JP6218318B2 - Throttle grip device - Google Patents

Description

  The present invention relates to a throttle grip device in which a drive source of a vehicle is controlled based on a rotation angle of the throttle grip.

  In recent motorcycles, a configuration in which the rotation angle of the throttle grip is electrically detected by a sensor and the detected value is transmitted as an electric signal to an electronic control device mounted on the two-wheeled vehicle is widely used. (For example, refer to Patent Document 1). The electronic control unit performs a predetermined calculation based on the detection signal, and the ignition timing of the engine or the opening / closing of the throttle valve is controlled based on the calculation result.

  Such a conventional throttle grip device includes a throttle grip which is attached to the front end of a handlebar of a vehicle and is rotatable, a case fixed to the base end side of the throttle grip in the handlebar, and a cover which rotates in conjunction with the throttle grip. A detection magnet and a detection means for detecting a magnetic field change of the detected magnet in a non-contact manner and detecting a rotation angle of the throttle grip based on the detection value, and the vehicle based on the detection value of the detection means The engine was configured to be controlled.

JP 2010-168025 A

  However, in the above-described conventional throttle grip device, if a relatively strong magnet is brought close to the case, there is a possibility of affecting the magnetic field of the magnet to be detected that is interlocked with the throttle grip. In this case, it may be difficult to accurately detect the rotation angle of the throttle grip. Therefore, for example, even if the case itself is made of iron and a relatively strong magnet is brought close to the case, it is conceivable to suppress the influence on the magnetic field of the magnet to be detected interlocking with the throttle grip inside the case. In this case, there is a problem that the weight of the case becomes extremely large.

  The present invention has been made in view of such circumstances, and even if the magnet is brought close to the outside of the case, the influence on the magnetic field of the magnet to be detected interlocked with the throttle grip can be suppressed and the weight can be reduced. An object of the present invention is to provide a throttle grip device that can be used.

According to the first aspect of the present invention, there is provided a throttle grip which is attached to a front end of a handlebar of a vehicle and is rotatable, a case fixed to the base end side of the throttle grip in the handlebar, and rotated in conjunction with the throttle grip. A magnet to be detected that rotates around an axis , and a detecting means that detects a change in the magnetic field of the magnet to be detected in a non-contact manner and detects a rotation angle of the throttle grip based on the detected value, A throttle grip device in which a drive source of a vehicle is controlled based on a detection value of a detection means, and is a strong grip that is disposed in the case and has an accommodating space for accommodating the detected magnet and the detection means is configured by including a housing member made of a magnetic material, said housing member, the object detecting magnet is rotatably mounted on one side, the detection on the other side A board case in which a wall portion to which a step is attached can be accommodated, and an insertion hole through which the rotation shaft can be inserted is formed, and one end of the rotation shaft inserted through the insertion hole is formed in the wall portion of the substrate case It is possible to support it.

  According to a second aspect of the present invention, in the throttle grip device according to the first aspect, the housing member is made of iron or a member containing iron.

  According to a third aspect of the present invention, in the throttle grip device according to the first or second aspect, the housing member includes two bottomed cylindrical members having different diameters, and has a small-diameter bottomed cylindrical shape. The opening end of the member is assembled in contact with the bottom of the large-diameter bottomed cylindrical member.

  According to a fourth aspect of the present invention, in the throttle grip device according to the third aspect, the accommodating member has a gap between a side surface of the small-diameter bottomed cylindrical member and a side surface of the large-diameter bottomed cylindrical member. It is formed.

According to a fifth aspect of the present invention, in the throttle grip device according to any one of the first to third aspects, the accommodating member is opposed to the magnet to be detected while fixing the detecting means in the accommodating space. And an insertion hole through which the rotation shaft of the magnet to be detected is inserted is formed.
A sixth aspect of the present invention is the throttle grip device according to any one of the first to fifth aspects, wherein the accommodating member and the substrate case can be fitted to each other when the accommodating member and the substrate case are assembled. A notch and an engaging protrusion are formed, respectively.

  According to the first aspect of the present invention, the housing member made of a ferromagnetic material having a housing space for housing the magnet to be detected and the detecting means is disposed in the case. The influence on the magnetic field of the magnet to be detected interlocked with the throttle grip can be suppressed, and the weight can be reduced as compared with a case in which the case itself is made of a ferromagnetic material.

  According to the invention of claim 2, since the material of the housing member is made of iron or a member containing iron, the housing member can be obtained with a material that is inexpensive and has good moldability, and the manufacturing cost is reduced. be able to.

  According to the invention of claim 3, the accommodating member has two bottomed cylindrical members having different diameters, and the open end portion of the small-diameter bottomed cylindrical member has a large diameter. Since it is assembled in contact with the bottom of the bottom, the thickness dimension of the side surface as the whole housing member is the sum of the dimensions of the side surfaces of the bottomed cylindrical member with a small diameter and the bottomed cylindrical member with a large diameter, Even if the thickness dimension of each bottomed cylindrical member is not so large, the magnetic shielding effect on the accommodation space can be surely exhibited.

  According to invention of Claim 4, since the clearance gap was formed between the side surface of the small-diameter bottomed cylindrical member, and the side surface of the large-diameter bottomed cylindrical member, The dimension between the housing space can be set larger by the gap, and the magnetic shielding effect on the housing space can be more reliably exhibited.

  According to the invention of claim 5, the housing member is formed to face the magnet to be detected while fixing the detecting means in the housing space, and an insertion hole is formed through which the rotation shaft of the magnet to be detected is inserted. Therefore, even when the magnet to be detected is brought close to the outside of the case while smoothly rotating the magnet to be detected, the influence on the magnetic field of the magnet to be detected interlocking with the throttle grip can be suppressed.

1 is an external view showing a throttle grip device according to an embodiment of the present invention. II-II sectional view in FIG. III-III sectional view in FIG. IV-IV sectional view in FIG. Cross-sectional view taken along line VV in FIG. Sectional view taken along line VI-VI in FIG. 3 views showing magnets to be detected in the throttle grip device VIII-VIII line sectional view in FIG. The exploded perspective view for showing the internal configuration of the throttle grip device The perspective view which shows the accommodating member in the throttle grip apparatus

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The throttle grip device according to the present embodiment is for detecting the rotation angle of the throttle grip attached to the handlebar of the two-wheeled vehicle and sending the detection signal to an electronic control device such as an ECU mounted on the two-wheeled vehicle. 6, the throttle grip 1, the case C, the magnet 2 to be detected, the angle sensor 3 as detection means, and the housing member 6 are mainly configured.

  The throttle grip 1 is attached to the tip of a handlebar H (see FIG. 1) of a motorcycle and is rotatable about the same axis with respect to the handlebar H. The inner portion 1b is formed mainly inside the outer portion 1a, and the proximal end portion 1c is formed on the proximal end side of the inner portion 1b. The outer portion 1a is made of a relatively soft resin member, and the inner portion 1b is made of a resin member harder than the outer portion 1a.

  The case C is fixed to the base end side of the throttle grip 1 in the handle bar H, and constitutes the casing of the throttle grip device according to the present embodiment, and includes the magnet 2 to be detected, the angle sensor 3 and the housing member 6. Etc. can be assembled inside. A return spring 5 for urging the throttle grip 1 toward the initial position is disposed inside the case C. When the gripping force of the hand that has rotated the throttle grip 1 is loosened, the throttle spring 1 is rotated toward the initial position. Configured to get.

  Further, in the case C, the base end of the inner portion 1b constituting the throttle grip 1 is located, and the base end side portion 1c is engaged and assembled to the inner portion 1b. A gear portion Ga is formed in a part of the base end side portion 1c, and a driven gear Gb is disposed so as to mesh with the teeth of the gear portion Ga. Thus, when the throttle grip 1 is rotated to rotate the base end side portion 1c, the driven gear Gb rotates according to the rotation angle. In addition, the driven gear Gb is urged | biased by the rotation direction with the spring 9 (refer FIG. 9), and it can suppress the backlash | gap between the gear parts Ga.

  Further, as shown in FIG. 9, a fixing member 8 is assembled in the case C, and the base end side portion 1c and the driven gear Gb are rotatably attached to one surface of the fixing member 8. A rotation shaft L of the driven gear Gb extends through the fixed member 8 to the other surface side. A magnet 2 to be detected is fixed to the extended end of the rotating shaft L (the end opposite to the end to which the driven gear Gb is fixed), and the magnet 2 to be detected together with the driven gear Gb. Is configured to be able to rotate.

  The magnet for detection 2 according to the present embodiment rotates in conjunction with the throttle grip 1, and as shown in FIGS. 7 and 8, an insertion hole 2a through which the end of the rotation shaft L can be inserted is formed at the center. It consists of the disc-shaped member made. Thus, when the driven gear Gb is rotated by rotating the throttle grip 1, the magnet 2 to be detected that has generated magnetism can rotate about the rotation axis L. In addition, although the to-be-detected magnet 2 is comprised with the permanent magnet, the thing of the other form (for example, an electromagnet, a plastic magnet, etc.) which can produce magnetism may be sufficient.

  Further, an angle sensor 3 (detection means) attached to the substrate 4 is disposed at a portion facing the magnet 2 to be detected (strictly, a position facing through the wall portion 7b of the substrate case 7). ing. The angle sensor 3 detects a change in the magnetic field of the magnet 2 to be detected in a non-contact manner, and detects the rotation angle of the throttle grip 1 based on the detected value, and is a chip-like member formed on the substrate 4. Consists of. The substrate 4 according to this embodiment includes an angle sensor 3 that can increase or decrease the output voltage due to a change in the magnetic field generated from the magnet 2 to be detected, an amplifier unit for amplifying the output signal of the angle sensor 3, and the like. Is formed.

  As a result, when the throttle grip 1 rotates and the driven gear Gb and the magnet for detection 2 rotate by the corresponding rotation angle, the output signal of the angle sensor 3 increases or decreases due to the change in the magnetic field generated from the magnet for detection 2. Therefore, the rotation angle of the throttle grip 1 can be detected based on the output signal. This detection signal is sent to the ECU of the two-wheeled vehicle via the wiring h extending from the board 4 and the engine (drive source) is controlled based on the detection signal (the output based on the rotation angle of the throttle grip 1). Control).

  The substrate case 7 has a wall portion 7b formed therein, and the magnet for detection 2 is rotatably attached to one surface side of the wall portion 7b, and the angle sensor 3 is provided on the other surface side. The substrate 4 is attached. The magnetic field generated from the magnet 2 to be detected across the wall 7b of the substrate case 7 reaches the angle sensor 3, and the change in the magnetic field can be detected.

  Here, the throttle grip device according to the present embodiment is housed of a ferromagnetic material that is disposed in the case C and has a housing space for housing the substrate case 7, the magnet 2 for detection, and the angle sensor 3. A member 6 is provided. The housing member 6 is made of iron and has two bottomed cylindrical members (6a, 6b) having different diameters. The opening end of the small-diameter bottomed cylindrical member 6a is large. The bottomed cylindrical member 6b having a diameter is assembled in contact with the bottom.

  More specifically, the small-diameter bottomed cylindrical member 6a and the large-diameter bottomed cylindrical member 6b are formed from a cup-shaped member (see FIG. 9) in which one end is opened and opened and the other end is a bottom. The opening end portions of the small-diameter bottomed cylindrical member 6a face each other with the substrate case 7 having the magnet 2 to be detected and the substrate 4 sandwiched therebetween, and the large-bottomed bottomed cylindrical member 6b. By forming the housing space in contact with the bottom of the housing, the housing member 6 housing the substrate case 7, the magnet for detection 2 and the angle sensor 3 in the housing space can be obtained (see FIG. 10).

  Further, the small-diameter bottomed cylindrical member 6a is fitted to each of an insertion hole 6aa through which the rotation shaft L can be inserted and a pair of convex portions 8a (see FIGS. 4 and 5) formed in the fixing member 8. A joint hole 6ab is formed, and a notch 6ac is formed on the side surface on the opening side. On the other hand, the large-diameter bottomed cylindrical member 6b has a pair of flanges 6ba extending sideways, and each flange 6ba is formed with an insertion hole through which a mounting screw n can be inserted.

  Then, after the convex portion 8a is fitted into the fitting hole 6ab of the small-diameter bottomed cylindrical member 6a and the small-diameter bottomed cylindrical member 6a is positioned with respect to the fixing member 8, the magnet 2 to be detected ends. The rotating shaft L fixed to the section is inserted into the insertion hole 6aa, and covers the substrate case 7 to which the substrate 4 having the magnet 2 to be detected and the angle sensor 3 is attached. Is fixed to the fixing member 8 with the mounting screw n.

  When the substrate case 7 is assembled into the small-diameter bottomed cylindrical member 6a, the engagement protrusion 7a formed in the substrate case 7 is fitted into the notch 6ac formed in the small-diameter bottomed cylindrical member 6a. Can be assembled. As described above, the housing member 6 composed of the small-diameter bottomed cylindrical member 6a and the large-diameter bottomed cylindrical member 6b is assembled to the fixed member 8, and the magnet 2 to be detected and the angle inside the housing member 6 The sensor 3 is housed.

  Thus, according to the present embodiment, the housing member 6 made of a ferromagnetic material (iron in the present embodiment) having a housing space for housing the magnet 2 to be detected and the angle sensor 3 (detecting means) is the case. Since it is disposed in C, even if the magnet is brought closer to the outside of the case C, the influence on the magnetic field of the magnet 2 to be detected interlocking with the throttle grip 1 can be suppressed, and the case C itself is made of a ferromagnetic material. The weight can be reduced compared to the above. Further, the accommodating member 6 can be formed in accordance with the size and shape of the substrate 4 having the magnet 2 for detection or the angle sensor 3.

  Further, as shown in FIG. 2, the housing member 6 according to the present embodiment includes a side surface (outer peripheral surface) of the small-diameter bottomed cylindrical member 6a and a side surface (inner peripheral surface) of the large-diameter bottomed cylindrical member 6b. A gap α is formed between the two. Thereby, the dimension between the outer peripheral side surface of the storage member 6 and the storage space can be set larger by the gap α, and the magnetic shielding effect on the storage space can be more reliably exhibited. Moreover, even if it is a case where the material thickness of the small-diameter bottomed cylindrical member 6a and the large-diameter bottomed cylindrical member 6b is reduced to improve the moldability, the clearance space The magnetic shielding effect against can be more reliably exhibited.

  According to the embodiment, since the material of the housing member 6 is made of iron, the housing member can be obtained from a material that is inexpensive and has good moldability, and the manufacturing cost can be reduced. In particular, the housing member 6 according to this embodiment includes two bottomed cylindrical members (6a, 6b) having different diameters, and the opening end of the small-diameter bottomed cylindrical member 6a has a large diameter. The bottomed cylindrical member 6b is assembled in contact with the bottom of the bottomed cylindrical member 6b, so that the thickness of the side surface of the housing member 6 as a whole is small, and the side surface of the large bottomed cylindrical member 6b. Thus, the magnetic shielding effect on the housing space can be surely exhibited without increasing the thickness of each bottomed cylindrical member so much.

  Further, the housing member 6 is formed to face the magnet 2 to be detected while fixing the angle sensor 3 (detection means) in the housing space, and an insertion hole 6aa through which the rotation axis L of the magnet 2 to be detected is inserted. Since it is formed, it is possible to suppress the influence on the magnetic field of the magnet 2 to be detected interlocked with the throttle grip 1 even if the magnet is brought close to the outside of the case while the magnet 2 to be detected is smoothly rotated.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, instead of the iron containing member 6, another ferromagnetic material such as a member containing iron is used as a material. There may be. It is sufficient that the housing member 6 is made of a ferromagnetic material that is disposed in the case C and has a housing space for housing the magnet 2 to be detected and the angle sensor 3 (detecting means). The housing space may be a sealed space or a partially opened space, or may be an integrally formed member.

  Further, if the change in the magnetic field of the magnet 2 to be detected is detected in a non-contact manner and the rotation angle of the throttle grip 1 is detected based on the detected value, the angle sensor 3 can be replaced with another form of detection means. Also good. In this embodiment, it is assumed that it is attached to the handlebar of the two-wheeled vehicle, but it may be attached to another vehicle (for example, ATV or snowmobile) having the handlebar. Further, the vehicle is not limited to a vehicle having an engine as a drive source, and can be applied to a vehicle having a drive source (including a hybrid) different from an internal combustion engine, such as an electric motor.

The housing member is provided with a housing member made of a ferromagnetic material having a housing space for housing the magnet to be detected and the detecting means, and the housing member is to be detected on one surface side. It can accommodate a substrate case with a wall portion to which a magnet is rotatably attached and a detecting means is attached to the other surface side, and an insertion hole through which the rotation shaft can be inserted is formed. Any throttle grip device in which one end of the rotating shaft can be supported by the wall portion of the substrate case can be applied to a throttle grip device having a different external shape or other functions.

1 Throttle grip 2 Magnet to be detected 3 Angle sensor (detection means)
4 Substrate 5 Return spring 6 Housing member 6a Small-diameter bottomed cylindrical member 6b Large-diameter bottomed cylindrical member 7 Substrate case 8 Fixing member 9 Spring C Case H Handlebar

Claims (6)

A throttle grip that is attached to the end of the vehicle handlebar and can rotate freely.
A case fixed to the base end side of the throttle grip in the handlebar;
A magnet to be detected that rotates around a rotation axis in conjunction with the throttle grip;
Detecting means for detecting a magnetic field change of the magnet to be detected in a non-contact manner and detecting a rotation angle of the throttle grip based on the detected value;
A throttle grip device in which a drive source of a vehicle is controlled based on a detection value of the detection means,
The housing member is disposed in the case and includes a housing member made of a ferromagnetic material having a housing space for housing the magnet to be detected and the detecting means, and the housing member is disposed on one surface side. The magnet to be detected is rotatably attached, and can accommodate a substrate case formed with a wall portion to which the detection means is attached on the other surface side, and an insertion hole through which the rotation shaft can be inserted is formed. A throttle grip device characterized in that one end of a rotating shaft inserted through the insertion hole can be supported by a wall portion of the substrate case .   The throttle grip device according to claim 1, wherein the housing member is made of iron or a member containing iron.   The housing member includes two bottomed cylindrical members having different diameters, and the opening end of the small-diameter bottomed cylindrical member is assembled in contact with the bottom of the large-diameter bottomed cylindrical member. The throttle grip device according to claim 1 or 2, characterized by comprising:   The throttle grip device according to claim 3, wherein a gap is formed between the side surface of the small-diameter bottomed cylindrical member and the side surface of the large-diameter bottomed cylindrical member.   The housing member is configured to face the magnet to be detected while fixing the detection means in the housing space, and an insertion hole through which the rotation shaft of the magnet to be detected is inserted is formed. The throttle grip device according to any one of claims 1 to 3. The notch and the engagement protrusion which can be fitted when the accommodating member and the substrate case are assembled are formed on the accommodating member and the substrate case, respectively. The throttle grip device as described.

Images