DE2854503A1 - Bath tub lining - with bores and perforations in each of three joined plastic foam pads for bubble baths - Google Patents

Abstract

A lining for the bottom of a bath tub consists of three pads, made of a foam material (polyurethane) each with three bores with perforations on the top and dividing grooves on the surface. The pads are connected in series by short flexible tubes (PVC) which are pushed with a snap fit into the ends of the bores. Warm air is fed to these pads through a common distributor with three outlet tubes to each bore so that the user can have a bubble bath at any time. This lining folds up into a compact stack when not in use. It is easy to produce and assemble.

Description

Bath insert

The invention relates to a bathtub insert according to the preamble of claim 1.

Such a known bath insert consists of several tubular bodies, which nozzle openings have and via a distributor part with a source for heated compressed air can be connected. On this tubular body are single relatively stiff seat plates with the tubular body receiving recesses postponed, on which a person using the bathtub insert can sit, without squeezing the pipe bodies together.

The production of such a bathtub insert is very complex, because the nozzle openings have to be drilled into the pipe body made of PVC because they cannot be shaped during the injection process. Besides, the assembly is the tubular body and the seat plates to a bathtub insert is relatively complicated.

The present invention is intended to provide a bathtub insert according to the preamble of claim 1 are created, which are easier to manufacture and is also easier to assemble.

Based on the prior art according to the preamble of the claim 1, this object is achieved according to the invention with the characterizing features of the claim 1 specified.

In the bathtub insert according to the invention, the individual insert segments are already provided with the distribution channels and nozzle channels. You take over at the same time the user can be carried while preventing the distribution channels from being squeezed together and nozzle channels and the distribution of the air.

The individual insert segments are made of soft connecting parts connected with each other. This allows the bath mat simple can be folded into a package1 whose maximum dimensions are determined by the dimensions of a single insert segment are specified. In this way, the Easily stow or transport the bath mat.

The bath insert according to the invention is also largely modular Construction. One and the same insert segments and connecting parts can be Bathtub liners of different lengths can be easily put together by the user.

The individual insert segments are produced by foaming in a corresponding form quickly and quickly, with a surface skin on the surface is obtained, which prevents the penetration of water into the volume of the material.

The bath liner according to the invention is also special in use pleasant, as they also provide thermal insulation from the mostly not quite at bath water temperature. There is also insulation between the supplied warm air and the water. At the same time there is also danger the user slipping in the bathtub is reduced.

Advantageous further developments of the invention are contained in the subclaims specified.

With the development of the invention according to claim 2 it is achieved that the bathtub insert simply dismantled into its parts and again by the user can be plugged together, with individual insert segments being added or can be omitted as desired for the particular use.

With the development of the invention according to claim 3, a particularly safe one becomes Maintain seat of the connecting parts in the insert segments.

With the development of the invention according to claim 4 it is achieved that the last of the insert segments can be designed in exactly the same way as the rest Insert segments.

This is both in terms of the production that takes place in the same manner as well as the interchangeability of the insert segments.

The development of the invention according to claim 5 is with regard to a particularly good folding of the bath insert is an advantage.

Is used according to claim 6 as the material for the insert segments Polyurethane, this gives a particularly stable surface skin and such Compressibility of the insert segments, which allows the user to sit comfortably siG, enables a good shape adaptation to the shape of the bathtub and anyway makes sure the passage through the distribution channels is not interrupted.

With the development of the invention according to claim 7, one becomes special Good adaptation of the insert segments to the transverse curvature of the bathtub.

In the case of a bathtub insert according to claim 8, the recesses can be used Make it particularly deep so that the insert segments are even at low Adapt the load to the shape of the bathtub.

In the case of a bathtub insert according to claim 9, the connection is on the one hand between the individual single position segments is particularly easy, on the other hand, in A transverse pressure equalization is ensured for all insert segments.

A bathtub insert according to claim 9 can also be used without a separate: inlet-side Distribution part can be used.

The further development of the invention according to claim 10 achieves that the release of air bubbles across the bathtub liner is very uniform he follows.

A bath insert according to claim 11 also requires a separate one Distributor part on the inlet side. With him, too, there is a very uniform compression of compressed air of the individual nozzle channels.

With a ßschäumfoin, as it is specified in claim 12, can One-piece insert segments already finished with the distribution channels and nozzle channels can be produced quickly in a foaming process.

The development of the foaming mold according to claim 12 is used for the production of insert segments with transversal distribution channels, which after removal of the insert segment from the mold only closed at the ends with plugs need to become.

A foaming form as specified in claim 14 also allows the production of any undercut distribution channels and auxiliary distribution channels . The segment halves can also be formed very quickly because they are moving of shaped bars is not required. The finished ßegmenthälften then need just need to be glued together.

The development of the invention according to claim 15 enables production of insert segments without nozzle channels using the same molding box, which is also used for foaming the nozzle channels having single-layer segments will.

The invention is illustrated below with the aid of exemplary embodiments Explained in more detail with reference to the accompanying drawing. In this show: Fig. 1 shows a plan view of a three-part unit provided with nozzle channels for the discharge of air bubbles Bath mat; FIG. 2 is a side view of the bathtub insert according to FIG. 1 in the folded state; 3 shows a transverse section through a single insert along the line III-III of Fig. 1; 4 shows an end section of a connecting part for connecting adjacent insert segments; 5 shows a plan view of an insert segment on an enlarged scale partly in section; Fig. 6 is a plan view of a modified one Insert segment, partly in section; 7 shows a plan view of a further modified one Insert segment, partly in section; Fig. 8 is a plan view of a molding box for the production of insert segments similar to that shown in Fig. 6; Fig. 9 a plan view of the underside of the lid for the molding box shown in Figure 8; Fig. 10 a plan view of a modified molding box for the production of halves of insert segments similar to that shown in Figure 6; 11 is a plan view on the underside of a second lid for the molding box according to FIG. 10.

Fig. 1 shows a bathtub insert for bubbling air through the bath water. It consists of three identical insert segments 10, 12 and 14 and a distributor part 16 designed as a hollow body. The latter has a connecting piece 18 for connection to a source of hot compressed air, not shown, and three Outlet openings, which ile over three soft connecting parts 20 with three in the longitudinal direction extending distribution channels 22 (see FIG. Biguren 3 and 5) of the first insert segment 10 are connected. From the distribution channels 22 go from nozzle channels 24, which Open into the surface of the insert segment 10.

As FIG. 5 shows, the distribution channels 22 are annular at the ends Recesses 26 are provided into which compulsory beads 28 can snap, which are carried by thickened end portions 30 of the connecting parts 20.

Between the end sections 30 of the connecting parts 20 are thin-walled soft hose sections 32. For easier insertion and removal of the connecting parts 20 are the end portions 30 with a circumferential direction in the drawing Corrugation not shown in detail.

Lying between the distribution channels 22 are in the top of the Insert segments 10, 12, 14 running in the longitudinal direction, deep V-shaped recesses 34 is provided, under which relatively thin bending sections 36 remain.

This allows the insert segments to adhere well to the transverse curvature to customize an adeaiin.

The insert segments 10, 12, 14 are made of foamed polyurethane, the connecting parts 20 made of injection-molded PVO.

The successive insert segments 10, 12, 14 are one below the other also flexibly connected by connecting parts 20. The distribution channels 22 of the last insert segment 14 are closed at the bottom by plugs 38, the outer shape of which that of the end sections 30 of the connecting parts 20 carrying a bead 28 is equivalent to.

It can be seen that similarly, bathtub liners are also easily plugged together which have fewer or more than three insert segments.

During operation, the connection piece 18 is acted upon with warm compressed air, which from the distributor part 16 via the connecting parts 20 evenly to the three Distribution channels 22 of the first and subsequent insert segments is distributed. From there, the warm air reaches the nozzle channels 24 and occurs in the form of individual Air bubbles in the bath water and rise in it.

After use, you can leave the bath mat on the surface has a dense surface skin, simply drip off and can then be added to the fold up position shown in Fig. 2, in which it is easily stowed and can be transported.

Fig. 6 shows an insert segment in which no separate distributor part 16 is required and in which there is constant transverse pressure equalization between the Distribution channels 22 takes place. For this purpose, the distribution channels 22 are intersecting, transverse auxiliary distribution channels 40 are provided, of which also nozzle channels 24 go out. The outside of the distribution channels 22 are closed by stoppers 42; the ends of the auxiliary distribution ducts 40, which are open due to the manufacturing process, are provided with plugs 44 locked. In order to achieve a uniform exit of air bubbles, have the nozzle channels 24 communicating with the central distribution channel 22 are smaller Cross-section, which is shown exaggerated in the drawing. Similar can also the other nozzle channels with increasing distance from the branch point of the corresponding one Auxiliary distribution channel have an increasing cross-section from the central distribution channel, to compensate for the corresponding pressure losses. In any case, however, it will a symmetry of the entire insert segment to its transverse center plane made sure that it is plugged together with other insert segments in any orientation can be.

Fig. 7 shows an insert segment 10 ", which is also without Distribution part 16 can be used. It has only a single central distribution channel 22, from which transverse auxiliary manifold channels 46 go out, those with the nozzle channels 24 related. The insert segment 10't consists of two segment halves 48 and 50, which are substantially mirror images of each other and along their Contact surface are glued, but only the gluing along the edge carefully must be carried out. The segment half 48 is designed without nozzle channels. The insert segment 10 "is just like the insert segment 10 'according to FIG. 6 only connected via a single connecting part 20 to an adjacent insert segment. The first insert segment can be connected directly to the compressed air source, the last is closed by a plug.

8 shows a foaming mold for producing an insert segment similar to the one in Big. 6 shown. A Bormkasten 52 has a side wall of the mold forming frame 54, which has the same height as the finished insert segment should receive. A base 56 is detachably connected to the frame 54 of the molding box 52.

In opposite end walls 58 of the molding box 52 are three Form bars 60 displaceable and tightly mounted at half the height above the floor 56, the diameter of which corresponds to the desired inside diameter for the distribution channels 22. By a longitudinal groove and not shown in detail one that intervenes in these Each of the shaped rods 60 is guided non-rotatably in the end walls 58 with a pin. At those points at which nozzle channels 24 extend from the distribution channels 22 should, the shaped rods 60 have recesses 62 into which a cover 64 (cf. FIG. 9) the form pins 66 carried by the foam mold can be inserted in a form-fitting manner.

The shaped rods 60 are provided with a stop collar 68 at one end provided, which cooperates with the outside of the space 54 and to the one Handle 70 is formed for moving the molding rod.

Auxiliary forming rods are formed through transverse through bores 72 of the forming rods 60 74 positively passed through, the diameter of which is the desired diameter for the auxiliary distribution channels 40 corresponds. The auxiliary form rods 74 have on those Places at which nozzle channels 24 are to extend from the auxiliary distribution channels 40, Recesses 76 into which Borm pins 78 of the cover 64 can be inserted in a form-fitting manner are whose axial dimension is of course correspondingly larger than that of Borm Pins 66.

The form rods 74 have stop collars to specify their position 80, which work together with the outside of the frame 54 and to which also Handles 82 are integrally formed.

The foam form described above can be used as follows: on the walls of the frame 54, the molding bars 60 and the auxiliary molding bars 74, as well as A release agent is sprayed onto the base 56 and the cover 74. The foamable Material is then uniform on the floor 56 with an appropriate dispenser applied. Then this is connected to the frame 52 and the cover 64 is put on. This can occur in the case of foamable materials that occur during foaming around obstacles tend to "form shadows", also with a foamable layer Material be provided.

After foaming and hardening of the material are first the form rods 74 and then the form rods 60 pulled out of the workpiece. This is supported on all sides by walls of the foam mold. After that will be Cover and 64 removed from the bottom 56 / from the frame 54, and the finished insert segment is removed.

The plugs 42 are then also inserted into the insert segment obtained in this way and 44 inserted and glued.

Fig. 10 shows a foam mold for producing a segment half for an insert segment similar to that shown in Fig. 6, but with no plugs must be used. This foam mold has no movable mold rods but Form rods 84 and auxiliary form rods 86, which also have recesses 62 and 76 are provided and have a semicircular cross-section. The shape bars 84 and the auxiliary molding rods 86 are firmly connected to the bottom 56 of the molding box 52. Of the Frame 54 is half the height of a finished insert segment. The shaped rods 84 for the lateral distribution channels 22 and the auxiliary shaped rods 86 end at a distance from the frame 54. As a cover for the molding box shown in FIG that shown in Fig. 9 can be used.

A segment half is produced in the same way as above for the foam mold according to FIGS. 8 and 9 described.

To produce the segment half that does not have nozzle channels the molding box 52 according to FIG. 10 simply with a lid that does not carry molding pins 88 of Fig. 11 can be used.

The segment halves obtained in this way are then glued to the contact surface, again, it is only a question of a clean bond along the edge.

By corresponding modification of those shown in FIGS. 9 to 11 Foam molds made up of two segment halves can also be easily made Produce insert segments according to FIG. 7.

Claims (15)

Bath insert claims ¼ 1+ bath insert with compressed air loadable distribution channels and with a large number of nozzle channels, soft proceed from the distribution channels and open into one of the surfaces of the insert, characterized by a plurality of insert segments (10, 12, 14; each consist of foamed material and in which the distribution channels (22) and the nozzle channels (24) are formed by foaming, and by a plurality of soft connecting parts (20), via which the distribution channels (22) successively Insert segments (10, 12, 14) are connected to one another. 2. Insert according to claim 1, characterized in that the soft Connecting parts (20) have reinforced end sections (30) with which they are in the Press fit into the ends of the manifold channels (22) are used. 3. Insert according to claim 2, characterized in that the end sections (30) of the connecting parts (20) carry a bead (28) which is in a complementary annular recess (26) of the distribution channels (22) can be latched. 4. Insert according to claim 2 or 3, characterized in that the rear ends of the distribution channels (22) of the last insert segment (14) through Plugs (38) are closed, which have the same external shape as the end portions (30) of the connecting parts (20). 5. Insert according to one of claims 1 to 4, characterized in that that the connecting parts (20) are made of soft PVC. 6. Insert according to one of claims 1 to 5, characterized in that dsß the insert segments (10, 12, 14) are made of polyurethane. 7. Insert according to one of claims 1 to 6-, characterized in that that the insert segments (10, 12, 14) have recesses (34) running in the longitudinal direction exhibit. 8. Insert according to claim 7, characterized in that the recesses (34) between those containing the distribution channels (22) and the nozzle channels (24) Sections of the insert segments (10, 12, 14) lie. 9. Insert according to one of claims 1 to 8, characterized in that that of several distribution channels (22) running in the longitudinal direction only one is connected to adjacent Sinlagesegmenten via connecting parts (20) and via transverse auxiliary distribution channels (40) with the others extending in the longitudinal direction Distribution channels is connected. 10. Insert according to claim 9, characterized in that the auxiliary distribution channels (40) also go out nozzle channels (24). 11. Insert according to one of claims 1 to 8, characterized in that that an inlay segment (10 ") each has a distribution channel running in the longitudinal direction and a plurality of auxiliary transverse manifolds communicating therewith (48), from which the nozzle channels (24) extend. 12. Foam mold for the production of insert segments for a bathtub insert according to one of claims 1 to 11, characterized by a molding box (52) which extends to the upper edge of the insert segments (10, 12, 14), as well as the molding box opening closing cover (64), by molding rods (60) for the distribution channels (22), which axially displaceable and fixed in the direction of rotation tightly through opposite one another End walls (58) of the molding box (52) are passed, and by molding pins (66), which are carried by the cover (64) and in recesses when the cover (64) is closed (62) engage the form rods (60). 13. Schäumforin according to claim 12 for the production of an insert segment with transverse auxiliary distribution channels, characterized in that auxiliary shaped rods (74) for the auxiliary distribution channels (40) have a smaller diameter than the first molding rods (60) for the distribution channels (22) and through openings (72) of the first forx bars (60) can be moved through. 14. Foam mold for creating insert segments for a bathtub insert according to one of claims 1 to 11, characterized by a molding box (52) whose Bottom (56) half the cross-sectional profile of the distribution channels (22) and optionally the auxiliary distribution ducts (40 or 48) pre-set shaped rods (84, 86) which on the points at which nozzle channels (24) are located in the product, openings (62 or 76), and by a cover (64), which in the recesses (62, 76) of the shaped rods (84, 86) carries insertable shaped pins (66, 78). 15. Use of a foam mold according to claim 14 for the production of Segment halves without nozzle channels, characterized in that a cover (88) without Form pins is used.