DE834303C - Connection to connect a body made of rubber or a similar elastic material rotatably with a connection piece - Google Patents

Description

(WJGBl. P. 175)

ISSUED MARCH 17, 1952

H $ 325 XII / 47f

The invention relates to socket connections of the type in which the sleeve is resilient in a body of rubber or the like Material is included, which is rotatable relative to the other pipe end or neck.

According to the invention, which is the rotatable connection of a body made of rubber or another elastic material around a Tube end acts, the rotary movement between the rotating surface on the tube end and a cooperating surface take place, which from a slotted, into an elastic Grommet of the body recessed sleeve is formed.

Projections on one or each of these surfaces prevent relative axial movement between the pipe end, while the elastic grommet closes the sleeve holds and so a relative rotary movement between see the sleeve and 'the spout prevented.

The slotted sleeve expediently has a cylindrical-tubular shape, and both they and atf the rotating surface on the end of the pipe have working ring flanges or shoulders Ends to fix the pipe end and the sleeve relative to one another in the axial direction. The slotted Sleeve and'the elastic grommet of the body »5 interacting ring flanges or connecting

Claims (4)

sets have at their ends, mn spout and sleeve set in the axial direction relative to each other. The connection can be a part of many different types Forming devices; but in a special case the elastic body is part of a vacuum cleaner suction tool (Suction head), and the neck is tubular and can be the elastic body with a pipe, e.g. B. a suction hose, which in turn is connected to the vacuum cleaner is. The invention can be used in various ways are implemented in practice, but a special Ausiührungsform in their application from vacuum cleaner tools is described below with reference to the drawings, for example. It shows Fig. Ι the top view of a suction tool geiuäl.1 of the invention in partial section, FIG. 2 is a front view, partially in section, FIG. 3 is a section along line 3-3 of FIG. 2. FIG. 4 is a section along line 4-4 of FIG. 2 kiwi ' FIG. 5 shows a section along line 5-5 of FIG. 2.
The suction tool shown is of the type. dal.) it can be connected to one end of the suction hose attached to the vacuum cleaner. The suction nozzle consists of an elastic upper part body 10 made of molded rubber or a similar elastic material on which a lower part of the body, e.g. B. a brush assembly 11, is attached. The elastic part-body 10 contains a sleeve 12 formed in one piece with it with a curved side wall 13 and a front wall 14, the lx * ide in an elongated upper Wall 15 ows. An edge 16 extends from one side of the perimeter of the upper wall 15 luid ends in an inwardly directed approach 17, which with the edge 16 and the adjacent edge part iK of the upper wall 15 is a channel-like 4u seat or a recess 19 of the edge 16 forms. The brush assembly 11 comprises an elongate Bürstenrücken- or frame 22 having a at the periphery l> efindlichen approach 21. In the middle part of the brush back 22, a Luftdurehgang 2 ^ ₁ is provided which has a relatively large A-Ia 1.1 24 in the Bodenflächc the brush back uik1 ends in a smaller outlet 25 at the top in the back of the brush, the latter communicating with a chamber 20 in the elastic part-body 10. A brush, which consists of two rows of staggered bristles 26 and 27, so that the bristles overlap one another, is fixed in the attachment 21. The two rows form an elongated opening communicating with the inlet 24 of the passage 23. The brush arrangement 11 is fastened to the elastic part-body 10 by inserting the projection 2i into the recess 19. The underside of the upper wall 15 of the elastic part body 10 is provided with ribs 29 which rest on the lower surface 30 of the back of the brush. An angle line or a pipe socket 41 is connected to the spout 12 so that it can rotate in it as on a pin. The pipe section 41 can be connected to one end of a hose, not shown, the other end of which ! Is connected to a vacuum cleaner., I it the ι grommet 12 sit a pair of semi-cylindrical metal sleeves 42 and 43. which together form a cylindrical sleeve, the outer diameter of which is slightly larger is than the inside diameter of the spout, so d «ß 'the latter hold the sleeve 42:43 and against Can secure rotation in the grommet. Movement between the sleeve 42.43 and the grommet 12 in Longitudinal wind through the direction of the flange-shaped lugs 45 and 4 (1 on both Prevents finding the sleeve, whereby the flanges45 on the inner lugs 47. the flanges 41 "" on the outer lugs 48 of the grommet 12 rest. In the sleeve 42, 43 there is a projection 49 with a corresponding diameter tube 41 rotatably mounted, the shoulders 50 and 51 which abut against flanges 45 and 4 (1, so that between the spout 12 and the pipe socket 41 longitudinal movement is prevented. When attaching the vacuum cleaner tool, the semi-cylindrical socket parts 42 and 43 are arranged around the tapered part 4c) of the pipe section 41 between the lugs 50 and 51 in such a way that they form a cylindrical surface, and the elastic grommet 2 is then over the sleeve 42, 43 drawn. When the pipe extension 41 is rotated in relation to the suction head, the tapered part 49 of the pipe 41 rotates in relation to the sleeve 42, 43, so that it remains immovable in relation to the nozzle 12. When the cleaning tool is used, air is sucked in through it by the vacuum cleaner from which the hose connected to the pipe 41 extends. The user moves the suction head over the surface to be cleaned, the bristles 26, 2J resting thereon in order to whirl up the dust into the air flow. The dust-laden air flow passes through the elongated bristle-turned opening, inlet 24, passage 23, and outlet 25 into chamber 20 and then further through tube 41. It should be pointed out that the invention does not apply to the special form of connection, which was described in its application to the cleaning tool of a vacuum cleaner. ! «But can be applied to many different devices if necessary is to connect a relatively rigid support with an elastic grommet so that the approach can be rotated relative to the spout. Pate χ tax s ι r Γ c: 11 H: ι. Connection rotatable about a body made of rubber or a similar elastic material to be connected to a connector, characterized in that the rotary movement between a rotating surface on the connecting piece (41) and a cooperating surface therewith Surface of a slotted sleeve (42,43) takes place, which sleeve in an elastic Grommet (12) of the body is inserted, and that lugs (50, 51) on one or each of these surfaces prevent relative axial movement between the connecting piece (41) and the sleeve (42, 43), while the elastic grommet holds the sleeve (42, 43) in place for relative rotational movement to prevent between grommet (12) and sleeve (42, 43). 2. Compound according to claim 1, characterized in that that the slotted sleeve (42,43) cylindrical tubular shape l> esitzt and they and the Rotary surface of the connection piece (41) cooperating circular flanges or lugs (45, 46 or 50, 51) have at their ends to the connecting piece (41) and the sleeve (42, 43) to be set axially to one another. 3. A compound according to claim 1 or 2, characterized in that the slotted sleeve (42, 43) has a cylindrical tubular shape and it and the elastic grommet (12) are circular have cooperating flanges or lugs (47, 48 or 45, 46) at their ends, to fix the grommet and sleeve axially to one another. 4. A compound according to claim 1, 2 or 3, characterized in that the elastic Spout (12) forms part of a vacuum cleaner suction tool that the connecting piece (41) is tubular and kinked to the elastic grommet z. B. to connect with a suction hose, which in turn is connected to the vacuum cleaner. 1 sheet of drawings θ 3466 3.52