EP3184183A1 - Mechanischer spreizer - Google Patents

Mechanischer spreizer Download PDF

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Publication number
EP3184183A1
EP3184183A1 EP15201996.4A EP15201996A EP3184183A1 EP 3184183 A1 EP3184183 A1 EP 3184183A1 EP 15201996 A EP15201996 A EP 15201996A EP 3184183 A1 EP3184183 A1 EP 3184183A1
Authority
EP
European Patent Office
Prior art keywords
spacer
central rod
spacer plates
bevels
plates
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15201996.4A
Other languages
English (en)
French (fr)
Inventor
Haydar SERBES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carrosserie Technic
Original Assignee
Carrosserie Technic
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 Carrosserie Technic filed Critical Carrosserie Technic
Priority to EP15201996.4A priority Critical patent/EP3184183A1/de
Priority to US16/061,753 priority patent/US10758961B2/en
Priority to EP16819530.3A priority patent/EP3383562B1/de
Priority to CN201680075435.XA priority patent/CN108472704B/zh
Priority to PCT/EP2016/081842 priority patent/WO2017108739A1/fr
Publication of EP3184183A1 publication Critical patent/EP3184183A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels
    • B21D41/028—Enlarging by means of mandrels expandable mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/12—Straightening vehicle body parts or bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/021—Enlarging by means of tube-flaring hand tools

Definitions

  • the invention relates to the technical field of mechanical spacers, used in particular for straightening the chassis of a vehicle.
  • the invention relates more particularly to a hydraulic retractor for straightening a spar of the chassis of a vehicle.
  • the document CN102275154 discloses a hydraulic spacer comprising spacer arms actuated by a hydraulic piston. This type of spacing can be used in bodywork, in particular for straightening the frame rails of a vehicle curved due to an accident. Once the spars are straightened using a straightening square, a crease is usually observed at the initial curvature. It is then necessary to introduce a spacer tool inside the spar which is generally a beam with a hollow section. It has however been observed that the device disclosed in the document of the prior art was difficult to use and did not offer optimal performance to remove the wrinkles observed in the side members.
  • An object of the invention is to overcome the disadvantages of the prior art described above.
  • the present application therefore aims to provide a retractor easy to use and effective in bodywork straightening work, in particular to remove the wrinkles observed in the frame members of a vehicle.
  • the invention relates to a mechanical spacer along a spacing axis, characterized in that it comprises a support and two spacer plates, each spacer plate comprising at least one bevel, and in that it also comprises a central rod capable of sliding in said support between the two spacer plates, said central rod comprising a plurality of bevels having a profile complementary to the bevels of said spacer plates, the bevels of said central rod being in contact with the bevels of said spacer plates, said spacer also comprising biasing means able to exert a restoring force on the spacer plates, means for actuating the central rod in translation and means for immobilizing the spacer plates in planes perpendicular to said spacer axis.
  • the sliding of the central rod between the two spacer plates makes it possible to obtain a spacing of the said plates due to the relative sliding of the bevels of the central rod and those of the spacer plates.
  • the contact area between the bevels of the central rod and those of the spacer plates is maximum, while it is reduced during the sliding of the central rod, which causes the spacing of the plates.
  • the complementary profile of the bevels of the central rod and those of the spacer plates ensures the parallel spacing of the plates spacing, the slopes of the bevels of the central rod and the spacer plates being canceled once they placed in contact with each other.
  • the parallel spacing obtained in this way has been found to be particularly effective for body straightening work such as wrinkle removal on spars.
  • the beveled portion of the plates must advantageously occupy a large part of the surface of said plates, since during the separation, only the Beveled parts of the plates remain in contact with the bevels of the central rod which transmits the spreading force.
  • the maximum slope of the bevel machined on each spacer plate is further limited by the thickness of the spacer plates.
  • the spacer plates of the spacer according to the invention comprise at least two bevels.
  • the spacer plates of the spacer according to the invention comprise at least two bevels.
  • the spacer plates of the spacer according to the invention comprise at least two bevels.
  • the slope thereof because their length is reduced compared to the length of a single bevel.
  • a sliding of the central rod over a shorter length is necessary.
  • a shorter length of sliding of the central rod is associated with a better distribution of forces over the entire surface of the plates being spaced and consequently with increased stability and stability.
  • parallelism optimum of the spacer according to the invention it could be determined that a number of bevels equal to two offered optimal performance for the spacer according to the invention while allowing easy manufacture and a reasonable manufacturing cost for the spacer according to the invention.
  • the means for actuating the central rod in translation comprise a hydraulic cylinder system.
  • Other actuating means may also be envisaged, such as a pneumatic cylinder system or such as a thread on the central rod which is then actuated in translation by the rotation of a threaded part surrounding said central rod.
  • the Fig. 1 therefore represents an embodiment of the spacer according to the invention can be used for example for straightening the spar of a vehicle along a spacing axis 10.
  • the spacer comprises a support 1 and two spacer plates 2
  • the support 1 comprises a hollow head 7 comprising lateral openings 9, said spacer plates 2 being inserted into said lateral openings 9.
  • the support 1 also comprises a cylinder 11 in which are located the central rod and the actuating means. in translation thereof.
  • the spacer plates 2 comprise removable layers 12 attached by means of fastening means 13. In this way, the initial spacing between the spacer plates can be adjusted according to the dimensions of the spar to be straightened.
  • the spacer further comprises a front opening 9 allowing the passage of the central rod.
  • the spacer further comprises protrusions 8 around said lateral openings 9 which act as immobilizing means for the spacer plates 2 in planes perpendicular to said spacing axis 10.
  • the spacer plates must in fact only be can move in the direction of the axis of separation 10 and not be mobile in the other directions of space.
  • the Fig. 2 represents a first sectional view of the spacer according to the invention. In this view, are visible the bevels 5 of the central rod 4, as well as the passages 6 machined in the support 1 which are traversed by springs connecting the two spacer plates 2. These springs thus play the role of means of reminder about spacer plates so that they remain attached to the support.
  • the Fig. 3 represents another sectional view of the spacer according to the invention.
  • the spacer is in the initial position, that is to say before separation.
  • the bevels 5 of the central rod 4 and the bevels 3 of the spacer plates 2 are indeed in full contact with each other.
  • the spacing of the plates 2 will occur during the sliding of the central rod 4 to the front opening 9 in the support 1.
  • the plates 2 will deviate while the contact area between the bevels 5 of the central rod 4 and the bevels 3 of the spacer plates 2 will decrease.
  • the passages 6 for receiving the springs interconnecting the spacer plates are also clearly visible in order to exert a restoring force on the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP15201996.4A 2015-12-22 2015-12-22 Mechanischer spreizer Withdrawn EP3184183A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP15201996.4A EP3184183A1 (de) 2015-12-22 2015-12-22 Mechanischer spreizer
US16/061,753 US10758961B2 (en) 2015-12-22 2016-12-20 Mechanical spreader
EP16819530.3A EP3383562B1 (de) 2015-12-22 2016-12-20 Mechanischer spreizer
CN201680075435.XA CN108472704B (zh) 2015-12-22 2016-12-20 机械伸展器
PCT/EP2016/081842 WO2017108739A1 (fr) 2015-12-22 2016-12-20 Ecarteur mécanique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15201996.4A EP3184183A1 (de) 2015-12-22 2015-12-22 Mechanischer spreizer

Publications (1)

Publication Number Publication Date
EP3184183A1 true EP3184183A1 (de) 2017-06-28

Family

ID=55024899

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15201996.4A Withdrawn EP3184183A1 (de) 2015-12-22 2015-12-22 Mechanischer spreizer
EP16819530.3A Active EP3383562B1 (de) 2015-12-22 2016-12-20 Mechanischer spreizer

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16819530.3A Active EP3383562B1 (de) 2015-12-22 2016-12-20 Mechanischer spreizer

Country Status (4)

Country Link
US (1) US10758961B2 (de)
EP (2) EP3184183A1 (de)
CN (1) CN108472704B (de)
WO (1) WO2017108739A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD947637S1 (en) * 2020-01-16 2022-04-05 Yung Chi Industry Co., Ltd. Tube straightening device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447401A (en) * 1945-03-02 1948-08-17 Porter Inc H K Spreading tool for reshaping deformed automobile bodies
US2606469A (en) * 1949-12-22 1952-08-12 Gottlieb J Morgenthaler Automobile body repair jack
US2687763A (en) * 1951-05-03 1954-08-31 Bernard C Perkins Insertable and removable shape restoring press
US3635440A (en) * 1970-07-20 1972-01-18 Brammall Inc Force-exerting apparatus
CN102275154A (zh) 2010-06-11 2011-12-14 成都理工大学 新型液压剪扩器
US8511133B1 (en) * 2012-11-27 2013-08-20 Jun Fan Chen Expander for tubular elements

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919741A (en) * 1955-09-22 1960-01-05 Blaw Knox Co Cold pipe expanding apparatus
US4308736A (en) * 1979-01-05 1982-01-05 J & S Hydraulics, Inc. Tube expander
JP2817620B2 (ja) * 1994-04-22 1998-10-30 住友金属工業株式会社 メカニカル拡管機ヘッド
FI6367U1 (fi) * 2004-06-11 2004-08-27 Norcar Bsb Ab Oy Taana
DE102005010494A1 (de) * 2005-03-08 2006-09-14 Rothenberger Ag Expansionsvorrichtung für Hohlkörper
CN2900003Y (zh) * 2006-04-19 2007-05-16 尚建国 手动旋压式钢管调直机
JP5019791B2 (ja) * 2006-06-05 2012-09-05 昭和電工株式会社 パイプのエキスパンド加工装置
PT2420333E (pt) * 2010-08-16 2015-03-02 Uponor Innovation Ab Ferramenta e método de expansão de uma ponta de tubo
CN202377316U (zh) * 2011-12-01 2012-08-15 中国重型机械研究院有限公司 一种棒材矫直机压上机构
CN204448905U (zh) * 2015-01-30 2015-07-08 隆英(金坛)特钢科技有限公司 一种矫直机辊盒单辊斜楔调整装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447401A (en) * 1945-03-02 1948-08-17 Porter Inc H K Spreading tool for reshaping deformed automobile bodies
US2606469A (en) * 1949-12-22 1952-08-12 Gottlieb J Morgenthaler Automobile body repair jack
US2687763A (en) * 1951-05-03 1954-08-31 Bernard C Perkins Insertable and removable shape restoring press
US3635440A (en) * 1970-07-20 1972-01-18 Brammall Inc Force-exerting apparatus
CN102275154A (zh) 2010-06-11 2011-12-14 成都理工大学 新型液压剪扩器
US8511133B1 (en) * 2012-11-27 2013-08-20 Jun Fan Chen Expander for tubular elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD947637S1 (en) * 2020-01-16 2022-04-05 Yung Chi Industry Co., Ltd. Tube straightening device

Also Published As

Publication number Publication date
WO2017108739A1 (fr) 2017-06-29
CN108472704B (zh) 2020-05-15
EP3383562B1 (de) 2019-09-11
CN108472704A (zh) 2018-08-31
US10758961B2 (en) 2020-09-01
EP3383562A1 (de) 2018-10-10
US20180361449A1 (en) 2018-12-20

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