CA1105526A - Telescopic tailgate extension - Google Patents
Telescopic tailgate extensionInfo
- Publication number
- CA1105526A CA1105526A CA310,269A CA310269A CA1105526A CA 1105526 A CA1105526 A CA 1105526A CA 310269 A CA310269 A CA 310269A CA 1105526 A CA1105526 A CA 1105526A
- Authority
- CA
- Canada
- Prior art keywords
- tailgate
- extensible member
- assembly
- motor
- vehicle
- 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
Abstract
ABSTRACT OF THE DISCLOSURE
An extendible tailgate assembly for a load carrying vehicle has a tailgate pivotally mounted on the main frame of the vehicle and slidably supporting an extendible member arranged for reciprocating movement relative to the tailgate and increasing and decreasing the extent of the tailgate assembly. The extend-ible member is guided relative to the tailgate by a linkage which assures parallel movement of the extendible member relative to the tailgate.
An extendible tailgate assembly for a load carrying vehicle has a tailgate pivotally mounted on the main frame of the vehicle and slidably supporting an extendible member arranged for reciprocating movement relative to the tailgate and increasing and decreasing the extent of the tailgate assembly. The extend-ible member is guided relative to the tailgate by a linkage which assures parallel movement of the extendible member relative to the tailgate.
Description
llC~SSZ6 This invention relates generally to load carrying tailgates for semitrailers, and the like, and particularly to an extensible tailgate for use with equipment trailers.
It is frequently desirable to vary the length of a tailgate of a semitrailer of the type primarily intended for hauling heavy equipment so as to take advantage of local conditions and regulations affecting the overall length of the trailer. Typically, conventional tailgates are provided with a folding tailgate extension hinged to the main tailgate section which makes it necessary to raise the main tailgate above a level position in order to actuate the tailgate extension.
In addition to permitting the length of a trailer to be varied, tailgate extension are usually swingably mounted so as to selectively form a loading and unloading ramp for the trailer. If the load extends onto the tail~ate, the conventional style of gate does not readily ~ermit the extensible section to be unfolded from the main section since the main-tailgate section must be swung upwardly a~ainst the ~0 weight of the load. Examples of tailgates which selectively for~ loading ana unloading ramps by means of sections which fold relative to a main section of the tailgate can be found in U.S. Patent Nos: 2,727,781, dated Dece~ber 20, 1955, to A.R. D'Eath; ~,776,U63, issued January 1, 1957, to L.~. Larson; and 2,797,960, issued July 2, 1957, to L.J.
Endres, et al. These prior art tailgates, however, are intended to be arranged in a position blocking the rear of the load carrying area of the vehicle, and are not readily arrangeable in a substantially level loa~ carrying orientation.
It is generally ~nown to provide telesco~ically extensible ramps for facilitating Joadin~3 an~ unloadin~
vehicles, examples of which can be foun~ in l~.S. ~atell-t `~^
S52~
Nos: 460,196, issued September 29, 1891, to L.J. Chase;
and 2,611,466, issued September 23, 1952, to D.R. Biggert, et al. These telescopically adjustable ramps, however, are not intended for use as load carrying tailgates on equipment-hauling semi-trailers, or the like.
It is therefore, an object of the present invention to provide a load-carrying extensible tailgate assembly for equipment moving semitrailers, or the like, which may be extended without disturbing a load on the assembly.
It is another object of the present invention to provide an extensible tailgate assembly which per~its the length of an associated equipment moving semitrailer to be continuously varied over a predetermined range as conditions and regulations allow.
These and other objects are achieved according to the present invention by providing a tailgate assemkly operably associated with a vehicle, the assembly comprising:
tailgate means pivotally attached to the vehicle and heing selectivély movable into a load handling position, the position representing a lowered, substantially horizontal positioning of the tailgate means whereby access to an interior portion of the vehicle is facilitated; tailgate extension means slidably positioned within the tailgate means and being selectively extensible from the tailgate means so as to increase the extent of load handling sur~ace area afIorded hy the tailgate means when the tailgate means is in the load handling position; and first motor means operahle to selec-tively move the tail~ate extension means into and out of the tailgate means.
Figure 1 is a fragmentary top plan view showing an extensible tailgate assembly according to thc present inventio mountcd on the rear end o~ the main ~rame oF a semitrailer.
SS~6 Fiqure 2 is a fragmentary side elevational view, partly in section, showing the tailgate assembly of Fig. 1.
Figure 3 is an end elevational view looking from the right in Figs. 1 and 2.
Referring now to the figures of the drawings, an extensible tailgate assembly 10 according to the present invention is shown as pivotally mounte~ on load carrying vehicle 12, which may be a se~.itrailer such as conventionally employed for hauling heavy e~uipment, or the l ke. Assembly 10 includes a tailgate 14 connected to the main frame 16 of vehicle 12, and an extensible member 18 mounted on the tail-gate for reciprocating movement out of and into the tailgate so as to increase or decrease the longitudinal extent of assembly 14 relative to the main frame 16 of vehicle 12.
.Mounted on the tailgate 14 and connected to the extensible member 1~ for moving the same is an actuator arrangement 20.
- Arrangement 20 includes, for example, a hydraulically actuated linear motor 22 connected to the tailaate 14 as by a suitable bracket 24 and to the extensible member 18 as by bracket 26, such motor being utilizea for extending and retracting extensible member 18 relative to tailgate 14.
It will be appreciated that the pivotal mounting of the cylin-der and piston of motor 22 to the brac~ets 24 and Z6, respectively, will permit extensible member 18 to move in a aenerally planar path relative to tailgate 14. A guide assembly 28 is connected to tail~ate 1~ and extensible member 18 for guiding extensible member 18 along tracks 29 while member 18 is being extended and retracted out of and into tailgate 14.
Gui.de assembly 28 includes a linkage which comprises a pair of spaced, substantially para]lel linkaqe arms 30 and 32 pivotally attached to the extensi.ble memher 18, and a torque 3;~ .! i ilGSSZ~i member ~4 extencling laterally of tail~ate 14 and journaled in blocks 36 and 38 partially forming the tailgate 14. Cranks 40 and ~2 are affixed to toraue member 34 and are respectively pivotally attached to the linkaae ar~s 30 and 32 as by pins 44 and 46 in a conventioral ~anner, such that torque member 34 will force the linkage arms 30 and 32 to operate simul-taneously and keep the extensible member 18 in a parallel relationship to tailgate 14 during movement relative thereto.
Further, the motor 22 is disposed substantially midway between the linkage arms 30 and 32 so as to exert an even force on the linkage arms 30, 32 and additionally assure the proper movement of extensible member 18 relative to tail~ate 14.
Extensible member 1~ includes a pair of substantially parallel braces 48 and 50 disposed in slightly spaced relation-ship to one another midway between side walls of the extensible member 18, between which side walls and the braces 48, 50 extend further braces 52. Between the braces 48 and 50 is disposed a plate 54 to which hracket 26 is anchored. Thus, the braces 48 and 50 essentially form a channel in which the piston rod of motor 22 is received.
Extensible member 18 is covered with a suitable covering 56, such as a steel sheet or the like, with it being understood that tailgate 14 would be si~ilarly covered by a suitable covering (not shown).
A roller device, such as that designated 58, or other suitable guide, is advantageously disposed along lateral edges of extensible member 18, and mounted on the front end of tailgate 14, for still further assuring that extensible member 18 will slide in a predetermined manner relative to tailgate 14. In addition, the roller aevice 58, of which only one is shown althou~h it is to be understood two may be employed on each lateral side o~ the member 18, .,~
llC~SZ6 may also act as a friction reducing arrangement during sliding movement of extensible member 1~.
Tailgate 14 is pivotally mounted on the main frame 16 of vehicle 12 for swinging movement relative thereto.
A hinge pin 60 journaled in blocks 36 and 38, as well as bearing 62 and 64 provided in extensions of main frame 16, is advantageously employed for pivotally mounting tailgate 14 on the main frame 16 so as to assure that the tailgate will not pull loose from the frame of the vehicle. A
further motor 66 is connected to main frame 16 and tailgate 14 in a suitable manner for selectively swinging tailgate 14.
A generally wedge-sha~ed portion 68 is provided on the lower surface of tailgate 14 so as to form an abutment to pivotally receive, for example, the piston rod of motor 66 and permit the latter to selectively swing tailgate 14 about the generally horizontally disposed and laterally extending hinge pin 60. By such an arrangement, tailgate assembly 10 not only serves as a ramp for the loading and unloading of the vehicle 12, but will also permit the tailgate assembly 10 to carry, for example, a 20,000 pound evenly distributed load.
As can be readily understood from the above descrip-tion and from the drawings, an extensible tailgate assembly according to the present invention provides a simple, yet rugged and reliable, load carrying structure which permits the overall length o~ the associated vehicle to be varied as desired. Further, the tailgate assemblv can be readily employed as a loading and unloading ramp for the vehicle, with ~luid motors being utilized to actuate the e~tensihle member of the tailgate assembly, as well as to swing the tailgate assembly itself relative to the main frame of the vehicle.
..
. .
the vehicle. A further motor 66 is connected to main frame 16 and tailgate 14 in a suitable manner for selectively swinging tailgate 14. A generally wedge-shaped portion 68 is provided on the lower surface of tailgate 14 so as to form an abutment to pivotally receive the, for example, piston rod of motor 66 and permit the latter to selectively swing tailgate 14 about the generally horizontally disposed and laterally extending hinge pin 60. By such an arrangement, tailgate assembly 10 not only serves as a ramp for the loading and unloading of the vehicle 12, but will also permit the tailgate assembly 10 to carry a, for example, 20,000 pound evenly distributed load.
As can be readily understood from the above description and from the drawings, an extendible tailgate assembly according to the present invention provides a simple, yet rugged and reli-able, load carrying structure which permits the over-all length of the associated vehicle to be varied as desired without difiturb-ing a losd being carried on the tailgate assembly. Further, the tailgate assembly can be readily employed as a loading and unload-ing ramp for the vehicle, with the use of fluid motors to actuate the extendible member of the tailgate assembly, as well as to swing the tailgate assembly itself relative to the main frame of the vehicle, facilitating operation of the invention.
It is frequently desirable to vary the length of a tailgate of a semitrailer of the type primarily intended for hauling heavy equipment so as to take advantage of local conditions and regulations affecting the overall length of the trailer. Typically, conventional tailgates are provided with a folding tailgate extension hinged to the main tailgate section which makes it necessary to raise the main tailgate above a level position in order to actuate the tailgate extension.
In addition to permitting the length of a trailer to be varied, tailgate extension are usually swingably mounted so as to selectively form a loading and unloading ramp for the trailer. If the load extends onto the tail~ate, the conventional style of gate does not readily ~ermit the extensible section to be unfolded from the main section since the main-tailgate section must be swung upwardly a~ainst the ~0 weight of the load. Examples of tailgates which selectively for~ loading ana unloading ramps by means of sections which fold relative to a main section of the tailgate can be found in U.S. Patent Nos: 2,727,781, dated Dece~ber 20, 1955, to A.R. D'Eath; ~,776,U63, issued January 1, 1957, to L.~. Larson; and 2,797,960, issued July 2, 1957, to L.J.
Endres, et al. These prior art tailgates, however, are intended to be arranged in a position blocking the rear of the load carrying area of the vehicle, and are not readily arrangeable in a substantially level loa~ carrying orientation.
It is generally ~nown to provide telesco~ically extensible ramps for facilitating Joadin~3 an~ unloadin~
vehicles, examples of which can be foun~ in l~.S. ~atell-t `~^
S52~
Nos: 460,196, issued September 29, 1891, to L.J. Chase;
and 2,611,466, issued September 23, 1952, to D.R. Biggert, et al. These telescopically adjustable ramps, however, are not intended for use as load carrying tailgates on equipment-hauling semi-trailers, or the like.
It is therefore, an object of the present invention to provide a load-carrying extensible tailgate assembly for equipment moving semitrailers, or the like, which may be extended without disturbing a load on the assembly.
It is another object of the present invention to provide an extensible tailgate assembly which per~its the length of an associated equipment moving semitrailer to be continuously varied over a predetermined range as conditions and regulations allow.
These and other objects are achieved according to the present invention by providing a tailgate assemkly operably associated with a vehicle, the assembly comprising:
tailgate means pivotally attached to the vehicle and heing selectivély movable into a load handling position, the position representing a lowered, substantially horizontal positioning of the tailgate means whereby access to an interior portion of the vehicle is facilitated; tailgate extension means slidably positioned within the tailgate means and being selectively extensible from the tailgate means so as to increase the extent of load handling sur~ace area afIorded hy the tailgate means when the tailgate means is in the load handling position; and first motor means operahle to selec-tively move the tail~ate extension means into and out of the tailgate means.
Figure 1 is a fragmentary top plan view showing an extensible tailgate assembly according to thc present inventio mountcd on the rear end o~ the main ~rame oF a semitrailer.
SS~6 Fiqure 2 is a fragmentary side elevational view, partly in section, showing the tailgate assembly of Fig. 1.
Figure 3 is an end elevational view looking from the right in Figs. 1 and 2.
Referring now to the figures of the drawings, an extensible tailgate assembly 10 according to the present invention is shown as pivotally mounte~ on load carrying vehicle 12, which may be a se~.itrailer such as conventionally employed for hauling heavy e~uipment, or the l ke. Assembly 10 includes a tailgate 14 connected to the main frame 16 of vehicle 12, and an extensible member 18 mounted on the tail-gate for reciprocating movement out of and into the tailgate so as to increase or decrease the longitudinal extent of assembly 14 relative to the main frame 16 of vehicle 12.
.Mounted on the tailgate 14 and connected to the extensible member 1~ for moving the same is an actuator arrangement 20.
- Arrangement 20 includes, for example, a hydraulically actuated linear motor 22 connected to the tailaate 14 as by a suitable bracket 24 and to the extensible member 18 as by bracket 26, such motor being utilizea for extending and retracting extensible member 18 relative to tailgate 14.
It will be appreciated that the pivotal mounting of the cylin-der and piston of motor 22 to the brac~ets 24 and Z6, respectively, will permit extensible member 18 to move in a aenerally planar path relative to tailgate 14. A guide assembly 28 is connected to tail~ate 1~ and extensible member 18 for guiding extensible member 18 along tracks 29 while member 18 is being extended and retracted out of and into tailgate 14.
Gui.de assembly 28 includes a linkage which comprises a pair of spaced, substantially para]lel linkaqe arms 30 and 32 pivotally attached to the extensi.ble memher 18, and a torque 3;~ .! i ilGSSZ~i member ~4 extencling laterally of tail~ate 14 and journaled in blocks 36 and 38 partially forming the tailgate 14. Cranks 40 and ~2 are affixed to toraue member 34 and are respectively pivotally attached to the linkaae ar~s 30 and 32 as by pins 44 and 46 in a conventioral ~anner, such that torque member 34 will force the linkage arms 30 and 32 to operate simul-taneously and keep the extensible member 18 in a parallel relationship to tailgate 14 during movement relative thereto.
Further, the motor 22 is disposed substantially midway between the linkage arms 30 and 32 so as to exert an even force on the linkage arms 30, 32 and additionally assure the proper movement of extensible member 18 relative to tail~ate 14.
Extensible member 1~ includes a pair of substantially parallel braces 48 and 50 disposed in slightly spaced relation-ship to one another midway between side walls of the extensible member 18, between which side walls and the braces 48, 50 extend further braces 52. Between the braces 48 and 50 is disposed a plate 54 to which hracket 26 is anchored. Thus, the braces 48 and 50 essentially form a channel in which the piston rod of motor 22 is received.
Extensible member 18 is covered with a suitable covering 56, such as a steel sheet or the like, with it being understood that tailgate 14 would be si~ilarly covered by a suitable covering (not shown).
A roller device, such as that designated 58, or other suitable guide, is advantageously disposed along lateral edges of extensible member 18, and mounted on the front end of tailgate 14, for still further assuring that extensible member 18 will slide in a predetermined manner relative to tailgate 14. In addition, the roller aevice 58, of which only one is shown althou~h it is to be understood two may be employed on each lateral side o~ the member 18, .,~
llC~SZ6 may also act as a friction reducing arrangement during sliding movement of extensible member 1~.
Tailgate 14 is pivotally mounted on the main frame 16 of vehicle 12 for swinging movement relative thereto.
A hinge pin 60 journaled in blocks 36 and 38, as well as bearing 62 and 64 provided in extensions of main frame 16, is advantageously employed for pivotally mounting tailgate 14 on the main frame 16 so as to assure that the tailgate will not pull loose from the frame of the vehicle. A
further motor 66 is connected to main frame 16 and tailgate 14 in a suitable manner for selectively swinging tailgate 14.
A generally wedge-sha~ed portion 68 is provided on the lower surface of tailgate 14 so as to form an abutment to pivotally receive, for example, the piston rod of motor 66 and permit the latter to selectively swing tailgate 14 about the generally horizontally disposed and laterally extending hinge pin 60. By such an arrangement, tailgate assembly 10 not only serves as a ramp for the loading and unloading of the vehicle 12, but will also permit the tailgate assembly 10 to carry, for example, a 20,000 pound evenly distributed load.
As can be readily understood from the above descrip-tion and from the drawings, an extensible tailgate assembly according to the present invention provides a simple, yet rugged and reliable, load carrying structure which permits the overall length o~ the associated vehicle to be varied as desired. Further, the tailgate assemblv can be readily employed as a loading and unloading ramp for the vehicle, with ~luid motors being utilized to actuate the e~tensihle member of the tailgate assembly, as well as to swing the tailgate assembly itself relative to the main frame of the vehicle.
..
. .
the vehicle. A further motor 66 is connected to main frame 16 and tailgate 14 in a suitable manner for selectively swinging tailgate 14. A generally wedge-shaped portion 68 is provided on the lower surface of tailgate 14 so as to form an abutment to pivotally receive the, for example, piston rod of motor 66 and permit the latter to selectively swing tailgate 14 about the generally horizontally disposed and laterally extending hinge pin 60. By such an arrangement, tailgate assembly 10 not only serves as a ramp for the loading and unloading of the vehicle 12, but will also permit the tailgate assembly 10 to carry a, for example, 20,000 pound evenly distributed load.
As can be readily understood from the above description and from the drawings, an extendible tailgate assembly according to the present invention provides a simple, yet rugged and reli-able, load carrying structure which permits the over-all length of the associated vehicle to be varied as desired without difiturb-ing a losd being carried on the tailgate assembly. Further, the tailgate assembly can be readily employed as a loading and unload-ing ramp for the vehicle, with the use of fluid motors to actuate the extendible member of the tailgate assembly, as well as to swing the tailgate assembly itself relative to the main frame of the vehicle, facilitating operation of the invention.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A tailgate assembly operably associated with a vehicle, said assembly comprising:
tailgate means pivotally attached to said vehicle and being selectively movable into a load handling position, said position representing a lowered, substantially horizontal positioning of said tailgate means whereby access to an interior portion of said vehicle is facilitated;
tailgate extension means slidably positioned within said tailgate means and being selectively extensible from said tailgate means so as to increase the extent of load handling surface area afforded by said tailgate means when said tailgate means is in said load handling position;
and first motor means operable to selectively move said tailgate extension means into and out of said tailgate means.
tailgate means pivotally attached to said vehicle and being selectively movable into a load handling position, said position representing a lowered, substantially horizontal positioning of said tailgate means whereby access to an interior portion of said vehicle is facilitated;
tailgate extension means slidably positioned within said tailgate means and being selectively extensible from said tailgate means so as to increase the extent of load handling surface area afforded by said tailgate means when said tailgate means is in said load handling position;
and first motor means operable to selectively move said tailgate extension means into and out of said tailgate means.
2. The tailgate assembly as defined in claim 1, and further including second motor means operably attached between said vehicle and said tailgate means, said second motor means being operable to selectively raise and lower said tailgate means into and out of said load handling position.
3. The tailgate assembly as defined in claim 2, wherein said first motor means is operably attached between said tailgate means and said tailgate extension means, said first motor means being positioned within said tailgate means.
4. The tailgate assembly as defined in claim 3, wherein said first motor means is a hydraulic linear motor.
5. The tailgate assembly as defined in claim 4, wherein said second motor means is a hydraulic linear motor.
6. The tailgate assembly as defined in claim 5, wherein a plurality of linkage arms are positionable within said tailgate means to facilitate an even slidable movement of said tailgate extension means into and out of said tailgate means, said linkage arms being operably controlled by said first motor means.
7. An extensible tailgate assembly for a load carrying vehicle, comprising, in combination:
(a) a tailgate connected to a main frame of said load carrying vehicle;
(b) an extensible member mounted on the tailgate for reciprocating movement relative to the tailgate so as to vary the extent of said tailgate assembly; and (c) actuator means mounted on the tailgate and connected to the extensible member for moving said member relative to said tailgate, said actuator means including motor means connected to the tailgate and to the extensible member for extending and retracting the extensible member out of and into the tailgate, said tailgate forming a socket for receiving said extensible member, said motor means including a linear fluid motor disposed substantially midway between and extending parallel to linkage arms operable to move said extensible member into and out of said tailgate, and guide means connected to said tailgate and to said extensible member for guiding the extensible member while said member is being extended and retracted.
(a) a tailgate connected to a main frame of said load carrying vehicle;
(b) an extensible member mounted on the tailgate for reciprocating movement relative to the tailgate so as to vary the extent of said tailgate assembly; and (c) actuator means mounted on the tailgate and connected to the extensible member for moving said member relative to said tailgate, said actuator means including motor means connected to the tailgate and to the extensible member for extending and retracting the extensible member out of and into the tailgate, said tailgate forming a socket for receiving said extensible member, said motor means including a linear fluid motor disposed substantially midway between and extending parallel to linkage arms operable to move said extensible member into and out of said tailgate, and guide means connected to said tailgate and to said extensible member for guiding the extensible member while said member is being extended and retracted.
8. An extensible tailgate assembly for a load carrying vehicle, comprising, in combination:
(a) a tailgate connected to a main frame of said load carrying vehicle;
(b) an extensible member mounted on the tailgate for reciprocating movement relative to the tailgate for varying the extent of said tailgate assembly; and (c) actuator means mounted on the tailgate and connected to the extensible member for moving said member relative to said tailgate, said actuator means including (1) motor means connected to the tailgate and to the extensible member for extending and retracting the extensible member out of and into the tailgate, the tailgate forming a socket for receiving the extensible member, and (2) guide means connected to the tailgate and to the extensible member for guiding the extensible member while said member is being extended and retracted, said guide means including a linkage comprising a pair of spaced, sub-stantially parallel linkage arms pivotally attached to the extensible member, and a torque member extending laterally of the tailgate and pivotally mounted thereon, cranks affixed to the torque member and pivotally attached to the linkage arms, the torque member forcing the linkage arms to operate simultaneously and keeping the extensible member in parallel movement relative to said tailgate, said motor means including a linear fluid motor disposed substantially midway between and extending Parallel to said linkage arms.
9. A structure as defined in claim 8, and further including the tailgate being pivotally mounted on the main frame of said vehicle for swinging movement relative thereto, a hinge pin pivotally mounting the tailgate on the main frame
(a) a tailgate connected to a main frame of said load carrying vehicle;
(b) an extensible member mounted on the tailgate for reciprocating movement relative to the tailgate for varying the extent of said tailgate assembly; and (c) actuator means mounted on the tailgate and connected to the extensible member for moving said member relative to said tailgate, said actuator means including (1) motor means connected to the tailgate and to the extensible member for extending and retracting the extensible member out of and into the tailgate, the tailgate forming a socket for receiving the extensible member, and (2) guide means connected to the tailgate and to the extensible member for guiding the extensible member while said member is being extended and retracted, said guide means including a linkage comprising a pair of spaced, sub-stantially parallel linkage arms pivotally attached to the extensible member, and a torque member extending laterally of the tailgate and pivotally mounted thereon, cranks affixed to the torque member and pivotally attached to the linkage arms, the torque member forcing the linkage arms to operate simultaneously and keeping the extensible member in parallel movement relative to said tailgate, said motor means including a linear fluid motor disposed substantially midway between and extending Parallel to said linkage arms.
9. A structure as defined in claim 8, and further including the tailgate being pivotally mounted on the main frame of said vehicle for swinging movement relative thereto, a hinge pin pivotally mounting the tailgate on the main frame
claim 9 continued.
and permitting the tailgate to carry a load without pulling away from the main frame, and a further motor means connected to the main frame and to the tailgate for selectively swinging the tailgate relative to the main frame of the vehicle.
and permitting the tailgate to carry a load without pulling away from the main frame, and a further motor means connected to the main frame and to the tailgate for selectively swinging the tailgate relative to the main frame of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA310,269A CA1105526A (en) | 1978-08-29 | 1978-08-29 | Telescopic tailgate extension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA310,269A CA1105526A (en) | 1978-08-29 | 1978-08-29 | Telescopic tailgate extension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1105526A true CA1105526A (en) | 1981-07-21 |
Family
ID=4112234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA310,269A Expired CA1105526A (en) | 1978-08-29 | 1978-08-29 | Telescopic tailgate extension |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1105526A (en) |
-
1978
- 1978-08-29 CA CA310,269A patent/CA1105526A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |