APPARATUS FOR MAKING AN ADAPTOR WHICH IS USED IN HEATING AND VENTILATION SYSTEMS

摘要

Apparatus (120) for making an adaptor (2) which is used in heating and ventilation systems and which is used to connect ducting which is of a square cross sectional shape to ducting which is of a circular cross sectional shape, which apparatus (120) comprises:
(i) a work area (24) for receiving sheet metal (127) to be made into the adaptor (2);(ii) a creasing member (28) which is for creasing the sheet metal (127) on the work area (24);(iii) a pivot member (122) about which the sheet metal (127) is pivoted on the work area such that the creasing member (28) is able to make a plurality of creases (146) which are in the sheet metal (127) and which extend from the pivot member (122) in order to produce a transition part of the adaptor (2) which is positioned between a first end of the adaptor (2) which is of the square cross sectional shape and a second end of the adaptor (2) which is of the circular cross sectional shape;(iv) operator means (32) for causing the creasing member (28) to operate and crease the sheet metal (127);and which apparatus (120) is characterised in that:(v) the pivot member (122) comprises a plate portion (124) which locates in use in a V-shaped slot (126) in the sheet metal (127), and a shank portion (128) which mounts the plate portion (124) on the apparatus (120); and(vi) the plate portion (124) is pivotable with respect to the work area (24) to enable the sheet metal (127) to pivot on the work area (24). (FIG. 16)

主权项

1. Apparatus for making an adaptor which is used in heating and ventilation systems and which is used to connect ducting which is of a square cross sectional shape to ducting which is of a circular cross sectional shape, which apparatus comprises:
(i) a work area for receiving sheet metal to be made into the adaptor; (ii) a creasing member which is for creasing the sheet metal on the work area; (iii) a pivot member about which the sheet metal is pivoted on the work area such that the creasing member is able to make a plurality of creases which are in the sheet metal and which extend from the pivot member in order to produce a transition part of the adaptor which is positioned between a first end of the adaptor which is of the square cross sectional shape and a second end of the adaptor which is of the circular cross sectional shape; and (iv) operator means for causing the creasing member to operate and crease the sheet metal; and which apparatus is characterised in that: (v) the pivot member comprises a plate portion which locates in use in a V-shaped slot in the sheet metal, and a shank portion which mounts the plate portion on the apparatus; and (vi) the plate portion is pivotable with respect to the work area to enable the sheet metal to pivot on the work area.