# US 12,222,771 B2 · Electronic apparatus

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- Number: US 12,222,771 B2
- Document ID: US12222771B2
- Status: Granted
- Kind: B2
- Application number: 18/167,074
- Filed: 2023-02-10
- Published: 2023-09-07
- Granted: 2025-02-11
- Earliest claimed: 2022-03-07
- Assignees: Lenovo (Singapore) Pte. Ltd.
- Applicants: Lenovo (Singapore) Pte. Ltd.
- Inventors: Hiroaki Kinoshita; Kazuya Tatsuno; Shinichi Kubota; Satoshi Hosoya
- Web page: https://patentgrep.com/patent/US12222771B2

## CPC

- G06F 1/1681: {Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683)}
- F16C 11/04: Pivotal connections (hinges for doors, windows or wings E05D)
- G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position}
- G06F 1/1683: {for the transmission of signal or power between the different housings, e.g. details of wired or wireless communication, passage of cabling}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

## Abstract

An electronic apparatus includes: a first chassis and a second chassis; a hinge connecting the second chassis to the first chassis in a relatively rotatable manner; an electrical device including a display provided in the first chassis; a printed circuit board provided in the second chassis; and a flexible substrate for electrically connecting the electrical device and the printed circuit board, the first chassis including a rotating body that rotates coaxially with the hinge by a rotational movement with respect to the second chassis and has the flexible substrate passed therethrough, and the rotating body including: a first opening guiding the flexible substrate to the electrical device; a second opening guiding the flexible substrate to the printed circuit board; and a substrate opening through which the flexible substrate passes.

## Claims

### Claim 1

An electronic apparatus comprising:
a first chassis and a second chassis;
a hinge connecting the second chassis to the first chassis in a relatively rotatable manner;
an electrical device including a display provided in the first chassis;
a printed circuit board provided in the second chassis; and
a flexible substrate for electrically connecting the electrical device and the printed circuit board, wherein
the first chassis includes: a rotating body that rotates coaxially with the hinge by a rotational movement with respect to the second chassis and has the flexible substrate passed therethrough,
the rotating body includes: a first opening guiding the flexible substrate to the electrical device; a second opening guiding the flexible substrate to the printed circuit board; and a substrate opening through which the flexible substrate passes,
the substrate opening extends in a direction in which the first chassis and the second chassis are stacked in a folded form in which the first chassis and the second chassis are stacked together with one surface of each thereof opposing each other, and the rotating body has a first half body on a side facing the second chassis with the substrate opening sandwiched therebetween, and a second half body on a side opposite thereto, and
a distal end portion forming the second opening in the first half body falls within a range of a profile of a rotation shaft member in a side view of the distal end portion observed on an extension of the rotation shaft member providing a center of rotation of the hinge.

### Claim 2

An electronic apparatus comprising:
a first chassis and a second chassis;
a hinge connecting the second chassis to the first chassis in a relatively rotatable manner;
an electrical device including a display provided in the first chassis;
a printed circuit board provided in the second chassis; and
a flexible substrate for electrically connecting the electrical device and the printed circuit board, wherein
the first chassis includes: a rotating body that rotates coaxially with the hinge by a rotational movement with respect to the second chassis and has the flexible substrate passed therethrough,
the rotating body includes: a first opening guiding the flexible substrate to the electrical device; a second opening guiding the flexible substrate to the printed circuit board; and a substrate opening through which the flexible substrate passes,
the substrate opening extends in a direction in which the first chassis and the second chassis are stacked in a folded form in which the first chassis and the second chassis are stacked together with one surface of each thereof opposing each other, the rotating body has a first half body on a side facing the second chassis with the substrate opening sandwiched therebetween, and a second half body on a side opposite thereto, and
an inner side surface forming the second opening in the first half body has a distal end portion thereof closest to the center of rotation.

### Claim 3 (depends on 1)

The electronic apparatus according to claim 1, wherein
the second half body constitutes a side surface of the first chassis, and
the flexible substrate is fixed to an inner surface of a straight wall portion of the second half body, the straight wall portion forming a side surface of the first chassis.

### Claim 4 (depends on 1)

The electronic apparatus according to claim 1, wherein
the rotation shaft member is press-fitted into a part of the first chassis.