine has a guide rail that guides the pusher in a feeding direction of the driving tool, A driving tool in which the elastic member is disposed on the guide rail.

6. The driving tool according to claim 5, The guide rail has a bottom surface facing the front surface of the pusher in the driving direction, a first surface rising from the bottom surface along the left surface of the pusher, and a second surface rising from the bottom surface along the right surface of the pusher, and at least a portion of the elastic member is disposed within the area formed by the bottom surface, the first surface, and the second surface.

7. The driving tool according to claim 6, 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, The impact receiving portion has a receiving surface that comes into contact with the pusher, and the receiving surface is inclined with respect to the movement direction of the pusher so that the impact receiving portion is pressed toward the bottom surface of the guide rail by the force received from the pusher.

9. A driving tool according to any one of claims 4 to 8, The elastic member is a driving tool having a receiving surface of the impact receiving portion that comes into contact with the pusher and a groove portion parallel to the receiving surface.

10. A driving tool, A tool body, a nose portion provided on the tool body and having an ejection port through which a driving tool is ejected; A magazine for accommodating driving tools; a pusher that pushes the driving tools stored in the magazine toward the nose portion; a coupling portion for coupling the magazine to the nose portion; an elastic member provided between the nose portion and the magazine, The elastic member is a driving tool having, as a single member, a play absorbing portion that absorbs play relative to the nose portion of the magazine, and an impact receiving portion against which the pusher abuts when the pusher reaches the tip of the driving tool in the feed direction.

11. A driving tool according to any one of claims 1 to 10, The tool body is equipped with a driver that strikes the driving tool and a piston to which the driver is connected, and the piston moves in the driving direction by compressed gas generated by the movement of the piston in the opposite direction to the driving direction.

12. A driving tool according to any one of claims 1 to 11, A driving tool in which the magazine is coupled across the nose portion and the tool body.

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