Driving tools

Abstract

A driving tool (10) comprises a plate-shaped driver (2) having rack teeth (engaged areas (2a)). A lifting device (6) engages with the rack teeth. The lifting device (6) enables the driver (2) to move. An impact element (3) is connected to a tip (2c) of the driver (2). The impact element (3) strikes a driving component (8). An area of ​​an impact surface (3a) of the impact element (3) is larger than an area of ​​the tip (2c) of the driver (2).

Description

The present disclosure relates to a driving tool (also referred to as a nailer or stapler) for driving driving components, such as nails and staples, into wood or other materials.JP 6 627 990 B discloses a gas spring type driving tool using a thrust of a compressed gas as an impact force. The driving tool has a rectangular plate-shaped driver elongated in a driving direction. The driver moves in the driving direction by a gas pressure for striking the driving member. The driver which has moved in the driving direction is returned in a counter-driving direction by a lifting device located on one side of the driver. The jack engages with rack teeth formed on the driver side and returns the driver to an initial position.The driver strikes a circular flange-like head of the driving-in member with its rectangular end face (end face). Therefore, the impact force of the driver is concentrated in a portion of the head of the driving member. Accordingly, there is a concern here that the driver cannot correctly apply a force to the driving member. Further, when a nail jams, the head of the driving member may stick in a gap between the driver and a driver guide. In such a case, there is a concern that the end of the driver may be damaged. To eliminate these concerns, there has been conventionally a need for a driver that can apply an impact force over a wide surface area corresponding to the circular shape of the head of the driving member. However, there is a concern here that a round rod-shaped driver could be heavier than a rectangular plate-shaped driver. Furthermore, it might become more difficult to form rack teeth on the round rod driver.Therefore, there is a conventional need here for a driving tool that can hit driving members in a wide (wide) range with a simple structure.The above object is achieved by a driving tool according to claim 1.According to an aspect of the present disclosure, a driving tool includes a plate-shaped driver including rack teeth. A lift engages the rack teeth to move the driver. A striking element is connected to an end of the driver and is configured to strike driving components. An area of a striking surface of the striking element is larger than an area of the end of the driver. Therefore, the striking element having an area larger than the end of the driver strikes the driving member. As compared with a structure in which the end of the driver hits the driving member, it is easier to hit the driving member in a wider (wider) range. It is possible to reduce weight gain with a simple structure to connect the impact member to the end of the driver.Additional objects, features and advantages of the present teachings will be more readily understood upon reading the following detailed description, along with the claims and the following accompanying drawings. FIG. 1 is a left side view of a driving tool with a left housing removed. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1. FIG. 3 is an enlarged cross-sectional view of a nose. FIG. 4 is a cross-sectional view taken along a line IV-IV in FIG. 3. FIG. 5 is an exploded perspective view of the nose and driver. FIG. 6 is a view corresponding to FIG. 3 in a state where the driver has been moved to a charge position.According to another aspect of the present disclosure, the impact member is removably connected to the driver. This makes it possible to easily replace the striking element.According to another aspect of the present disclosure, the driving member includes a head that is at least partially circular arc-shaped (circular). The striking element has a circular arc region. The striking element can thus easily perform a striking suitable for the head of the driving member.According to another aspect of the present disclosure, the driving tool includes a magazine configured to receive driving members. The impact surface of the impact member has a cut edge formed by cutting a portion of a circle. The impact element is positioned such that the cut edge is oriented toward the magazine. Normally, the magazine receives a plurality of driving members connected in a row. Therefore, the impact member, with the cut edge oriented toward the magazine, is less likely to interfere with a driving member disposed to (behind) a driving member to be struck.According to another aspect of the present disclosure, a mounting recess is formed in the striking element, into which the end of the driver is inserted. Thus, the end of the driver having a relatively small diameter can be mounted in the impact member having a relatively large diameter in a rational and easily mountable manner.According to another aspect of the present disclosure, the driving tool includes a pin inserted into the driver and the impact member. Thus, the driver and the striking element can be connected to each other with a simple structure by inserting a pin.According to another aspect of the present disclosure, the driving tool includes a tubular driver guide for guiding the movement of the driver. The driver guide is formed with an outwardly opening mounting hole. The mounting hole allows a pin to be inserted into the driver and striking element. This allows the driver and the striking element to be connected to each other while the driver and the striking element are disposed inside the driver guide.According to another aspect of the present disclosure, the driving tool includes a magazine. The magazine receives driving components which are supplied to the driving guide. The guide channel guides the driving components from the magazine to the driving channel. The guide channel is located on an extension of the mounting hole. Therefore, the pin inserted through the attachment hole can be pressed toward the guide channel. This allows simple separation (unlocking) between the driver and the striking element.According to another aspect of the present disclosure, the driver guide includes a driver guide portion for guiding the movement of the driver and a striking element guide portion for guiding the movement of the striking element. Thus, the driver guide can guide the movement of the impact member. This prevents misalignment of the impact member when the driving member is struck. As a result, the striking element can correctly strike the driving member.According to another aspect of the present disclosure, the driver is stopped by the elevator and held at a standby position. The mounting hole is located such that the pin can be inserted into the driver when the driver is in the standby position. Therefore, the pin can be attached or removed when the driver is held at the standby position.According to another aspect of the present disclosure, the driving tool includes a piston connected to the driver and a cylinder for generating a gas pressure through the piston. Therefore, the driver can hit the driving member using the gas pressure.Hereinafter, an embodiment of the present disclosure will be described with reference to FIGS. 1 to 6. As shown in FIG. 1, a driving tool (also referred to as a nailer or stapler) 10 is a gas spring-type driving tool that uses, for example, a gas pressure for driving driving driving components (e.g., nail or clamp). In the following description, a driving direction of the driving member is referred to as a downward direction, and a counter-driving direction is referred to as an upward direction. A user grasps the driving tool 10 with his hand and is positioned on the right side in FIG. 1. The front side of the user is referred to as a rearward direction (user side), and a rear side is referred to as a forward direction. A left-right direction is determined with respect to a position of the user.As shown in FIG. 1, the driving tool 10 includes a tool body 1. The tool body 1 has a substantially cylindrical housing 1 a. The housing 1a is configured to receive a tubular cylinder 1b and an upper portion of a nose 5 connected to a lower portion of the cylinder 1b. A lower portion of the nose 5 projects downward from the housing 1a.As shown in FIG. 1, the nose 5 has a metal driving guide 5 aand a contact arm 5 hmounted on a lower portion of the driving guide 5 a. The contact arm 5 his allowed to slide up and down relative to the driver guide 5 a. The contact arm 5 his biased by a spring or the like to move downward relative to the driver guide 5 a. The contact arm 5h can move upward when pressed against a workpiece, for example.As shown in FIG. 3, a driving channel 5 bis formed inside the driving guide 5 a. The driving guide 5a has a guide channel 5m protruding rearward from the driving channel 5b. The guide channel 5 mis a plate-shaped member that protrudes obliquely upward toward the rear side. The guide channel 5m is made of a single component integral with the driver guide 5a. The driver guide 5a is coupled to the magazine 18 via the guide channel 5m. The magazine 18 receives a plurality of driving members 8. Each driving member 8 is fed one by one from the magazine 18 to the driving guide 5a in an orientation extending upward and downward. Each driving member 8 is guided to the driving channel 5 bvia the guide channel 5 m.As shown in Fig. 2, the cylinder 1b slidably holds a piston 1c. The piston 1 cmay move in the up-down direction inside the cylinder 1 b. An upper portion of the cylinder 1b above the piston 1c is communicated with an accumulator chamber 1d. The pressure storage chamber 1 dis filled with a compressed gas such as air. The gas pressure inside the pressure storage chamber 1d serves as a thrust force for moving the piston 1c downward. A damper 1 eis disposed at a lower portion of the cylinder 1 b. The damper 1 eaccommodates the piston 1 cthat has moved downward to the lower movement end. The damper 1e suppresses the shock of the piston 1c at the lower movement end.As shown in FIG. 2, an upward and downward elongated driver 2 is coupled to a lower side of the piston 1 c. The driver 2 moves down within the driver guide 5a when the plunger 1c moves down. The driver 2 strikes a driving member 8 which is fed into the driving channel 5b. The struck driving member 8 is ejected from an ejection opening 5c. The ejected driving member 8 is driven into the workpiece.As shown in FIG. 1, an upper rear portion of the housing 1 ais provided with a grip 11 for gripping by the user. The handle is substantially cylindrical in shape. The handle 11 extends rearward. A battery mounting portion 14 is provided at a rear portion of the handle 11. A battery pack 15 can be removably mounted to a rear side of the battery mounting portion 14. The battery pack 15 can be removed from the battery mounting portion 14 and repeatedly charged for use with a separately provided charger. The battery pack 15 serves as a power source for supplying electric power to a drive unit 7, which will be described later.As shown in FIG. 1, the battery mounting portion 14 is a box-like member that extends upward and downward. A controller 13 is provided inside the battery mounting portion 14. A substantially cylindrical drive unit case 16 is integrally connected to a lower front portion of the battery mounting portion 14. The front portion of the drive unit case 16 is integrally connected to a lower rear portion of the case 1a. The drive unit 7 is accommodated inside the drive unit housing 16. The drive unit 7 includes a motor 7 aas a drive source and a reduction gear train 7 bconnected to the motor 7 a.As shown in FIG. 1, a trigger 12 is provided at a lower front portion of the handle 11 such that the user can press it with his fingertip to operate. When the contact arm 5 his moved upward relative to the driving guide 5 a, a pressing operation on the trigger 12 is enabled (effective). A switch 17 is provided above the trigger 12. The pressing operation of the trigger 12 causes the switch 17 to be pressed upward. Thereby, the switch 17 is switched to an ON state. The switch 17 in the ON state transmits a signal to the controller 13, and the controller 13 drives a motor 7 abased on the transmitted signal. A rotational output of the motor 7a is stepped down by the reduction gear train 7b and output to a lifting device 6 on the front side. The lifting device 6 rotates about the same axis as a motor axis 7c.As shown in FIG. 2, the lifting device 6 is provided at a lower right side of the cylinder 1 b. The lifting device 6 rotates upward together with the piston 1 cto return the driver 2 moved downward. The lifting device 6 includes a rotating shaft 6 bconnected to the driving unit 7 (FIG. 1 ) and a wheel 6 amounted by the rotating shaft 6 b. The rotating shaft 6 brotates in a direction indicated by an arrow R (counterclockwise in FIG. 2 ). Rotation of the rotating shaft 6b also causes the wheel 6a to rotate counterclockwise. The wheel 6a is restricted from rotating clockwise. The lifting device 6 has a plurality of engaging portions 6 cprovided along an outer circumferential edge of the wheel 6 a. A cylindrical shaft member is used for each of the engaging portions 6c. Each engagement portion 6 cextends in the front-rear direction. Six engaging portions 6c are provided on the wheel 6a in a range corresponding to about three quarters of the circumference. The remaining portion corresponding to one quarter of the circumference is referred to as a relief portion in which the engaging portions 6 care not disposed. Each engaging portion 6c engages with the driver 2.As shown in FIG. 2, the driver 2 is a plate-like member having a rectangular cross section. The driver 2 has a plurality of engaged portions 2a (rack teeth). Each engaged portion 2a projects rightward from a right side portion of the driver 2. Each engaged portion 2 ais formed to have the shape of a rack tooth. Specifically, six engaged portions 2 aare aligned (aligned) in the longitudinal direction (up-down direction) of the driver 2. A lower side of each engaged portion 2 ais oriented toward the driving direction (downward) side. The lower side of each engaged portion 2a is engaged with each engaging portion 6c of the jack 6. When the lifting device 6 rotates in the direction R, the engaging portions 6c successively engage with the engaged portions 2a of the driver 2, and thus the driver 2 and the piston 1c are returned upward. When the piston 1 cis returned, the gas pressure inside the pressure storage chamber 1 dis increased. FIGS. 2 and 3 show the driver 2 set at a standby position before a driving operation is performed.As shown in FIGS. 2 and 3, the driver 2 has a protrusion 2 bthat is elongated in the up-down direction. The protrusion 2b protrudes forward from a front side portion of the driver 2. The protrusion 2 bis formed at a center of the driver 2 in the up-down direction. As shown in FIG. 4, inside the driver guide 5a, a driver guide portion 5d for supporting the driver 2 from the periphery thereof is formed. The driver guide portion 5 dforms a substantially rectangular shape in a cross section corresponding to the shape of the driver 2. The driver guiding portion 5 dmay guide the up-down movement of the driver 2. The driver guide portion 5d supports the driver 2 from a left side with its left support portion 5r. The left storage portion 5 rmay receive the leftward pressure applied to the driver 2 while the elevator 6 is rotating. The left support portion 5 rcan prevent the driver 2 from being deformed in the left direction due to the pressure from the lifting device 6. Further, the driver guide portion 5d is formed with a recess 5n conforming to the projection 2b of the driver 2. Interference between the driver guide portion 5d and the projection 2b can be prevented by the recess 5n. The right support portion 5 pof the recess 5 nmay support the protrusion 2 bfrom the right side. Therefore, the driver 2 is prevented from slipping out to the right side.As shown in FIGS. 2 and 3, the driver 2 has a striking element 3 attached to a tip 2 cof the driver 2. The striking element 3 moves upward and downward in the driver guide 5 atogether with the driver 2. The striking element 3 strikes the driving member 8 that is supplied into the driving channel 5 bwhile the driver 2 moves downward. As shown in FIG. 3, the striking element 3 strikes a circular flange-like nail head 8 aof the driving member 8, and the driving guide 5 aincludes a tubular striking element guide portion 5 ewhich supports the periphery of the striking element 3. The striking element guide portion 5e can guide the movement upward and downward of the striking element 3. An inner diameter of the striking element guide portion 5 eis larger than an inner diameter of the driving guide portion 5 d.As shown in FIG. 5, the impact member 3 is a substantially cylindrical metal member. On a lower side of the striking element 3, a striking surface 3a is formed which comes into contact with the nail head 8a during striking. The striking surface 3a forms a substantially circular shape conforming to the shape of the nail head 8a. The striking surface 3a has a circular arc portion 3b conforming to a peripheral edge of the nail head 8a, and a first cut edge 3c and a second cut edge 3j formed by partially cutting the circular arc portion 3b. The first cut edge 3c and the second cut edge 3j are formed symmetrically with respect to the center of the impact surface 3a. The impact surface 3 ais larger than a distal end surface 2 eof the driver 2, which is a rectangular cross section. Further, the circular arc portion 3b allows the striking surface 3a to conform to the shape of the nail head 8a. Further, the striking element 3 can strike the nail head 8a uniformly over a relatively wide (wide) range. This allows the impact member 3 to impact the driving member 8 efficiently. Moreover, it is possible to prevent deformation of a part of the nail head 8 aduring striking.As shown in FIG. 5, each lateral peripheral side of the impact member 3 is formed with a first cut surface 3 eand a second cut surface 3 fformed by partially cutting the guide surface 3 d. The guide surface 3 dis supported by the striking element guide portion 5 e(FIG. 2 ). The first cut surface 3e faces forward. The second cut surface 3 ffaces rearward. The first cut surface 3 eand the second cut surface 3 fare symmetrical with respect to the central axis of the impact member 3.As shown in FIG. 5, the impact member 3 has a mounting groove 3h recessed downward from its upper side. The mounting groove 3 his formed over the entire left-right direction. The mounting groove 3h is recessed in a rectangular shape conforming to the shape of the tip 2c of the driver 2. The tip 2c of the driver 2 is inserted into the mounting groove 3h. The inserted tip 2 cmatches into the attachment groove 3 h. The impact member 3 also has a round hole-shaped first insertion hole 3 kand a second insertion hole 3 mmeating in the front-rear direction. The first insertion hole 3 kis formed in the first cut surface 3 e. The second insertion hole 3 mis formed in the second cut surface 3 f. Center axes of the first insertion hole 3 kand the second insertion hole 3 mare placed on the same axis with each other. This same axis passes through the mounting groove 3h.As shown in FIG. 5, the tip 2 cof the driver 2 is formed with a driver insertion hole 2 dpassing in the front-rear direction. The driver insertion hole 2 dis formed as an elongated hole elongated in the up-down direction. When the tip 2 cis inserted into the mounting groove 3 h, the driver insertion hole 2 dis communicated with the first insertion hole 3 kand the second insertion hole 3 m. A pin 4 is press-fitted from the front through the first insertion hole 3k, the second insertion hole 3m and the driver insertion hole 2d which communicate. Thus, as shown in FIG. 3, the striking element 3 is connected to the tip 2 cof the driver 2.As shown in FIGS. 3 and 5, the driving guide 5 aincludes a round hole-shaped guide mounting hole 5 fpassing in the front-rear direction. An inner diameter of the guide attachment hole 5 fis slightly larger than an outer diameter of the pin 4. The contact arm 5 hincludes a round hole-shaped arm attachment hole 5 kthat passes through in the front-rear direction. An inner diameter of the arm attachment hole 5 kis larger than the outer diameter of the pin 4. As shown in FIG. 3, when the contact arm 5 his moved downward with respect to the driver guide 5 a, the arm attachment hole 5 kand the guide attachment hole 5 fare placed on the same axis. Therefore, when the contact arm 5h is moved downward, the pin 4 can be inserted into the driving guide 5a from the outside of the nose 5.As shown in FIG. 3, the driver 2 set at the standby position enters the drive channel 5b. The driver insertion hole 2 dis placed on the same axis as the guide attachment hole 5 fand the arm attachment hole 5 k. The first insertion hole 3 kand the second insertion hole 3 mof the impact member 3 are also placed on the same axis as the guide attachment hole 5 fand the arm attachment hole 5 k. Therefore, the pin 4 can be inserted through the arm attachment hole 5k and the guide attachment hole 5f to be press-fitted into the first insertion hole 3k, the second insertion hole 3m and the driver insertion hole 2d. The striking element 3 can thus be connected to the driver 2 within the driver guide 5 a.As shown in FIG. 3, the guide channel 5 mis located on an extension behind the guide mounting hole 5 f. Therefore, when the driver 2 is set in the standby position, the pin 4 can be pressed from the guide mounting hole 5f side to the rear side. This allows the pin 4 to be pushed out into the guide channel 5 m. In this case, the impact element 3 can be removed from the driver 2. Further, the impact member 3 in the standby position is also located at the setting position (see FIG. 6 ) of the driving member 8, and therefore, with the driving member 2 set at the standby position, the driving member 8 is not supplied to the setting position. Thus, even if the driver 2 moves downward at an undesired timing, the driving member 8 is not struck. This ensures that accidental ejection of the driving member 8 is reliably prevented.FIG. 6 shows the driver 2 which is located in a loaded position above the standby position and the driving member 8 is fixed in the fixing position. In the loaded position, the impact element 3 is positioned above the fixing position of the driving-in components 8. This allows the driving members 8 to be supplied into the driving channel 5 b. One of the driving members 8 is fed into the driving channel 5b by a feeding mechanism 19. The second cut surface 3f and the second cut edge 3j of the impact member 3 are oriented toward the magazine 18 behind. Therefore, the striking element 3 is less likely to interfere with the next driving member 8 in order from the driving member 8 set in the driving channel 5 bas it moves downward. This allows the striking element 3 to move downward correctly.As described above and as shown in FIG. 2, the driving tool 10 includes a plate-shaped driver 2 having engaged portions 2 a. The lifting device 6 engages with the engaged portions 2a. The lifting device 6 allows the driver 2 to move. As shown in FIG. 3, the striking element 3 is connected to the tip 2 cof the driver 2. The impact member 3 impacts the driving member 8. the area of the impact surface 3 aof the impact member 3 is larger than the area of the tip 2 cof the driver 2. therefore, the impact member 3 having a larger area than the tip 2 cof the driver 2 impacts the driving member 8. It is thus possible to reduce the weight increase with the simple connection structure of the impact member 3 to the tip 2 cof the driver 2.As shown in FIG. 5, the striking element 3 is detachably connected to the driver 2. This allows the striking element 3 to be easily replaced.As shown in FIG. 5, the driving member 8 has a nail head 8 athat has an at least partially circular arc shape. The striking element 3 has the circular arc region 3 b. Therefore, the striking element 3 can easily strike the nail head 8 aof the driving member 8.As shown in FIG. 3, the driving tool 10 has a magazine 18 for accommodating the driving members 8. The impact surface 3 aof the impact member 3 has the second cut edge 3 jformed by cutting a portion of a circle. The impact member 3 is positioned such that the second cut edge 3j is oriented toward the magazine 18. Normally, the magazine 18 receives a plurality of driving members 8 connected in a row. Therefore, when the second cut edge 3 jis oriented toward the magazine 18, the impact member 3 is less likely to interfere with the driving member 8 disposed toward (behind) the driving member 8 to be struck.As shown in FIG. 5, the mounting recess 3 his formed in the striking element 3 into which the tip 2 cof the driver 2 is inserted. Thus, the tip 2 cof the driver 2 having a relatively small diameter can be mounted on the impact member 3 having a relatively large diameter.As shown in FIG. 3, the driving tool 10 includes the pin 4 inserted into the driver 2 and the impact member 3. Thus, the driver 2 and the striking element 3 can be connected to each other with a simple structure by inserting the pin 4.As shown in FIG. 3, the driving tool 10 includes the tubular driver guide 5 afor guiding the movement of the driver 2. The driving guide 5a is formed with the guide mounting hole 5f opening to the outside. The guide mounting hole 5f allows the pin 4 to be inserted into the driver 2 and the impact member 3. This allows the driver 2 and the striking element 3 to be connected to each other while the driver 2 and the striking element 3 are disposed inside the driver guide 5 a.As shown in FIG. 3, the driving tool 10 includes the magazine 18. The magazine 18 receives driving members 8 to be fed to the driving guide 5a. The guide channel 5 mroutes the driving components 8 from the magazine 18 to the driving channel 5 b. The guide channel 5m is located on an extension of the guide mounting hole 5f. Therefore, the pin 4 inserted through the guide mounting hole 5 fcan be pressed toward the guide channel 5 m. This enables simple separation between the driver 2 and the striking element 3.As shown in FIG. 3, the driver guide 5 aincludes the driver guide portion 5 dfor guiding the movement of the driver 2 and the impact member guide portion 5 efor guiding the movement of the impact member 3. Therefore, the driver guide 5 acan guide the movement of the impact member 3. This prevents misalignment of the impact member 3 when the driving member 8 is struck. As a result, the striking element 3 can correctly strike the driving member 8.As shown in FIG. 2, the driver 2 is stopped and held in the standby position by the elevator 6. As shown in FIG. 3, the guide mounting hole 5f is located such that the pin 4 can be inserted into the driver 2 when the driver 2 is in the standby position. Accordingly, in the standby position, the pen 4 can be attached to and removed from the driver 2.As shown in FIG. 2, the driving tool 10 includes the piston 1 cconnected to the driver 2 and the cylinder 1 bto generate a gas pressure with the piston 1 c. Therefore, the driver 2 can hit the driving member 8 using the gas pressure.Various modifications may be made to the above-described embodiments. For example, the driving tool 10 has been exemplified as a gas spring type driving tool using a gas pressure. Instead, a driving tool having a mechanical spring utilizing the spring force may be employed.The mounting recess of the impact element may be a cylindrical or rectangular recess alternative to the cut groove. A structure of the impact member has been described as an example in which the end of the driver is inserted into the cut-out groove and connected by the pin. Alternatively, a male thread (male thread) on one side may be thread-fitted with a female thread (female thread) on the other side. The end of the driver may be press-fitted into the impact member. The impact element may be inserted into a recess formed in the driver and connected by a pin. The driver and the striking element may be connected by any other method, such as by claw connection or by adhesive bonding.The impact member may have a disc shape instead of a cylindrical shape. The impact surface of the impact element may be circular without a cut edge. The impact surface may be rectangular instead of circular. The impact surface may have a shape that is not conformal to the head of the driver, as long as the impact surface is configured to impact the driver in (with) a wider area than the end of the driver. The impact member need not be cylindrical, and it may be, for example, a configuration in which the outer diameter varies along the extent, such as a truncated cone. In this case, it is desirable that the impact surface has the largest possible width diameter. The cut edge of the impact member may be configured to be provided only at a position oriented toward the magazine.The head of the driving member may be configured to have a cut edge. In this case, it is desirable that the cut edge of the impact member is disposed along the cut edge of the driving member.It is expressly emphasized that all features disclosed in the description and / or the claims are to be regarded as separate and independent from each other for the purpose of original disclosure as well as for the purpose of restricting the claimed invention independently of the combinations of features in the embodiments and / or the claims. It is expressly stated that all range specifications or specifications of groups of units disclose every possible intermediate value or subgroup of units for the purpose of original disclosure as well as for the purpose of restricting the claimed invention, in particular also as a boundary of a range specification.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedJP 6 627 990 B

[0002]

Claims

A driving tool (10) comprising a plate-shaped driver (2) having a plurality of engaged portions (2a), a lift (6) configured to engage with the plurality of engaged portions (2a) for moving the driver (2), and a striking element (3) connected to an end (2c) of the driver (2) for striking driving members (8), wherein an area of a striking surface (3a) of the striking element (3) is larger than an area of the end (2c) of the driver (2).Driving tool (10) according to claim 1, wherein the impact element (3) is removably connected to the driver (2).Driving tool (10) according to claim 1 or 2, wherein the driving component (8) has a head (8a) which is at least partially circular, and wherein the striking element (3) has a circular arc region (3b).The driving tool (10) according to any one of claims 1 to 3, wherein the impact surface (3a) of the impact member (3) has a cut edge (3j) formed by cutting a portion of a circle, and wherein the impact member (3) is positioned such that the cut edge (3j) is oriented toward a magazine (18) configured to receive the driving members (8).The driving tool (10) according to any one of claims 1 to 4, wherein a mounting recess (3h) is formed in the striking element (3) into which the end (2c) of the driver (2) is inserted.The driving tool (10) according to any one of claims 1 to 5, further comprising a pin (4) inserted into the driver (2) and the impact member (3).The driving tool (10) according to claim 6, further comprising a tubular driver guide (5a) configured to guide movement of the driver (2), and wherein the driver guide (5a) is formed with an outwardly opening attachment hole (5f) so that the pin can be inserted into the driver (2) and the impact member (3).The driving tool (10) according to claim 7, further comprising a magazine (18) configured to receive driving members (8) to be supplied to the driving guide (5a), and a guide channel (5m) configured to supply the driving members (8) from the magazine (18) to the driving channel (5b), wherein the guide channel (5m) is located on an extension of the mounting hole (5f).The driving tool (10) according to claim 7 or 8, wherein the tubular driving guide (5a) includes a driving guide portion (5d) configured to guide the movement of the driving member (2) and a striking element guide portion (5e) configured to guide the movement of the striking element (3).The driving tool (10) according to any one of claims 7 to 9, wherein the driver (2) is stopped and held by the jack (6) in a standby position, and wherein the mounting hole (5f) is located such that the pin (4) can be inserted into the driver (2) when the driver (2) is in the standby position.The driving tool (10) according to any one of claims 1 to 10, further comprising a piston (1c) connected to the driver (2), and a cylinder (1b) for generating a gas pressure inside the piston (1c).

Images