Abstract

The invention relates to a roof covering element (1), in particular clay or concrete roofing tile, having an upper face (2), a lower face (3) opposite the upper face (2), and a passage (4) that extends from the upper face (2) to the lower face (3).

IPC Classes  ?

• H02S 20/25 - Roof tile elements

Abstract

A coupling (1) for connecting a linear drive (2) to a linearly guided slide element (3) having a coupling center piece (4), a ball joint (5) and a sliding joint (6). The ball joint (5) and the sliding joint (6) are arranged on opposite sides of the coupling (1). The ball joint (5) has a joint head (7) and a joint head socket (8), and the sliding joint (6) has a joint head (9) and a joint head socket (10). The joint head socket (8) of the ball joint (5) and/or the joint head socket (10) of the sliding joint (6) has/have a socket space (11, 12) which is open, at least on one side, perpendicularly to the longitudinal axis (L) of the coupling (1).

IPC Classes  ?

• F16C 11/06 - Ball-jointsOther joints having more than one degree of angular freedom, i.e. universal joints

Abstract

Illustrated and described is a method for producing an active element (1) having an internal thread (2), wherein a tool blank (3) is shaped in at least one forming step and wherein the tool blank (3) is equipped with an internal thread (2) in at least one thread production step. The method reduces the manufacturing time, such that productivity can be increased in particular in the mechanical production of active elements, in that the internal thread (2) is formed in the thread production step as a partial thread (4) with thread portions (5), wherein the internal thread (2) does not have any fully circumferential turns (6).

IPC Classes  ?

• B23H 9/00 - Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
• B21D 37/20 - Making tools by operations not covered a single other subclass
• B21D 5/00 - Bending sheet metal along straight lines, e.g. to form simple curves
• B23H 7/02 - Wire-cutting
• F16B 37/08 - Quickly-detachable nuts, e.g. consisting of two or more partsNuts movable along the bolt after tilting the nut

Abstract

The invention relates to a thread forming station (1) comprising a thread forming head (2) and at least two support elements (3) which are opposite each other and between which the thread forming head (2) is secured. In the thread forming head (2), a thread former (4) is secured such that it can be exchanged and the thread forming head (2) can be connected to an articulated shaft (8) of a drive (9) via a coupling piece (7). The thread forming head (2) is particularly simple to mount and dismount such that guide grooves (10) are formed in the support elements (3) and the thread forming head (2) comprises corresponding holding webs (11) on two opposite sides, and that at least one fixing element (12) is secured to a support element (3) when the thread forming head (2) is mounted such that the thread forming head (2) is secured in its position in one direction with respect to the support elements (3) in the longitudinal extension of the guide grooves (10). The invention also relates to a punch press.

IPC Classes  ?

• B21H 3/08 - Making helical bodies or bodies having parts of helical shape internal screw-threads
• B21D 28/00 - Shaping by press-cuttingPerforating
• B23G 1/18 - Machines with one working-spindle
• B23G 3/00 - Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working-spindle
• B23G 7/00 - Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material
• B21D 35/00 - Combined processes according to methods covered by groups
• B23P 23/04 - Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations

Abstract

A coupling (1) for connecting a linear drive (2) to a linearly guided slide element (3) is described, said coupling having a coupling centre piece (4), a ball joint (5) and a sliding joint (6). The ball joint (5) and the sliding joint (6) are arranged on opposing sides of the coupling (1). The ball joint (5) has a joint head (7) and a joint head socket (8), and the sliding joint (6) has a joint head (9) and a joint head socket (10), and the joint head socket (8) of the ball joint (5) and/or the joint head socket (10) of the sliding joint (6) has/have a socket space (11, 12) which is open, at least on one side, perpendicularly to the longitudinal axis (L) of the coupling (1).

IPC Classes  ?

• F16C 11/06 - Ball-jointsOther joints having more than one degree of angular freedom, i.e. universal joints
• F16G 11/09 - Fastenings for securing ends of driving-cables to one another, the fastenings having approximately the same diameter as the cables incorporating hinge joints or pivots for the attachment of the cable ends