IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0064033
(1987-06-17)
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우선권정보 |
CA-0511760 (1986-06-17) |
발명자
/ 주소 |
- MacDonald Nelson (1082 Route 271 St-Pierre-de-Broughton
- Qubec CAX G0N 1T0)
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인용정보 |
피인용 횟수 :
15 인용 특허 :
0 |
초록
▼
Trailer of the type which can be widened out or retracted when required, made of a frame on which there is mounted a wheel assembly. The frame comprises a traction bar, a rear transverse member fixedly mounted at one end of the traction bar, a front traction member which is parallel to the rear trac
Trailer of the type which can be widened out or retracted when required, made of a frame on which there is mounted a wheel assembly. The frame comprises a traction bar, a rear transverse member fixedly mounted at one end of the traction bar, a front traction member which is parallel to the rear traction member and is also fixedly mounted on the traction bar, along the latter, short of its opposed end. The portion of the traction bar between the front transverse member and the opposed end thereof constitutes a traction rod. A movable framework is disposed on both sides of the traction bar between the rear and front transverse members. The wheels of the trailer are mounted on the movable frameworks, which can laterally extend thereby widening out the trailer, or they can be retracted in the narrow position of the trailer. This trailer can easily be attached to a four- or three-wheeler of the sporting type and, when it is widened out, it can be used to carry the four- or three-wheelers. It is then merely necessary to attach it to a car or any other vehicle of the same type.
대표청구항
▼
Trailer of the type which can be widened out or retracted when required, comprising a frame structure on which a wheel assembly is mounted, said frame structure comprising a traction bar, a rear transverse member fixedly mounted at one end of said traction bar, a front transverse member which is par
Trailer of the type which can be widened out or retracted when required, comprising a frame structure on which a wheel assembly is mounted, said frame structure comprising a traction bar, a rear transverse member fixedly mounted at one end of said traction bar, a front transverse member which is parallel to said rear traction member and is fixedly mounted on said traction bar short of the opposite end of said traction bar, the portion of said traction bar between the front transverse member and said opposite end of said traction bar defining a traction rod, each of the rear and front transverse members being made of angle irons, a movable rectangular frame being slidably disposed on said front end rear transverse members, in said angle irons, on both sides of said traction bar, each rectangular frame having an internal lateral side, an external lateral side, a rear side and a front side, a freely rotatable rod mounted below said rear and front transverse members, one said freely rotatable rod being provided on each side of said traction bar and at an equal distance to the latter, two pinions fixedly mounted on each of said freely rotatable rods, the first pinion being mounted on said rod so as to be outside said rectangular frame, in adjacent position with respect to the rear side, the second pinion being also mounted on said rod inside said rectangular frame, adjacent said front side, a first rack being fixedly mounted along said front side, each said racks meshing with a respective pinion, a free end of each rod exceeding one of said transverse members, each free end being designed to receive a key capable of causing rotation of each rod and consequently extension or retraction of each frame, to widen out or retract said trailer.
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