DEVICE FOR AND METHOD OF CONNECTING TWO ITEMS TOGETHER

摘要

A method of manufacturing a part of a device including a first part and a second part which are inter-engageable with one another, the first part having a first longitudinal axis and a connecting face which extends substantially transversely to the first longitudinal axis and includes an engagement formation which extends substantially axially, and the second part having a second longitudinal axis and a connecting face which extends substantially transversely to the second longitudinal axis and includes a receiving formation which extends substantially axially and in which the engagement formation of the first part is receivable, wherein each of the engagement formation and the receiving formation includes a substantially helicoidal surface which extends at least partially around the longitudinal axis of the respective part of the device, such that rotation of the two parts relative to one another about the longitudinal axes, when the two parts are substantially co-axially aligned, such that the connecting faces of the two parts face one another in a substantially axial direction, causes engagement of the engagement formation of the first part with the corresponding receiving formation of the second part, the method including: providing a mould including a body and a connecting face which includes engagement formations corresponding to those of one of the first and the second part of the device, wherein the connecting face is separable from the mould body, contacting the connecting face of the mould with a mouldable material, to produce engagement formations on a face of the mouldable material, so as to form the other part of the device, and separating the connecting face from the mould body to remove the moulded part of the device from the mould.

主权项

1. A method of manufacturing a part of a device including a first part and a second part which are inter-engageable with one another, the first part having a first longitudinal axis and a connecting face which extends substantially transversely to the first longitudinal axis and includes an engagement formation which extends substantially axially, and the second part having a second longitudinal axis and a connecting face which extends substantially transversely to the second longitudinal axis and includes a receiving formation which extends substantially axially and in which the engagement formation of the first part is receivable, wherein each of the engagement formation and the receiving formation includes a substantially helicoidal surface which extends at least partially around the longitudinal axis of the respective part of the device, such that rotation of the two parts relative to one another about the longitudinal axes, when the two parts are substantially co-axially aligned, such that the connecting faces of the two parts face one another in a substantially axial direction, causes engagement of the engagement formation of the first part with the corresponding receiving formation of the second part, the method including:
providing a mould including a body and a connecting face which includes engagement formations corresponding to those of one of the first and the second part of the device, wherein the connecting face is separable from the mould body, contacting the connecting face of the mould with a mouldable material, to produce engagement formations on a face of the mouldable material, so as to form the other part of the device, and separating the connecting face from the mould body to remove the moulded part of the device from the mould.