CA2249732C - Hitch receiver/implement threaded fastening assembly - Google Patents
Hitch receiver/implement threaded fastening assembly Download PDFInfo
- Publication number
- CA2249732C CA2249732C CA 2249732 CA2249732A CA2249732C CA 2249732 C CA2249732 C CA 2249732C CA 2249732 CA2249732 CA 2249732 CA 2249732 A CA2249732 A CA 2249732A CA 2249732 C CA2249732 C CA 2249732C
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- Canada
- Prior art keywords
- implement
- frame
- nut
- hitch receiver
- pair
- 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 - Lifetime
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- 230000000295 complement effect Effects 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims abstract description 3
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 229940000425 combination drug Drugs 0.000 claims 1
- 239000002184 metal Substances 0.000 description 3
- 241001236644 Lavinia Species 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
- B60D1/50—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting resiliently mounted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
- B60D1/52—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting removably mounted
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
This invention relates to a novel hitch receiver/implement threaded fastening assembly. More particularly, this invention pertains to a novel device for securing in place an implement such as a tow bar, hitch, bicycle rack, and the like, in a hitch receiver mounted on a vehicle. The device replaces a conventional draw pin. A device for detachably securing an implement to a hitch receiver comprising a resilient elongated double "U"-shaped frame which at a first central location bends in a "U"-shape along a first plane, and the pair of arms of the frame at a pair of complementary second locations on the frame, bending in a pair of "U"-shapes in parallel along a second plane perpendicular to the first plane, a first nut secured within one of the arms of the second "U"-shape, and a second nut secured within the other of the arms of the second "U"-shape, the first and second nuts being spaced and aligned in parallel arrangement with one another.
Description
HITCH RECEIVER/IMPLEMENT THREADED
FASTENING ASSEMBLY
Field of the Invention This invention relates to a novel hitch receiver/implement threaded fastening assembly. More particularly, this invention pertains to a novel device for securing in place an implement such as a tow bar, hitch, bicycle rack, and the like, in a hitch receiver mounted on a vehicle. The device replaces a conventional draw pin.
Background of the Invention Permanent hitches with towing balls attached to the rear of a vehicle for connecting and pulling a trailer, or other implement carrying devices, have been known for many years. More recently, to avoid having the towing ball of the hitch protrude from the rear of the vehicle, it has become common practice to have a two-part hitch installed at the rear of the vehicle. The two-part hitch typically comprises a detachable implement carrying square tube which may or may not include a towing ball which fits into a permanent square tube hitch receiver secured to the vehicle. The implement carrying square tube is secured to the hitch receiver by a detachable draw pin, which holds the two parts together.
When not in use, the implement is detached from the hitch receiver by withdrawing the draw pin.
Prior methods of attaching implements such as tow bars, hitches, bicycle racks, and the like to hollow square hitch receivers have many disadvantages. When a conventional securing or draw pin is used, it is common for the holes in both the implement tube and the hitch receiver tube to become elongated over time due to frequent load yanking of the implement tube in the hitch receiver. This is caused by the constant starting and stopping of the towing vehicle, and the weight placed on the hitch. This constant yanking also causes slack and undesirable movement to develop between the square tube of the implement and the surrounding square tube of the hitch receiver. In an effort to reduce the slack and stabilize the implement, it is common practice to install a second apparatus such as a collar that may contain one or more bolts that are tightened against the outside of the square tube walls of the hitch receiver. Another alternative is to use a wedge-shaped device that is inserted between the walls of the square tube of the implement and the square tube of the hitch receiver.
Another problem with the conventional draw pin is that undesirable movement between the implement tube and hitch receiver transfers undesirable "play" to the in-tow vehicle, and in the case of any type of rack attached to the hitch receiver (i.e. bicycle rack), this movement is transferred to the rack and causes it to wobble. Stabilizing collars/wedges are commonly used to solve this problem.
Apart from the problems where the hitch receiver becomes stretched and the pin holes elongated, there is a security problem associated with the conventional draw pin. This is because the draw pin is easily removed and therefore makes an easy theft target. Locks for the draw pin have been developed, but these locks are subject to corrosion from road salt, and the elements, and hence become unworkable over time. Such locks are also easily broken or damaged, thereby rendering them ineffective.
Another common problem with conventional hollow square tube implement attachments and square hollow tube hitch receivers is that both tubes become concave on the sides if a single long bolt is used to fasten the two parts together. This happens when the single bolt is passed through the sidewalls of both the implement tube and the hitch receiver. The long bolt is secured with a nut which is tightened from one side only. The tightening of the single nut on the long bolt forces the sidewalls of both the receiver and implement tubes together. While such tightening will reduce slack and movement between the receiver tube and implement tubes, the irregular distorted concave shape caused by the walls of the two tubes being squeezed together, can cause considerable difficulty in attempting to separate the implement from the hitch receiver.
Summary of Invention The invention is directed to an insert device for removably securing in place the square tube of a detachable implement such as a tow bar, hitch, bicycle rack, or the like, in a larger size square tube receiver.
The device comprises two separate bolts and a double "U"-shaped spring metal framework, and replaces a conventional draw pin. The "spring-loaded" insert is constructed of a pair of complementary parallel and aligned nuts which are welded onto the double "U"-shape metal frame-work. To install, the insert is held from the open end, the two spring-loaded sides are held slightly together, and the insert is slid into the open end of the square implement tube. The insert device is inserted to the point where the pair of adjacent nuts are aligned with the two conven-tional pin holes that are located in the sidewalls of the square hitch receiver. When the two spring loaded sides are released, the resulting released tension of the framework against the interior walls of the square shaped implement tube holds the pair of nuts in place. The purpose of the metal framework of the insert device is to prevent the pair of nuts from turning when a complementary pair of bolts are screwed in from each side through the respective pin holes and are tightened into the pair of nuts. To connect the implement tube and the hitch receiver, the square shaped tube of the implement containing the insert is placed in the square tube of the hitch receiver, and the holes in the side of the sidewalk of the hitch receiver are aligned with the holes in the sidewalk of the implement. The two bolts are then inserted, one from each side, along with lock washers, and are tightened in the nuts to conventional tightness.
A device for detachably securing an implement to a hitch receiver comprising;
a) a resilient elongated double "U"-shaped frame which at a first central location bends in a "U"-shape along a first plane, and the pair of arms of the frame at a pair of complementary second locations on the frame, bending in a pair of "U"-shapes in parallel along a second plane perpendicular to the first plane;
b) a first nut secured within one of the arms of the second "U"-shape; and c) a second nut secured within the other of the arms of the second "U"-shape, the first and second nuts being spaced and aligned in parallel arrangement with one another.
Drawings The following drawings illustrates specific embodiments of the invention but are not to be construed as restricting or unduly limiting the spirit and scope of the overall invention.
FIG. 1 illustrates a side, partial section view of the securing device held inside the tube of an implement, which in turn is held within the tube of a hitch receiver.
FIG. 2 illustrates a section view taken along section lines A-A of FIG. 1.
FIG. 3 illustrates a section view taken along section lines B-B of FIG. 1.
FIG. 4 illustrates a side view of the securing device.
FIG. 5 illustrates a top view of the securing device.
FIG. 6 illustrates a front view of the securing device.
FIG. 7 illustrates a rear view of the securing device.
Detailed Description of Specific Embodiments of the Invention The invention is directed to a securing device for securing in place the square tube of any implement such as a tow bar, hitch, bicycle rack, or the like, in the larger rectangular tube of a conventional hitch receiver. The device eliminates the need to use a conventional securing or draw pin to secure the implement in the hitch receiver. The disadvantages inherent in connecting a conventional implement with a conventional hitch receiver using a conventional draw pin are eliminated by using the securing device. This device eliminates all movement in the hitch receiver, thereby eliminating the wobble in racking implements and reducing in-tow vehicle sway. The device eliminates the need for collars/wedges.
The draw pin is replaced by the securing device which is fitted inside the square tube of the implement. The securing device inside the square tube of the implement is secured to the square tube of the hitch receiver by utilizing a pair of bolts, one bolt inserted in each side of the sidewall of the hitch receiver, and tightened in the nuts of the securing device. By using the device of the invention, the walls of the implement tube and the hitch receiver are tightly cinched together and movement or slack is eliminated. The securing device thus prevents movement and attendant wear on the implement and the hitch receiver because the implement is held steady in position in the hitch receiver tube. The device eliminates the need for stabilizing collars and wedges.
Furthermore, theft is deterred because wrenches are required to remove the securing bolts. The sidewalk of the implement and the hitch receiver tubes do not become distorted or concave in shape because the implement and the hitch receiver are secured together by using a pair of bolts, one from each side, rather than a single bolt which threads from one side of the hitch receiver to the other and a single nut.
Referring to the drawings, FIG. 1 illustrates a side partial section view of the securing device 10 held in place in the interior of the implement tube 8 of the implement 6. The implement tube 6 in turn is held in place in the interior of a hitch receiver tube 4 of a hitch receiver tube 2. The device is constructed of a pair of nuts 12, 14 (only nut 12 is visible in FIG. 1) and a double "U"-shaped (only one "U" is shown on this plane) spring rod 16 with a curved nose 20 at one end. The nuts are welded in place within the arms of the securing device 10 by welds 18.
FIG. 2 illustrates a section view taken only section lines A-A
of FIG. 1. As seen in FIG. 2, the securing device 10 as seen in this plane, is constructed in the shape of a "U" with a pair of securing nuts 12, 14 located in the mid region of each parallel arm of the securing device 10. The pair of nuts 12, 14 are welded respectively to the pair of parallel arms of the spring rod framework of the securing device 10 by welds 18. As is also illustrated in FIG. 2, the pair of side bolt holes 5 of the outer hitch receiver tube 4 and the respective holes 7 of the inner implement tube 8, and the respective threaded holes in the pair of nuts 12, 14, are aligned so as to receive the threads and stems of a pair of securing bolts 9 with washers 11.
_g_ FIG. 3 illustrates a section view taken along section lines B-B of FIG.1. This figure clearly shows the square inner tube 8 held within the square outer tube 4. It also shows the securing device with the pair of parallel aligned nuts 12 and 14 aligned with the side bolt holes 5 and 7. The nuts 12 and 14 are held in place in the interior of the square tube 8 by the springs 16.
The base of the interior of the square inner tube 8 typically has a protruding flashing 15. The securing device has an upwardly curved nose 20 to avoid jamming against the flashing 15 when the securing device is inserted into the inner tube 8.
FIG. 4 illustrates a side view of the securing device, with "U"-shaped spring rod 16 and nut 12 welded by weld 18 to spring rod 16. The figure also illustrates the curved nose 20 which facilitates insertion of the securing device into the tube 8.
FIG. 5 illustrates a top view of the securing device, and the "U"-shaped spring rod 16 curved at nose 20. The pair of parallel aligned nuts 12 and 14 are held in the mid region of the parallel arms of the spring rod 16.
FIG. 6 illustrates a front view of the securing device with the pair of nuts 12 and 14 held in spaced, parallel, aligned orientation, within the arms of the double "U"-shaped spring rod 16 by welds 18.
FIG. 7 illustrates a rear view of the securing device. This figure in particular illustrates the parallel relationship between the two arms of the spring rod 16 and the aligned pair of nuts 12 and 14 held in the two arms of the spring rod 16.
As will be apparent to those skilled in the art in the light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.
FASTENING ASSEMBLY
Field of the Invention This invention relates to a novel hitch receiver/implement threaded fastening assembly. More particularly, this invention pertains to a novel device for securing in place an implement such as a tow bar, hitch, bicycle rack, and the like, in a hitch receiver mounted on a vehicle. The device replaces a conventional draw pin.
Background of the Invention Permanent hitches with towing balls attached to the rear of a vehicle for connecting and pulling a trailer, or other implement carrying devices, have been known for many years. More recently, to avoid having the towing ball of the hitch protrude from the rear of the vehicle, it has become common practice to have a two-part hitch installed at the rear of the vehicle. The two-part hitch typically comprises a detachable implement carrying square tube which may or may not include a towing ball which fits into a permanent square tube hitch receiver secured to the vehicle. The implement carrying square tube is secured to the hitch receiver by a detachable draw pin, which holds the two parts together.
When not in use, the implement is detached from the hitch receiver by withdrawing the draw pin.
Prior methods of attaching implements such as tow bars, hitches, bicycle racks, and the like to hollow square hitch receivers have many disadvantages. When a conventional securing or draw pin is used, it is common for the holes in both the implement tube and the hitch receiver tube to become elongated over time due to frequent load yanking of the implement tube in the hitch receiver. This is caused by the constant starting and stopping of the towing vehicle, and the weight placed on the hitch. This constant yanking also causes slack and undesirable movement to develop between the square tube of the implement and the surrounding square tube of the hitch receiver. In an effort to reduce the slack and stabilize the implement, it is common practice to install a second apparatus such as a collar that may contain one or more bolts that are tightened against the outside of the square tube walls of the hitch receiver. Another alternative is to use a wedge-shaped device that is inserted between the walls of the square tube of the implement and the square tube of the hitch receiver.
Another problem with the conventional draw pin is that undesirable movement between the implement tube and hitch receiver transfers undesirable "play" to the in-tow vehicle, and in the case of any type of rack attached to the hitch receiver (i.e. bicycle rack), this movement is transferred to the rack and causes it to wobble. Stabilizing collars/wedges are commonly used to solve this problem.
Apart from the problems where the hitch receiver becomes stretched and the pin holes elongated, there is a security problem associated with the conventional draw pin. This is because the draw pin is easily removed and therefore makes an easy theft target. Locks for the draw pin have been developed, but these locks are subject to corrosion from road salt, and the elements, and hence become unworkable over time. Such locks are also easily broken or damaged, thereby rendering them ineffective.
Another common problem with conventional hollow square tube implement attachments and square hollow tube hitch receivers is that both tubes become concave on the sides if a single long bolt is used to fasten the two parts together. This happens when the single bolt is passed through the sidewalls of both the implement tube and the hitch receiver. The long bolt is secured with a nut which is tightened from one side only. The tightening of the single nut on the long bolt forces the sidewalls of both the receiver and implement tubes together. While such tightening will reduce slack and movement between the receiver tube and implement tubes, the irregular distorted concave shape caused by the walls of the two tubes being squeezed together, can cause considerable difficulty in attempting to separate the implement from the hitch receiver.
Summary of Invention The invention is directed to an insert device for removably securing in place the square tube of a detachable implement such as a tow bar, hitch, bicycle rack, or the like, in a larger size square tube receiver.
The device comprises two separate bolts and a double "U"-shaped spring metal framework, and replaces a conventional draw pin. The "spring-loaded" insert is constructed of a pair of complementary parallel and aligned nuts which are welded onto the double "U"-shape metal frame-work. To install, the insert is held from the open end, the two spring-loaded sides are held slightly together, and the insert is slid into the open end of the square implement tube. The insert device is inserted to the point where the pair of adjacent nuts are aligned with the two conven-tional pin holes that are located in the sidewalls of the square hitch receiver. When the two spring loaded sides are released, the resulting released tension of the framework against the interior walls of the square shaped implement tube holds the pair of nuts in place. The purpose of the metal framework of the insert device is to prevent the pair of nuts from turning when a complementary pair of bolts are screwed in from each side through the respective pin holes and are tightened into the pair of nuts. To connect the implement tube and the hitch receiver, the square shaped tube of the implement containing the insert is placed in the square tube of the hitch receiver, and the holes in the side of the sidewalk of the hitch receiver are aligned with the holes in the sidewalk of the implement. The two bolts are then inserted, one from each side, along with lock washers, and are tightened in the nuts to conventional tightness.
A device for detachably securing an implement to a hitch receiver comprising;
a) a resilient elongated double "U"-shaped frame which at a first central location bends in a "U"-shape along a first plane, and the pair of arms of the frame at a pair of complementary second locations on the frame, bending in a pair of "U"-shapes in parallel along a second plane perpendicular to the first plane;
b) a first nut secured within one of the arms of the second "U"-shape; and c) a second nut secured within the other of the arms of the second "U"-shape, the first and second nuts being spaced and aligned in parallel arrangement with one another.
Drawings The following drawings illustrates specific embodiments of the invention but are not to be construed as restricting or unduly limiting the spirit and scope of the overall invention.
FIG. 1 illustrates a side, partial section view of the securing device held inside the tube of an implement, which in turn is held within the tube of a hitch receiver.
FIG. 2 illustrates a section view taken along section lines A-A of FIG. 1.
FIG. 3 illustrates a section view taken along section lines B-B of FIG. 1.
FIG. 4 illustrates a side view of the securing device.
FIG. 5 illustrates a top view of the securing device.
FIG. 6 illustrates a front view of the securing device.
FIG. 7 illustrates a rear view of the securing device.
Detailed Description of Specific Embodiments of the Invention The invention is directed to a securing device for securing in place the square tube of any implement such as a tow bar, hitch, bicycle rack, or the like, in the larger rectangular tube of a conventional hitch receiver. The device eliminates the need to use a conventional securing or draw pin to secure the implement in the hitch receiver. The disadvantages inherent in connecting a conventional implement with a conventional hitch receiver using a conventional draw pin are eliminated by using the securing device. This device eliminates all movement in the hitch receiver, thereby eliminating the wobble in racking implements and reducing in-tow vehicle sway. The device eliminates the need for collars/wedges.
The draw pin is replaced by the securing device which is fitted inside the square tube of the implement. The securing device inside the square tube of the implement is secured to the square tube of the hitch receiver by utilizing a pair of bolts, one bolt inserted in each side of the sidewall of the hitch receiver, and tightened in the nuts of the securing device. By using the device of the invention, the walls of the implement tube and the hitch receiver are tightly cinched together and movement or slack is eliminated. The securing device thus prevents movement and attendant wear on the implement and the hitch receiver because the implement is held steady in position in the hitch receiver tube. The device eliminates the need for stabilizing collars and wedges.
Furthermore, theft is deterred because wrenches are required to remove the securing bolts. The sidewalk of the implement and the hitch receiver tubes do not become distorted or concave in shape because the implement and the hitch receiver are secured together by using a pair of bolts, one from each side, rather than a single bolt which threads from one side of the hitch receiver to the other and a single nut.
Referring to the drawings, FIG. 1 illustrates a side partial section view of the securing device 10 held in place in the interior of the implement tube 8 of the implement 6. The implement tube 6 in turn is held in place in the interior of a hitch receiver tube 4 of a hitch receiver tube 2. The device is constructed of a pair of nuts 12, 14 (only nut 12 is visible in FIG. 1) and a double "U"-shaped (only one "U" is shown on this plane) spring rod 16 with a curved nose 20 at one end. The nuts are welded in place within the arms of the securing device 10 by welds 18.
FIG. 2 illustrates a section view taken only section lines A-A
of FIG. 1. As seen in FIG. 2, the securing device 10 as seen in this plane, is constructed in the shape of a "U" with a pair of securing nuts 12, 14 located in the mid region of each parallel arm of the securing device 10. The pair of nuts 12, 14 are welded respectively to the pair of parallel arms of the spring rod framework of the securing device 10 by welds 18. As is also illustrated in FIG. 2, the pair of side bolt holes 5 of the outer hitch receiver tube 4 and the respective holes 7 of the inner implement tube 8, and the respective threaded holes in the pair of nuts 12, 14, are aligned so as to receive the threads and stems of a pair of securing bolts 9 with washers 11.
_g_ FIG. 3 illustrates a section view taken along section lines B-B of FIG.1. This figure clearly shows the square inner tube 8 held within the square outer tube 4. It also shows the securing device with the pair of parallel aligned nuts 12 and 14 aligned with the side bolt holes 5 and 7. The nuts 12 and 14 are held in place in the interior of the square tube 8 by the springs 16.
The base of the interior of the square inner tube 8 typically has a protruding flashing 15. The securing device has an upwardly curved nose 20 to avoid jamming against the flashing 15 when the securing device is inserted into the inner tube 8.
FIG. 4 illustrates a side view of the securing device, with "U"-shaped spring rod 16 and nut 12 welded by weld 18 to spring rod 16. The figure also illustrates the curved nose 20 which facilitates insertion of the securing device into the tube 8.
FIG. 5 illustrates a top view of the securing device, and the "U"-shaped spring rod 16 curved at nose 20. The pair of parallel aligned nuts 12 and 14 are held in the mid region of the parallel arms of the spring rod 16.
FIG. 6 illustrates a front view of the securing device with the pair of nuts 12 and 14 held in spaced, parallel, aligned orientation, within the arms of the double "U"-shaped spring rod 16 by welds 18.
FIG. 7 illustrates a rear view of the securing device. This figure in particular illustrates the parallel relationship between the two arms of the spring rod 16 and the aligned pair of nuts 12 and 14 held in the two arms of the spring rod 16.
As will be apparent to those skilled in the art in the light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.
Claims (8)
1. A device for detachably securing an implement to a hitch receiver comprising;
a) a resilient elongated double "U"-shaped frame which at a first central location bends in a "U"-shape along a first plane, to form a pair of arms, the pair of arms at a pair of complementary second loca-tions on the frame bending in first and second "U"-shapes in parallel along a second plane perpendicular to the first plane;
b) a first nut secured within one of the arms of the second "U"-shape; and c) a second nut secured within the other of the arms of the second "U"-shape, the first and second nuts being spaced and aligned in parallel arrangement with one another.
a) a resilient elongated double "U"-shaped frame which at a first central location bends in a "U"-shape along a first plane, to form a pair of arms, the pair of arms at a pair of complementary second loca-tions on the frame bending in first and second "U"-shapes in parallel along a second plane perpendicular to the first plane;
b) a first nut secured within one of the arms of the second "U"-shape; and c) a second nut secured within the other of the arms of the second "U"-shape, the first and second nuts being spaced and aligned in parallel arrangement with one another.
2. A device as claimed in claim 1 including a first bolt and a second bolt threaded to mate respectively with the first nut and the second nut.
3. A device as claimed in claim 2 including first and second lock washers for the first and second nuts.
4. A device for removably securing opposite walls of an implement to adjacent opposite walls of a hitch receiver comprising:
(a) an elongated frame which fits within a hitch compatible implement, the elongated frame having a longitudinal axis;
(b) a first securing member comprising a first nut and bolt combi-nation, the first nut being secured to a first side of the frame, and oriented in a direction substantially perpendicular to the longitudinal axis, said first nut and bolt combination cinching only a first side of the frame and the implement with a first adjacent wall of a hitch receiver;
and (c) a second securing member comprising a second nut and bolt combination, the second nut being secured to a second side of the frame, separate from the first securing member and in opposing align-ment therewith, said second nut and bolt combination cinching only a second side of the frame and the implement with a second separate adjacent wall of the hitch receiver opposite to the first wall.
(a) an elongated frame which fits within a hitch compatible implement, the elongated frame having a longitudinal axis;
(b) a first securing member comprising a first nut and bolt combi-nation, the first nut being secured to a first side of the frame, and oriented in a direction substantially perpendicular to the longitudinal axis, said first nut and bolt combination cinching only a first side of the frame and the implement with a first adjacent wall of a hitch receiver;
and (c) a second securing member comprising a second nut and bolt combination, the second nut being secured to a second side of the frame, separate from the first securing member and in opposing align-ment therewith, said second nut and bolt combination cinching only a second side of the frame and the implement with a second separate adjacent wall of the hitch receiver opposite to the first wall.
5. A device as claimed in claim 4 wherein the first and second securing members are first and second nut and bolt combinations.
6. A device as claimed in claim 4 wherein the frame is shaped as a double "U"-shaped frame with arms which at a first central location bend in a "U"-shape along a first plane to form a pair of arms, the pair of arms at a pair of complementary second locations on the frame bend in a pair of "U"-shapes in parallel along a second plane perpendicular to the first plane.
7. A device as claimed in claim 4 wherein the first securing member exerts a compression force between the first side of the implement and the first adjacent wall of the hitch receiver to cinch the first side and the first adjacent wall together, and the second securing member exerts a compression force between the second side of the implement and the second adjacent wall of the hitch receiver to cinch the second side and the second adjacent wall together.
8. A device for removably securing an implement to a hitch receiver comprising:
(a) an elongated frame which removably fits within a hitch re-ceiver compatible implement having a square or rectangular cross-section, the elongated frame having a longitudinal axis;
(b) a first nut secured to a first side of the frame, and positioned to fit within the implement and oriented in a direction substantially perpendicular to the longitudinal axis, for securing in combination with a first bolt a first side of the implement and the frame with a first side of the hitch receiver; and (c) a second nut secured to a second separate side of the frame and positioned to fit within the implement and oriented in a direction substantially perpendicular to the longitudinal axis, for securing in combination with a second bolt a second side of the implement and the frame with a second side of the hitch receiver, said first and second sides of the frame and the implement and the first and second nut and bolt combinations being opposite to and aligned with one another.
(a) an elongated frame which removably fits within a hitch re-ceiver compatible implement having a square or rectangular cross-section, the elongated frame having a longitudinal axis;
(b) a first nut secured to a first side of the frame, and positioned to fit within the implement and oriented in a direction substantially perpendicular to the longitudinal axis, for securing in combination with a first bolt a first side of the implement and the frame with a first side of the hitch receiver; and (c) a second nut secured to a second separate side of the frame and positioned to fit within the implement and oriented in a direction substantially perpendicular to the longitudinal axis, for securing in combination with a second bolt a second side of the implement and the frame with a second side of the hitch receiver, said first and second sides of the frame and the implement and the first and second nut and bolt combinations being opposite to and aligned with one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2249732 CA2249732C (en) | 1998-10-07 | 1998-10-07 | Hitch receiver/implement threaded fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2249732 CA2249732C (en) | 1998-10-07 | 1998-10-07 | Hitch receiver/implement threaded fastening assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2249732A1 CA2249732A1 (en) | 2000-04-07 |
| CA2249732C true CA2249732C (en) | 2004-09-14 |
Family
ID=29425436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2249732 Expired - Lifetime CA2249732C (en) | 1998-10-07 | 1998-10-07 | Hitch receiver/implement threaded fastening assembly |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2249732C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109714928B (en) * | 2019-01-16 | 2023-06-13 | 重庆中车四方所科技有限公司 | Water-cooling heat dissipation power module based on bolted connection |
-
1998
- 1998-10-07 CA CA 2249732 patent/CA2249732C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2249732A1 (en) | 2000-04-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20181009 |