Horizon International Inc.

Shinichi Takai

Yoshiyuki Horii

Shigenobu Fukuda

Shigeru Wakimoto

Eiji Katayama

Takehito Yokogi

Nobuyuki Kojima

Shozo Itadori

Masaru Kano

Akira Nonoshita

While a book block (P) is nipped between a pair of clamping plates () and passes through processing units (B to D) in succession, perfect book bind processing is carried out. Two or more of the processing units (B to D) have pairs of members () which engage or come into contact with both sides of a back surface of the book block A thickness of the book block is measured by a measuring unit () before the book binding processing is started. When a thickness of next book block is measured by a measuring unit during the book bind processing of a previous book block, a control section () stores a measured value of the thickness of the next book block in a memory (). When the previous book block reaches a predetermined position on a conveying path, a gap between the pair of members of the processing unit located upstream of a position of the previous book block is adjusted based on the measured value stored in the memory. Thereafter, a gap between the pair of members of the processing unit located downstream of the predetermined position is adjusted based on the measured value stored in the memory when the previous book block passes through the processing unit. After the book bind processing of the previous book block is completed, a gap between the pair of clamping plates is adjusted based on the measured value stored in the memory.

Book binding apparatus for perfect book binding

On a base ( ) are fixed a pair of supporting members ( ). A guide rail ( ) is supported by the pair of supporting members. A measurement block ( ) is guided by the guide rail in a sliding manner. On the base is fixed a reference block ( ) abutted by the measurement block when it has reached one end of the guide rail. A moving-distance measuring device is provided which uses as a zero point a position where the measurement block abuts against the reference block, to measure a distance over which the measurement block has moved with respect to the reference block. The moving-distance measuring device has, on the base, a pair of pulleys ( ) arranged with a gap therebetween in a direction parallel to the guide rail, a belt ( ) engaged over the pair of pulleys and having its part linked with the measurement block, and a rotary encoder ( ) linked to a rotary shaft of one of the paired pulleys. By sandwiching predetermined portions of a book block and a book cover between the reference block and the measurement block, the size can be measured and thus obtained measurement values are input from the measuring device to a controller device. The controller device, based on these measurement values, controls the carrier mechanism and the processing units of the book binding system.

Book binding system

Growing community of inventors

Shiga, Japan

Shinichi Takai