Nagano Keiki Co., Ltd.

Yuri Sugahara

Yasuhisa Tanaka

Nobuaki Kawase

Hiroyuki Toba

Hidebumi Seki

A physical quantity measuring device includes a cylindrical case, a cap member, and a sealing member. The cap member covers a circumferential portion of a through-hole of the cylindrical case, while the sealing member provides a seal between the through-hole and the cap member. The cap member is pivotally supported by an attachment target portion of a lid member so that the cap member is rotatable between a first orientation and a second orientation. A cap member engagement portion is insertable into an engagement-portion insertion hole in the first orientation and is engageable with the attachment target portion in the second orientation. A linear member of the sealing member is located, in the first orientation, in a region in a rotation direction from the first orientation to the second orientation. The linear member prevents loss of the cap member and is replaceable, together with the seal member, if damaged.

Physical quantity measuring device with improved cap sealing

A physical quantity measuring device includes a cylindrical case provided with a through hole, a sensor module, a joint, a cap member, a circuit board including an electronic circuit and an electronic adjuster, a sealing member attached to the through hole, and an adjuster member capable of adjusting the electronic adjuster. The electronic adjuster includes an engaged portion disposed to face the through hole. The sealing member is provided with a housing recess opened to an outside of the cylindrical case, and a communication hole for bringing the housing recess into communication with an interior of the cylindrical case. The adjuster member includes a shaft that is hermetically attached in the communication hole, an engagement portion provided at a first end of the shaft to be engageable with the engaged portion, and an operable portion provided at a second end of the shaft and housed in the housing recess.

Physical quantity measuring device

A physical-quantity-measuring device includes: an outer-case including a bottom and a cylindrical body; a synthetic-resin-made inner-case provided inside the outer-case; a detector that detects a physical quantity; a terminal base including a terminal for transmitting a signal from the detector outward; a cover covering an opening of the outer-case and being different in hardness from the inner-case; a cable whose first end is connected to the terminal; and a cylindrical-cable-drawing portion drawing a second end of the cable and projecting from a circumferential surface of the outer-case. The inner case includes: a case threaded-portion; and a terminal-base-setting portion on which the terminal base is set. The detector includes: a bottom connector connected to the bottom; and a joint attachable to a target. The cover includes: a cover body covering the terminal-base-setting portion; and a cover threaded-portion provided to the cover body and screwable with the case threaded-portion.

Growing community of inventors

Tokyo, Japan

Yuri Sugahara