# US 8,783,129 B2 · Accelerator apparatus

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- Number: US 8,783,129 B2
- Document ID: US8783129B2
- Status: Granted
- Kind: B2
- Application number: 13/211,583
- Filed: 2011-08-17
- Published: 2012-03-15
- Granted: 2014-07-22
- Earliest claimed: 2010-09-14
- Assignees: Denso Corporation
- Applicants: Takehiro Saito; Haruhiko Suzuki; Takashi Hamaoka; Yoshinori Inuzuka
- Inventors: Takehiro Saito; Haruhiko Suzuki; Takashi Hamaoka; Yoshinori Inuzuka
- Web page: https://patentgrep.com/patent/US8783129B2

## CPC

- G05G 1/30: Controlling members actuated by foot
- B60K 26/021: {with means for providing feel, e.g. by changing pedal force characteristics}
- G05G 1/445: about a central fulcrum
- Y10T 74/20534: Accelerator
- Y10T 74/20888: Pedals
- G05G: CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H59/00 - F16H63/00)
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A limiting portion of a support member, which rotatably supports an accelerator pedal, forms a gap between a contacting portion of the accelerator pedal and the limiting portion in a state where the accelerator pedal is rotated in a depressing direction. A cover member is provided to one of the support member and the accelerator pedal and covers the gap at any rotational position of the accelerator pedal within a rotatable range of the accelerator pedal.

## Claims

### Claim 1

An accelerator apparatus for a vehicle, comprising:
an accelerator pedal that is adapted to be depressed in a depressing direction by a driver of the vehicle;
a support member that is adapted to be installed to the vehicle and rotatably supports the accelerator pedal, wherein:
the support member includes a limiting portion that limits rotation of the accelerator pedal in an opposite direction, which is opposite from the depressing direction, when a contacting portion of the accelerator pedal contacts the limiting portion; and
the limiting portion forms a gap between the contacting portion and the limiting portion in a state where the accelerator pedal is rotated in the depressing direction;
an urging member that urges the accelerator pedal in the opposite direction, which is opposite from the depressing direction;
a rotational position sensor that senses a rotational position of the accelerator pedal; and
a cover member that is provided to one of the support member and the accelerator pedal and covers the gap at any rotational position of the accelerator pedal within a rotatable range of the accelerator pedal, wherein:
the accelerator pedal includes at least one groove that extends from an opposed surface of the contacting portion, which is opposed to the limiting portion, along the accelerator pedal in a direction opposite from the limiting portion; and
at least an end part of the at least one groove, which is opposite from the limiting portion, is exposed from the cover member at any rotational position of the accelerator pedal within the rotatable range of the accelerator pedal.

### Claim 2 (depends on 1)

The accelerator apparatus according to claim 1, wherein:
the cover member is provided to the support member and includes a curved inner wall surface, which generally coincides with an imaginary cylindrical surface that arcuately extends about a rotational axis of the accelerator pedal; and
the accelerator pedal has a curved outer wall surface, which is located adjacent to the contacting portion and forms a predetermined clearance between the curved inner wall surface of the cover member and the curved outer wall surface of the accelerator pedal at any rotational position of the accelerator pedal within the rotatable range of the accelerator pedal.

### Claim 3 (depends on 1)

The accelerator apparatus according to claim 1, wherein:
the cover member is provided to the accelerator pedal and includes a curved inner wall surface, which generally coincides with an imaginary cylindrical surface that arcuately extends about a rotational axis of the accelerator pedal; and
the support member has a curved outer wall surface, which is located adjacent to the limiting portion and forms a predetermined clearance between the curved inner wall surface of the cover member and the curved outer wall surface of the support member at any rotational position of the accelerator pedal within the rotatable range of the accelerator pedal.

### Claim 4 (depends on 1)

The accelerator apparatus according to claim 1, wherein the at least one groove includes a plurality of grooves.

### Claim 5 (depends on 1)

The accelerator apparatus according to claim 1, further comprising at least one cleaning member that is provided to an opposite surface of the cover member, which is opposite from the gap, wherein the at least one cleaning member is adapted to scrape off or collect a foreign object, which is attached to a manipulating portion of the driver, through which the driver manipulates the accelerator pedal.

### Claim 6 (depends on 5)

The accelerator apparatus according to claim 5, wherein the at least one cleaning member includes a plurality of cleaning members, which are arranged one after another at predetermined intervals.

### Claim 7 (depends on 5)

The accelerator apparatus according to claim 5, wherein each cleaning member is one of a brush, a carpet, a sponge and an adhesive member having an adhesive property.