Nissin Kogyo Co., Ltd.

Nissin Nogyo Co., Ltd.

Tsutomu Amano

Atsushi Nakajima

Yusuke Genno

Kazuhiro Ohta

Takashi Aoki

Masashi Kobayashi

Takaomi Shirase

Naotoshi Tamai

Atsushi Shimizu

Kazuhiro Ota

Mitsuhiro Hanaoka

Shuichi Shimizu

A first molded body comprises a joint area a first regulating projection and a first guide surface connecting an internal side surface of the first regulating projection to the joint area and a second molded body comprises a welding projection constructed to be welded to the joint area at a distal end thereof, a second regulating projection constructed to closely confront the first regulating projection when vibration welding of the welding projection to the joint area is completed and a second guide surface connecting an external side surface of the welding projection to an internal side surface of the second regulating projection Burrs produced during vibration welding of the welding projection to the joint area are guided by the first guide surface toward the internal side surface of the second regulating projection along the internal side surface of the first regulating projection and then they are further guided by the second guide surface toward the external side surface of the welding projection

Resin component

A first molded body comprises a joint area , a first regulating projection and a first guide surface connecting an internal side surface of the first regulating projection to the joint area , and a second molded body comprises a welding projection constructed to be welded to the joint area at a distal end thereof, a second regulating projection constructed to closely confront the first regulating projection when vibration welding of the welding projection to the joint area is completed and a second guide surface connecting an external side surface of the welding projection to an internal side surface of the second regulating projection . Burrs produced during vibration welding of the welding projection to the joint area are guided by the first guide surface toward the internal side surface of the second regulating projection along the internal side surface of the first regulating projection , and then they are further guided by the second guide surface toward the external side surface of the welding projection

A reed switch unit for detecting a liquid level of a reservoir tank of a master cylinder includes a reed switch , including a contact portion sealed in a glass tube , and reed portions extending respectively from opposite ends of the glass tube in a direction of an axis thereof. The reed switch unit further includes a unit main body including terminals which support the reed portions and , respectively, in electrically-connected relation thereto to fix the reed switch . The reed switch is fixed to the unit main body in such a manner that the glass tube is disposed in non-contact relation to the unit main body

Reed switch unit

A first molded body comprises a joint area a first regulating projection and a first guide surface connecting an internal side surface of the first regulating projection to the joint area and a second molded body comprises a welding projection constructed to be welded to the joint area at a distal end thereof, a second regulating projection constructed to closely confront the first regulating projection when vibration welding of the welding projection to the joint area is completed and a second guide surface connecting an external side surface of the welding projection to an internal side surface of the second regulating projection Burrs produced during vibration welding of the welding projection to the joint area are guided by the first surface toward the internal side surface of the second regulating projection along the internal side surface of the first regulating projection and then are further guided by the second guide surface toward the external side surface of the welding projection

A reed switch unit,for detecting a liquid level in a reservoir,of a master cylinder which comprises a reed switch,including a contact part,which is sealingly contained in a glass tube,, and lead portions,which axially extend from opposite ends of the glass tube,, and a unit body,provided with terminals,for respectively supporting the lead portions,so as to be electrically connectable thereby to fix the reed switch,. The lead portions,and the terminals,are connected with each other by means of a resistance welding. Accordingly, it is possible to provide a reed switch unit which is improved in quality as well as enhanced in productivity, by mounting a reed switch on a unit body without conducing soldering.

Switch unit

In a brake hydraulic controller for controlling a hydraulic pressure from a master cylinder operative to a wheel brake, the controller includes a base, a normally open electromagnetic valve for connecting the master cylinder and the wheel brake, a reservoir, a normally closed electromagnetic valve for connecting the wheel brake and the reservoir, a return pump for returning hydraulic fluid received from the reservoir to the master cylinder, a damper, and a cover for covering the normally open and closed electromagnetic valves, the reservoir, and the damper with a surface of the cover. The cover includes a seal groove and a sealing member fitted to the seal groove for elastically contacting the surface. The brake hydraulic controller can minimize the number of parts required for waterproofing and reduce the number of manhours required for assembling.

Brake hydraulic controller

A hydraulic pressure controller includes: a base; a n electromagnetic valve mounted on the base and including a guide cylinder protruding from the base, a coil unit having a bobbin surrounding the guide cylinder and a coil wound on the bobbin, and a magnetic path forming frame connecting magnetically a first end and a second end of the guide cylinder; a reservoir and a damper arranged with the electromagnetic valve on the base; and a cover covering the electromagnetic valve, the reservoir and the damper, in which the cover includes a frame coupled to the base, the frame surrounding the electromagnetic valve, and a skirt portion formed integrally with the frame, the skirt portion covering the reservoir and the damper. The hydraulic pressure controller is light in weight and is improved in assembling efficiency. The hydraulic pressure controller has a reservoir water-proofing structure which is capable of preventing water from entering an outside air communicating chamber of the reservoir.

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Nagano, Japan

Tsutomu Amano