Brother Kogyo Kabushiki-kaisha

Brother Industires, Ltd.

Brother Kogyo Kaisha

Akira Asai

Susumu Kuzuya

Hiroshi Onoda

Takayuki Iwase

Toshio Nakai

Kazuo Nakamura

Atsuo Sakaida

Tomoyoshi Watanabe

Toshikatsu Kondo

Yukio Hishida

Yuichi Asai

Chiaki Miyazawa

Yoshiyuki Karube

Yoshikatsu Hirata

Masami Hanazono

Tetsuro Ueno

A pair of pulleys are rotatably provided between a pair of long frames in the neighborhood of both ends thereof. An endless belt is put over the pulleys, wherein the teeth which mesh with the pulleys are provided on the inner surface of the endless belt. A row of pins which fit into the perforations in a document is provided in the outer feeding surface of the endless belt. A groove extending in the longitudinal direction of the belt is formed in the central portion of the teeth trains of the belt. A rib projecting from the upper surface on which the belt slides and extending in the feeding direction of the document is formed in one of the frames. Since the belt moves in a state in which the rib is fitted into the groove of the belt, the belt runs without deviating from the line which connects between the pulleys.

Tractor having an endless belt with driving pins

A character selection mechanism for a typewriter having a single type head with characters arranged in rows and columns thereon, which mechanism comprises, for either row selection and column selection similarly, a series of cams, a series of cam followers, a series of transmitting members, and an output member, as one set. The cams are fixed on a cam shaft which is rotated once in response to depressing of any one key. Each of the cam followers is rotated by each corresponding cam and is shifted, against a biasing force, by each corresponding transmitting member from a first position to a second position in response to depressing of the corresponding key. The cam follower engages the output member at the second position for controlling its operation based on the rotation of the cam shaft. The output member is connected to the type head via a connecting mechanism.

Character selection mechanism for a typewriter

An electric typewriter having a prevention mechanism for preventing printing errors caused by a depression of a few keys in very rapid succession. The prevention mechanism includes a lock member for locking a clutch, which is interposed between a drive motor and a printing mechanism, in a disengaged condition. The lock member is normally held in a non-operational position for allowing the clutch to be engaged, and is moved in response to a special operation of a sensing member to an operational position for keeping the clutch in a disengaged condition. The sensing member is so disposed as to be moved in a distinct way different from the normal operation mode when a few keys have been depressed in very rapid succession.

Typewriter

A power operated typewriter having an end of line locking mechanism comprises a clutch interposed between a drive motor and a printing mechanism, a control lever for engaging the printing clutch to print a character by the printing mechanism when a key lever is depressed, and lock means for locking the control lever so as to hold the printing clutch in its disengaged condition, which can prevent any printing operation even if the key lever is depressed after the right-hand margin position has been reached and is operative.

End of line locking mechanism for power operated typewriter

A single element print head having an apparatus for firmly and releasably attaching itself to the drive shaft of a typewriter. The body of the print head is provided with a central opening therethrough for receipt of the drive shaft. A cap is secured on the body around one end of the opening with the purpose of slidably holding a manual slide member in its guide recess and fixedly holding a base portion of a hair pin shaped spring in its holding groove. The spring has a pair of arms for firmly fastening therebetween, and for releasing the drive shaft by virtue of its resilience and the action of a pair of cam surfaces. The pair of cam surfaces are formed in the bottom portion of the slide member, diverging from one end to the other end like a front portion of a bullet, for expanding the arms from each other to release the arms from the drive shaft by means of the slide movement of the slide member.

Single element print head

A wire printer printing head comprises a support member, a plurality of printing elements having a print wire with a flap-armature electromagnet and a sound absorbing cover. The printing element are radially and slidably mounted to the support member and adjustable to a mounting position of each printing element with respect to the support member by an eccentric pin. The sound absorbing cover composed of a core plate and sound absorbing material is secured to the support member and surrounds all printing elements.

Wire printer printing head

A flap-armature electromagnet comprises a U-shaped yoke, a pole core, a coil, a flap-armature, a compression spring and a coil spring. The flap-armature is rockingly supported on the yoke by means of projections formed at the upper rear end of the yoke and notches formed at both sides of the flap-armature. Each end of the coil spring is connected to each of the projections for pressing the flap-armature on a rocking axis of the flap-armature.

Growing community of inventors

Nagoya, Japan

Akira Asai