EP0003494B1 - Schmelzaggregat zum Auftauen von zugefrorenen Schlössern - Google Patents

Schmelzaggregat zum Auftauen von zugefrorenen Schlössern Download PDF

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Publication number
EP0003494B1
EP0003494B1 EP19780810018 EP78810018A EP0003494B1 EP 0003494 B1 EP0003494 B1 EP 0003494B1 EP 19780810018 EP19780810018 EP 19780810018 EP 78810018 A EP78810018 A EP 78810018A EP 0003494 B1 EP0003494 B1 EP 0003494B1
Authority
EP
European Patent Office
Prior art keywords
melting
contact
bar
resistance wire
housing
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.)
Expired
Application number
EP19780810018
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0003494A1 (de
Inventor
Niilo Jaronen
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.)
ALL-PLAST Oy AB
Original Assignee
ALL-PLAST Oy AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26156898&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0003494(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from FI773109A external-priority patent/FI61071C/fi
Priority claimed from FI773509A external-priority patent/FI62747C/fi
Application filed by ALL-PLAST Oy AB filed Critical ALL-PLAST Oy AB
Publication of EP0003494A1 publication Critical patent/EP0003494A1/de
Application granted granted Critical
Publication of EP0003494B1 publication Critical patent/EP0003494B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0016—Defrosting, e.g. heating devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/80—Parts, attachments, accessories and adjuncts

Definitions

  • the object of the invention is a melting unit for thawing frozen locks with a melting rod which is heated with electricity and inserted into the lock.
  • the subject of the invention is specifically intended for car locks and is intended to make it possible to open or lock them when the lock has frozen so much due to the moisture that has entered the lock that the key cannot be inserted into the lock or turned in the lock.
  • the proposed melting unit for thawing frozen locks has a housing for receiving a melting rod that can be pushed out of the housing at one end and inserted into the lock.
  • This is designed as a thin metallic hollow body in relation to the key, with a resistance wire arranged therein, which is connected on the one hand via a metal part of the melting rod and on the other hand via an insulated contact point of the melting rod to the poles of batteries provided for heating the melting rod.
  • Such a lock deicer known from CH-A-416.873, was unsatisfactory since the power consumption was far too high and the batteries were exhausted after a short use. This was due to the fact that the heat was distributed along the entire length of the melting rod and caused only moderate heating. It was recognized that great heat development can be achieved with moderate power consumption if, according to the invention, the resistance wire is arranged at the upper end of an insulated conductor provided within the fusible link and connected to the contact point and is dimensioned so short that its heating effect is approximately on the tip of the fusible link concentrated.
  • the resistance wire is expediently inserted between the ends of two thin, electrically conductive, insulated metal tubes as a connecting piece.
  • the first version of the melting unit with dry cell batteries can be seen in FIGS. 1-3.
  • the unit has a housing 1 made of plastic, which is equipped with an upper sealing cover 2 and is divided into two parts by an intermediate wall 3. In the larger part, two round dry batteries 4 are accommodated, while in the smaller part an adjusting element 6 is guided, which carries a melting rod 5.
  • the wall of the housing 1 opposite the partition 3 is provided with a longitudinal slot 7, through which a protruding part 6 'of the adjusting member 6 emerges.
  • the circuit board is provided with an incision 20 (FIG. 3) through which the rod 5 can pass.
  • the structure of the melting rod 5 is shown in more detail in FIGS. 4 and 5.
  • a tube 18 made of insulating material is arranged within a metal tube 16 and surrounds a thin metal tube 17.
  • a thin resistance wire 19 e.g. fixed by flattening or by soldering, which measures only a small part of the rod length 5.
  • the other end of the rod 5 with the protruding metal tube 17 can be adjusted with the aid of the adjusting element 6, so that the end of the metal tube 17 touches the contact point 14. In this way, a closed circuit is formed over the resistance wire 19 and over the parts 15, 14, 17, 19, 16 and 12.
  • the tube 17 is also formed from resistance material, which is heated at a certain current intensity, but the effective heating takes place with the aid of the very thin (about 0.12 mm) resistance wire 19, which is connected in series with the tube 17.
  • a heating effect is approximately concentrated on the rod tip, where this heating effect is also desirable in order to allow the rod to penetrate into the icy keyhole.
  • very little electricity is used compared to an arrangement in which the entire length of the rod is heated.
  • the use of only small batteries is made possible in a very small device which can easily be carried in the pocket.
  • the tubes 17 and 18 with resistance wire 19 are loosely inserted into the round metal sleeve 16. This metal sleeve 16 is flattened so that it is pressed against the insulation tube 18, whereby the tubes 18 and 17 are also held in the metal sleeve 16.
  • FIGS. 6 and 7 In order to prevent the resistance wire 19 from being exposed to large temperature fluctuations and to prevent contact faults at the connection points, an improved version of the melting rod is shown in FIGS. 6 and 7.
  • a resistance wire 19 is inserted as a connecting piece between two facing ends thereof such that a short piece of wire is pushed into the tube 17 and 17' and held there.
  • the metal tube 17 has a length of 53 mm and the tube 17 'has a length of 15 mm.
  • the effective length of the resistance wire 19 is 10 mm. This is to be understood as the conductive part of the wire 19 which extends between the two metal tubes 17 and 17 '.
  • an insulation pipe is again e.g. Designated from Kaflon, which can withstand a temperature of approx. 350 ° C and is pushed over the parts 17, 19 and 17 '.
  • the free end of the metal tube 17 is bent into a U-shape, as can be seen from FIG. 7.
  • the protective metal sleeve 16 is pushed over these parts (Fig. 7) and thus the melting rod 5 is formed, which is flattened so that the parts are fixed against each other.
  • the adjusting member 6 made of plastic is fastened to the end of the melting rod 5, which also serves as a handle for the adjustment.
  • This adjusting member 6 is accommodated within the housing 1 of the unit.
  • an electrically conductive connection is made by soldering or by flattening.
  • the bent end of the tube 17 or a contact member connected to it protrudes from the adjusting member 6 and forms a connection at the contact point 14 to the metal sleeve 16, which forms the other contact point.

Landscapes

  • Battery Mounting, Suspending (AREA)
  • Resistance Heating (AREA)
  • Defrosting Systems (AREA)
  • Lock And Its Accessories (AREA)
  • Toys (AREA)
EP19780810018 1977-10-20 1978-10-13 Schmelzaggregat zum Auftauen von zugefrorenen Schlössern Expired EP0003494B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI773109 1977-10-20
FI773109A FI61071C (fi) 1977-10-20 1977-10-20 Batteridrivet smaeltningsaggregat foer nedfrusna laos
FI773509 1977-11-21
FI773509A FI62747C (fi) 1977-11-21 1977-11-21 Smaeltningsaggregat foer nedfrusna laos

Publications (2)

Publication Number Publication Date
EP0003494A1 EP0003494A1 (de) 1979-08-22
EP0003494B1 true EP0003494B1 (de) 1981-01-21

Family

ID=26156898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780810018 Expired EP0003494B1 (de) 1977-10-20 1978-10-13 Schmelzaggregat zum Auftauen von zugefrorenen Schlössern

Country Status (9)

Country Link
US (2) US4247753A (enrdf_load_stackoverflow)
EP (1) EP0003494B1 (enrdf_load_stackoverflow)
AT (1) AT357048B (enrdf_load_stackoverflow)
CA (1) CA1128591A (enrdf_load_stackoverflow)
CH (1) CH612722A5 (enrdf_load_stackoverflow)
DE (1) DE2860361D1 (enrdf_load_stackoverflow)
DK (1) DK151346C (enrdf_load_stackoverflow)
HK (1) HK3682A (enrdf_load_stackoverflow)
NO (1) NO147686C (enrdf_load_stackoverflow)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD273049S (en) 1980-09-09 1984-03-13 Lam Siu L Combination door lock de-icer and torch and key ring
FR2608346A1 (fr) * 1986-12-10 1988-06-17 Streiff Jacques Degivreur amagnetique pour serrures de vehicules
US4954300A (en) * 1989-06-14 1990-09-04 John E. Vandigriff Glass repair method and apparatus
US5142123A (en) * 1990-04-12 1992-08-25 Chou Shu Hui Electric heat sealer energizable by internal battery set or external AC adapter
US5447572A (en) * 1992-02-06 1995-09-05 Oklahoma Gas & Electric Company Method for removing debris from barrel locks
US5573685A (en) * 1996-02-05 1996-11-12 Boncaldo; Paul J. Remote control antifreeze device for a vehicle locking unit
USD398205S (en) 1997-04-10 1998-09-15 Troy Willie P Electric lock defroster
US6335515B1 (en) 1997-08-26 2002-01-01 Welcome Company, Ltd. Electric heat sealer with offset sealer portion
US6232579B1 (en) 1997-08-26 2001-05-15 Welcome Co., Ltd. Electric heat sealer with safety device
US6326594B1 (en) 1997-08-26 2001-12-04 Welcome Company, Ltd. Hand-held electric sealer with safety means
US6064038A (en) * 1998-08-12 2000-05-16 Welcome Company, Ltd. Hand-held electric sealer with detachable heat resistant cover sheet
US6936790B1 (en) * 1997-08-26 2005-08-30 Shu Hui Chou Electric heat sealer with safety device
US6770849B2 (en) * 1997-08-26 2004-08-03 Welcome Co., Ltd. Table-top electric heat sealer
US6100501A (en) * 1998-03-16 2000-08-08 Von Der Heyde; Christian P. Tick removal device with heating and illumination
TW201527026A (zh) * 2014-01-14 2015-07-16 Rong-Fa Cai 簡易式電加熱工具及其加熱裝置
CN104901368B (zh) * 2015-05-27 2017-10-31 广东欧珀移动通信有限公司 便携式移动电源
US11712793B2 (en) * 2019-06-27 2023-08-01 GOODHOUSE Enterprise Co. Ltd. Hot stapler
CN211900116U (zh) * 2020-03-27 2020-11-10 蔡海善 电机锁芯

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146854A (en) * 1936-07-27 1939-02-14 William A Conley Electrical soldering iron
US2371534A (en) * 1941-10-21 1945-03-13 Arthur C Mcgrath Keylock conditioner
US2898571A (en) * 1954-12-20 1959-08-04 Vickers Electrical Co Ltd Methods of manufacturing tubular sheathed heating elements
US2965741A (en) * 1959-06-30 1960-12-20 Blazina Anthony Lock defroster
US3022408A (en) * 1960-10-25 1962-02-20 Robert W Wagner Electrically heated key
CH416873A (de) * 1964-03-27 1966-07-15 Caneri Ludwig Schlossenteiser, insbesondere für Automobilschlösser
DE1430621A1 (de) * 1964-06-08 1968-12-12 Bierer Hermann Elektrische Heizvorrichtung fuer eine Kraftfahrzeugtuer
DE1248829B (de) * 1966-09-01 1968-03-14 ERSA Ernst Sachs K.G., 6980 Wertheim Innenbeheizter elektrischer Kleinstlötkolben für Kleinspannung
DE1553309C3 (de) * 1966-12-02 1973-12-20 Horst 1000 Berlin Brucker Vorrichtung zum Auftauen eingefrorener Schlösser
US3379854A (en) * 1967-08-25 1968-04-23 Jovis Arthur Auto lock de-icing
FR1561301A (enrdf_load_stackoverflow) * 1968-01-24 1969-03-28
GB1375768A (enrdf_load_stackoverflow) * 1972-09-04 1974-11-27
US3973422A (en) * 1975-02-11 1976-08-10 Lawrence Peska Associates Defroster key case
US4075458A (en) * 1976-07-08 1978-02-21 The Gillette Company Compact hair curling iron
DE2647805A1 (de) * 1976-10-22 1978-04-27 Harald Daehn Elektrischer autotuerschlossenteiser

Also Published As

Publication number Publication date
CA1128591A (en) 1982-07-27
ATA743978A (de) 1979-10-15
HK3682A (en) 1982-02-12
DE2860361D1 (en) 1981-03-12
US4303825A (en) 1981-12-01
NO147686B (no) 1983-02-14
EP0003494A1 (de) 1979-08-22
US4247753A (en) 1981-01-27
AT357048B (de) 1980-06-10
DK151346C (da) 1988-05-09
NO147686C (no) 1983-05-25
CH612722A5 (enrdf_load_stackoverflow) 1979-08-15
DK151346B (da) 1987-11-23
DK464078A (da) 1979-04-21
NO783502L (no) 1979-04-23

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