JPS6136190A - Detonator assembly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an apparatus for operatively coupling a low energy detonator cord to a detonator which is actuated by a percussion in a detonator.

The present invention also provides for use in non-drowsy detonation of explosives that are not sensitive to phonographs, and for use in deck loading by a single detonation cord downline.
The present invention relates to a primθr assembly incorporating such a device specifically for use in delayed detonation of explosives.

l O- In detonation operations in which a detonator-insensitive explosive charge is detonated non-electrically at a predetermined delay time interval within the polled hole itself, a detonator-sensitive quotient energy book tube (sometimes a ``booster'') is usually used. It is necessary to use a non-electric delayed detonator and a device for connecting the detonator in operative relation to the detonator and the lower conductor of the detonator cord. In such explosive deck loading techniques, which are often used when eliminating overshooting is an important consideration, the detonator-insensitive charge is placed in a layer of inert occlusive material. are loaded into polled holes in mutually isolated decks. If this technique is used, each deck will require a detonator (e.g., a VC-connected detonator to act on the detonator). Connected to act on the siding cord.

A system in which the detonators in all decks are connected by a single lower line is preferable to a system in which an individual lower line is required for each detonator. This is because the lower line system is less complex and easier to load and connect polled holes.

U.S. Pat. No. 3,709,149 uA# discloses that a delayed detonator actuated by a percussion is placed in a recess formed in a cylindrical booster perpendicular to the longitudinal axis of the cylinder. The detonator cord extends in the longitudinal direction of the booster, i.e., in the vertical direction relative to the detonator, and connects the loop member at the J end of the detonator and the booster casing. The detonator is actuated by detonation by the percussion of a charge in response to the impact produced by detonation of the cord. One lower line cord extends through a loop member on the detonator in the multiple booster assembly.

One of the neo-zero points of the Driscoll booster fruit body is that vertically arranging the gs device requires a booster with a diameter large enough to accommodate the full length of commonly used delayed detonators. It is to be.

U.S. Patent Nos. 4,060,055 and 4.060.
In the late-onset booster derivative described in No. 034, Tani #I Bud, a non-electric late-onset 9A device is placed in a recess in a blind tube parallel to the longitudinal axis of the cylindrical booster. Multiple boosters are threaded through the detonator cord tunnel and slide over a common 5-6 f/m lower line detonator cord attached to the side of the booster or enclosed inside the booster case. The detonation cord tunnel is surrounded by a buffer member. In addition to the lower wire cord, this system uses a $2 cord, e.g., one low-energy detonator cord, with each booster acting as a signal carrier to signal from the impact 91A sensitive sensor to the delayed charge in the detonator. It is necessary to use (LFliDO). L
The f# percussion sensor attached to one end of the JICDO is a metal cartridge containing an explosive whose lower end is adjacent to the lower wire cord. The other end of the LIO is crimped to the open end of the detonator case. This detonator is therefore not a self-contained separate unit suitable for field assembly, but
Together with the A-sensitive sensor and the signal carrier cord, it must be loaded and handled in a delayed-onset insert assembly, such as in an L-shaped plug that seals the detonator cartridge.

The delayed detonator in a 9 m unit with S device (small charge) and passive radiator (flexible L-shaped hollow tube) must be widely isolated from the lower line cord, and this passive radiator must be We are doing this isolation. The detonator is located near the edge of the booster diametrically opposite the lower wire cord conduit outside the booster container.

"Au5tin De" published by Austin Powder Company located in Leeland City, Ohio, USA.
In the late-fire booster development shown in Austin Technical Bulletin No. 1183 entitled ``Lay Boosters'', the booster container has an outer lower line channel and an essentially axial late-fire channel.

An elongated delay element in the form of a delayed detonator with the end of a pigtail cord crimped into the cartridge case is used. The detonator is seated in the delay channel and the pigtail cord is inserted into the 111111 wire channel. This undergarment is threaded through the underwire channel and adjacent to its internal pigtail cord thereby relaying the detonation impulse from the side output of the underwire to the detonator.

SUMMARY OF THE INVENTION The present invention provides a detonator assembly adapted to be threaded onto a low energy detonating cord (1, KDO) comprising: (a) a paper roll, with or without a terminal cap;
A substantially cylindrical detonator, e.g., a cast explosive, optionally having a cardboard or similar packaging material or held in a plastic snack container, the detonator having: (1) its longitudinal length; a packaging member or container having a detonator-receiving recess substantially parallel to the directional axis and (e.g., having a cord-receiving hole therethrough or having an outer cord-receiving tubular conduit or multiple aligned outer conduits or ferrules; an LED on an axis substantially semi-parallel to the recess at a position spaced from the recess;
(b) an igniter seated within the detonator storage recess and responsive to a single shot at the actuating end; (c) a detonator having a drug;
comprising a shock-sensitive detonator coupling charge, for example a detonator coupler with a plastic coupling block that accommodates the powder of horse mackerel in a linear elongated row in a hole;
The explosive coupler is positioned proximate to the charge such that the explosive in the hole (1) detonates an ignition charge perpendicular to the detonator and responsive to the firing of the detonator; A device for passing said LEDO, such as a cord storage hole, i.e. a button placed perpendicular to the opening of the conduit and sufficiently close to said hole so that it can be detonated by detonation of the LEDO passed through said hole. The distance between the charges in the detonator assembly with the cord threaded through the detonator and the inert material between the charges and the energy output and sensitivity of the charges are such that the detonating impulse from the detonating cord passes through the detonator coupler. The present invention provides a detonator assembly whose value is such that, as a result of being transmitted to a detonator, a pre-hpi explosive detonator is detonated by said detonator.

Preferably, the assembly on the plastic coupling block includes a detonator for placing the detonator in the requisite proximity to an explosive coupler which is fitted with a firing charge sensitive to its firing in the shell of the detonator storage recess. Apparatus is provided for holding the LJijDO in the required position and directing the LJijDO passed through the detonator through-hole in the required proximity to the attached explosive coupler.

A preferred detonator assembly of the present invention is an explosive coupler also provided in accordance with the present invention for operably connecting a low energy detonation cord (LEDC) to a percussion reverse actuating detonator, comprising: (a) A plastic connecting block is provided in which a cassilling charge of a detonator sensitive to an f# strike, such as lead azide powder, is housed in an elongated array in the shell of an internal hole, and the hole is (1) (2) a housing for a Cassilling charge; or (2) a lock adapted to position the housing cartridge in the desired position. (b) the cassilling charge is perpendicular to the detonator d and detonates the refractory charge responsive to the detonator's discharge; an explosive having a detonator engagement device on a ginsnack coupling block adapted to engage a detonator having a single-shot sensitive detonator charge at the working end in a manner held in close proximity to the drug; It stores the coupler.

In a further preferred coupler, the connecting block is bloodless relative to the longitudinal axis of the hole and the cord receiving hole is on a longitudinal axis that is parallel to the detonator with which the connecting block engages. and the hole U of the connecting block (a> arranged so as to be coaxial with the code through hole of the detonator to which the turnip 2- is attached, and fb) the above-mentioned adjacent to a closure or locking device of the hole in the connecting block such that the IJeDO threaded through the hole is directed to be passed sufficiently close to the Cassilling charge in the hole to detonate the charge; .

A preferred coupling block also provided by the invention for use in the explosive coupler of the invention is a substantially L-shaped plastic member having vertical first and second arms of substantially tubular configuration. , the first arm having an open passage adapted to pass the LEDC, and the second arm containing a Cassilling charge preferably held in a closed cartridge case and having a linear , and the Cassilling charge is LfiiD
It has a hole adapted to be held as 14-1& in the passageway of the first arm adapted to pass through. The 27th arm of the connecting block engages the detonator which is activated by the percussion, thereby causing the detonator to be substantially perpendicular to the hole in the second arm and relative to the first arm. (b) an initiating proximity to the cassilling charge arranged in a linear elongated manner within a hole therein, the igniting charge being responsive to the firing of the detonator; It is designed to be held tightly.

The term "proximity to detonation," as used herein to describe the relative positioning of the coupling detonator and the percussion-sensitive igniting charge in the detonator, refers to It shows the proximity of the detonator, which relies on the detonation of the Cassilling charge in it, to be reverse activated by the percussion.

The accompanying drawings illustrate specific embodiments of the detonator assemblies, blind tubes, explosive couplers, coupler/initiator assemblies of the present invention.

#f-Detailed Description The 'pipe product' of the present invention comprises (1) a detonator, namely, a detonator;
a substantially cylindrical explosive conglomerate, usually a cast explosive, lightly wrapped in paper or cardboard and optionally capped at the end or held in the shell of a plastic container; 2) a detonator seated inside the convex portion of the detonator; and (6) to connect for detonation to the TJiD O, which is intended to pass the detonator into a conduit outside the detonator hole reed or blind tube. and an explosive coupler with a connecting block that accommodates an explosive. A preferred pipe fruit body is shown in FIG. The connecting blocks of the assembly of FIG. 1 are shown as separate blocks in FIGS. 2 and 3. The N.g flame starter storage recess and cord storage hole can be lined with paper.

In the adult m-tubular nest shown in Fig. 1, the code 1 typically represents the type of c-tube commonly used for flattened energetic whistle sounds.
Type E explosives 1at, e.g., U.S. Pat. No. 4,343,
A substantially cylindrical detonator cap formed from the detonator explosive described in the '663 patent. The detonator 1 has a light surrounding wrapping member 2), for example a cardboard tube. Explosive charge 1a is cast into this cardboard box. The detonator 1 has an opening or hole 3 extending parallel to or coincident with the longitudinal axis of its cylindrical body. Detonator 1 has hole 6
Because of this, the device is equipped with a hole through which the LED can pass. The blind tube 1 also has two recesses, namely a recess 4 which houses a superacid device closed at one end, isolated from the hole 6 and extending parallel to the hole 6, and adjacent to the hole 3 and the recess 4. The formed recess 5 is encouraged. The recess 5, together with the hole 6, has one LlliD passed through the hole 6.
The connecting block 7 is shaped so as to accommodate the connecting block 7 in a four-piece turnip for connecting the detonator O to the detonator d seated in the recess 4 so as to detonate the detonator d. Around 9 of hole 3 and adjacent to recesses 4 and 5, Pfl' sensitive to the detonator
A tubular mass 6 consisting of a rubber-like extruded mixture of N and an elastomer binder is arranged. The tubular agglomerate 6 constitutes a small booster that can be used advantageously with the detonator explosive described in the aforementioned U.S. Pat. No. 4,343,663.

The previously described connecting block, generally designated 7, is a rigid plastic member having a substantially L-shaped configuration (see FIG. 2). L having a substantially tubular shape
One arm 8 of the shape is inserted into the hole 3 of the detonator 1. (FIG. 1) The arm 8 has an open passage 9 communicating with the hole 3 so that LIItDO can be passed through the hole 3 when the arm 8 is placed in position in the hole 3. The wall of the arm 8 is longitudinally segmented to form spaced edges 37 and 38 and has three rows of suitably angled circumferential grooves 39.
a s 39b and 39c. spike 3
9a, 69b and 39c serve as a gripping device that allows the arm, i.e., the stem 8, to be inserted into the hole 6 so that the arm 8 can grip the wall surrounding the rubber-like bombardment bone 6; This prevents the connecting block 7 from being withdrawn from the detonator 1 by the forces generated when the assembled detonator is lowered into the hole. IIJ passed through hole 6
When DO detonates, Snow Guiku 39a s 39b
s 39c is driven into the wall of the explosive charge v6 and thereby prevents the ejection of the connecting block 7 from the detonator 1 as a result of detonation of the 5 L[DO or explosive coupling charge. Retention of this connecting block is important because connecting block 7 ignitably connects the LEDO to delayed detonator 19 via 9i coupling wire 12. Retention of the connecting block and the detonator can also be assisted by a segmented arm 8. The divided arm 8 faces one detonator i19 and transfers the explosive energy to the tube 6 between the divided arm 8 and the detonator 19.
This makes it possible to preferentially transmit information to that part. The other arm 10 of the coupling block 7, which is perpendicular to the arm 8 attached to the coupling block 7, forms part of an explosive coupler containing a coupling charge. When the arm 8 of the coupling block 7 is in position in the hole 3, the arm 10 and the coupling element 12 are perpendicular to the detonator receiving recess 4 and the percussion-actuated detonator 19 produced therein. Placed. The detonator 19 is engaged with the arm 10 as explained below.

The explosive coupling element 12 is constructed in one piece and is closed at one end 13a, for example made of metal and containing an impact-sensitive initiating coupling charge 14 - for example lead azide powder. It consists of 13 stored cartridges.

The 13 shell casings had integral closed ends 13a which also terminated in short lengths and whose edges were beveled to facilitate the flow of explosive powder during loading into the casings. A plastic lining tube 15 is housed therein. The open end of the cartridge case 13 is secured with a spherical plastic plug 16. Explosive powder 14 is stored in the hole of the tube 15 and (a) the space between the end of the pipe 15 and the small end 13a, and (b) the space between the other end of the pipe 15 and the plug 16. ing.

The detonating coupling charge 12, as shown in FIG.
It is seated in the hole 11 of the block arm 10. The hole 11 is partially closed off by a pair of locking devices 17 at its ends consisting of a flat and grooved area 1'e, as can be seen in FIG.

A locking device, namely a perforated chain member 17, is arranged adjacent to the passageway 9. Due to the slot 45 formed in the end wall of the connecting block 7, an opening or slot 49 is formed by the locking device 17 and the passage 9. [See explanation below] Therefore, Kazoler culvert 13
Pushed to the instep of hole 11? C and is supported facing the locking device 17, the bottom end 13a of the locking device 1
7 through an opening 49 facing the passageway 9.

To constitute the explosive coupling of the LEDO to the detonator 19, the arm 1° of the connecting block 7 is provided with a pair of opposing /+#3-ffc members 2Q and 2).

The extension member 20.2) forms, together with a portion 22 of the surface of the arm 1a, a substantially U-shaped channel 23 for slidingly engaging the detonator 19 therebetween. The extension members 2° and 2) are arranged in a plane transverse to the plane in which the longitudinal axes of both arms 8 and 10 are arranged, so that the edges of the extension members 20 and 2) are opposite each other. and are directed inward to form lips 24 and 25, respectively.

Extension members 20 and 2) on arm 10 extend beyond arm 8 to form a pair of opposed walls 40 and 41. The walls 40 and 41, together with the end face 42, form a force 2- on the rotation of the arm 8. The parts of the extension members 20 and 2) forming the walls 40 and 41 are designed wider than the remaining parts. Additional features of the connecting block 7 include slits or grooves 43 and 44 formed along its side walls and slots 45 formed in its adjacent end walls.

The detonator F19 is a detonator actuated by a blow, for example, the type of detonator described in U.S. Clock No. 4,429,632 Specification Sgt. This is written for the purpose.

That is, the detonator +t 19 is closed at one end 26a integrally constructed, and includes, in order from the end 26a, a base charge 27 made of a detonator composition and a detonator made of a heat-sensitive detonator composition. It is provided with a tubular gold PA detonator system casing 26 containing a charge 28 and a delayed charge 29 made of an exothermic combustion composition. The delayed charge 29 is pushed into the plastic capsule 30 and then the capsule 3
Inside the 0, there is a metal capsule 61 facing the delayed firing rack 29.
is seated. Capsules 60 and 61 are
Both have one open end and a closure member at the other end with an orifice therethrough, such that the closure member is seated opposite the charges 28 and 29. -C is here.

The detonator cartridge 26 is closed by an ignition assembly comprising a rifled cartridge casing with a hollow I# cartridge 62, in this case a heavy tube igniting at the rim. The detonator cartridge 32 has an open end and an integrally constructed closed end 32a. The end 32a carries on its inner circumferential surface a percussion-sensitive blind tube charge 36 for the rim. Flame-sensitive ignition charge 6 loaded in pieces in a metal capsule 31
4 is layered adjacent to the blind tube charge 36 which is sensitive to percussion when the detonator 19 is tipped over for insertion into the recess 4. The original tube cartridge 32 is the detonator cartridge 26
is held in place by circumferential pleats 35 and 36.

When the detonator 19 is to be engaged with the channel 23, the detonator with the percussion containing end 32a supported by the portion 22a of the extension member 2° and 2)
fF! in the channel 23 at the mating free end faces! The lips 24 and 25 grip the circumferential pleats 66. The detonator 19 slides along the channel 23.
] Possible, this allows the delay block recess 4 and IJ
It can be used with a detonator having a common space between the DO storage hole reed or conduit. The difference between the thickness of the lips 24 and 25 and the width of the pleats 36 allows the detonator to move abruptly in the direction of its longitudinal axis, which is caused by the coupling The detonator is released during detonation of the charge.
Even if it is advantageous to promote retention on the instep of the U.

- when the phlegm coupler 12 is seated 7d in the hole 11 and the detonator 19 is engaged in the channel 26;
The connection block 7 is now ready to be placed on the instep of the heavy pipe 1. While the detonator 19 is held at the required distance from the arm 8, the arm 8 is pushed upwards into the hole 6, and the detonator 19 then enters the recess 4. Wall parts 4o and 41
And the front edge of the collar formed from the end face 42! The connecting block 7 is extended into the recess 5l=P until it touches the end of the recess 5, and the connecting block 7 is completely disposed in the recess at the boundary of the recess 5.

Since the extensions 20 and 2) are wider in the collar part than in the part that engages the detonator 19, a small distance is accommodated between the lips 24 and 25 and the edge of the recess 5 against which the collar abuts. There is. This spacing, grooves 43 and 44 and slot 45 are provided to facilitate retention of the detonator in the detonator during detonation of the coupling charge.

When the LJiiDO is passed through the passageway 9 adjacent the hole 62 and the bottom of the explosive chambered cartridge 13, and the detonator w1q deflagrates, its detonation is captured by the four quartz 14. The series 7 exposure block 7 is hf-contained so that the detonator follower 19 remains at the necessary stop at the 19r running position in the recess 42 and is not ejected from there due to the detonation of the explosive 14.

Due to some dependence, the detonator can be released from the connecting block 7 and remain in place when the four mulberry deflagrates, and the connection between the channel 23 of the detonator and the four edges of the concave Due to the spacing between the holes, the slight mobility of the detonator in the direction half-way to the hole 6 mentioned above, and the thin and slightly deflecting nature of the ridges 24 and 25, during the detonation of Bakuraku, the connection block 7 moves out of the detonator.

Also, luckily, store block 7 has grooves 43 and 44 and slot 4 during detonation of the coupling charge.
5, thereby preventing the detonator from ejecting.

In the detonator assembly shown in FIG. 4, the detonator 1 has a plastic jacket or sheath 2. In the detonator assembly shown in FIG. The jacket 2 closes off the end of the M and forms the contour of the recess 5. The jacket 2 has two access holes in the part lining the recess 5, one hole adjacent to the hole 3 and another hole adjacent to the recess quaternary.

The recess of the jacket 2 has a protruding rib 47.

The rib 47 constitutes a part of the concave and convex rMr fitting for attaching the communication block 7 of the four-piece coupler to the flute player 1.

In this detonator assembly, the connecting block 7 is basically the block 7 of FIGS. 1, 2 and 3 without the arm 8 and without the extension members 20 and 2).
Demeru. Grooves 46 and 44 and slot 45 are
The grooves in the end face of arm 10 adjacent grooves 46 and 44 are formed in a similar manner, one of which, 54, is shown in FIG. 4. Opening 48, which is part of passageway 9 in FIG. 1, retains a block positioned within arm 10. This block houses a detonator coupling element 12, similar to the arm 10 of the block of FIG. The block 7 of FIG. 4 does not have any means for engaging the detonator, nor does it have a stem portion for attaching the block. In this assembly, the S generator 1
9 is pressed into the recess 4, and the block 7 is connected by the uneven connection made by the packing rib 47 of the jacket 2 and the edge of the block 7! It is held as close as necessary to the coupling charge 14 when fixed to the jacket 2 in the J-recess 5. By fixing the block 7 to the detonator 1 in this manner, the provision of the opening 48 in the block 7 provides a means for holding the LEDO in a positive relationship for detonation with respect to the coupling charge 14. can get.

Unless the recess 4 is longer than the detonator 19 and the detonator head 19 is not pre-engaged with the connecting block of FIG. A locking device is required to seat the detonator 19 with the end of the cartridge 62 exposed so that the device 19 can abut the block 7. For this whole line 9,
The end of the cartridge 26FD of the detonator 19 is flared outward in the circumferential direction to form seven flange 26b. Flange 26
b indicates that the device 19 is roughly inserted into the recess 4.
Canceled.

In another inventive arrangement shown in FIG. 5, the cord passage hole 6 is an open conduit in a tubular member 18 located on the outside of the stub 1. The recesses 4 and 5 are formed in a similar manner to the assembly of FIG. 1, but in this detonator the recess 5 extends all the way to the outer surface of the packaging member 2.

The connecting block 7 forms an integral unit with the tubular member 18 and the widened portions 40 and 41 of the extensions 20 and 2) abut against the opposite faces of the blind tube 1 in the recess 5. It fits into the recess 5. As in FIG. 1, the coupling element 12 is installed in the body 11 so that the coupler cartridge 16 is supported by the locking device 17, and the end of the cast wound 1j of the canal casing 16 is Part 1
3a is inserted into the opening 6 of the tubular member 18 through an opening in the locking device and an opening in the wall of the tubular member 18. The lips 24 and 25 of the extension members 20 and 2) grip the circumferential folds 36, so that the detonator 1
9. The block 7 is inserted into the recess 5 as shown, thereby placing the detonator 19 in the recess 4 and the tubular member 18 next to the wall of the blind tube. This assembly is held in place by closing circumferential straps 55. The circumferential strap 55 is suitably attached to the tubular member 18 by, for example, being molded with the U-shaped member 18 or threaded through a slot in the tubular member 18.

In FIG. 6, reference numeral 50 designates a closure cap which is placed over the end of the detonator 'U and is adapted to be held in place by a peg fit.

This closure cap is suitable for use with a cylindrical detonator (as in FIG. 1) which connects the detonator receiving recess 4 and the cord receiving hole 3.

The block storage recess 5 is unnecessary. For example, the closure cap 50 made of plastic can be connected to the connecting block 7.
together form an integral unit, and the end of the cap 50 is provided with a generally central hole 51. The hole 51 is coaxial with the opening 48 of the block 7 and coaxial with the cord receiving hole 6 of the detonator tube in which the closure cap 50 is fitted. Hole 11 is adapted to receive coupling system 12 through access opening 52 in the side wall of closure cap 50. When the coupling element 12 is placed in position in the bore 11, the coupler channel casing 16 is clamped by the locking device 17 (as in FIG. 1);
Then, the ff-shaped bottom end 13a of the conduit pod 16 is (
hole 4 through the opening of the locking device (as in Figure 1).
Face 8. The support ribs 55 allow the cover/coupler assembly to be activated 24 with the detonator 19 disposed within the recess 4.
'f cover/when in position over the end of the detonator.
Provides strength to the coupler assembly.

The connecting block shown in FIGS. 7 and 8 is essentially the connecting block shown in FIG. 4 with a device for engaging and holding the detonator in place. It is. The device engagement device 56 essentially has a central hole 57 in a closed top with a reduced thickness;
a pair of diametrical slits 58a extending from
A box-shaped attachment with ab is a member. The initiator 19 mount is pushed into the member 56 through the bendable hole 57 . The hole 57 serves to grip the flap 36 of the detonator 19. The coupler/initiator assembly is inserted into the empty recesses 4 and 5 shown in FIG. 4 and secured in place by a concave-convex connection.

The blind tube assembly of the present invention utilizes a low energy detonation cord (L[
DO) i/(It is intended to be used for attaching (igniting) the detonator to explosives that are not sensitive to the detonator due to the supplied detonation shock. The LEDO is designed to extend with other such assemblies placed at predetermined distances into the polled holes.This LEDO has a sufficiently low explosive core loading threshold, i.e., slightly Approximately 22
Because it has a loading capacity of up to There is no need for large boundaries to avoid detonation, nor is there a need for extensive separation from the detonator in the straddle cap. At the same time, the side energy output of the detonating cord is large enough to detonate the coupling charge adjacent to the detonating cord. A preferred code is described in US Pat. No. 4,232,606, the disclosure of which is incorporated herein by reference. This code consists of a crystalline explosive slender compound mixed with a binder, preferably a porcelain powder.
A solid core of deformable bonded priming composition containing ETN? have. The charge of this crystalline explosive is 1
The voltage should be at least 0.1 V per m, and the preferred amount of equipment is about 0.2 to 1 V per m. It is within the range of Of. For example, the amount of explosive core at the upper end of the WDO is 1
For sheds with a height of about 2.02 m or more, a good Jfx boundary, e.g.
A polyethylene sheath of IIL thickness must be provided around the explosive core. Suitable boundaries are also for example the hole 3 or the arm 80 of the block in the blind eye body! It can be provided as a lining tube in I9. US patent! The cords described in US Pat. No. 3,125.024 can also be used, for example, with a loading of about 0.7 to 1.02 granular PITH cores per meter. LJiiDO, in which a granular S-channel core is enclosed within a metal tube, is also available (see US Pat. No. 2,982,2)0).

The device for passing the LKDO through the blind tube assembly may be attached to a hole through the canal (as in FIGS. 1 and 4) or to the detonator (as in FIG. 5). It can be a conduit in a tubular body or a conduit in a straight pipe plastic container. It is preferred to pass the cord through a hole in the detonator itself, since there is no need for significant separation between the cord and the detonator. Most preferably, the cord receiving hole is located substantially on the longitudinal axis of the detonator. The reason for this is that with this arrangement, the balance of the detonator product is better, and it is possible to slide multiple detonators onto a common lower line of the WDO when loading into a polled hole. This is because it becomes easier.

In another assembly, which is advantageously used when the LJiiDO has a m mulberry core confined in the loading section at the upper end of the I, [10 range, outside the detonator explosive body For example, the outer conduit of a plastic tube or container or a plurality of aligned outer conduits or seven errules attached to a plastic container. This embodiment allows isolation of the cord from the detonator charge and maximum separation of the cord and the detonator to prevent fragmentation of the detonator or damage to the detonator or premature detonation.

Although the detonator receiving recess can extend completely through the detonator, it is typically a detonator hole that extends only partially. The detonator receiving recess extends substantially parallel to the longitudinal axis of the detonator and substantially parallel to the longitudinal axis of the cord receiving hole or conduit. The required spacing between the detonator storage recess and the cord passage hole or conduit depends on the side energy output of the cord, and also depends on the construction of the detonator. Larger spacing is required for higher energy M cords to prevent a given detonator from deflagrating directly by the side output of the cord by biasing its delayed charge. It becomes necessary. Preferred LEDO.

i.e. b O,5 per meter loaded into a core covered with a polyethylene sheath of 0.9 rrm thickness.
Said U.S. Pat. No. 4,252,6 with y opnTN
For the code described in Example 1Vc of Specification No. 06, the space is filled with a detonator explosive and the ignition device of the detonator, usually a type 50 with a thickness of 0.4 mm, is used.
When housed in a standard detonator cartridge of 52 aluminum alloy, it is preferred to maintain a spacing of at least 1651 mm. In the case of a typical blind tube of cast bentrite, the detonator assembly of the present invention has the aforementioned 0,! M'/m
For the cord, good performance was achieved when the cord and detonator were separated by approximately 6.2 periods. If the detonator charge, i.e., 1a of FIG. 1, is too hard to conveniently grip a connecting block as shown in FIG.
A well-lined pipe, for example, pipe 6 shown in Figure 1.
It can be used to wrap the cord hole.

The detonator used in the inventive fuse assembly is actuated by the detonation of a coupling charge (designated 14 in FIG. 1) that is oriented substantially perpendicular to the detonator. It is a detonator that is activated by explosive force. A detonator having an actuating end as described in US Pat. No. 4,429,652 and US Pat. No. 3,709,149 can be used. These detonators are closed at their working ends by a partially empty tubular metal primer cartridge. The tube cartridge carries a percussion-sensitive detonator device adjacent the inner surface of the completely closed end. This closure member is, for example, a rifle cartridge casing, which fires at the rim with a blind tube of nitrogen or fires at the center.

A low energy detonator cord and a percussively actuated detonator are coupled in operative relationship to an explosive coupler in the detonator assembly of the present invention. This M
In an Ai coupler, a coupling charge of an impact-sensitive detonator is attached to an m-tube (i.e., a detonator charge or a terminal cap or container for a detonator charge) in a substantially tubular plastic coupling block. A linear elongation is received within the hole so that the cutting face is self-layered substantially perpendicular to the detonator. The coupling device is also positioned perpendicular to the cord and captures detonation from the cord to establish a detonation energy level and applies a sufficient radial percussion force to respond to the detonation in the detonator. The device is designed to selectively detonate the charges. The hole in the connecting block is
The coupling block can be completely closed, for example by a thin plastic membrane, so that the coupling charge can be directly loaded into and retained within the closure member and the connecting block to the tube. The installation is such that the closed e member faces the LKDO which is passed through the cord passage hole of the detonator. In such cases, the block containing the explosive itself is the coupling element. However, it is preferred to use a self-contained coupling element, for example a sealed plastic or metal conduit casing containing a coupling charge. Such coupling elements are more easily adapted to manufacture in commonly available loading equipment and can be self-assembled into coupling blocks to form explosive couplers at the manufacturing site or in the field.

A coupling charge is housed within a coupler case that is completely closed at one end and sealed with a plug at the opposite end, and the coupling charge is inserted into a hole in the coupling block. In some cases, the bore may be partially closed, for example by a protruding member or similar device, for example narrowed or reduced by other means, or completely closed, for example by a thin plastic membrane, thereby reducing the number of cartridge cases. The fully closed end can be supported by the resulting locking device, which will be opposite the LED which is passed through the cord passage hole on both tongues to which the connecting block is attached. . The coupling charge in its box, bore or cartridge can be placed close enough to the LKDO to be detonated by cord detonation.

In the detonator assembly of the present invention, a detonator actuated (by percussion) is seated in a recess in the m-tube and causes a coupling charge in a coupling block to detonate an igniting charge responsive to detonation of the detonator. is held in the position necessary to place it close enough to the igniting charge to produce a This allows the coupling block to accommodate the detonator engaging device which is brought into engagement with the detonator, thereby effecting the desired positioning by interlocking the elements or surfaces of the conjoint block and the detonator. This is preferably carried out by using the explosive coupler of the present invention. One such coupler is shown in FIGS. 1, 2 and 6. In these cases, the channel members of the coupling block engage the circumferential folds of the detonator cartridge. This particular channel member allows the detonator to slide, thereby allowing the coupler to be used with detonators having different spacing between the detonator and the cord hole or conduit. However, if desired, the detonator can be engaged at a predetermined location on the connecting block, as shown in FIGS. 7 and 8. The coupler/detonator can be assembled in the factory or on site.

Another method of holding the detonator in place in the recess is to
The recess itself may be configured with a corresponding contour, or the end of the detonator cartridge may be provided with a circumferential flange, as shown in FIG. including being unable to retract excessively into the chamber thereby preventing proper contact with the coupler. If so, the mounting member can be suitably arranged on the end of the detonator to place the detonator in the recess 4 when required. These alternative methods ensure that the coupling charge is placed in the required proximity to the igniting charge that is sensitive to the detonator strike in the detonator recess when the coupler is attached to the base. That will happen.

The preferred device for attaching to the explosion-cazolar Sankan is the first
This is shown in FIGS. One preferred device is
provided by the connecting block of the present invention (shown in FIGS. 1, 2, and 3). The connecting block includes a first vertical arm configured substantially tubular and a second vertical arm.
It is a substantially L-shaped member having arms.

One arm of the L-shaped member is the part of the block that houses the coupling charge, and the other arm is the device for securing the block. The block mounting arm, i.e., the stem, has an open passageway through which the low-energy detonation cord is passed, and is formed in the shell of the blast culvert on the outside of that passageway. Preferably, it has a gripping device, for example a collar, adapted to grip the wall of the cord passage hole associated with the tube. A device that engages the detonator of the arm containing the charge positions the detonator parallel to the block-mounted arm.

Block attachment is such that when the arm is inserted into the cord passage hole, the engaged detonator is placed in position within the detonator storage recess, and the LlliDO is inserted through the open passageway of the block arm into the cord passage hole. Can pass. This linking block serves several functions. In addition to containing and protecting the coupling charge, the connecting block also provides protection when the detonator length is positioned within the detonator recess and the cord is passed through a conduit that is associated with the detonator's cord storage hole or crest hole. Coupling element t7 L
It is designed to hold both the zDc and the detonator in place.

This connecting block is constructed from thermoplastic or thermoset plastic material. In order to prevent accidental deflagration of the coupling charge by impact if the detonator assembly is inadvertently dropped from a large distance in the borehole, for example 30 m or more, the coupling charge is The plastic thickness of the block should be at least about 1.5 mm thick.

As mentioned above, for explosive couplers in which the coupling charge is housed in a special coupling element, in some cases the coupling *''A is inserted through the opening of the locking device for the coupler element. It may be preferable for the cord attachment of the inventive coupling block to communicate with a passageway in the arm, so that the coupling element is pushed into the hole until it is engaged by the locking device, and The fully closed end of the coupling gable is exposed to the cord in the passage through the opening in the locking device, thereby ensuring good capture of detonation from the cord. If, for reasons explained below, the linear elongated coupling charge does not extend the entire length of the cartridge case in the explosive housing and through the inner diameter of the case, the coupling charge is a completely closed case in which the charge captures detonation from the cord. preferably extends through the inner diameter of the cartridge at the end of the cartridge.

In preferred coupling blocks and couplers, the means for engaging the coupling arm with the detonator is such that the detonator is held in one position or is slidable parallel to the axis of the coupling arm 69 and A cup-shaped or box-shaped mounting adapted to be gripped in such a way that vertical movement is divided against the member, substantially U
It can be a shaped channel or similar element. For example, a pair of lips along the 14 edges of one channel or a box-like attachment (as shown in Figures 7 and 8) gripping the circumferential folds of the actuating end of the detonator. may use a retracted opening in the member. In some detonator assemblies, the detonator may include a device for attaching the coupler arm of the block, such as an extension sleeve on the working end with a diametrical loop or hanger. This diametrical loop can be slid around the coupler arm or around a suitably shaped finger or arm member of the coupler.

The explosive coupler comprises a shock-sensitive initiator coupling charge system in the form of a linearly elongated array of preferably self-contained coupling elements seated within a hole in the coupling arm of the coupling block. It is stored. The preferred coupling element is a sealed explosive-containing plastic or metal O cartridge, such as the metal cartridge shown in FIG. The coupling explosive is sufficiently sensitive to impact and the explosive is present in a sufficient mass such that it can be reliably detonated by the side energy output of an LED, for example, adjacent to the fully closed end of the metal cartridge of the coupling element. Must. Moreover, the coupling mount must apply sufficient percussion force radially to the detonation picture to selectively detonate the corresponding charges in the detonator.

Granular explosives, such as dextrinated lead azide and lead trinitroresorcin, are preferred as coupling devices due to their high sensitivity to impact and excellent flow properties.

Using explosive mixtures such as boron/lead/dextrinated lead azide in a 1.5/8a5/10 weight percent ratio and other mixtures as described in U.S. Pat. No. 3,306,201. is also possible.

The size of the coupling mount is such that the energy output from the explosive coupler selectively detonates the bombardment-sensitive charge in the detonator, i.e., the energy output detonates the explosive charge surrounding the detonator assembly or the detonator itself. without letting it happen, i.e.
It is preferable to make the detonator as small as possible so as to isolate it from the detonator. The safe minimum amount of coupling mounting is
The strength of the coupling S4 drug depends somewhat on its degree of tamping and purity), the neglect of the inert spacer used in the cartridge of the coupling element (e.g. lining '#15 in Figure 1). nature, the spacing between the coupling mount and the percussion-sensitive mount in the detonator and the nature of the inert material between them. For cartridges and coupling blocks with thinner wall thicknesses, smaller coupling mounts can be used.

If, as in the preferred case described above, the coupling mount is housed in a thin-walled metal cartridge case seated in the coupling arm of a plastic coupling block, the desired small size linear coupling To produce the charge, unpressed explosive powder of small diameter 1, for example smaller than 2.5+ am, is used. Therefore, if the explosive charge were to be arranged to extend over the entire millimeter of the case, 2) a case with an internal diameter as small as 5 rm would be required.

It is difficult to manufacture cartridges with such small internal diameters and to load them with explosives, especially in automated equipment. Preferably, an isolation device d is provided. However, in order to expose as large a surface of the cartridge case as possible to the side energy output of the LEDO, L[DOiC
Preferably, at the end of the cartridge which is to be assembled adjacently, the coupling charge extends across the diameter of the cartridge. A preferred isolating device has a hole diameter equal to the diameter of the selected coupling charge and is more than a completely closed shoulder of the case to provide space between the spacer 'U and the bottom of the case. The lining tube terminates in a short length (for example of l/i construction as indicated at 15 in FIG. 1) (preferably made of a thermoplastic material, for example nylon). When explosive powder is loaded into the cartridge case, explosive powder fills this space and the holes in the spacer 'U. Cutting the edge of the spacer V diagonally inward toward the hole or tapering the edge allows this to be done by loading the explosive powder into the small diameter hole. This is desirable because it makes it easier to do so. A plastic spacer tube having a wall thickness of between 0.5 mm and a length of 19 T and an outside diameter of 6.4 mm, such as the tube shown in FIG.
In the case of a 51 mm length droplet coupler cartridge, the diameter of the spacer tube hole is preferably about 1.8 to 2.8 mm, most preferably about 2.2 mm. . This results in a preferred explosive charge (lead azide) of about 0.1-0.22 F, with a charge of about 0.15 F being most preferred. In the case of a 66-mm aluminum plate, this metal spacer provides a large boundary (with a borehole diameter of approximately 3 +B and approximately 0.65 mm).
It can be loaded with r explosives. The explosive charge for a linear mount, such as that shown in Figure 1, should generally be within the range of approximately 1.2 to 2.61 meters per meter of charge length; It is preferable to set the heat to about 5.8 to 141.

the nature of the materials between the coupling 5m mulberry and the percussion rC-sensitive charge in the detonator (e.g. the wall of the coupler cartridge, the inner spacer tube (if used) and the coupler arm of the plastic connecting block); For any given set of conditions regarding thickness, if adverse field conditions are expected, e.g., if the coupling explosive charge is at the lower limit, it will cause a failure of debris insertion. If sand ingress into the gust space between the block arm and the end of the detonator, which may occur, is expected, an explosive charge that is not at or close to the specified minimum hold should be selected. would be advantageous. On the other hand, if there is a possibility of water intrusion into this space, install the nitrogen detonator in the detonator layer assembly by loading it with 1 maximum amount of explosives or close to it. The rifle cartridge casing would be punctured and the detonator would fail.

The above explanation involves a continuous linear a-long coupling charge in which the explosive charge is continuous. However, the term "linearly elongated coupling charge" as used in this specification also refers to a linear elongated array that is e.g. A charge consisting of layers of explosive separated by inert spacers with small communication channels between the layers of explosive provided by small axial dimples or gaps along the outer surface of the spacer. It also represents These channels are made narrow enough so that the conduits cannot be screened out of one of the layers of S drug. In this implementation, the layers of explosives extend across the diameter of the cartridge, and one layer of explosives (for detonation capture from the adjacent IJDO) is placed at the completely closed end of the cartridge Vc. A layer of explosive material abutting and along the longitudinal axis of the detonator is adjacent the two-shot end of the detonator. In this embodiment, the explosive loading in each explosive shell in a metal shell with an internal diameter of 0.66 m is between 0.02 and 0.
, 13 F, preferably D, 0.064.

A coupler cartridge housing a spacer lining sound by selection of the index is loaded with an explosive or an explosive/spacer/explosive shield as described above, and the cartridge is solid with a diameter slightly larger than the inside of the cartridge plastic sphere, whereby a tight fit is obtained due to slight deformation of the sphere as it is pushed into the opening 14 of the metal shell. For example, 6.9r
It has been found that a ttmF:D diameter polyethylene sphere seals a 6.5 round internal diameter aluminum cartridge against hydrostatic heads at depths in excess of 150 meters.

The total length of the linearly elongated coupling drug, and therefore the total length of the cartridge used to house the coupling drug, is LIC! VC has a sufficient value to cover the distance between the hole in the device through which it is passed (for example, cord storage hole 3 of detonator 1 in FIG. 1) and the detonator storage recess.

A seeding device responsive to a shot in a rifle cartridge casing fitted with an empty neck that is long enough for the coupling agent to extend over the entire diameter of the detonator housing recess and thus ignite in the center or rim. 1
It is preferred that the entire four-contiguous surface is adjacent to, for example, the coupling agent. However, if the energy of the coupling charge is high, it would also be acceptable for the coupling charge to extend over a portion of the diameter of the detonator receiving recess.

To ensure that reliable detonation of the coupling drug occurs, the distance between the coupling drug and the explosive core of the IDC should be as small as possible. The aforementioned U.S. Patent No. 4.232.6rJ6 Mei II 4F
Ic The distance between the LED DC coupling element and the bottom of the cartridge case should not exceed 3.2n+m. Preferably, there is a spacing of about 0.25 mm to 0.175 mm between the cord and the paper portion of the cartridge. This spacing is sufficient to allow free movement of the cord, but sufficiently small/h to prevent the accumulation of foreign matter and ensure reliability of detonation. Preferred coupler cartridges are:
A cast alloy with a bottom thickness of approximately 0.13 part m.
9- It is a luminium cartridge. Moshi U.S. Patent No. 4.232
, No. 606, the code is 1.
Aluminum cartridges with bottoms up to 0.5mm thick and bronze cartridges with bottoms up to 0.25mm thick can be used if placed within 6mm. To the extent that a locking device is required in the hole of the coupler arm of the coupling block in order to properly position the coupler element in said hole, at least a portion of the cast bottom of the cartridge case may be Preferably, the locking device is designed such that it can be directly exposed to the energy radiated from the cough cord when the cough cord deflagrates. Approximately 2. Oran
Exposures diametrically across the bottom of the case having a width of 7.6 mm or more and a length of 7.6 mm or more can be used.

The distance between the coupling charge and the outer end face of the percussion tube in the detonator is also kept to a minimum to ensure reliability. The connecting block is a moldable thermoplastic,
For example, it is preferably manufactured from high-density polyethylene or low-density polyethylene, polypropylene, nylon or polystyrene, and the thickness of the coupler arm of the block in the area between the coupling element and the detonator is approximately 3. 2. It is also preferable that the breathability is small. Polyethylene having a wall thickness M of 0.4 rrrm to 2.5 mm in the above range is most preferred. If the coupling charge is placed in a special coupler cartridge seated in the coupling block, the wall of the plastic block between this case and the detonator can be cut off. . For brass nax tubes, which are commonly used with metal coupler cartridges to keep coupling split loads at a desired low value, the coupler cartridges have a thickness of no more than about 1.0 mm. It should have 5IIW parts.

In addition to the wall of the plastic spacer tube (optional), the metal coupler cartridge case (optional) and the coupling block arm located between the coupling charge and the detonator, between the coupling block and the detonator. A small gap can be provided between the two.

This is useful if the connection of the detonator to the connection block is done in the field. For the assembly shown in FIG. 1, the detonator can be moved axially over a limited range, for example, because of the difference between the thickness of lips 24 and 25 and the width of pleats 36. . The axial displacement of this detonation position should be adjusted to obtain an air space no larger than approximately 1.6 r. During use, the free air space should be kept to a minimum, since it will fill with water, sand, surrounding explosives, etc., and this will unduly limit or intensify the energy output of the coupling element. It is.

The following example illustrates the delayed detonator structure shown in FIG. 1 and its function.

(a) Detonator 1 was a cast detonator described in Example 1 of U.S. Pat. No. 4,343,655 with the following modifications. A recess (designated 5 in FIG. 1) was positioned adjacent to the cord tunnel and cap recess as shown in FIG.

The recess 5 is shaped to receive and retain a portion of the connecting block of the present invention, as described below. Further, the booster 4 of the cast detonator (tube 6 in FIG. 1) described in U.S. Pat. No. 4,343,663 is
In the detonator assembly of the present invention, it was 10.8 cwL long and also extended to the recess 5 as shown in FIG.

(b) Four-knot blocks were made of rlK+ density polyethylene. The lengths of arms 8 and 10, excluding their overlapping parts, are 5.3 feet and 2.9 feet, respectively.
It was nL. The length of the hole 11 in the arm 10 is 2.5 a
r*, and its diameter was 0.70-. The length of the extension members 20 and 2) is 2.2 cm.

And their width is 0.52cm'll', wall part 4
The part forming 0 and 41 was formed 2.4 rra wide. The width of the surface 22 between the extension members 20 and 2)0 was 7.7 rran. The inner diameter of the arm 8, ie, the diameter of the through hole wI9 of the portion of the arm 10 adjacent to the hole 11, was determined in the order of 6.6.

(at coupling element 12 consists of a 25# length aluminum cartridge having an inner diameter of 6.5 ratr, an outer diameter of 75 wn, and a cast fully closed end), cast The thickness of the thinned end portion was 0.16 mm, and its diameter was 4.6 mm.

The plastic lined tube 15 was 19 mm long and had an outer diameter of 6.5 mm and an inner diameter of 2 mm. Both ends of the lining tube were tapered inwardly at a 15° angle. lining v15tt
x, pressed into the bottom of the cartridge case and fitted snugly into it. A quantity of 0.16 r of dextrinized horsetail is placed inside the lined cartridge, and the space between the tapered end of the lining tube and the bottom of the cartridge as well as the space between the tapered end of the lining tube and the bottom of the cartridge ( (possible) Lightly fill the holes in the lining tube.

6.9 in order to seal the cartridge and press the fillet.
Open menstrual solid polyethylene spheres were used. The ubiquitous trigger formed a lump below the sealing sphere, but this was not necessary to activate the detonator. The coupling element has a hole 11 abutting a locking device 17 therein.
The inner iC of the cartridge is seated, thereby making the end of the cartridge 16 S
It is exposed to road 9.

(d) Detonator 19 is incorporated in U.S. Pat. No. 4,429,632.
The explosion occurred with the detonator described in Example 1 of the Al.

The delay mount was of sufficient length to provide torms delay. The thickness of the coupler arm 1Q between the cartridge case 15 and the end 32a of the detonator't4 conduit case cartridge is [
The maximum air space between the end 32a and the coupler arm 10 due to the axial mobility of the detonator was 0.6 times.

When the coupling element 12 is placed in position in the hole 11 and the detonator 19 is engaged by the channel 26, the connecting block 7 is placed in the recess 5 of the blind tube 1 and the arm 8 is It engages the inner wall of the small booster 6 and the detonator 19 is placed in the recess 4. Wall part 4
0 and 41 and the end face 42 are f! of whistle sound 1! ! It abuts the wall of the J section, leaving a spacing of 1.6 B between the lips 24 and 25 and the wall of the recess. U.S. Patent No. 4.232,6
A bottle of LIliiDO as described in Example 1 of No. 06 was threaded through hole 3 and passageway 9 as shown.

The LEDO was deflagrated by a No. 6 detonator whose end collided with the exposed end of the cord.

Fifteen of the above heavy pipe assemblies were manufactured. All 15 detonators deflagrate after a suitable delay time and the coupling charge is Ll! The detonation from the iDO was captured, confined to the percussion cap in the delayed detonator, and delayed to detonate the detonator.

0.4 of pentolite with cast connecting block assembly
Similar results were obtained when inserted through a 5 kl blind tube. The detonator in this case did not have a recess to place the connecting block completely within the confines of the detonator.

In adults, these detonator nests have walls 40 and 41 and an end 42.
collided with the end of the cylindrical detonator, placing the coupler arm and the actuating end of the detonator outside the confines of the detonator. In such fuzes, an extension cover member may be applied overlappingly to form a protective enclosure for the protruding portion of the connecting block.

A cast detonator of the above assembly is disclosed in U.S. Pat.
No. 5,665, the disclosure of which is incorporated herein for reference. Briefly, *tubes were poured into cardboard tubes seated on pre-shaped base plates. Two metal bottles were mounted on this base plate [to form the hole 3 and the recesses 4 and 5]. A tubular booster 6 was placed on the axial bin. In another embodiment, the "1-shaped booster 6" includes a whistle-sensitive explosive, such as PETN coupled to an axial bottle or an offset pin or otherwise tacked on and its rotating material. It can be replaced with a charge formed in a small package of torpedo explosives cast into a

[Brief explanation of the drawing]

1 is a cross-sectional view of the preferred detonator assembly of the present invention threaded through a single low-energy detonating cord; FIG. 2 is a side view of the wall of the connecting block shown in FIG. 1; The figure is an end view of the connecting block shown in Figure 2, and Figure 4 shows the connecting block, a device for attaching the connecting block to the detonator, and a device for locating the connecting block to the detonator.
FIG. 5 is a partially exploded view showing a cross-section of a portion of the delayed-acting detonator assembly of the present invention, which differs from that of the assembly shown in FIG. FIG. 6 is a partial cross-sectional view of a portion of the detonator assembly of the present invention, which is a tubular member mounted on the outside of the detonator body forming an integral unit with the connecting block; FIG. FIG. 7 is a partial cross-sectional view of the inventive explosive coupler forming an integral unit with the terminal cap for the inventive coupler/initiator adapted to be seated in the detonator shown in FIG. A side view of the device assembly, and FIG. 8 is an lfr view of FIG. 7 taken along the 8--8 edge. 1...Explosive ■Blue% 1a...Casted explosive, 2
... jacket, 3 ... cord passage hole, 4 ... detonator storage recess, 5 ... recess, 6 ... tubular agglomerate,
7... Connection block, 8... Arm, 9... Passage, 10... Arm, 11... Hole, 12... Explosive coupling element, 16... Cartridge, 14... Coupling charge, 15... Lining blue, 16... Plug, 17... Locking device, 19... Detonator, 20.2
)...Extension member, 23...Channel, 24.25
... Lip, 26 ... Detonator cartridge, 27 ... Base beam, 28 ... Detonator charge, 29 ... Delayed charge,
62... Streetcar cartridge, 63... Detonator charge, 34-fi
Fire charge 36-... pleats, 39a, 39b, 39c ・
...Spike, 40.41...Wall, 43.44...
・Groove, 45...Slot, 46...Detonation code, 4
7... Rib, 50... Closing cap, 52... Access opening, 56... Rib, 56... Detonator engagement device, 57... Hole, 58a, 58b... slit. Patent Applicant: E.I. Dupont de Nemours & Company 8l-FIG, 1 FIG.3 FIG, 2 FIG.

Claims (1)

Claims: 1) A detonator assembly adapted to be threaded through a low energy detonation cord (LEDC), comprising: (a) (1) a detonator storage recess substantially parallel to a longitudinal axis; Has and (2
) a substantially cylindrical explosive detonator constituting or associated with a device having a hole through which the detonating cord passes at a location spaced from the recess and on an axis substantially parallel to the recess; (b) a detonator seated within the detonator storage recess and having a percussion-sensitive igniting charge at its working end; and (c) a shock-sensitive detonator coupling device seated within the bore. an explosive coupler with a plastic connecting block housed therein in a linear elongated row, the explosive coupler having a structure in which the explosive in the hole is (1) perpendicular to the detonator and directed to the firing of the detonator; (2) perpendicular to and capable of being detonated by detonation of the LEDC passed through the hole in the device through which the LEDC passes; the distance between the explosives in a detonator assembly mounted and corded to the detonator in such a manner that the detonator is located sufficiently close to the aperture and the inert material between the detonators and the energy output and sensitivity of the detonators; A detonator assembly characterized in that the detonator has a value such that the detonator is detonated by the detonator as a result of the detonation shock from the LEDO being transmitted to the detonator via the explosive. 2) A detonator assembly according to claim 1, characterized in that the detonator has a cord receiving hole located substantially on the longitudinal axis of the detonator. . 3) The detonator assembly according to claim 2, wherein the detonator has a block-shaped recess for accommodating the connecting block adjacent to the cord accommodating hole and the detonator accommodating recess. A detonator assembly characterized by the presence of a detonator. 4) A detonator assembly according to claim 3, wherein the block-shaped recess is formed in the detonator charge and an outer plastic jacket, the outer plastic jacket partially or completely enclosing the detonator charge. , the plastic jacket in the block-shaped recess has a hole allowing access to the cord storage hole and the detonator storage recess, and the connecting block is fitted into the recess of the plastic jacket. A detonator assembly characterized by the presence of a detonator. 5) A detonator assembly as claimed in claim 1, in which the coupling block places the coupling charge in close proximity to the ignition charge responsive to the firing of the detonator to detonate the ignition charge. A detonator assembly comprising a detonator engagement device adapted to retainably engage said detonator. 6) an explosive coupler for connecting a low energy detonator cord (LEDC) into operative relationship with a percussion actuated detonator, comprising: (a) a shock-sensitive detonator coupling charge in a hole; a linear elongated row of plastic coupling blocks, the holes being (1) completely straddled by a thin closure membrane adapted to hold the linear elongated coupling charge; or (2) at least partially closed by a locking device adapted to position the housing cartridge for said coupling charge in a desired position, and further, (b) said coupling charge a pyrotechnic charge arranged perpendicular to the detonator and responsive to a single shot of the detonator in such a manner that it is held close to the pyrotechnic charge so as to detonate the pyrotechnic charge; An explosive coupler comprising a detonator engaging device on said block adapted to engage a detonator having a detonator. 7) An explosive coupler according to claim 6, wherein said block is perpendicular to the longitudinal axis of said explosive receiving hole and parallel to the detonator adapted to engage said block. (a) the block has a cord storage hole arranged on a longitudinal axis;
(b) coaxial with the cord passage hole of the substantially cylindrical explosive detonator to which said coupler is adapted to be attached;
a closure member of said hole, i.e., adjacent to a locking device and oriented such that an LED threaded through said cord passage hole extends sufficiently close to said coupling charge to detonate said coupling charge; An explosive coupler characterized by: 8) An explosive coupler according to claim 7, in which the coupling charge is a self-contained metal cartridge having a metal cartridge completely closed at one end and plugged at the opposite end. housed in a self-contained coupling element, the fully closed end of the cartridge being supported by a locking device in a hole in the connecting block adjacent to the cord receiving hole; Explosive detonator. 9) In the explosive coupler according to claim 7, the connecting block is fitted with a rib formed on the surface of a block-shaped recess of the detonator that accommodates the connecting block. An explosive coupler characterized by having a rounded peripheral groove. 10) The explosive coupler according to claim 7, wherein the detonator engaging device is a flexible mounting member that accommodates and holds the detonator in a predetermined position relative to the cord passage hole. An explosive coupler characterized by: 11) The explosive coupler according to claim 7, wherein the impact-sensitive initiator is lead azide powder. 12) An assembly for producing a delayed detonation of an explosive detonator by means of a low-energy detonating cord, comprising an explosive coupler according to claim 6 and engaging the block and firing at the working end. a delayed detonator having a pyrotechnic charge responsive to the detonator, the coupling device being perpendicular to the detonator and configured to detonate the pyrotechnic charge responsive to the firing of the detonator. An assembly for producing a delayed detonation of an explosive detonator, characterized in that it is held nearby. 16) An explosive detonator comprising a substantially cylindrical explosive mass, the explosive mass having: (a) a cord-receiving hole and a detonator-receiving recess substantially parallel to its longitudinal axis; the cord storage hole and the detonator storage recess are spaced apart from each other, and the cord storage hole extends from one end of the cylindrical mass to the other end;
b) An explosive detonator characterized by having a block-shaped recess for storing a connecting block adjacent to the code storage hole and the detonator storage recess. 14) Explosive detonator according to claim 13, comprising an outer plastic jacket with a hole in a block-shaped recess to allow access to the cord storage hole and the detonator storage recess. Explosive detonator, characterized in that the recess of the jacket is provided with a device for mounting an explosive coupler connection block. 15) Explosive detonator according to claim 14, characterized in that the block attachment device is a linear rib. 16) A detonator assembly as claimed in claim 1 in each deck of a poled hole shell loaded with detonators insensitive to the detonators of a plurality of separate decks, wherein all detonator assemblies are A detonator assembly characterized in that it is threaded on a common lower wire of a low-energy detonator cord.