BR102014031364A2 - throttle device installation method - Google Patents

Abstract

throttle device installation method. The present invention relates to a method of installing an accelerator device (10a) which includes the steps for securing an accelerator sensor (36) to an inner surface of a first housing (50), engaging a pair of recesses ( 28, 30) of an accelerator tube (12) respectively on a pair of teeth (42, 44) of a rotor (34) while an end face of the accelerator tube (12) slides against an external surface of the accelerator sensor ( 36) insert a handlebar (200) into the rotor (34) and the throttle tube (12) after the step to engage the recesses (28, 30) and secure a second housing (52) to the first housing (50).

Description

Report of the Invention Patent for "ACCELERATOR DEVICE INSTALLATION METHOD". BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a method of installing an accelerator device on a handlebar.

Related Art Description Motorcycles are widely known in which an accelerator device detects the rotational angle of an accelerator cable (handle), and an electronic control unit (ECU) controls the opening of an accelerator valve based on signal detected from the throttle device.

[003] Throttle devices are generally installed on handlebars. An accelerator device of the type described above includes, for example, an accelerator tube onto which an ergonomic handle is fitted, a ring-shaped rotor (interconnecting element) which is angularly movable in relation to angular motion. throttle tube, and an accelerator sensor to detect the rotational angle of the rotor. The rotor and throttle sensor are housed in a housing.

According to a known technical concept, which may be incorporated into the above mentioned accelerator device, the accelerator tube has a pair of recesses defined at one end thereof and the rotor has a pair of recessed teeth respectively. inside the recesses to reliably transmit the accelerator tube rotation to the rotor (see, for example, Japanese Patent Publication No. 2011-144715). Summary of the Invention Japanese Publication Open for Public Inspection No. 2011-144715 relates to a method of installing the throttle device on a handlebar. The throttle device may be installed on a handlebar, for example by inserting the rotor into the handlebar and thereafter by inserting the throttle tube into the handlebar and securing the liner in place while the rotor teeth are fitted into the handlebar. respective recesses of the throttle tube. However, according to such an installation process, as the rotor and throttle tube are inserted separately into the handlebar, there is much to improve in terms of reducing the number of man / hours involved in installing the throttle device over the handlebars.

The present invention was created in view of the above problems. An object of the present invention is to provide an installation method for a reduced man-hour handlebar accelerator device.

According to the present invention there is provided a method of installing an accelerator device on a handlebar, the accelerator device including an accelerator tube adapted to be disposed angularly on the handlebar, a rotor shaped an angularly movable ring in combination with the throttle tube, an accelerator sensor that detects a rotational angle of the rotor, the rotor being angularly supported by the accelerator sensor, and a casing housing the accelerator sensor itself, the liner including a first housing and a second housing which are separated from each other in a direction perpendicular to the throttle tube geometry, in which the throttle tube has a pair of recesses defined on an end face thereof. it is asymmetrical with respect to the throttle tube geometric axis, and the rotor has a pair of teeth on which the recesses are fitted. The method comprises the steps of securing the throttle sensor to an inner surface of the first housing, engaging the throttle tube recesses respectively over the rotor teeth while the end face of the throttle tube slides against an outer surface of the throttle sensor which is attached to the first housing, insert the handlebar into the rotor and throttle tube after the step to fit the recesses and secure the second housing to the first housing.

According to the above method, with the throttle tube recesses being fitted over the respective rotor teeth, the handlebars are inserted into the rotor and the throttle tube. Therefore, the handlebars are simultaneously inserted into the rotor and the throttle tube. In addition, since the throttle tube recesses are fitted over the respective rotor teeth while the end face of the throttle tube slides against the outer surface of the throttle sensor, the step for fitting the recesses can be easily performed. As a result, the number of man-hours required to install the accelerator device on the handlebar may be reduced.

In the above method, the step for securing the second housing may also comprise the step for, after the step for inserting the handlebars, securing the second housing to the first housing, such that a pin disposed over the second housing is inserted into the second housing. a fixing hole defined in the handlebar.

In accordance with the details of the above method, as the second casing pin is inserted into the handlebar mounting hole, the casing can be easily positioned and secured to the handlebar.

The above method may also comprise the step for, between the step to fit the recesses and the step to insert the handlebars, temporarily joining the second housing to the first housing with a screw. In this case, the step for securing the second housing may also comprise the step for tightening the screw to thereby secure the second housing to the first housing.

According to the details of the above method, as the step for inserting the handlebar is performed while the second housing is temporarily joined to the first housing by the bolt, the accelerator tube is prevented from dislodging from the rotor during the stage. to insert the handlebar. Further, in the step for securing the second housing, the second housing can easily be secured to the first housing by tightening the screw, which had been loosely tightened during the step to temporarily join the second housing. As a result, the number of man-hours required to install the throttle device on the handlebars can be further reduced.

In the above method, the step for securing the throttle sensor may also comprise the step for securing the throttle sensor to the inner surface of the first housing so that the rotor teeth are positioned on a straight line extending through of the rotor geometry along the direction in which the first housing and the second housing are separated from each other.

According to the details of the above method, the rotor teeth are positioned on a straight line extending across the rotor geometry along the direction in which the first housing and the second housing are separated from each other. Therefore, during the step to fit the recesses, the throttle tube recesses can be easily fitted onto the respective rotor teeth.

In the above method, the step for securing the throttle sensor may also comprise the step for securing the throttle sensor to the inner surface of the first housing, so that the rotor teeth are not positioned over a straight line extending. through the rotor geometry along the direction in which the first housing and the second housing are separated from each other.

According to the details of the above method, since the rotor teeth are not positioned in the straight line extending through the rotor geometry along the direction in which the first housing and the second housing are separated from each other. second, when the throttle tube recesses are fitted over the respective rotor teeth, the throttle tube is properly prevented from dislodging the rotor.

In the above method, the step for fitting the recesses may also comprise the steps for rotating the rotor relative to the throttle sensor and positioning the teeth in a straight line and subsequently fitting the recesses respectively over the teeth.

According to the details of the above method, in the step to fit the recesses, the rotor teeth are initially positioned in a straight line so that the throttle tube recesses can be easily fitted over the rotor teeth. In addition, after the step to fit the recesses, as the rotor teeth are not positioned straight, the throttle tube is prevented from dislodging the rotor.

In accordance with the present invention, the handlebars are inserted into the rotor and the throttle tube after the throttle tube recesses have been fitted over the rotor teeth, and while the end face of the throttle tube slides against the rotor. external surface of the throttle sensor. Consequently, the number of men / hours required to install the throttle device on the handlebar may be reduced.

These and other objects, features and advantages of the present invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, in which preferred embodiments of the present invention are shown by way of illustration.

Brief Description of the Drawings Figure 1 is a perspective view of an accelerator device to which a method of installing the accelerator device according to a first embodiment of the present invention is applied;

Figure 2 is an exploded perspective view of the accelerator device shown in Figure 1;

Figure 3A is a cross-sectional view taken along line IIIA-IIIA of Figure 1;

Figure 3B is a cross-sectional view taken along line IIIB-IIIB of Figure 1, showing an accelerator tube whose angular movement is limited;

Figure 4 is a cross-sectional view illustrating a fastening step according to the first embodiment;

[0026] Figure 5 is a perspective view illustrating a locking step according to the first embodiment;

Figure 6A is a cross-sectional view showing the manner in which the throttle tube slides against an outer surface of a sensor housing;

[0028] Figure 6B is a cross-sectional view showing the positions of the parts when the locking step is completed;

Figure 7 is a perspective view illustrating a temporary joining step according to the first embodiment;

Figure 8 is a perspective view illustrating an insertion step according to the first embodiment;

Figure 9 is a cross-sectional view illustrating the fixing step according to the first embodiment;

Figure 10 is a perspective view illustrating an assembly step according to the first embodiment;

Figure 11 is a perspective view of an accelerator device to which a method of installing the accelerator device according to a second embodiment of the present invention is applied;

Figure 12 is an exploded perspective view of the accelerator device shown in Figure 11;

Figure 13A is a cross-sectional view taken along line XIIIA-IIA of Figure 11;

Figure 13B is a cross-sectional view taken along line XIIIB-XI11B of Figure 11 showing an accelerator tube whose angular movement is limited;

Figure 14 is a cross-sectional view illustrating a clamping step according to the second embodiment;

Figure 15 is a perspective view illustrating a locking step according to the second embodiment;

Figure 16A is a cross-sectional view showing a first state of the locking step according to the second embodiment;

Figure 16B is a cross-sectional view showing a second state of the locking step according to the second embodiment;

Figure 17A is a cross-sectional view showing a third state of the locking step according to the second embodiment;

Figure 17B is a cross-sectional view showing a fourth state of the locking step according to the second embodiment; and Figure 18 is a cross-sectional view illustrating the securing step according to the second embodiment.

Description of Preferred Embodiments Methods of installing an accelerator device in accordance with the preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

First Mode A method of installing an accelerator device 10A according to a first embodiment of the present invention will be described below with reference to Figures 1 to 10. First, the structural details of the accelerator device 10A which is used in the first embodiment will be described. To make the accelerator device 10A easier to understand, the left side of the motorcycle is indicated by the arrow "L", the right side is indicated by the arrow "R", the front side is indicated by the arrow "Fr", and the rear side is indicated. indicated by the arrow "Rr" as viewed from the perspective of the rider sitting on a motorcycle.

As shown in Figure 1, the throttle device 10A is installed over a right end portion of a handlebar 200 of a motorcycle. When the rider sitting on the motorcycle spins an ergonomic cable 14 (throttle cable) provided on the handlebar 200, the accelerator device 10A senses the rotational angle of the ergonomic cable 14 and sends the detected signal to an unrepresented ECU. The ECU controls the opening of an accelerator valve (not shown) based on the detected signal.

As shown in Figures 2 and 3A, the accelerator device 10A is provided with an accelerator tube 12 which is disposed angularly movable over the right end portion of the handlebar 200, the ergonomic handle 14 which is fitted to the accelerator tube 12 and an accelerator sensor unit 16 which is disposed on an end portion (left end portion) of the accelerator tube 12.

A pair of annular elements 18, 20 for positioning and securing the ergonomic cable 14 to the accelerator tube 12 is disposed and protrudes radially outwardly from the outer circumferential surface of the accelerator tube end portion 12. The ergonomic cable 14, which is firmly positioned over the accelerator tube 12 is angularly movable together with the accelerator tube 12.

A flange 22, which projects radially outwardly from the accelerator tube 12, is disposed on one end of the end portion of the accelerator tube 12. Flange 22 has a pair of recesses 28, 30 (see Figure 3A) defined on an end face thereof asymmetrically with respect to the axis axis Ax1 of the accelerator tube 12. In other words, the recesses 28, 30 are arranged in respective diametrically opposite positions which are 180 ° offset one by one. relative to one another in the circumferential direction of the throttle tube 12. Flange 22 includes a restrictive finger 32 over an outer circumference thereof to limit the throttle tube 12 to angular motion.

The accelerator sensor unit 16 includes a ring-shaped rotor 34 which is angularly movable relative to the accelerator tube 12, an accelerator sensor 36 for detecting a rotational angle of rotor 34, a switch lock 38 disposed adjacent the throttle sensor 36 and a sheath 40.

The rotor 34 is constructed as a gear with gear teeth provided on the outer circumferential surface thereof. The rotor 34 has a pair of teeth 42, 44 on an end face thereof facing the accelerator tube 12 (see Figure 3A) which is asymmetrically arranged with respect to the axis Ax2 of the rotor 34. in other words, the teeth 42, 44 are located in respective diametrically opposite positions which are 180 ° offset from each other in the circumferential direction of the rotor 34. The teeth 42, 44 are complementary in shape to the recesses 28, 30 of throttle tube 12.

The rotor 34 is positioned coaxially with the throttle tube 12, with the teeth 42, 44 thereof being fitted respectively into the recesses 28, 30. Therefore, the rotor 34 is coaxially and angularly movable with respect to the tube of the accelerator tube. throttle 12. As described above, the recesses 28, 30 are asymmetrically positioned with respect to the thrust axis Ax1 of the throttle tube 12, and teeth 42, 44 are also asymmetrically positioned with respect to the thrust axis Ax2 of the rotor 34 Accordingly, the rotor 34 and the throttle tube 12 are prevented from shifting from their axial alignment, and the rotational forces of the throttle tube 12 can be reliably transmitted essentially equal to the teeth 42, 44 of the rotor 34.

The accelerator sensor 36 includes a sensor housing 46 in which the rotor 34 is angularly movable supported. A sensor element and return spring, which are not shown, are housed in the sensor housing 46. The sensor housing 46 includes an insertion hole 48 defined itself radially into the rotor 34, and the handlebar 200 is. inserted through the insertion hole 48. The sensor element which serves to detect a rotational angle of the rotor 34 may be of a known nature. The return spring normally propels rotor 34 to return to an initial position from the position in which rotor 34 had been rotated by ergonomic handle 14.

Casing 40 includes a first casing 50 and a second casing 52, which are separated from each other in a direction perpendicular to the throttle axis Ax1 of axle 12. Casing 40 houses throttle sensor 36 and switch closure 38 itself when the first housing 50 and the second housing 52 are coupled together. In other words, the jacket 40 is constructed from two elements which are separated from each other along the longitudinal direction of the motorcycle. One of the two elements provides the first housing 50 on the rear side of the liner 40, and the other element provides the second housing 52 on a front side of the liner 40.

The closing switch 38 and the sensor housing 46 are fixed to an inner surface of the first housing 50. More specifically, the closing switch 38 is secured to one end of the first housing 50 by screws 54, while the sensor housing 46 is secured to the other end of first housing 50 by a screw 56. A plurality of projections 60a, 60b are provided on an inner surface of the first housing 50, wherein a plurality of respective screws 58a, 58b are threaded. securing the second housing 52 to the first housing 50.

The second housing 52 includes on a inner surface thereof a lock 62 which is engaged by the restrictive finger 32 of the throttle tube 12 and a pin 64 which is inserted into a fixing hole 202 defined in the handlebar 200. thereby positioning and securing the second housing 52 on the handlebar 200. The second housing 52 also has a plurality of insertion holes 66a, 66b themselves defined in positions aligned with respective projections 60a, 60b of the first housing 50. Screws 58a 58b are inserted respectively through insertion holes 66a, 66b and are threaded into respective projections 60a, 60b.

In the accelerator device 10A thus arranged, when the motorcycle rider rotates the ergonomic handle 14, the accelerator tube 12 is moved angularly together with the ergonomic handle 14 and the rotor 34 is moved angularly in together with the throttle tube 12. At this time, the throttle sensor 36 detects the rotational angle of rotor 34 and sends a detected signal to the ECU. Based on the detected signal, the ECU controls the throttle valve opening.

As shown in Figure 3B, in the throttle device 10A, when the rotor 34 is rotated to a rotational angle at which the throttle valve is fully opened, the restrictive finger 32 of the throttle tube 12 is engaged and engaged. contact with lock 62. At this time, another angular movement of the ergonomic handle 14 is prevented. When the rider releases the ergonomic handle 14, the ergonomic handle 14 returns to its original position by tilting the return spring.

The accelerator device 10A according to the first embodiment of the present invention is constructed basically as described above. A method of installing the throttle device 10A on the handlebar 200 according to the first embodiment will be described below. At an early stage, with the method of installing the throttle device 10A according to the first embodiment, it is assumed that the lock switch 38 had been fixed to the inner surface of the first housing 50 and the rotor 34 is angled mounted sensor housing 46.

First, in the method of installing the accelerator device 10A according to the first embodiment, the accelerator sensor 36 is attached to the inner surface of the first housing 50 (clamping step). More specifically, as shown in Figure 4, sensor housing 46 is secured to the inner surface of first housing 50 by screw 56 so that teeth 42, 44 of rotor 34 are positioned over a straight line L1 extending. through the axis Ax2 of the rotor 34 along the direction in which the first housing 50 and the second housing 52 are separated from each other, that is, along the longitudinal direction of the motorcycle.

Next, as shown in figures 5 to 6B, while the end face of the throttle tube 12 slides against the outer surface of the sensor housing 46, the recesses 28, 30 of the throttle tube 12 are fitted over their respective surfaces. teeth 42, 44 of rotor 34 (fitting step). At this time, since teeth 42, 44 are positioned in a straight line L1, throttle tube 12 and first housing 50 are prevented from interfering with each other while recesses 28, 30 are fitted over respective teeth 42, 44.

Subsequently, as shown in Figure 7, the second housing 52 is temporarily joined to the first housing 50 by loosely tightening the screws 58a, 58b (temporary joining step). More specifically, while the mating face of the second housing 52 and the mating surface of the first housing 50 are held against each other, the second housing 52 is temporarily joined to the first housing 50 by screws 58a, 58b. At that time, due to the presence of the second housing 52, the throttle tube 12 is prevented from exiting or being removed from the rotor 34.

Next, as shown in Figure 8, a right end portion of the handlebar 200 is inserted into the throttle sensor 36 and the throttle tube 12 through one end thereof (insertion step). In other words, the handlebar 200 is inserted into the insertion hole 48 of the sensor housing 46 (into the rotor 34) and is also inserted into the throttle tube 12. At that time, the right end of the handlebar 200 is positioned closest to the throttle sensor unit 16 than the other end of the throttle tube 12. In addition, in the insertion step, the holding hole 202 of the handlebar 200 and the pin 64 of the second housing 52 are positioned in alignment with each other.

Next, as shown in Figure 9, the loosely tightened screws 58a, 58b are completely tightened to secure the second housing 52 to the first housing 50 (fastening step). At that time, the pin 64 of the second housing 52 is inserted into the fixing hole 202 of the handlebar 200, thereby positioning and securing the liner 40 to the handlebar 200.

As shown in Figure 10, the ergonomic handle 14 is fitted over the throttle tube 12 (mounting step). At the end of the assembly step, the present sequence of the accelerator device installation method 10A is completed.

According to the first embodiment, with the recesses 28, 30 of the throttle tube 12 being fitted over the respective teeth 42, 44 of the rotor 34, the handlebar 200 is inserted into the insertion hole 48 of the sensor housing 46 ( into the rotor 34) and also inserted into the throttle tube 12. Therefore, the handlebar 200 is simultaneously inserted into the rotor 34 and into the throttle tube 12. In addition, as the recesses 28, 30 of the throttle tube 12 are fitted onto the respective teeth 42, 44 of the rotor 34 while the end face of the throttle tube 12 slides against the outer surface of the sensor housing 46, the locking step can be easily performed. Accordingly, the number of man-hours required to install the throttle device 10A on the handlebar 200 may be reduced.

According to the first embodiment, in the clamping step, the teeth 42, 44 of the rotor 34 are positioned in the straight line L1 extending across the axis Ax2 of the rotor 34 along the direction in which the first housing 50 and the second housing 52 are separated from each other. Therefore, in the fitting step, the recesses 28, 30 of the throttle tube 12 can be easily fitted over the respective teeth 42, 44 of the rotor 34.

The temporary joining step is performed between the snapping step and the insertion step. More specifically, as the insertion step is performed while the second housing 52 is temporarily joined to the first housing 50 by screws 58a, 58b, the throttle tube 12 is prevented from dislodging from the rotor 34 during the insertion step. . Moreover, in the securing step, the second housing 52 can easily be secured to the first housing 50 by fully tightening the screws 58a, 58b, which had been loosely tightened previously in the temporary joining step. As a result, the number of man-hours required to install the throttle device 10A on the handlebar 200 can be further reduced.

According to the first embodiment, since the pin 64 of the second housing 52 is inserted into the fixing hole 202 of the handlebar 200, the cover 40 can be easily positioned and secured to the handlebar 200.

Second Mode A method of installing an accelerator device 10B according to a second embodiment of the present invention will be described below with reference to Figures 11 to 18. Parts of the second embodiment that are equal to those of the first embodiment are denoted. by the same reference characters in figures 11 to 18. In addition, parts and steps of the second embodiment that are the same as those of the first embodiment will not be described in detail below.

As shown in Figures 11 and 12, the accelerator device 10B is provided with an accelerator tube 70, an ergonomic handle 14 and an accelerator sensor unit 72. A flange 74 which is disposed over one end of the accelerator. throttle tube 70 has a pair of hollow holes 76, 78 defined in a circumferential outer wall thereof. The hollow holes 76, 78 are located in respective diametrically opposite positions which are 180 ° offset from each other in the circumferential direction of the throttle tube 70.

The throttle sensor unit 72 includes a rotor 34, an accelerator sensor 36, a lock switch 38 and a sheath 80. The sheath 80 includes a first housing 82 and a second housing 84, which are separated from one another. the other in a direction perpendicular to the throttle tube geometry 70, that is, along the longitudinal direction of the motorcycle.

Closure switch 38 and sensor housing 46 are attached to an inner surface of first housing 82. More specifically, sensor housing 46 is secured to one end of first housing 82 by a screw 56, while lock switch 38 is secured to the other end of first housing 82 by a screw 54. lock switch 38 is positioned adjacent an outer circumferential surface of flange 74 of throttle tube 70.

On the inner surface of the first housing 82 at a position closer to the other end than the sensor housing 46 are arranged: a first lock 90 which is contacted by a restrictive finger 32 of the accelerator tube 70 and a second lock 92, which is contacted by a wall defining the hollow hole 76 of the throttle tube 70. In other words, the second lock 92 is inserted into the hollow hole 76 in the throttle tube 70. A pin 64 is disposed over an inner surface of the second housing 84. Pin 64 is inserted into a mounting hole 202 defined in the handlebar 200 to position and secure the second housing 84 to the handlebar 200.

As shown in Figures 13A and 13B, in the throttle device 10B thus arranged, when the rotor 34 is rotated to a rotational angle at which the throttle valve is fully opened, the restrictive finger 32 of the throttle tube 70 is placed. in contact with the first lock 90. In addition, the wall defining the hollow hole 76 of the throttle tube 70 is engaged by contact with the second lock 92. At this time, another angular movement of the ergonomic handle 14 is prevented. .

The accelerator device 10B according to the second embodiment of the present invention is constructed basically as described above. A method of installing the accelerator device 10B on the handlebar 200 according to the second embodiment will be described below.

In the method of installing the accelerator device 10B according to the second embodiment, first, the accelerator sensor 36 is attached to the inner surface of the first housing 82 (fixing step). More specifically, as shown in Figure 14, the sensor housing 46 is secured to the inner surface of the first housing 82 by screw 56, so that teeth 42, 44 of rotor 34 are not positioned over a straight line L1 which protrudes. extends through the axle axis Ax2 of the rotor 34 along the direction in which the first housing 82 and the second housing 84 are separated from each other, that is, along the longitudinal direction of the motorcycle.

Next, as shown in figures 15 to 17B, while the end face of the throttle tube 70 slides against the outer surface of the sensor housing 46, the recesses 28, 30 of the throttle tube 70 are fitted over their respective surfaces. teeth 42, 44 of rotor 34 (fitting step). More specifically, rotor 34 is rotated while flange 74 of throttle tube 70 fits with tooth 42 of rotor 34 (see Figure 16A) and until teeth 42, 44 of rotor 34 are positioned in a straight line. L1 (see Figure 16B). Thereafter, the recesses 28, 30 of the throttle tube 70 are fitted over the respective teeth 42, 44 of the rotor 34 (see Figure 17A). Thereafter, the rotor 34 returns to its original position by tilting the return spring not shown (see Figure 17B).

With the rotor 34 teeth 42, 44 being positioned in a straight line L1, the throttle tube recesses 28, 30 can be easily fitted onto the respective rotor 34 teeth 42, 44. In addition, when the recesses 28, 30 of throttle tube 70 are fitted over respective teeth 42, 44 of rotor 34, since teeth 42, 44 are not positioned in a straight line L1, throttle tube 70 is prevented from dislodging of rotor 34.

Thereafter, the second housing 84 is temporarily joined to the first housing 82 by loosely tightening the screws 58a, 58b (temporary joining step). Then, the right end portion of the handlebar 200 is inserted into the insertion hole 48 of the sensor housing 46 (into the rotor 34) and into the throttle tube 70 through one end thereof (insertion step).

Next, as shown in Figure 18, the loosely tightened screws 58a, 58b are completely tightened to secure the second housing 84 to the first housing 82 (securing step). At that time, the pin 64 of the second housing 84 is inserted into the fixing hole 202 of the handlebar 200, thereby positioning and securing the liner 80 to the handlebar 200.

In addition, the ergonomic handle 14 is fitted over the throttle tube 70 (mounting step). When the assembly step is completed, the present sequence of the accelerator device installation method 10B is completed.

According to the second embodiment, since the teeth 42, 44 of the rotor 34 are not positioned in the straight line L1 extending through the geometric axis Ax2 of the rotor 34 along the direction in which the first housing 82 and the second housing 84 are separated from each other, when the recesses 28, 30 of the throttle tube 70 are engaged on respective teeth 42, 44 of rotor 34, the throttle tube 70 is prevented from dislodging of rotor 34.

During the fitting step, the rotor 34 is rotated while the throttle tube flange 74 engages with the rotor teeth 34 and until the rotor teeth 42, 44 are positioned in a straight line L1. Therefore, the recesses 28, 30 of the throttle tube 70 can be easily fitted over the respective teeth 42, 44 of the rotor 34.

The present invention is not limited to the methods of mounting the throttle device according to the first and second embodiments described above. Therefore, various changes and modifications may be made to the installation methods illustrated herein without departing from the scope of the present invention.

For example, in the illustrated installation methods, the temporary joining step may be dispensed with. Furthermore, in the illustrated embodiments, the assembly step is performed after the attachment step. However, the assembly step can be performed at any desired stage. More specifically, the mounting step can be performed prior to the fixing step, between the fixing step and the snapping step, between the snapping step and the temporary joining step, between the temporary joining step and the step. or between the insertion step and the clamping step.

Claims (6)

1. Method of installing an accelerator device (10A, 10B) on a handlebar (200), the accelerator device (10A, 10B) including: an accelerator tube (12, 70) adapted to be disposed angularly over the handlebars (200); a ring-shaped rotor (34) angularly movable in combination with the accelerator tube (12, 70); an accelerator sensor (36) detecting a rotational angle of the rotor (34), the rotor (34) being angled movably supported by the accelerator sensor (36); and a housing (40, 80) housing the throttle sensor (36) itself, the housing (40, 80) including a first housing (50, 82) and a second housing (52, 84), which are separated from each other in a direction perpendicular to a geometrical axis (Ax1) of the accelerator tube (12, 70); wherein the accelerator tube (12, 70) has a pair of recesses (28, 30) defined on an end face thereof asymmetrically with respect to the throttle axis (Ax1) of the accelerator tube (12, 70), and the rotor (34) has a pair of teeth (42, 44) on which the recesses (28, 30) are engaged, the method comprising the steps of: fixing the accelerator sensor (36) to a surface inner of the first shell (50, 82); engaging the recesses (28, 30) of the throttle tube (12, 70) respectively on the teeth (42, 44) of the rotor (34) while the end face of the throttle tube (12, 70) slides against an outer surface of the throttle sensor (36) attached to the first housing (50, 82); inserting the handlebars (200) into the rotor (34) and the accelerator tube (12, 70) after the step to fit the recesses (28, 30); and securing the second housing (52, 84) to the first housing (50, 82). Method according to claim 1, characterized in that the step for securing the second housing (52, 84) also comprises the step of: after the step for inserting the handlebar (200), securing the second housing (52, 84) to the first housing (50, 82), such that a pin (64) disposed over the second housing (52, 84) is inserted into a fixing hole (202) defined in the handlebar (200). Method according to claim 2, characterized in that it also comprises the step of: between the step for fitting the recesses (28, 30) and the step for inserting the handlebar (200), temporarily joining the second housing (52). 84) to the first housing (50, 82) with a screw (58a, 58b); and wherein the step for securing the second housing (52, 84) also comprises the step of: tightening the screw (58a, 58b) to thereby secure the second housing (52, 84) to the first housing (50, 82). ). Method according to any one of claims 1 to 3, characterized in that the step for securing the accelerator sensor (36) also comprises the step of: securing the accelerator sensor (36) to the inner surface of the first housing. (50, 82) such that the teeth (42, 44) of the rotor (34) are positioned on a straight line (L1) extending through the geometrical axis (Ax2) of the rotor (34) along the direction in wherein the first housing (50, 82) and the second housing (52, 84) are separated from each other. Method according to any one of claims 1 to 3, characterized in that the step for securing the accelerator sensor (36) also comprises the step of: securing the accelerator sensor (36) to the inner surface of the first housing. 50, 82, such that the teeth (42, 44) of the rotor (34) are not positioned on a straight line (L1) extending through the rotor (Ax2) axis (34) along the direction wherein the first housing (50, 82) and the second housing (52, 84) are separated from each other. The method according to claim 5, characterized in that the step to fit the recesses (28, 30) also comprises the steps of: rotating the rotor (34) relative to the accelerator sensor (36) to position the teeth (42, 44) straight (L1); and subsequently fitting the recesses (28, 30) respectively over the teeth (42, 44).