DE953143C - Delay kit for electric igniter - Google Patents
Delay kit for electric igniterInfo
- Publication number
- DE953143C DE953143C DESCH17464A DESC017464A DE953143C DE 953143 C DE953143 C DE 953143C DE SCH17464 A DESCH17464 A DE SCH17464A DE SC017464 A DESC017464 A DE SC017464A DE 953143 C DE953143 C DE 953143C
- Authority
- DE
- Germany
- Prior art keywords
- delay set
- delay
- electric igniter
- sleeve
- injection
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/11—Initiators therefor characterised by the material used, e.g. for initiator case or electric leads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/16—Pyrotechnic delay initiators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Elimination Of Static Electricity (AREA)
- Finger-Pressure Massage (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Die Erfindung bezieht sich auf einVerzögerungssatzstück
nach Patent 947 142 für elektrische Zünder,' bai dem der Verzögerungssatz in der durchgehenden
Bohrung einer Hülse untergebracht ist. Für dieses zwischen der Zündpille und der Brenn-,
ladung einzusetzende Verzögerungssatzstück wird e'ine. dickwandige Metallhülse verwendet, deren
Stirnflächen gegen die Bohrung hin z. B. durch konische Abschrägung verjüngt sind.
Bisher wurden die Hülsen durch Abdrehen aus Messingrohren und nachträgliches Kalibrieren hergestellt.
Dieses Verfahren hat sich aber für die Massenfertigung als zu umständlich und teuer erwiesen,
und zwar um so mehr, als die Außenform der Hülsen ein Fassondrehen erforderlich machte.
Dieser infolge der bisherigen Herstellungsweise aufgetretene Nachteil wird bei dem den Gegenstand
der Erfindung bildenden Verzögerungssatzstück vermieden, welches eine aus einem Spritzao
gußteil hergestellte Metallhülse besitzt.The invention relates to a delay set according to patent 947 142 for electric detonators, in which the delay set is accommodated in the through bore of a sleeve. For this delay sentence to be inserted between the squib and the combustion charge, e'ein. thick-walled metal sleeve used whose end faces against the bore z. B. are tapered by a conical bevel.
So far, the sleeves were made by turning off brass tubing and subsequent calibration. However, this process has proven to be too cumbersome and expensive for mass production, all the more so since the outer shape of the sleeves made it necessary to turn the shape. This disadvantage, which has arisen as a result of the previous production method, is avoided in the case of the delay set piece forming the subject of the invention, which has a metal sleeve made from an injection-molded part.
In der Zeichnung sind in den Fig. 1 und 2 zwei verschiedene Ausführungsformen des Verzögerungssatzstückes in Längsschnitten dargestellt.In the drawing, FIGS. 1 and 2 show two different embodiments of the delay set piece shown in longitudinal sections.
In beiden Fällen hat die Hülse 1 bzw. 2 die Form eines dickwandigen Hohlzylinders. Bei der Ausführungsform entsprechend Fig. 1 weist die Hülse 1 eine ebene Stirnfläche 3 und eine konisch zugespitzte Stirnfläche 4 auf. Hiervon unterscheidet sich, die Ausführungsform nach Fig. 2 dadurch, daß beide Stirnflächen 5 kegelstumpfartig abgeschrägt sind. Durch Herstellung der Hülse als Spritzgußteil vereinfacht sich das Fertigungsverfahren bis auf einen einzigen Arbeitsgang, wobei die erzielbare hohe Genauigkeit ein nachträgliches Kalibrieren überflüssig macht. Besonders wirtschaftlich erweist sich die Verwendung einer Zinkspritzgußlegierung. In both cases, the sleeve 1 or 2 has the shape of a thick-walled hollow cylinder. In the embodiment According to FIG. 1, the sleeve 1 has a flat end face 3 and a conically pointed one Face 4 on. The embodiment of FIG. 2 differs from this in that both end faces 5 are bevelled like a truncated cone. By manufacturing the sleeve as an injection molded part the manufacturing process is simplified down to a single operation, with the achievable high accuracy makes subsequent calibration superfluous. Particularly economical The use of a zinc injection-molded alloy proves to be used.
Die Herstellung der Hülsen.aus Spritzguß ergibt die günstigste Voraussetzung für eine billige Massen fertigung bei beliebiger Form der Hülsenenden. The production of Hülsen.aus injection molding results in the most favorable conditions for a cheap one Mass production with any shape of the sleeve ends.
Claims (2)
. i. Delay set piece for electrical detonators according to patent 947 142, in which the delay set is introduced into a metal sleeve, characterized in that the metal sleeve is manufactured as an injection-molded part in the correct shape.
.
Dubbel, Taschenbuch f. d. Maschinenbau, 1939, S. 465. Considered publications:
Dubbel, Taschenbuch fd Maschinenbau, 1939, p. 465.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT767896X | 1954-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE953143C true DE953143C (en) | 1956-11-29 |
Family
ID=3680638
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH17446A Expired DE947142C (en) | 1954-04-13 | 1955-03-08 | Delay kit for electric igniter |
| DESCH17464A Expired DE953143C (en) | 1954-04-13 | 1955-03-10 | Delay kit for electric igniter |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH17446A Expired DE947142C (en) | 1954-04-13 | 1955-03-08 | Delay kit for electric igniter |
Country Status (4)
| Country | Link |
|---|---|
| BE (2) | BE536503A (en) |
| DE (2) | DE947142C (en) |
| FR (2) | FR1120401A (en) |
| GB (1) | GB767896A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4938137A (en) * | 1989-06-05 | 1990-07-03 | Guay Roland H | Exploding bridgewire driven multiple flyer detonator |
| DE10119769C1 (en) * | 2001-04-23 | 2002-10-17 | Trw Airbag Sys Gmbh & Co Kg | Production of igniter, used for gas generator, involves inserting pyrotechnical into casing via open end, such that one edge protrudes against ignition kit, reducing protruding part, and closing open end |
-
0
- BE BE536612D patent/BE536612A/xx unknown
- BE BE536503D patent/BE536503A/xx unknown
-
1955
- 1955-03-08 FR FR1120401D patent/FR1120401A/en not_active Expired
- 1955-03-08 DE DESCH17446A patent/DE947142C/en not_active Expired
- 1955-03-10 GB GB7105/55A patent/GB767896A/en not_active Expired
- 1955-03-10 DE DESCH17464A patent/DE953143C/en not_active Expired
- 1955-03-14 FR FR1162526D patent/FR1162526A/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE947142C (en) | 1956-08-09 |
| FR1120401A (en) | 1956-07-05 |
| GB767896A (en) | 1957-02-06 |
| BE536503A (en) | |
| FR1162526A (en) | 1958-09-15 |
| BE536612A (en) |
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