专利检索_ 车轮装置;转向;稳定性;车轮悬挂专利检索_ 车轮装置;转向;稳定性;车轮悬挂专利检索查询

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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
81	Steered trundle toy	US19075750	1950-10-18	US2647343A	1953-08-04	JULIO ZILERI ALBERTO LEOPOLDO; MICHEL FREUDENSTEIN

82	Sharp turn steering apparatus for vehicles	US10772449	1949-07-30	US2631045A	1953-03-10	MCELHINNEY ERIC M; PODHAJSKY THEODORE A

83	Steerable hand truck	US32547440	1940-03-22	US2235044A	1941-03-18	ADOLPH RONNING

84	Manually propelled vehicle	US20928338	1938-05-21	US2235041A	1941-03-18	ADOLPH RONNING

85	Steering mechanism	US16406937	1937-09-15	US2146467A	1939-02-07	DAVIS LOYD K

86	Dirigible truck	US7493036	1936-04-17	US2055747A	1936-09-29	GROVER LAUBE; COLBY STEVENS ROBERT; ALBERT KAUFMAN EDWIN

87	Industrial truck	US42641430	1930-02-06	US1823516A	1931-09-15	TOWSON SHELDON K

88	Coaster	US29323228	1928-07-16	US1722574A	1929-07-30	HOOD HUBERT L

89	Coaster wagon	US43156420	1920-12-18	US1502337A	1924-07-22	HASS CLARENCE E; JAMES WILLIAM R

90	Oscillating bob-knee for sleigh-runners	US36930420	1920-03-27	US1348347A	1920-08-03	RICHARD BURBRIDGE

91	Steerable hand truck	US962250	1997-10-31	US6039332A	2000-03-21	Jack L. Austin
A steerable hand truck having improved maneuverability. In a first embodiment of the invention, the steerable hand truck includes a sheathed steering cable which connects at a first end to a pair of pivotal handles and at a second end to a pair of pivotal axle spindles. In a second embodiment, the steering mechanism of the hand truck comprises a series of pivotally connected rigid links. A first link in the series is pivotally connected to the handles and a last link in the series is connected to the axle spindles. Pivotal movement of the handles is transmitted to the axle spindles through the links. In a third embodiment, the steering mechanism comprises an electric motor which is actuated by a control switch mounted to the truck. The motor is used to drive the axle spindles either to the right or left depending upon the direction selected with the control switch. In each embodiment, the load platform of the truck is provided with a pivot point about which the truck can be pivoted when in the upright position to allow the operator to more easily turn the truck in limited spaces.
92	Luggage truck	US282540	1994-07-29	US5403023A	1995-04-04	Cheng-Hsien Tsai
A luggage truck, including a base equipped with wheels in the corners at the bottom thereof and having a track and a slide moved along the track, a pull arm extended upward from the front end of the base, a handle coupled to the pull arm, an extension member connected between the handle and the slide, and two wheel holders pivotally mounted on the base at the bottom and bilaterally engaged with the slide to hold a respective wheel, wherein when the extension member is pulled out of the pull arm after the handle has been released from the pull arm, the slide is pulled forward causing the movable wheel holders to turn outwards and to extend out of two opposite sides of the base; when the extension member is pushed back inside the pull arm, the slide is moved back causing the movable wheel holders to turn inward and to be received inside the base at the bottom.
93	Detachable carrier for shopping carts	US120936	1993-09-14	US5366123A	1994-11-22	Clyde M. Range
A detachable carrier for shopping carts that include elevationally spaced horizontal top and bottom cart basket frame members, and a handle situated rearwardly of the basket. The carrier includes a carrier basket with first hook members extending forwardly of the front basket wall and elevationally spaced second hook members on the carrier basket. The second hook members are upwardly inclined, with hook throats opening rearwardly toward the carrier basket. Latch tubes on the second hook members are loosely mounted to the inclined shank sections of the second hook members and are retained on the second hook members to releasably latch and lock against the cart basket frame member, to safely secure the carrier to the cart. The latch tube members can be elevationally lifted to unlocked positions, thereby enabling release and removal of the carrier from the shopping cart. Bottom, first hook members cooperate with the top, second hook members to releasably secure the carrier to the cart.
94	Carrier with deployable center wheels	US25169	1993-03-02	US5348326A	1994-09-20	Eugene H. Fullenkamp; Richard H. Heimbrock; David Hensley; David W. Hornbach
A carrier for an object having castors at each corner and a steering system comprised of a fixed pair of spaced steering wheels deployable to contact the surface proximate the midpoint of the carrier. The pair of steering wheels are separated by a distance that improves tracking of the carrier and allows the carrier to more easily be turned around corners. A linkage is connected between a foot pedal and the pair of steering wheels; and the pair of steering wheels is moved into surface contact simultaneously with said castors contacting the surface by pressing the foot pedal.
95	Leg king pin system	US943629	1986-12-17	US4765769A	1988-08-23	Leonard T. Chapman
The present invention relates to an apparatus for mounting auxiliary components such as a seat, a camera platform or the like at or near the bearings which support the dolly or carriage wheels or articulated legs. The present includes at least one cap member and a receiving tube. Each cap member is arranged so as to transfer any force placed on the receiving tube directly onto the vehicle frame rather than the bearings associated with the leg king pin system. The cap members also serve to exclude contaminants from the bearing means of the leg king pin system. Rotation of the leg king pin driveshaft is not impeded by the receiving tube. One embodiment of the present invention also includes a groove in one of the cap members to permit the locking of the leg locking pin in the disengaged position.
96	Perambulator	US835536	1986-03-03	US4684148A	1987-08-04	Dieter Glaser
The invention relates to a perambulator having a collapsible frame and a hinged pushing handle for pushing the perambulator forwards or backwards. At least four wheels are mounted at lower portions of the frame. For achieving good curve negotiating properties and maneuverability of the perambulator in combination with its versatility, each of the four wheels is designed as a trailing caster mounted for swiveling about an upright axis and adapted to be locked in position by a respective locking member.
97	Steering mechanism for all season vehicle	US715205	1985-03-25	US4616724A	1986-10-14	Gary Lemke
An all seasons vehicle has a hydraulic control circuit that is used to make the vehicle highly maneuverable in which the rear treads are controllable through a speed control driving or controlling the speed of each of the hydraulic motors from a pair of hydraulic pumps connected to the motors in proportion to the position of a control element that is changed through the steering wheel of the vehicle. The control over the hydraulic motors may be increased or decreased by overriding the position of the control element and increasing the hydraulic flow of fluid to one motor or the other without interfering with the direction being imparted to the vehicle.
98	Multi-directional portable hand truck	US381356	1982-05-24	US4460189A	1984-07-17	Frederick Goff
A portable multi-directional hand truck A is illustrated including a frame 10 having a toe plate 14 and a pair of rear indexing wheel assemblies B. Indexing mechanism D is connected between the frame 10 and a contoured wheel C in each wheel assembly having a first position in which wheels C are aligned for forward movement and a second position for movement transverse to the forward movement. Wheels C include a contoured surface 54 for forward movement and a rounded contoured surface 56 for transverse movement. Surface 56 provides a rounded support surface over which the load may be broken and transported in which configuration the load is supported in a raised position for transporting long loads transversely down narrow passageways without dragging and sagging ends of a long load.
99	Steering apparatus for a trailer vehicle	US838644	1977-10-03	US4134601A	1979-01-16	Robert L. Propst
Steering apparatus for a trailer vehicle is disclosed providing preselected turning characteristics for the vehicle. A pair of wheel assemblies are mounted at the front of the vehicle and are each pivotal about an associated vertical axis. A tie member having a plate with a longitudinal slot formed therein extends between and connects the front wheel assemblies to provide for the simultaneous pivoting of the front wheel assemblies. A tow bar is pivotally connected to the vehicle between the front wheel assemblies and is provided with a pin that extends into the slot in the plate. During pivoting, the pin is displaced both transversely and longitudinally of the vehicle, but since the pin slides in the slot only the transverse component of displacement of the tow bar is transferred to the tie member. The steering apparatus operates to pivot the front wheel assemblies from the straight forward position through an increasing angle that decreases relative to the angle through which the tow bar is pivoted as the tow bar is pivoted from the straight forward position to an angled position.
100	Material handling apparatus	US672658	1976-04-01	US4052084A	1977-10-04	Robert L. Propst
A pallet supporting a plurality of containers in which small workpieces can be stored. The pallet consists of a base having supporting legs and an upright container supporting wall. Horizontally extending rails are arranged on the wall in vertically spaced pairs and the containers are slidably suspended on the rails so that they can readily be unloaded from the pallet. A security cover is provided which can be mounted on the pallet so as to enclose the containers supported thereon. The pallet of this invention is incorporated into a material handling system which includes a plurality of transport carts adapted to be hitched together for movement of a plurality of pallets between locations. Each transport cart is provided with spaced apart leg wells on which the pallet is placed and an access space is thereby provided beneath the base of the pallet to facilitate the placement and removal of the pallet on the transport cart.

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