CA1110850A - Collapsible trap - Google Patents
Collapsible trapInfo
- Publication number
- CA1110850A CA1110850A CA358,435A CA358435A CA1110850A CA 1110850 A CA1110850 A CA 1110850A CA 358435 A CA358435 A CA 358435A CA 1110850 A CA1110850 A CA 1110850A
- Authority
- CA
- Canada
- Prior art keywords
- trap
- frame
- collapsible
- collapsed
- collapsible trap
- 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
- 241000238424 Crustacea Species 0.000 abstract description 5
- 241000251468 Actinopterygii Species 0.000 description 4
- 241000238557 Decapoda Species 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K69/00—Stationary catching devices
- A01K69/06—Traps
- A01K69/10—Collapsible traps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M23/00—Traps for animals
- A01M23/24—Spring traps, e.g. jaw or like spring traps
- A01M23/32—Racket net traps
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A trap for catching crustaceans constructed from frame members slidable relative to each other between two positions, in one of which the trap is open for catching crustaceans and in the other of which it is closed and in a collapsed condition for transportation on boats and for storage.
A trap for catching crustaceans constructed from frame members slidable relative to each other between two positions, in one of which the trap is open for catching crustaceans and in the other of which it is closed and in a collapsed condition for transportation on boats and for storage.
Description
SPECIFICA~ION
This invention relates to a trap which is suit-able for catching crustaceans, such as crabs, lobsters, shrimps or prawns, as well as pelagic fish and other fish.
In Canadian Patent No.971751 there is disclosed a prior trap which is foldable but which, because of its construction, requires an appreciable effort and time for folding or unfolding on a fishing boat.
This collapsible trap can readily be extended to a non-c~llapsed or collapsed po~ition of use under any adverse condition in which fishermen are often required to work. The trap collapses into a neat, compact ~hape which can be stored or stocked with other such traps to occupy a minimum of space on the deck of the fishing boat.
It is an object of the present invention to provide a trap which is easily put into a non-collapsed operational position or into a collapsed position when stored and also is more universal in u~e.
An~embodiment of the present invention will now j be described by way of example, with reference to the accompanying drawings in which:
Figure 1 is a plan view of a collapsible trap in accordance with the described embodiment of the present 1 ~ ~q4~ 5 ~
Figure 2 is a plan view showing the trap par-tially closed, Figure 3 is a side view taken on the line III-III, Figure 4 is a partial view of the intersecting top or bottom frame members to show details of the arrange-ment, Figure 5 is a plan view of the intersecting frame members, Figure 6 is a fragmentary detail view showing the connection of the sliding side frame members and hinge arrangement of the trap unloading door with the enclosed net purposely omitted, Figure 7 is a top view of the brackets in line VII-VII Figure 6, and Figure 8 shows an entrance ring for the trap.
Referring to the drawings, a collapsible trap
This invention relates to a trap which is suit-able for catching crustaceans, such as crabs, lobsters, shrimps or prawns, as well as pelagic fish and other fish.
In Canadian Patent No.971751 there is disclosed a prior trap which is foldable but which, because of its construction, requires an appreciable effort and time for folding or unfolding on a fishing boat.
This collapsible trap can readily be extended to a non-c~llapsed or collapsed po~ition of use under any adverse condition in which fishermen are often required to work. The trap collapses into a neat, compact ~hape which can be stored or stocked with other such traps to occupy a minimum of space on the deck of the fishing boat.
It is an object of the present invention to provide a trap which is easily put into a non-collapsed operational position or into a collapsed position when stored and also is more universal in u~e.
An~embodiment of the present invention will now j be described by way of example, with reference to the accompanying drawings in which:
Figure 1 is a plan view of a collapsible trap in accordance with the described embodiment of the present 1 ~ ~q4~ 5 ~
Figure 2 is a plan view showing the trap par-tially closed, Figure 3 is a side view taken on the line III-III, Figure 4 is a partial view of the intersecting top or bottom frame members to show details of the arrange-ment, Figure 5 is a plan view of the intersecting frame members, Figure 6 is a fragmentary detail view showing the connection of the sliding side frame members and hinge arrangement of the trap unloading door with the enclosed net purposely omitted, Figure 7 is a top view of the brackets in line VII-VII Figure 6, and Figure 8 shows an entrance ring for the trap.
Referring to the drawings, a collapsible trap
2 having a frame 4 is enclosed by a net 6.
The frame 4 is constructed from frame members comprising metal rods interconnected to form a rectangular shape during use.
Referring to the plan view of Figure 1, it will be seen that a pair of side frame members 8 and 10 is pro-vided on one side of the trap whilst two further side frame members 12 and 14 are provided on the other side of the trap. A top frame member 16 forming part of the door of the trap, can also be seen in Figure 1.
At one end 18 the free end of a side frame mem-ber 10 is wrapped around side frame member 8, whilst at the other end 20 the free end of frame member 8 is wrapped aound frame member 10. Intermediate ends 18 and 20 frame member 10 is again wrapped around frame member 8, at 22 for strength also as shown in Figure 1. Thus, when the trap is in use, and in a non-collapsed operational posi-tion, the frame members are as shown in Figure 1 but when the trap is in a collapsed condition, for example, when stored, the frame members slide relative to each other until the ends 18 and 20 approach towards each other as shown partially in Figure 2. Similar frame members are located at each of the four side corners of the trap.
~n the top of the trap a pair of diagonal frame members 30 and 32 extend from corner to corner and at center, interconnected by a locking bolt 34 (Figures 1, 2 and 4). A nut 36 (Figure 4) threads on to bolt 34 and, in use, is held by a cotter pin 38 (Figures 4 and 7). A
similar arrangement of diagonal frame members is provided on the bottom of the trap.
In Figure 4, further details are shown of the interconnection of frame members utilizing bolt 34, nut 36 and cotter pins 38.
A door 40 is shown in Figure 6 and, in use, is held in place by an elastic band 42 constructed from rub-ber or some other suitable material. One end of the band 42 is removably connected by a hook or other means, to respective vertical frame members as shown in Figure 6.
A similar band 42 as described in Figure 6 is also used on the opposite side of the trap to give more rigidity to keep the trap open.
As shown in Figure 6 lower and upper brackets 50 are provided on both side to facilitate construction of a trap. These eight brackets are used for the connection ., ~rii'1~
of the sliding side frame members, such as 12 and 14 in Figures 1, 3 and 6. There are four pairs of such sliding frame members. As mentioned above, eaGh pair of sliding frame member is interconnected by loosely-turned loops, each at least two turns around each other at their ends.
One sliding side member has the two extra loops 22 in the middle of the rod for extra support when opening and closing the trap as in Figure 6. These loops should be loosely-formed around each other so that the two members can slide easily within each other. The brackets 50 are also used for the connection of the entrances and the end support ropes 52 54 56 and 58.
As will be apparent from the figures, four ropes 52 54 56 and 58, extend across the ends of the trap and the trap is enclosed by the net 6. The ropes are of nylon or of other suitable material and the net 6 can be of nylon, polyethene or other suitable material, preferably green or orange in color.
Two entrance openings 60 and 62 (Figures 1, 3 and 8) to the trap are provided, one at each end so that crustaceans or fish can enter the trap and be caught there-in. Removal is, of course, by way of door 40. It will, of course, be appreciated that sometimes only one entrance opening may be provided or a plurality of the said entrances and the size thereof will depend on the type of crustaceans or fish to be caught.
The elastic band 42 is fastended, for example, by a knot 64 to the vertical member of one of the diagonal frame member, as shown in Fi~ure 6. The other end of the elastic band has a hook member 66, as shown, which is hooked ~8~
around both vertical members of the diagonal frame members at the opposite end of the knotted end, the position of the hook thereby maintaining the trap in a collapsed position.
Furthermore, instead of the hook end being placed on the same side at the opposite end of the veritcal frame member as the knotted end, the hook end can be passed over to catch the corresponding frame member on the other side. The trap is thus locked in a collapsed position.
Also, instead of one end of the elastic member being knot-ted to a vertical frame member, a second hook can be sub-stituted at the end of the elastic member.
By a single motion of both hands, without too much resistance, the trap can be collapsed, the two sides moving towards each other as the ropes 52 54 56 and 58 collapse. At the same time, each sliding side frame member of a pair, for example 12 and 14, move to a first position~ Ends 18 and 20 move towards each other as the trap collapses.
When the trap is to be used, it is placed in a non-collapsible operation position by moving the two sides apart~ Due to the function of the diagonal frame members, 30 and 32, on the top and bottom of the trap, one rod of each pair moves to a second position. For example, side frame member 12 and 14 slide relative to each other so that the ends 18 and 20 move apart until they reach their respec-tive limits as shown in Figure 1. The hook end 66 of the elastic band 42 is moved to the other vertical member as shown in Figure 6. Thus an elastic pressure is applied to pull the two vertical frame members towards each other and ends 18 and 20 as shown in Figure 1 with the trap in a non-collapsed (open~ operational posi'ion. The elastic band 42 is therefore functioning as locking means for re-leasably maintaining the trap in an open position.
It will be appreciated that instead of providing bolts 34 and nuts 36 any suitable pivot means may be used.
For example, one diagonal frame member 30 may be bent to pivotally engage with a corresponding bend in the other diagonal frame member 32.
The entrances 60 and 62 as shown in Figure l,
The frame 4 is constructed from frame members comprising metal rods interconnected to form a rectangular shape during use.
Referring to the plan view of Figure 1, it will be seen that a pair of side frame members 8 and 10 is pro-vided on one side of the trap whilst two further side frame members 12 and 14 are provided on the other side of the trap. A top frame member 16 forming part of the door of the trap, can also be seen in Figure 1.
At one end 18 the free end of a side frame mem-ber 10 is wrapped around side frame member 8, whilst at the other end 20 the free end of frame member 8 is wrapped aound frame member 10. Intermediate ends 18 and 20 frame member 10 is again wrapped around frame member 8, at 22 for strength also as shown in Figure 1. Thus, when the trap is in use, and in a non-collapsed operational posi-tion, the frame members are as shown in Figure 1 but when the trap is in a collapsed condition, for example, when stored, the frame members slide relative to each other until the ends 18 and 20 approach towards each other as shown partially in Figure 2. Similar frame members are located at each of the four side corners of the trap.
~n the top of the trap a pair of diagonal frame members 30 and 32 extend from corner to corner and at center, interconnected by a locking bolt 34 (Figures 1, 2 and 4). A nut 36 (Figure 4) threads on to bolt 34 and, in use, is held by a cotter pin 38 (Figures 4 and 7). A
similar arrangement of diagonal frame members is provided on the bottom of the trap.
In Figure 4, further details are shown of the interconnection of frame members utilizing bolt 34, nut 36 and cotter pins 38.
A door 40 is shown in Figure 6 and, in use, is held in place by an elastic band 42 constructed from rub-ber or some other suitable material. One end of the band 42 is removably connected by a hook or other means, to respective vertical frame members as shown in Figure 6.
A similar band 42 as described in Figure 6 is also used on the opposite side of the trap to give more rigidity to keep the trap open.
As shown in Figure 6 lower and upper brackets 50 are provided on both side to facilitate construction of a trap. These eight brackets are used for the connection ., ~rii'1~
of the sliding side frame members, such as 12 and 14 in Figures 1, 3 and 6. There are four pairs of such sliding frame members. As mentioned above, eaGh pair of sliding frame member is interconnected by loosely-turned loops, each at least two turns around each other at their ends.
One sliding side member has the two extra loops 22 in the middle of the rod for extra support when opening and closing the trap as in Figure 6. These loops should be loosely-formed around each other so that the two members can slide easily within each other. The brackets 50 are also used for the connection of the entrances and the end support ropes 52 54 56 and 58.
As will be apparent from the figures, four ropes 52 54 56 and 58, extend across the ends of the trap and the trap is enclosed by the net 6. The ropes are of nylon or of other suitable material and the net 6 can be of nylon, polyethene or other suitable material, preferably green or orange in color.
Two entrance openings 60 and 62 (Figures 1, 3 and 8) to the trap are provided, one at each end so that crustaceans or fish can enter the trap and be caught there-in. Removal is, of course, by way of door 40. It will, of course, be appreciated that sometimes only one entrance opening may be provided or a plurality of the said entrances and the size thereof will depend on the type of crustaceans or fish to be caught.
The elastic band 42 is fastended, for example, by a knot 64 to the vertical member of one of the diagonal frame member, as shown in Fi~ure 6. The other end of the elastic band has a hook member 66, as shown, which is hooked ~8~
around both vertical members of the diagonal frame members at the opposite end of the knotted end, the position of the hook thereby maintaining the trap in a collapsed position.
Furthermore, instead of the hook end being placed on the same side at the opposite end of the veritcal frame member as the knotted end, the hook end can be passed over to catch the corresponding frame member on the other side. The trap is thus locked in a collapsed position.
Also, instead of one end of the elastic member being knot-ted to a vertical frame member, a second hook can be sub-stituted at the end of the elastic member.
By a single motion of both hands, without too much resistance, the trap can be collapsed, the two sides moving towards each other as the ropes 52 54 56 and 58 collapse. At the same time, each sliding side frame member of a pair, for example 12 and 14, move to a first position~ Ends 18 and 20 move towards each other as the trap collapses.
When the trap is to be used, it is placed in a non-collapsible operation position by moving the two sides apart~ Due to the function of the diagonal frame members, 30 and 32, on the top and bottom of the trap, one rod of each pair moves to a second position. For example, side frame member 12 and 14 slide relative to each other so that the ends 18 and 20 move apart until they reach their respec-tive limits as shown in Figure 1. The hook end 66 of the elastic band 42 is moved to the other vertical member as shown in Figure 6. Thus an elastic pressure is applied to pull the two vertical frame members towards each other and ends 18 and 20 as shown in Figure 1 with the trap in a non-collapsed (open~ operational posi'ion. The elastic band 42 is therefore functioning as locking means for re-leasably maintaining the trap in an open position.
It will be appreciated that instead of providing bolts 34 and nuts 36 any suitable pivot means may be used.
For example, one diagonal frame member 30 may be bent to pivotally engage with a corresponding bend in the other diagonal frame member 32.
The entrances 60 and 62 as shown in Figure l,
3 and 8, are held in the operating position by 2 or more elastic bands 68.
As will be appreciated, the trap described above represents a substantial advance in the art. In bad weather, previously constructed wood traps take a long time to get out of the water because they are bulky and very heavy.
The described embodiment makes the operation much faster since the traps can be made much lighter and they occupy considerably less space on deck of the fishing boat when in the collapsed position. Consequently, they can be placed into the water and hauled out more quickly and more easily. Furthermore, considerable saving in fuel is achiev-ed since the fishing boat can carry more than four times as many collapsible traps to the fishing grounds as wooden traps.
Since the described embodiment uses metal rods for sliding side members, as opposed to only rope, the net is given more support to prevent sagging, whilst the door is supported more securely to prevent its swinging open.
Some previous traps were constructed of aluminum flat bars and plastic which were rivetted together to form a non-collapsible trap which is obviously not as convenient asthe described collapsible trap.
As will be appreciated, the trap described above represents a substantial advance in the art. In bad weather, previously constructed wood traps take a long time to get out of the water because they are bulky and very heavy.
The described embodiment makes the operation much faster since the traps can be made much lighter and they occupy considerably less space on deck of the fishing boat when in the collapsed position. Consequently, they can be placed into the water and hauled out more quickly and more easily. Furthermore, considerable saving in fuel is achiev-ed since the fishing boat can carry more than four times as many collapsible traps to the fishing grounds as wooden traps.
Since the described embodiment uses metal rods for sliding side members, as opposed to only rope, the net is given more support to prevent sagging, whilst the door is supported more securely to prevent its swinging open.
Some previous traps were constructed of aluminum flat bars and plastic which were rivetted together to form a non-collapsible trap which is obviously not as convenient asthe described collapsible trap.
Claims (6)
1. A collapsible trap comprising a collapsible frame including a plurality of pairs of side members, each side member being slidable relative to the other side mem-ber of the same pair between a first position corresponding to a collapsed position of said frame, and a second position corresponding to a non-collapsed operational position of said frame, collapsible end members interconnecting the sides of the frame, a net supported by the frame when in non-collapsed operational position to provide enclosing walls, at least one of the enclosing walls having an entrance opening and locking means for releasably main-taining the trap in an open position.
2. A collapsible trap as defined in claim 1, in which end walls of the frame include an entrance opening enclosed by a rigid circular or rectangular frame.
3. A collapsible trap as defined in claim 1, in which a plurality of elastic members is provided extending between opposite entrance openings in opposite end walls of the net.
4. A collapsible trap as defined in claim 1, in which a central pivot is provided comprising a nut and bolt, the nut being locked by a cotter pin or similar device.
5. A collapsible trap as defined in claim 1, in which a central pivot is provided comprising a central rod passing through top and bottom of diagonal frame mem-bers, the said rod being threaded at both ends and locked in position by means of nuts.
6. A collapsible trap as defined in claim 1, in which a central pivot is provided comprising male and female rivets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA358,435A CA1110850A (en) | 1980-08-18 | 1980-08-18 | Collapsible trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA358,435A CA1110850A (en) | 1980-08-18 | 1980-08-18 | Collapsible trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1110850A true CA1110850A (en) | 1981-10-20 |
Family
ID=4117666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA358,435A Expired CA1110850A (en) | 1980-08-18 | 1980-08-18 | Collapsible trap |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1110850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064293A1 (en) * | 2004-12-13 | 2006-06-22 | Zdenko Jakus | Collapsible fishing trap |
| CN107801698A (en) * | 2017-12-18 | 2018-03-16 | 惠州卓诚友创实业有限公司 | New fishing net |
| US20210169056A1 (en) * | 2018-08-20 | 2021-06-10 | Erick Bendure | Aquatic trap |
-
1980
- 1980-08-18 CA CA358,435A patent/CA1110850A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064293A1 (en) * | 2004-12-13 | 2006-06-22 | Zdenko Jakus | Collapsible fishing trap |
| CN107801698A (en) * | 2017-12-18 | 2018-03-16 | 惠州卓诚友创实业有限公司 | New fishing net |
| US20210169056A1 (en) * | 2018-08-20 | 2021-06-10 | Erick Bendure | Aquatic trap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |