EP0367712A2 - Dispositif de pincement - Google Patents

Dispositif de pincement Download PDF

Info

Publication number
EP0367712A2
EP0367712A2 EP89710074A EP89710074A EP0367712A2 EP 0367712 A2 EP0367712 A2 EP 0367712A2 EP 89710074 A EP89710074 A EP 89710074A EP 89710074 A EP89710074 A EP 89710074A EP 0367712 A2 EP0367712 A2 EP 0367712A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
shaped body
designed
squeezing
jaws
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.)
Granted
Application number
EP89710074A
Other languages
German (de)
English (en)
Other versions
EP0367712B1 (fr
EP0367712A3 (en
Inventor
Hans-Werner Korte-Jungermann
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.)
Raiss Enzo
Original Assignee
Raiss Enzo
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 Raiss Enzo filed Critical Raiss Enzo
Priority to AT89710074T priority Critical patent/ATE76767T1/de
Publication of EP0367712A2 publication Critical patent/EP0367712A2/fr
Publication of EP0367712A3 publication Critical patent/EP0367712A3/de
Application granted granted Critical
Publication of EP0367712B1 publication Critical patent/EP0367712B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/02—Jaws
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/025—Means on frames for clamping string ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/22—Pliers provided with auxiliary tool elements, e.g. cutting edges, nail extractors

Definitions

  • the invention relates to a squeezing device for attaching sleeve-shaped bodies to plastic ropes or the like, preferably to plastic strings for tennis, squash, badminton rackets or the like, with two crossed, articulated legs, the longer rear parts of which serve as handles and the like Shorter front parts are designed as jaws designed to enclose the sleeve-shaped body, and with at least one pinch protrusion formed in at least one jaw.
  • Similar squeezing devices are known from the electrical trade, in which the squeeze cam has a surface extending parallel to the joint axis. With such a pinch cam, the sleeve-shaped body is deformed uniformly in the direction of its longitudinal axis over the length of the pinch cam.
  • a sleeve-shaped body is attached to plastic strings for sports racquets in particular with such a squeezing device, there is a risk that the string will tear at the entry point into the sleeve-shaped body when the string is subjected to high stress, since the strings of sports racquets also transversely to their longitudinal direction during the playing process are loaded and, on the other hand, the total tension or pressure occurring when using a conventional squeezing device is in each case absorbed exclusively or almost exclusively by the end of the squeezing point.
  • the invention has for its object to provide a squeezing device of the type mentioned, in which the aforementioned danger does not occur or is significantly reduced.
  • the pinch cam is designed to be tapered transversely to the pivoting plane of the legs. This ensures that the squeezing force is distributed as evenly as possible over the entire area of the sleeve-shaped body that is pressed in by the pinch cams, such that the clamping force exerted by the area of the sleeve-shaped body that is pressed in by the pinch cams after the squeezing process, as seen from the junction point of the String in the sleeve-shaped body - gradually increases.
  • This clamping force which increases over the length of the squeezing area, is achieved in a simple manner by the conical design of the squeezing cam transversely to the pivoting plane of the legs.
  • the sleeve-shaped body attached to a string by means of the squeezing device according to the invention serves to hold the string in the frame of a racket.
  • a tennis racket covered with individual strings the individual strings being held under tensile stress by sleeve-shaped bodies held at the ends of the respective strings by a head in the racket frame which is fastened by means of the crimping device according to the invention, then takes place in the respective sleeve-shaped body
  • Clamping force exerted over its length on the held string gradually increases from the point of entry of the string into the sleeve-shaped body to the opposite head end of the sleeve-shaped body.
  • the string is held in the entry region of the sleeve-shaped body less by the clamping force exerted by the squeezing process than in a region located further out.
  • the pinch cam has a conical surface, conical side surfaces and conical end surfaces.
  • the jaws following the region or the crimping cams, can have recesses opposite each other for receiving a head of the sleeve-shaped body.
  • an area of the jaws is designed as a cutting device. With such a cutting device, the end of the strings projecting beyond the head end of the sleeve-shaped body can be cut off after the squeezing process has ended.
  • a squeezing device has two crossed and articulated legs 2 and 3, for example connected by a rivet or screw 1, the longer rear parts 4 and 5 of which serve as handles, and the shorter front parts 6 and 7 of which are designed to enclose a (not shown) sleeve-shaped body Jaws are designed.
  • the jaws each have oppositely approximately semi-cylindrical recesses 8 and 9 for receiving a head of the sleeve-shaped body to be crushed, and then - seen in the longitudinal direction of the axis of the articulated connection 1 - in the front part 7 a jaw region 10 which is, for example, semi-cylindrical, and the outer contour of the rivet sleeve to be squeezed corresponds.
  • a pinch cam 11 is provided in the opposite jaw area of part 6, the details of which are explained below.
  • a cutting device is provided which has a cutting edge 12 on the front part 6 and a counter surface 13 on the front part 7 opposite thereto.
  • the cutting surface or cutting edge 12 is formed in that the upper end region of the part 6 has a recess 13.
  • the side surface of part 6 is designated 14.
  • the inside of the jaw 6 bears the reference number 15.
  • the jaws can be pivoted about the axis of the joint 1 by pivoting the front parts 4 and 5.
  • the pinch cam 11 is designed to be tapered transversely to the pivoting plane of the legs.
  • Pinch cam 11 has a conical surface 16, which is arranged opposite the recess 10 of the other front part 7. Furthermore, the pinch cam 11 has conical side surfaces 17 and 18 and also conical end surfaces 19 and 20.
  • a sleeve-shaped body which has a mushroom-shaped head at one end, is pushed onto a plastic rope, for example a plastic string for a sports racket. Then the sleeve-shaped body is gripped by the squeezing device, in such a way that the head of the sleeve-shaped body is received by the recesses 8 and 9, and the shaft of the sleeve-shaped body lies in the area in which the pinch cams 11 are present on one side . By pressing the jaws together and operating the handles 4 and 5, the sleeve-shaped body is clamped.
  • the pinch cam 11 presses into the sleeve-shaped body, which is enclosed on all sides by the shape of the jaws in the pinch area.
  • the conical configuration of the pinch cam which extends transversely to the pivoting plane of the legs ensures that the clamping force exerted by the pinching process gradually increases in the longitudinal direction of the clamped string, starting from the entry area of the string into the sleeve-shaped body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Clamps And Clips (AREA)
  • Crushing And Grinding (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Disintegrating Or Milling (AREA)
  • Saccharide Compounds (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP89710074A 1988-11-03 1989-11-02 Dispositif de pincement Expired - Lifetime EP0367712B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89710074T ATE76767T1 (de) 1988-11-03 1989-11-02 Quetschvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8813761U DE8813761U1 (de) 1988-11-03 1988-11-03 Quetschvorrichtung
DE8813761U 1988-11-03

Publications (3)

Publication Number Publication Date
EP0367712A2 true EP0367712A2 (fr) 1990-05-09
EP0367712A3 EP0367712A3 (en) 1990-09-26
EP0367712B1 EP0367712B1 (fr) 1992-06-03

Family

ID=6829498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89710074A Expired - Lifetime EP0367712B1 (fr) 1988-11-03 1989-11-02 Dispositif de pincement

Country Status (3)

Country Link
EP (1) EP0367712B1 (fr)
AT (1) ATE76767T1 (fr)
DE (2) DE8813761U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5925079A (en) * 1995-08-10 1999-07-20 Aerospatiale Societe Nationale Industrielle Process and device for guiding a mobile craft

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338524A (en) * 1940-06-08 1944-01-04 Burroughs Adding Machine Co Method of making electrical terminal fixtures
DE8624960U1 (de) * 1986-09-18 1987-08-20 Korte-Jungermann, Hans-Werner, 4156 Willich Schläger für Ballspiele, insbesondere Tennisspiele

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5925079A (en) * 1995-08-10 1999-07-20 Aerospatiale Societe Nationale Industrielle Process and device for guiding a mobile craft

Also Published As

Publication number Publication date
EP0367712B1 (fr) 1992-06-03
ATE76767T1 (de) 1992-06-15
DE8813761U1 (de) 1989-02-02
EP0367712A3 (en) 1990-09-26
DE58901603D1 (de) 1992-07-09

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