Meinan Machinery Works, Inc.

Norio Shibagaki

Katsuji Hasegawa

Matsunaga Tsuruta

Yoshinori Koba

Kenichi Hiraiwa

Mikio Tsutsui

Takayuki Yamauchi

Kiichi Yamamoto

Katsuhito Okada

Tokuro Nakabayashi

Teruo Fujie

Masanori Nagai

Akira Itoh

An apparatus for and a method of bonding veneers without problems in manufacturing process even if logs, which causes disorder of veneers after dried are used. The veneer bonding apparatus for bonding veneers to each other comprises: a bonding face machining device for machining both end portions of a veneer to be bonded to bonding faces; a bonding agent applying device for applying bonding agent to at least one bonding face of the machined bonding faces; an adjusting device for adjusting a front end bonding face of a succeeding veneer to a rear end bonding face of a preceding veneer such that a face side of the preceding veneer with the applied bonding agent and a backside of the succeeding veneer with the applied bonding agent are flush with each other; and a pressurizing device for pressurizing the adjusted bonding faces to each other.

Veneer bonding apparatus, veneer bonding method, bonded veneers, and

An unseasoned veneer bonding method and an apparatus therefor capable of bonding unseasoned veneers to each other without being affected by the moisture content of the unseasoned veneers and with ease. The unseasoned veneer bonding method comprising the steps of: machining an end portion of at least one unseasoned veneer of unseasoned veneers with prescribed thickness to be bonded to form a portion thinner than the prescribed thickness; overlapping the thinner portion of the one unseasoned and an end portion of the other unseasoned veneer to each other through thermosetting bonding agent; and press-contacting a heating body to at least the thinner portion.

Unseasoned veneer bonding method and apparatus therefor

A substantially uncurved and unwaved plywood includes at least one pair of veneers located symmetrically with respect to a middle of a thickness of the plywood and having unstraight grains which coincide with each other. A method for producing a substantially uncurved and unwaved plywood comprises locating at least one pair of veneers with identical unstraight grains in a pair of positions symmetrical with respect to a middle of a thickness of a plywood to be produced, in such a manner than the grains of the veneers coincide with each other. A simple method for continuously preparing pairs of veneers with identical unstraight grains comprises (i) peeling from a cylindrical log with unstraight fibers a continuous sheet of twice a thickness of each one of a pair of veneers to be prepared, (ii) cutting the sheet into a predetermined length to provide a thick veneer, and (iii) slicing the thick veneer at a middle of a thickness thereof to prepare a pair of veneers with equal thicknesses and with identical unstraight grains. Another simple method for continuously preparing pairs of veneers with identical unstraight grains includes slicing the continuous sheet before cutting into the predetermined length. Other methods for continuously preparing pairs of veneers with identical unstraight grains are also disclosed.

Substantially uncurved and unwaved plywood produced by using veneers

Growing community of inventors

Obu, Japan

Norio Shibagaki