# US 9,038,498 B2 · Accelerator device

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- Number: US 9,038,498 B2
- Document ID: US9038498B2
- Status: Granted
- Kind: B2
- Application number: 14/153,458
- Filed: 2014-01-13
- Published: 2014-10-09
- Granted: 2015-05-26
- Earliest claimed: 2013-04-04
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Yoshinori Inuzuka; Masahiro Makino
- Web page: https://patentgrep.com/patent/US9038498B2

## CPC

- G05G 1/44: pivoting
- G05G 5/03: Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce (arrangements for indicating the position of the controlling member G05G1/015)
- Y10T 74/20534: Accelerator
- 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)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An accelerator pedal is supported by a support member. A biasing member biases the accelerator pedal to the full close position. A resistance application unit increases a frictional force to increase a rotational resistance applied to the accelerator pedal, as a rotation angle of the accelerator pedal increases. A slidable portion is mounted to the support member and slidable on the accelerator pedal. A first latch portion and a second latch portion define an interspace therebetween in a rotational direction. The support member includes a rotation restrictive projection fitted between the first latch portion and the second latch portion.

## Claims

### Claim 1

An accelerator device comprising:
a support member attachable to a vehicle body;
an accelerator pedal supported by the support member and rotatable from a full close position to a full open position;
a biasing member configured to bias the accelerator pedal to the full close position;
a frictional member located between a first member and a second member, the frictional member mounted to the first member and slidable on the second member, wherein the first member is one of the support member and the accelerator pedal, and the second member is an other of the support member and the accelerator pedal; and
a resistance application unit configured, as a rotation angle of the accelerator pedal increases from the full close position, to increase a frictional force between the second member and the frictional member and to increase a rotational resistance applied from the frictional member to the accelerator pedal, wherein
the frictional member includes a slidable portion, a first latch portion, and a second latch portion,
the slidable portion is slidable on the second member,
the first latch portion and the second latch portion define an interspace therebetween in a rotational direction, and
the first member includes a rotation restrictive projection fitted between the first latch portion and the second latch portion.

### Claim 2 (depends on 1)

The accelerator device according to claim 1, wherein the rotation restrictive projection is press-fitted between the first latch portion and the second latch portion.

### Claim 3 (depends on 1)

The accelerator device according to claim 1, wherein a first rotational clearance resides on an opposite side of the first latch portion from the rotation restrictive projection, the first rotational clearance configured to allow expansion of the first latch portion in the rotational direction, and a second rotational clearance resides on an opposite side of the second latch portion from the rotation restrictive projection, the second rotational clearance configured to allow expansion of the second latch portion in the rotational direction.

### Claim 4 (depends on 3)

The accelerator device according to claim 3, wherein
a first radial clearance resides on an outside of the first latch portion in a radial direction, the first radial clearance configured to allow expansion of the first latch portion outward in the radial direction, and
a second radial clearance resides on an outside of the second latch portion in the radial direction, the second radial clearance configured to allow expansion of the second latch portion outward in the radial direction.

### Claim 5 (depends on 1)

The accelerator device according to claim 1, wherein
the slidable portion is in an annular shape, and
the first member includes a latch projected portion fitted to the slidable portion and located on an inside of the slidable portion in a radial direction.

### Claim 6 (depends on 5)

The accelerator device according to claim 5, wherein the latch projected portion is press-fitted in the slidable portion.