DD141051A1 - CONNECTING ELEMENT FOR AXES OR WAVES WITH FLAT PARTS - Google Patents

Abstract

Connecting element for releasably connecting a flat part with a shaft or axis, e.g. in office machines to connect of rotating shafts with the parts to be moved are needed. The starting point was to have a connecting element of the type mentioned above find, which to the parts to be connected no additional Requirement, whereby simple technologies are applied and no further securing element is needed. The proposed solution consists essentially of a headboard for receiving the flat part and a conical part for guiding the Wave together. The conical part has a collar different flanks, allowing easy mounting and a difficult dismantling is achieved.

Description

 «- 210258

Title of the invention

Connecting element for axles or yokes with flat parts

Field of application of. invention

The invention relates to a connecting element for releasably connecting axles or shafts with flat parts, as z. B. in office machines for connecting rotating shafts with the parts to be moved are needed.

Characteristics of the known technical solutions There are already a variety of connection options for axles with Plachteilen known. Among other things, in BED-AS 20 40 752 a connection possibility of a flat part with ' j a shaft or axis represented by a plastic part, ^c wherein the plastic part is a substantially U-shaped retaining clip, which is placed transversely to the axial direction on the axis and in which a correspondingly shaped Flaehteil snapped _: is. This connecting element can be unfavorably attached to the shaft end, which is particularly true for viewing surfaces in which aesthetic considerations play a role. In addition, no high torques can be transmitted, and the stability of the right angle position is given only at very precise fitting work.

Furthermore, in particular for the paper holder bars in the known office machines connectivity through screw backup b ^ -w. Penalization known. These solutions are similar in construction, a hollow hub is attached to a flat part according to various technologies, or a stamped part specially bent, and it must be another releasable connection element used as a backup.

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Object of the invention

The aim of the invention is to find a connecting element, which auskommend without additional securing element stabilizes the right angle position between the flat part and shaft and to the parts to be connected no additional requirements j whereby simple technologies can be applied.

Explanation of the essence of the invention

The object of the invention is to find a connection between a rotationssyrametrisehen part and a flat part, wherein the compound is to be made and solved without special aids and can be transmitted with their lateral forces and torques.

According to the invention the object is achieved in that the connecting element consists essentially of a unilaterally rounded cuboid orange headboard with a recess for receiving the flat part, on the open recess side, a conical part for receiving the V / eile followed, wherein the conical part a having the bore corresponding to the diameter of the male shaft, which is slotted on one side continuously to the recess, that the bore has a trapezoidal collar whose front edge has an angle of preferential Ti / 30 and whose.A trailing edge has an angle of preferably 60, wherein, in the mounted state, this collar engages in a correspondingly shaped groove of the shaft, which in this state is also inserted into the opening of the flat part «

The advantages of the invention are to be seen in the fact that the items are economically produced by rational technologies and a very low installation cost is required, "Furthermore, the connecting element can simultaneously serve as a control for a! Papierhalterstange, with its shape or» surface finish is arbitrarily variable. Likewise, the omission of an additional axial securing must be regarded as an advantage.

-3- 210258

performance example

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawing: FIG. 1 shows a longitudinal section of the connecting element; FIG. 2 shows a section A-A according to FIG. 1 pig. 3: a cut B-B after Pig. 1

Pig. 4: a perspective view for connecting a flat part with an axis.

In Figs. 1 ... 4, the connecting element 1 is shown. Fig. 1 shows a longitudinal section. The connecting element has a conical part 11 which is provided with a slot 12 on. The conical part 11 is provided with a bore 13 whose diameter corresponds to that of the rotationally symmetrical part 3 to be connected. Inside this hole is a trapezoidal collar 14, whose flanks 15; 16 have a different inclination.

The outer edge 15 has an inclination of preferably 30 ° with respect to the longitudinal axis and the other edge has an inclination of 60 °. The conical part Ί1 is followed by a head part 17 for receiving the flat part 2. This head part 17 is semicircular and closed on one side, on the other side it is rectangular in shape beyond the conical part and has a recess 18 corresponding to the shape of the male flat part 2, wherein it is open at its front side. The extended part serves to guide the flat part. The rear side is closed in the illustration shown, wherein behind the recess 18 for receiving the flat part 2, a further recess 19 is provided, the diameter of which corresponds to that of the rotationally symmetrical part 3 to be accommodated. The rotationally symmetrical part 3 is connected to the flat part 2 by means of the connecting element, which can be produced predominantly from thermoplastic. · For this purpose, no use of special aids is necessary. Depending on the shape of the breakthrough '21 in the flat part 2, a connection with the rotationally symmetric part via a, form hole or on a cylindrical shape-take place. The rotationally symmetrical part 3 receives a specially shaped groove 31 with different sloping flanks corresponding to the collar 14 of the connector 1 · Thus, an easy assembly, a secure fit and a difficult disassembly allows.

First, the connector 1 is placed without tools on the flat part 2 without tools. The rotationally symmetrical part 3 is inserted into the bore 13 of the conical part of the connecting piece, which is plugged onto the Plachteil 2 and engages with pressure. The collar 14 snaps into the corresponding groove. This connection option is applicable for each connection shaft flat part and makes no special demands on the flat part and the rotationally symmetric part. In the sketch shown in FIG. 4, the flat part is placed at the end of a shaft or axis. By opening the closed back 17 is a use at any point of the axis or shaft possible, in which case no additional lateral securing elements are required. The solution presented is used in a typewriter Tapierstangenhalter. The outer shape of the connecting element can be varied as desired, so that it u. a. can also serve as a control for the paper holder rod.

Claims (1)

- 5 - 210 invention claim Connecting element for releasably connecting a Plachteils with a shaft or axis, characterized in that the connecting element (1) substantially e'ein one side rounded cuboid head part (17) having a recess (18) for receiving the flat part (2), at the open recess side is a conical part <11) for receiving the shaft (3) adjoins, wherein the conical part (11) has a diameter of the male shaft corresponding bore (13) which is continuous on one side to the recess (18) slotted is that the bore (13) has a trapezoidal collar (14) whose front edge at an angle of preferably 30 ° _un c [whose rear edge has an angle of preferably 60 °, wherein in the assembled state, this collar in a correspondingly shaped Groove (31) of the shaft (3) engages, which is also inserted in this state in the opening (21) of the flat part (2). For this / J page drawing