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DE-102016014210-B4 - DUST COLLECTION DEVICE FOR AN ELECTRICALLY OPERATED TOOL AND ELECTRICALLY OPERATED TOOL

DE102016014210B4DE 102016014210 B4DE102016014210 B4DE 102016014210B4DE-102016014210-B4

Abstract

Dust collection device (1A) for an electrically powered tool, comprising a main body housing (2) that can be attached to the electrically driven tool, a dust box (11) provided on the main body housing (2) in which a filter (38) is arranged, and a sliding section (20) which is provided on the main body housing (2) and which has a nozzle (21) with a suction opening (26) at a front end, wherein a dust channel (R) is formed from the suction opening (26) to the filter (38), characterized by the fact that the sliding section (20) is formed by several stages of pipe bodies (22, 23) which have the dust channel (R) arranged inside and whose diameter decreases towards the front, and which can be extended and retracted. a stop mechanism (55B) is provided which restricts the extension of a pipe body (23) on the small diameter side from a superposition state of adjacent pipe bodies (22), the stop mechanism (55B) comprises a detent section (81) provided on the side of the tube body (23) with a small diameter and a detent receptacle section (82) provided on the side of the tube body (22) with a large diameter, into which the detent section (81) detent, and the nozzle (21) is connected to the front end of the foremost tube body in an upward direction, wherein the locking section (81) is a sliding element (81) which is provided to be displaceable along the nozzle (21) in the up-down direction and locks into the locking receiving section (82) in the lower position.

Inventors

  • Hideki Tsuji

Assignees

  • MAKITA CORPORATION

Dates

Publication Date
20260513
Application Date
20161129
Priority Date
20160120

Claims (4)

  1. Dust collection device (1A) for an electrically driven tool, comprising a main body housing (2) that can be attached to the electrically driven tool, a dust box (11) provided on the main body housing (2) in which a filter (38) is arranged, and a sliding section (20) that is movable in a front-to-back direction and is provided on the main body housing (2) and has a nozzle (21) with a suction opening (26) at a front end, wherein a dust channel (R) is formed from the suction opening (26) to the filter (38), characterized in that the sliding section (20) is formed by several stages of tube bodies (22, 23) which have the dust channel (R) arranged inside and whose diameter decreases towards the front, and a stop mechanism (55B) is provided which prevents the extension of a tube body (23) on the side with the small diameter from a superposition state of adjacent tube bodies (22). restricts, the stop mechanism (55B) comprises a detent section (81) provided on the side of the tube body (23) with a small diameter and a detent receptacle section (82) provided on the side of the tube body (22) with a large diameter, into which the detent section (81) detent, and the nozzle (21) is connected to the front end of the foremost tube body in an upward direction, wherein the detent section (81) is a sliding element (81) which is provided to be displaceable along the nozzle (21) in an up-down direction and detent into the detent receptacle section (82) in the lower position.
  2. Dust collection device (1A) for an electrically driven tool, comprising a main body housing (2) that can be attached to the electrically driven tool, a dust box (11) provided on the main body housing (2) in which a filter (38) is arranged, and a sliding section (20) that is displaceable in a front-to-back direction and is provided on the main body housing (2) and has a nozzle (21) with a suction opening (26) at a front end, wherein a dust channel (R) is formed from the suction opening (26) to the filter (38), characterized in that the sliding section (20) is formed by several stages of tube bodies (22, 23) which have the dust channel (R) arranged inside and whose diameter decreases towards the front, and a stop mechanism (55) is provided which prevents the extension of a tube body (23) on the side with the small diameter from a superposition state of adjacent tube bodies (22). restricts, the stop mechanism (55) comprises a detent section (56) provided on the side of the tube body (23) with a small diameter and a detent receptacle section (57) provided on the side of the tube body (22) with a large diameter, into which the detent section (56) detent, and the detent section (56) is a hook (56) which is provided on the tube body (23) on the side with a small diameter and detent from the inside of the tube body (22) on the side with a large diameter into the detent receptacle section (57).
  3. Dust collection device for an electrically driven tool according to Claim 1 or 2 , characterized in that a positioning mechanism (45) which sets an initial position of the tube body (22) in relation to the main body housing (2) and a depth adjustment mechanism (50) which restricts a retracted position of the tube body (22) are provided between the main body housing (2) and the tube body of the first stage which is inserted into the main body housing (2).
  4. Electrically powered tool to which a dust collection device (1A) is attached according to one of the Claims 1 until 3 appropriate.

Description

Technical field The present invention relates to a dust collection device for an electrically powered tool, which is attached to an electrically powered tool such as an electrically powered drill or hammer drill, and to an electrically powered tool to which the dust collection device is attached. General state of the art It sometimes happens that electrically powered tools, such as an electric drill or a rotary hammer, are equipped with a dust collection device to capture dust generated by the workpiece when drilling a hole. Such a dust collection device for an electrically powered tool is made of... JP 2008- 207 258 A A known system consists of a dust collection box attached to the housing of a drill. A filter is housed within this box. The upstream side of the filter is connected to a dust collection adapter via a dust collection hose, while the downstream side is connected to a dust blower located inside the housing of the electrically driven tool. The rotation of the dust blower, in conjunction with the operation of the electrically driven tool, draws dust and air from the dust collection adapter and collects it via the dust collection hose from the filter in the dust collection box. The dust collection adapter is supported by a telescopic bearing element, which is formed from several tubular elements, and can extend and retract during drilling operations. The US 2009 / 0 148 248 A1 describes a drilling tool comprising a motor, a geared drive unit for transmitting a rotational force from the motor to rotate a drill bit, and a dust collector for collecting dust generated by a workpiece drilled with the drill bit, wherein the dust collector is provided with a through-section pierced by the drill bit, a dust extraction opening for drawing in the generated dust and the surrounding air, and a blowout opening for blowing air against an area near the piercing drill bit. The US 6 851 898 B2 The description includes a dust extraction device comprising an adjustable axial depth stop for a hand tool that is at least partially rotatable, with a radially offset, rotationally fixed, telescopic, axially limited suction tube assembly. The suction tube runs parallel to the axis of the tool and is connected at one end to a suction head. The suction tube includes an axially extending bellows. Brief description of the invention Object of the present invention Since, in such a dust collection device for an electrically driven tool of the prior art, the dust collection adapter is supported by the telescopic bearing element, it can also be used for a so-called long bit, i.e., a front-end tool of 150 mm or larger. However, because connecting the dust collection hose between the dust collection adapter and the dust collection box creates a dust channel separate from the bearing element of the dust collection adapter, there is a risk that the dust collection hose will obstruct the work. Therefore, the present invention is based on the objective of providing a dust collection device for an electrically driven tool and an electrically driven tool, wherein a dust channel can be formed without hindering the work, while at the same time a long bit can also be used. Means of solving the task The objective is achieved by the subject matter of independent claims 1 and 2 and dependent claim 4. Further embodiments are defined in the dependent claims. According to the invention, a dust collection device for an electrically driven tool comprises a main body housing that can be attached to the electrically driven tool, a dust box provided on the main body housing in which a filter is arranged, and a sliding section provided on the main body housing that is movable in a front-to-back direction and has a nozzle with a suction opening at a front end, wherein a dust channel is formed from the suction opening to the filter, and is characterized in that the sliding section is formed by several stages of tube bodies which have the dust channel arranged inside and whose diameter decreases towards the front, and which can be extended and retracted. A stop mechanism is provided which restricts the extension of a tube body on the side with the small diameter from a superposition of adjacent tube bodies. The stop mechanism comprises a detent section provided on the side of the small diameter tube body and a detent receiving section provided on the side of the large diameter tube body, into which the detent section detent. “On the side of the pipe body” includes both the case where the locking section is provided on the small diameter pipe body itself, and the case where the locking section is provided on a component such as a nozzle or the like, which is provided on the pipe body. According to independent claim 1, the nozzle is connected upwards to the front end of the foremost tube body, wherein the locking section is a sliding element which is provided to be displaceable along the nozzle in the top-bottom direction and which locks into the locking rec