CA2107135A1 - Meat preparation machine - Google Patents
Meat preparation machineInfo
- Publication number
- CA2107135A1 CA2107135A1 CA002107135A CA2107135A CA2107135A1 CA 2107135 A1 CA2107135 A1 CA 2107135A1 CA 002107135 A CA002107135 A CA 002107135A CA 2107135 A CA2107135 A CA 2107135A CA 2107135 A1 CA2107135 A1 CA 2107135A1
- Authority
- CA
- Canada
- Prior art keywords
- meat
- press plate
- crankshaft
- plate
- machine 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
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C17/00—Other devices for processing meat or bones
- A22C17/02—Apparatus for holding meat or bones while cutting
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C9/00—Apparatus for tenderising meat, e.g. ham
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
ABSTRACT
A meat processing machine for tenderizing or flattening meat cuts has a meat supporting surface to support a cut of meat during operation of the machine and a press plate having teeth on the lower surface thereof for affecting tenderizing of or flattening the cut of meat, this plate extending parallel to and above the supporting surface. There are power means for reciprocating the press plate towards and away from the support surface. Plunger rods extend vertically on opposite sides of the supporting surface and are connected to the press plate. Guide housings guide the reciprocal movement of these rods.
There are two connecting rods located below the meat supporting surface and operatively connected to the bottom end of the plunger rods. A crankshaft is attached to the connecting rods and a motor rotates this crankshaft. There are also means for adjusting the position of the two connecting rods and the crankshaft and thereby adjusting the reciprocal movement of the press plate. The adjusting mechanism includes a moveable support member on which the crankshaft is rotatably mounted and a threaded adjusting rod connected at one end to a suitable fixed support.
A meat processing machine for tenderizing or flattening meat cuts has a meat supporting surface to support a cut of meat during operation of the machine and a press plate having teeth on the lower surface thereof for affecting tenderizing of or flattening the cut of meat, this plate extending parallel to and above the supporting surface. There are power means for reciprocating the press plate towards and away from the support surface. Plunger rods extend vertically on opposite sides of the supporting surface and are connected to the press plate. Guide housings guide the reciprocal movement of these rods.
There are two connecting rods located below the meat supporting surface and operatively connected to the bottom end of the plunger rods. A crankshaft is attached to the connecting rods and a motor rotates this crankshaft. There are also means for adjusting the position of the two connecting rods and the crankshaft and thereby adjusting the reciprocal movement of the press plate. The adjusting mechanism includes a moveable support member on which the crankshaft is rotatably mounted and a threaded adjusting rod connected at one end to a suitable fixed support.
Description
~ 7 ~ 3 ~
This invention relates to meat tenderizing machines and machines for flattening meat cuts.
It is known to tenderize meat by striking it repeatedly with a suitable hammer device, but if this operation is done manually, it is very tiring and tedious.
A number of machines have been developed for tenderizing meat cuts, many of which employ a series of knives which subject the meat to a number of small cuts in order to tenderize same. It is also known to employ a machine with a press plate that is reciprocated in order to strike the meat and tenderize same.
Recent U.S. Patent No. 5,035,672 which issued July 30, 1991 to the present applicant describes a meat tenderizing machine having a press plate with teeth on a lower surface thereof. This machine can also be used to flatten meat cuts. There is a motor and drive mechanism for reciprocating the press plate towards and away from a rlgid supporting surface. The reciprocating mechanism can be ad~usted in order to adjust the reciprocal movement of the press plate and thus, the distance between the lower surface of the press plate and the upper surface of the meat supporting surface when the press plate is in a fully lowered position. The~reciprocating mechanism includes a plunger that is connected to the press plate, a guide for this plunger, a rotatably mounted crankshaft and a single connecting rod pivotally connected to the crankshaft and the plunger.
Although the above meat tenderizing machine of the ~^ 2~07~3a applicant works satisfactorily, it does have disadvantages. ;
For example, the machine itself is rather large, bulky and ~ -has a substantial height and this could make it difficult to transport and handle. Also, because of its size, it can :~ . ,: :
be reasonably expensive to ship to purchasers and it requires a rather lar~e transport truck for this purpose.
.: :::;.: . , .:
Furthermore, the acljusting mechanism whereby the distance between the lower surface of the press plate and the meat `
.
supporting surface can be adiusted is fairly complex and i-;
thus expensive to make, both from the standpoint of materials used and the time required for manufacturing.
.; .: .
Finally, the rather large framework located above the ;
, . . . .
conveyor belt in this machine represents a substantial ~
obstruction to the view of the operator of the machine and ;`
:.: :. : : :
may make the machine more difficult to store when it ls not in use.
.,.. , . .:
The meat tenderizing machine described hereinafter can ~;
be made smaller and lighter than that described in applicant's U.S. Patent No. 5,035,672. Because the machine ;
is smaller, it can be more easily transported and can in fact be transported in a relatively small van rather than a large truck. The new machine projects upwardly only a -.. : .
short distance above the conveyor belt and thus, the view of the operator of the machine is unobstructed.
Furthermore, this machi.ne is constructed with a new mechanism for adjusting the downward movement of the press ~ ;
plate, a mechanism which is simpler and less expensive to make than that used in applicant's original machine : ' :
~''. ' ~";
: :.
210~13~ ~:
referred to above.
According to one aspect of the present invention, a meat processing machine comprises meat supporting means for supporting a cut of meat during operation of the machine, this supporting means having an upwardly facing supporting surface and a press plate having teeth on a lower surface thereof for effecting tenderization of or flattening the cut of meat. The press plate extends parallel to and above the supporting surface. There is a mechanism for reciprocating the press plate towards and away from the supporting surface. This mechanism includes plunger rods e~tending vertically on opposite sides of the supporting surface and connected to the press plate, guide housings to guide reclprocal movement of these rods, and a connectlng rod arrangement located below the meat supporting means and operatlvely connected to the bottom ends of the plunger rods. A crankshaft is attached to the connecting rod arrangement and a power source, such as a motor, is provided to rotate the crankshaft.
Preferably, the machine is equipped with a mechanlsm for ad~usting the positlon of the connectlng rod arrangement and the crankshaft and thereby the reciprocal movement of the press~plate in order that the distance between the lower surface of the press plate and the supporting surface when the press plate is in a fully lowered position is a desired distance.
According to another aspect of the invention, a meat , . . ......
processing machine includes meat supporting means for .~ '. . .'.': ' ', 2 1 ~ 7 ~ 3 ~
. . ~ .. :. .
. . , -, , supporting a cut of meat during operation of the machine, ~ -this support means having an upwardly facing supporting ~ ~ -surface, and a press plate having teeth on a lower surface thereof for a~fecting tenderizing of or flattening the cut 5 of meat. There are means for reciprocating the press plate - -towards and away from the support means, which means -include a crankshaft. A mechanism is provided for , -:~: . . .
adjusting the reciprocating means and thereby the ~ ~
::.: . : .:.
reciprocal movement of the press plate in order that the distance between the lower surface of the press plate and .... ,: :.
the supporting surface is a desired distance. The adjustlng mechanism includes a moveable support member on :. ., . ,:. ~
which the crankshaft is rotatably mounted, a threaded adjusting rod connected at one end to a suitable fixed support, an lnternally threaded annular member adjustably , . ~,, supportlng the support member and threadedly engaglng the ~ ~
.: .:
ad~ustlng rod, and means for rotatlng the annular member ln order to ad~ust the posltlon of the support member.
Preferably, the aforementloned support member ls a -plate that ls plvotally connected at one end to flxed supporting frame members and the annular member ls . , .. :
bevelled gear nut.
Further features and advantages will become apparent from the followlng detailed descrlptlon taken ln con~unction with the accompanying drawings.
In the drawings, Figure 1 is a side elevation of a meat tenderlzlng machine with a side panel of the machine shown only in part . . .
~" ': '. ''~,' ' ~i ~ r~
~ 2 ~ 0 7 1 3 ~
for purposes of i.llustration;
Figure 2 is an end elevation of a machine constructed in accordance with the invention with an end panel of the machine shown only in part again for purposes of illustration;
Figure 3 is a plan view of the meat tenderizing machine of Figure 1 with the conveyor belt and other parts of the machine shown only in part for ease to illustration;
Figure 4 is an elevational, transverse cross-section 10showing how the press plate is connected to the wrist pin of the reciprocating mechanism;
Figure 5 is a detail side view of the crank assembly for adjusting the height of the crankshaft and thus the downward movement of the press plate; and 15Figure 6 is a detail side view illustrating the bevel gear arrangement for raising or lowering the base plate on which the crankshaft is mounted.
A meat processing machine 10 constructed in accordance with the invention is shown in Figures 1 to 3 of 20the drawings. This machine includes meat supporting means indicated generally at 12 for supporting a cut of meat during operation of the machine, a press plate 14 which acts as.a tenderizing or flattening tool, and means for reciprocating the press plate towards and away from the 25support means 12. Preferably there are also means for adjusting the reciprocating means and thereby the reciprocal movement of the press plate. The reciprocating means are indicated generally at 16 and the adjusting means . ~ . - ~' ~', /, ~ ~10 7 ~ 3 ~
is indicated generally at 18.
The preferred meat supporting means includes a conveyor 20 whose upper surface can be used to support a number of cuts of meat which can be transported to a position below the press plate 14 during operation of the machine. The conveyor is mounted on a support stand which includes four vertical legs 22, each of which can have a roller or castor 24 mounted on the bottom thereof. The legs are connected together by two metal side plates 25 and two metal end plates 26, only parts of which are shown in the drawings for sake of illustration. Rigidly mounted at the top of the legs are two horizontal bed rails 28 which extend the length of the conveyor. These rails 28 are connected together by four connecting members 31.
Elongate, stainless steel end plates 29 join the ends of the rails together.
The conveyor 20 is made from a continuous strip of flexible material indlcated at 30. In a preferred embodiment, the material is type FNB8E sold by Habasit Canada Limited, a material suitable for use with food products that can be readily cleaned. The belt extends around two rotatable conveyor drums 32 and 34 mounted at opposite ends 4f the bed rails 28. In the illustrated machine, the conveyor drum 34 can be rotated manually by means of a hand wheel 36 which provides means for moving the belt 30 as required to transport the meat cuts. The shaft of each drum is mounted in two bearings 40 located at opposite ends of the respective drum. These bearings are ,: ., ,,' .:', ' ., ~ ~107~3a mounted on spacers 42.
Arranged immediately below a central section of the upper portion of the belt 30 is a platen or support plate 44 which provides support for the cut of meat being tenderized under the press plate. It is connected to the bed rails 28 by means of four connecting bolts 45 that extend through the four corners of the platen. Nuts 46 secure the platen to the bolts while spacer sleeves 48 support the platen from below. The bolts 45 extend through holes 50 formed in the top of the ad;acent bed rail, which holes are shown at the bottom of Figure 3.
Turning now to the construction of the reciprocating means, these means include two vertical plunger rods 52, each of which is connected to the centre of the press plate 14 at a respective side thereof. The plunger rod is attached to the press plate by means of a nut 53. Each plunger rod is reciprocal in a cylindrical guide houslng . , ~
54, As shown in Figure 4, in the guide housing there is a ''` ' . , .:..:
cylindrical bearing 56. In one embodiment this bearing is ',~
bearing No. 20 DU28 sold by Garlock having a dlameter of 1 ';'; ,, 1~4 inch and a length of 1.75 inch. Two of these bearings 'j, ',~;';, can be axially aligned to provide a total bearing length of '~
This invention relates to meat tenderizing machines and machines for flattening meat cuts.
It is known to tenderize meat by striking it repeatedly with a suitable hammer device, but if this operation is done manually, it is very tiring and tedious.
A number of machines have been developed for tenderizing meat cuts, many of which employ a series of knives which subject the meat to a number of small cuts in order to tenderize same. It is also known to employ a machine with a press plate that is reciprocated in order to strike the meat and tenderize same.
Recent U.S. Patent No. 5,035,672 which issued July 30, 1991 to the present applicant describes a meat tenderizing machine having a press plate with teeth on a lower surface thereof. This machine can also be used to flatten meat cuts. There is a motor and drive mechanism for reciprocating the press plate towards and away from a rlgid supporting surface. The reciprocating mechanism can be ad~usted in order to adjust the reciprocal movement of the press plate and thus, the distance between the lower surface of the press plate and the upper surface of the meat supporting surface when the press plate is in a fully lowered position. The~reciprocating mechanism includes a plunger that is connected to the press plate, a guide for this plunger, a rotatably mounted crankshaft and a single connecting rod pivotally connected to the crankshaft and the plunger.
Although the above meat tenderizing machine of the ~^ 2~07~3a applicant works satisfactorily, it does have disadvantages. ;
For example, the machine itself is rather large, bulky and ~ -has a substantial height and this could make it difficult to transport and handle. Also, because of its size, it can :~ . ,: :
be reasonably expensive to ship to purchasers and it requires a rather lar~e transport truck for this purpose.
.: :::;.: . , .:
Furthermore, the acljusting mechanism whereby the distance between the lower surface of the press plate and the meat `
.
supporting surface can be adiusted is fairly complex and i-;
thus expensive to make, both from the standpoint of materials used and the time required for manufacturing.
.; .: .
Finally, the rather large framework located above the ;
, . . . .
conveyor belt in this machine represents a substantial ~
obstruction to the view of the operator of the machine and ;`
:.: :. : : :
may make the machine more difficult to store when it ls not in use.
.,.. , . .:
The meat tenderizing machine described hereinafter can ~;
be made smaller and lighter than that described in applicant's U.S. Patent No. 5,035,672. Because the machine ;
is smaller, it can be more easily transported and can in fact be transported in a relatively small van rather than a large truck. The new machine projects upwardly only a -.. : .
short distance above the conveyor belt and thus, the view of the operator of the machine is unobstructed.
Furthermore, this machi.ne is constructed with a new mechanism for adjusting the downward movement of the press ~ ;
plate, a mechanism which is simpler and less expensive to make than that used in applicant's original machine : ' :
~''. ' ~";
: :.
210~13~ ~:
referred to above.
According to one aspect of the present invention, a meat processing machine comprises meat supporting means for supporting a cut of meat during operation of the machine, this supporting means having an upwardly facing supporting surface and a press plate having teeth on a lower surface thereof for effecting tenderization of or flattening the cut of meat. The press plate extends parallel to and above the supporting surface. There is a mechanism for reciprocating the press plate towards and away from the supporting surface. This mechanism includes plunger rods e~tending vertically on opposite sides of the supporting surface and connected to the press plate, guide housings to guide reclprocal movement of these rods, and a connectlng rod arrangement located below the meat supporting means and operatlvely connected to the bottom ends of the plunger rods. A crankshaft is attached to the connecting rod arrangement and a power source, such as a motor, is provided to rotate the crankshaft.
Preferably, the machine is equipped with a mechanlsm for ad~usting the positlon of the connectlng rod arrangement and the crankshaft and thereby the reciprocal movement of the press~plate in order that the distance between the lower surface of the press plate and the supporting surface when the press plate is in a fully lowered position is a desired distance.
According to another aspect of the invention, a meat , . . ......
processing machine includes meat supporting means for .~ '. . .'.': ' ', 2 1 ~ 7 ~ 3 ~
. . ~ .. :. .
. . , -, , supporting a cut of meat during operation of the machine, ~ -this support means having an upwardly facing supporting ~ ~ -surface, and a press plate having teeth on a lower surface thereof for a~fecting tenderizing of or flattening the cut 5 of meat. There are means for reciprocating the press plate - -towards and away from the support means, which means -include a crankshaft. A mechanism is provided for , -:~: . . .
adjusting the reciprocating means and thereby the ~ ~
::.: . : .:.
reciprocal movement of the press plate in order that the distance between the lower surface of the press plate and .... ,: :.
the supporting surface is a desired distance. The adjustlng mechanism includes a moveable support member on :. ., . ,:. ~
which the crankshaft is rotatably mounted, a threaded adjusting rod connected at one end to a suitable fixed support, an lnternally threaded annular member adjustably , . ~,, supportlng the support member and threadedly engaglng the ~ ~
.: .:
ad~ustlng rod, and means for rotatlng the annular member ln order to ad~ust the posltlon of the support member.
Preferably, the aforementloned support member ls a -plate that ls plvotally connected at one end to flxed supporting frame members and the annular member ls . , .. :
bevelled gear nut.
Further features and advantages will become apparent from the followlng detailed descrlptlon taken ln con~unction with the accompanying drawings.
In the drawings, Figure 1 is a side elevation of a meat tenderlzlng machine with a side panel of the machine shown only in part . . .
~" ': '. ''~,' ' ~i ~ r~
~ 2 ~ 0 7 1 3 ~
for purposes of i.llustration;
Figure 2 is an end elevation of a machine constructed in accordance with the invention with an end panel of the machine shown only in part again for purposes of illustration;
Figure 3 is a plan view of the meat tenderizing machine of Figure 1 with the conveyor belt and other parts of the machine shown only in part for ease to illustration;
Figure 4 is an elevational, transverse cross-section 10showing how the press plate is connected to the wrist pin of the reciprocating mechanism;
Figure 5 is a detail side view of the crank assembly for adjusting the height of the crankshaft and thus the downward movement of the press plate; and 15Figure 6 is a detail side view illustrating the bevel gear arrangement for raising or lowering the base plate on which the crankshaft is mounted.
A meat processing machine 10 constructed in accordance with the invention is shown in Figures 1 to 3 of 20the drawings. This machine includes meat supporting means indicated generally at 12 for supporting a cut of meat during operation of the machine, a press plate 14 which acts as.a tenderizing or flattening tool, and means for reciprocating the press plate towards and away from the 25support means 12. Preferably there are also means for adjusting the reciprocating means and thereby the reciprocal movement of the press plate. The reciprocating means are indicated generally at 16 and the adjusting means . ~ . - ~' ~', /, ~ ~10 7 ~ 3 ~
is indicated generally at 18.
The preferred meat supporting means includes a conveyor 20 whose upper surface can be used to support a number of cuts of meat which can be transported to a position below the press plate 14 during operation of the machine. The conveyor is mounted on a support stand which includes four vertical legs 22, each of which can have a roller or castor 24 mounted on the bottom thereof. The legs are connected together by two metal side plates 25 and two metal end plates 26, only parts of which are shown in the drawings for sake of illustration. Rigidly mounted at the top of the legs are two horizontal bed rails 28 which extend the length of the conveyor. These rails 28 are connected together by four connecting members 31.
Elongate, stainless steel end plates 29 join the ends of the rails together.
The conveyor 20 is made from a continuous strip of flexible material indlcated at 30. In a preferred embodiment, the material is type FNB8E sold by Habasit Canada Limited, a material suitable for use with food products that can be readily cleaned. The belt extends around two rotatable conveyor drums 32 and 34 mounted at opposite ends 4f the bed rails 28. In the illustrated machine, the conveyor drum 34 can be rotated manually by means of a hand wheel 36 which provides means for moving the belt 30 as required to transport the meat cuts. The shaft of each drum is mounted in two bearings 40 located at opposite ends of the respective drum. These bearings are ,: ., ,,' .:', ' ., ~ ~107~3a mounted on spacers 42.
Arranged immediately below a central section of the upper portion of the belt 30 is a platen or support plate 44 which provides support for the cut of meat being tenderized under the press plate. It is connected to the bed rails 28 by means of four connecting bolts 45 that extend through the four corners of the platen. Nuts 46 secure the platen to the bolts while spacer sleeves 48 support the platen from below. The bolts 45 extend through holes 50 formed in the top of the ad;acent bed rail, which holes are shown at the bottom of Figure 3.
Turning now to the construction of the reciprocating means, these means include two vertical plunger rods 52, each of which is connected to the centre of the press plate 14 at a respective side thereof. The plunger rod is attached to the press plate by means of a nut 53. Each plunger rod is reciprocal in a cylindrical guide houslng . , ~
54, As shown in Figure 4, in the guide housing there is a ''` ' . , .:..:
cylindrical bearing 56. In one embodiment this bearing is ',~
bearing No. 20 DU28 sold by Garlock having a dlameter of 1 ';'; ,, 1~4 inch and a length of 1.75 inch. Two of these bearings 'j, ',~;';, can be axially aligned to provide a total bearing length of '~
3 1/2 lnches., Each plunger rod,is connected to a gui,de rod ; ,',"
support 58 located below the bed rails 28. Nuts 60 are '~
threaded onto the bottom ends of the plungers to secure '~
same. Connected to the bottom of the support 58 are four ', ,~,, connecting lugs 62, each of which has a hole to receive a ,,'~
wrist pin 64. Extending between each pair of lugs and ~ "s,,, ~. :., " ~, ,:,, - 7 ',, ",;,,,' -''.",." ~':,'' ,:
2 t 0 713 a around the wrist pin is an oil impregnated powdered bronze bearing 66. In one embodiment, this bearing is Polymotion Model No. P77-10 having an inner diameter of 3/4 inch and a length of 1.25 inch. This bearing is located in a circular hole at the upper end of a connecting rod 68 of which there are two. The bottom end of each connecting rod is pivotally connected to a crank shaft 70 which is rotatably supported near each end by means of a pillow block 72. The two pillow blocks are rigidly connected to a base plate 74. A suitable pillow block spacer 76 joins each block to the plate 74.
Rotatably mounted on one end of the crankshank is a driven timing sprocket 78. A timing belt 80 extends around this sprocket and around a timing sprocket 82 (driver) which is connected to the output shaft of a gear reducer 86. This gear reducer is connected to an electrical motor 84 which, in one embodlment, is a one and a half horse-power motor. The motor is mounted on the gear reducer. A
suitable gear reducer is that made by Nord Gear Model SK02-80-S/4. The gear reducer ls mounted to a small mounting plate 88. The plate 88 is pivotally connected at one side by means of a pivot pin 90 that extends through connecting lugs 92 rigidly mounted on the bottom of the plate 74 and through two further connecting lugs 94 connected to the plate 88. Thus, i~ will be appreciated that the timing . - . . " ~
belt 80 is always kept tight since the weight of the motor and gear reducer is partially borne by the timing belt. .
The present machlne includes means for ad~usting the '', r~
21 0713~ ~
position of the connecting rods 68 and the crankshaft 70 and thereby the reciprocal movement of the press plate 14 in order that the distance between the lower surface of the press plate and the supporting surface 44 when the press plate is in a fully lower position is a desired dlstance.
In the preferred embodiment this adiusting mechanism includes the aforementioned baseplate 74 which can be pivoted and on which is rotatably mounted the crankshaft.
The adjusting mechanism further includes a threaded ad~usting rod 96 which is connected at an upper end thereof to a support structure 98. The rod 96, which is square threaded, is pivotally connected at the top by means of pin 100. An internally threaded bevel gear nut 102 is rotatably mounted on a side edge of the base plate 74 and threadedly engages the adjusting rod 96. The gear nut 102 . ,.-,,., , ~
is located ln a pivot plate 116 which is pivotally mounted by means of two pivot plns 122 to two bracket members 104 ., i .
whlch are fixedly attached to the top of the base plate. ;
The plate 116 is rectangular and has a circular hole 117 formed therein to accomodate the lower cylindrical .. , ~ , portion of the gear nut 102. The horizontal pivot pins 122 --have their central axis located to pass through the center of this hole 117 in plate 116. The gear nut 102 supports ;
the plate 116 (and thus the base plate 74) by means of a .
snap rlng 103 mounted in a groove formed at the bottom end of the gear nut. This snap ring has an outer diameter greater than the diameter of the hole in plate 116 and thus it must engage against the bottom of plate 116.
~ 0 713 ~
Figure 5 of the drawings provides details of a gear mechanism for rotating the internally threaded gear nut 102. This gear mechanism includes a bevel gear 106 which is mountable on a rotatable gear shaft 108. A set screw 110 is used to prevent rotation of the gear on the shaft.
The shaft 108 is free to rotate in an oil impregnated powered bronze bearing 112 which is mounted in a circular passageway in gear support member 114. The support 114 is attached by bolts to the pivot plate 116.
There are means for operatively connecting a rotatable hand wheel 124 to the gear shaft 108. This connectlng means includes a short shaft 126 which is slidable in à sleeve member 128. Connected to the sleeve member 128 is a universal joint member 130. In one embodiment this joint ls model No. UJ-5 of Windfred M. Burg. The universal joint is connected to handwheel shaft 132 which extends through the end plate and through the centre of bearing retainer 134. Mounted in this retainer is an oil impregnated powder bronze bearing 136. Connected to the shaft 126 is another universal ~oint 138 which is connected to a reduced end section 140 of the shaft 108. The inner end of thls unlversal ~oint rests against flat washer 142 which ln turn rests against an oilj impregnated powdered bronzel thrust washer 144. A similar thrust washer 146 is provided between the support 114 and the bevelled gear 106.
The base plate 74 is pivotally supported at the end opposite the adjusting rod 96 by means of two, vertically extending support members 150. Each of these members is 2~ 071 3~
pivotally connected by means of a support bar 152 that extends through two downwardly extending lugs 154 that are ~-connected to the bed rails.
It will be understood that the base plate 74 can be ., - . . .
pivoted about the support bar 152 by turning the hand wheel 124. This turning will cau~e the bevel gear 102 to be rotated on the adjusting rod 96 and thus to move upwardly or downwardly thereon.
The preferred form of press plate 14 is illustrated in Figure 2. In particular, a slightly smaller hammer plate 160 is removably mounted in a generally rectangular top . ~ . ,, , .. ~:.
plate 162. It is the hammer plate 160 which has a large number of teeth 164 formed on a lower surface thereof. It is these teeth which are used to tenderize the meat cuts.
lS The hammer plate is held in a recess formed in the top plate by means of a dovetail clamp bar 166 which can be held in place by suitable screws (not shown). Also shown in the drawings is a stainless steel cover 170 and this cover has a horlzontal top 172 and at least two opposite side walls 174 and 176 which are connected to the main supporting frame (which includes the bed rails 28) located below the conveyor belt. The top 172 extend~. completely over the prqs~ plate 14. If desired, the cover can also be provided with a suitably shaped end wall 178 at each end.
Another preferred feature of the illustrated machine is a discharge slide 180 at the output end of the conveyor.
This slide is connected to the end of the main frame by means of a holder 182.
" ' :.' 0 ~
At the input end of the conveyor are two adjusting knobs 184 which can be used to adjust the horizontal position of the adjacent conveyor roller 34. Each knob 184 is connected to a threaded adjusting rod 186 which extends through an internally threaded sleeve member 188 which is connected to the adjacent pillow block of the roller. ;
~:. . " ~ :
Because this machine is used to process food, most of ;~;
the metal parts are made from either stainless steel or -` :
anodized aluminum. , Preferably, two of the castors 24 are provided with i -brakes of standard construction so that the machine will not move when these brakes are applied. ~-It will be obvious to those skilled in this art that various modifications and changes can be made to the described meat preparing machine without departing from the splrit and scope of this invention. Accordingly, all such , ; t~
modlfications and changes as fall wlthin the scope of the ;
appended claims are intended to be part of this invention.
. ~, ',~.
' "
12 `'~
~.:
support 58 located below the bed rails 28. Nuts 60 are '~
threaded onto the bottom ends of the plungers to secure '~
same. Connected to the bottom of the support 58 are four ', ,~,, connecting lugs 62, each of which has a hole to receive a ,,'~
wrist pin 64. Extending between each pair of lugs and ~ "s,,, ~. :., " ~, ,:,, - 7 ',, ",;,,,' -''.",." ~':,'' ,:
2 t 0 713 a around the wrist pin is an oil impregnated powdered bronze bearing 66. In one embodiment, this bearing is Polymotion Model No. P77-10 having an inner diameter of 3/4 inch and a length of 1.25 inch. This bearing is located in a circular hole at the upper end of a connecting rod 68 of which there are two. The bottom end of each connecting rod is pivotally connected to a crank shaft 70 which is rotatably supported near each end by means of a pillow block 72. The two pillow blocks are rigidly connected to a base plate 74. A suitable pillow block spacer 76 joins each block to the plate 74.
Rotatably mounted on one end of the crankshank is a driven timing sprocket 78. A timing belt 80 extends around this sprocket and around a timing sprocket 82 (driver) which is connected to the output shaft of a gear reducer 86. This gear reducer is connected to an electrical motor 84 which, in one embodlment, is a one and a half horse-power motor. The motor is mounted on the gear reducer. A
suitable gear reducer is that made by Nord Gear Model SK02-80-S/4. The gear reducer ls mounted to a small mounting plate 88. The plate 88 is pivotally connected at one side by means of a pivot pin 90 that extends through connecting lugs 92 rigidly mounted on the bottom of the plate 74 and through two further connecting lugs 94 connected to the plate 88. Thus, i~ will be appreciated that the timing . - . . " ~
belt 80 is always kept tight since the weight of the motor and gear reducer is partially borne by the timing belt. .
The present machlne includes means for ad~usting the '', r~
21 0713~ ~
position of the connecting rods 68 and the crankshaft 70 and thereby the reciprocal movement of the press plate 14 in order that the distance between the lower surface of the press plate and the supporting surface 44 when the press plate is in a fully lower position is a desired dlstance.
In the preferred embodiment this adiusting mechanism includes the aforementioned baseplate 74 which can be pivoted and on which is rotatably mounted the crankshaft.
The adjusting mechanism further includes a threaded ad~usting rod 96 which is connected at an upper end thereof to a support structure 98. The rod 96, which is square threaded, is pivotally connected at the top by means of pin 100. An internally threaded bevel gear nut 102 is rotatably mounted on a side edge of the base plate 74 and threadedly engages the adjusting rod 96. The gear nut 102 . ,.-,,., , ~
is located ln a pivot plate 116 which is pivotally mounted by means of two pivot plns 122 to two bracket members 104 ., i .
whlch are fixedly attached to the top of the base plate. ;
The plate 116 is rectangular and has a circular hole 117 formed therein to accomodate the lower cylindrical .. , ~ , portion of the gear nut 102. The horizontal pivot pins 122 --have their central axis located to pass through the center of this hole 117 in plate 116. The gear nut 102 supports ;
the plate 116 (and thus the base plate 74) by means of a .
snap rlng 103 mounted in a groove formed at the bottom end of the gear nut. This snap ring has an outer diameter greater than the diameter of the hole in plate 116 and thus it must engage against the bottom of plate 116.
~ 0 713 ~
Figure 5 of the drawings provides details of a gear mechanism for rotating the internally threaded gear nut 102. This gear mechanism includes a bevel gear 106 which is mountable on a rotatable gear shaft 108. A set screw 110 is used to prevent rotation of the gear on the shaft.
The shaft 108 is free to rotate in an oil impregnated powered bronze bearing 112 which is mounted in a circular passageway in gear support member 114. The support 114 is attached by bolts to the pivot plate 116.
There are means for operatively connecting a rotatable hand wheel 124 to the gear shaft 108. This connectlng means includes a short shaft 126 which is slidable in à sleeve member 128. Connected to the sleeve member 128 is a universal joint member 130. In one embodiment this joint ls model No. UJ-5 of Windfred M. Burg. The universal joint is connected to handwheel shaft 132 which extends through the end plate and through the centre of bearing retainer 134. Mounted in this retainer is an oil impregnated powder bronze bearing 136. Connected to the shaft 126 is another universal ~oint 138 which is connected to a reduced end section 140 of the shaft 108. The inner end of thls unlversal ~oint rests against flat washer 142 which ln turn rests against an oilj impregnated powdered bronzel thrust washer 144. A similar thrust washer 146 is provided between the support 114 and the bevelled gear 106.
The base plate 74 is pivotally supported at the end opposite the adjusting rod 96 by means of two, vertically extending support members 150. Each of these members is 2~ 071 3~
pivotally connected by means of a support bar 152 that extends through two downwardly extending lugs 154 that are ~-connected to the bed rails.
It will be understood that the base plate 74 can be ., - . . .
pivoted about the support bar 152 by turning the hand wheel 124. This turning will cau~e the bevel gear 102 to be rotated on the adjusting rod 96 and thus to move upwardly or downwardly thereon.
The preferred form of press plate 14 is illustrated in Figure 2. In particular, a slightly smaller hammer plate 160 is removably mounted in a generally rectangular top . ~ . ,, , .. ~:.
plate 162. It is the hammer plate 160 which has a large number of teeth 164 formed on a lower surface thereof. It is these teeth which are used to tenderize the meat cuts.
lS The hammer plate is held in a recess formed in the top plate by means of a dovetail clamp bar 166 which can be held in place by suitable screws (not shown). Also shown in the drawings is a stainless steel cover 170 and this cover has a horlzontal top 172 and at least two opposite side walls 174 and 176 which are connected to the main supporting frame (which includes the bed rails 28) located below the conveyor belt. The top 172 extend~. completely over the prqs~ plate 14. If desired, the cover can also be provided with a suitably shaped end wall 178 at each end.
Another preferred feature of the illustrated machine is a discharge slide 180 at the output end of the conveyor.
This slide is connected to the end of the main frame by means of a holder 182.
" ' :.' 0 ~
At the input end of the conveyor are two adjusting knobs 184 which can be used to adjust the horizontal position of the adjacent conveyor roller 34. Each knob 184 is connected to a threaded adjusting rod 186 which extends through an internally threaded sleeve member 188 which is connected to the adjacent pillow block of the roller. ;
~:. . " ~ :
Because this machine is used to process food, most of ;~;
the metal parts are made from either stainless steel or -` :
anodized aluminum. , Preferably, two of the castors 24 are provided with i -brakes of standard construction so that the machine will not move when these brakes are applied. ~-It will be obvious to those skilled in this art that various modifications and changes can be made to the described meat preparing machine without departing from the splrit and scope of this invention. Accordingly, all such , ; t~
modlfications and changes as fall wlthin the scope of the ;
appended claims are intended to be part of this invention.
. ~, ',~.
' "
12 `'~
~.:
Claims (18)
1. A meat processing machine comprising:
meat support means for supporting a cut of meat during operation of the machine, said support means having an upwardly facing supporting surface;
a press plate having teeth on a lower surface thereof for affecting tenderization of or flattening the cut of meat, said plate extending parallel to and above said supporting surface; and means for reciprocating said press plate towards and away from said support means, said reciprocating means including plunger rods extending vertically on opposite sides of said supporting surface and connected to said press plate, guide housings to guide reciprocal movement of said rods, connecting rod means located below said meat supporting means and operatively connected to bottom ends of said plunger rods, a crankshaft attached to said connecting rod means, and power means for rotating said crankshaft.
meat support means for supporting a cut of meat during operation of the machine, said support means having an upwardly facing supporting surface;
a press plate having teeth on a lower surface thereof for affecting tenderization of or flattening the cut of meat, said plate extending parallel to and above said supporting surface; and means for reciprocating said press plate towards and away from said support means, said reciprocating means including plunger rods extending vertically on opposite sides of said supporting surface and connected to said press plate, guide housings to guide reciprocal movement of said rods, connecting rod means located below said meat supporting means and operatively connected to bottom ends of said plunger rods, a crankshaft attached to said connecting rod means, and power means for rotating said crankshaft.
2. A machine according to claim 1 including means for adjusting the position of said connecting rod means and said crankshaft and thereby the reciprocal movement of said press plate in order that the distance between said lower surface of said press plate and said supporting surface when the press plate is in a fully lowered position is a desired distance.
3. A machine according to claim 1 wherein there are two of said plunger rods rigidly connected to opposite side edges of said press plate and two of said guide housings.
4. A machine according to claim 1, 2 or 3 wherein said meat support means is a conveyor having a horizontally movable conveyor belt on which cuts of meat are placed for tenderization.
5. A machine according to claim 1, 2 or 3 wherein said connecting rod means comprise two vertically extending connecting rods pivotally connected to said crankshaft at their lower ends and pivotally connected at their upper ends to a wrist pin.
6. A machine according to claim 2 wherein said adjusting means includes a pivotable base plate on which said crankshaft is rotatably mounted, a threaded adjusting rod connected at an upper end thereof to a support structure, an internally threaded gear supporting a side edge of said base plate and threadedly engaging said adjusting rod, and a gear mechanism for rotating said internally threaded gear.
7. A machine according to claim 6 wherein said gear mechanism includes a bevel gear mounted on a rotatable gear shaft, a rotatable hand wheel, and means for operatively connecting said hand wheel to said gear shaft, and wherein said internally threaded gear is a bevel gear.
8. A machine according to claim 1, 2, or 3 including a cover having a top and at least two opposite sidewalls which are connected to a main supporting frame located below said meat supporting means, said top extending completely over said press plate.
9. A machine according to claim 2 wherein said adjusting means includes a pivotable base plate on which said crankshaft is rotatably mounted, said power means includes an electric motor and a gear reducer, and said motor and gear reducer are supported by and below said plate.
10. A machine according to claim 9 wherein said motor and gear reducer are connected to a motor mounting plate which is pivotally connected at one end thereof to said pivotable base plate.
11. A meat processing machine comprising:
meat support means for supporting a cut of meat during operation of the machine, said support means having an upwardly facing supporting surface;
a press plate having teeth on a lower surface thereof for effecting tenderization of or flattening the cut of meat, said plate extending parallel to and above said supporting surface; and means for reciprocating said press plate towards and away from said support means, said reciprocating means including a crankshaft, and means for adjusting said reciprocating means and thereby the reciprocal movement of said press plate in order that the distance between said lower surface of said press plate and said supporting surface when the press plate is in a fully lowered position is a desired distance, said adjusting means including a movable support member on which said crankshaft is rotatably mounted, a threaded adjusting rod connected at one end to a suitable fixed support, an internally threaded annular member adjustably supporting said support member and threadedly engaging said adjusting rod, and means for rotating said annular member in order to adjust the position of the support member.
meat support means for supporting a cut of meat during operation of the machine, said support means having an upwardly facing supporting surface;
a press plate having teeth on a lower surface thereof for effecting tenderization of or flattening the cut of meat, said plate extending parallel to and above said supporting surface; and means for reciprocating said press plate towards and away from said support means, said reciprocating means including a crankshaft, and means for adjusting said reciprocating means and thereby the reciprocal movement of said press plate in order that the distance between said lower surface of said press plate and said supporting surface when the press plate is in a fully lowered position is a desired distance, said adjusting means including a movable support member on which said crankshaft is rotatably mounted, a threaded adjusting rod connected at one end to a suitable fixed support, an internally threaded annular member adjustably supporting said support member and threadedly engaging said adjusting rod, and means for rotating said annular member in order to adjust the position of the support member.
12. A machine according to claim 11 wherein said support member is a plate that is pivotally connected at one end to fixed supporting frame members and said annular member is a bevel gear nut.
13. A machine according to claim 12 wherein said rotating means includes another bevel gear mounted on a rotatable gear shaft, a rotatable hand wheel, and shaft means for operatively connecting said hand wheel to said gear shaft.
14. A machine according to any one of claims 11, 12, or 13 wherein said reciprocating means includes vertical plunger rods located on opposite sides of said supporting surface and connected to said press plate, guides for slidably supporting and guiding said plunger rods, and two connecting rods located below said meat supporting means and rotatably connected to said crankshaft, said connecting rods being operatively connected to lower ends of said plunger rods in order to reciprocate said plunger rods.
15. A machine according to any one of claims 11, 12 or 13 wherein said adjusting rod extends generally vertically and has top and bottom end portions, said top end portion being pivotally connected to said suitable fixed support, and said annular member is arranged to support a pivoting plate connected by horizontal pivot pins to said movable support member.
16. A machine according to any one of claims 11, 12 or 13 wherein said reciprocating means includes an electric motor and a gear reducer operatively connected to said
17 motor and wherein said motor and gear reducer are supported by and below said movable support member.
18
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002107135A CA2107135A1 (en) | 1993-09-28 | 1993-09-28 | Meat preparation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002107135A CA2107135A1 (en) | 1993-09-28 | 1993-09-28 | Meat preparation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2107135A1 true CA2107135A1 (en) | 1995-03-29 |
Family
ID=4152372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002107135A Abandoned CA2107135A1 (en) | 1993-09-28 | 1993-09-28 | Meat preparation machine |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2107135A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108850101A (en) * | 2018-07-19 | 2018-11-23 | 高宏福 | A kind of beefsteak bone cutting-off mechanism |
-
1993
- 1993-09-28 CA CA002107135A patent/CA2107135A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108850101A (en) * | 2018-07-19 | 2018-11-23 | 高宏福 | A kind of beefsteak bone cutting-off mechanism |
| CN111387258A (en) * | 2018-07-19 | 2020-07-10 | 高宏福 | Cutting mechanism for beef ribs and using method |
| CN108850101B (en) * | 2018-07-19 | 2020-07-28 | 阳信县鑫源清真肉类有限公司 | Beef steak is with cutting off mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |