Driving tool with a flywheel mechanism

Abstract

In a driving device, in particular a nail gun, with a housing in which a driving 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) along an associated firing axis (201) for driving, in particular shooting, driving means, the drive block (230) and the hammer (220) are detachably connected to one another.

Description

State of the art

[0001] 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 along an associated firing axis for driving, in particular shooting, driving means.

[0002] 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 along an associated firing axis for driving, in particular shooting, driving in driving elements. Disclosure of the invention

[0003] 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. The flywheel mechanism comprises a flywheel that drives a drive block with a hammer along an associated firing axis for driving, in particular shooting, driving in driving means. The drive block and the hammer are detachably connected to one another.

[0004] The invention thus makes it possible to provide a driving tool in which a simple construction of the driving tool with a comparatively low weight can be provided due to the detachable connection between the drive block and the hammer.

[0005] Preferably, after a shot, during retraction of the drive block and the hammer, the drive block is released from the hammer and a predetermined distance is formed between the drive block and the hammer.

[0006] This makes it easy to prevent the drive block and hammer from jamming when retracting.

[0007] Preferably, the drive block and the hammer are connected to each other during a shot.

[0008] This allows for safe and reliable drive of the hammer during a shot.

[0009] A longitudinal extension of the drive block is preferably arranged parallel to a longitudinal axis of the hammer.

[0010] This makes it easy and uncomplicated to connect and disconnect the detachable connection.

[0011] Preferably, the longitudinal axis of the hammer is arranged coaxially to the firing axis.

[0012] This makes it easy to achieve a suitable alignment of the longitudinal axis of the hammer relative to the firing axis.

[0013] Preferably, the longitudinal extension of the drive block is arranged parallel to the firing axis during the firing.

[0014] This enables the drive block to be driven safely and reliably during a shot.

[0015] Preferably, an outer circumference of the flywheel is connected to the drive block during firing to accelerate the drive block.

[0016] This makes it easy to provide suitable propulsion during a shot.

[0017] According to one embodiment, a battery pack is provided for the mains-independent power supply of the driving unit.

[0018] This makes mobile use of the driving tool easy and uncomplicated.

[0019] Preferably, the drive block has a magnet on its end face facing the hammer to form a magnetic connection.

[0020] This makes it easy to create a detachable connection between the drive block and the hammer.

[0021] The driving unit preferably has a drive motor, wherein the flywheel has an inner receptacle which is arranged on an outer circumference of a drive axle of the drive motor.

[0022] This enables a compact and space-saving design of the driving tool. Short description of the drawings

[0023] The invention is explained in more detail in the following description using exemplary embodiments illustrated in the drawings. They show: Fig. 1 a perspective view of a nail gun driving tool with a flywheel mechanism, Fig. 2 a schematic view of the flywheel mechanism of Fig. 1 with a drive block and a hammer when retracting after a shot, Fig. 3 a schematic view of the flywheel mechanism of Fig. 1 and Fig. 2 with the drive block and the hammer during a shot, Fig. 4 a schematic view of the flywheel mechanism of Fig. 1 to Fig. 3 with the drive block and the hammer immediately after a shot, and Fig. 5 a schematic view of the flywheel mechanism of Fig. 1 to Fig. 4 with the drive block and the hammer when pulling back after a shot. Description of the embodiments

[0024] In the figures, elements with the same or comparable function are provided with identical reference symbols and are described in detail only once.

[0025] Fig. 1 shows an exemplary driving tool 100 with a housing 110 in which a driving unit 120 for driving, in particular shooting, driving materials is arranged. The driving tool 100 is preferably designed as a nail gun. The driving tool 100 is preferably designed as a flywheel nailer, with the driving unit 120 having a flywheel mechanism 125.

[0026] The housing 110 illustratively has a handle 115. An on / off switch 130 of the driving tool 100 is assigned to the handle 115, for example.

[0027] Preferably, a battery pack 190 is 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.

[0028] Furthermore, the driving tool 100 preferably has a driving agent magazine 140. The driving agent magazine 140 is designed to hold a plurality of driving agents and to release them again during insertion.

[0029] Fig. 2 shows the flywheel mechanism 125 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 arranged on an outer circumference 283 of a drive shaft 282. Preferably, the drive unit 120 is assigned a drive motor 280 for driving the flywheel 210. The drive shaft 282 is preferably assigned to the drive motor 280.

[0030] Furthermore, the flywheel mechanism 125 for driving, in particular shooting, driving agents comprises a drive block 230 and a hammer 220. The flywheel 210 is designed to drive the drive block 230 and the hammer 220 along an associated firing axis 201. The hammer 220 is designed to force a driving agent into a workpiece.

[0031] According to the invention, the drive block 230 and the hammer 220 are detachably connected to one another. The drive block 230 is preferably detached from the hammer 220 after a shot during a retraction 200 of the drive block 230 and the hammer 220. In this case, a predetermined distance 240 is preferably formed between the drive block 230 and the hammer 220. The distance 240 is preferably formed between an end face 234 of the drive block 230 facing the hammer 220 and an end face 221 of the hammer 220 facing the drive block 230.

[0032] A longitudinal extension 231 of the drive block 230 is illustratively arranged parallel to a longitudinal axis 225 of the hammer 220. Furthermore, the longitudinal axis 225 of the hammer 220 is arranged, for example, coaxially to the firing axis 201.

[0033] Preferably, the drive block 230 has a magnet 290 on its end face 234 facing the hammer 220 to form a magnetic connection. For this purpose, the hammer 220 comprises, for example, a metallic material. Alternatively, the magnet 290 can also be arranged on the end face 221 of the hammer 220 facing the drive block 230, and the drive block 230 can comprise a metallic material.

[0034] Fig. 3 shows the flywheel mechanism 125 of Fig. 1 and Fig. 2 during a shot 300. During the shot 300, the drive block 230 and the hammer 220 are connected to one another. The end face 234 of the drive block 230 and the end face 221 of the hammer 220 preferably abut one another. An outer periphery 321 of the flywheel 210 is preferably connected to the drive block 230 during the shot 300 to accelerate the drive block 230.

[0035] During the shot 300, the drive block 230 is accelerated in the direction of an arrow 301. The longitudinal extension 231 of the drive block 230 is preferably arranged parallel to the shot axis 201 during the shot 300.

[0036] Fig. 4 shows the flywheel mechanism 125 of Fig. 1 to Fig. 3 immediately after the shot 300 of Fig. 3 upon retraction 400 of the drive block 230 and the hammer 220. Here, the drive block 230 and the hammer 220 preferably move together in the direction of an arrow 401. The magnetic connection of the drive block 230 with the hammer 220 by the magnet 290 of Fig. 2 is preferably designed such that the end face 234 of the drive block 230 and the end face 221 of the hammer 220 abut one another.

[0037] Fig. 5 shows the flywheel mechanism 125 of Fig. 1 to Fig. 4 upon further retraction 500 of the drive block 230 and the hammer 220. In this case, the drive block 230 and the hammer 220 preferably continue to move in the direction of the arrow 401, whereby the acceleration of the drive block 230, however, develops a force which is preferably greater than the force acting between the drive block 230 and the hammer 220 of the magnetic connection by the magnet 290 of Fig. 2. This separates the drive block 230 and the hammer 220 from each other, so that the distance 240 from Fig. 2. At this point it should be noted that the distance 240 in Fig. 5 is smaller than in Fig. 2, since the movement of the drive block in the direction of arrow 401 in Fig. 5 is not yet completed.

Claims

[1] Driving device (100), in particular nail gun, with 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) along an associated firing axis (201) for driving, in particular shooting, driving means, characterized by that the drive block (230) and the hammer (220) are detachably connected to one another. [2] Driving tool according to claim 1, characterized by that after a shot, during a retraction (200) of the drive block (230) and the hammer (220), the drive block (230) is detached from the hammer (220) and a predetermined distance (240) is formed between the drive block (230) and the hammer (220). [3] Driving tool according to claim 1 or 2, characterized bythat during a shot (300) the drive block (230) and the hammer (220) are connected to each other. [4] Driving tool according to one of the preceding claims, characterized by that a longitudinal extension (231) of the drive block (230) is arranged parallel to a longitudinal axis (225) of the hammer (220). [5] Driving tool according to claim 4, characterized by that the longitudinal axis (225) of the hammer (220) is arranged coaxially to the firing axis (201). [6] Driving tool according to claims 4 and 5, characterized by that the longitudinal extension (231) of the drive block (230) is arranged parallel to the shot axis (201) during the shot (300). [7] Driving tool according to one of the preceding claims, characterized by that an outer circumference (321) of the flywheel (210) is connected to the drive block (230) during the shot (300) for accelerating the drive block (230). [8] Driving tool according to one of the preceding claims, characterized bythat a battery pack (190) is provided for the mains-independent power supply of the driving unit (120). [9] Driving tool according to one of the preceding claims, characterized by that the drive block (230) has a magnet (290) on its end face (234) facing the hammer (220) for forming a magnetic connection. [10] Driving tool according to one of the preceding claims, characterized by 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 axle (282) of the drive motor (280).

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