Patent ID: 7401632

Claim:
Apparatus of pressing for use in manufacturing glued laminated wood which is made of a number of wood sheets having a predetermined length, width and thickness, and laminated together by hot pressing with a thermosetting adhesive in such a way that a multiple-layered board of the glued laminated wood is made, comprising: a pair of heating plates disposed one above the other and having pressing surfaces facing each other and both of which are vertically movable toward and away from each other; a wood sheet supply device arranged to supply a wood sheet having one surface thereof coated with the thermosetting adhesive to each of upper and lower sides of an in-process board of the glued laminated wood for lamination of the wood sheet to said each of the upper and lower sides of said in-process glued laminated wood board; a board carrier arranged to carry thereon said in-process glued laminated wood board and reciprocatingly moving said in-process glued laminated wood board horizontally between a first position where at least part of said in-process glued laminated wood board having said supplied wood sheets thereon are placed between said pair of heating plates and a second position where said at least part of the in-process glued laminated wood board is placed horizontally away from said first position; a control which is arranged to control the operation of said paired heating plates, wood supply device and board carrier in such a way that a wood sheet having one surface thereof coated with the thermosetting adhesive is supplied to one side of the in-process glued laminated wood board which one side is adapted to face one heating plate of said paired heating plates and said in-process glued laminated wood board is moved by said board carrier to said first position at latest before said one heating plate is vertically moved toward the other heating plate to a pressing position where the distance between the pressing surface of said one heating plate and the surface coated with the thermosetting adhesive of the wood sheet supplied to said one side of the in-process glued laminated wood board substantially corresponds to the thickness of the respective wood sheet and also that, after said one pressing plate has vertically moved to said heating position, another wood sheet having one surface thereof coated with the thermosetting adhesive is supplied to the other side of the in-process glued laminated wood board at latest before said other heating plate is vertically moved toward said one heating plate until the wood sheets supplied to the opposite sides of the in-process glued laminated wood board are pressed thereto under a predetermined pressure, and the wood sheets are kept pressed under said predetermined pressure for a predetermined length of time.