# US 10,864,798 B2 · Link mechanism

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- Number: US 10,864,798 B2
- Document ID: US10864798B2
- Status: Granted
- Kind: B2
- Application number: 16/312,312
- Filed: 2017-06-01
- Published: 2019-08-01
- Granted: 2020-12-15
- Earliest claimed: 2016-06-29
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Toshikazu Matsuda
- Web page: https://patentgrep.com/patent/US10864798B2

## CPC

- B60H 1/00857: {characterised by the means connecting the initiating means, e.g. control lever, to the damper door}
- E05F 15/616: operated by push-pull mechanisms
- E05Y 2900/531: Doors
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF

## Abstract

A link mechanism includes a first link member, a second link member, a third link member, and a link cover. The first link member is connected to a motor and rotated by the motor. The second link member is connected to an open/close door which opens and closes a blowout opening through which air is blown to adjust the temperature inside the passenger compartment. The third link member has a rotation shaft supported by a fixing member, and connects the first link member and the second link member with each other. The link cover is arranged to cover the periphery of the first link member. The link cover has a protrusion protruding toward the third link member.

## Claims

### Claim 1

A link mechanism comprising:
a first link member that is to be connected to a motor, the first link member being rotated by the motor;
a second link member that is to be connected to an open/close door to open and close an air outlet for blowing out air to adjust a temperature inside a passenger compartment;
a third link member having a rotation shaft that is to be supported by a fixing member, the third link member connecting the first link member and the second link member with each other; and
a link cover disposed to cover a periphery of the first link member, wherein the link cover has a protrusion protruding toward the third link member,
a side wall of the protrusion in a rotational direction of the first link member has a tapered shape, and
the protrusion overlaps with the third link member in a thickness direction of the third link member.

### Claim 2 (depends on 1)

The link mechanism according to claim 1, wherein
the open/close door is held at a position where the open/close door is opened with a predetermined opening degree from a fully closed position, and
the protrusion is defined in a portion of the link cover facing the third link member when the open/close door is held with the predetermined opening degree.

### Claim 3 (depends on 1)

The link mechanism according to claim 1, wherein
an opposing surface of the protrusion that faces the third link member is parallel to an opposing surface of the third link member that faces the first link member.

### Claim 4 (depends on 1)

The link mechanism according to claim 1, wherein
the protrusion extends in the rotational direction of the first link member.

### Claim 5 (depends on 4)

The link mechanism according to claim 4, wherein
the protrusion has an opposing surface facing the third link member, and both side walls of the protrusion in the rotational direction are formed in the tapered shape.

### Claim 6 (depends on 1)

The link mechanism according to claim 1, wherein
both side walls of the protrusion in the rotational direction of the first link member are formed in the tapered shape.