Abstract: The present invention relates to a rotation angle detection device mainly used for rotation angle detection of a steering wheel of an automobile and the like. In the rotation angle detection device of the present invention, support portions for supporting lower surfaces of magnets and retention portions for retaining upper surfaces of the magnets are provided in respective accommodation portions of first and second detection bodies. The magnets are turned in the accommodation portions, and the magnets are press-fitted into lower surfaces of the retention portions so as to be retained and fixed between the support portions and the retention portions. Thereby, an inexpensive rotation angle detection device in which the magnets can be easily and reliably installed in the detection bodies with a simple configuration without individually using holders can be realized.

Abstract: A rotation angle detection device includes rotary body 1 rotating in linked motion with a steering wheel; detectors 2 and 3 that rotate in linked motion with rotary body 1; detecting parts 5 and 6 for detecting rotation of detectors 2 and 3; control part 21 for detecting a rotation angle of rotary body 1 from a detection signal from detecting parts 5 and 6; latching body 23 for latching the rotation of rotary body 1; and case 8 containing rotary body 1, detection parts 5 and 6, control part 21 and latching body 23. Latching body 23 includes latching part 23B urged by elastic body 24 and brought into elastic contact with an outer periphery of rotary body 1; and releasing part 23C for releasing an elastic contact of latching part 23B to rotary body 1 and a part of which is exposed to the outside of case 8.

Abstract: A rotation angle detector includes a rotator, first and second detecting bodies, an auxiliary detecting body, first and second detectors, an auxiliary detector, and a controller. The first detecting body rotates in association with the rotator, and the first detector detects rotation of the first detecting body. The second detecting body rotates in association with the first detecting body at a different speed therefrom, and the second detector detects rotation of the second detecting body. The auxiliary detecting body is engaged with the rotator at a position symmetrical to the first detecting body with respect to a rotation axis of the rotator. The auxiliary detector detects rotation of the auxiliary detecting body. The controller detects a rotation angle of the rotator based on detection signals from the first, second, and auxiliary detectors.

Abstract: A rotation angle detection device including angle Rotary body 1 rotating in linked motion with a steering wheel; detectors 2 and 3 rotating in linked motion with rotary body 1; detecting parts 5 and 6 for detecting rotation of detectors 2 and 3; control part 21 for detecting a rotation angle of rotary body 1 from a detection signal from detecting parts 5 and 6; latching body 23 for latching the rotation of rotary body 1; and case 8 containing rotary body 1, detection parts 5 and 6, control part 21 and latching body 23. Latching body 23 includes latching part 23B urged by elastic body 24 and brought into elastic contact with an outer periphery of rotary body 1; and releasing part 23C for releasing an elastic contact of latching part 23B to rotary body 1 and a part of which is exposed to the outside of case 8.

Abstract: The present invention relates to a rotation angle detector for use mainly in detecting rotation angles of a vehicle's steering shaft, with a simplified and low-cost configuration. For this purpose, a first detection head and a second detection head are disposed perpendicularly to a rotor, and a spur gear formed outside the periphery of the first detection head is allowed to engage with a face gear formed on the bottom face of the periphery of the rotor. This can provide the first detection head with a simplified configuration in which magnetic sensors are provided together with a controller on a single circuit board. The configuration enables the rotation angle detector to perform the detection reliably and cheaply.

Abstract: A rotation angle detector includes a rotator, first and second detecting bodies, an auxiliary detecting body, first and second detectors, an auxiliary detector, and a controller. The first detecting body rotates in association with the rotator, and the first detector detects rotation of the first detecting body. The second detecting body rotates in association with the first detecting body at a different speed therefrom, and the second detector detects rotation of the second detecting body. The auxiliary detecting body is engaged with the rotator at a position symmetrical to the first detecting body with respect to a rotation axis of the rotator. The auxiliary detector detects rotation of the auxiliary detecting body. The controller detects a rotation angle of the rotator based on detection signals from the first, second, and auxiliary detectors.

Abstract: A rotational angle detector has a rotary body, a first detecting unit rotating in cooperation with the rotary body, a second detecting unit rotating in cooperation with the first detecting unit, and an auxiliary detecting unit rotating in cooperation with the rotary body and the second detecting unit. The rotational angle detector has a first detecting element, a second detecting element, and a controller. The first detecting element detects rotation of the first detecting unit, and the second detecting element detects rotation of the second detecting unit. The controller detects a rotational angle of the rotary body based on a detection signal supplied from the first detecting element and a detection signal supplied from the second detecting element.

Abstract: The present invention relates to a rotation angle detector for use mainly in detecting rotation angles of a vehicle's steering shaft with a simplified and low-cost configuration. For the purpose, the first detection head and the second detection head are disposed perpendicularly to the rotor, and the spur gear formed outside the periphery of the first detection head is allowed to engage with the gear formed on the bottom of the periphery of the rotor. This can provide the first detection head with a simplified configuration and can form magnetic sensors together with a controller on a single circuit board. The configuration enables the rotation angle detector to perform the detection reliably and cheaply.

Abstract: A rotational angle detector includes a rotor, a detecting body, a light emitting device, an annular-shaped light receiving device, and a controller. The detecting body rotates relatively to the rotor and is provided with a light transmitting path, which permits light to pass in a direction parallel to a rotating axis thereof. The light emitting device is provided at a position to emit light toward the detecting body in a direction parallel to the rotating axis of the detecting body. The light receiving device is arranged on an opposite side of the detecting body with respect to the light emitting device and outputs a light receiving range. The controller is connected to the light receiving device and detects a rotational angle of the rotor based on the light receiving range output from the light receiving device.

Abstract: A rotation angle detector has a rotary member which is rotated in association with a steering shaft, detecting members each of which is rotated in association with the rotary member, magnets which are arranged in correspondence to these detecting members and rotated integrally with these corresponding detecting members, magnetic sensing devices which are arranged opposed to the respective corresponding magnets, and a controlling circuit for calculating a rotation angle of the steering shaft based on detection signals from the magnetic sensing devices, wherein at least one of the magnets has a first section on a side of the magnetic sensing device, and a second section on a side opposite to the magnetic sensing device, and the north pole and the south pole of the first section are arranged in a reversed manner to those of the second section.

Abstract: A rotational angle detector has a rotary body, a first detecting unit rotating in cooperation with the rotary body, a second detecting unit rotating in cooperation with the first detecting unit, and an auxiliary detecting unit rotating in cooperation with the rotary body and the second detecting unit. The rotational angle detector has a first detecting element, a second detecting element, and a controller. The first detecting element detects rotation of the first detecting unit, and the second detecting element detects rotation of the second detecting unit. The controller detects a rotational angle of the rotary body based on a detection signal supplied from the first detecting element and a detection signal supplied from the second detecting element.

Abstract: A rotation angle detector has a rotary member which is rotated in association with a steering shaft, detecting members each of which is rotated in association with the rotary member, magnets which are arranged in correspondence to the respective detecting members and rotated integrally with the respective corresponding detecting members, magnetic sensing devices which are arranged as opposed to the respective corresponding magnets, and a controlling circuit for calculating a rotation angle of the steering shaft based on detection signals from the magnetic sensing devices, wherein at least one of the magnets has a first section on the side of the magnetic sensing device, and a second section on the side opposite to the magnetic sensing device, and the north pole and the south pole of the first section are arranged in a reversed manner to those of the second section.

Abstract: The present invention relates to a printing apparatus for use with portable terminals, measuring instruments, etc. and more particularly to a printing apparatus equipped with a paper cutter having a function for cutting recording paper after printing, and it aims at providing a printing apparatus equipped with a paper cutter that is small, light and thin with considerably a simple structure. In order to achieve this object, the printing apparatus equipped with a paper cutter of the invention is so constructed that a portion of a cutter motor (31) fits in a space provided adjacent to a printer motor (25) when a cutter unit (27) and a printer unit (21) are assembled in piles, and, with this structure, either both or one of the motors are able to utilize efficiently spaces or a space available adjacent to the both or the other of the motors, thereby providing the printing apparatus equipped with a paper cutter, which is small, light and thin with considerably a simple structure.