Patent EA-000153-B1 (EA)
Title: Method and device for producing bristled articles produced according thereto
Inventor: WEIHRAUCH GEORG
IPC: A46B3/20
Filed: 1996-02-14
Abstract: 1. Method for producing bristled articles comprising a bristle carrier of elastic material having at least one, preferably cylindrical recess accommodating a cluster of bristles which comprises at its fastening-side end a thickened portion which connects the bristles and whose cross-section is larger than that of the cluster and larger than the narrowest cross-section of the recess and which is driven into the recess by a force acting on the thickened portion and, when the cluster of bristles has been driven in, the thickened portion is held in an interlocking manner as a result of resilient recovery of the bristle material characterized in that cluster axis is approximately coincide with the recess axis and the cluster is driven in due to direct action upon at least the thicken portion. 2. Method for producing bristled articles according to Claim 1 characterized in that an effort to drive in the cluster is applied to a ring-shaped protruding thickened portion, catching the periphery of the bristle cluster. 3. Method for producing bristled articles according to Claim 1 or 2 characterized in that an effort to drive in the cluster is applied universally to all to a ring-shaped protruding thickened portion 4. Method for producing bristled articles according to Claim 1 characterized in that if in a bristle cluster bristles are located ring-shaped and when inserting thickened portion at least partially into a hole effort to drive in a cluster of bristles is applied to the thickened portion inside the hole. 5. Method for producing bristled articles according to Claim 1 characterized in that when forming holes on the bristle carrier with undercutting the effort to insert a cluster of bristles is applied to the thickened portion of the cluster of bristles until the thickened portion reaches the widest cross section of the recess below the undercutting. 6. Method for producing bristled articles according to Claim 1 characterized in that all clusters of bristles or groups of them are driven in recesses of bristle carrier simultaneously. 7. Method for producing bristled articles according to Claims 1-6 characterized in that when inserting bristle cluster into recesses an additional effort is applied to the free end of a bristle cluster. 8. Method for producing bristled articles according to Claims 1-7 characterized in that the bristle carrier made of elastic material and bristle clusters are placed into a rigid frame with a clamp. 9. Device for producing bristled articles comprising a bristle carrier with at least preferably cylindrical recess to receive a bristle cluster, having at its fastening side end a thickened portion, cross-section of which is larger than the narrowest cross-section of the recess and, which is driven into the recess by a force acting on the thickened portion having a receiver for bristle carrier made of elastic material and a mandrel for a cluster of bristle characterized in that the mandrel has a punch, the front end of which can act on the thickened portion of the bristle cluster axially towards the receiver with bristle carrier to drive into the recess to full positioning of the thickened portion. 10. Device for producing bristled articles according to Claim 9 characterized in that the mandrel represents a case embracing the bristle clusters from outside and acting by its ring-shaped end face on the protruding behind the bristles thickened portion of the bristle cluster. 11. Device for producing bristled articles according to Claim 10 characterized in that part of the case acting on the protruding part of the thickened portion has an outside cross-section not bigger than the biggest cross-section of the thickened portion while the rest stretch of the case has a bigger cross-section, thus forming a step. 12. Device for producing bristled articles according to Claim 11 characterized in that the step has a limiter of bristle cluster insertion depth, interacting with the bristle carrier surface. 13. Device for producing bristled articles according to Claim 9 characterized in that in case bristle clusters are hollow, the mandrel repre3sents a pin to be possibly inserted into the hollow bristle cluster and acting by its front end on the thickened portion of bristle cluster, protruding over its inner diameter. 14. Device for producing bristled articles according to Claim 13 characterized in that in case the bristle cluster is hollow and have ring-shaped thickened portion, the punch has a step of lesser diameter to insert the thickened portion into ring-shaped area and a step formed on the punch can possibly act on the inner protruding part of the ring-shaped thickened portion. 15. A bristled article comprising a bristle carrier made of elastic material, having at least one recess to receive a bristle cluster having a thickened portion at its fastening end, the cross-section of which bigger, than the cross-section of the bristle cluster and bigger, than the narrowest cross-section of the recess, and rigidly driven in wherein the bristle cluster located in the carrier is tightly embraced at least thereby due to elastic return deformation characterized in that the bristle carrier made of elastic material with inserted bristle clusters is placed tight into less elastic or rigid frame. 16. A bristled article according to Claim 15 characterized in that on the side, opposite to the bristle cluster, the bristle carrier has hollows to provide axial and/or vertical mobility of the bristle cluster after putting into the brush head. 17. A bristled article comprising a bristle carrier made of elastic material, having at least one recess to receive a bristle cluster, having a thickened portion at its fastening end, the cross-section of which bigger, than the cross-section of the bristle cluster and bigger, than the narrowest cross-section of the recess, and rigidly driven in wherein the bristle cluster located in the carrier is tightly embraced at least thereby due to elastic return deformation characterized in that the bristle carrier made of elastic material represent a handle and have an additional rigidity in the handle zone. 18. A bristled article according to Claim 17 characterized in that in the handle zone the bristle carrier have stiffening inserts or rims. 19. A bristled article according to Claim 17 characterized in that in the handle zone the bristle carrier possess higher rigidity due to the strengthening of the material structure, for example by foaming. 20. A bristled article according to Claim 17 characterized in that in the handle zone the bristle carrier have bigger section than in zone of the bristle cluster. 21. A bristled article according to any Claims 15-20 characterized in that a recess in the bristle carrier has undercutting, wherein the smallest cross-section of the recess is less than the cross-section of the thickened portion of a bristle cluster. 22. A bristled article according to Claim 21 characterized in that the recess has bigger cross-section at its top than cross-section of the bristle cluster having conic narrowing towards the smallest cross-section. 23. A bristled article according to any Claims 15-21 characterized in that a recess represents a through hole in the bristle carrier wherein the thickened portion of the bristle cluster can be inserted into the hole from both sides. 24. A bristled article according to any Claims 15-23 characterized in that the thickened portion of a bristle cluster has spherical, lens-like, disc-like or cylindrical shape. 25. A bristled article according to any Claims 15-23 characterized in that the thickened portion of a bristle cluster has a conic narrowing shape towards the bristle cluster axis.