accelerator device

Abstract

The invention comprises: a pedal pad (30); a shell portion (10) having a front wall (11), a back wall (12), a first side wall (20) and a second side wall (13), wherein the front wall includes an opening portion (111); an internal movable mechanism (50) having a shaft (51); and an arm (40); the first side wall having: a first bearing portion (221) receiving one end portion (511) of the shaft; and at least one first groove portion (223) arranged at a position vertically lower than a center axis (CA1) of a surface (224) of the first bearing portion opposite to the shaft, and connected to the first bearing portion; the second side wall having: a second bearing portion (131) receiving the other end portion of the shaft; and at least one second groove portion (133) arranged at a position vertically lower than a center axis (CA2) of a surface (134) of the second bearing portion opposite to the shaft, and connected to the second bearing portion.

Description

[0001] Cross-references between related applications

[0002] This application is based on and claims the benefit of priority from Japanese patent application No. 2020-210940, filed on December 21, 2020, the entire contents of which are incorporated into this specification by reference. Technical Field

[0003] The present disclosure relates to accelerator devices. Background Art

[0004] Patent Document 1 discloses an accelerator device of an organ structure type. This accelerator device is fixed to the vehicle body floor of a vehicle cabin and detects the amount of accelerator depression by the driver.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: European Patent Application Publication No. 1777095 Summary of the Invention

[0008] When washing a car or when it rains, water may penetrate into the interior of the vehicle compartment. In this case, water may penetrate the outer periphery of the shaft portion inside the accelerator device, and sometimes the operability of the accelerator device pedal may deteriorate due to water freezing, and abnormal noise may also occur.

[0009] The present disclosure can be implemented in the following forms.

[0010] (1) According to the method disclosed in the present invention, an accelerator device is provided. The accelerator device comprises: a pedal pad, which can be moved in an opening direction corresponding to the opening operation of the accelerator and a closing direction corresponding to the closing operation of the accelerator and opposite to the opening direction; a shell part, which can be installed on the vehicle body and has a front wall opposite to the pedal pad and having an opening, a back wall opposite to the front wall, a first side wall connecting the front wall and the back wall and constituting one side of the shell part, and a second side wall constituting the other side of the shell part; an internal movable mechanism, which is accommodated in the shell part and has a shaft rotatably supported by the shell part; and an arm, which passes through the opening and connects the pedal pad to the inner The cam is connected to a movable mechanism of the part; the first side wall has: a first bearing portion, which receives one end portion of the shaft; and at least one first groove portion, which, when the shell part is installed on the body, is arranged at a position lower in the vertical direction than the center axis of the surface of the first bearing portion opposite to the shaft, and is connected to the first bearing portion; the second side wall has: a second bearing portion, which receives the other end portion of the shaft; and at least one second groove portion, which, when the shell part is installed on the body, is arranged at a position lower in the vertical direction than the center axis of the surface of the second bearing portion opposite to the shaft, and is connected to the second bearing portion.

[0011] In this accelerator device, if water enters the housing through the opening, it flows into the first and second grooves. Therefore, water is less likely to remain on the shaft, first bearing, and second bearing. This prevents freezing of the shaft, first bearing, and second bearing if water enters the housing, thus preventing degradation of operating feel and unusual noises. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above-mentioned object and other objects, features and advantages of the present disclosure will become more apparent through the following detailed description with reference to the accompanying drawings.

[0013] Figure 1 is a diagram illustrating the structure of the accelerator device according to this embodiment;

[0014] Figure 2 This is a diagram illustrating the internal structure of the accelerator device;

[0015] Figure 3 This is a perspective view for explaining the components other than the elastic component of the internal movable mechanism;

[0016] Figure 4 This is a diagram illustrating the cover;

[0017] Figure 5 yes Figure 4VV cross-sectional view;

[0018] Figure 6 is a perspective view illustrating the cover;

[0019] Figure 7 A diagram illustrating the functions of the first groove portion and the second groove portion;

[0020] Figure 8 is a perspective view of the housing portion with the first side wall removed;

[0021] Figure 9 is a side view of the housing portion with the first side wall removed;

[0022] Figure 10 yes Figure 9 XX sectional view;

[0023] Figure 11 This is a diagram illustrating a second embodiment;

[0024] Figure 12 It is a figure explaining the cover of the second embodiment;

[0025] Figure 13 This is a diagram showing the housing portion other than the first side wall according to the second embodiment;

[0026] Figure 14 This is a diagram illustrating a third embodiment;

[0027] Figure 15 It is a figure explaining the cover of the third embodiment;

[0028] Figure 16 This is a diagram showing the housing portion other than the first side wall according to the third embodiment;

[0029] Figure 17 This is a diagram illustrating a fourth embodiment;

[0030] Figure 18 A diagram illustrating the shape of a shaft according to a fourth embodiment;

[0031] Figure 19 A diagram illustrating the shape of a shaft according to a fourth embodiment;

[0032] Figure 20 This is an explanation of the first shaft groove. Figure 17 XX-XX sectional view;

[0033] Figure 21 This is an explanation of the second shaft groove Figure 17 Sectional view XXI-XXI of FIG.

[0034] Figure 22A diagram illustrating a shaft according to a fifth embodiment;

[0035] Figure 23 A diagram illustrating the shape of a shaft according to a fifth embodiment;

[0036] Figure 24 A diagram illustrating the shape of a shaft according to a fifth embodiment;

[0037] Figure 25 This describes the first plane. Figure 22 XXV-XXV sectional view;

[0038] Figure 26 This describes the second plane. Figure 22 XXVI-XXVI sectional view. DETAILED DESCRIPTION

[0039] A. First embodiment:

[0040] The accelerator device 1 is mounted on a vehicle body (not shown). Figure 1 , the X-axis direction indicates the traveling direction of the vehicle, the Y-axis direction indicates the width direction of the vehicle, and the Z-axis direction indicates the vertical upward direction. Figure 2 The directions of the X-axis, Y-axis, and Z-axis in the other figures described below also indicate the same Figure 1 The same direction. The following description of the structure and configuration of the accelerator device 1 refers to the structure and configuration of the accelerator device 1 when it is installed on the vehicle body unless otherwise specified. The positive direction side of the Z axis is also referred to as the "upper side", and the negative direction side of the Z axis is also referred to as the "vertical lower side direction", "vertical lower side", or "lower side". Figure 1 and Figure 2 As shown, the accelerator device 1 includes a housing portion 10 , a pedal pad 30 , an arm 40 , and an internal movable mechanism 50 .

[0041] The housing 10 surrounds Figure 2 The housing portion 10 can be mounted on a vehicle body. Figure 1 and Figure 2 As shown, the housing 10 includes a front wall 11, a back wall 12, a first side wall 20, a second side wall 13, an upper wall 14, and a lower wall 15. The front wall 11 faces the pedal pad 30. An opening 111 is formed in the front wall 11 for allowing the arm 40 to pass through. The back wall 12 faces the front wall 11. Figure 2 As shown, the first side wall 20 connects the front wall 11 and the back wall 12. The first side wall 20 constitutes one side of the housing 10. The first side wall 20 can be separated from the other walls. Figure 1As shown, the first side wall 20 includes a partition wall 21 and a cover 22. The partition wall 21 is located above the cover 22 and protects the components within the internal storage space SP from external influences. The cover 22 is located below the partition wall 21 and protects the components within the internal storage space SP from external influences. The second side wall 13 forms the other side surface between the front wall 11 and the back wall 12. The upper wall 14 defines one end edge of the internal storage space SP. The lower wall 15 defines the other end edge of the internal storage space SP. The upper wall 14 is located above the lower wall 15.

[0042] A kick-down switch 16 is provided in the housing 10. When the driver firmly steps on the pedal pad 30, the pedal pad 30 presses the kick-down switch 16. As a result, the driver's firm stepping on the pedal pad 30 is detected. The kick-down switch 16 is housed in a kick-down switch housing chamber formed in the housing 10.

[0043] The pedal pad 30 is configured to be stepped on by the driver. The pedal pad 30 is movable in both the opening and closing directions of the accelerator. The opening direction corresponds to the opening operation of the accelerator. The closing direction corresponds to the closing operation of the accelerator and is the opposite direction of the opening direction. The pedal pad 30 includes a side guard member 301 and a fulcrum member 302. The side guard member 301 protects the gap between the housing 10 and the pedal pad 30 to prevent the driver's feet from being pinched between the pedal pad 30 and the housing 10. The side guard member 301 is provided on the side of the pedal pad 30. The fulcrum member 302 is connected to the housing 10 and supports the pedal pad 30. The pedal pad 30 is rotatable about the connection point with the fulcrum member 302. The fulcrum member 302 is provided at the lower end of the pedal pad 30. The arm 40 passes through the opening 111 and connects the pedal pad 30 to a pedal 52 (described later) of the internal movable mechanism 50.

[0044] like Figure 2 As shown, the internal movable mechanism 50 is housed in the housing 10. Figure 2 and Figure 3 As shown, the internal movable mechanism 50 includes a shaft 51 , a pedal 52 , a first rotor 53 , a second rotor 54 , a first friction force generating portion 55 , a second friction force generating portion 56 , a first receiving portion 57 , a second receiving portion 58 , and an elastic member 59 .

[0045] The shaft 51 is rotatably supported by the housing portion 10. One end of the shaft 51, namely the first end 511, is supported by the cover 22 of the first side wall 20. A first shaft hole 511a is formed in the first end 511. The first insertion portion 222 of the cover 22, described later, is inserted into the first shaft hole 511a. The other end of the shaft 51, namely the second end 512, is supported by the second side wall 13. The pedal 52 causes the accelerator device 1 to change from a fully closed state to a fully open state when the driver steps on the pedal pad 30. When the driver's foot is released from the fully open position by being stepped on, the pedal 52 is displaced toward the fully closed state due to the elastic deformation of the elastic member 59. A plurality of holes 521 are formed in the pedal 52. A protrusion 531 of the first rotor 53, described later, extends through the hole 521.

[0046] The first rotor 53 is inserted into the shaft 51 and can rotate relative to the pedal 52. Figure 3 As shown, a plurality of protrusions 531 are provided on the surface of the first rotor 53 on the negative side of the Y axis. The protrusions 531 extend through the hole 521. The protrusions 531 are configured to protrude from the hole 521. An engaging portion 533 is formed at the front end of the protruding protrusions 531, i.e., the rotor front end 532. The engaging portion 533 engages with the first friction force generating portion 55 located on the negative side of the Y axis of the pedal 52. The second rotor 54 is a component into which the shaft 51 is inserted and which is rotatable relative to the first rotor 53. A plurality of teeth 541 are provided on the surface of the second rotor 54 on the negative side of the Y axis. The teeth 541 are in contact with the positive side of the Y axis of the first rotor 53.

[0047] The first friction generating component 55 generates friction between the protrusion 531 of the first rotor 53 and the housing 10 as the first rotor 53 rotates. The shaft 51 is inserted into the first friction generating component 55 and is positioned between the protrusion 531 of the first rotor 53 and the housing 10. The first friction generating component 55 is an annular component. The second friction generating component 56 generates friction between the second rotor 54 and the housing 10 as the second rotor 54 rotates. The shaft 51 is inserted into the second friction generating component 56 and is positioned between the second rotor 54 and the housing 10. The second friction generating component 56 is an annular component. The first receiving portion 57 is capable of contacting the first friction generating component 55. The first receiving portion 57 is positioned between the first friction generating component 55 and the first side wall 20. The second receiving portion 58 is capable of contacting the second friction generating component 56. The second receiving portion 58 is positioned between the second friction generating component 56 and the second side wall 13.

[0048] The elastic member 59 applies a force in the accelerator closing direction to the pedal 52. Figure 2 As shown, one end of the elastic member 59 is connected to the extended portion of the pedal 52 .

[0049] Figure 4FIG. 2 shows a view of the cover 22 as viewed from the inner storage space SP side. Figures 4 to 6 As shown, the cover 22 includes a first bearing portion 221, a first insert portion 222, a first groove portion 223, and a first surface 224. The first bearing portion 221 receives the first end portion 511 of the shaft 51. The first bearing portion 221 is a recessed portion that extends from the positive side of the Y-axis toward the negative side. The first insert portion 222 is inserted into a first shaft hole 511a provided in the first end portion 511. By being inserted into the first shaft hole 511a, the first insert portion 222 secures the shaft 51 to the cover 22.

[0050] The first groove 223 is a portion into which water flowing into the housing 10 flows. Figure 6 As shown, the first groove portion 223 is connected to the first bearing portion 221. The first groove portion 223 has a shape that is concave downward relative to the first surface 224. Figure 5 As shown, the first groove portion 223 is provided vertically below the central axis CA1 of the first surface 224. The first surface 224 is a surface of the first bearing portion 221 that faces the shaft 51.

[0051] Figure 7 yes Figure 1 A portion of the VII-VII section is a diagram showing the housing portion 10 and the internal movable mechanism 50. In addition, a portion of the internal movable mechanism 50 is omitted. When water penetrates into the interior of the housing portion 10 from the opening portion 111, the water sometimes flows into between the first bearing portion 221 and the shaft 51. At this time, the water flows to the first groove portion 223 which is located vertically below the center axis CA1 of the first surface 224. Therefore, it is difficult for water to remain in the first bearing portion 221. Thus, when water penetrates into the interior of the housing portion 10, it is possible to suppress the freezing of the shaft 51 and the first bearing portion 221. As a result, it is possible to prevent the operational feel from deteriorating, abnormal noise, etc. As shown in FIG. Figure 7 As shown by arrow A in FIG, water flowing into first groove portion 223 flows vertically downward from first groove portion 223 and is discharged to the outside through housing hole 151 formed vertically downward from first groove portion 223 and holes other than housing hole 151 in housing portion 10. This prevents water flowing vertically downward from first groove portion 223 from stagnating inside housing portion 10.

[0052] Figure 9 1 is a diagram showing the second side wall 13 as viewed from the inner receiving space SP side. Figures 8 to 10 As shown, the second side wall 13 of the housing 10 has a second bearing 131, a second groove 133, and a second surface 134. The second bearing 131 receives the second end 512 of the shaft 51. The second bearing 131 is a recessed portion that is recessed from the negative side toward the positive side of the Y axis.

[0053] The second groove 133 is a portion into which water flowing into the housing 10 flows. Figure 8 As shown, the second groove portion 133 is connected to the second bearing portion 131. Figure 10 As shown, the second groove portion 133 is positioned vertically downward relative to the central axis CA2 of the second surface 134. In this embodiment, the central axis CA1 and the central axis CA2 coincide with each other. This also applies to other embodiments described below. The second groove portion 133 has a shape that is recessed downward relative to the second surface 134. The second surface 134 is the surface of the second bearing portion 131 that faces the shaft 51.

[0054] When water penetrates into the interior of the housing 10 from the opening 111, the water sometimes flows into between the second bearing 131 and the shaft 51. At this time, the water flows to the second groove 133 which is located vertically below the center axis CA2 of the second surface 134. Therefore, it is difficult for water to remain in the second bearing 131. Thus, when water penetrates into the interior of the housing 10, it is possible to prevent the shaft 51 and the second bearing 131 from freezing. As a result, it is possible to prevent the operational feel from deteriorating, abnormal noises, etc. Figure 7 As shown by arrow B in FIG, water flowing into second groove portion 133 flows vertically downward from second groove portion 133 and is discharged to the outside through housing hole 152 formed vertically downward from second groove portion 133 and holes other than housing hole 152 in housing portion 10. This prevents water flowing vertically downward from second groove portion 133 from stagnating inside housing portion 10.

[0055] B. Second embodiment:

[0056] like Figures 11 to 13 As shown in FIG. 1 , in the second embodiment, the shapes of the first groove portion 223B and the second groove portion 133B are different from those in the first embodiment. Since the other structures are the same as those in the first embodiment, the same reference numerals are used and detailed descriptions are omitted.

[0057] Figure 11 and Figure 7 Corresponding. Figure 11 and Figure 12 As shown, the first groove portion 223B has a first lower surface 225 as the lower surface of the first groove portion 223B. The first lower surface 225 is the surface on the vertical lower side of the first groove portion 223B. The first lower surface 225 is inclined relative to the direction perpendicular to the vertical direction, that is, the Z axis, that is, the Y axis. Specifically, as shown in FIG. Figure 11 As shown, the first lower surface 225 is configured to descend in a direction from the first end 511 toward the second end 512 of the shaft 51. In the second embodiment, as shown in FIG. Figure 11As shown by arrow C, water flowing into the first groove portion 223B easily flows in the vertically downward direction, and the water is easily discharged from the first groove portion 223B.

[0058] like Figure 11 and Figure 13 As shown, the second groove portion 133B has a second lower surface 135 as a lower surface. The second lower surface 135 is the surface on the vertical lower side of the second groove portion 133B. The second lower surface 135 is inclined relative to the direction perpendicular to the vertical direction, that is, the Z axis, that is, the Y axis. Specifically, the second lower surface 135 is configured to descend in the direction from the second end portion 512 of the shaft 51 toward the first end portion 511. In the second embodiment, as Figure 11 As shown by the arrow D, the water flowing into the second groove portion 133B easily flows in the vertically downward direction, and the water is easily discharged from the second groove portion 133B.

[0059] C. Third embodiment:

[0060] In the third embodiment, the first grooves 223 and 223B are not formed on the cover 22C of the first side wall 20, but a first passage 226 is formed, and the second grooves 133 and 133B are not formed on the second side wall 13C, but a second passage 136 is formed. The other structures are the same as those in the above embodiment, so the same reference numerals are given and detailed descriptions are omitted. Figure 14 and Figure 15 As shown, the cover 22C has a first passage 226 .

[0061] The first passage 226 discharges water from the first bearing portion 221C to the outside by connecting the first bearing portion 221C and the outside of the cover 22C. Figure 15 As shown, the first passage 226 is provided at a position vertically lower than the central axis CA3 of the first surface 224C. The first passage 226 has a first opening 226a as an opening. The first opening 226a is connected to the first bearing portion 221C. Figure 14 As shown by arrow E, water in the first bearing portion 221C flows through the first opening 226a to the first passage 226. The first passage 226 is arranged below the first opening 226a in the vertical direction.

[0062] like Figure 14 and Figure 16As shown, the second side wall 13C has a second passage 136. The second passage 136 drains water from the second bearing portion 131C to the outside by connecting the second bearing portion 131C to the outside of the housing portion 10. The second passage 136 is provided at a position vertically lower than the central axis CA4 of the second surface 134C. The second passage 136 has a second opening 136a as an opening. The second opening 136a is connected to the second bearing portion 131C. Figure 14 As shown by arrow F, water in second bearing portion 131C flows through second opening 136a to second passage 136. Second passage 136 is located vertically below second opening 136a. Water passing through first passage 226 or second passage 136 is discharged to the outside of housing portion 10.

[0063] In the third embodiment, if water enters the interior of the housing 10 through the opening 111, the water is discharged to the exterior of the housing 10 through the first passage 226 and the second passage 136. This prevents the shaft 51 and the first and second bearings 221C, 131C from freezing when water enters the interior of the housing 10, thereby preventing degradation of the operating feel and unusual noises. Furthermore, in the third embodiment, since the first and second passages 226 and 136 communicate with the exterior, any water that has flowed between the housing 10 and the shaft 51 can be reliably discharged to the exterior of the housing 10.

[0064] D. Fourth embodiment:

[0065] In the fourth embodiment, the shapes of the shaft 51D, the cover 22D, and the second side wall 13D are different from those in the above embodiment. Since the other structures are the same as those in the above embodiment, the same reference numerals are given and detailed description is omitted.

[0066] like Figure 17 、 Figure 18 and Figure 20 As shown, in the fourth embodiment, unlike the above-mentioned embodiments, the first grooves 223, 223B and the first passage 226 are not provided on the cover 22D of the first side wall 20. Figure 17 、 Figure 19 and Figure 21 As shown, the second groove portion 133, 133B or the second passage 136 is not provided on the second side wall 13D.

[0067] Figure 18 1 is a diagram illustrating the first end portion 511D of the shaft 51D. Figure 17 and Figure 18As shown, the shaft 51D has a first shaft groove 513. The first shaft groove 513 is a portion through which water flows between the cover 22D and the shaft 51D. The first shaft groove 513 is recessed in the direction of the center axis CA5 of the shaft 51. The first shaft groove 513 extends along the center axis CA5 of the shaft 51D to the outside of the first bearing portion 221D. The so-called outside of the first bearing portion 221D refers to the side of the second end portion 512D relative to the cover 22D. The first shaft groove 513 is formed in the portion of the shaft 51D located inside the first bearing portion 221D. The first shaft groove 513 is provided on the outer peripheral surface of the shaft 51D. In either the fully open or fully closed state of the accelerator, the first shaft groove 513 is provided at a position vertically lower than the center axis CA6 of the first surface 224D, which is the surface of the first bearing portion 221D facing the shaft 51D.

[0068] Figure 19 This is a diagram illustrating the second end portion 512D of the shaft 51D. Figure 17 and Figure 19 As shown, the shaft 51D has a second shaft groove 514. The second shaft groove 514 is a portion through which water flows between the second side wall 13D and the shaft 51D. The second shaft groove 514 is recessed toward the center axis CA5 of the shaft 51D. The second shaft groove 514 extends along the center axis CA5 of the shaft 51D to the outside of the second bearing 131D. The so-called outside of the second bearing 131D refers to the side of the first end 511D of the shaft 51D relative to the second side wall 13D. The second shaft groove 514 is formed in the portion of the shaft 51D located inside the second bearing 131D. The second shaft groove 514 is provided on the outer peripheral surface of the shaft 51D. In both the fully open and fully closed states of the accelerator, the second shaft groove 514 is located vertically below the center axis CA7 of the second surface 134D, which is the surface of the second bearing 131D facing the shaft 51D.

[0069] like Figure 20 As shown, by providing the first shaft groove 513, a gap 513a is generated between the first shaft groove 513 and the first bearing portion 221D. Figure 21 As shown, by providing the second shaft groove 514, a gap 514a is created between the second shaft groove 514 and the second bearing portion 131D. Thus, when water enters the interior of the housing portion 10 through the opening 111, the water flows into the gaps 513a and 514a, making it less likely for water to remain between the shaft 51D and the first bearing portion 221D, and between the shaft 51D and the second bearing portion 131D. As a result, when water enters the interior of the housing portion 10, the shaft 51D, the first bearing portion 221D, and the second bearing portion 131D can be prevented from freezing, thereby preventing a deterioration in the operating feel and unusual noises. Water that flows into the gaps 513a and 514a then flows vertically downward and is discharged to the outside through the hole formed in the housing portion 10.

[0070] E. Fifth embodiment:

[0071] In the fifth embodiment, the shape of the shaft 51E is different from that in the fourth embodiment. Since the other structures are the same as those in the fourth embodiment, the same reference numerals as those in the fourth embodiment are used and detailed descriptions are omitted.

[0072] like Figure 22 and Figure 23 As shown, the shaft 51E has a first plane 515. The first plane 515 is formed on the outer peripheral surface of the first end portion 511E of the shaft 51E. The first plane 515 is a plane parallel to the center axis CA8 of the shaft 51E. Figure 22 As shown, the first plane 515 extends to the outside of the first bearing portion 221D. In both the fully open and fully closed states of the accelerator, the first plane 515 is located vertically below the center axis CA6 of the first surface 224D, which is the surface of the first bearing portion 221D that faces the shaft 51E.

[0073] like Figure 22 and Figure 24 As shown, a second plane 516 is formed on the shaft 51E. The second plane 516 is formed on the outer peripheral surface of the second end portion 512E of the shaft 51E. Figure 22 As shown, second plane 516 is parallel to central axis CA8 of shaft 51E. Second plane 516 extends to the outside of second bearing 131D. Second plane 516 is located vertically below central axis CA7 of second surface 134D, the surface of second bearing 131D that faces shaft 51E.

[0074] like Figure 25 As shown in FIG. 5 , by forming the first plane 515, a gap 515a is generated between the shaft 51E and the first bearing portion 221D. Figure 26 As shown, the formation of second flat surface 516 creates a gap 516a between shaft 51E and second bearing 131D. Consequently, when water enters housing 10 through opening 111, the water flows into gaps 515a and 516a, making it less likely for water to remain in first bearing 221D and second bearing 131D of shaft 51E. This prevents freezing of shaft 51E, first bearing 221D, and second bearing 131D when water enters housing 10, preventing degradation of operating feel and unusual noises. Water that flows into gaps 515a and 516a then flows vertically downward and is discharged to the outside through a hole formed in housing 10.

[0075] F. Other implementation methods:

[0076] F1) In the first and second embodiments described above, one first groove and one second groove are formed. Alternatively, two first grooves and three second grooves may be formed. Furthermore, the number of first grooves and second grooves may vary. It suffices to form at least one first groove and one second groove.

[0077] F2) In the third embodiment, one first passage and one second passage are formed. Alternatively, two first passages and three second passages may be formed. Furthermore, the number of first passages and second passages may vary. It suffices to form at least one first passage and second passage.

[0078] F3) In each of the above embodiments, the central axis CA1 and the central axis CA2 coincide with each other. However, the central axis CA1 and the central axis CA2 do not need to coincide with each other.

[0079] The present disclosure is not limited to the above-mentioned embodiments, examples, and variations, and can be implemented by various structures within the scope of its main purpose. For example, the technical features in the embodiments, examples, and variations corresponding to the technical features in the various methods described in the invention content column can be appropriately replaced or combined in order to solve part or all of the above-mentioned problems, or to achieve part or all of the above-mentioned effects. In addition, as far as its technical features are concerned, as long as they are not described as necessary items in this specification, they can be appropriately deleted.

Claims

1. An accelerator device, characterized in that: have: a pedal pad movable in an opening direction corresponding to an opening operation of the accelerator and in a closing direction corresponding to a closing operation of the accelerator and opposite to the opening direction; a housing portion that is attachable to a vehicle body and includes a front wall that faces the pedal pad and has an opening, a rear wall that faces the front wall, a first side wall that connects the front wall and the rear wall and constitutes one side surface of the housing portion, and a second side wall that constitutes the other side surface of the housing portion; an internal movable mechanism housed in the housing portion and including a shaft rotatably supported by the housing portion; and an arm passing through the opening and connecting the pedal pad to the internal movable mechanism; The first side wall has: a first bearing portion receiving one end portion of the shaft; as well as at least one first groove portion, which is provided at a position vertically below a central axis of a surface of the first bearing portion that faces the shaft when the housing portion is mounted on the vehicle body, and is connected to the first bearing portion; The second side wall has: a second bearing portion receiving the other end portion of the shaft; and At least one second groove portion is provided vertically below a central axis of a surface of the second bearing portion facing the shaft when the housing portion is mounted on the vehicle body, and is connected to the second bearing portion.

2. The accelerator device according to claim 1, characterized in that The lower surface of the first groove portion is configured to descend in a direction from one end portion of the shaft toward the other end portion of the shaft. The lower surface of the second groove portion is configured to descend in a direction from the other end portion of the shaft toward the one end portion of the shaft.

3. An accelerator device, characterized in that: have: a pedal pad movable in an opening direction corresponding to an opening operation of the accelerator and in a closing direction corresponding to a closing operation of the accelerator and opposite to the opening direction; a housing portion that is attachable to a vehicle body and includes a front wall that faces the pedal pad and has an opening, a rear wall that faces the front wall, a first side wall that connects the front wall and the rear wall and constitutes one side surface of the housing portion, and a second side wall that constitutes the other side surface of the housing portion; an internal movable mechanism housed in the housing portion and including a shaft rotatably supported by the housing portion; and an arm connecting the pedal pad and the internal movable mechanism in a state of penetrating the opening; The first side wall has: a first bearing portion receiving one end portion of the shaft; and a first passage communicating with the exterior of the housing portion and being disposed vertically below a central axis of a surface of the first bearing portion that faces the shaft when the housing portion is mounted on the vehicle body, and having an opening connected to the first bearing portion that receives the shaft; The second side wall has: a second bearing portion receiving the other end portion of the shaft; and a second passage communicating with the exterior of the housing portion and being disposed vertically below a central axis of a surface of the second bearing portion that faces the shaft when the housing portion is mounted on the vehicle body, and having an opening connected to the second bearing portion that receives the shaft, i.e., a second opening; The first passage is arranged at a position vertically below the first opening. The second passage is arranged vertically below the second opening.

4. An accelerator device, characterized in that: have: a pedal pad movable in an opening direction corresponding to an opening operation of the accelerator and in a closing direction corresponding to a closing operation of the accelerator and opposite to the opening direction; a housing portion that is attachable to a vehicle body and includes a front wall that faces the pedal pad and has an opening, a rear wall that faces the front wall, a first side wall that connects the front wall and the rear wall and constitutes one side surface of the housing portion, and a second side wall that constitutes the other side surface of the housing portion; an internal movable mechanism housed in the housing portion and including a shaft rotatably supported by the housing portion; and an arm connecting the pedal pad and the internal movable mechanism in a state of penetrating the opening; The first side wall has a first bearing portion for receiving one end portion of the shaft. The second side wall has a second bearing portion for receiving the other end portion of the shaft. The shaft has: a first shaft groove provided on an outer peripheral surface of a portion of the shaft located inside the first bearing portion, recessed toward the central axis of the shaft, and extending along the central axis of the shaft to the outside of the first bearing portion; and a second shaft groove, which is provided on an outer peripheral surface of a portion of the shaft located inside the second bearing portion, is recessed toward the central axis of the shaft, and extends along the central axis of the shaft to the outside of the second bearing portion; When the shell portion is installed on the vehicle body, the first shaft groove is arranged at a position vertically lower than the center axis of the surface of the first bearing portion opposite to the shaft, and when the shell portion is installed on the vehicle body, the second shaft groove is arranged at a position vertically lower than the center axis of the surface of the second bearing portion opposite to the shaft.

5. An accelerator device, characterized in that: have: a pedal pad movable in an opening direction corresponding to an opening operation of the accelerator and in a closing direction corresponding to a closing operation of the accelerator and opposite to the opening direction; a housing portion that is attachable to a vehicle body and includes a front wall that faces the pedal pad and has an opening, a rear wall that faces the front wall, a first side wall that connects the front wall and the rear wall and constitutes one side surface of the housing portion, and a second side wall that constitutes the other side surface of the housing portion; an internal movable mechanism housed in the housing portion and including a shaft rotatably supported by the housing portion; and an arm connecting the pedal pad and the internal movable mechanism in a state of penetrating the opening; The first side wall has a first bearing portion for receiving one end portion of the shaft. The second side wall has a second bearing portion for receiving the other end portion of the shaft. A first plane is formed on the outer peripheral surface of the one end portion of the shaft. The first plane is parallel to the central axis of the shaft and extends to the outside of the first bearing portion. A second plane is formed on the outer peripheral surface of the other end portion of the shaft. The second plane is parallel to the central axis of the shaft and extends to the outside of the second bearing portion. When the shell portion is installed on the vehicle body, the first plane is arranged at a position vertically lower than the center axis of the surface of the first bearing portion opposite to the axis, and when the shell portion is installed on the vehicle body, the second plane is arranged at a position vertically lower than the center axis of the surface of the second bearing portion opposite to the axis.

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