US3489090A - Stop arrangement for limiting the tensioning of the drive spring of a fuze clockwork-movement - Google Patents

Stop arrangement for limiting the tensioning of the drive spring of a fuze clockwork-movement Download PDF

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Publication number
US3489090A
US3489090A US689444A US3489090DA US3489090A US 3489090 A US3489090 A US 3489090A US 689444 A US689444 A US 689444A US 3489090D A US3489090D A US 3489090DA US 3489090 A US3489090 A US 3489090A
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US
United States
Prior art keywords
fuze
stop
clockwork
movement
rings
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 - Lifetime
Application number
US689444A
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English (en)
Inventor
Robert Simmen
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.)
Mefina SA
Original Assignee
Mefina SA
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 Mefina SA filed Critical Mefina SA
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Publication of US3489090A publication Critical patent/US3489090A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/02—Fuze bodies; Fuze housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor

Definitions

  • the invention relates to a stop arrangement for limiting the extent to which the drive spring of a fuze clockwork-movement can be tensioned.
  • fuzes which employ a fuzesetting reference means that moves, for example, in a helical path as the fuze setting means is adjusted.
  • a fuze-setting reference means of this kind is not constructed sufficiently robustly so that it can withstand the great forces that occur at the end of the fuze setting procedure.
  • the purpose of the invention is to furnish a robustly constructed stop arrangement which positively limits the angular displacement of the fuze setting means when the latter arrives at its maximum rotation, without damage to the stop arrangement.
  • FIG. 1 is a view in elevation, partly cut away, of a projectile fuze incorporating the stop arrangement of the invention
  • FIG. 2 is a view taken along line II-II of FIG. 1 before the fuze has been set;
  • FIG. 3 is a view taken along line IIII of FIG. 1 after the fuze has been set.
  • a projectile fuze is illustrated, the body 1 of which supports a rotary ogive 2 comprising the setting means for the fuze: in other words, the means which is rotated about the axis of the fuze to give the latter a desired setting.
  • the stop arrangement comprises three coaxial rings 3, 4 and 5, which rotate on a central member 6 of the fuze.
  • the ogive 2 incorporates a recess 7 which permits the rings to rotate freely.
  • Each ring incorporates a stop 8, or first stop member,
  • Each stop 8 is a drive member for the next lower ring.
  • the fuze body 1 carries a stop 9, or second stop member, formed by a pin with which cooperates the stop 8 of the last ring 5 of the series of three rings.
  • a third stop member 10, also a pin, is integral with the ogive 2. This stop cooperates with the stop 8 of the first ring 3 to rotate the latter during the setting of the fuze.
  • the three rings 3, 4 and 5 are located in the position shown in FIGS. 1 and 2, stop 8 of ring 5 contacting the stop 9, and stops 8 of rings 4 and 3 respectively contacting the stops 8 of rings 5 and 4.
  • the stop .10 integral with the ogive 2, contacts the stop 8 of the first ring 3.
  • the ogive 2 which is the fuze setting means, is rotated clockwise, as seen in FIG. 2.
  • the stop 10 of the ogive contacts the opposite side of the stop 8 of the ring 3, and drives the latter.
  • the ring 3 has completed approximately one revolution, and its stop contacts the stop 8 of ring 4.
  • An additional advantage of the invention is that it also limits rotation of the ogive 2 in the reverse sense, to put the fuze back in its original un-set condition, because the stops 9 and 10 prevent the ogive from being rotated farther than back to its zero position.
  • the number of rotary members or rings 3, 4 and 5 can be chosen in accordance with the number of turns necessary by the ogive 2 to obtain the maximum fuze setting.
  • the rings can be replaced by a stack of discs.
  • the stops 8 on the rotary members can be pins or a rivet integral with each of the rotary members 3, 4 and 5, the pin or rivet projecting into an arcuate slot of the adjacent rotary member.
  • a stop arrangement for limiting the tensioning of the drive spring of a fuze clockwork-movement, when the latter is being set, at the maximum setting of the fuze clockwork-movement including: a rotatable fuze setting means adapted to be angularly displaced more than 360; a series of a plurality of planar coaxial rings having a common configuration and mounted in superposed relationship for independent rotation; an independent first stop member projecting from the periphery of each of said rings, said first stop member of each of said superposed rings engaging during its rotation said first stop member of the next adjacent of said rings to be set in rotation; a fuze body; a second stop member rigid with said fuze body; a third stop member rigid with said fuze setting means and moving therewith, said third stop member, during rotation of said fuze setting means, coming into contact with said first stop member of the uppermost of said superposed coaxial rings, thereby driving the latter in rotation, whereby the first stop member thereof comes into contact with the first stop member of the next
  • each said ring is mounted free to rotate about said central fuze member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Braking Arrangements (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Toys (AREA)
  • Mechanical Control Devices (AREA)
  • Automotive Seat Belt Assembly (AREA)
US689444A 1967-06-30 1967-12-11 Stop arrangement for limiting the tensioning of the drive spring of a fuze clockwork-movement Expired - Lifetime US3489090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH934867A CH461314A (fr) 1967-06-30 1967-06-30 Fusée pour projectile comprenant un dispositif d'arrêt destiné à limiter le bandage du ressort d'entraînement d'un mécanisme de temporisation de la fusée

Publications (1)

Publication Number Publication Date
US3489090A true US3489090A (en) 1970-01-13

Family

ID=4351028

Family Applications (1)

Application Number Title Priority Date Filing Date
US689444A Expired - Lifetime US3489090A (en) 1967-06-30 1967-12-11 Stop arrangement for limiting the tensioning of the drive spring of a fuze clockwork-movement

Country Status (14)

Country Link
US (1) US3489090A (da)
AT (1) AT283964B (da)
BE (1) BE716527A (da)
BR (1) BR6800099D0 (da)
CH (1) CH461314A (da)
DE (1) DE1703613C3 (da)
DK (1) DK132969C (da)
ES (1) ES355293A1 (da)
FI (1) FI53891C (da)
FR (1) FR1571180A (da)
GB (1) GB1203833A (da)
NL (1) NL6808956A (da)
NO (1) NO123453B (da)
SE (1) SE351035B (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095529A (en) * 1977-02-17 1978-06-20 General Electric Company Setting ring stop
US8939337B2 (en) 2009-06-02 2015-01-27 Grenzebach Maschinenbau Gmbh Method and apparatus for producing an elastically deformable glass plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095529A (en) * 1977-02-17 1978-06-20 General Electric Company Setting ring stop
US8939337B2 (en) 2009-06-02 2015-01-27 Grenzebach Maschinenbau Gmbh Method and apparatus for producing an elastically deformable glass plate

Also Published As

Publication number Publication date
BR6800099D0 (pt) 1973-04-12
GB1203833A (en) 1970-09-03
DK132969C (da) 1976-08-02
FI53891C (fi) 1978-08-10
AT283964B (de) 1970-08-25
NO123453B (da) 1971-11-15
BE716527A (da) 1968-11-04
DK132969B (da) 1976-03-01
FR1571180A (da) 1969-06-13
ES355293A1 (es) 1969-11-16
FI53891B (fi) 1978-05-02
DE1703613B2 (de) 1980-01-10
DE1703613A1 (de) 1972-03-02
DE1703613C3 (de) 1980-09-04
SE351035B (da) 1972-11-13
NL6808956A (da) 1968-12-31
CH461314A (fr) 1968-08-15

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