Method of assembling roof sheets to roof bows

Details Method of assembling roof sheets to roof bows Method of assembling roof sheets to roof bows

1974-12-20

1976-06-08

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156309, 427300, 428139, B23B 3100

Patent

active

039620158

ABSTRACT:
In the making of vehicle bodies such as truck and trailer bodies, the roof sheets are secured to the roof bows by means of a hot melt adhesive. Premature cooling of the adhesive which otherwise does not allow sufficient time to position the roof sheet and then mate it with the roof bows properly after the adhesive is applied, is prevented by employing a heat-insulating layer of glass fiber scrim cloth on the roof bows and upon which the hot melt adhesive is applied. Temporary clamping pressure forces the hot melt adhesive through the pores of the scrim cloth and into contact with the roof bows whereupon it rapidly cools and sets. The presence of the scrim cloth provides a substantial increase in the otherwise unacceptably low bonding strength of the hot melt adhesive.

REFERENCES:
patent: 2650185 (1953-08-01), Larson et al.
patent: 3850725 (1974-11-01), Spielau et al.

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