RU2486882C2 - Brake for wheel of household stuff transfer trolley - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to household hardware and can be used in trade and medical equipment. Proposed brake comprises wheel with axle rotary or fixed support. Proposed brake is composed of U-shape clevis with opening for wheel axle, clevis retainer seats and openings for coiled contracted spring connected with said support. Said support has clevis retainer ledges and clevis turn limit ledge. Note also that clevis is furnished with ledge that doubles as pedal.

EFFECT: reliable braking, ease of use.

1 dwg

Description

The invention relates to household appliances and can be used on commercial, medical equipment.

A device is known "BRAKE WHEEL OF A MEDICAL CART". RU, Application No. 2004132026. A. IPC A61G 5/10 (2006.01).

The brake of the wheel of the medical cart contains a wheel, means for fixing the latter, an arm, a spring, grooves, characterized in that the profile grooves are made in two plates having pedals on both sides, mounted by means of axles on the beam and a rack connected to the bracket, while the profile grooves interact with the response hexagon of the wheel hub, and the beam has a means of fixing the positions of the spring, while the whole device is enclosed in a casing.

The disadvantage is the complexity of the design.

A device is known "WHEEL WITH A BRAKE OF A MEDICAL CART". Patent No. 2268697, C1, IPC A61G 5/10 (2006.01). Application: 2004129012/14, 01/10/2004.

The wheel with the brake of the medical cart contains a swivel or non-swivel bracket, a pedal with installation means and a protruding pedal lever with a leaf spring. When acting up, the pedal has a stroke of not more than 75 ° and the possibility of interaction with the bracket. The pedal lever and leaf spring form a clearance clearance of at least 1.5 mm (prototype).

The disadvantage is the complexity of the design.

A device is known "BRAKE WHEEL OF A MEDICAL CART". RU. Patent No. 2278652, C1, IPC A61G 5/10 (2006.01). Application: 2004132026/14, 10.25.2004.

The brake includes an arm, a spring and a locking means. The fixation tool is made in the form of plates with grooves and holes for tolerance of free play. Plates are located on both sides of the wheel. The pedals are placed on both sides of the plates, which are connected via axles to the beam and the strut. The rack is connected to the bracket. The grooves are made profile and have the ability to interact with the mating hexagons of the wheel hub. As a result, the brake does not contain parts difficult to manufacture and is easy to operate. Locking the wheel in a locked state is rigid and does not allow slippage.

The disadvantage is the complexity of the design.

The aim of the invention is the brake for the wheels of household trolleys, easy to manufacture.

The technical result (technical solution) is achieved by the fact that the brake is made in the form of a “U” -shaped bracket having a hole for the wheel axis, and nests for brackets of the bracket position, and an opening for a twisted compressed spring connected to the second end with a bracket, and on the bracket has protrusions of the stopper of the position of the bracket, and the protrusion of the rotation limit of the bracket, and on the bracket there is a protrusion - pedal.

The drawing shows "Brake for the wheels of the cart for the transport of household goods."

Statics

The brake for the wheel of the trolley for transportation of household goods contains a wheel (1) with an axis of rotation (2), a swivel or non-rotary bracket (3). The brake (4) is made in the form of a “U” -shaped bracket (5) having a hole (6) for the axle (2) of the wheel (1), a socket (7) for the position stoppers (8) of the bracket (5) and a hole (9 ) for a coiled compressed spring (10) connected to the second end (11) with the bracket (3), and on the bracket (3) there are protrusions (12) of the position stopper (8) of the bracket (5) and a protrusion of the rotation limit (13) of the bracket (5), and on the bracket (5) there is a ledge-pedal (14).

Work

When the protrusion-pedal (H) is pressed, the “P” -shaped bracket (5) turns down and moves to the protrusion of the rotation limit (13) of the bracket (3). In this case, the protrusions (12) of the position stopper (8) move apart the “U” -shaped bracket (5) and enter the nests (7) of the position stopper (8) of the bracket (5). The spring is extended (10). The wheel (1) is torn off the surface (15) and does not rotate. To remove it from the “stop” position, the trolley (16) is pressed to the surface and pushed forward with a force sufficient to overcome the sliding resistance with the protrusions of the position stop when turning the “U” -shaped bracket. In this case, the bracket (5) rotates and the wheel (1) reaches the surface. The bracket (5) becomes in its original position under the influence of compression of the spring (10). The width of the supporting surface (17) of the bracket (5) ensures the exclusion of spontaneous descent from the "stop" position.

The technical and economic result is higher than the prototype, because for the manufacture of the device you need only 2 new parts for existing wheels with brackets, which are produced in series.

Claims (1)

The brake for the wheel of the trolley for transportation of household goods contains a wheel with an axis of rotation, a swivel or non-rotary bracket, characterized in that the brake is made in the form of a “U” -shaped bracket having a hole for the wheel axis, nests for clamps for positioning the bracket and a hole for twisted compressed a spring connected by the second end to the bracket, and on the bracket there are protrusions of the position lock and a protrusion of the rotation limit of the bracket, and on the bracket there is a protrusion-pedal.