WO2013091264A1 - Dispositif de protection d'outil de sablage - Google Patents

Dispositif de protection d'outil de sablage Download PDF

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Publication number
WO2013091264A1
WO2013091264A1 PCT/CN2011/084997 CN2011084997W WO2013091264A1 WO 2013091264 A1 WO2013091264 A1 WO 2013091264A1 CN 2011084997 W CN2011084997 W CN 2011084997W WO 2013091264 A1 WO2013091264 A1 WO 2013091264A1
Authority
WO
WIPO (PCT)
Prior art keywords
disposed
front cover
protecting cover
hoop
brake member
Prior art date
Application number
PCT/CN2011/084997
Other languages
English (en)
Chinese (zh)
Inventor
吴明厅
Original Assignee
上海锐奇工具股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海锐奇工具股份有限公司 filed Critical 上海锐奇工具股份有限公司
Publication of WO2013091264A1 publication Critical patent/WO2013091264A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
    • B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools

Definitions

  • the utility model relates to a sanding tool protection device, which is mainly used for providing a protection function for a sanding tool, and can realize rapid clamping without any tools, and belongs to the technical field of tools. Background technique
  • a number of sanding tools are currently equipped with a protective device, such as the one disclosed in EP 2119534 A1, which is particularly suitable for use in an angle grinder.
  • the structure is: The protective cover rotates around the axis of the power tool within a limited range.
  • a housing with a fan-shaped bottom wall, a plurality of limiting blocks arranged coaxially on the bottom wall along a fan-shaped arc, which are paired with the counter-limit block on the power tool to protect
  • the cover is in the selected working position, and in order to limit the movement, at least one axially extending stop in the semi-arc circumferential direction, the stop can move relatively opposite the limit position, characterized in that: the stop forms a slit A partially curved outwardly extending leg is mounted thereon so that the counter stop can be inserted into the slit.
  • FIG. 201792264 U Another example is an explosion-proof protective cover for an angle grinder disclosed in CN 201792264 U.
  • the structure is: comprising a front cover mounted on the machine and a shield body disposed on the front cover, wherein: The front part of the cover is provided with a round table on which the protective cover body is mounted, and the rear end of the protective cover body is provided with a holding card and hung on the round table and is tightly connected by a fastener, and a rotation angle of the protective cover body is arranged between the holding card and the round table.
  • Limit structure comprising a front cover mounted on the machine and a shield body disposed on the front cover, wherein: The front part of the cover is provided with a round table on which the protective cover body is mounted, and the rear end of the protective cover body is provided with a holding card and hung on the round table and is tightly connected by a fastener, and a rotation angle of the protective cover body is arranged between the holding card and the round table.
  • the limiting structure comprises a pin point protruding from the inner side surface of the holding card and a limiting pin corresponding to the card point disposed on the side of the round table, and a pin hole for inserting the limiting pin is arranged on the side of the round table.
  • a ring groove for placing a card point is arranged on the side of the round table, and the pin hole is disposed in the ring groove. After the limit pin is inserted into the pin hole, the top end of the limit pin extends beyond the bottom surface of the ring groove and does not extend beyond the side of the ring table.
  • the limit pin is a spring pin
  • the fastener is a bolt and a nut
  • the two ends of the card are provided with a connecting head
  • the connecting head is provided with a through hole for wearing the bolt.
  • a hand-held power tool as disclosed in US 2009/0029635 the structure of which is: With a sheet-like turning tool, the hand tool comprises a flanged casing or a neck, a protective cover having a neck of the shield or a neck of the protective neck, and an annular hoop thereon, The hoop can be tightened with a tool.
  • a lock block that prevents rotation is inserted between the shield and the neck to form a special structure, characterized in that the tightening tool can be brought into contact with the neck several times in its wrapped position in its released position. No longer maintains the shape of the neck.
  • a power tool for driving a wheeled disc or a cutting blade as disclosed in US Pat. No. 5,766,062, the structure of which comprises: a housing, a rotary output spindle with a flange supporting the blade, and a guide in the housing a positionally adjustable shield on the flange and a brake device for determining the working position, the function of which is to actively insert a locking hole in the shield to lock the latter in a position selectable relative to the housing, wherein the support flange has a plurality of circumferential zigzag notches, and the braking device includes a locking bolt that is movable between the first position in the longitudinal direction for insertion into any of the locking holes in the shield, and in the second position, it can be inserted into the shield The lock hole and any serrated notch on the support flange, in the third position, it disengages any of the lock holes on the shield and any zigzag notch on the support flange, the spring device is used to lock the bolt Go back to the first position.
  • a polishing machine with a rotating protective cover has the following structural features: a packing gland comprising a base and a connecting member, wherein the connecting member is arranged with a locking sleeve in a circumferential direction; A working disc powered by a drive member, a movable and rotating coupling hoop on the outer circumference of the packing gland, a protective cover mounted above the disc to protect the operator, and a protective cover in the tianlian gland A fixed or moving switch piece.
  • the purpose of the utility model is to provide a sanding tool protection device, which can realize the functions of simple protection and can complete the loading and unloading and angle adjustment of the protective cover without any tools.
  • the technical solution of the present invention provides a sanding tool protection device, including a protective cover, a shroud hoop, a front cover, a 0-ring and a screw, and the shroud hoop is disposed on the protective cover by a screw.
  • the upper end of the front cover is disposed in the central hole of the shield and the shroud hoop, and the 0-ring is disposed in a predetermined slot at the lower end of the front cover, wherein the pull-type elastic locking mechanism is disposed on the shroud of the shroud
  • the pull-type elastic locking mechanism is composed of a brake member and a torsion spring, and a tail end of the torsion spring is connected with the brake member, and one end of the brake member is disposed on the shield Outside the hoop, the other end is disposed in the groove of the front cover, and the indexing piece is arranged in the hoop of the shroud.
  • the utility model replaces the traditional bolt with the pull pin type elastic locking mechanism to realize the control of the guard hoop, that is, the operation of loading and unloading the shield and adjusting the angle.
  • the utility model has the advantages that the operator can realize the operation of loading, unloading, adjusting the angle and locking of the protective cover by the simple operation of pulling and loosening the braking member in the pull-type elastic locking mechanism, without any tools, operation Convenient and simple.
  • the impact of the vibration on the shroud of the shroud is reduced, the possibility of deformation of the shroud of the shroud is reduced, and the reliability is improved.
  • Figure 1 is a side elevational view of a sanding tool guard
  • FIG. 2 is a schematic plan view showing a structure of a sanding tool guard when the brake member is locked
  • Figure 3 is a top plan view of a sanding tool guard when the brake is released
  • Figure 4 is a top plan view of the sanding tool guard after the brake is removed. detailed description
  • the utility model provides a sanding tool protection device, as shown in Fig. 1, comprising a protective cover 1, a brake member 2, a shield hoop 3, a front cover 4, an O-ring 5, a screw 6, and an indexing member 7 And torsion spring 8.
  • the shroud hoop 3 is fixed under the protective cover 1 by means of a screw 6, and the protective cover 1 is fitted into the front cover 4 together with the shroud hoop 3, and the O-ring 5 is fitted at the same time, so that the protective cover is fitted to the front cover 4.
  • the pull-type elastic locking mechanism and the indexing member 7 composed of the brake member 2 and the torsion spring 8 are housed in the shield hoop 3 except that one end of the brake member is exposed to the shroud hoop 3.
  • the torsion spring 8 is embedded in the shroud hoop 3, and one end of the torsion spring 8 is fixed to the brake member 2, and the end of the brake member 2 is inserted into the corresponding recess of the front cover 4.
  • the indexing member 7 is also embedded in the shroud hoop 3, and when the detent member 2 is inserted into the recess of the front cover 4, the indexing member 7 enters the corresponding recess of the front cover 4.
  • the protective cover 1, the brake member 2, the indexing member 7, the torsion spring 8 and the like are fastened to the front cover 4 by the screws 6 to fasten the components such as the cover hoop 3 and the like.
  • the groove is correspondingly assembled into the front cover 4, and the indexing member 7 also corresponds to the predetermined groove of the front cover 4; when in use, as shown in FIG. 3, the pulling brake member 2 is exposed outside the shield hoop 3
  • One end of the brake member 2 is separated from the groove of the front cover 4, and then can be turned
  • the movable protective cover 1 realizes free rotation within 0° - 270°.
  • the indexing member 7 In each protective position, the indexing member 7 will be caught in the preset groove of the front cover 4 to serve as a wake-up function, and if rotated to a desired position, loose
  • the opening brake member 2 causes one end of the braking member 2 to be caught in the groove on the front cover 4 to complete the assembly operation.
  • the brake member 2 When disassembling, the brake member 2 is pulled out of the groove of the front cover 4, and then rotated to the position at the time of assembly to be taken out from the front cover 4. The entire assembly, disassembly and angle adjustment can be achieved without the need for additional tools.
  • the indexing member 7 enters or leaves the groove on the front cover 4 as the brake member 2 enters or leaves the recess of the front cover 4, whether during assembly, disassembly or adjustment of the angle. To remind the operator that the brake member 2 has been rotated to a positioning point, and the 0-ring 5 provides a certain damping effect between the shroud hoop 3 and the front cover 4, improving stability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

L'invention concerne un dispositif de protection d'outil de sablage comprenant un couvercle de protection (1), un cerceau de maintien (3) de couvercle de protection, un couvercle avant (4), une bague torique (5) et une vis (6). Le cerceau de maintien de couvercle de protection est disposé en dessous du couvercle de protection à l'aide de la vis. Une extrémité supérieure du couvercle avant est disposée dans le couvercle de protection et un trou central du cerceau de maintien de couvercle de protection. La bague torique est disposée dans une gorge prédéfinie située au niveau d'une extrémité inférieure du couvercle avant. Un mécanisme de verrouillage élastique à goupille est disposé dans le cerceau de maintien de couvercle de protection et est composé d'un élément de freinage (2) et d'un ressort de torsion (8). L'extrémité de queue du ressort de torsion est reliée à l'élément de freinage. Une extrémité de l'élément de freinage est disposée à l'extérieur du cerceau de maintien de couvercle de protection, et l'autre extrémité de l'élément de freinage est disposée dans une gorge du couvercle avant. Un élément d'échelonnement (7) est disposé dans le cerceau de maintien de couvercle de protection. Un opérateur peut mettre en œuvre les opérations de montage et démontage du couvercle de protection, de réglage d'angle et de verrouillage en tirant ou libérant simplement l'élément de freinage dans le mécanisme de verrouillage élastique à goupille sans utiliser le moindre outil. Pour cette raison, le dispositif de protection d'outil de sablage est commode à utiliser et de structure simple.
PCT/CN2011/084997 2011-12-19 2011-12-30 Dispositif de protection d'outil de sablage WO2013091264A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201120533085.1 2011-12-19
CN 201120533085 CN202367597U (zh) 2011-12-19 2011-12-19 一种砂磨工具防护装置

Publications (1)

Publication Number Publication Date
WO2013091264A1 true WO2013091264A1 (fr) 2013-06-27

Family

ID=46591320

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/084997 WO2013091264A1 (fr) 2011-12-19 2011-12-30 Dispositif de protection d'outil de sablage

Country Status (2)

Country Link
CN (1) CN202367597U (fr)
WO (1) WO2013091264A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3546124A1 (fr) * 2018-03-29 2019-10-02 HILTI Aktiengesellschaft Appareil de meulage d'angle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014047122A1 (fr) 2012-09-18 2014-03-27 Ingersoll-Rand Company Outils de meulage dotés de protection
WO2024168050A1 (fr) * 2023-02-07 2024-08-15 Milwaukee Electric Tool Corporation Meuleuse d'angle comprenant une protection non amovible

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766062A (en) * 1996-06-13 1998-06-16 Atlas Copco Tools Ab Portable power tool
CN101293330A (zh) * 2007-04-28 2008-10-29 苏州宝时得电动工具有限公司 具有护罩的动力工具
CN201224062Y (zh) * 2008-06-30 2009-04-22 上海锐奇工具有限公司 一种砂轮防护装置
CN201711848U (zh) * 2010-02-09 2011-01-19 南京德朔实业有限公司 一种动力工具
CN201889718U (zh) * 2010-08-04 2011-07-06 上海锐奇工具股份有限公司 一种防护罩固定装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766062A (en) * 1996-06-13 1998-06-16 Atlas Copco Tools Ab Portable power tool
CN101293330A (zh) * 2007-04-28 2008-10-29 苏州宝时得电动工具有限公司 具有护罩的动力工具
CN201224062Y (zh) * 2008-06-30 2009-04-22 上海锐奇工具有限公司 一种砂轮防护装置
CN201711848U (zh) * 2010-02-09 2011-01-19 南京德朔实业有限公司 一种动力工具
CN201889718U (zh) * 2010-08-04 2011-07-06 上海锐奇工具股份有限公司 一种防护罩固定装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3546124A1 (fr) * 2018-03-29 2019-10-02 HILTI Aktiengesellschaft Appareil de meulage d'angle
WO2019185397A3 (fr) * 2018-03-29 2019-11-28 Hilti Aktiengesellschaft Rectifieuse d'angle

Also Published As

Publication number Publication date
CN202367597U (zh) 2012-08-08

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