CA1218848A - Triggering mechanism for a head bail - Google Patents
Triggering mechanism for a head bailInfo
- Publication number
- CA1218848A CA1218848A CA000454402A CA454402A CA1218848A CA 1218848 A CA1218848 A CA 1218848A CA 000454402 A CA000454402 A CA 000454402A CA 454402 A CA454402 A CA 454402A CA 1218848 A CA1218848 A CA 1218848A
- Authority
- CA
- Canada
- Prior art keywords
- arms
- animal
- head
- shaft
- framework
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/06—Devices for fastening animals, e.g. halters, toggles, neck-bars or chain fastenings
- A01K1/062—Neck-bars, e.g. neck collars
Abstract
ABSTRACT
A Triggering Mechanism for a Head Bail A triggering mechanism (1) for a head bail (2) has an animal head engaging trigger arm (18) mounted on a rotatable shaft (16).
The shaft (16) has a downwardly depending catch (19) with a projection (33) which can engage in front of a wedge-shaped block (34) provided on one of the head bail arms (3) so as to retain the arms (3) in their open position against the bias of springs (5) until the shaft (16) is rotated on an animal's heat coming into engagement with the trigger arm (18.
A Triggering Mechanism for a Head Bail A triggering mechanism (1) for a head bail (2) has an animal head engaging trigger arm (18) mounted on a rotatable shaft (16).
The shaft (16) has a downwardly depending catch (19) with a projection (33) which can engage in front of a wedge-shaped block (34) provided on one of the head bail arms (3) so as to retain the arms (3) in their open position against the bias of springs (5) until the shaft (16) is rotated on an animal's heat coming into engagement with the trigger arm (18.
Description
- 1 1xl8848 A TRIGGERING MECHANISM FOR A HEAD BAIL
The present invention relates to an improved head bail and more particularly a new triggering mechanism therefore In our New Zealand patent specification No.
177789 there is disclosed an animal head bail having a I pair of neck engaging arms which are triggered into a ¦ closed position by the engagement of the trigger mechanism by the animal's brisket The use of the animal' 8 brisket or neck to trigger the head bail are the two alternatives used in ¦ head bails currently available in New Zealand.
While our head bail of specification 177789 operates effectively, it was desired to improve the j action of the triggering mechanism in making it more l 15 positive and also in making the bail suitable for cows and calves as well as cattle i.e. to make the triggering mechanism not require the animal to have a brisket.
Additionally it was desired to enable the triggering to be effected even if the animal tries to jump through the head bail and to avoid premature triggering by the foot or nose of the animal for example ~X1~8'18 It is thus an object of the present invention to provide a head bail having a triggering mechanism which will avoid or at least obviate the above disadvantages of head bail available at the present time.
Further objects of this invention will become apparent from the following description.
According to one aspect of the present invention there is thus provided in a head bail including a framework and a pair of animal neck engaging arms movable relative one with Tao other between open and closed positions, said arms having inner surfaces approximating the neck profile of the animal, said arms being pivotal mounted at the bottom end of a framework, with at least one of said arms biased towards said closed position, a triggering mechanism comprising a shaft rotatable mounted on said framework and having a catch means which engages with said one of said arms to hold same in said open position until released, an animal engaging means positioned in front of said framework and in a central position between said arms when in their open position so as to be engaged by the animal's head after it has entered between the open arms from the rear of said framework, said engaging means provided on, to move with, said rotatable shaft, said one of said arms includes on a front surface thereof a projection and said catch means comprises a projecting portion to engage in front of said projection to hold said one of said arms in said open position, whereby with said arms in their open position and said animal's head engaging with said engaging means, said shaft will rotate, moving said projecting portion from in lX18848 front of said projection enabling the bias on said one arm to bring said arms into said closed position about the animal's neck.
I.:
- 3 - ~8848 According to another aspect of this invention there it provided an animal head bail incorporating a , trigger mechanism as above defined Further aspects of this invention which should be considered in all its novel aspects, will become apparent from the following description given by way of example of a possible embodiment thereof and in which reference it made to the accompanying drawings Jo wherein;
; 10 FIGURE 1 shows diagrammatically, an animal -I
head bail incorporating a ;-~
triggering means according to one possible embodiment of the invention with said bail being in it open position;
FIGURE 2 shows the head bail of Figure 1 with the bail in its closed position;
FIGURE 3 ooze an enlarged view of one end of the trigger mechanism of the preceding Figures.
The present invention it particularly but not exclusively directed towards a head bail of the type described in our New Zealand patent specification No.
17778g. Accordingly whilst various features of this type of head bail will be described hereinafter, for a Jo :`~
':~
lZ~384~
- 4 - I.
detailed description thereof reference should be made I;
to our aforementioned specification. '-Thus, referring to the accompanying drawings ;-triggering mechanism referenced generally by arrow 1 is shown mounted on a head bail referenced generally by arrow 2, the latter being substantially the same as that described in our aforementioned patent specification 177789 except in that the brisket -triggering mechanism has now been omitted and replaced by the triggering mechanism of the prevent invention.
The head bail 2 it shown provided in known manner with a pair of arms 3 approximating on their inner surfaces 4 the neck profile of an animal and being biassed together by springs 5 on the front and back of ;`-the head bail (only the front spring 5 being shown) the arms 3 being pivoted together at a bottom end of the head bail on mounting plate 6.
At their upper ends the arms 3 are shown connected via a lever mechanism 7 one arm 8 of which 20 being pivoted at 9 at the top of the head bail 2. The ~-~
lever portion 10 is shown connected with a handle 11 associated with a paw 12 engage able with a ratchet 13.
Briefly describing the operation of such a head bail 2, once the arms 3 have been triggered from their open position shown in Figure 1 they will travel under the influence of springs 5 to toe closed position ..
''I
lX18848 shown in Figure 2 with the paw 12 riding over the ratchet 13 until the arms 3 have engaged with the animal's neck at which point the paw 12 will engage Jo in a tooth of the ratchet 13 to hold the arms 3 in the I;-closed position.
When the animal it required to be released, downward movement of the handle 11 will cause the lifting of the paw 12 against the bias of the spring 15 to enable the paw 12 to be moved backward over the ratchet 13 until, as described hereinafter, a catch will hold the arms 3 in the open position ready for the next triggering thereof. ¦
The triggering mechanism 1 it shown comprising a shaft 16 mounted on a transverse plate member 17.
Positioned substantially centrally of the shiftily is shown a trigger arm 18. Although shown as a solid substantially diamond-shape this could alternatively Jo be open and/or substantially circular, square, oblong Jo or the like. The arm 18 depend downwardly from the shaft 16 and it movable therewith. the trigger arm 18 it SO sized and positioned that it will engage the head of an animal placing it head between the open arms 3.
A catch means 19 shown in greater detail in Figure 3 is slid ably positioned on the shaft 16 80 that a projection 33 thereof engage with one of the arms 3 once the arms 3 have assumed a desired width of opening. Suitably the catch means 19, as shown, includes a hollow cylindrical portion which has an aperture 30 there through which can accommodate a locking bolt or pin 31 which can engage with an appropriate one of a plurality of apertures 32 provided through the shaft 16.
The shaft 16 it shown rotatable mounted on the plate 17 between mounting plates 20.
The projection 33 of the catch means 19 suitably engages with a projection 34 provided on the surface of the arm 3. The projection 34 is suitably a block of a wedge-~hape with a raised front edge AYE and a low rear edge 34B. The projection 33 of the catch means 19 suitably has a chamfered edge AYE to facilitate the projection 33 sliding over the projection 34 to enrage in front of the front edge AYE ;
in holding the arms 3 in the open position shown in \
Figure 1.
However, upon an animal I head engaging with the trigger arm 18 the shaft 16 will be caused to rotate lifting the catch means 19 and thus releasing the engaged arm 3 80 that both-arms 3 will then travel towards the closed position.
A handle 22 it shown provided at one end of the shaft 16 80 as to enable the trigger to be reset.
The handle 22 can be engaged within a ring 21 once the trigger arm 18 has been triggered so as to keep the trigger arm 18 away from the animal's head.
By the adjustment of the distance between the opened arms by the movement of the catch means 19 on the shaft 16, various sizes of animal can be accommodated.
It will be seen that as the triggering is effected after the animal's head hag been introduced 10 between the open arms 3, premature triggering by the t ¦ foot or nose of the animal before its head has been ¦ inserted into the opening cannot now take place.
Also a triggering does not rely on the animals brisket, cows and calves can be readily accommodated 15 thereby A stop snot shown) may be provided on the shaft 16 which will engage with the plate 17 when the trigger arm is in its correctly set position and this prevents the shaft 16 being rotated too far placing 20 the trigger arm 18 and catch 19 in an incorrect position.
The stop may suitably be a small projection which will engage beneath the lower edge of the plate 17 as the lever 22 it rotated moving the trigger arm 18 25 downwardly ~2i8848 It is envisaged that the trigger mechanism of the present invention may be incorporated in new head bails or fitted onto existing head bails such as those of the aforementioned New Zealand patent specification. It is emphasized that the basic head bail 2 as shown in the drawings is by way of example only. Other types could utilize the triggering ¦ mechanism of the present invention for example those ¦ types in which one arm is fixed and only the other arm 1 10 is biased for movement.
! Although this invention has been described by way of example and with reference to one possible embodiment thereof it is to be understood that modifications or improvement may be made thereto without departing from the scope of the invention as defined in the appended claims.
The present invention relates to an improved head bail and more particularly a new triggering mechanism therefore In our New Zealand patent specification No.
177789 there is disclosed an animal head bail having a I pair of neck engaging arms which are triggered into a ¦ closed position by the engagement of the trigger mechanism by the animal's brisket The use of the animal' 8 brisket or neck to trigger the head bail are the two alternatives used in ¦ head bails currently available in New Zealand.
While our head bail of specification 177789 operates effectively, it was desired to improve the j action of the triggering mechanism in making it more l 15 positive and also in making the bail suitable for cows and calves as well as cattle i.e. to make the triggering mechanism not require the animal to have a brisket.
Additionally it was desired to enable the triggering to be effected even if the animal tries to jump through the head bail and to avoid premature triggering by the foot or nose of the animal for example ~X1~8'18 It is thus an object of the present invention to provide a head bail having a triggering mechanism which will avoid or at least obviate the above disadvantages of head bail available at the present time.
Further objects of this invention will become apparent from the following description.
According to one aspect of the present invention there is thus provided in a head bail including a framework and a pair of animal neck engaging arms movable relative one with Tao other between open and closed positions, said arms having inner surfaces approximating the neck profile of the animal, said arms being pivotal mounted at the bottom end of a framework, with at least one of said arms biased towards said closed position, a triggering mechanism comprising a shaft rotatable mounted on said framework and having a catch means which engages with said one of said arms to hold same in said open position until released, an animal engaging means positioned in front of said framework and in a central position between said arms when in their open position so as to be engaged by the animal's head after it has entered between the open arms from the rear of said framework, said engaging means provided on, to move with, said rotatable shaft, said one of said arms includes on a front surface thereof a projection and said catch means comprises a projecting portion to engage in front of said projection to hold said one of said arms in said open position, whereby with said arms in their open position and said animal's head engaging with said engaging means, said shaft will rotate, moving said projecting portion from in lX18848 front of said projection enabling the bias on said one arm to bring said arms into said closed position about the animal's neck.
I.:
- 3 - ~8848 According to another aspect of this invention there it provided an animal head bail incorporating a , trigger mechanism as above defined Further aspects of this invention which should be considered in all its novel aspects, will become apparent from the following description given by way of example of a possible embodiment thereof and in which reference it made to the accompanying drawings Jo wherein;
; 10 FIGURE 1 shows diagrammatically, an animal -I
head bail incorporating a ;-~
triggering means according to one possible embodiment of the invention with said bail being in it open position;
FIGURE 2 shows the head bail of Figure 1 with the bail in its closed position;
FIGURE 3 ooze an enlarged view of one end of the trigger mechanism of the preceding Figures.
The present invention it particularly but not exclusively directed towards a head bail of the type described in our New Zealand patent specification No.
17778g. Accordingly whilst various features of this type of head bail will be described hereinafter, for a Jo :`~
':~
lZ~384~
- 4 - I.
detailed description thereof reference should be made I;
to our aforementioned specification. '-Thus, referring to the accompanying drawings ;-triggering mechanism referenced generally by arrow 1 is shown mounted on a head bail referenced generally by arrow 2, the latter being substantially the same as that described in our aforementioned patent specification 177789 except in that the brisket -triggering mechanism has now been omitted and replaced by the triggering mechanism of the prevent invention.
The head bail 2 it shown provided in known manner with a pair of arms 3 approximating on their inner surfaces 4 the neck profile of an animal and being biassed together by springs 5 on the front and back of ;`-the head bail (only the front spring 5 being shown) the arms 3 being pivoted together at a bottom end of the head bail on mounting plate 6.
At their upper ends the arms 3 are shown connected via a lever mechanism 7 one arm 8 of which 20 being pivoted at 9 at the top of the head bail 2. The ~-~
lever portion 10 is shown connected with a handle 11 associated with a paw 12 engage able with a ratchet 13.
Briefly describing the operation of such a head bail 2, once the arms 3 have been triggered from their open position shown in Figure 1 they will travel under the influence of springs 5 to toe closed position ..
''I
lX18848 shown in Figure 2 with the paw 12 riding over the ratchet 13 until the arms 3 have engaged with the animal's neck at which point the paw 12 will engage Jo in a tooth of the ratchet 13 to hold the arms 3 in the I;-closed position.
When the animal it required to be released, downward movement of the handle 11 will cause the lifting of the paw 12 against the bias of the spring 15 to enable the paw 12 to be moved backward over the ratchet 13 until, as described hereinafter, a catch will hold the arms 3 in the open position ready for the next triggering thereof. ¦
The triggering mechanism 1 it shown comprising a shaft 16 mounted on a transverse plate member 17.
Positioned substantially centrally of the shiftily is shown a trigger arm 18. Although shown as a solid substantially diamond-shape this could alternatively Jo be open and/or substantially circular, square, oblong Jo or the like. The arm 18 depend downwardly from the shaft 16 and it movable therewith. the trigger arm 18 it SO sized and positioned that it will engage the head of an animal placing it head between the open arms 3.
A catch means 19 shown in greater detail in Figure 3 is slid ably positioned on the shaft 16 80 that a projection 33 thereof engage with one of the arms 3 once the arms 3 have assumed a desired width of opening. Suitably the catch means 19, as shown, includes a hollow cylindrical portion which has an aperture 30 there through which can accommodate a locking bolt or pin 31 which can engage with an appropriate one of a plurality of apertures 32 provided through the shaft 16.
The shaft 16 it shown rotatable mounted on the plate 17 between mounting plates 20.
The projection 33 of the catch means 19 suitably engages with a projection 34 provided on the surface of the arm 3. The projection 34 is suitably a block of a wedge-~hape with a raised front edge AYE and a low rear edge 34B. The projection 33 of the catch means 19 suitably has a chamfered edge AYE to facilitate the projection 33 sliding over the projection 34 to enrage in front of the front edge AYE ;
in holding the arms 3 in the open position shown in \
Figure 1.
However, upon an animal I head engaging with the trigger arm 18 the shaft 16 will be caused to rotate lifting the catch means 19 and thus releasing the engaged arm 3 80 that both-arms 3 will then travel towards the closed position.
A handle 22 it shown provided at one end of the shaft 16 80 as to enable the trigger to be reset.
The handle 22 can be engaged within a ring 21 once the trigger arm 18 has been triggered so as to keep the trigger arm 18 away from the animal's head.
By the adjustment of the distance between the opened arms by the movement of the catch means 19 on the shaft 16, various sizes of animal can be accommodated.
It will be seen that as the triggering is effected after the animal's head hag been introduced 10 between the open arms 3, premature triggering by the t ¦ foot or nose of the animal before its head has been ¦ inserted into the opening cannot now take place.
Also a triggering does not rely on the animals brisket, cows and calves can be readily accommodated 15 thereby A stop snot shown) may be provided on the shaft 16 which will engage with the plate 17 when the trigger arm is in its correctly set position and this prevents the shaft 16 being rotated too far placing 20 the trigger arm 18 and catch 19 in an incorrect position.
The stop may suitably be a small projection which will engage beneath the lower edge of the plate 17 as the lever 22 it rotated moving the trigger arm 18 25 downwardly ~2i8848 It is envisaged that the trigger mechanism of the present invention may be incorporated in new head bails or fitted onto existing head bails such as those of the aforementioned New Zealand patent specification. It is emphasized that the basic head bail 2 as shown in the drawings is by way of example only. Other types could utilize the triggering ¦ mechanism of the present invention for example those ¦ types in which one arm is fixed and only the other arm 1 10 is biased for movement.
! Although this invention has been described by way of example and with reference to one possible embodiment thereof it is to be understood that modifications or improvement may be made thereto without departing from the scope of the invention as defined in the appended claims.
Claims (2)
PROPERTY OR PRIVILEGE IS ClAIMED ARE DEFINED AS FOLLOWS:
1. In a head bail including a framework and a pair of animal neck engaging arms movable relative one with the other between open and closed positions, said arms having inner surfaces approximating the neck profile of the animal, said arms being pivotal mounted at the bottom end of a framework, with at least one of said arms biased towards said closed position, a triggering mechanism comprising a shaft rotatable mounted on said framework and having a catch means which engages with said one of said arms to hold same in said open position until released, an animal engaging means positioned in front of said framework and in a central position between said arms when in their open position so as to be engaged by the animal's head after it has entered between the open arms from the rear of said framework, said engaging means provided on, to move with, said rotatable shaft, said one of said arms includes on a front surface thereof a projection and said catch means comprises a projecting portion to engage in front of said projection to hold said one of said arms in said open position, whereby with said arms in their open position and said animal's head engaging with said engaging means, said shaft will rotate, removing said projecting portion from in front of said projection enabling the bias on said one arm to bring said arms into said closed position about the animal's neck.
2. In a head bail a triggering mechanism according to claim 1 wherein said projecting portion is provided on a collar having a hollow cylindrical portion mounted on said shaft and securable at a desired position along the shaft in adjusting the separation of said arms when in their open position and said projection comprises a wedge-shaped block having a raised front edge which is engaged by said projecting portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ20429583A NZ204295A (en) | 1983-05-19 | 1983-05-19 | Triggering mechanism for head bail |
| NZ204295 | 1983-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1218848A true CA1218848A (en) | 1987-03-10 |
Family
ID=19920347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000454402A Expired CA1218848A (en) | 1983-05-19 | 1984-05-16 | Triggering mechanism for a head bail |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU571515B2 (en) |
| CA (1) | CA1218848A (en) |
| GB (1) | GB2141914B (en) |
| NZ (1) | NZ204295A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU728997B2 (en) * | 1996-07-23 | 2001-01-25 | David E. Rentsch | Animal holder |
| US7069688B2 (en) * | 2003-04-08 | 2006-07-04 | Daniel J. Hill | Animal trap |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3511216A (en) * | 1968-01-29 | 1970-05-12 | Elton L George | Animal work stanchions |
-
1983
- 1983-05-19 NZ NZ20429583A patent/NZ204295A/en unknown
-
1984
- 1984-05-09 AU AU27823/84A patent/AU571515B2/en not_active Expired
- 1984-05-11 GB GB08412066A patent/GB2141914B/en not_active Expired
- 1984-05-16 CA CA000454402A patent/CA1218848A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NZ204295A (en) | 1987-01-23 |
| GB2141914A (en) | 1985-01-09 |
| GB2141914B (en) | 1986-04-09 |
| AU2782384A (en) | 1984-11-22 |
| GB8412066D0 (en) | 1984-06-20 |
| AU571515B2 (en) | 1988-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |