CA1284925C - Cigarette tube filling device - Google Patents
Cigarette tube filling deviceInfo
- Publication number
- CA1284925C CA1284925C CA 577705 CA577705A CA1284925C CA 1284925 C CA1284925 C CA 1284925C CA 577705 CA577705 CA 577705 CA 577705 A CA577705 A CA 577705A CA 1284925 C CA1284925 C CA 1284925C
- Authority
- CA
- Canada
- Prior art keywords
- wrapper
- bore
- diameter
- tubular
- guide device
- 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 - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/40—Hand-driven apparatus for making cigarettes
- A24C5/42—Pocket cigarette-fillers
Landscapes
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
Abstract of the Disclosure A cigarette paper tube filling device is described to enable a preformed tobacco rod inherently unsmokeable but formed wholly of smokeable material to be assembled with a preformed cigarette paper tube to provide a cigarette. The device comprises a unitary body and two coaxial tapering bores, one extending from one end for substantially the length of the body for receiving the tube and the other extending from the other end to a shoulder at the join of the two bores against which the open end of the wrapper can abut while the preformed tobacco rod is inserted into the tube.
Description
~4~
CIGARETTE TUBE FILLING DEVICE
The present invention relates to a device useful in the insertion of pre-formed tobacco rods into preformed cigarette tubes to provide smokeable cigarette products.
In Canadian Patent No. 1,235,039, there is described a preformed product for use in making cigarettes by insertion into a pre-formed cigarette tube. The pre-formed product comprises an independent elongate inherently dimensionally and physically stable element made only of smokeable material and having an air-permeable outer surface. The product is unsmokable in that state but provides a smokeable cigarette when the air-permeable surface is covered with a smokeable air impermeable layer, typically by inserting the product into the open end of a preformed paper tube, usually having a filter tip at one end. The free length of the paper tube from the filter to the open end usually corresponds to the length of the pre-formed tobacco element.
In accordance with the present invention, there is provided a device which facilitates assembly of the preformed tubular tobacco product with the pre-formed paper tube and the corresponding method of assembly.
Accordingly, in one embodiment, the present invention provides a guide device for use in the assembly of a preformed product comprising an independent, elongate, inherently dimensionally and physical stable element of circular cross-section and made only of smokeable material and having an air-permeable outer surface whereby the product is unsmokeable in that state and closed at the other by a filter and having a diameter slightly greater than that of the element.
The device comprises an elongate integral body having a first bore extending from one end of the body 4~25 towards the other and tapering from an opening at the one end having a larger diameter than that of the tubular wrapper to a downstream termination having a diameter substantially that of the tubular wrapper. The body has a second bore extending from the other end of the body towards the one end coaxial with the first bore and tapering from an opening at the other end of the body having a larger diameter than the element to a downstream location coinciding with the downstream location of the first bore and having a diameter substantially that of the element but slightly less than the diameter of the tubular wrapper. In this way, an abutment shoulder is defined against which the open end of the wrapper can abut when inserted into the first bore as well as a guide member for guiding the element into the open end of the wrapper when the element is inserted into the second bore.
The device permits the wrapper to be held around its open end by the inner wall of the bore and abutment against the shoulder while the element is inserted into the wrapper through the guide member. In this manner, an effective way of supporting the paper wrapper for insertion of the element into the wrapper and of guiding the element during such insertion is provided.
According to another embodiment of the invention, there is provided a method of assembly of the preformed product with the tubular wrapper to provide a smokeable cigarette. In this method, the open end of the tubular wrapper is inserted into one end of a first tapered bore formed in the body of a guide device and having a diameter slightly greater than that of the wrapper at the one end thereof and tapering from the one end to a shoulder at a downstream end having a diameter corresponding to that of the wrapper. The open end of the wrapper is inserted into the first tapered bore ~D
~ 2~43X~
until the open end abuts the shoulder and is engaged from the side by the downstream end of the first bore.
one end of the element which has a length corresponding to the open length of the wrapper from the one end thereof to the filter, is inserted into one end of a second tapered bore formed in the body of the guide device coaxial with the first bore. The second bore has a diameter substantially greater than the element at the one end thereof and tapers from the one end to an opening in the shoulder of diameter corresponding to that of the element but less than that of the wrapper.
The element is continued to be inserted through the opening and into the wrapper, generally until as much of the length of the element that can be inserted has been inserted, although a lesser length may be inserted, if desired. The tubular wrapper with the element inserted therein then is removed from the first bore and, external of the device, the remainder of the element is inserted into the wrapper, so that the element is completely enclosed by the wrapper, thereby producing a smokeable cigarette.
The element is formed of completely smokeable material but cannot be smoked until enclosed in the paper tube. The very small difference in diameter of the tube and the element ensures a close-fitting engagement between the element and the inside of the tubular cigarette paper wrapper, so that the element is retained within the paper tube.
The advantages of such a system of providion of a so-called "roll your own" cigarette and the distinctions over prior art systems are described in detail in the aforementioned Canadian Patent No. 1,235,039, and reference may be had thereto for description thereof.
The present invention provides method and apparatus to facilitate the assembly of the inherently-unsmokeable 4'3~5 element with the paper tube to provide a smokeable cigarette.
The invention is described further, by way of illustration, with reference to the accompanying drawings, in which:
Figure 1 is an elevational view of a device provided in accordance with one embodiment of the invention;
Figure 2 is an end view of the device of Figure l;
Figure 3 is a sectional view taken at line A-A of Figure 2; and Figure 4 is a close-up sectional view of Figure 3 in location A.
Referring to the drawings, a guide device 10 comprises an elongate body 12 which, in the illustrated embodiment, is of cylindrical shape. However, any other desired shape, for example, a rectangular cross section, may be employed.
The elongate body 12 has a first elongate bore 14 extending from one end 16 substantially for the length of the body to the other end 18. The bore 14 at one end 16 has a diameter slightly greater than the diameter of a hollow cigarette paper wrapper tube 20, which is open at one end and is provided with a conventional filter 22 at the other end. Such preferred cigarette wrapper tubes are commercially available. The bore 14 tapers towards its downstream end whereat it has a diameter corresponding to that of the paper tube.
The elongate body 12 has a second bore 24 extending only for a short distance and tapering at a relatively wide angle, approximately 60 in the illustrated embodiment, to an opening 26 coinciding with the downstream end of the bore 14 having a diameter corresponding to that of an industrially-prefabricated dimensionally-stable rod of tobacco 27, which cannot be smoked outside the tubular wrapper 20. The rod 27 lX~4~
comprises an outer wrapper 28 of porous cigarette paper, thin tobacco foil material or other suitable smokeable material, provided within perforations 30, extending over the entire length of the tobacco rod 27. The perforations may be replaced by slits.
Preferably, the perforations are approximately uniformly distributed over the length and circumference of the tobacco rod 27. The wrapper 28 encloses a rod-like tobacco core 30 having a packing density corresponding approximately to that of an industrially-made cigarette so that the final product is substantially the same as an industrially-produced cigarette. The length of the tobacco rod 27 corresponds approximately to the length of the tobacco-containing volume of the wrapper 20. The outer diameter of the tobacco rod 27 is slightly smaller, preferably about 0.05 to 0.3 mm smaller, than the inner diameter of the tubular wrapper 20, so as to provide a tight fit.
The opening 26 at the downstream end of the bore 24 has a diameter slightly less than that of the paper wrapper 20, so as to define a shoulder 32 against which abuts the open end of the cigarette wrapper 20 when inserted into the bore 14.
In the side wall of the body 12 is formed a tapered depression 34 having a relatively wide angle, approximately 90 in the illustration. This tapered depression 34 may be used to provide a slight inward taper to one end of the tobacco rod 27 to facilitate assembly with the wrapper tube 20.
To assemble a tobacco rod 27 with a paper wrapper tube 20, a tube 20 is inserted into the bore 14 in the body 12 until the tube abuts against the shoulder 32 and the outer surface of the paper tube is engaged by the bore 14. The tobacco rod 27, after engaging one end with the depression 34, if desired, is inserted through ~ ~849%~
the opening 26 into the paper tube 20, an intermediate stage of assembly being shown in Figure 3.
The tobacco rod 27 is pushed into the paper tube 20 usually as far as it will go, although a lesser distance may suffice. The assembly of the inserted tobacco strand and the paper tube then is removed from the bore 14 and the device 10 then has completed its function.
The remaining short length of tobacco rod 27 then is easily pushed into the paper tube 20, so that the free space is completely filled with the tobacco rod 27. The final cigarette is completely fabricated by smokeable material.
In summary of this disclosure, the present invention provides a novel manner of assembly of a tobacco rod with a cigarette paper tube. Modifications are possible within the scope of this invention.
CIGARETTE TUBE FILLING DEVICE
The present invention relates to a device useful in the insertion of pre-formed tobacco rods into preformed cigarette tubes to provide smokeable cigarette products.
In Canadian Patent No. 1,235,039, there is described a preformed product for use in making cigarettes by insertion into a pre-formed cigarette tube. The pre-formed product comprises an independent elongate inherently dimensionally and physically stable element made only of smokeable material and having an air-permeable outer surface. The product is unsmokable in that state but provides a smokeable cigarette when the air-permeable surface is covered with a smokeable air impermeable layer, typically by inserting the product into the open end of a preformed paper tube, usually having a filter tip at one end. The free length of the paper tube from the filter to the open end usually corresponds to the length of the pre-formed tobacco element.
In accordance with the present invention, there is provided a device which facilitates assembly of the preformed tubular tobacco product with the pre-formed paper tube and the corresponding method of assembly.
Accordingly, in one embodiment, the present invention provides a guide device for use in the assembly of a preformed product comprising an independent, elongate, inherently dimensionally and physical stable element of circular cross-section and made only of smokeable material and having an air-permeable outer surface whereby the product is unsmokeable in that state and closed at the other by a filter and having a diameter slightly greater than that of the element.
The device comprises an elongate integral body having a first bore extending from one end of the body 4~25 towards the other and tapering from an opening at the one end having a larger diameter than that of the tubular wrapper to a downstream termination having a diameter substantially that of the tubular wrapper. The body has a second bore extending from the other end of the body towards the one end coaxial with the first bore and tapering from an opening at the other end of the body having a larger diameter than the element to a downstream location coinciding with the downstream location of the first bore and having a diameter substantially that of the element but slightly less than the diameter of the tubular wrapper. In this way, an abutment shoulder is defined against which the open end of the wrapper can abut when inserted into the first bore as well as a guide member for guiding the element into the open end of the wrapper when the element is inserted into the second bore.
The device permits the wrapper to be held around its open end by the inner wall of the bore and abutment against the shoulder while the element is inserted into the wrapper through the guide member. In this manner, an effective way of supporting the paper wrapper for insertion of the element into the wrapper and of guiding the element during such insertion is provided.
According to another embodiment of the invention, there is provided a method of assembly of the preformed product with the tubular wrapper to provide a smokeable cigarette. In this method, the open end of the tubular wrapper is inserted into one end of a first tapered bore formed in the body of a guide device and having a diameter slightly greater than that of the wrapper at the one end thereof and tapering from the one end to a shoulder at a downstream end having a diameter corresponding to that of the wrapper. The open end of the wrapper is inserted into the first tapered bore ~D
~ 2~43X~
until the open end abuts the shoulder and is engaged from the side by the downstream end of the first bore.
one end of the element which has a length corresponding to the open length of the wrapper from the one end thereof to the filter, is inserted into one end of a second tapered bore formed in the body of the guide device coaxial with the first bore. The second bore has a diameter substantially greater than the element at the one end thereof and tapers from the one end to an opening in the shoulder of diameter corresponding to that of the element but less than that of the wrapper.
The element is continued to be inserted through the opening and into the wrapper, generally until as much of the length of the element that can be inserted has been inserted, although a lesser length may be inserted, if desired. The tubular wrapper with the element inserted therein then is removed from the first bore and, external of the device, the remainder of the element is inserted into the wrapper, so that the element is completely enclosed by the wrapper, thereby producing a smokeable cigarette.
The element is formed of completely smokeable material but cannot be smoked until enclosed in the paper tube. The very small difference in diameter of the tube and the element ensures a close-fitting engagement between the element and the inside of the tubular cigarette paper wrapper, so that the element is retained within the paper tube.
The advantages of such a system of providion of a so-called "roll your own" cigarette and the distinctions over prior art systems are described in detail in the aforementioned Canadian Patent No. 1,235,039, and reference may be had thereto for description thereof.
The present invention provides method and apparatus to facilitate the assembly of the inherently-unsmokeable 4'3~5 element with the paper tube to provide a smokeable cigarette.
The invention is described further, by way of illustration, with reference to the accompanying drawings, in which:
Figure 1 is an elevational view of a device provided in accordance with one embodiment of the invention;
Figure 2 is an end view of the device of Figure l;
Figure 3 is a sectional view taken at line A-A of Figure 2; and Figure 4 is a close-up sectional view of Figure 3 in location A.
Referring to the drawings, a guide device 10 comprises an elongate body 12 which, in the illustrated embodiment, is of cylindrical shape. However, any other desired shape, for example, a rectangular cross section, may be employed.
The elongate body 12 has a first elongate bore 14 extending from one end 16 substantially for the length of the body to the other end 18. The bore 14 at one end 16 has a diameter slightly greater than the diameter of a hollow cigarette paper wrapper tube 20, which is open at one end and is provided with a conventional filter 22 at the other end. Such preferred cigarette wrapper tubes are commercially available. The bore 14 tapers towards its downstream end whereat it has a diameter corresponding to that of the paper tube.
The elongate body 12 has a second bore 24 extending only for a short distance and tapering at a relatively wide angle, approximately 60 in the illustrated embodiment, to an opening 26 coinciding with the downstream end of the bore 14 having a diameter corresponding to that of an industrially-prefabricated dimensionally-stable rod of tobacco 27, which cannot be smoked outside the tubular wrapper 20. The rod 27 lX~4~
comprises an outer wrapper 28 of porous cigarette paper, thin tobacco foil material or other suitable smokeable material, provided within perforations 30, extending over the entire length of the tobacco rod 27. The perforations may be replaced by slits.
Preferably, the perforations are approximately uniformly distributed over the length and circumference of the tobacco rod 27. The wrapper 28 encloses a rod-like tobacco core 30 having a packing density corresponding approximately to that of an industrially-made cigarette so that the final product is substantially the same as an industrially-produced cigarette. The length of the tobacco rod 27 corresponds approximately to the length of the tobacco-containing volume of the wrapper 20. The outer diameter of the tobacco rod 27 is slightly smaller, preferably about 0.05 to 0.3 mm smaller, than the inner diameter of the tubular wrapper 20, so as to provide a tight fit.
The opening 26 at the downstream end of the bore 24 has a diameter slightly less than that of the paper wrapper 20, so as to define a shoulder 32 against which abuts the open end of the cigarette wrapper 20 when inserted into the bore 14.
In the side wall of the body 12 is formed a tapered depression 34 having a relatively wide angle, approximately 90 in the illustration. This tapered depression 34 may be used to provide a slight inward taper to one end of the tobacco rod 27 to facilitate assembly with the wrapper tube 20.
To assemble a tobacco rod 27 with a paper wrapper tube 20, a tube 20 is inserted into the bore 14 in the body 12 until the tube abuts against the shoulder 32 and the outer surface of the paper tube is engaged by the bore 14. The tobacco rod 27, after engaging one end with the depression 34, if desired, is inserted through ~ ~849%~
the opening 26 into the paper tube 20, an intermediate stage of assembly being shown in Figure 3.
The tobacco rod 27 is pushed into the paper tube 20 usually as far as it will go, although a lesser distance may suffice. The assembly of the inserted tobacco strand and the paper tube then is removed from the bore 14 and the device 10 then has completed its function.
The remaining short length of tobacco rod 27 then is easily pushed into the paper tube 20, so that the free space is completely filled with the tobacco rod 27. The final cigarette is completely fabricated by smokeable material.
In summary of this disclosure, the present invention provides a novel manner of assembly of a tobacco rod with a cigarette paper tube. Modifications are possible within the scope of this invention.
Claims (10)
1. A guide device for use in the assembly of a preformed product comprising an independent, elongate, inherently dimensionally and physically stable element of circular cross section and made only of smokeable material and having an air-permeable outer surface whereby said product is unsmokeable in that state with a tubular cigarette paper wrapper open at one end and closed at the other by a filter and having a diameter slightly greater than that of said element, which device comprises:
an elongate integral body having a first bore extending from one end of said body towards the other and tapering from an opening at said one end having a larger diameter than that of said tubular wrapper to a downstream termination having a diameter substantially that of said tubular wrapper and a second bore extending from the other end of said body towards said one end coaxial with said first bore and tapering from an opening at said other end of said body having a larger diameter than said element to a downstream location coinciding with the downstream location of said first bore and having a diameter substantially that of said element but slightly less than the diameter of said tubular wrapper so as to define an abutment shoulder against which the open end of said wrapper can abut when inserted into said first bore and a guide surface for guiding said element into said open end of said wrapper when said element is inserted into said second bore.
an elongate integral body having a first bore extending from one end of said body towards the other and tapering from an opening at said one end having a larger diameter than that of said tubular wrapper to a downstream termination having a diameter substantially that of said tubular wrapper and a second bore extending from the other end of said body towards said one end coaxial with said first bore and tapering from an opening at said other end of said body having a larger diameter than said element to a downstream location coinciding with the downstream location of said first bore and having a diameter substantially that of said element but slightly less than the diameter of said tubular wrapper so as to define an abutment shoulder against which the open end of said wrapper can abut when inserted into said first bore and a guide surface for guiding said element into said open end of said wrapper when said element is inserted into said second bore.
2. The guide device of claim 1, wherein said first bore extends for a substantial length of said body from said one end to said another end and tapers at a small angle along its length and said second bore extends for a small distance only from said another end to said abutment shoulder at a relatively wide angle.
3. The guide device of claim 2 wherein said relatively wide angle is approximately 60°C.
4. The guide device of claim 1 wherein said body has a substantially cylindrical cross-section.
5. The guide device of claim 1 wherein said body has a substantially rectangular cross-section.
6. The guide device of claim 1 wherein said body has a third bore formed in one side wall tapering at a relatively wide angle to a blind end for shaping an end of said element prior to insertion of said element into said second bore.
7. A method of assembly of a preformed product comprising an independent, elongate inherently dimensionally and physically stable element of circular cross section and made only of smokeable material and having an air-permeable outer surface whereby said product is unsmokeable in that state with a tubular cigarette paper wrapper open at one end and closed at the other by a conventional filter tip and having a diameter generally matched to that of said element and being slightly greater than that of said element, said tubular wrapper having an open length from said one end to said filter corresponding to the length of said element, to provide a smokeable cigarette which method comprises:
inserting the open end of said tubular wrapper into one end of a first tapered bore formed in the body of a guide device and having a diameter slightly greater than that of said wrapper at said one end thereof and tapering from said one end to a shoulder at a downstream end having a diameter corresponding to that of said wrapper until the open end of said tubular wrapper abuts said shoulder and is engaged from the side by said downstream end of said first bore, inserting one end of said element into one end of a second tapered bore formed in the body of said guide device coaxial with said first bore and having a diameter substantially greater than that of said element at said one end thereof and tapering from said one end thereof to an opening in said shoulder of diameter corresponding to that of said element but less than that of said wrapper and continuing to insert said element through said opening into said wrapper, removing said tubular wrapper with said element inserted therein from said first bore, and inserting said element into said wrapper until said element is completely enclosed by said wrapper.
inserting the open end of said tubular wrapper into one end of a first tapered bore formed in the body of a guide device and having a diameter slightly greater than that of said wrapper at said one end thereof and tapering from said one end to a shoulder at a downstream end having a diameter corresponding to that of said wrapper until the open end of said tubular wrapper abuts said shoulder and is engaged from the side by said downstream end of said first bore, inserting one end of said element into one end of a second tapered bore formed in the body of said guide device coaxial with said first bore and having a diameter substantially greater than that of said element at said one end thereof and tapering from said one end thereof to an opening in said shoulder of diameter corresponding to that of said element but less than that of said wrapper and continuing to insert said element through said opening into said wrapper, removing said tubular wrapper with said element inserted therein from said first bore, and inserting said element into said wrapper until said element is completely enclosed by said wrapper.
8. The method of claim 7 including engaging said one end of said element with a tapered depression in the outer surface of said body to impart a light taper thereto.
9. The method of claim 7 wherein said element has a diameter about 0.05 to about 0.3 mm less than the inside diameter of said paper tube.
10. The method of claim 9 wherein said element comprises a tobacco filler rod having a packing density substantially that of an industrially-produced cigarette and wrapped in a wrapper of smokeable material having perforations therethrough uniformly distributed along the length thereof, whereby said element is unsmokeable as such.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 577705 CA1284925C (en) | 1988-09-16 | 1988-09-16 | Cigarette tube filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 577705 CA1284925C (en) | 1988-09-16 | 1988-09-16 | Cigarette tube filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1284925C true CA1284925C (en) | 1991-06-18 |
Family
ID=4138743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 577705 Expired - Fee Related CA1284925C (en) | 1988-09-16 | 1988-09-16 | Cigarette tube filling device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1284925C (en) |
-
1988
- 1988-09-16 CA CA 577705 patent/CA1284925C/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |