DE2354981A1 - Manually held car washing brush - has telescopic length-adjustable stem with cup ring and cap nut screwed at each pipe joint - Google Patents

Abstract

Motor car washing brush as in 2009637 has a stem comprising telescoping pipe parts with a fixer at each pull-out point consisting of a cap nut turned upside down over the smaller pipe and open toward the larger pipe to be screwed on to an external thread at the facing end of the larger pipe. A cup ring is placed over the smaller pipe and is of elastically flexible material; it can be clamped between curved fitting surfaces at the end side of the large pipe and the opposite side of the cap nut, and is axially displaceable on the smaller pipe with the cap nut when this is screwed up. The length of the brush stem can be adjusted as required.

Description

Odenwaldwerke Rittersbach, Kern & Großkinsky GmbH,

6951 Ritt stabbed; : ..

Washing brush for motor vehicles and the like. Addendum to Patent No. 2,009,637

The invention relates to a washing brush for motor vehicles and the same large-area devices with a washing liquid supply line trained stiff handle, pivotable at one end the brush head is arranged in a joint included in the washing liquid supply line.

According to the parent patent, the handle consists of several mutually attachable Pipe sections that are screwed together if necessary. In this way it is possible to adapt the handle length to the needs, however, only gradually according to the length of the existing one Pipe sections. / ■ ·

The object of the invention is to improve a washing brush according to the parent patent in such a way that the length of the handle can be adapted to the respective requirements in the simplest possible manner.

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The invention is characterized in that the handle consists of several telescopically nested tubular pieces with a plague at each extraction point, consisting of a union nut slipped over the smaller pipe and open to the large pipe, which can be screwed onto an external thread provided on the facing end of the large tube and with a An elastically resilient dome ring placed over the small tube Material between curved mating surfaces on the face of the large pipe and the opposite side of the union nut can be braced, and with the union nut unscrewed with this is axially displaceable on the small tube.

According to the invention, the length of the handle is continuously adjustable, by inserting the telescopically nested pipe sections

correspondingly far apart before attracting the plague. The advantage here is that when storing the Wash brush can push the telescopic handle together completely, so that you only have a single short piece of pipe for the handle must keep, in which the remaining pieces of pipe telescopic are sunk. According to this development, the connection point between two pipe sections is also structurally simpler and more reliable trained as according to the parent patent. While according to the parent patent from the two pipe pieces attached to one another Outgoing different load torques' are based on the connection between the two threads provided, becomes the main part Such load moments according to this development by the telescopically overlapping ends of the two at each extension bar intercepted pipe pieces, while the thread of the union nut is essentially only axially directed Must absorb tensile forces.

Me invention will now be explained in more detail with reference to the accompanying drawing.

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- 3 - ·;. ■ -; P 19 643 -. In the drawing shows:. ■

Figure 1 of three telescopically nested

Pipe lengths of existing stem,

FIG. 2 a cross brush provided with a swivel joint, which is screwed to this stem with part of the "stem from figure!", and ..

Figure 3 shows the assembled brush in operation.

In Figure 1, the stem 1 is cut in half and in half shown in view and consists of a total of three telescopic nested pipe sections 2, 3, 4 and two fasteners 5 and 6 at the two pull-out points. The fastener 5 is shown tightened, the fastener 6 on the other hand released, 'so that in the illustrated Position the tubes 4 and 3 axially displaced against each other can be used to change the overall length of the stem. The fixer 6 consists of a union nut 7 inserted over the smaller pipe 3, which can be screwed with its internal thread 8 onto an external thread 9 at the free end 1 o of the large pipe 4. The free end 11 of the union nut 7 protruding beyond the internal thread 8 is designed on the inside as a 'smooth centering ring 12' which fits with play over the thread 5 and serves the union nut 7 to be centered when sliding it onto the thread 9. 13 with an existing elastic plastic dome ring is referred to, which has a hemispherical cross-section. and is placed on the small tube 3. This Kalöttenring 13 is with the union nut 7 tightened, it is pressed between two curved mating surfaces 14 and 15. so that he raises himself and himself the mating surfaces 14 and 15 and the outer surface of the larger Tube 4 sets a seal. In this way, by the fastener 6 when the union nut is screwed on and tightened the extraction point sealed so that the inside of the handle 1 promoted under pressure washing liquid at the extraction point cannot escape. In addition, the two pipes 3 and 4 are in the previously set by the tightened fastener 6 axial position supported against each other.

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The pest planter 5 is trained in the same way as the pest planter 6, he is only adapted to the smaller diameter of the pipes nested there the pipe 3, the large pipe and the pipe 2, which is inserted telescopically into the pipe 3, the small pipe.

At the free end of the tube 4, a threaded connection 17 is provided for a water hose line 16 shown only in FIG. The free end of the tube 2 is provided with an external thread 18 which, as shown in FIG. Threaded bushing 19 fits. The threaded bushing 19 belongs to a swivel joint. 2o on the back 21 of a brush head 22. The socket is through the joint 2o to the longitudinal axis 23 of the Handle 1 extending pivot axis 24 relative to the brush head 22 pivotable. The joint 2o is included in the liquid line and opens into a one arranged inside the brush back 21 Channel system with a large number of channels, which in turn are on the side of the The back of the brush open between the bristles. The washing liquid supplied under pressure inside the handle 1 thus gets through the socket 19 and the line system (not visible in the drawing) provided within the joint 2o into these channels and emerges from these in the area of the bristles and thus arrives immediately to the surface to be cleaned, towards which the bristles are directed, such as the tarpaulin according to FIG. 3, for example of a motor vehicle 31.

In a modification of the illustrated embodiment, the handle 1 can also consist of only two telescopically nested Pipe pieces or also be formed from more than three telescopically nested pipe pieces.

Brushes according to the invention are preferably used in connection with motor vehicles because they are on the one hand due to the provided long handle allow even extremely located

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Reaching lots of the motor vehicle with the brush and on the other hand, because the stem by pushing the pipe pieces together, of which it "consists, conveniently shortened in .einem The equipment box of the motor vehicle in question must be kept can.

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Claims (2)

-ς. P 19 643 1ο.1ο.1973 CLAIMS 1. Washing brush for motor vehicles and the like large area Devices with a stiff handle designed as a washing liquid supply line, at one end of which can be swiveled into a Wascbiquidszuleitung included joint of the brush head is arranged, according to patent no. 2 oo9 637 »characterized by that the stem (1) consists of several telescopically nested pipe pieces (2,3,4) with a fixer () at · each extraction point Consists of a union nut (7) that is slipped over the smaller pipe (3 I ) and is open to the large pipe (4) and can be screwed onto an external thread (9) provided on the facing end of the large pipe (4) and with one over the small Tube (3) inserted spherical ring (13) made of elastically flexible material, which can be braced between curved fitting surfaces (14,15) on the end face of the large tube and the opposite side of the union nut and, when the union nut is unscrewed, is axially displaceable with this on the small pipe . 509819/0200 - I ~ "■ _, '-.- ϊ 19 643 2. Washing brush according to claim 1, characterized in that the inside of the free, open end of the union nut is designed as a smooth centering ring surface (12) with tolerance play over the external thread of the large tube
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