# US 12,213,554 B2 · Safety helmet with an adapter and process for detachably fastening a module

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- Number: US 12,213,554 B2
- Document ID: US12213554B2
- Status: Granted
- Kind: B2
- Application number: 18/524,332
- Filed: 2023-11-30
- Published: 2024-03-28
- Granted: 2025-02-04
- Earliest claimed: 2020-04-30
- Assignees: Dräger Safety AG & Co. KGaA
- Applicants: Dräger Safety AG & Co. KGaA
- Inventors: Jasser Rahmatyan
- Web page: https://patentgrep.com/patent/US12213554B2

## CPC

- A42B 3/04: Parts, details or accessories of helmets
- A42B 3/30: Mounting radio sets or communication systems
- A42B 3/044: {Lighting devices, e.g. helmets with lamps}
- A42B 3/14: Suspension devices
- A42B 3/285: {with additional heating or cooling means}
- A42B 3/286: {with forced flow, e.g. by a fan}
- A42B: HATS; HEAD COVERINGS (headbands A41D20/00; head-scarves A41D23/00)

## Abstract

A safety helmet (100) includes a helmet shell (7), with a bearing support structure (2, 5, 9, 21), with a helmet-side coupling point and with a module adapter (1). The bearing support structure (2, 5, 9, 21) is fastened to the helmet shell (7) on an inside. A helmet-side adapter coupling point of the module adapter (1) can be connected detachably to the safety helmet-side adapter coupling point of the module adapter (1). The module adapter (1) holds a module at the safety helmet (100). A process for fastening a module detachably to a safety helmet (100).

## Claims

### Claim 1

A safety helmet comprising:
an arched helmet shell;
a bearing support structure fastened on an inside to the arched helmet shell;
a helmet-side coupling point forming a part of the bearing support structure or of the arched helmet shell and located within an area enclosed by the arched helmet shell; and
a module adapter comprising a helmet-side adapter coupling point and a module-side adapter coupling point, wherein:
the helmet-side adapter coupling point is connected or detachably connectable to the helmet-side coupling point;
the module-side adapter coupling point is configured to be detachably connected to a module;
the module adapter is configured to hold the module at or on the safety helmet with the module connected to the module-side adapter coupling point and the arched helmet shell-side adapter coupling point connected to the helmet-side coupling point;
the helmet-side adapter coupling point of the module adapter comprises a U-shaped fastening element;
the helmet-side coupling point comprises an opening and a web adjoining the opening; and
the U-shaped fastening element is configured to be passed through the opening and be moved after passing through the opening into a position in which the U-shaped fastening element encompasses the web from two sides.

### Claim 2 (depends on 1)

The safety helmet in accordance with claim 1, further comprising an additional module adapter comprising an additional adapter helmet-side adapter coupling point and an additional adapter module-side adapter coupling point, wherein the helmet-side coupling point is selectively connectable to the helmet-side adapter coupling point of the module adapter or to the additional adapter helmet-side adapter coupling point of the additional module adapter.

### Claim 3 (depends on 2)

The safety helmet in accordance with claim 2, wherein the module-side adapter coupling point of the module adapter differs from the additional adapter module-side adapter coupling point of the additional module adapter based on geometry thereof or at least one dimension thereof or based on geometry thereof and at least one dimension thereof.

### Claim 4 (depends on 1)

The safety helmet in accordance with claim 1, further comprising an additional helmet-side coupling point, wherein:
the additional helmet-side coupling point forms a part of the bearing support structure or of the arched helmet shell;
the additional helmet-side coupling point is located within the area enclosed by the arched helmet shell; and
wherein in the safety helmet is configured such that a head of a user is located between the helmet-side coupling point and the additional helmet-side coupling point.

### Claim 5 (depends on 1)

The safety helmet in accordance with claim 1, wherein:
the module adapter has a predetermined breaking point; and
the predetermined breaking point is located between the helmet-side adapter coupling point and the module-side adapter coupling point.

### Claim 6 (depends on 5)

The safety helmet in accordance with claim 5, wherein a segment of the module adapter that is located between the predetermined breaking point and the arched helmet shell-side adapter coupling point is arranged entirely within the area enclosed by the arched helmet shell.

### Claim 7 (depends on 6)

The safety helmet in accordance with claim 6, wherein:
the U-shaped fastening element has two first openings and the web has an additional opening; and
a screw is passed or is passable through both the first openings and the additional opening.

### Claim 8 (depends on 1)

The safety helmet in accordance with claim 1, wherein the module adapter is located entirely within the area enclosed by the arched helmet shell.

### Claim 9 (depends on 1)

The safety helmet in accordance with claim 1, wherein the module adapter extends in a plane and has a spacer at right angles or in an oblique position relative to the plane.

### Claim 10 (depends on 1)

The safety helmet in accordance with claim 1, wherein:
the detachable connection between the helmet-side adapter coupling point and the helmet-side coupling point is establishable by a linear displacement of the module adapter in a direction of the helmet-side coupling point; or
the detachable connection between the module-side adapter coupling point and a module is establishable by a linear displacement of the module in the direction of the module-side adapter coupling point; or
the detachable connection between the helmet-side adapter coupling point and the helmet-side coupling point is establishable by a linear displacement of the module adapter in a direction of the helmet-side coupling point and the detachable connection between the module-side adapter coupling point and a module is establishable by a linear displacement of the module in the direction of the module-side adapter coupling point.

### Claim 11 (depends on 1)

The safety helmet in accordance with claim 1, wherein:
the bearing support structure comprises a bearing ring and a holding ring;
the safety helmet is configured such that the bearing encompasses a head of a user of the safety helmet;
the holding ring is connected to the arched helmet shell and to the bearing ring;
the holding ring is located at least partially between the bearing ring and the arched helmet shell; and
the helmet-side coupling point forms a part of the holding ring such that the module adapter is connected or detachably connectable to the holding ring.

### Claim 12

An arrangement comprising:
a module; and
a safety helmet comprising: an arched helmet shell; a bearing support structure fastened to the arched helmet shell; a helmet-side coupling point forming a part of the bearing support structure or of the arched helmet shell and located within an area enclosed by the arched helmet shell; and a module adapter comprising a helmet-side adapter coupling point and a module-side adapter coupling point, wherein: the helmet-side adapter coupling point is detachably connected or connectable to the helmet-side coupling point; the module-side adapter coupling point is detachably connected or connected to the module; and the module adapter holds or is configured to hold the module at the safety helmet with the module detachably connected or connectable to the module-side adapter coupling point and the arched helmet shell-side adapter coupling point detachably connected or connectable to the helmet-side coupling point, wherein the module is detachably connected to connectable to the module adapter of the safety helmet, wherein the helmet-side adapter coupling point of the module adapter comprises a U-shaped fastening element; the helmet-side coupling point comprises an opening and a web adjoining the opening; and the U-shaped fastening element is configured to be passed through the opening and be moved after passing through the opening into a position in which the U-shaped fastening element encompasses the web from two sides.

### Claim 13 (depends on 12)

The arrangement in accordance with claim 12, wherein the module comprises at least one of:
an output unit for outputting acoustic messages to a user of the safety helmet;
an input unit for receiving acoustic messages from a user of the safety helmet;
a communication module for receiving and/or transmitting radio waves;
an alarm unit for outputting an alarm perceptible acoustically and/or in a tactile manner and/or visually;
a vital parameter sensor for measuring vital parameter of a user of the safety helmet;
a geoposition sensor for measuring a geoposition of the module;
a blower configured to generate an air stream in a space between the arched helmet shell and the head of the user of the safety helmet;
a heater configured to heat the space between the arched helmet shell and the head of the user of the safety helmet;
a light source;
a power supply unit; and
a data storage device.

### Claim 14

A process for inserting a module into a safety helmet, the process comprising the steps of:
providing a safety helmet comprising: an arched helmet shell; a bearing support structure; a module adapter; and a helmet-side coupling point, wherein the bearing support structure is fastened to the arched helmet shell on an inside thereof, the helmet-side coupling point forms a part of the bearing support structure or of the arched helmet shell and is located within an area enclosed by the arched helmet shell, and the module adapter comprises a helmet-side adapter coupling point and a module-side adapter coupling point;
providing a module;
detachably connecting the helmet-side adapter coupling point to the helmet-side coupling point with a movement of the module adapter towards the helmet-side coupling point, until the detachable connection between the module adapter and the safety helmet is established; and
detachably connecting the module to the module-side adapter coupling point with a movement of the module-side adapter coupling point until the module engages with the module-side adapter coupling point, wherein:
the helmet-side coupling point comprises: an opening; and a web adjoining the opening;
the helmet-side adapter coupling point of the module adapter comprises a U-shaped fastening element; and
the step of detachably connecting the helmet-side adapter coupling point to the helmet-side coupling point comprises the following steps:
passing the U-shaped fastening element through the opening of the helmet-side coupling point; and
moving the U-shaped fastening element so as to pass through the opening into a position in which the U-shaped fastening element encompasses the web of the helmet-side coupling point from two sides.

### Claim 15 (depends on 14)

The process in accordance with claim 14, wherein the U-shaped fastening element, which encompasses the web from two sides, is detachably fastened to the web.

### Claim 16 (depends on 14)

The process in accordance with claim 14, further comprising providing a computer program which is executable on a computer, wherein the execution of the computer program on the computer causes the computer to actuate a 3D printer such that the actuated 3D printer produces the at least one of the bearing support structure, the helmet-side coupling point and the module adapter.

### Claim 17 (depends on 14)

The process according to claim 14, further comprising providing a 3D printer, which is configured to produce at least one of the bearing support structure, the helmet-side coupling point and the module adapter.

### Claim 18

A safety helmet process comprising:
providing a safety helmet comprising: an arched helmet shell; a bearing support structure fastened to the arched helmet shell; a helmet-side coupling point connected to the bearing support structure or to the arched helmet shell and located within an area enclosed by the arched helmet shell; and a module adapter comprising a helmet-side adapter coupling point and a module-side adapter coupling point, wherein: the helmet-side adapter coupling point is connected or detachably connectable to the helmet-side coupling point; the module-side adapter coupling point is configured to be detachably connected to a module; the module adapter is configured to hold the module at the safety helmet with the module connected to the module-side adapter coupling point and the arched helmet shell-side adapter coupling point connected to the helmet-side coupling point; the helmet-side adapter coupling point of the module adapter comprises a U-shaped fastening element; the helmet-side coupling point comprises an opening and a web adjoining the opening; and the U-shaped fastening element is configured to be passed through the opening and be moved after passing through the opening into a position in which the U-shaped fastening element encompasses the web from two sides;
providing a 3D printer to produce at least one of the bearings support structure, the helmet-side coupling point and the module adapter; and
producing at least one of the bearing support structure, the helmet-side coupling point and the module adapter with the 3D printer.
