Robert Bosch has been granted a patent for a steering column sleeve with an innovative adjustment system. The system includes an adjustment screw and guide bearings to enable precise axial positioning. The motor driving the screw is offset from the guide bearings, enhancing stability. GlobalData’s report on Robert Bosch gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Robert Bosch, was a key innovation area identified from patents. Robert Bosch's grant share as of February 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.

Adjustable steering column sleeve with axial force take-up

Source: United States Patent and Trademark Office (USPTO). Credit: Robert Bosch GmbH

A recently granted patent (Publication Number: US11919563B2) discloses a novel sleeve design for a steering column, consisting of an outer tube and an inner tube that can move relative to each other along a reference axis. The sleeve includes an adjustment system with an adjustment screw and a nut, allowing for precise axial positioning. The adjustment screw is driven by a motor and guided by at least two bearings, one of which immobilizes the screw against translation movement. The motor is offset from the guide bearings and includes a casing directly supported by the adjustment screw, providing a unique and efficient design for steering column sleeves.

Furthermore, the patent details additional features such as a rotor in the motor driving the adjustment screw, a device for retaining the motor in a specific angular position, and the use of rolling bearings for smooth operation. The design also incorporates elements like a damper for stability, a nipple for positioning, and a threaded portion of the adjustment screw strategically placed between the guide bearings. These features ensure precise and reliable adjustment of the steering column sleeve, enhancing the overall functionality and performance of the system. Overall, the patented sleeve design offers a sophisticated and innovative solution for steering column assemblies, with a focus on precision, efficiency, and ease of adjustment.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.