DE1223249B - Method and apparatus for making a pillow from compressed gummed hair - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

B68g

German class: 56 a - 3

Number: 1223 249

File number: H 44289 VII a / 56 a

Filing date: December 1, 1961

Opening day: August 18, 1966

The invention relates to a method and an apparatus for producing an upholstered cushion from compressed, pre-formed, rubberized hair and from at least one layer of itself predominantly in a direction substantially parallel to a block plane extending hair.

Natural and artificial fibers have become known as rubberized hair, such as horsehair, wool, Coconut fibers, Algerian grass or polyamide fibers, which are elastic even when dry Adhesives are coated, for example with rubber latex or soft polyvinyl chloride.

It is also known to produce upholstery cushions from such fiber material. Usually the first The fiber material is piled up and then soaked with the adhesive.

The fiber material is stacked on a flat surface, which later becomes a large one Corresponds to cushion area. The layering is usually done in such a way that the fibers are parallel to the plane Contact surface come to rest. In relation to the amount of fibers used, this shows such Cushions made of good fiber only have a low elasticity, i.e. poor spring properties.

Methods have therefore already been proposed in which the fibers are essentially perpendicular to the flat support surface during the laying process be aligned. When using such a cushion in a flat position, the spring properties are thereby clearly improved. In the direction perpendicular to the grain, i.e. when used on edge, but this cushion also has unsatisfactory spring properties.

It is also already known to make upholstery cushions using elastic adhesives made from fibers produce that come to lie in the pillow body in various directions, approximately parallel and perpendicular to the surfaces of the body. The fibers essentially retain their straightness at, and the methods and apparatus required for the manufacture of such pillow bodies are very expensive, since a blower must be used, which with screen rollers or special Tanks cooperates.

Processes have also become known in which nonwovens consisting of fibers are mechanically compressed will. Some of these known methods work with needle drums, which the fleece with is fed to a speed which is above the peripheral speed of the needle drum. That Fleece is therefore compacted by the needles engaging in it and can then with a Method and device for

Making a pillow from compressed rubberized hair

Applicant:

The Hairlok Company Limited, London

Representative:

Dipl.-Ing. H. Leinweber, patent attorney,

Munich 2, Rosental 7

Named as inventor:

Harold Arthur Howard, London

Claimed priority:

Great Britain December 1, 1960 (41324)

Pair of calender rolls brought to the required thickness " will.

Finally, it has also already been proposed to consist of straight fibers of any orientation To compress the pillow body additionally in one direction. Squeezing the However, the cushion body as a whole by a lateral pressure only results in an inconsistent compression of hair that is large and im near the outer surfaces to which the pressure is applied Inside the pillow body is insignificant.

The object of the invention is to provide a pillow base material made from compressed rubberized hair to create whose spring properties through any orientation and sinusoidal shape of the individual fibers in are equally good in all directions of loading and are nevertheless already known as its starting material simple process made layers of rubberized hair can be used, wherein a very simple device can be used to produce the cushion base material according to the invention should be, which is merely a modification of the needle device that has been proven to be reliable in operation.

In the method of the type mentioned at the outset, this object is achieved according to the invention in that In the block at short intervals needles of needle sets od. The like. Introduced perpendicular to a cushion plane and then moved laterally to one another and thereby laterally compressed the cushion becomes and the hair wavy in many directions

609 610/9

3 4

are intertwined and that so reducing the strength by pressure to increase

The hair structure produced is then caused by an adhesive of the density of the pillow. In a joint

medium is fixed. squeezed or shaped pillows, the hair

Through these measures, the fibers are usually covered in structure by surface compression according to a known method with randomization of the hair at the edges, and for this reason, cut edges are shown, for example, with considerable density.
2 shows, for comparison with FIG. 1, a similarly strong curl and a position in all possible borrowed part of a laterally compressed pole directions between the flat outer surfaces. After sterkissens made of rubberized hair according to the invention of the fixation by the adhesive, the so her- io whereby the lateral pressure in relatively placed cushions for all load directions the ring spacings, as indicated by the short arrows on spring properties, which not only indicates, carried out became. As can be seen from the elastic compression at the front, but also for the elastic cut edge 3, this lateral compression has elongation because the individual fibers are essentially given the 15 in the pressure direction by the treatment of the hair in a primarily twisted structure according to the invention, and at the front Have taken the form of a sine curve. Cutting edge 4 is the alignment of the hair qua

According to a further feature of the invention for the lateral pressure direction, multidimensional, wöbe

will during the lateral compression of the essential part in the direction of strength unc

Upholstered cushion the thickness of which extends through a pair of the plane of the cushion,

parallel to each other at a certain distance. 2 in the direction

tidy plates limited. As a result, the lateral pressure can be stretched effortlessly, as shown in FIG.

The desired final thickness of the pillow is influenced and indicated by the long arrows, then it opens

in particular, the increase in strength at the side, the twisted structure, for example in the manner of a pulling

Compression can be absorbed. monika and is more easily recognizable. Such a stretch

In order to carry out the method according to the invention, it is not possible, according to a further feature of the invention, with the known pillows of the type shown in FIG.
In the case of a cushion that is compressed transversely to the one according to the invention by means of inserted needles of multiple slotted parallel plates, the cushion between them can preclude the needles from being small but limited , further two rows of needles that leave holes 5 in the pad on guide 30, as in FIG. 2 rods supported by parallel support rods are shown.

a winch for pushing the needles through an apparatus for serial production of kisser

the plate slots and for piercing the pad is shown in FIG. 4, 5 and 6 shown. She embraces one

as well as for pulling back and sliding bars to the Auf- frame 6, in which a pair of horizontal Mehrfacr

To move the needle slotted plates 7 and 8 located in the cushion perpendicular to one another

has rows. are arranged.

Advantageously, according to a white, the lower plate 7 is supported by a lifting and lowering

Direct feature of the invention is the needle bars to the device, which can be used as hydraulic or pneumatic

Limiting their mutual distance in pairs winch 9 is shown, carried, and the above

connected by slotted guide tabs. 40 plate 8 can rest freely on adjustable supports 10

Further features, details and advantages of the or can be raised by the lower plate 7 of the device and the manufacturing process for a pneumatic or similar retractable cushion made of rubberized hair according to the invention pusher locks 11 on each side of the frame result from the following description. To be captured in mens 6 and releasably held,
of the drawing is a preferred embodiment 45. The alternating raised and lowered positions of the invention are shown for example, namely the plates 7 and 8 are shown in the left and right-hand side, respectively: Part of FIG. 6 shown.

F i g. 1 a perspective sketch of a cut-off In the upper part of the frame 6 extend two:

tenden piece of a known upholstered cushion consisting of a pair of guide rods 12 horizontally from one side.

compressed rubberized hair, 50 to the other, a pair at the back and a pair at the front, ouch

F i g. 2 shows a corresponding view of an extended rod 12 through support sleeves 13

cut piece of a number of horizontal, parallel support rods 14 according to the invention ii

manufactured upholstery cushions, attached to be displaceable at small intervals

F i g. 3 a piece of a pillow according to FIG. 2, in each of which a set of vertical rows of needles 15 extends below 55 in the direction indicated by the arrows,
is to open its coiled hair structure, the support sleeves 13 switch to the guide

Fig. 4, 5 and 6 a plan view, a front view of rod pairs 12, what the use behaves-

and allows an end view in section of a device of moderately long sleeves,

according to the invention, with parts in alternating positions- The rods 14 are by inclined, slotted

are arranged, and 60 guide tabs 16 for adjacent pairs

F i g. 7, 8 and 9 schematic representations of the ren connected so that the rods on the guide

Operations of the device. rods 12 until they bump against each other or

F i g. 1 shows part of a known upholstery up to the end of the slots of the guide flaps Ii

cushions made of compressed, rubberized hair that can slide apart.

the front edges 1 and 2 are cut edges, at 65 At each end of the unit of rods 14 is a

the mainly flat alignment of the hair slide bars 17 also on the guide rods 12

to represent that of the settling of the hair attached in a slidable manner; this bar is

or more layers and, as usual, of the slotted tabs 18 with the corresponding carrying

5 6

rod 14 connected and has a straight tooth F i g. 8 shows, and the lower plate is displayed again.

rod 19 which rose across the support rods 14 so that the frame 25 surrounds the cushion 24,

stretches in order to move into a pinion 20 with a vertical axis.

to intervene, the two being drawn as toothed racks and the lower plate 7 lowered, namely

see the support rods on opposite sides - 5 taking the frame 25, which is located in it.

the sides of the pinion are arranged. The pinion is borrowed from cushion 24 and the top plate 8 until the latter

connected to a shaft 21 which meets a bevel gear 22 on the supports 10 and rests on them. These

has, which is by a reversible electric position in F i g. 9 illustrates

motor 23 is to be driven. The hair pillow 24, which differs from its side

By turning the pinion 20 in a direction io borrowed pressure is recovered, is firmly in the frame 25

the slide bars 17 can be moved inward, fitted and removed with this. A

in order to abut against the corresponding support rods 14 - subsequent fixing or hardening of the adhesive

sen to take these end rods with you in their movement makes the transversely compressed state of the

men and to cause these in turn to fol- hair pillows permanently, which after removal

push rods and move them until the 15 provides the frame 25 with the desired upholstered cushion.

Sets rod assembly closed towards the center,

is. For continuous production, a basic

When the pinion 20 rotates backwards, the slide bars are

17 moved outward and pull the support rods 14 are turned. In such a case, the

one after the other through the tabs 18 and guide rods 20 of the rows of needles, for example rods one

flaps 16 apart. endless chain or an endless belt that is on

The rotation of the pinion 20 is lowered by a pillow of hair placed on one

switching the run of the electric motor 23 controlled, conveyor between parallel, with many slots

and in addition, manually operated tempering plates can run so that the needle bars with

and reversing switches and automatic off switches 25 run on the hair pillow, one after the other

be used as they are under the name end-nod and the hair pillow with spaces in the

Switches are known that compress by touching the direction of movement until there is a

Slide bar 17 in suitable positions on the vulcanizing chamber or another hardening point

Frame 6 can be controlled. has gone through.

In the following, the method of operation of the device is described.

With reference to the schematic method, a hair pillow that is made with liquid

Positions of the F i g. 7, 8 and 9. Adhesive is coated and in one in its plane

An upholstered cushion is moved forward from the compressed and lying direction, in an in

gummed hair is prepared, d. that is, it will be in its direction in proportion to its plane

for example from a web of such hairs, 35 closely spaced points through at least

which, in a way known for rubberized hair, squeezes a pair of needle sets that make the

is made, cut off and repeated on the lower plat- pillow in the direction of its thickness

te 7 of the device is placed when the plates penetrate and are moved relative to one another,

7 and 8 are in the lower position, as shown in FIG. 5 and one sentence laterally towards the other, and

shows. 40 over a short distance, whereupon the needle

By operating the winch 9, the lower set is then withdrawn from the hair pillow

Plate 7 moves upwards and lifts the top plate 8.

which lies on suitable spacers, which

speaking of the desired final thickness of the pillow derzubegen is that the part of the hair

are arranged on the lower plate 7 until the 45 is laterally compressed between them, where-

Rows of needles 15 through the slots in the plates and when moving the cushion with a suitable,

the cushion of hair lying between them is maintained at a reduced speed

are urged. This position is shown in FIG. 7, and this pressure is maintained as long as

in which the hair pad with the reference numeral 24 continues until the pad is compacted by vulcanization

see is. 50 or by another hardening of the adhesive

The motor 23 is now started to make it permanent.

a compression of the support rods of the needle - other arrangements could be used

rows 14 causes the needles to move the hair pad around a continuous closer together of the needles

Press the sides together at small intervals. or corresponding driver links for the hair

During this transverse pressure, the 55 must grow so that a pillow of hair

Thickness of the hair pillow due to the distance and the subsequent or simultaneous, localized pressure

The weight of the upper plate 8 is limited, and the hairs on the side of the pillow plane

pillow presses its upper and lower forehead.

Sides flat against panels 7 and 8. For example, two could be parallel, each with

The ram locking device 11 now emerges in order to move the 60 rods provided in a row of needles on a conveyor

to grasp the upper plate 8 and in its raised position for the cushions made of rubberized hair.

ment to hold, and the lower plate 7 moves and can be brought through links and

down and lets the laterally compressed eccentric movements or cam movements

Put the hair plate on the rows of needles 15, as will be induced to repeatedly pass through the hair.

F i g. 8 shows. 65 penetrate and the desired cycle of movement

An open, rectangular frame 25 is designed to be straight.

the line under the side-squeezed hair- A rod could simply move back and forth

cushions 24 placed on the lower plate 7, such as moving motion are communicated to their needles

penetrate the hair periodically, as a stop for the hair, which is pulled by the needles of the other rod, which is imparted a lateral and a reciprocating movement, are pressed together.

Another and preferable option is to have both rods a similar back and forth to communicate forward and lateral movement, but with lateral movement in opposite directions Direction is so that they both move so that they pull the hair together between their needles.

The needles of each pair can be arranged so that they both pull the hair from the same side penetrate the hair pillow, for example downwards in the case of a horizontally conveyed pillow, or from opposite sides, for example from above and below a horizontally conveyed Pillow, or from each side of a pillow conveyed in a vertical direction.

In a cushion made of rubberized hair, which is made according to the invention, can in particular by examining a cut made in the direction of the lateral compression, that there is a hair structure that is not primarily flat as in a conventionally layered one rubberized hair, but multidimensional and with a wavy or twisted texture is in the direction of the lateral compression.

Claims (4)

Patent claims: 1. A method of manufacturing an upholstery cushion from compressed, preformed and rubberized hair as well as at least one layer of itself predominantly in substantial hair extending parallel to the plane of the pillow, characterized in that that in the block at short intervals needles of needle sets or the like introduced to the cushion plane and then moved laterally to each other and thereby the cushion is pressed together sideways and the hair wavy in many directions with each other are entangled and that the hair structure produced in this way then by means of an adhesive is fixed. 2. The method according to claim 1, characterized in that during the lateral compression of the cushion whose increase in thickness is limited by a pair of plates arranged parallel to one another at a certain distance. 3. Device for performing the method according to claims 1 and 2, characterized by a pair of multiple slotted parallel plates (7 and 8) to enclose the between them located upholstery, at least two rows of needles (15) on guide rods (12) are carried by parallel support rods (14), a winch (9) for pushing through the Needles through the plate slots and for piercing the pad and for pulling back and slide bars (17) for moving the rows of needles (15) located in the pad towards one another. 4. Apparatus according to claim 3, characterized in that the needle bars (14) for limiting their mutual distance connected in pairs by slotted guide tabs (16) are. Considered publications:
Austrian patent specification No. 195 746,
047, 207,674; Swiss patent specification No. 144 926;
U.S. Patent Nos. 2,288,095, 2,409,898. For this purpose 2 sheets of drawings 609 610/9 8.66 © Bundesdruckerei Berlin