CA2229471A1 - Tent - Google Patents
Tent Download PDFInfo
- Publication number
- CA2229471A1 CA2229471A1 CA002229471A CA2229471A CA2229471A1 CA 2229471 A1 CA2229471 A1 CA 2229471A1 CA 002229471 A CA002229471 A CA 002229471A CA 2229471 A CA2229471 A CA 2229471A CA 2229471 A1 CA2229471 A1 CA 2229471A1
- Authority
- CA
- Canada
- Prior art keywords
- tent
- spring
- canvas
- tube
- tent according
- 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.)
- Abandoned
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
- E04H15/34—Supporting means, e.g. frames
- E04H15/36—Supporting means, e.g. frames arch-shaped type
- E04H15/40—Supporting means, e.g. frames arch-shaped type flexible
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Tents Or Canopies (AREA)
Abstract
A tent (1) of the kind which automatically is put up by releasing the elastic force from a pre-tightened spring unit which is belonging to the tent. The tent canvas (4) of the tent has in pitched condition the shape of a longitudinal tube (6). The spring unit consists of at least one continuous screw spring (5). The tent has a simple construction and a low production prize, and it is easy to pitch and fold up again. In folded up condition the tent forms a disc-shaped package, which has a small diametre and therefore takes up very little space. The tent is suitable for a one-man tent.
Description
The invention concerns a tent of the kind which automatically is put up by releasing the elastic force from a pre-tightened spring unit which is belonging to the tent, by which the tent canvas of the tent has the shape o~ a longitudinal tube in 5 pitched condition, and that the spring unit consists o~ at least one continuous screw spring along this tube.
Such a tent is known from the patent publication WO 94/11600.
In this case the spring unit consists o~ one single continuous 10 steel spring which forms two straps when the tent is pitched.
One of these straps works as a sort of a bottom ~rame, which keeps the ~oot of the tent canvas distended while the other one lifts the tent canvas above the underlying layer. When the tent is to be transported or stored, it can be folded up, 15 twisted and bound together to a flat, circular package. This package will, however, be rather large, since the straps, when the tent is pitched, will have to span a lying person and therefore necessarily must have a rather large extension in at least two ~im~nsions. To this can be added that the 20 construction in itself is rather complicated and expensive.
From US patent No. 2.828.755 is known a tent having a conical screw spring for putting up the tent. This construction has, however the drawback that it cannot be folded to a smaller 25 diameter.
From US patent No. 1.990.804 is known another tent construction having the same drawback that it cannot be ~olded to a smaller diameter.
The object of this invention is to provide a tent of the type mentioned in the opening paragraph with a simple construction and a low production price, being easy to travel with and fold up again, and which in folded up condition takes up less space 35 than known until now.
o S
This is obtained according to the invention by the screw spring at each end having one, mainly plane, winding with a ~ree end. The windings o~ the spring will work as a row o~
coherent straps holding the tent canvas distended. The S construction is suitable ~or a one-man tent with a tranverse measurement suitable ~or one lyin~ person. While the straps o~
the above-mentioned known construction necessarily had to have tranverse measurements or diametres, which at least were as large as the height o~ the person, whom the tent should 10 accommodate, the straps or the spring windings according to the invention can have a much smaller diametre in relation to the tranverse measurement o~ the person, whereby the tent acc~rding to the invention e~ually obtains a much smaller diametre in ~olded up condition than the tent ~nown. Mainly, 15 the tent consists o~ only two components which both are simple and cheap to produce. The tent canvas can thus be produced ~rom one single piece o~ rectangular cloth, which only have to be joined together along the ~ree longit~ n~l edges. The screw spring can in a simple way be wounded up by a length o~
20 spring thread cutted o~~ and being of suitable material with a pre-tightening, which automatically extends the tubular tent canvas when being released. The tent is there~ore self-pitching and can with e~ortless ease be ~olded up again by manually squeezing the spring ends against each other.
The tent can consist only of a tent canvas tube with open ends, whereby the tent have the character o~ a shelter. A
proper tent can be created by closing the ends with walls. At least one o~ these walls can advantageously be constructed as 30 an axial prolongation o~ the tent canvas which ~orms the tent canvas tube, and be closed by constriction with a string or by means o~ e.g. a zipper.
The spring thread can in principle have any cross section, 35 whatsoever. The cross sections preferred are round, semicircular or rectangular. It will be pleasant for the AMENaEI~ F/~
-~ CA 02229471 1998-02-12 . : .
~ - 3 person, who lies in the tent, i~ the plane side o~ the semlcircular cross section or the long side o~ the rectangular cross section turn against the inner o~ the tent.
S The spring must have so many windings that the tent canvas can be distended and the spring be squeezed together, without it thereby will cause permanent de~ormations. In the interest o~
the production costs and in order to be able to ~old up the tent to the smallest possible volume, there have, on the other 10 side, to be no more windings than necessary. These conditions are best ~ul~illed, when the screw spring has a pitch of between 1/8 and 1, and especially between 1/4 and 3/4 times the diametre o~ the spring.
15 The tent can, as said be~ore, be ~olded up merely by squeezing the spring ends manually against each other, so that a disc-shaped package is ~ormed approximately with the same diametre as the screw spring. This diametre can, however, advantageously be reduced additionally by ~irst m~n~ ly 20 twisting the windings in the disc-shaped package so that they ~orm a ~igure o~ eight, and then twist the two halves o~ said ~igure o~ eight around the intersection point o~ the windings in the ~igure o~ eight, so that the two halves will be abutted on each other. There~y a second disc-shaped package is ~ormed 25 with approximately hal~ the diametre o~ the ~irst package.
By the said operation the spring thread is twisted around its centre line, and it is necessary that a person manually is able to twist the ~olded windings in this way, and without 30 permanent deformations thereby will arise. The cross section of the spring thread must there~ore have a small polar resistance element, and since the spring ~urthermore shall be able to keep the tent canvas sa~ely distended, the material, which is used ~or the spring thread, must have a rather large 35 strength. In order to avoid permanent de~ormations the material must ~urthermore be very elastic.
Al\~l~~ c . . .-- . . .
i CA 02229471 1998-02-12 These demands can be met in praxis when the spring thread is produced ~rom a material with an elasticity coe~icient o~
less than 100,000 kp/cm2 and a yield point o~ more than 1,000 kg/cm2. A suitable material would be plast, especially ~ibre-amoured plast.
The diametre o~ the disc-shaped package can, however, also be reduced by twisting the ends o~ the spring in di~erent directions around the spring axis to the opposite direction o~
the one in which the windings are turning. By this solution it would be expedient to use a spring thread with a ~lat cross section. When the thread radially is thin, the spring will then easily could be twisted around its axis, and i~ at the same time the spring is ~;m~nsioned with adequate axial width, the spring can be brought to produce a pressure, which nevertheless is large enough to pitch the tent and keep the tent canvas distended.
When the tent is ~olded up in one o~ the said ways, it can be ~ixed in ~olded position by means o~ at least one releasable lock, e.g. a belt or similar means.
The invention will be explained more ~ully by the ~ollowing description o~ embodiments, which just serve as examples, with re~erence to the drawing, where Fig. 1 shows, seen in perspective, a pitched tent according to the invention, Fig. 2 shows the same tent ~olded up to a ~irst disc-shaped package with the same diametre as the tent in pitched condition, AMEN~E~ ~1 IEEl , CA 02229471 1998-02-12 . .
~ ~ 5 Fig. 3 shows the package shown in ~ig. 2 when it is twisted to the ~igure o~ eight in the direction o~ the arrows, Fig. 4 shows how the two halves o~ the ~igure o~ elght, shown 5 in fig. 3, are twisted against each other in the direction o~
the arrows around the intersection point o~ the spring windings in the ~igure o~ eight.
Fig. 5 shows the two halves o~ the ~igure o~ eight, shown in 10 ~ig. 3 and 4, twisted to be abutted on each other, so that a second disc-shaped package is ~ormed which has hal~ the diametre o~ the ~irst disc-shaped package shown in fig. 2 and releasably is ~ixed by means o~ a belt, 15 Fig. 6 shows the spring o~ the tent shown in ~ig. 1, seen ~rom the end, and Fig 7. shows the same spring helically twisted in order to reduce the diametre.
In ~ig. 1 is seen a tent according to the invention designated as a whole with the re~erence number 1. In the ~igure the tent is in position ~or use pitched on an underlying layer 2, e.g.
soil, with a person 3 lying in the tent.
The two main parts o~ the tent are the tent canvas 4 and a screw spring 5 to keep the tent distended. In the shown pitched condition the tent has the shape o~ a longitudinal tube 6, which at the ends is closed by a ~irst wall 7 and a 30 second wall 8, respectively.
The ~irst wall 7 consists o~ circular piece o~ tent canvas, while the second wall 8 consists of an extension o~ that tent canvas which ~orms the tent canvas tube 6. At the edge 9 o~
35 this extension there is ~ormed a round-going casing 10 with a string 11. By loosening the string the user can make an ~~~0~0 SH
.
~ ~ 6 opening ~or the passage in and out of the tent, and by tightening the string, the user can close the tent to the wanted extend. In the figure the second wall 8 is only partly closed, since a ventilation opening 12 is left. It goes 5 without saying that the ~irst end wall 7, i~ so wanted, can be adapted in the same way as the second end wall 8.
The screw spring is wound with a pre-tightening, which keeps the tent canvas tube 6 braced up. By manually squeezing the 10 ends o~ the tent into the direction of the arrows, the ~irst disc-~ormed package 13 ~rom ~ig. 2 is created, having the same diametre as the screw spring 5.
In ~ig. 3 this ~irst package 13 is twisted manually into the 15 direction o~ the arrows, ~orming the ~igure o~ eight.
In ~ig. 4 the two halves, 14 and 15 respectively, of the ~igure o~ eight are twisted a~ditionally against each other into the direction of the arrows around the intersection point 20 16 ~ormed between the windings o~ the spring.
In ~ig. 5 the two halves 14, 15 are brought to rest against each other, whereby the tent has reached its ~inal folding position in the shape o~ a second disc-shaped package 17 with 25 a diametre only hal~ the size o~ that o~ the ~irst package 13 or, said in other words, as the tent 1 in pitched position.
The tent will there~ore take up very little space in folded up condition and is consequently easy to transport and store.
30 In the case shown, the tent is ~ixed in ~olded up condition releasably by means of a belt 1~, which has a hole 19 which fits to a pivot 20 on the hal~ 15 ~rom the figure of eight.
When the belt is loosened, the tent will automatically jump up to the position shown in fig. 1. The tent is therefore 35 self-pitching.
A~Jlc?~OEO ShEE' ,, . :
In the case shown the sprlng is fixed in relation to the tent canvas by means o~ straps 21 on the inner side of the tent canvas. Instead a continuous casing can be used.
Alternatively, the spring can be glued to the tent canvas 5 This solution is especially expedient, when a ~lat spring thread is used.
At the ends, the spring can be fixed to a closed ring (not shown) which marks the axial limitations of the tent canvas 10 tube. In fig. 1 there is, however, at each o~ the ends o~ the tent canvas tube instead an open ring, 22 and 23, respectively, which quite simple are formed as plane windings in continuation of the helical windings o~ the spring.
15 In fig. 6 the spring is seen ~rom the end in that position, where the tent is pitched, that is with the same diametre as the tent. The tent canvas is, in regard of the clearness, not shown in this case. In fig. 7 the ends o~ the spring are twisted in opposite directions around the spring axis in the 20 direction as shown with the arrows. Thereby the diametre is reduced so that the tent in its final folding up position will take up as little space as possible.
This final folding up position can be fixed by turning the 25 second end wall 8 bac~wards and around the disc-shaped package with reduced diametre and then lace up the opening of the end wall with the string 11.
When the tent is folded up in this way, there can expediently 30 be used a flat spring thread with a comparatively small radial extension and a rather large axial extension. Thereby it will be easy to twist the spring, and thereby the tent, together to a small diametre, and at the same time the spring is provided with the ~orce necessary to pitch the tent and keep the tent 35 canvas properly distented.
..
A one-man tent according to the invention can, in pitched conditlon, have a dlamtre o~ e.g. 120 cm and a length o~
approximately 200 cm. In ~olded up condltlon the tent wlll typically have a diametre o~ 60 cm or less and a thlckness o~
5 approxlmately ~-3 cm.
The invention is shown on the drawing and described above ~rom the presumptlon that the cross section is circular. This is, however, only to be understood as an example, and withln the 10 ~rames o~ the invention the tent can have any suitable cross section.
Thus the cross section can be mainly quadrangular, trapezoldal or triangular.
By a particular expedient embodiment the cross section can have a plane side, which wlth rather large bendings ends up in a cycloid. In the uslng posltion the plane slde wlll then repose on the underlying layer, while the cyclold arches above 20 the underlylng layer. Thereby the plane slde will ~orm a convenient couch ~or the person who lies ln the tent, and the cycloid has a shape, whlch makes the sprlng sultable to take up loadings on the tent ~rom e.g. the sel~-weight o~ the tent canvas.
Such a tent is known from the patent publication WO 94/11600.
In this case the spring unit consists o~ one single continuous 10 steel spring which forms two straps when the tent is pitched.
One of these straps works as a sort of a bottom ~rame, which keeps the ~oot of the tent canvas distended while the other one lifts the tent canvas above the underlying layer. When the tent is to be transported or stored, it can be folded up, 15 twisted and bound together to a flat, circular package. This package will, however, be rather large, since the straps, when the tent is pitched, will have to span a lying person and therefore necessarily must have a rather large extension in at least two ~im~nsions. To this can be added that the 20 construction in itself is rather complicated and expensive.
From US patent No. 2.828.755 is known a tent having a conical screw spring for putting up the tent. This construction has, however the drawback that it cannot be folded to a smaller 25 diameter.
From US patent No. 1.990.804 is known another tent construction having the same drawback that it cannot be ~olded to a smaller diameter.
The object of this invention is to provide a tent of the type mentioned in the opening paragraph with a simple construction and a low production price, being easy to travel with and fold up again, and which in folded up condition takes up less space 35 than known until now.
o S
This is obtained according to the invention by the screw spring at each end having one, mainly plane, winding with a ~ree end. The windings o~ the spring will work as a row o~
coherent straps holding the tent canvas distended. The S construction is suitable ~or a one-man tent with a tranverse measurement suitable ~or one lyin~ person. While the straps o~
the above-mentioned known construction necessarily had to have tranverse measurements or diametres, which at least were as large as the height o~ the person, whom the tent should 10 accommodate, the straps or the spring windings according to the invention can have a much smaller diametre in relation to the tranverse measurement o~ the person, whereby the tent acc~rding to the invention e~ually obtains a much smaller diametre in ~olded up condition than the tent ~nown. Mainly, 15 the tent consists o~ only two components which both are simple and cheap to produce. The tent canvas can thus be produced ~rom one single piece o~ rectangular cloth, which only have to be joined together along the ~ree longit~ n~l edges. The screw spring can in a simple way be wounded up by a length o~
20 spring thread cutted o~~ and being of suitable material with a pre-tightening, which automatically extends the tubular tent canvas when being released. The tent is there~ore self-pitching and can with e~ortless ease be ~olded up again by manually squeezing the spring ends against each other.
The tent can consist only of a tent canvas tube with open ends, whereby the tent have the character o~ a shelter. A
proper tent can be created by closing the ends with walls. At least one o~ these walls can advantageously be constructed as 30 an axial prolongation o~ the tent canvas which ~orms the tent canvas tube, and be closed by constriction with a string or by means o~ e.g. a zipper.
The spring thread can in principle have any cross section, 35 whatsoever. The cross sections preferred are round, semicircular or rectangular. It will be pleasant for the AMENaEI~ F/~
-~ CA 02229471 1998-02-12 . : .
~ - 3 person, who lies in the tent, i~ the plane side o~ the semlcircular cross section or the long side o~ the rectangular cross section turn against the inner o~ the tent.
S The spring must have so many windings that the tent canvas can be distended and the spring be squeezed together, without it thereby will cause permanent de~ormations. In the interest o~
the production costs and in order to be able to ~old up the tent to the smallest possible volume, there have, on the other 10 side, to be no more windings than necessary. These conditions are best ~ul~illed, when the screw spring has a pitch of between 1/8 and 1, and especially between 1/4 and 3/4 times the diametre o~ the spring.
15 The tent can, as said be~ore, be ~olded up merely by squeezing the spring ends manually against each other, so that a disc-shaped package is ~ormed approximately with the same diametre as the screw spring. This diametre can, however, advantageously be reduced additionally by ~irst m~n~ ly 20 twisting the windings in the disc-shaped package so that they ~orm a ~igure o~ eight, and then twist the two halves o~ said ~igure o~ eight around the intersection point o~ the windings in the ~igure o~ eight, so that the two halves will be abutted on each other. There~y a second disc-shaped package is ~ormed 25 with approximately hal~ the diametre o~ the ~irst package.
By the said operation the spring thread is twisted around its centre line, and it is necessary that a person manually is able to twist the ~olded windings in this way, and without 30 permanent deformations thereby will arise. The cross section of the spring thread must there~ore have a small polar resistance element, and since the spring ~urthermore shall be able to keep the tent canvas sa~ely distended, the material, which is used ~or the spring thread, must have a rather large 35 strength. In order to avoid permanent de~ormations the material must ~urthermore be very elastic.
Al\~l~~ c . . .-- . . .
i CA 02229471 1998-02-12 These demands can be met in praxis when the spring thread is produced ~rom a material with an elasticity coe~icient o~
less than 100,000 kp/cm2 and a yield point o~ more than 1,000 kg/cm2. A suitable material would be plast, especially ~ibre-amoured plast.
The diametre o~ the disc-shaped package can, however, also be reduced by twisting the ends o~ the spring in di~erent directions around the spring axis to the opposite direction o~
the one in which the windings are turning. By this solution it would be expedient to use a spring thread with a ~lat cross section. When the thread radially is thin, the spring will then easily could be twisted around its axis, and i~ at the same time the spring is ~;m~nsioned with adequate axial width, the spring can be brought to produce a pressure, which nevertheless is large enough to pitch the tent and keep the tent canvas distended.
When the tent is ~olded up in one o~ the said ways, it can be ~ixed in ~olded position by means o~ at least one releasable lock, e.g. a belt or similar means.
The invention will be explained more ~ully by the ~ollowing description o~ embodiments, which just serve as examples, with re~erence to the drawing, where Fig. 1 shows, seen in perspective, a pitched tent according to the invention, Fig. 2 shows the same tent ~olded up to a ~irst disc-shaped package with the same diametre as the tent in pitched condition, AMEN~E~ ~1 IEEl , CA 02229471 1998-02-12 . .
~ ~ 5 Fig. 3 shows the package shown in ~ig. 2 when it is twisted to the ~igure o~ eight in the direction o~ the arrows, Fig. 4 shows how the two halves o~ the ~igure o~ elght, shown 5 in fig. 3, are twisted against each other in the direction o~
the arrows around the intersection point o~ the spring windings in the ~igure o~ eight.
Fig. 5 shows the two halves o~ the ~igure o~ eight, shown in 10 ~ig. 3 and 4, twisted to be abutted on each other, so that a second disc-shaped package is ~ormed which has hal~ the diametre o~ the ~irst disc-shaped package shown in fig. 2 and releasably is ~ixed by means o~ a belt, 15 Fig. 6 shows the spring o~ the tent shown in ~ig. 1, seen ~rom the end, and Fig 7. shows the same spring helically twisted in order to reduce the diametre.
In ~ig. 1 is seen a tent according to the invention designated as a whole with the re~erence number 1. In the ~igure the tent is in position ~or use pitched on an underlying layer 2, e.g.
soil, with a person 3 lying in the tent.
The two main parts o~ the tent are the tent canvas 4 and a screw spring 5 to keep the tent distended. In the shown pitched condition the tent has the shape o~ a longitudinal tube 6, which at the ends is closed by a ~irst wall 7 and a 30 second wall 8, respectively.
The ~irst wall 7 consists o~ circular piece o~ tent canvas, while the second wall 8 consists of an extension o~ that tent canvas which ~orms the tent canvas tube 6. At the edge 9 o~
35 this extension there is ~ormed a round-going casing 10 with a string 11. By loosening the string the user can make an ~~~0~0 SH
.
~ ~ 6 opening ~or the passage in and out of the tent, and by tightening the string, the user can close the tent to the wanted extend. In the figure the second wall 8 is only partly closed, since a ventilation opening 12 is left. It goes 5 without saying that the ~irst end wall 7, i~ so wanted, can be adapted in the same way as the second end wall 8.
The screw spring is wound with a pre-tightening, which keeps the tent canvas tube 6 braced up. By manually squeezing the 10 ends o~ the tent into the direction of the arrows, the ~irst disc-~ormed package 13 ~rom ~ig. 2 is created, having the same diametre as the screw spring 5.
In ~ig. 3 this ~irst package 13 is twisted manually into the 15 direction o~ the arrows, ~orming the ~igure o~ eight.
In ~ig. 4 the two halves, 14 and 15 respectively, of the ~igure o~ eight are twisted a~ditionally against each other into the direction of the arrows around the intersection point 20 16 ~ormed between the windings o~ the spring.
In ~ig. 5 the two halves 14, 15 are brought to rest against each other, whereby the tent has reached its ~inal folding position in the shape o~ a second disc-shaped package 17 with 25 a diametre only hal~ the size o~ that o~ the ~irst package 13 or, said in other words, as the tent 1 in pitched position.
The tent will there~ore take up very little space in folded up condition and is consequently easy to transport and store.
30 In the case shown, the tent is ~ixed in ~olded up condition releasably by means of a belt 1~, which has a hole 19 which fits to a pivot 20 on the hal~ 15 ~rom the figure of eight.
When the belt is loosened, the tent will automatically jump up to the position shown in fig. 1. The tent is therefore 35 self-pitching.
A~Jlc?~OEO ShEE' ,, . :
In the case shown the sprlng is fixed in relation to the tent canvas by means o~ straps 21 on the inner side of the tent canvas. Instead a continuous casing can be used.
Alternatively, the spring can be glued to the tent canvas 5 This solution is especially expedient, when a ~lat spring thread is used.
At the ends, the spring can be fixed to a closed ring (not shown) which marks the axial limitations of the tent canvas 10 tube. In fig. 1 there is, however, at each o~ the ends o~ the tent canvas tube instead an open ring, 22 and 23, respectively, which quite simple are formed as plane windings in continuation of the helical windings o~ the spring.
15 In fig. 6 the spring is seen ~rom the end in that position, where the tent is pitched, that is with the same diametre as the tent. The tent canvas is, in regard of the clearness, not shown in this case. In fig. 7 the ends o~ the spring are twisted in opposite directions around the spring axis in the 20 direction as shown with the arrows. Thereby the diametre is reduced so that the tent in its final folding up position will take up as little space as possible.
This final folding up position can be fixed by turning the 25 second end wall 8 bac~wards and around the disc-shaped package with reduced diametre and then lace up the opening of the end wall with the string 11.
When the tent is folded up in this way, there can expediently 30 be used a flat spring thread with a comparatively small radial extension and a rather large axial extension. Thereby it will be easy to twist the spring, and thereby the tent, together to a small diametre, and at the same time the spring is provided with the ~orce necessary to pitch the tent and keep the tent 35 canvas properly distented.
..
A one-man tent according to the invention can, in pitched conditlon, have a dlamtre o~ e.g. 120 cm and a length o~
approximately 200 cm. In ~olded up condltlon the tent wlll typically have a diametre o~ 60 cm or less and a thlckness o~
5 approxlmately ~-3 cm.
The invention is shown on the drawing and described above ~rom the presumptlon that the cross section is circular. This is, however, only to be understood as an example, and withln the 10 ~rames o~ the invention the tent can have any suitable cross section.
Thus the cross section can be mainly quadrangular, trapezoldal or triangular.
By a particular expedient embodiment the cross section can have a plane side, which wlth rather large bendings ends up in a cycloid. In the uslng posltion the plane slde wlll then repose on the underlying layer, while the cyclold arches above 20 the underlylng layer. Thereby the plane slde will ~orm a convenient couch ~or the person who lies ln the tent, and the cycloid has a shape, whlch makes the sprlng sultable to take up loadings on the tent ~rom e.g. the sel~-weight o~ the tent canvas.
Claims (10)
1. The invention concerns a tent of the kind which automatically is put up by releasing the elastic force from a pre-tightened spring unit which is belonging to the tent, by which the tent canvas of the tent has the shape of a longitudinal tube in pitched condition, and that the spring unit consists of at least one continuous screw spring along this tube, characterized in that the screw spring at each end has one, mainly plane, winding with a free end.
2. A tent according to claim 1, characterized in that the cross section of the spring thread has, in the main, the shape of a rectangle, and that each of its long sides is extending in the longitudinal direction of the tent.
3. A tent according to claim 1 or 2, characterized in-that the cross section of the tent has one, mainly plane side which ends up in a curve, e.g. a cycloid.
4. A tent according to claim 1,2 or 3, characterized in that the screw spring has a pitch of between 1/8 and 1, and especially between 1/4 and 3/4 times the diameter of the screw spring.
5. A tent according to each of the claims 1 - 4, characterized in that there at each end of the tent canvas tube is formed a wall.
6. A tent according to each of the claims 1 - 5 characterized in that at least one of the end walls of the tent is made from a piece of tent canvas which makes an axial extension of the tent canvas tube and releasably can be gathered at the end by e.g. being laced up with a string.
7. A tent according to each of the claims 1 - 7, characterized in that it comprises a lock to hold the tent in a folded up position.
8. A tent according to each of the claims 1 - 7, characterized in that the spring thread has a round or semicircular cross section.
9. A tent according to each of the claims 1 - 8, characterized in that the spring is produced from a material with an elasticity coefficient of less than 100,000 kg/cm2 and a yield point of more than 1,000 kg/cm2.
10. A tent according to each of the claims 1 - 9, characterized in that the spring is produced of plast, especially fibre-armoured plast
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK0920/95 | 1995-08-16 | ||
| DK092095A DK92095A (en) | 1995-08-16 | 1995-08-16 | Tent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2229471A1 true CA2229471A1 (en) | 1997-02-27 |
Family
ID=8099032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002229471A Abandoned CA2229471A1 (en) | 1995-08-16 | 1996-08-12 | Tent |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0845069A1 (en) |
| JP (1) | JPH11510866A (en) |
| KR (1) | KR19990036382A (en) |
| CN (1) | CN1198793A (en) |
| AU (1) | AU6655596A (en) |
| CA (1) | CA2229471A1 (en) |
| DK (1) | DK92095A (en) |
| EA (1) | EA199800151A1 (en) |
| NO (1) | NO980626D0 (en) |
| NZ (1) | NZ313973A (en) |
| WO (1) | WO1997007307A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6328049B1 (en) * | 2000-07-24 | 2001-12-11 | Gyeong S. Kim | Collapsible tent |
| US20020185395A1 (en) * | 2001-06-06 | 2002-12-12 | Kirk Lindamood | Pop-up electronic equipment enclosure |
| US6823882B1 (en) * | 2002-10-11 | 2004-11-30 | James Michael Innes | Tent assembly |
| GB0602668D0 (en) * | 2006-02-10 | 2006-03-22 | Origin Products Ltd | Container for retaining a structure |
| GB2487060B (en) * | 2011-01-05 | 2014-05-28 | Prime Honour Dev Ltd | A collapsible portable structure |
| CN105545071B (en) * | 2015-12-12 | 2018-02-13 | 重庆强大巴郡知识产权服务有限公司 | A kind of heat insulation and heat control tent |
| CN107859423A (en) * | 2017-11-06 | 2018-03-30 | 鹤山市同信实业有限公司 | A kind of extension type tent |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1990804A (en) * | 1933-10-19 | 1935-02-12 | Watson Ernest | Portable dressing booth |
| US2828755A (en) * | 1955-10-10 | 1958-04-01 | Paul J Stockman | Collapsible tent |
| US3675667A (en) * | 1970-09-25 | 1972-07-11 | Jack V Miller | Self-erecting tent |
| US4224754A (en) * | 1979-01-11 | 1980-09-30 | Derryberry S Wayne | Portable hunting blind |
-
1995
- 1995-08-16 DK DK092095A patent/DK92095A/en not_active Application Discontinuation
-
1996
- 1996-08-12 AU AU66555/96A patent/AU6655596A/en not_active Abandoned
- 1996-08-12 JP JP9508843A patent/JPH11510866A/en active Pending
- 1996-08-12 CA CA002229471A patent/CA2229471A1/en not_active Abandoned
- 1996-08-12 WO PCT/DK1996/000345 patent/WO1997007307A1/en not_active Application Discontinuation
- 1996-08-12 CN CN96197417A patent/CN1198793A/en active Pending
- 1996-08-12 KR KR1019980701051A patent/KR19990036382A/en not_active Application Discontinuation
- 1996-08-12 NZ NZ313973A patent/NZ313973A/en unknown
- 1996-08-12 EP EP96926327A patent/EP0845069A1/en not_active Withdrawn
- 1996-08-12 EA EA199800151A patent/EA199800151A1/en not_active IP Right Cessation
-
1998
- 1998-02-13 NO NO980626A patent/NO980626D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11510866A (en) | 1999-09-21 |
| EA000162B1 (en) | 1998-10-29 |
| EP0845069A1 (en) | 1998-06-03 |
| EA199800151A1 (en) | 1998-10-29 |
| NO980626L (en) | 1998-02-13 |
| NO980626D0 (en) | 1998-02-13 |
| WO1997007307A1 (en) | 1997-02-27 |
| AU6655596A (en) | 1997-03-12 |
| KR19990036382A (en) | 1999-05-25 |
| DK92095A (en) | 1997-03-19 |
| CN1198793A (en) | 1998-11-11 |
| NZ313973A (en) | 1999-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |