US3254602A - Detonator mechanism - Google Patents

Detonator mechanism Download PDF

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Publication number
US3254602A
US3254602A US309652A US30965263A US3254602A US 3254602 A US3254602 A US 3254602A US 309652 A US309652 A US 309652A US 30965263 A US30965263 A US 30965263A US 3254602 A US3254602 A US 3254602A
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US
United States
Prior art keywords
housing
detonator
locking means
web
head
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
US309652A
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English (en)
Inventor
Klostermann Helmut
Beermann Paul
Schulte Richard
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.)
RICHARD RINKER Firma
Original Assignee
RICHARD RINKER Firma
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 RICHARD RINKER Firma filed Critical RICHARD RINKER Firma
Application granted granted Critical
Publication of US3254602A publication Critical patent/US3254602A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B23/00—Land mines ; Land torpedoes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C14/00—Mechanical fuzes characterised by the ammunition class or type
    • F42C14/08—Mechanical fuzes characterised by the ammunition class or type for land mines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/34—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C7/00—Fuzes actuated by application of a predetermined mechanical force, e.g. tension, torsion, pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C7/00—Fuzes actuated by application of a predetermined mechanical force, e.g. tension, torsion, pressure
    • F42C7/02—Contact fuzes, i.e. fuzes actuated by mechanical contact between a stationary ammunition, e.g. a land mine, and a moving target, e.g. a person
    • F42C7/04—Contact fuzes, i.e. fuzes actuated by mechanical contact between a stationary ammunition, e.g. a land mine, and a moving target, e.g. a person actuated by applying pressure on the ammunition head

Definitions

  • the arrangement isy generally such that in the safe condition of the detonator, the locking means are held, by means of a clock mechanism, in a position in which the locking means prevent movement of .the firing pin, while in the armed condition, it is the weight resting on the locking ⁇ means which holds the locking means in the position in which movement of the tiring pin is prevented.
  • this is accomplished by arranging the locking means centrally, or substantialy centrally, of the housing, and by arranging the clock mechanism radially with respect to the locking means, the clock mechanism being provided with a slide element which coacts with a locking projection of the lockingmeans.
  • FIGURE l is a cross-sectional view of one embodiment of a detonator mechanism according to the present invention, taken on line 1-1 of FIGURE 2.
  • FIGURE 2 is -a top plan view of the ⁇ detonator mechanism of FIGURE l, but Without the cover.
  • FIGURE 4 is a top sectional View taken on line 4 4 of FIGURE 3.
  • a releasetype detonator comprising a substantially annular housing 1 made of a plastic material and provided with an integral web extending diametrically through the housing.
  • the top and bottom of the housing are closed oit by covers 2 and 3.
  • a clock mechanism 4 Arranged within a suitalbly configured and preferably rectangular recess in the web is a clock mechanism 4, the same having a winding stem 4a passing upwardly through the cover 2, and locking slide 4b.
  • the 'clock mechanism is held in place by means of ⁇ screws 5.
  • the web of the housing is provided with a cylindrical and stepped recess which is closed off by means of a screw ring 11 and a spacer ring 12.
  • a primer charge assembly incorporating a primer charge 13 of nitropent-a or other suitable material, a percussion cap tube 14, and a primer holder 15 carrying the primer 16.
  • Aligned with the primer 16 is an axially displacearble ring pin 17 having a head 17a, the ring pin being continou-sly biased toward the primer 16 by la tiring pin spring 18.
  • the percussion cap tube 14 Arranged within the percussion cap tube 14 is the percussion cap 19. In order that same may be inserted Iafter the rest of the device i-s assembled, the screw ring 11 is adapted to receive a closure screw 20 which is screwed tightly into ring 11.
  • the detonator mechanism further comprises sealing discs 21 and 22 and sealing rings 23 and 24.
  • the winding stem 4a of the clock mechanism carries a wind-up handle 25 which is pivotally connected to the stem 4a and may thus ⁇ occupy the position shown in FIGURE 1, or it may be folded down, the :arrangement being, in practice, such that when the handle 25 is folded down, it is received in a depression formed in the cover 2 so as to lie flush with the rest of the cover.
  • the detonator mechanism includes the explosive charges 26 and 27 which may be briquetted to have the desired configuration which will enable them to fit into the two compartments into which the interior of the housing 1 is divided by the web.
  • the device operates :as follows:
  • the clock mechanism 4 is wound up by means of the handle 25, whereupon the clock mechanism starts to run down.
  • a weight is placed upon the mine; this Weight will, in practice, be at least 1 kilogram land maximally about kilograms.
  • the weight presses down on the plate 9 which acts through the membrane 8 on the head 7c of the pivotally mounted lever 7.
  • the locking projection 7b thereby frees the locking .Slide 4b of the clock mechanism so that when the clock mechanism has run down, the locking ⁇ slide 4b ⁇ springs back into the clock mechanism.
  • FIGURES 3 and 4 differ from the above described embodiment of FIGURES 1 and 2 in that the lever 7 and membrane 8 are replaced by a sliding head 30 made of plastic material and biased upwardly, as viewed in FIGURE 3, by a spring 31.
  • the head 30 is axially displaceable within limits.
  • the head 30 is provided with an integral locking projection 30b which coacts with the tiring pin 17, and with a locking projection 36a cooperating with the slide element of the clock mechanism.
  • the upper free end of the head 30 has a spherical configuration.
  • the head is sealed by means of a lip-type seal.
  • a detonator according to the present invention offers a number of advantageous characteristic features.
  • the head of the locking frame i.e., the lever 7 or the head member 30, are so configured as t-o be engaged, centrally or substantially centrally, within a limited area which may even be point-shaped.
  • This limited area can be engaged directly, as is the case with the spherical head member 30, or it may be engaged by the pressure plate 9.
  • the latter may itself have a curved conguration.
  • the element which actually blocks the forward movement of the firing pin i.e., the blocking element constituted by parts 7a and 36h, respectively, is diametrically opposite the clock mechanism.
  • the diametral web will be seen to divide the housing into two compartments which accommodate the main charges.
  • the web itself can be considered as having upper and lower layers; the upper layer supports the locking means of which at least a portion is located centrally, as well as the clock mechanism.
  • the lower layer supports the primer charge assembly, located immediately below the clock mechanism, as well as the tiring pin.
  • the web is provided with a ring-shaped portion which allows the head 7c of lever 7, or the head member 30, to move up and down, i.e., axially with respect to the housing.
  • the arrangement according to the present invention provides a generally rectangular recess in the web for receiving the clock mechanism, as well as the vertical and diametral recess for receiving the locking means. Moreover, the web arrangement makes it possible to provide the very conveniently congured stepped cylindrical recess for accommodating the primer charge assembly.
  • the housing can be made very simply by conventional manufacturing processes. This is also the case if the web is made integral with the housing. Furthermore, the lower cover can be made integral with the housing.
  • the upper cover will be provided with suitable recesses for accommodating the winding stem of the clock mechanism, as well as for making possible the transmission of motion to the locking means.
  • the locking lever 7 does not itself project through the cover, but motion can nevertheless be imparted to the lever head 7c via the membrane 8, while in the embodiment of FIGURES 3 and 4, the locking head itself projects through the cover.
  • the blocking element 30h is arranged within a recess of the web and serves to prevent rotation of the head member 39.
  • the present invention provides a detonator which incorporates relatively few parts, each of which can easily be mass-produced at low cost, and which can be assembled in a very simple manner.
  • the arrangement makes it possible -to insert the primer assembly last.
  • the detonator is very rugged, is well sealed against outside influences, and is fully operable even at extreme temperatures.
  • the over-all height of the device is very small.
  • the detonator operates very reliably, and can even be used in an inclined position.
  • a very marked advantage of the present invention is that the device operates even when the weight on the locking means is as low as one kilogram, because all that the force acting on the detonator is called upon to do is to counteract the effect of relatively weak spring means, whose low spring forces will effect a secure safety despite the presence of but a small force on the locking means.
  • the detonator according to the present invention can be used as a weight-responsive Contact or tread mine which, in contradistinction to other mines of this type, will explode only after the weight thereon has been removed.
  • a detonator mechanism comprising, in combination:
  • weight-responsive locking means having a blocking element, said locking means being carried by said housing for movement between a depressed position in which said blocking element engages said ring pin to prevent movement of the latter from its rest position to its firing position, and a released position in which said blocking element is out of the path of movement of said firing pin, said locking means being arranged centrally of said housing;
  • a clock mechanism arranged radially with respect to said locking means and having a radially movable slide element which is movable between an engaged position wherein said slide element engages said locking means to hold the same in its depressed position, thereby to prevent movement thereof to its released position, and a disengaged position wherein said slide element is free of said locking means, thereby to allow the same to move to its released position, said slide element beingin its engaged position prior to running off of said clock mechanism and in its disengaged position after said clock mechanism has run olf, in consequence of which said locking means will, upon the removal of a weiUht depressing the same, free said ring pin for movement toward its firing position.
  • a detonator mechanism as detined in claim 1 wherein said housing is provided With a generally diametrically arranged web which divides said housing into two compartments, said web supporting said locking means, said mechanism and said tiring pin; said explosive charge means including explosive charges arranged in said compartments as well as a primer charge assembly which is also supported by said web and is arranged below said clock mechanism.
  • a detonator mechanism asd etined in claim 4 wherein said housing is provided with a top cover which is provided with a recess which is in alignment with said head of said lever, said recess being closed off by a membrane, and said membrane carrying an actuating plate so that pressure on said actuating plate is transmitted to said head of said lever via said membrane.
  • a detonator mechanism as defined in claim 3 wherein -said locking means comprise a head member mounted for limited up and down movement and a spring continuously urging said head member to its up position, the latter constituting said released position of said locking means, said head member, interengaging with said slide element of said clock mechanism, and said blocking element of said head member being integral with the rest of said member and extending in the direction of the up and down movement.
  • a detonator mechanism as defined in claim 1 wherein said housing is provided with a generally diametrically yarranged web, said web having an upper layer and a lower layer, said locking means being arranged so that at least a portion thereof is positioned in the region of the center of said web in said upper layer thereof for up and down movement and said clock mechanism being arranged radially of said portion of said locking means and also in said upper layer of said web; said explosive charge means including a primer charge assembly supported by said lower layer of said web and located below said clock mechanism and said firing pin being 1ocated to move in the remainder of said lower layer of said web; said blocking element of said locking means extending down into said lower layer of said web when said locking means is in its depressed position.
  • a detonator mechanism ias defined in claim 12 wherein said primer charge assembly is located within a cylindrical, stepped recess of said web arranged below said clock mechanism.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Elimination Of Static Electricity (AREA)
US309652A 1962-09-22 1963-09-18 Detonator mechanism Expired - Lifetime US3254602A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER33548A DE1187159B (de) 1962-09-22 1962-09-22 Entlastungszuender

Publications (1)

Publication Number Publication Date
US3254602A true US3254602A (en) 1966-06-07

Family

ID=7404104

Family Applications (1)

Application Number Title Priority Date Filing Date
US309652A Expired - Lifetime US3254602A (en) 1962-09-22 1963-09-18 Detonator mechanism

Country Status (8)

Country Link
US (1) US3254602A (d)
BE (1) BE626382A (d)
CH (1) CH373283A (d)
DE (1) DE1187159B (d)
DK (2) DK112153B (d)
GB (1) GB982049A (d)
NL (2) NL291630A (d)
SE (1) SE215149C1 (d)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485172A (en) * 1968-01-05 1969-12-23 Us Army Mechanical timer
US3759181A (en) * 1972-01-21 1973-09-18 Us Army Anti-disturbance fuze
US3786750A (en) * 1973-01-03 1974-01-22 Us Army Motion sensitive explosive with a delay mechanism
US5279227A (en) * 1991-12-05 1994-01-18 Takata Corporation Gas generator
US10874437B2 (en) 2005-09-30 2020-12-29 Roger P. Jackson Pivotal bone anchor assembly with snap in place insert
US11013537B2 (en) * 2005-02-22 2021-05-25 Roger P. Jackson Pivotal bone anchor assembly with bottom loaded shank and insert engaging retainer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1288797A (en) * 1917-06-15 1918-12-24 Harry E Asbury Hand-grenade.
FR864354A (fr) * 1940-03-26 1941-04-25 A & L Guillouard Mine terrestre à déclanchement par plateau circulaire
US2485949A (en) * 1945-07-18 1949-10-25 Us Sec War Delay action fuse
US2982209A (en) * 1947-06-27 1961-05-02 Charles A Borcher Demolition firing device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882360C (de) * 1953-05-21 Prb Nv Schlagbolzenzuender fuer Erdminen
DE479567C (de) * 1925-05-18 1929-07-18 Gruber Hans Landmine in Scheibenform mit radial verlaufendem Zuendgehaeuse
US2514499A (en) * 1946-03-22 1950-07-11 Us Sec War Delay action fuse
BE508953A (d) * 1951-02-08
LU34376A1 (d) 1955-05-18
BE548839A (d) 1955-07-05
FR1200516A (fr) 1958-06-27 1959-12-22 Hotchkiss Brandt Dispositif perfectionné de mise à feu indétectable pour mines
DE1092359B (de) * 1959-12-07 1960-11-03 Rinker Fa R Entlastungszuender

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1288797A (en) * 1917-06-15 1918-12-24 Harry E Asbury Hand-grenade.
FR864354A (fr) * 1940-03-26 1941-04-25 A & L Guillouard Mine terrestre à déclanchement par plateau circulaire
US2485949A (en) * 1945-07-18 1949-10-25 Us Sec War Delay action fuse
US2982209A (en) * 1947-06-27 1961-05-02 Charles A Borcher Demolition firing device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485172A (en) * 1968-01-05 1969-12-23 Us Army Mechanical timer
US3759181A (en) * 1972-01-21 1973-09-18 Us Army Anti-disturbance fuze
US3786750A (en) * 1973-01-03 1974-01-22 Us Army Motion sensitive explosive with a delay mechanism
US5279227A (en) * 1991-12-05 1994-01-18 Takata Corporation Gas generator
US11013537B2 (en) * 2005-02-22 2021-05-25 Roger P. Jackson Pivotal bone anchor assembly with bottom loaded shank and insert engaging retainer
US11419638B2 (en) 2005-02-22 2022-08-23 Roger P. Jackson Pivotal bone anchor assembly with cannulated shank having a planar top surface surrounding an internal drive socket
US10874437B2 (en) 2005-09-30 2020-12-29 Roger P. Jackson Pivotal bone anchor assembly with snap in place insert
US11045229B2 (en) 2005-09-30 2021-06-29 Roger P. Jackson Bone anchor receiver with outer tool engaging grooves above an internal insert constraining recess
US11134993B2 (en) 2005-09-30 2021-10-05 Roger P. Jackson Pivotal bone anchor assembly with snap-in-place insert
US11849977B2 (en) 2005-09-30 2023-12-26 Roger P. Jackson Pivotal bone anchor assembly with receiver having horizontal and vertical tool engagement grooves

Also Published As

Publication number Publication date
NL291630A (d)
SE215149C1 (sv) 1967-09-05
DK126671B (da) 1973-08-06
DK112153B (da) 1968-11-11
NL136200C (d)
DE1187159B (de) 1965-02-11
CH373283A (de) 1963-11-15
GB982049A (en) 1965-02-03
BE626382A (d)

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