CA1106551A - Self-closing propellant charge package - Google Patents
Self-closing propellant charge packageInfo
- Publication number
- CA1106551A CA1106551A CA317,505A CA317505A CA1106551A CA 1106551 A CA1106551 A CA 1106551A CA 317505 A CA317505 A CA 317505A CA 1106551 A CA1106551 A CA 1106551A
- Authority
- CA
- Canada
- Prior art keywords
- charges
- package
- deformed
- passage
- biasing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
ABSTRACT OF THE INVENTION
The present invention relates to a self-closing propellant charge package adapted for use with a gravity operated loading device of a power-actuated tool. The package comprises a tubular body having one end at least partially closed, the other end being open. A portion of the body adjacent the open end is deformed for holding the charges, it being possible to cancel the deformation of this portion to allow passage for the charges.
More specifically, at least one cut-out is provided in the deform-able portion, the portion being maintained in a deformed state by a resilient ring or other means.
The present invention relates to a self-closing propellant charge package adapted for use with a gravity operated loading device of a power-actuated tool. The package comprises a tubular body having one end at least partially closed, the other end being open. A portion of the body adjacent the open end is deformed for holding the charges, it being possible to cancel the deformation of this portion to allow passage for the charges.
More specifically, at least one cut-out is provided in the deform-able portion, the portion being maintained in a deformed state by a resilient ring or other means.
Description
6SS~
The present invention relates to a self-closing propellant charge package adapted fox use with a gravity operated loading device of a power-actuated tool.
In order to assume the double unction of packaging and loading, such a device must retain the charges when it is not mounted on the tool, and let them come out ~hen it is mounted.
Packages assuming these functions are already known. Some of them have an open and plastlcally defonmed end in order to hold their cont~nt, the deformation o~ this end being cancelled for providing passage for the contents. Others have an end which is provided with a substantially semi-circular part, turned oYer towards the other end, for retaining the charges by their edge, and upon which is carried a slidable sleeve which may be positioned to prevent the charges escaping from the packa~e.
The ~irst mentioned type of packages are generally in the form of male members adapted for penetxating into a reception recess of a loading device of the tool. This arrangement displays certain disadvantages. -After repeated use of this type of package involving repeated reformation of the deformed male member, thP
plastic deformation o the end gradually disappears, whereupon the propellant charges are no longer sufficiently held for allow-ing their handling in safety.
As regards the second type o~ package, it is particularly complîcated to manuacture as the sliding sleeve requires costly manufacturing tolerances.
; It is an object of the present invention, thereore, to ob-~iate the various disadvantages of the known packages. This is accomplished, generally, by a tubular propellant charge package ha~in~ one end at least partially closed, the other end being open, and having a portion, adjacent to the open end, which is deformed for holding the charges, it being possible to cancel the defonmation of this portion for allowing passage o~ the charges.
More specifically, at leas-t one cut-out is provided in the deEormable portion, the portion being maintained in a deformed state by a resilient ring.
In a preferred embodiment of the package of the present invention, the cut-out forms an opening in the wall of the deformable portion which por-tion is surrounded by a res-ilient ring.
Due to this opening, the resilient ring, when the tubular package of the invention is not on the fastener driving tool, causes a reduction of the passage cross--section of the package portion, said cross-section being reduced in comparison with that of the remaining part of the package in order to prevent the charges from coming out.
In another embodiment of the invention, the cut-out forms a tang which, when urged into the interior of the package, reduces the passage cross-section of it.
In such a case, the tang may be maintained in an interior position by the influence of a resilient ring. Al-ternatively, it can also be directly manufactured in position, the connecting area of the tang with the tubular package wall forming a resilient hinge.
For manufacturing reasons, and in particular if the package according to the invention is to be made by extrusion, the deformable portion may advantageously be manufactured separately and then connected to the non-deformed part of the package.
In accordance with a particular embodiment of the invention there is provided a self closing propellant charge package comprising a tubular body of a size to receive a plurality of charges in serial alignment, said body having one end at least partially closed to prevent passage of
The present invention relates to a self-closing propellant charge package adapted fox use with a gravity operated loading device of a power-actuated tool.
In order to assume the double unction of packaging and loading, such a device must retain the charges when it is not mounted on the tool, and let them come out ~hen it is mounted.
Packages assuming these functions are already known. Some of them have an open and plastlcally defonmed end in order to hold their cont~nt, the deformation o~ this end being cancelled for providing passage for the contents. Others have an end which is provided with a substantially semi-circular part, turned oYer towards the other end, for retaining the charges by their edge, and upon which is carried a slidable sleeve which may be positioned to prevent the charges escaping from the packa~e.
The ~irst mentioned type of packages are generally in the form of male members adapted for penetxating into a reception recess of a loading device of the tool. This arrangement displays certain disadvantages. -After repeated use of this type of package involving repeated reformation of the deformed male member, thP
plastic deformation o the end gradually disappears, whereupon the propellant charges are no longer sufficiently held for allow-ing their handling in safety.
As regards the second type o~ package, it is particularly complîcated to manuacture as the sliding sleeve requires costly manufacturing tolerances.
; It is an object of the present invention, thereore, to ob-~iate the various disadvantages of the known packages. This is accomplished, generally, by a tubular propellant charge package ha~in~ one end at least partially closed, the other end being open, and having a portion, adjacent to the open end, which is deformed for holding the charges, it being possible to cancel the defonmation of this portion for allowing passage o~ the charges.
More specifically, at leas-t one cut-out is provided in the deEormable portion, the portion being maintained in a deformed state by a resilient ring.
In a preferred embodiment of the package of the present invention, the cut-out forms an opening in the wall of the deformable portion which por-tion is surrounded by a res-ilient ring.
Due to this opening, the resilient ring, when the tubular package of the invention is not on the fastener driving tool, causes a reduction of the passage cross--section of the package portion, said cross-section being reduced in comparison with that of the remaining part of the package in order to prevent the charges from coming out.
In another embodiment of the invention, the cut-out forms a tang which, when urged into the interior of the package, reduces the passage cross-section of it.
In such a case, the tang may be maintained in an interior position by the influence of a resilient ring. Al-ternatively, it can also be directly manufactured in position, the connecting area of the tang with the tubular package wall forming a resilient hinge.
For manufacturing reasons, and in particular if the package according to the invention is to be made by extrusion, the deformable portion may advantageously be manufactured separately and then connected to the non-deformed part of the package.
In accordance with a particular embodiment of the invention there is provided a self closing propellant charge package comprising a tubular body of a size to receive a plurality of charges in serial alignment, said body having one end at least partially closed to prevent passage of
- 2 -charges therethrough and one end open, said body further lncluding a portion thereof, adjacent said open end, deformed so as to retain charges contained in saicl body, said deform-ation being cancellable to permit passage of charges there-through.
In accordance with a further embodiment of the invention there i5 provided a self-closing propellant charge package adapted for use with a loading device of a power-actuated tool, said package comprising a tubular body of a -size to receive a plurality of charges in serial alignment and means for biasing a portion of said body, said body having one end at least partially closed to prevent passage of charges therethrough and one end open, said body further including a deformable portion adjacent said open end adapted for reform-ation between a first condition admitting of ready passage of charges therethrough and a second condition w~erein passage of charges is prevented, said biasing means biasing said deformable portion to said second condition.
The foregoing and other features of the invention will now be more particularly described in connection with two illustrative embodiments of the propellant charge package according to the invention, and with reference to the accompany-ing drawing thereof, in which:
-Figure 1 is a longitudinal cross-sectional view of a first embodiment of the package according to the invention;
-~ - 2a -~Q~
-Figure 2 is a transverse cross-sectional view along line II-II of Figure l;
-Figure 3 is a partly sectional view of the package o Fig-ure 1, i-ts portion being deformed for holding the charges;
-Figure 4 is a view o the package o Fiyure 3 mounted on a fastener driving tool;
-Figure 5 i5 a partially cross-sectional view of a second embodiment of the package according to the invention;
-Figure 6 is a cross-~ectional view along line VI-VI of Figure 5;
-Figure 7 is a plane view of the de~ormable portion of the package of Figure 5, and -Figure 8 is a partially cross-sectional view of the packaga of Figure S, its por~ion being deformed ~or holding the char~es.
-Figure 9 is a partially cross-sectional view of a third embodiment of the pac~age according to the invention.
Figures 1 to 4 show a packase including a tubular body 1 .`L having its rear end 2 deformed, for instance by heat, to provide a closure with an opening 3 of a diameter les~ than that of the prop~llant charges to be cont~ined.
In the vicinity of its other end 4, which is open and through which the charges are inserted and dispensed, tube l comprise~ a portion S which is resiliently deformable. In this respect, ope~ings 6, for instance substantially in the form of a lozenge elongated in the longitudinal direction of tube 1, have been orm-ed in the wall o portion 5 in such ma~ner as to permit the defor-matio~ of the portion and the reduction o~ its passage cross-sectio to a smaller dimension than that of'the charges in order to hold the latter, as may be seen in Figure 3. To thi~ end, a resilient ring 7 surrounds portion 5 and bears on parts 8 of its wall which are situated betw~en the openings 6. In the embodiment shown in Figure 3, parts 8 of the wall of portion 5 are brought near to
In accordance with a further embodiment of the invention there i5 provided a self-closing propellant charge package adapted for use with a loading device of a power-actuated tool, said package comprising a tubular body of a -size to receive a plurality of charges in serial alignment and means for biasing a portion of said body, said body having one end at least partially closed to prevent passage of charges therethrough and one end open, said body further including a deformable portion adjacent said open end adapted for reform-ation between a first condition admitting of ready passage of charges therethrough and a second condition w~erein passage of charges is prevented, said biasing means biasing said deformable portion to said second condition.
The foregoing and other features of the invention will now be more particularly described in connection with two illustrative embodiments of the propellant charge package according to the invention, and with reference to the accompany-ing drawing thereof, in which:
-Figure 1 is a longitudinal cross-sectional view of a first embodiment of the package according to the invention;
-~ - 2a -~Q~
-Figure 2 is a transverse cross-sectional view along line II-II of Figure l;
-Figure 3 is a partly sectional view of the package o Fig-ure 1, i-ts portion being deformed for holding the charges;
-Figure 4 is a view o the package o Fiyure 3 mounted on a fastener driving tool;
-Figure 5 i5 a partially cross-sectional view of a second embodiment of the package according to the invention;
-Figure 6 is a cross-~ectional view along line VI-VI of Figure 5;
-Figure 7 is a plane view of the de~ormable portion of the package of Figure 5, and -Figure 8 is a partially cross-sectional view of the packaga of Figure S, its por~ion being deformed ~or holding the char~es.
-Figure 9 is a partially cross-sectional view of a third embodiment of the pac~age according to the invention.
Figures 1 to 4 show a packase including a tubular body 1 .`L having its rear end 2 deformed, for instance by heat, to provide a closure with an opening 3 of a diameter les~ than that of the prop~llant charges to be cont~ined.
In the vicinity of its other end 4, which is open and through which the charges are inserted and dispensed, tube l comprise~ a portion S which is resiliently deformable. In this respect, ope~ings 6, for instance substantially in the form of a lozenge elongated in the longitudinal direction of tube 1, have been orm-ed in the wall o portion 5 in such ma~ner as to permit the defor-matio~ of the portion and the reduction o~ its passage cross-sectio to a smaller dimension than that of'the charges in order to hold the latter, as may be seen in Figure 3. To thi~ end, a resilient ring 7 surrounds portion 5 and bears on parts 8 of its wall which are situated betw~en the openings 6. In the embodiment shown in Figure 3, parts 8 of the wall of portion 5 are brought near to
-3-5;5~
each other in ord~r to prov.ide a passage cross-section which is reduced in relation to that of the remaining part of body 1, there-by pre~enting passage of the propellank charges 9.
The deformation of portion 5 in Figure 3 may be cancelled, as will be seen in Figure 4 which shows the package in position on the loading device 10 of a ~astener dri~ing tool not shown in the drawing.
The loading device 10 comprises a support 11, formed with two arms 12 and 13, the arm 12 being continued in its upper part by a sleeve 16, and a member 14 for trans~ering the charges into the tool combustion ch~mber. Member 14 is preerably pivotally mounted about a pin which is integral with support 11, for move-ment in a plane perpendicular to the barrel of the tool. A clo-sure plate 15, for member 14, is pivotally mounted between membex 1~ and arm 13 of support 11. Sleeve 16 comprises an inser~ 17, one end 21 of which pro~ects towards the outside of sleeve 16, and bores 18, 19, 20, each having a diameter substantially equal $o the outside diameter of charges 9, formed respecti~ely in insert . 17, sleeve 16 and transfer member 14, in such manner that the charges 9 may descend by gravity from the body 1 into the transfer membar 14.
In Figure 4, the package is seen mounted on the loading device 10, the end 21 of insert 17 which has an outside diameter sub-stantially equal to the inside diameter of body 1, being introduced in portion 5 of element 1, the latt~r playing the role of a female part in the assembly which is thus realized.
When the end 21 of insert 17 is being introduced in portion 5, said end draws apart, against the action of the resilient ring 7, the wall parts 8 of portion 5, thus cancelling the initial de-3~ formation of the latter and rest~ring the original tubular shapewith a passage cross-section adapted for releasing the charges 9.
_~_ .. . . . . . . . . . . . . . . .
The body 1, which is in abutment against the forward face 22 of sleeve 16, is maintained upon insert 17 by the constriction pro-vided by ring 7. The chaxges 9 may then be put in position in .
the transfer member 14 of the device 10 o the fastener driving tool, from elamen~ 1 through gravity.
According to the present invention, the end 21 of insert 17 may be provided with outside and inside bevels 23 for respecti~e-ly facilitating the introduction of said insert 17 into body 1 and that of the charges 9 in said insert.
lQ The package is thus seen to pr~vide a holding ~unction ~or the charges when it i5 not mountea on the loading device 10, and a release function when it is mounted on said de~ice.
Moreover, when the package is disengaged from device 10, parts 8 of the wall of portion 5, which are no longer held by end 21 of insex~ 17, resiliently resume their ini~ial position under the influence of ring 7, and deform portion 5 to its de~.
formed shape which assumes the holding of charges 9 within body 1.
It will be noted that it is after an operation similar to that of mounting the package on insert 17, that said package is initially filled with charges 9.
Figures 5 to 7 show another embodiment of the package ac-cording to the invention.
In the vicinity of its open end 104, body 101 comprises a portion 105 which is resiliently deformable. Openings 106 have i been ~ormed in ~he wall of said portion 105 for proviaing tangs 124, or instance rectangular, which are inwaraly biased by.a resilien~ ring 107 in order to protrude inside said portion, and consequently, as in the previous embodiment, to limit the passage cross-section. In this case, the charges 109 can be held i~side bod~ 101 through the cooperation of ,.~nds 125 of tangs 124 with edges 1~6 o the charges 109, against which they come in abutment.
, Mounting o-F the package on the loading device of a fastener driving tool, as well as its use in loading the tool, are identi-cal to thosP of the embodimen~ previously described.
As seen in Figure 9, a por~ion 105 may also be provided with tangs 124 which are directly manufactured iIl ~heir inwardly ~ent position. In such a case, the resilient ring 107 is no longer - nece~sary t areas 127 connecting ~angs 124 with the wall portion 105 fonming resilient hinges, which, when the package has been removed from the loading device of the tool, automatically urge said tangs towards the inside o~ portion 105 in ordex to hold the remaining charges 109.
In the latter case, as, for instance, when body 101 has to be manufactured by extrusion, it is easier to form tangs in their inwardly bent position on a relatively short tubular element.
Portion 105 is then separately manufactured, to be thereafter connected, in a manner known in the art, to the non-deformable part of the body 101.
Finally, it is to be noted that the openings formed in the wall of the deformable portion of the body need not be limited to the form of elongated lozenges, as other oblong shapes are en~isaged in the present invention. Likewise, the tangs may also assume other shapes and may be, for instance, semi-circular, with-out departing from the scope of the invention. Accordingly, the scope of the invention is intended to be limited only by the scop~
of the appended claims.
,
each other in ord~r to prov.ide a passage cross-section which is reduced in relation to that of the remaining part of body 1, there-by pre~enting passage of the propellank charges 9.
The deformation of portion 5 in Figure 3 may be cancelled, as will be seen in Figure 4 which shows the package in position on the loading device 10 of a ~astener dri~ing tool not shown in the drawing.
The loading device 10 comprises a support 11, formed with two arms 12 and 13, the arm 12 being continued in its upper part by a sleeve 16, and a member 14 for trans~ering the charges into the tool combustion ch~mber. Member 14 is preerably pivotally mounted about a pin which is integral with support 11, for move-ment in a plane perpendicular to the barrel of the tool. A clo-sure plate 15, for member 14, is pivotally mounted between membex 1~ and arm 13 of support 11. Sleeve 16 comprises an inser~ 17, one end 21 of which pro~ects towards the outside of sleeve 16, and bores 18, 19, 20, each having a diameter substantially equal $o the outside diameter of charges 9, formed respecti~ely in insert . 17, sleeve 16 and transfer member 14, in such manner that the charges 9 may descend by gravity from the body 1 into the transfer membar 14.
In Figure 4, the package is seen mounted on the loading device 10, the end 21 of insert 17 which has an outside diameter sub-stantially equal to the inside diameter of body 1, being introduced in portion 5 of element 1, the latt~r playing the role of a female part in the assembly which is thus realized.
When the end 21 of insert 17 is being introduced in portion 5, said end draws apart, against the action of the resilient ring 7, the wall parts 8 of portion 5, thus cancelling the initial de-3~ formation of the latter and rest~ring the original tubular shapewith a passage cross-section adapted for releasing the charges 9.
_~_ .. . . . . . . . . . . . . . . .
The body 1, which is in abutment against the forward face 22 of sleeve 16, is maintained upon insert 17 by the constriction pro-vided by ring 7. The chaxges 9 may then be put in position in .
the transfer member 14 of the device 10 o the fastener driving tool, from elamen~ 1 through gravity.
According to the present invention, the end 21 of insert 17 may be provided with outside and inside bevels 23 for respecti~e-ly facilitating the introduction of said insert 17 into body 1 and that of the charges 9 in said insert.
lQ The package is thus seen to pr~vide a holding ~unction ~or the charges when it i5 not mountea on the loading device 10, and a release function when it is mounted on said de~ice.
Moreover, when the package is disengaged from device 10, parts 8 of the wall of portion 5, which are no longer held by end 21 of insex~ 17, resiliently resume their ini~ial position under the influence of ring 7, and deform portion 5 to its de~.
formed shape which assumes the holding of charges 9 within body 1.
It will be noted that it is after an operation similar to that of mounting the package on insert 17, that said package is initially filled with charges 9.
Figures 5 to 7 show another embodiment of the package ac-cording to the invention.
In the vicinity of its open end 104, body 101 comprises a portion 105 which is resiliently deformable. Openings 106 have i been ~ormed in ~he wall of said portion 105 for proviaing tangs 124, or instance rectangular, which are inwaraly biased by.a resilien~ ring 107 in order to protrude inside said portion, and consequently, as in the previous embodiment, to limit the passage cross-section. In this case, the charges 109 can be held i~side bod~ 101 through the cooperation of ,.~nds 125 of tangs 124 with edges 1~6 o the charges 109, against which they come in abutment.
, Mounting o-F the package on the loading device of a fastener driving tool, as well as its use in loading the tool, are identi-cal to thosP of the embodimen~ previously described.
As seen in Figure 9, a por~ion 105 may also be provided with tangs 124 which are directly manufactured iIl ~heir inwardly ~ent position. In such a case, the resilient ring 107 is no longer - nece~sary t areas 127 connecting ~angs 124 with the wall portion 105 fonming resilient hinges, which, when the package has been removed from the loading device of the tool, automatically urge said tangs towards the inside o~ portion 105 in ordex to hold the remaining charges 109.
In the latter case, as, for instance, when body 101 has to be manufactured by extrusion, it is easier to form tangs in their inwardly bent position on a relatively short tubular element.
Portion 105 is then separately manufactured, to be thereafter connected, in a manner known in the art, to the non-deformable part of the body 101.
Finally, it is to be noted that the openings formed in the wall of the deformable portion of the body need not be limited to the form of elongated lozenges, as other oblong shapes are en~isaged in the present invention. Likewise, the tangs may also assume other shapes and may be, for instance, semi-circular, with-out departing from the scope of the invention. Accordingly, the scope of the invention is intended to be limited only by the scop~
of the appended claims.
,
Claims (10)
1. A self-closing propellant charge package adapted for use with a loading device of a power-actuated tool, said package comprising a tubular body of a size to receive a plurality of charges in serial alignment and means for biasing a portion of said body, said body having one end at least partially closed to prevent passage of charges therethrough and one end open, said body further including a deformable portion adjacent said open end adapted for reformation between a first condition admitting of ready passage of charges therethrough and a second condition wherein passage of charges is prevented, said biasing means biasing said deformable portion to said second condition.
2. A package according to Claim 1, wherein said deformable portion includes at least one through opening formed in the sidewall of said body.
3. A package according to Claim 2, wherein said opening is elongate in configuration and aligned along the longitudinal axis of said body.
4. A package according to Claim 3, wherein said through opening defines a tang integrally formed in the sidewall of said body, the portion of said tang joining said body comprising a resilient hinge.
5. A package according to Claim 1, wherein said biasing means comprises a resilient member encircling said deformable portion.
6. A package according to Claim 4, wherein said deformable portion is formed with said tang protruding into the interior thereof.
7. A self-closing propellant charge package comprising a tubular body of a size to receive a plurality of charges in serial alignment, said body having one end at least partially closed to prevent passage of charges therethrough and one end open, said body further including a portion thereof, adjacent said open end, deformed so as to retain charges contained in said body, said deformation being cancellable to permit passage of charges therethrough.
8. The package of Claim 7, further comprising a resilient member encircling said deformed portion and biasing the same toward said deformed state.
9. The package of Claim 7, wherein said deformed portion includes at least one opening formed in the sidewall of said body.
10. The package of Claim 9, wherein said opening defines a tang hingedly connected to said body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA317,505A CA1106551A (en) | 1978-12-06 | 1978-12-06 | Self-closing propellant charge package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA317,505A CA1106551A (en) | 1978-12-06 | 1978-12-06 | Self-closing propellant charge package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1106551A true CA1106551A (en) | 1981-08-11 |
Family
ID=4113087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA317,505A Expired CA1106551A (en) | 1978-12-06 | 1978-12-06 | Self-closing propellant charge package |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1106551A (en) |
-
1978
- 1978-12-06 CA CA317,505A patent/CA1106551A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |