DE1475178A1 - One-piece, molded plastic button for a distribution device - Google Patents

Description

One piece. made of plastic / molded actuation button

for a distribution device

The invention relates to the construction of an actuating button made of plastic and in particular to one one-piece actuating button for distribution devices, e.g. aerosol distributors and the like.

It is an object of the invention to provide a new and improved one-piece actuator button of the type comprising a fixed cap and a movable push button (the latter being the hollow Valve rod of a container holds), with the push button a great freedom of movement in one through the perpendicular displaceable valve rod has conditional straight line.

909805/0074

Another object of the invention is to provide one improved, one-piece, aue plastic cast control button of the type described above, the cap and push button are concentric to each other and the usual size with relatively large diameters have, wherein the push button has an extensive, well-defined contact surface for the finger of the user.

Another object of the invention is to provide an improved operating button according to the The previous one, in which the upper surface of the push button has an outline that is marked by a pronounced Marginal edge is determined which is within and closely adjacent to the circumferential wall of the cap.

The invention consists in the creation of a one-piece, plastic operating button with a relatively small space between the push button and the cap, this separation space having the shape of a ring or cylinder with a relatively thin Has wall thickness.

A special feature of the invention is the simple

the neatness and the compact design of the control button,

j with its low cost and the proper axial length

^s a recess provided on the upper part of the actuating button, which enables the user to operate the device

9 * 05/0 07 4 owq.nal, nspecthd

_ 3 -

should facilitate. The push button is held securely in place, but has great freedom of movement in a straight, perpendicular line.

Further features and advantages of the invention emerge from the following description with reference to the attached Drawing. In the different figures, the same parts are denoted by the same reference numerals.

Pig. Fig. 1 shows an axial connection through the improved actuating button according to the invention, wherein the individual parts are in the non-issue position j

Fig. 2 shows a section similar to that of Fig. 1, but the push button is in the depressed, the division of tasks

Fig. 3 shows the front view of the operating button naoh the Fig. 1;

Fig. 4 shows the top view of the bottom of the operating button}

Fig. 5 shows the plan view of the actuating button.

The operating button consists essentially of a one-piece cast piece, with the exception of a small one Muzzle part 10, which is combined with the push button at a later time. The push button 12 is of a stationary one Surrounded hood 14, which on the neck 16 of a pressurized aerosol container with a vertically movable

909805/0076

Union hollow valve rod 18 is attached.

According to the invention, the operating button consisting of the push button 12 and the hood 14 has a corresponding one axial length and a relatively large diameter. The push button 12 takes up the greater part of the top plan view of the button and is of the Cap 14 separated by a narrow, cylindrical space 20 through which the overhead peripheral edge of the push button 12 is clearly defined and separated from the cap 14. In this way, the user can use the push button and the Cap appear as two separate parts. In addition, the push button 12 with the cap 14 is in connected to one piece in such a way that the push button has great freedom of movement in the vertical direction, but only along a straight line which exactly coincides with the linear movement of the hollow valve rod 18.

As far as the external appearance is concerned and also insofar as the straight movement of the push button 12 is concerned, the push button 12 and cap 14 appear to represent two separate pieces. In known operating buttons, in which actually consist of two separate pieces, the snap fastener and cap, gives the Push button available, in contrast to one-piece actuating buttons, in which the push button only limited Movement around a pivot or around a hinge.

909805/0074

In accordance with the present invention, the cap H has a raised, covering edge 22 that is at least as high how the higher plan of the push button 12 is and which represents a protection against unintentional actuation of the push button. The invention makes such a thing possible The size of the push button 12 so that it offers a large and extensive contact surface for the finger and the rest a thin-walled, tubular, or cylindrical cap. Both parts have a considerable axial length and des Furthermore, there is complete freedom of movement of the push button between the limits defined by the valve rod 18 present, while the two parts are connected by permanent and unbreakable webs. Both parts are poured at the same time in a single casting process. This results in the only one-time injection molding process The advantage of extremely low manufacturing prices and the advantages of a straight movement of the push button ««, an extended size of the operating button, one well-limited scope of the push button and security against unintentional or accidental actuation. Furthermore, the assembly of the actuation button on the Pressure vessel 16 is simplified, since only a single plug-on movement is required for this purpose, as opposed to the two separate acts of union with two-part operating buttons.

In order to achieve the advantageous, straightforward and perpendicular movement of the push button 12 in full

ORIGiNAL INSPECTED

909805/0074

U75178

There are freedom between the limits defined by the mode of operation and the structure of the vertical valve rod 18 according to the invention at least one and two-fold three, extending in the shape of an arc of a circle, flexible and elastic, narrow and elongated connecting webs 24 are provided, which with their two ends with the push button 12 and with the Cap H are connected. Is on the push button 12 of the Control button, just like this in the Pig. 2, when pressure is applied, some or all of the webs 24 are applied into the narrow cylindrical space 20 separating the push button 12 from the cap H. In the case of the Fig. 1 shown, ineffective position of the operating button are only dit the uppermost parts of the connecting webs 24 between the push button 12 and the cap 14, while the remaining part of the connecting webs is below the edge the bottom of the push button 12 is located.

The connecting webs 24 have a sufficient length and go, for example, at intervals of 120 ° from the push button and from the cap off. The sufficient length of the connecting webs together with their thin cross-section and elasticity of the material, grants the push button considerable freedom of movement in a vertical, straight line. on In this way, the permanent connection of the push button 12 with the cap H does not restrict the length of the hollow Valve rod 18 conditional limits the movement of the push button it.

909805/007 4 o ^ al .nspecteo

U75178

Like the Pig. 1, 2 and 4, the push button 12 has a downwardly directed hub 28 which receives the upper end of the valve rod 18 with a friction base. Further, in the push-button an exhaust port 30 is provided _for whose one end with the bore of the hub 28 is in communication, and the orifice member 10 is fitted on the other end. The cap 14 has a slot 32 into which the muzzle part 10 fits, as shown in FIGS. 1-3. A small apron 34, hanging down from the push button, closes the slot 32 tightly when the push button is in the raised position, as shown in FIGS. 1 and 3.

The cap 14 has a in its upper, rear part large finger groove 36 and the push button 12 has a corresponding bulge 38 that the actuating finger is adapted. This also shows the user the direction of the exiting beam.

The short length of the vertical movement of the push button 12 is not sufficient for any appreciable twisting or twisting with regard to the cap 14 and the normal play of the dog part 10 within the slot « 32 is sufficient to prevent any other possible snagging.

From the foregoing it can be seen that with the ORIGINAL INSPECTED

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Invention an improved control button for distributors is created that can easily be molded in one piece from plastic, e.g. polyethylene, and the one push button with a large diameter and a surrounding cap, which from the outside appearances two separate Represent pieces. It can also be seen that the push button provides sufficient freedom of movement in a vertical position Direction between the funded borders. Since the operating button is cast in a single piece, is it can be manufactured at low cost and assembled with a pressurized container. What his way of working it is easy and safe to use and it makes a stocky impression and has other advantages a more expensive two-piece actuator button.

Changes and modifications can be made and individual within the scope of the claims Parts of the improved operating button can be used without the other parts.

Expectations:

Claims (4)

- 9 claims Ί J One-piece, molded plastic actuation button for a distribution device, characterized by a fixed cap attached to the distribution container (16) (H) and one located inside the cap and movable with respect to the cap and equipped with an outlet channel (30) Push button (12), the push button and cap being connected by elongated, flexible and elastic connecting webs (24) which are connected to the cap and the push button are cast in one piece and which extend in a circular arc around the push button. 2. Actuating button according to claim 1, characterized in that the cap (H) surrounding the push button (12) has the shape of a tube, the walls of which are spaced from the push button run and that the connecting webs (24) lie in the annular gap located between the cap and the push button. 3. Actuating button according to claim 2, characterized in that the connecting webs (24) are in the shape of a circular arc Have shape and spiral in the annular gap between the cap (H) and the push button (12). 4. actuating button according to claim 3 »characterized in that with the cap (H) and the push button (12) two additional, flexible connecting webs (24) are connected, which extend epirally in a circle. The patent attorney • ot «o5 / oon