JP2013108430A - Connector tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector tool that has a relatively simple configuration and higher durability.SOLUTION: The connector tool includes: a housing for connecting and holding together a handlebar of a vehicle and a throttle grip side that is provided at one end of the handlebar and can rotate around the axis of the handlebar; and a sensor unit 5 for detecting the angle of rotation of the throttle grip, the sensor unit being provided to the housing. The sensor unit 5 includes: a metal body 5a that turns about the axis of the throttle grip in tandem with the rotation of the throttle grip; and a coil part 5c that is fixed to the housing and is not in contact with the metal body 5a, wherein the inductance of the coil part 5c is changed by changes to an overlap region where the metal body 5a is projected over the coil part 5c in association with the turning of the metal body 5a.

Description

  The present invention relates to a connector for connecting a handlebar and a throttle grip side.

  2. Description of the Related Art Conventionally, vehicles such as motorcycles have been connected with a throttle grip side provided at one end of a handlebar and connected to the engine side via a wire cable to transmit the rotation angle of the throttle grip. Yes. In the connection tool using a wire cable, the trouble of maintenance of a wire cable becomes complicated. Moreover, the connection feeling using a wire cable changes the operational feeling of the throttle grip as the wire cable deteriorates. Furthermore, in the connection tool, since the wire cable is relatively expensive, it also becomes a cause of hindering the cost reduction of the entire vehicle. For this reason, some connecting devices detect the rotation angle of the throttle grip and electrically transmit it to the engine side instead of the wire cable.

  As a throttle device as this type of connector, as shown in FIG. 11, one that detects the amount of rotation of the throttle grip 121 using a magnetic sensor 126 is known (for example, Patent Document 1).

  The throttle device of Patent Document 1 is provided with an enlarged diameter portion 127 that holds the magnet 128 of the magnetic sensor 126 on the outer periphery of the extending portion 124 of the throttle grip 121. In the throttle device, the hall sensor 129 of the magnetic sensor 126 is provided in the right switch box 125, and the enlarged diameter portion 127 and the hall sensor 129 are opposed to each other in the axial direction of the right handlebar 115. In the throttle device, a return spring 135 that biases the throttle grip 121 toward the closing side is disposed on the handle front end side (the side where the switch 132 is disposed) in the right switch box 125. In the throttle device, one coil end of the return spring 135 is engaged with the positioning protrusion 131, and the other coil end is engaged with the engagement protrusion 136 on the outer periphery of the extension portion 124. The throttle grip 121 includes a sleeve 122 and a grip body 123 that is integrally attached to the outer periphery of the sleeve 122. An anti-vibration handle weight 115 a is attached to the distal end side of the right handle bar 115.

  As another throttle device which is another connecting tool, there is also known one provided with a throttle sensor unit 220 constituting a resistance type potentiometer for detecting the rotation angle of the throttle pipe 206 as shown in FIG. Patent Document 2).

  In the throttle device of Patent Document 2, a throttle sensor unit 220 and a throttle return mechanism 240 that applies a biasing force in a direction to return the handle grip 203 to the initial position are housed in a throttle housing 210. The throttle housing 210 includes an upper housing half 210a and a lower housing half 210b. The throttle sensor unit 220 includes a movable contact 225 of a potentiometer attached to the protrusion 224 of the rotating member 223 and a fixed contact 230 of the potentiometer. The throttle sensor unit 220 has a wiring 232 connected to the fixed contact 230 and outputting a sensor signal. In the throttle device, a throttle pipe 206 is rotatably supported on a handle bar 202 within a predetermined angle. A handle grip 203 is attached to the outer periphery of the throttle pipe 206. Note that a seesaw type kill switch 205a, a push button type hazard lamp switch 205b, and a starter switch 205c are attached to the throttle housing 210 fixed to the handle bar 202 as a plurality of handle switches.

JP 2009-13834 A JP 2009-287411 A

  By the way, the above-described throttle device disclosed in Patent Document 1 has a structure in which the amount of rotation of the throttle grip 121 is detected using the magnet 128 of the magnetic sensor 126 and the Hall sensor 126. There is a problem that arises. In addition, the throttle device has a problem that the magnet 128 of the magnetic sensor 126 is attached to the enlarged diameter portion 127, and the assembly of the throttle device is complicated and the structure is complicated.

  In addition, the throttle device of Patent Document 2 is configured to change the output current value of the throttle sensor unit 220 by changing the contact position between the movable contact 225 and the fixed contact 230 as the throttle pipe 206 rotates. There is a problem that the structure becomes complicated. Further, the throttle device of Patent Document 2 has a problem that durability is poor because the movable contact 225 of the throttle sensor unit 220 and the fixed contact 230 are in contact with each other.

  The present invention has been made in view of the above reasons, and it is an object of the present invention to provide a connector having a relatively simple structure and higher durability.

  The connector according to the present invention includes a housing for connecting and holding a handlebar of a vehicle and a throttle grip side which is rotatable about an axis of the handlebar and is provided at one end of the handlebar, and the throttle grip provided in the housing. A sensor unit that detects a rotation angle of the throttle unit, the sensor unit being connected to a metal body that rotates about the axis of the throttle grip in conjunction with the rotation of the throttle grip, and the housing A coil portion that is fixed and is not in contact with the metal body, and changes the inductance of the coil portion by changing the overlapping region in which the metal body is projected onto the coil portion as the metal body rotates. It is characterized by that.

  In this connection tool, the housing includes a switch on the throttle grip side of the housing for controlling an operation of an instrument provided on the vehicle, and the sensor unit is provided on the throttle grip side of the housing. Preferably it is.

  In this connection tool, the housing includes a switch on the throttle grip side of the housing for controlling an operation of an instrument provided in the vehicle, and the sensor unit includes the throttle in the housing via the switch. It is preferable to be provided on the side opposite to the grip.

  In this connection tool, it is preferable that the vehicle is a motorcycle, the device is a starter for starting an engine of the motorcycle, and the switch is a starter switch for starting the starter.

  The connection tool of the present invention has a relatively simple structure and can be made more durable.

FIG. 3 is an exploded perspective view of a main part in the connection tool of the first embodiment. It is a disassembled perspective view of a connection tool same as the above. It is a perspective view of a connection tool same as the above. It is operation | movement explanatory drawing explaining the principal part in a connection tool same as the above. It is another operation | movement explanatory drawing explaining the principal part in a connection tool same as the above. It is a disassembled perspective view of the principal part in the connector of Embodiment 2. It is a disassembled perspective view of a connection tool same as the above. It is a perspective view of a connection tool same as the above. It is operation | movement explanatory drawing explaining the principal part in a connection tool same as the above. It is another operation | movement explanatory drawing explaining the principal part in a connection tool same as the above. It is sectional drawing which shows the conventional throttle device. It is sectional drawing which shows another conventional throttle device.

(Embodiment 1)
The connection tool 10 of this embodiment is demonstrated using FIG. 1 thru | or FIG. The structure of the principal part of the connection tool 10 of this embodiment is demonstrated using FIG. 1, and the structure of the connection tool 10 whole is demonstrated using FIG. 2 and FIG. Moreover, the operation | movement of the principal part of the connection tool 10 of this embodiment is demonstrated using FIG. 4 and FIG. In addition, in the figure, the same code | symbol is attached | subjected to the same component.

  First, the overall configuration of the connection tool 10 of the present embodiment will be described. As shown in FIGS. 2 and 3, the connector 10 includes a vehicle handlebar 1 (not shown) and a throttle grip 3 side provided at one end of the handlebar 1 and rotatable about the axis of the handlebar 1. And a housing 4 for holding the connection. The connector 10 includes a sensor unit 5 that is provided in the housing 4 and detects the rotation angle of the throttle grip 3.

  For example, when the vehicle is a motorcycle, the sensor unit 5 detects the rotation angle of the throttle grip 3 around the axis of the handlebar 1. Although not shown, in a motorcycle, a controller that is electrically connected to the sensor unit 5 controls a motor that drives the throttle valve of the engine based on the detection result from the sensor unit 5. In the motorcycle, an output corresponding to the rotation angle of the throttle grip 3 operated by the driver can be obtained from the engine.

  The connector 10 of this embodiment is a wire that mechanically transmits the rotation angle of the throttle grip 3 to the engine side by the sensor unit 5 electrically detecting the rotation angle of the throttle grip 3 and transmitting it to the engine side. A cable is unnecessary. In the connection tool 10 of this embodiment, the change of the operation feeling of the throttle grip 3 accompanying the deterioration of a wire cable, the trouble of a wire cable maintenance, etc. become unnecessary.

  As shown in FIG. 1, the sensor unit 5 in the connector 10 of the present embodiment is fixed to the housing 4 and the metal body 5 a that rotates about the axis of the throttle grip 3 in conjunction with the rotation of the throttle grip 3. And a metal body 5a and a non-contact coil portion 5c. The sensor unit 5 changes the inductance of the coil unit 5c by changing the overlapping region in which the metal unit 5a is projected onto the coil unit 5c as the metal unit 5a rotates.

  The connection tool 10 of the present embodiment has a relatively simple structure and can have higher durability.

  More specifically, the connector 10 of this embodiment includes a cylindrical handle bar 1 and a cylindrical throttle pipe 2 that has an inner diameter larger than the outer diameter of the handle bar 1 and is rotatably inserted into the handle bar 1. Are held by the housing 4. A throttle grip 3 held by the driver is fixed to the throttle pipe 2 with an adhesive or the like. The housing 4 is configured by combining the first housing part 4a and the second housing part 4b that form the housing 4 so that the sensor part 5 and the like are housed in the housing 4 for easy assembly. doing.

  In the connector 10, the throttle pipe 2 is externally inserted into the handle bar 1 inserted through the opening 5 aa of the sensor unit 5. The connector 10 includes a protruding portion 2aa protruding along the axial direction of the throttle pipe 2 (left and right direction in FIG. 2), and a recessed groove portion 51ca provided in a shaft portion 51c of the rotor block 51 described later of the sensor unit 5. Are mated. In this state, the connection tool 10 fits the through hole 1aa of the handle bar 1 to the protrusion 4e of the second housing part 4b, and the sensor part 5 is connected to the partition wall part 4f and the outer wall part 4g of the second housing part 4b. Store between. The connection tool 10 is routed so as to lead out the harness 59 electrically connected to the sensor unit 5 to the outside of the housing 4. Similarly, the connection tool 10 is routed so that a harness (not shown) electrically connected to the switch 6 and the like is led out of the housing 4, and then the first housing portion 4 a and the second housing portion 4b is fitted. The connection tool 10 is configured to insert the fixing screw 4h into the screw insertion hole 4da provided in the housing boss portion 4d of the second housing portion 4b, and fix the second housing portion 4b and the first housing portion 4a side by screwing. doing. As a result, the connector 10 can hold the handle bar 1 and the throttle grip 3 provided at one end of the handle bar 1 and rotatable about the axis of the handle bar 1 with the housing 4.

  The connection tool 10 of this embodiment includes a switch 6 for controlling the operation of the equipment provided on the vehicle on the throttle grip 3 side of the housing 4 (see FIG. 3). The sensor unit 5 of the connector 10 is provided on the throttle grip 3 side of the housing 4 (see FIG. 2). In the connection tool 10 of this embodiment, the vehicle is a motorcycle, the instrument is a starter (not shown) that starts the engine of the motorcycle, and the switch 6 is a starter switch that starts the starter.

  The vehicle is not limited to a motorcycle, but may be a vehicle such as a buggy, a small ship, a vehicle simulation device for training or a game machine, or the like. Examples of the equipment provided in the vehicle include a kill switch for stopping an engine such as a motorcycle, a lamp switch for controlling lighting of a headlamp, and a hazard lamp switch for blinking a hazard lamp.

  The sensor unit 5 of the connector 10 houses a rotor block 51 that rotates in conjunction with the throttle pipe 2 between a case body 54 and a case cover 55. The connector 10 is configured such that the throttle pipe 2 to which the throttle grip 3 is fixed and the rotor block 51 of the sensor unit 5 are interlocked.

  As shown in FIG. 1, the sensor unit 5 includes an oil seal 57 in the case body 54 that suppresses oil from entering from the outside of the sensor unit 5 on the case body 54 side. Similarly, the case cover 55 is provided with an oil seal 57 that prevents oil from entering from the outside of the sensor unit 5 on the case cover 55 side. The oil seal 57 includes an annular main body portion 57b and a flange portion 57a that protrudes outward from the main body portion 57b. The oil seal 57 is housed in the recess 54aa of the case body 54 and the recess 55aa of the case cover 55. The oil seal 57 provided in the case cover 55 is configured such that a projection 57c provided on the flange portion 57a and a fitting portion 55ac of the case cover 55 are fitted to each other, and the throttle pipe 2 is connected to the oil seal 57 as the throttle pipe 2 rotates. The rotation about the axis of 2 is prevented from occurring. Similarly, the oil seal 57 provided in the case body 54 is configured such that the projection 57c provided on the flange portion 57a and the fitting portion 55ac of the case body 54 are fitted to each other, and the oil seal 57 is rotated along with the rotation of the throttle pipe 2. Therefore, the throttle pipe 2 is prevented from rotating around its axis. The sensor unit 5 rotatably supports the shaft portion 51c of the rotor block 51 between the case body 54 and the case cover 55 via annular sliding plates 51d and 51e. In other words, the sensor unit 5 is configured such that the rotor block 51 slides between the case body 54 and the case cover 55 by the sliding plates 51d and 51e.

  The rotor block 51 has a shaft portion 51c formed in a cylindrical shape from a metal material. The rotor block 51 includes a metal body 5a that rotates integrally with the shaft portion 51c along the outer periphery in the axial direction of the shaft portion 51c, and a holding portion 51b that holds the metal body 5a on the shaft portion 51c. ing. The metal body 5a has an annular portion 51aa held by the holding body 51b, and a fan-shaped fan-like portion 51ab which is a part of the annular shape in plan view protruding around the axis from the annular portion 51aa. .

  The sensor unit 5 has an annular bearing 54 e protruding from the center of the case body 54. The bearing portion 54 e supports the holding body 51 b of the rotor block 51. The bearing portion 54e includes an annular boss portion 54ea that holds the sliding plate 51e.

  Although the sensor unit 5 is not illustrated, an annular bearing portion projects from the center portion of the case cover 55 on the case cover 55 side as well as the case body 54. The bearing portion can support the rotor block 51. The bearing portion includes an annular boss portion that holds the sliding plate 51d. On the case cover 55 side, the rotor block 51 is in contact with the bearing portion of the case cover 55 via a sliding plate 51d that contacts the annular portion 51aa of the metal body 5a of the rotor block 51 and a coil spring 58 that contacts the sliding plate 51d. It is in contact.

  In the sensor unit 5, the throttle pipe 2 is inserted into the shaft portion 51 c of the rotor block 51 so that the rotor block 51 rotates in conjunction with the rotation of the throttle pipe 2. In the sensor unit 5, the fan-shaped portion 51 ab of the metal body 5 a is rotated around the axis of the throttle grip 3 by the rotor block 51 spline-fitted with the throttle pipe 2 in conjunction with the rotation of the throttle pipe 2.

  The sensor unit 5 includes a first insulating substrate 53 in which a first detection coil 53 ca that constitutes a part of the coil unit 5 c is formed on one surface side, and a coil unit 5 c on the surface side facing the first insulating substrate 53. And a second insulating substrate 52 on which a second detection coil (not shown) is formed. The sensor unit 5 houses the first insulating substrate 53, the rotor block 51, the second insulating substrate 52, and the like inside the case body 54, and the opening of the case body 54 is closed by the case cover 55.

  The metal body 5a is configured such that an eddy current is generated corresponding to the magnetic force from the coil portion 5c. For the metal body 5a, for example, a metal material having good conductivity such as copper or aluminum can be used as the material of the metal body 5a. The metal body 5a in the connector 10 of the present embodiment is formed using a nonmagnetic aluminum material. The metal body 5a has only to change the overlapping region where the metal body 5a is projected onto the coil portion 5c in conjunction with the rotation of the throttle grip 3, and the shape of the metal body 5a is not necessarily limited to the annular part 51aa and the fan-like part. The shape may not be 51ab.

  For example, the coil portion 5c is made of a conductor formed on a substrate such as the first insulating substrate 53 or the second insulating substrate 52, the outer shape in plan view being a fan shape having a part of a ring and the inside being spirally wound. What is provided can be used. The coil part 5c may use what formed the conductor in the spiral pattern on the board | substrate, for example using printing technology. Moreover, the coil part 5c may be provided with a magnetic body (not shown) inside so that a highly accurate inductance can be stably obtained.

  The first insulating substrate 53 has a semicircular main piece 53a slightly larger than the outer shape of the holding body 51b of the rotor block 51 and a rectangular terminal piece 53b protruding from the outer peripheral edge of the main piece 53a at the center. Forming. The first insulating substrate 53 forms a first detection coil 53ca serving as the coil portion 5c on one surface side serving as the rotor block 51 side. The first insulating substrate 53 is a first detection coil in which the outer shape seen through the other surface opposite to the one surface of the first insulating substrate 53 is a coil portion 5c having substantially the same shape as the first detection coil 53ca on the one surface side. (Not shown). Each of the first detection coils 53ca is formed in a fan shape formed of a part of an annular shape along a semi-annular main piece 53a. The first insulating substrate 53 includes a plurality of (here, two) cutout portions 53ab obtained by cutting out the outer peripheral edge of the first insulation substrate 53, and one piece having a relatively wider width than the cutout portion 53ab. Notch portions 53ac are provided at predetermined intervals. Further, the first insulating substrate 53 has four through holes 53ad arranged in parallel with the terminal piece 53b. Further, the first insulating substrate 53 has lands (not shown) electrically connected to the coil terminal portion of the first detection coil 53ca serving as the coil portion 5c on the case body 54 side of the first insulating substrate 53. Each is formed at the opening end of the through hole 53ad.

  Similar to the first insulating substrate 53, the second insulating substrate 52 protrudes from the outer peripheral edge of the main piece 52a and a semicircular main piece 52a slightly larger than the outer shape of the holding body 51b of the rotor block 51 at the center. A rectangular terminal piece 52b is integrally formed. The second insulating substrate 52 forms a second detection coil 52ca serving as the coil portion 5c on the other surface side serving as the rotor block 51 side. The second insulating substrate 52 is a second detection in which the outer shape seen through on one surface opposite to the other surface of the second insulating substrate 52 is a coil portion 5c having substantially the same shape as the second detection coil 52ca on the other surface side. A coil (not shown) is formed. Each of the second detection coils 52ca is formed in a fan shape including a part of an annular shape along the main piece 52a having a semicircular outer shape. Note that the connector 10 of the present embodiment is formed to have substantially the same dimensions as the first detection coil 53ca of the first insulating substrate 53 and the second detection coil 52ca of the second insulating substrate 52. Further, the second insulating substrate 52 is provided with one notch portion 52ab obtained by notching the outer peripheral edge of the second insulating substrate 52. The second insulating substrate 52 has four through holes 52ad arranged in parallel on the terminal piece 52b. Further, the second insulating substrate 52 has four through holes 52ae arranged in parallel to the terminal pieces 52b along with the through holes 52ad. In the second insulating substrate 52, on the case body 54 side of the second insulating substrate 52, lands (not shown) that are electrically connected to the coil terminals of the second detection coils 52ca serving as the coil portions 5c are formed in the through holes. 52ad is formed at each opening end. The second insulating substrate 52 has a land (not shown) that can be electrically connected to the first detection coil 53ca and the land connected to the second detection coil 52ca by a conductive pattern (not shown). It is formed at the open end of 52ae.

  In the sensor unit 5, each first detection coil 53 ca of the first insulating substrate 53 and each second detection coil 52 ca of the second insulating substrate 52 are electrically connected in series via a terminal block 56 or the like. The terminal block 56 includes a plurality of (here, four) terminal pins 56b and an insulator 56a that holds the terminal pins 56b at the center in the longitudinal direction of each terminal pin 56b. Each terminal pin 56 b of the terminal block 56 is inserted into the through hole 53 ad of the first insulating substrate 53 and soldered to the land of the first insulating substrate 53. Similarly, in the terminal block 56, each terminal pin 56b protruding to the opposite side through the insulator 56a is inserted into the through hole 52ad of the second insulating substrate 52 and soldered to the land of the second insulating substrate 52. In other words, the terminal block 56 electrically connects each first detection coil 53ca on the first insulating substrate 53 side and one end portion of each second detection coil 52ca on the second insulating substrate 52 side via the terminal pins 56b. Connected in series.

  The holding body 51b of the rotor block 51 is formed in a cylindrical shape by a synthetic resin material so that the annular portion 51aa of the metal body 5a can be held by the shaft portion 51c. The holding body 51b is formed by integral molding so that the fan-shaped portion 51ab of the metal body 5a protrudes outward from the outer peripheral surface side of the holding body 51b. The holding body 51b has a relatively smaller diameter than the holding body 51b, and integrally holds a shaft portion 51c made of a metal material having a cylindrical shape as a whole.

  The case body 54 is made of, for example, a synthetic resin molded product, and has a storage portion 54a formed by a part of a bottomed cylindrical shape. Moreover, the case body 54 has a bottomed rectangular tube-shaped contact accommodating portion 54b that protrudes outward from one end side of the accommodating portion 54a. Further, the case body 54 has a large-diameter portion 54c formed by a part of a bottomed cylindrical shape larger than the storage portion 54a between the storage portion 54a and the contact storage portion 54b. The case body 54 continuously and integrally forms a storage portion 54a, a contact storage portion 54b, and a large diameter portion 54c. In addition, the case body 54 has a circular opening that penetrates the opening 5aa of the sensor unit 5 into which the handle bar 1 or the like is inserted at the center of the storage portion 54a.

  In the connector 10 of the present embodiment, the fan-like portion 51ab of the metal body 5a that rotates about the axis of the throttle grip 3 and the large-diameter portion 54c are formed by the shape itself of the storage portion 54a and the large-diameter portion 54c of the sensor unit 5. And the rotation angle of the throttle grip 3 is regulated. Therefore, in the connector 10 of this embodiment, the structure of the housing 4 can be simplified.

  The case body 54 is integrally formed with a magnetic shield body 54d made of a nonmagnetic material such as an aluminum plate that matches the shape of the inner bottom surface of the case body 54, and the magnetic shield body 54d is exposed to the inside of the case body 54. Yes. Further, the case body 54 is provided with two types of ribs 54f and 54g projecting from the inner bottom surface of the case body 54 at the large diameter portion 54c. Each of the two types of ribs 54f and 54g is provided with ribs 54f1 and 54g1 that are smaller than the ribs 54f and 54g. In the case body 54, the rib 54g1 of the rib 54g having a smaller height dimension than the rib 54f is fitted into the cutout portion 53ab provided in the first insulating substrate 53. In addition, the rib 54f having a height that is larger than that of the rib 54g is fitted into a wide notch portion 53ac provided in the first insulating substrate 53. The rib 54f1 protruding from the rib 54f fits into the cutout portion 52ab of the second insulating substrate 52. In other words, in the case body 54, the sensor unit 5 is arranged such that the first insulating substrate 53 is placed on the rib 54g and the second insulating substrate 52 is placed on the rib 54f.

  In the connector 10 of this embodiment, the first insulating substrate 53 and the second insulating substrate 52 are fitted with ribs 54f and 54g provided in the housing portion 54a of the case body 54, respectively. For this reason, the connection tool 10 can prevent the first insulating substrate 53 and the second insulating substrate 52 including the coil portion 5c from rattling due to vibrations of the vehicle or external impacts. The sensor unit 5 in the connector 10 of the present embodiment includes a first detection coil 53ca of the first insulating substrate 53 and a second detection coil 52ca of the second insulating substrate 52, and a fan-shaped portion 51ab of the metal body 5a. Oppositely arranged across a rotating trajectory. In the connector 10 of the present embodiment, the first detection coil 53ca and the second detection coil, which are the coil portions 5c that are electrically connected in series, are arranged to face each other across the rotation track of the non-contact metal body 5a. Therefore, even if the metal body 5a is displaced in the thickness direction of the metal body 5a due to the vibration of the vehicle or the impact from the outside, the influence on the inductance of the coil portion 5c can be suppressed.

  The case body 54 accommodates a plurality of contacts (not shown) so as to be arranged at equal intervals on the inner bottom surface of the contact accommodating portion 54b. The contact accommodating portion 54b accommodates the terminal piece 53b of the first insulating substrate 53 and the terminal piece 52b of the second insulating substrate 52, respectively. Each contact is formed in a bowl shape by bending a metal material, and is formed at the opening end of each through hole 52ae by being inserted into each through hole 52ae provided in the terminal piece 52b of the second insulating substrate 52. Land and soldering.

  The case cover 55 has a shape corresponding to the case body 54 so as to close the opening of the case body 54. The case cover 55 includes an annular main portion 55a, a rectangular plate-like terminal cover portion 55b protruding from one end edge of the main portion 55a, and the main portion 55a and the terminal cover portion 55b outside the main portion 55a. And a large-diameter portion 55c protruding in the direction. The case cover 55 is made of, for example, a synthetic resin molded product, and has a main portion 55a, a terminal cover portion 55b, and a large-diameter portion 55c that are integrally formed. In the sensor unit 5, a case of the sensor unit 5 is configured by coupling the case body 54 and the case cover 55.

  The case cover 55 is integrally formed with a magnetic shield body (not shown) made of a nonmagnetic material such as an aluminum plate that matches the outer shape of the case cover 55. The case cover 55 exposes the magnetic shield to the case body 54 side. In addition, the case cover 55 has a circular opening that penetrates the opening 5aa of the sensor unit 5 into which the throttle bar 1 and the like are inserted at the center of the main portion 55a.

  In the sensor unit 5, a magnetic shield body 54d is formed by integral molding on a case body 54 and a case cover 55 made of a synthetic resin molded product. For this reason, the sensor unit 5 in the connector 10 of the present embodiment has a throttle grip even when a magnetic field generated around the coil unit 5c due to energization is shielded by the magnetic shield 54d and a nonmagnetic material approaches the sensor unit 5. 3 can be prevented from being erroneously detected.

  In assembling the sensor unit 5, first, the first insulating substrate 53 on which the terminal block 56 is mounted is accommodated in the case body 54. Subsequently, in the sensor unit 5, the shaft portion 51 c of the rotor block 51 is inserted into the boss portion 54 ea in the bearing portion 54 e of the case body 54 through the sliding plate 51 e. Next, after placing the rotor block 51 on the bearing portion 54e, the sensor unit 5 stores the second insulating substrate 52 in the storage portion 54a. Then, the sensor unit 5 inserts the terminal pin 56b of the terminal block 56 into the through hole 52ad in the terminal piece 52b of the second insulating substrate 52, and solders the terminal pin 56b to the land of the second insulating substrate 52. Further, the sensor unit 5 inserts the end portions of the contacts into the through holes 52ae of the terminal pieces 52b of the second insulating substrate 52, and solders the end portions of the contacts to the lands formed at the open ends of the through holes 52ae. . Finally, after the sensor unit 5 extrapolates the coil spring 58 to the holding body 51b of the rotor block 51 via the sliding plate 51d, the case body 54 is covered with the case cover 55. The sensor unit 5 can be formed by fixing the engagement protrusion 55h of the case cover 55 and the engagement groove 54h of the case body 54 by an appropriate method such as adhesion or welding. The sensor unit 5 has a harness 59 that can output an electrical signal of an inductance change in the coil unit 5c to a circuit unit to be described later from a through hole of the case body 54 (not shown).

  In the connection tool 10 of the present embodiment, the rotor block 51 is supported on the case body 54 side and is elastically biased toward the case body 54 side by a coil spring 58. Therefore, the connection tool 10 can suppress rattling of the holding body 51b due to externally applied vibration or impact. Further, in the connector 10 of the present embodiment, the coil spring 58 built in the sensor unit 5 is fixed to the case cover 55 and the rotor block 51 so as to urge the throttle grip 3 to return to its original state. You may comprise. Thereby, the connection tool 10 can also be reduced in size while simplifying the structure of the connection tool 10 whole.

  In the connector 10 of the present embodiment, as shown in FIGS. 2 and 3, the housing 4 includes a switch 6 for controlling the operation of the equipment provided on the vehicle on the throttle grip 3 side of the housing 4. The sensor unit 5 of the connector 10 is provided on the throttle grip 3 side of the housing 4. In the connection tool 10, it is possible to secure a space such as the wiring of the switch 6 inside the housing 4.

  Next, the operation | movement of the principal part in the connector 10 of this embodiment is demonstrated using FIG. 4 and FIG.

  The connector 10 of the present embodiment is configured so that the fan-shaped portion 51ab is formed by rotating the metal body 5a in the direction around the axis of the throttle grip 3 (see the arrow in FIG. 4) in conjunction with the rotation of the throttle grip 3. The overlapping region of the fan-shaped part 51ab of the metal body 5a projected on the coil part 5c and the coil part 5c changes. In the sensor part 5 of the connector 10, when an electric current is passed through the coil part 5c, the inductance of the coil part 5c is determined by the magnetic field of the eddy current generated in the metal part 5c upon receiving the magnetic field of the coil part 5c. In the sensor unit 5, the inductance of the coil unit 5 c also changes due to the change of the overlapping region in which the metal body 5 a is projected onto the coil unit 5 c. That is, as shown in FIG. 4, the sensor unit 5 of the connector 10 is configured such that when the throttle grip 3 is turned off, the superimposed region projected onto the coil unit 5 c of the metal body 5 a is the first superimposed region 5 c 1 (see FIG. 4). 4). On the other hand, as shown in FIG. 5, the sensor unit 5 of the connection tool 10 has a superimposed region projected on the coil unit 5 c of the metal body 5 a at the position where the throttle grip 3 is rotated. The second overlapping region 5c2 (see the broken line portion in FIG. 5) is larger than the region 5c1.

  The connection tool 10 includes, for example, a circuit unit electrically connected to the sensor unit 5 on the vehicle side outside the connection tool 10. Although not shown, the circuit unit includes an oscillation circuit unit that outputs an oscillation signal having a predetermined frequency to the coil unit 5c. The circuit unit includes an oscillation period measuring circuit unit that outputs a signal corresponding to the period of the oscillation signal output from the oscillation circuit unit. In addition, the circuit unit includes a signal processing circuit unit that calculates a change in the overlapping region in which the metal body 5a generated by the rotation of the metal body 5a is projected on the coil unit 5c from the period measured by the oscillation period measurement circuit unit. ing. In addition, although the circuit part electrically connected with the sensor part 5 is provided in the vehicle side outside the connection tool 10, you may accommodate in the inside of the connection tool 10. FIG.

  The oscillation circuit unit can be configured by an LC oscillation circuit such as a Hartley oscillation circuit, for example. The inductance of the coil part 5c changes according to the amount of change in the overlapping region in which the metal body 5a is projected onto the coil part 5c. The frequency of the oscillation circuit unit changes according to the inductance of the coil unit 5c. The oscillation cycle measuring circuit unit measures the cycle of the oscillation signal output from the oscillation circuit unit and outputs a signal corresponding to the measured cycle. The signal processing circuit unit calculates the amount of change in the overlapping region in which the metal body 5a of the metal body 5a is projected onto the coil unit 5c based on the output signal from the oscillation period measurement circuit unit. The vehicle can appropriately adjust the output on the engine side based on the signal from the signal processing circuit unit electrically connected to the connector 10.

  In other words, the connector 10 supplies a signal having a predetermined frequency to the coil unit 5 c from the oscillation circuit unit in the circuit unit provided outside the sensor unit 5 via the harness 59. In the sensor part 5 of the connector 10, the inductance of the coil part 5c changes according to the position of the metal body 5a displaced on the turning track of the metal body 5a. The sensor unit 5 processes the rotation of the throttle pipe 2 interlocked with the rotor block 51 based on the inductance of the coil unit 5c by processing that the frequency of the transmission signal output from the oscillation circuit unit is changed by the signal processing circuit unit or the like. The angle can be detected.

  The connection tool 10 according to the present embodiment has a relatively simple structure and can be made a more durable connection tool 10.

(Embodiment 2)
A connector 10 of the present embodiment shown in FIG. 8 has a sensor portion 5 having a structure different from that of the first embodiment in place of the sensor portion 5 of the first embodiment shown in FIG. 2 provided on the throttle grip 3 side of the housing 4. 4 is different from the first embodiment in that it is arranged at a position different from that in the first embodiment. In addition, about the component similar to Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  Similar to the sensor unit 5 of the first embodiment, the sensor unit 5 of the connection tool 10 of the present embodiment is configured so that the rotor block 51 is rotated by the rotation of the throttle pipe 2 by the rotor block 51 fitted to the throttle pipe 2. Rotate.

  In the sensor unit 5 in the connector 10 of the present embodiment, the semi-annular part 51ac of the metal body 5a in the rotor block 51 rotates around the axis of the throttle grip 3, as shown in FIG. The sensor unit 5 includes a first insulating substrate 53 on which a third detection coil 53cb forming the coil unit 5c is formed and a fourth detection coil (not shown) forming the coil unit 5c. 2 insulating substrate 52.

  The first insulating substrate 53 is integrally formed with an annular main piece 53d slightly larger than the outer shape of the holding body 51b of the rotor block 51 and a rectangular terminal piece 53b protruding from the outer peripheral edge of the main piece 53d at the center. doing. The first insulating substrate 53 forms a semi-annular third detection coil 53cb that becomes the coil portion 5c on one surface side that becomes the rotor block 51 side. Similar to the first insulating substrate 53, the second insulating substrate 52 has an annular main piece 52d slightly larger than the outer shape of the holding body 51b of the rotor block 51 at the center, and a rectangular shape protruding from the outer peripheral edge of the main piece 52d. The terminal piece 52b is integrally formed. The second insulating substrate 52 forms a second detection coil (not shown) that becomes the coil portion 5c on the other surface side that is the rotor block 51 side. In the connection tool 10 of the present embodiment, the third detection coil 53cb of the first insulating substrate 53 and the fourth detection coil of the second insulating substrate 52 are formed to have substantially the same shape and the same size.

  As shown in FIGS. 7 and 8, the housing 4 of the connector 10 according to the present embodiment includes a switch 6 for controlling the operation of the equipment provided on the vehicle on the throttle grip 3 side of the housing 4. Further, in the housing 4 in the connector 10 of the present embodiment, the sensor unit 5 is provided on the opposite side of the throttle grip 3 in the housing 4 via the switch 6.

  The connection tool 10 of the present embodiment is capable of suppressing problems that are difficult to operate when the switch 6 is operated because the throttle grip 3 side of the connection tool 10 is built up because the sensor unit 5 is built therein.

  As shown in FIG. 7, the connecting tool 10 of the present embodiment is adapted to fit a protruding portion 4 e that protrudes from the inner bottom surface of the second housing portion 4 b into the through hole 1 aa of the handlebar 1 and the throttle pipe 2. It is aligned with the cutout groove 2ac cut out around the axis. Thereby, the connection tool 10 also functions as a restricting portion in which the protrusion 4 e restricts the rotation of the handle grip 3.

  Next, operation | movement of the connection tool 10 of this embodiment is demonstrated using FIG. 9 and FIG.

  The sensor unit 5 in the connection tool 10 of the present embodiment is configured such that the third detection coil 53cb of the first insulating substrate 53 and the fourth detection coil of the second insulating substrate 52 are opposed to each other across the rotation track of the metal body 5a. Has been.

  The connector 10 of the present embodiment rotates the metal body 5a in the direction around the axis of the throttle grip 3 (see the arrow in FIG. 9) in conjunction with the rotation of the throttle grip 3, whereby the coil portion 5c The overlapping region of the projected half ring part 51ac and the coil part 5c of the metal body 5a changes. Thereby, in the sensor part 5 of the connector 10, the inductance of the coil part 5c changes. That is, as shown in FIG. 9, the sensor unit 5 of the connector 10 is configured such that when the throttle grip 3 is turned off, the superimposed region projected onto the coil unit 5 c of the metal body 5 a is the third superimposed region 5 c 3 (see FIG. 9). 9). On the other hand, as shown in FIG. 10, the sensor unit 5 of the connector 10 has a third overlapping region projected on the coil unit 5c of the metal body 5a at the position where the throttle grip 3 is rotated. The fourth overlapping region 5c4 (see the broken line portion in FIG. 10) is larger than the region 5c3. Since the inductance of the coil part 5c changes according to the position of the metal body 5a displaced on the turning track, the connecting tool 10 changes the rotation angle of the metal body 5a that rotates in conjunction with the rotation of the throttle grip 3. Can be detected.

  The connection tool 10 according to the present embodiment has a relatively simple structure and can be made a more durable connection tool 10.

DESCRIPTION OF SYMBOLS 1 Handlebar 3 Throttle grip 4 Housing 5 Sensor part 5a Metal body 5c Coil part 6 Switch 10 Connector

Claims (4)

A housing for connecting and holding a handlebar of a vehicle and a throttle grip side which is provided at one end of the handlebar and is rotatable about an axis of the handlebar, and a sensor which is provided in the housing and detects a rotation angle of the throttle grip A connector having a portion,
The sensor unit includes a metal body that rotates about the axis of the throttle grip in conjunction with rotation of the throttle grip, and a coil unit that is fixed to the housing and is not in contact with the metal body. The connection tool characterized by changing the inductance of the coil part by changing the superposition field which projects the metal object onto the coil part with rotation of a body.   The housing is provided with a switch on the throttle grip side of the housing for controlling an operation of an instrument provided on the vehicle, and the sensor portion is provided on the throttle grip side of the housing. The connecting tool according to claim 1.   The housing is provided with a switch on the throttle grip side of the housing for controlling the operation of an instrument provided on the vehicle, and the sensor unit is disposed on the opposite side of the throttle grip in the housing via the switch. The connection tool according to claim 1, wherein the connection tool is provided.   4. The vehicle according to claim 2, wherein the vehicle is a motorcycle, the instrument is a starter for starting an engine of the motorcycle, and the switch is a starter switch for starting the starter. Connection tool.

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