EP0348871A2 - Vorrichtung zum Ziehen von Sicherungen - Google Patents

Vorrichtung zum Ziehen von Sicherungen Download PDF

Info

Publication number
EP0348871A2
EP0348871A2 EP89111621A EP89111621A EP0348871A2 EP 0348871 A2 EP0348871 A2 EP 0348871A2 EP 89111621 A EP89111621 A EP 89111621A EP 89111621 A EP89111621 A EP 89111621A EP 0348871 A2 EP0348871 A2 EP 0348871A2
Authority
EP
European Patent Office
Prior art keywords
fuse
puller
compact
insertion opening
fuse puller
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
EP89111621A
Other languages
English (en)
French (fr)
Other versions
EP0348871B1 (de
EP0348871A3 (en
Inventor
Akio Yamagata
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.)
Yazaki Corp
Original Assignee
Yazaki Corp
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 Yazaki Corp filed Critical Yazaki Corp
Publication of EP0348871A2 publication Critical patent/EP0348871A2/de
Publication of EP0348871A3 publication Critical patent/EP0348871A3/en
Application granted granted Critical
Publication of EP0348871B1 publication Critical patent/EP0348871B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0208—Tools for inserting and removing fuses

Definitions

  • the invention relates to a fuse puller for pulling a blade-type fuse.
  • a blade-type fuse 3 comprises sheet-like blades 3b and 3b serving as male terminals and connected together by a fuse wire (not shown), and an electrically insulative resin covering the upper portions of the blades 3b and 3b. the upper end portion of the resin defines a head portion 3a whose opposite sides project away from each other.
  • the blade-type fuse 3 is adapted to fit in a female terminal provided within a fuse box (not shown).
  • the female terminal holds the blades 3b and 3b by a strong resilient force to positively keep the contact between them. Consequently, it is not easy to pull the blade-type fuse 3 out of the female terminal. For this reason, a fuse puller 4, as shown in Fig. 8, is used.
  • the blade-type fuse 3 has stepped portions 3c provided as a result of the formation of the enlarged head portion 3a.
  • the fuse puller 4 has a pair of legs 4b formed integrally with opposite sides of a spring portion 4a, and each leg 4b has an engaging pawl 4c formed at its lower end. As shown in Figs. 9(b) and 9(c), the engaging pawls 4c are engaged with the stepped portions 3c of the fuse 3 to hold the fuse under the resilient force of the spring portion 4a. Then, the fuse puller 4 is pulled in the direction of an arrow P to pull the fuse 3 out of the female terminal.
  • FIG. 7 In addition to the blade-type fuse as shown in Fig. 7, another blade type fuse of a smaller size, as shown in Fig. 3, has recently been used. Such a compact-­size blade-type fuse has no enlarged head portion, and therefore cannot be pulled out of the female terminal with the conventional fuse puller, and difficulty is encountered in pulling such from a terminal fuse.
  • the present invention has been made in view of the above problems, and an object of this invention is to provide a fuse puller for pulling from a terminal a compact-size fuse of the blade-type.
  • a fuse puller comprising a hollow flexible body of a rectangular parallelepipedic shape, having a fuse insertion opening slightly greater in size than a head portion of a blade-­type fuse; and at least one projection formed on an inner surface of said rectangular parallelepipedic body in the vicinity of the insertion opening and being engageable in a groove formed in the fuse.
  • Figs. 3 and 4 show the compact-size fuse 2 of the blade-type (hereinafter referred to as "compact fuse") , with respect to which a fuse puller of the present invention can be used.
  • the compact fuse 2 comprises sheet-like blades 2c and 2c serving as male terminals and connected together by a fuse wire 2d, and an electrically-insulative resin covering the upper portions of the blades.
  • a head portion 2a is not enlarged, and instead two grooves 2b are formed in each of the opposite sides or faces of the resin portion.
  • the compact fuse 2 is adapted to be fitted in a female terminal, for example, of a fuse box of an automobile.
  • Fig. 1 shows the appearance of the fuse puller 1 provided according to the present invention.
  • the fuse puller 1 includes a hollow body 1a of a rectangular parallelepiped shape and made of a flexible material such as a resin.
  • the hollow body 1a has a square cross-section and has opposite open ends.
  • One open end 1b of the rectangular parallelepiped body 1a serves as a fuse insertion opening.
  • the longitudinal dimension W′ of the fuse insertion opening 1b is slightly greater than the longitudinal dimension W of the head portion of the fuse, and the transverse dimension H′ of the fuse insertion opening 1b is generally equal to or slightly greater than the transverse dimension H of the head portion of the fuse.
  • the body 1a has projections 1c formed on the inner surface thereof adjacent to the insertion opening 1b, the projections 1c being adapted to be received respectively in the grooves 2b formed in the compact fuse 2.
  • Figs. 2(a) to 2(c) are corss-sectional views, of the fuse puller 1 of Fig. 1.
  • the fuse puller 1 can be deformed as indicated in dots-and-dash line in Fig. 2(a) due to its own flexible nature.
  • the manner of use of the fuse puller 1 will now be described.
  • the compact fuse 2 fits in a female terminal (not shown) in such a condition as shown in Fig. 5(a).
  • the fuse puller 1 is engaged with the compact fuse 2, and a force F is applied to the fuse puller 1 as indicated in Fig. 1 to press-fit the fuse puller 1 on the compact fuse 2.
  • Each of the projections 1c formed in the vicinity of the insertion opening 1b has an inclined front surface to facilitate entry of the compact fuse 2 into the fuse puller 1. Since the insertion opening 1b of the fuse puller 1 is slightly greater than the head portion of the compact fuse 2, the fuse puller 1 is expanded as shown in Fig. 2(a), and the compact fuse 2 is forced into the insertion opening 1b of the thus expanded fuse puller 1.
  • the number of the projections 1c is equal to the number of the grooves 2b, that is to say, four, the number of the projections 1c may be less than the number of the groove 2b if there is no problem from the standpoint of the strength.
  • the provision of at least one pair of opposed projections 1c or at least one projection 1c may be sufficient.
  • the open end 1d of the fuse puller 1 of the present invention opposite to the insertion opening 1b is also open, as shown in Fig. 6.
  • the fuse puller 1 is inclined as shown in Fig. 6(b) after the compact fuse 2 is pulled out of the female terminal as shown in Fig. 6(a)
  • the compact fuse 2 is discharged from the open end 1d by itself.
  • the fuse puller of a simple construction for pulling the compact fuse can be provided, and the pulling of the fuse out of the female terminal, which has conventionally been carried out with the fingers, etc., with much difficulty, can be easily done.
  • the fuse puller of the present invention is of such a construction that it can be easily molded of a resin, for example, by injection molding.

Landscapes

  • Fuses (AREA)
EP19890111621 1988-06-28 1989-06-26 Vorrichtung zum Ziehen von Sicherungen Expired - Lifetime EP0348871B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8449588U JPH044345Y2 (de) 1988-06-28 1988-06-28
JP84495/88U 1988-06-28

Publications (3)

Publication Number Publication Date
EP0348871A2 true EP0348871A2 (de) 1990-01-03
EP0348871A3 EP0348871A3 (en) 1990-12-19
EP0348871B1 EP0348871B1 (de) 1995-04-26

Family

ID=13832226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890111621 Expired - Lifetime EP0348871B1 (de) 1988-06-28 1989-06-26 Vorrichtung zum Ziehen von Sicherungen

Country Status (3)

Country Link
EP (1) EP0348871B1 (de)
JP (1) JPH044345Y2 (de)
DE (1) DE68922343T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710974A1 (de) * 1994-11-02 1996-05-08 Sumitomo Wiring Systems, Ltd. Vorrichtung zum Ziehen von Sicherungen
CN111432580A (zh) * 2020-05-14 2020-07-17 成都肯保捷旭阳新能源电器有限公司 一种新型摩托车专用中央电器控制盒

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0740290Y2 (ja) * 1991-09-09 1995-09-13 双葉電子工業株式会社 平型ヒューズの取付構造
JP2539546Y2 (ja) * 1991-11-20 1997-06-25 矢崎総業株式会社 ヒューズプラー
DE10257589A1 (de) * 2002-12-09 2004-07-08 Daimlerchrysler Ag Messadapter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414698A (en) * 1980-02-25 1983-11-15 Kastar, Inc. Autombile fuse puller and combination circuit tester
US4475283A (en) * 1982-04-01 1984-10-09 Littelfuse, Inc. Combination fuse puller and fuse condition indicator
US4541311A (en) * 1982-05-03 1985-09-17 Idea Pioneer, Inc. Fuse puller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710974A1 (de) * 1994-11-02 1996-05-08 Sumitomo Wiring Systems, Ltd. Vorrichtung zum Ziehen von Sicherungen
US5666865A (en) * 1994-11-02 1997-09-16 Sumitomo Wiring Systems, Ltd. Fuse puller
CN111432580A (zh) * 2020-05-14 2020-07-17 成都肯保捷旭阳新能源电器有限公司 一种新型摩托车专用中央电器控制盒

Also Published As

Publication number Publication date
DE68922343T2 (de) 1995-08-31
EP0348871B1 (de) 1995-04-26
DE68922343D1 (de) 1995-06-01
EP0348871A3 (en) 1990-12-19
JPH027843U (de) 1990-01-18
JPH044345Y2 (de) 1992-02-07

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