DE1532812A1 - Car wash brush with water shut-off device - Google Patents

Description

PATENT ATTORNEY _{E to} ^ _{January 1966}

Dr. A-: Cre.] E. \ Vski

ι Hei '■ .'-..- Ίο! ■ Ucfattuti)

Telephone 2 Ui 02

Dr. Expl.

Patent application

of Mr. Walter Wessel jun.

Remscheid, Ehringhausen 97

Car wash brush with water shut-off device Addition to patent ... (patent application W 40 052 III / 9b)

The main patent deals with a car wash brush with water supply through the handle and brush body as well as with a washing water shut-off device built into the handle and consisting of an actuator through which the washing water flows and which can be screwed into the handle, with casing outlet openings for the washing water and valve body as well as a valve seat assigned in the handle. Such car wash brushes have proven themselves, but are in need of improvement as the seal between the handle and the screw-in actuator can only be achieved properly with relatively complex manufacturing measures. In fact, in the case of the car wash brush according to the main patent, the actuator is equipped with a collar that can be placed on the handle with the interposition of a sealant so that when the valve body is placed on the valve seat, the sealant between this collar and the handle is also effective. However, that requires

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a special processing of the thread provided between the handle and the actuator screwed into it, since the sealing means can only fulfill its sealing function properly when the actuator body is placed on the valve seat when the actuator is advanced precisely. Otherwise, a complete seal cannot be achieved if the blocked pressure water from the hose line is present in the handle. Furthermore, the car wash brush described at the beginning is in need of improvement from a manufacturing point of view, as the manufacture of the handle is due to the internal thread for screwing in the actuator Reinforcement brings difficulties.

The invention is based on the object of producing a car wash brush of the type described in the introduction and particularly easy to design in terms of sealing technology.

This object is achieved by the invention in a car wash brush according to the main patent in that between the actuator and a threaded sleeve on the handle and a sealing member on the actuator between the threaded sleeve and the valve body are arranged. This measure of the invention has the consequence that the actuator is not directly in the handle but is screwed into the threaded bushing to which the handle is attached and behind this threaded bushing in the washing water supply direction, the sealing element

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Gan is provided, so that when washing water is present in the handle under pressure, sealing is already in front of the thread he follows. According to a preferred embodiment of the invention, which has independent meaning, it is provided that the sealing member as a sliding element on the actuator between the threaded sleeve and a stop, against ring seal against the inner wall of the handle is executed. As a result, the sealing ring and the threaded bushing always work together, which is especially true of the The case is when the actuator is in the closed position, in this case the wash water is in the handle under pressure, the threaded bushing is screwed forward and the ring seal presses against the stop. These are namely the distance between the stop and the screwed back Threaded bushing and the thickness of the ring seal accordingly chosen. In order to also ensure a perfect seal between the valve body and the valve seat when the valve is pre-screwed To obtain threaded bushing and thus the actuator located in the closed position, the invention recommends further that the valve body and the valve seat are conical Are formed like a truncated cone. Surprisingly, this measure has the consequence that when the valve body is lifted depending on the distance between the valve body and the valve seat and with the brush body unscrewed at the end of the handle emerges a veil of water, so that in this case the car wash brush according to the invention, is particularly suitable for pre- or post-rinsing of the vagens. The smaller the distance between the ■

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The valve body and the valve seat is, the wider it spreads the water veil is removed.

The advantages achieved by the invention are substantial to see that through the training according to the invention dor car wash brush according to the main patent in finished technically and diohtungtechnisch respect essential Simplifications can be achieved. Because the handle does not have a reinforcement for one to take up of the actuator provided internal thread is, but this reinforcement is replaced as it were by a threaded bushing, there is the possibility of the The handle can now be produced in a simple manner, e.g. deep-drawing or extrusion-molding. Another special one The advantage is that, according to the teaching of the invention, the seal between the handle and the actuator is now achieved takes place before the thread in the washing water supply direction, this means that the thread of the threaded bushing and actuator do not require exceptionally precise machining and yet always provide a perfect seal is achieved between the handle and the actuator, so that especially when the valve body is placed on the valve seat, So when the actuator is in the closed position and in the handle V / ash water under increased Pressure is applied, a drop of water between the handle and the actuator due to a leak certainly not done.

In the following the invention is based on only one

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BATH ORIGINAL

Embodiment illustrated drawing explained in more detail; show it:

Figure 1 is a perspective view of a car wash brush according to the invention,

FIG. 2 shows an axial section through the handle of the invention in an enlarged illustration compared to FIG Car wash brush.

The car wash brush 1 shown in the figures corresponds in its external shape and in its external structure to the known, it consists of the brush body 2 with attached bristles J5 and the handle 4. Brush body 2 and Handle 4 are made hollow, so that a washing water supply via the handle 4 and the hose nozzle 5 shown there can take place, the washing water in the area of the bristles j5 through bores or holes in the brush body 2 exits. In the handle 4, a water shut-off device is installed, which consists of a screwable into the handle 4, actuator 6 through which the washing water flows and having jacket outlet openings 10 for the washing water and valve body 8 and in the handle 4 associated valve seat 9 consists. By actuating the actuator 6, the valve body 8 can be lifted off the valve seat 9 or vice versa. The actuator 6 is a tube or rod with the M component outlet openings 10 executed. According to the invention, a threaded bushing 16 and are between the actuator 6 and the handle 4

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on the actuator 6 zvri & heights of Gewirio.ehivh valve body 8, a sealing component Iv a ^ ...--;: .. ■ ::; ■ management body ^{3.7:: s;} - pj eiJ; * 'on 6s:' ~. . ^ ■ the threaded bush 3 ο around · a- · Ar.sc :. ";. ■ ν -;. ^: Against the IiiitejiWriri.dup, g Z '' ■) ^; 3.e.-. H ^; -.r .dg -:? ^ "'·: ■ ■"

the valve seat ?: 9 kegeistijmjjarr.:l£ au; ,,

• 16 and the. »That you» · between, • cutable _ß '' · . legend! • ^ gel-like ,,

Expectations:

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BATH ORIGINAL

Claims (2)

Expectations \ J Car wash brush with washing water fed through the handle and brush body as well as with the washing water shut-off device built into the handle from an actuator that can be screwed into the handle, through which the washing water flows, with jacket outlet openings for the washing water and valve body as well as a valve seat assigned in the handle according to patent ... ( Patent application W 4o 052 III / 9b), characterized in that between the actuator (6) and the handle (4) a threaded bushing (16) and on the actuator (6) between the threaded bushing (16) and the valve body (8) Sealing member (17) are arranged. 2. Car wash brush according to claim 1, characterized in that the sealing member (17) as one on the actuator (6) slidable between the threaded bushing (16) and a stop (18), against the inner wall (19) of the handle (4) adjacent ring seal is carried out. >. Car wash brush according to claim 1 or 2, characterized in that that the valve body (8) is conical and the valve seat (9) is designed as a truncated cone. Patent attorney Dr. Andreevsky 009821/0037