SE1000746A1 - Procedure and example of embodiment of device for applying the method of automatically filling compressed air in a tire such as a car tire - Google Patents

Description

Description of the Device (3) To Patent Application No. 1000746-6 Respect Automatic pressure control in tires on wheels See Sketch 1 Overview of the fixed machine part (1) and the device (3).

A fixed non-rotating part is mounted on a machine e.g. a car's wheel suspension.

Called (1) On the part (1) there is a shaft (1,1).

A wheel (2) consisting of fa1g (2.1) and tires (2.2) is mounted on the axle (1.1). The wheel (2) is mounted and can rotate on the shaft (1.1). The device (3) is mounted in the wheel (2)'s rim (2,1) The device (3) is mounted so that it is integrated in the rim (2.1) either as prefabricated, separate unit or integrated in the rim construction from the beginning.

The device is mounted in such a way that it does not come on during the rotation of the wheel (2) contact with any part of (1) or other fixed part of the machine. Preferably placed the device (3) outside the possible brake shoes mounted on (1), has the function of via a brake disc, or drum connected to the rim (2) has the function of braking the wheel rotation.

Sketch 1 The device (3) is characterized in that a so-called inner ring (3.1) is fixed in Wheel (2) rim (2.1) It is also characteristic that in the holes (3.1.4) on the inner ring (3.1) there are 1-5 valve bodies (3 .3) mounted together with non-return valves required for the function (3,4) and pressure reducing valve (3.5) A locking arm (4) Component list Inner ring (3.1) sketch 2 Movable / lockable cam disc (32) with ball bearing (3.2.l) Sketch 4 Valve bodies (3.3) Check valves (3.4) Pressure reducing valve (3 .5) Locking arm (4) Solenoid (4.4) fl QPWßí- "NT" Also included Pressure springs (3..3..2) Dust protection (3.6) Screw penetrations (2.1.2) Component description The inner ring (3.1) Sketch 2 has 5 continuous relief holes (3.1.1). Another one not continuous recess is available (3.1.2) This recess has additional functions.

In the 5 "spokes" (3.1.3) formed through the relief holes (3.1.1) there is a hole drilled from (3.1) s periphery to the relief recessßl.2) These holes are called (3.1.4).

From the relief holes (3.1.1) another hole (3.1.5) enters the holes (3.1 .4). Thereby a channel between the holes (3.l.4) and the relief holes (3.1.1) In the center of the inner ring (3.1) there is a hole (3.1.6) surrounded by a collar (3.1.7) with a height corresponding to the thickness of the inner ring plus 2 mm ..

Movable lockable cam disc (3.2) sketch 4 The cam disc consists of a circular disc with a clock center offset hole1 (3.2.l) In the hole (3.2. 1) is a ball bearing (3 ..2..2) Valve body (3.3) consists of a cylinder with a diameter that fits snugly in the hole (3.l.4) The valve body has a spherical end (3.3.1) The female guard (3.6) The outer diameter of the guard is equal to the Irmer ring and fits into the rim (2.1) Locking arm (4) This consists of a locking arm (4,1) The locking arm is provided at its outer end with a elevation (4.3) and a shaft (4,2) which is attached to the movable core of the solenoid (4.4) Wheels (2) In the wheel rim (2.1) Drill 5 holes (2.3) from the surface (2.1.1) on the rim (2.1) that is the smallest the diameter of the pressurized volume of the tire (2.2). The holes (2.3) are drilled in the middle of the holes (3. 1 .4) on the inner ring (3. 1).

Mounting 1. In the holes 3.1.4 on the inner ring, the non-return valves (3.4) are mounted from the periphery of (3.1) In this way, compressed air can pass from the hole (3.1 .4) to the space (2.2) in the tire to be pressurized. Air can not go from the tire (2.2) to the holes (3.l.4) 2. Then insert the pressure fi springs (3.3.2) and the valve bodies (3.3) into the same hole. (3.l.4) See sketch 3 3. The cam disc (3.2) with the needle bearing (3.2.1) Sketch 4 4. Mount the core disc on the collar of the inner ring (3.1.7) For this assembly, it is advisable to use an annular mounting tool Which holds the valve bodies in the holes (3.1.4) 5. Then mount the screw bushings (3,7) through the holes (2.1.1) drilled in the rim (2.1) into the holes (3.l.4) The device 3 is thereby fixed to the rim (2.1) and seals simultaneously against leakage of compressed air between (2.2) and the atmosphere. A pressure reducing valve (3.5) is mounted in a hole (2.1 3) which is drilled from the rim (2.l) s surface (2.1.2) into one of the relief holes (3.l.1) 7. on the shaft (1.1) mount the sleeve (4.1) with solenoid (4) and locking arm (4) Sketch 5 The casing cover (3.6) is fitted around the inner ring (3.1.7) and clamped against it. Feature In the initial position, the wheel (2) is stationary.

The locking arm (4) locks the cam disc (3.2) via a lug on the locking arm (4.2) and the solenoid (4.4) In relation to the fixed part (1) When the wheel (2) with the inner disc (3.1) starts to rotate, one after the other comes off the valve bodies (3.3) to be pressed in towards their bottom position (3.3.2) by the stationary cam disc (3.2). To be pushed out to an external position later during the rotation of the wheel. (333) of the pressure capers (3.1. 1). a valve body (33) is in position (3.3.2.) firms passage between the atmosphere and the holes of the inner plate (3.l) (3. l .4) via the holes (3.1.5) and the darnm protection (3.6) When the valve body moves between its outer positions, the following occurs.

When the valve body (3.3) under the rotation of the wheel (2) is pressed inwards by the cam disc (3 .2) against position (3.3.2) the valve body (3.3) will cover the hole (3.1.5) and seal against it.

During the continued movement of the valve body (3.3) towards position (3.3.2), the trapped the air in the hole (3. 1.4). When the pressure in the pipe (3.l.4) exceeds the pressure in the tire (2.2), it is pressed compressed the air through the non-return valve (3.4) into the tire.

When predetermined air pressure in the tire is reached opens a reduction valve (3.5_) which is mounted in the rim (2.1) in such a way that the reduction valve (3.5) inlet end opens into the pressurized space of the tire (2.2).

The function is repeated continuously as long as the wheel rotates.

To reduce wear on valve bodies and other moving parts, power can be connected solenoids (4.4) the solenoid then lifts the locking arm (4) from the cam disc (3.2).

The cam disc will now be free and the mounting on the fixed part (1) will stop. Thereby they can 5 the valve bodies (3.3) which press against the periphery of the cam disc (3.2) cause it to follow the rotation of the wheel (2). This stops the pump function.

Power supply to the solenoid (4.4) can be done by drilling a through hole in the shaft (1.l) For power line to, e.g. a car's electrical system.

This opens up the possibility of including equipment for maneuvering the solenoid from one instrument panel.

Alternatively, power supply to the solenoid (4.4) can be provided by a generator such as a dynamo mounted on the fixed part (1) in such a way that the drive of the generator's drive wheels is brought to rotate by pressing the drive wheel against the inner diameter of the collar (3.2.x) on cam disc (3.2) This design is suitable for wheels with larger dimensions e.g. car wheels etc. For wheels with dimensions such as bicycles etc., the device (C3) is characterized by One / fl era Valve pipe (C3 .1) En Kamskíva (C3 .2) One / fl era valve body (C33) A non-return valve (C3 .4) Pressure spring (C3.3.2) Reduction valve (C3 .5) Previously described Inner ring (3.l) is replaced with one or more Valve pipes (C3.1). With a through hole (C3.1.4) pipe / one is mounted with the end (C3 .l. 1) against the rim (C2) inner diameter (C.2.2) in such a way that the tube / s seals against the rim. From the outside of the rim (C2.1.1) Mounted in the holes of the pipes (C3.1) (C314) First a Valve body (C3.3) a Then a compression spring (C3.3.2) Followed by a non-return valve (C3.4). The valve body (3.3) is designed as follows. so that The compression spring (C3.3.2) presses the valve body (C3.3) against the other end of the pipe (C312) which is turn the mother rim of the rim (C2.1). The valve body (C3.3) is prevented from being completely pushed out The hole (C3.l.4) by a bearing on the valve body (C3.3) stopping against a lock nut (C3.1.) which is mounted on the end of the pipe (C3.1.1) (C3.l.2). From the outside of the pipe (C3.1.1) there is one ventilation hole (C3.1.5) which opens a channel between the atmosphere and the hole (C314).

The previously described core disc (3.2) is replaced with another type of disc (C3.2) which mounted on a fixed part (C1) e.g. on the fork of a bicycle wheel.

This cam which is fixed in the direction of rotation of the wheel can be operated like a normal one bicycle dynamo and thus folded manually between an active position, where it affects the valve body, and an inactive position where the valve bodies are not affected.

Appendices: Summary Description of Procedure Description of Device (3) Patent claims Picture. Sketch 1 Sketch 1 Sketch2 Sketch3 Sketch4

Claims (1)

Patent claim To patent application no. 1000746-6 Patent claim 1 Procedure The procedure for regulating the air pressure in a tire It is characterized in that compressed air which is to be supplied to the tire is created by the wheel's own rotation. And that overpressure in the tire is prevented by the pressure reduction valve (s) limiting the pressure upwards at a predetermined value. Claim 2 Device for applying the method The device is characterized in that valve bodies (3.3) mounted in a so-called Inner ring (3.1) Affected by a cam disc (3.2) in such a way that purnp fi nilction occurs, compressed air is formed which is forced into the tire (2.2). Anordníngenß) Also characterized by the fact that the core plate (3.2) can be made fixed / movable in relation to the inner ring (3.1) or to the fixed machine part (1) via the manoeuvrable locking arm (4) thereby activating or deactivating the pump function. pressure reducing valve (s) (3 .5) limits the pressure upwards at a predetermined value.