Driving-in device with a flywheel mechanism

Abstract

The invention relates to a driving-in device, in particular a nail gun, comprising a housing in which a driving-in unit with a flywheel mechanism is arranged, wherein the flywheel mechanism has a flywheel (210) which drives a drive block (230) with a hammer (220) in order to drive in, in particular fire in, driving-in means, wherein the drive block (230) is movably connected to the hammer (220), wherein the hammer (220) can be moved linearly along an associated firing axis (201) during firing, and wherein a longitudinal extension (231) of the drive block (230) is arranged at a predefined angle (205) to the firing axis (201) during a retraction (200) of the drive block (230) and the hammer (220) after firing.

Description

[0001] Description

[0002] title

[0003] Driving tool with a flywheel mechanism

[0004] State of the art

[0005] The present invention relates to a driving device, in particular a nail gun, having a housing in which a driving unit with a flywheel mechanism is arranged, wherein the flywheel mechanism has a flywheel which drives a drive block with a hammer for driving, in particular shooting, driving means.

[0006] A nail gun-type driving device is known from the prior art. The nail gun comprises a housing in which a driving unit with a flywheel mechanism is arranged. The flywheel mechanism comprises a flywheel that drives a drive block with a hammer for driving, in particular shooting, driving fasteners.

[0007] Disclosure of the invention

[0008] The invention relates to a driving tool, in particular a nail gun, comprising a housing in which a driving unit with a flywheel mechanism is arranged, wherein the flywheel mechanism has a flywheel which drives a drive block with a hammer for driving, in particular shooting, driving means. The drive block is movably connected to the hammer, wherein the hammer is movable linearly along an associated firing axis during a shot, and wherein a longitudinal extension of the drive block is arranged at a predetermined angle to the firing axis during retraction of the drive block and the hammer after the shot. The invention thus enables the provision of a driving tool in which a simple design with a comparatively low weight can be achieved due to the movable connection of the drive block to the hammer.

[0009] Preferably, the drive block has an internal receptacle on its end face facing the hammer, and the hammer has a pin on its end face facing the drive block, wherein the pin is displaceably mounted in the internal receptacle to enable the movable connection of the drive block to the hammer.

[0010] This allows the movable connection between the drive block and the hammer to be formed in a simple manner.

[0011] Preferably, the inner receptacle has a longitudinal extension which is arranged at a predetermined angle to the longitudinal extension of the drive block.

[0012] This makes it easy and uncomplicated to move the drive block towards the hammer.

[0013] Preferably, the drive block can be pivoted around the pin.

[0014] This allows a safe and reliable movable connection between the drive block and the hammer to be formed.

[0015] The longitudinal extension of the drive block is preferably arranged parallel to the firing axis after the retraction is completed.

[0016] Thus, a suitable arrangement of the drive block relative to the hammer for a subsequent shot can be easily formed.

[0017] Preferably, the longitudinal extension of the drive block is arranged parallel to the firing axis during firing. This allows for easy and uncomplicated positioning of the drive block relative to the hammer for a shot.

[0018] An outer circumference of the flywheel is preferably connected to the drive block during firing to accelerate the drive block.

[0019] This allows for a safe and reliable drive for a shot.

[0020] Preferably, the flywheel and the drive block are spaced apart from each other during retraction.

[0021] This makes it easy to retract the drive block and the hammer without reversing the direction of rotation of the flywheel.

[0022] According to one embodiment, a battery pack is provided for the mains-independent power supply of the driving unit.

[0023] This makes mobile use of the driving tool easy and uncomplicated.

[0024] Preferably, the driving unit comprises a drive motor, wherein the flywheel has an internal receptacle arranged on an outer circumference of a drive shaft of the drive motor.

[0025] This enables a compact arrangement of the drive motor and the flywheel in the driving unit.

[0026] Short description of the drawings

[0027] The invention is explained in more detail in the following description using exemplary embodiments illustrated in the drawings. They show:

[0028] Fig. 1 is a perspective view of a nail gun-type driving tool with a flywheel mechanism, Fig. 2 is a schematic view of the flywheel mechanism of Fig. 1 with a drive block and a hammer during retraction after a shot,

[0029] Fig. 3 is a schematic view of the flywheel mechanism of Fig. 1 and Fig. 2 with the drive block and the hammer when the drive block is pivoted after retraction,

[0030] Fig. 4 is a schematic view of the flywheel mechanism of Fig. 1 to Fig. 3 with the drive block and the hammer during a shot,

[0031] Fig. 5 is a schematic view of the flywheel mechanism of Fig. 1 to Fig. 4 with the drive block and the hammer when the drive block is pivoted after a shot, and

[0032] Fig. 6 is a schematic view of the flywheel mechanism of Fig. 1 to Fig. 5 with the drive block and the hammer during retraction after a shot.

[0033] Description of the embodiments

[0034] In the figures, elements with the same or comparable function are provided with identical reference symbols and are described in detail only once.

[0035] Fig. 1 shows an exemplary driving tool 100 with a housing 110 in which a driving unit 120 for driving, in particular shooting, driving means is arranged. The driving tool 100 is preferably designed as a nail gun. Particularly preferably, the driving tool 100 is designed as a flywheel nailer, wherein the driving unit 120 has a flywheel mechanism 125.

[0036] The housing 110 illustratively has a handle 115. Furthermore, an on / off switch 130 of the driving tool 100 is assigned to the handle 115, for example. A battery pack 190 is preferably provided for the mains-independent power supply of the driving tool 100. Illustratively, the battery pack 190 is arranged in a region of the handle 115 facing away from the driving unit 120. Furthermore, an operating element 117 for actuating or activating the driving unit 120 is preferably arranged on the handle 115. Furthermore, the driving tool 100 preferably has a driving agent magazine 140. The driving agent magazine 140 is designed to accommodate a plurality of driving agents and to release them again during insertion.

[0037] Fig. 2 shows the flywheel mechanism 125 of the driving unit 120 of Fig. 1, which has a flywheel 210. According to one embodiment, the flywheel 210 has an internal receptacle 219. The internal receptacle 219 of the flywheel 210 is illustratively arranged on an outer circumference 283 of a drive shaft 282. A drive motor 280 is preferably provided to drive the flywheel 210. The drive shaft 282 is preferably associated with the drive motor 280.

[0038] Furthermore, the flywheel mechanism 125 for driving, in particular shooting, driving means comprises a drive block 230 with a hammer 220. The flywheel 210 is designed to drive the drive block 230 and the hammer 220. The hammer 220 is designed to force a driving means into a workpiece.

[0039] According to the invention, the drive block 230 is movably connected to the hammer 220. For this purpose, the drive block 230 has an internal receptacle 232 on its end face 234 facing the hammer 220, and the hammer 220 has a pin 222 on its end face 224 facing the drive block 230. The pin 222 is preferably displaceably mounted in the internal receptacle 232 to enable the movable connection of the drive block 230 to the hammer 220.

[0040] When the drive block 230 and the hammer 220 are retracted, as illustrated in Fig. 2 and designated by reference numeral 200, the pin 222 is preferably arranged at an end of the internal receptacle 232 facing the hammer 220. The internal receptacle 232 has a longitudinal extension 239, which is preferably arranged at a predetermined angle 206 to the longitudinal extension 231 of the drive block 230. The drive block 230 is preferably pivotable about the pin 222. The hammer 220 is movable linearly along an associated shot axis 201 during a shot (400 in Fig. 3), ie, when driving a driving agent into a workpiece. A longitudinal extension 231 of the drive block 230 is arranged at a predetermined angle 205 to the firing axis 201 during a retraction 200 of the drive block 230 and the hammer 220 after the shot. The flywheel 210 and the drive block 230 are preferably spaced apart from each other during the retraction 200.

[0041] Fig. 3 shows the flywheel mechanism 125 of Fig. 1 and Fig. 2 during a pivoting movement, designated by the reference numeral 300, after the retraction 200 according to Fig. 2. The drive block 230 is pivoted in the direction of an arrow 301 about the pin 222 of the hammer 220 arranged in the internal receptacle 232. As a result, the longitudinal extension 231 of the drive block 230 is arranged parallel to the firing axis 201 after the retraction 200 is completed. Furthermore, during the pivoting movement 300, the pin 222 is displaced along the longitudinal extension 239 of the internal receptacle 232 to an end of the internal receptacle 232 spaced apart from the hammer 220.

[0042] Fig. 4 shows the flywheel mechanism 125 of Fig. 1 to Fig. 3 during a shot 400. During shot 400, an outer circumference 421 of the flywheel 210 is connected to the drive block 230 for accelerating the drive block 230. In this case, the drive block 230 and the hammer 220 are accelerated in the direction of an arrow 401—illustratively to the right. Furthermore, the longitudinal extension 231 of the drive block 230 is arranged parallel to the shot axis 201 during the shot 400.

[0043] Fig. 5 shows the flywheel mechanism 125 of Fig. 1 to Fig. 4 after the shot 400 according to Fig. 4 during a pivoting 500 of the drive block 230. The drive block 230 is pivoted about the pin 222 of the hammer 220 in the direction of an arrow 501, so that the longitudinal extension 231 of the drive block 230 is arranged at the predetermined angle 205 to the shot axis 201. Furthermore, the drive block 230 moves away from the flywheel 210, so that there is no longer any contact between the drive block 230 and the flywheel 210. Preferably, the pin 222 moves in the internal receptacle 232 of the drive block 230 to the end of the internal receptacle 232 facing the hammer 220. Fig. 6 shows the flywheel mechanism 125 of Fig. 1 to Fig. 5 after the pivoting 500 of the drive block 230. Fig. 5 after the shot 400 according to Fig. 4 during the retraction 200 according to Fig. 2.The drive block 230 is arranged at a predetermined angle 205 to the firing axis 201 and moves in the direction of arrow 601—illustratively to the left. There is no contact between the drive block 230 and the flywheel 210.

Claims

Claims 1. A driving device (100), in particular a nail gun, comprising a housing (110) in which a driving unit (120) with a flywheel mechanism (125) is arranged, wherein the flywheel mechanism (125) has a flywheel (210) which drives a drive block (230) with a hammer (220) for driving in, in particular shooting in, driving means, characterized in that the drive block (230) is movably connected to the hammer (220), wherein the hammer (220) is movable linearly along an associated firing axis (201) during a shot (400), and wherein a longitudinal extent (231) of the drive block (230) is arranged at a predetermined angle (205) to the firing axis (201) during a retraction (200) of the drive block (230) and of the hammer (220) after the shot.

2. Driving tool according to claim 1, characterized in that the drive block (230) has an internal receptacle (232) on its end face (234) facing the hammer (220) and the hammer (220) has a pin (222) on its end face (224) facing the drive block (230), wherein the pin (222) is displaceably mounted in the internal receptacle (232) in order to enable the movable connection of the drive block (230) to the hammer (220).

3. Driving tool according to claim 2, characterized in that the inner receptacle (232) has a longitudinal extension (239) which is arranged at a predetermined angle (206) to the longitudinal extension (231) of the drive block (230).

4. Driving tool according to claim 2 or 3, characterized in that the drive block (230) is pivotable around the pin (222).

5. Driving tool according to one of the preceding claims, characterized in that the longitudinal extension (231) of the drive block (230) is arranged parallel to the firing axis (201) after completion of the retraction (200).

6. Driving tool according to one of the preceding claims, characterized in that the longitudinal extension (231) of the drive block (230) is arranged parallel to the firing axis (201) during the firing (400).

7. Driving tool according to one of the preceding claims, characterized in that an outer circumference (421) of the flywheel (210) is connected to the drive block (230) during the shot for accelerating the drive block (230).

8. A driving tool according to any one of the preceding claims, characterized in that the flywheel (210) and the drive block (230) are spaced apart from each other during retraction (200).

9. Driving tool according to one of the preceding claims, characterized in that a battery pack (190) is provided for the mains-independent power supply of the driving unit (120).

10. Driving tool according to one of the preceding claims, characterized in that the driving unit (120) has a drive motor (280), wherein the flywheel (210) has an internal receptacle (219) which is arranged on an outer circumference (283) of a drive shaft (282) of the drive motor (280).

Images