Electronic driven jacquard apparatus and cassette for use therein

Abstract

An electronic driven jacquard apparatus includes a cassette having a select head pivotally selectable between a contacting posture contacting a select pin and a non-contacting posture not contacting the select pin in association with a bending movement of an operational member comprised of a piezoelectric body and a retaining pin providing a pivot for the select head, a jacquard machine body for fixedly supporting the cassette and a reciprocating mechanism for reciprocating the jacquard machine body along a longitudinal direction of the select pin. An end of the select pin facing the select head has a cubically convex shape whereas an end of the select head facing the select pin has a corresponding concave portion for receiving therein the cubically convex end of the select pin.

Description

technical field [0001] The present invention relates to an electronic jacquard device, and to a cassette for an electronic jacquard used in the device. Background technique [0002] The jacquard machine is a device equipped to control the position of multiple threads hanging on the machine table, and is a device for positioning each thread or multiple threads as a group of processing selection pins. Here, the selection pin equipped on the machine bed is biased in the direction of approaching or departing from the jacquard machine in its longitudinal direction. [0003] On the other hand, the jacquard main body is provided with a reciprocating mechanism for reciprocating the jacquard main body in the length direction of the selector pin, and the jacquard main body The relative positional relationship with the selection pin in the above-mentioned length direction changes. In the positional relationship where the main body of the jacquard machine and the selection pin are in ...

AI Technical Summary

Problems solved by technology

[0015] Furthermore, regarding the relationship between the selection head 8 and the selection pin guide surface 19 described above, because the contact between the two is a line contact, it will be as follows: Figure 13 (f) As indicated by the lower right arrow, the selector head 8 pops up, making it difficult to obtain a stable abutting posture, which causes malfunctions

[0016] Furthermore, in the case where the selection head 8 acts on the selection head 8 for some reason to bias the selection head 8 toward the non-contact posture side, as in Figure 13 As shown in (g), there is a problem that an occasional swinging force (indicated by a leftward arrow) acts on the operating body 9 as a piezoelectric element.

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