Height-adjustable dartboard device with motorized spindle adjustment and high-precision linear guide
The motorized dartboard adjustment system with linear guides and a central spindle addresses imprecision and instability in existing mounts, offering precise, quick, and safe height adjustment for all users, including those with disabilities.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- STINGL DOMINIK
- Filing Date
- 2026-04-08
- Publication Date
- 2026-06-11
AI Technical Summary
Existing dartboard mounts are either static, imprecise, slow, or mechanically unstable, lacking a simple, robust, and highly precise motorized solution for height adjustment that is accessible and safe for all users, including those with disabilities.
A motorized dartboard adjustment system with vertical linear guides, a central spindle, and a bottom-mounted electric motor, combined with a spindle nut and limit switches, achieving precise linear motion and safety features like a motor brake, with operation via buttons or a PC interface.
The system provides very high precision (≤ 0.1 mm), quick adjustment, accessibility for all users, robust mechanics, and flexible mounting options, ensuring safe and reproducible height settings.
Smart Images
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Abstract
Description
1. TECHNICAL AREA
[0001] The invention relates to a device for the motorized height-adjustable mounting of a dartboard. It enables quick, precise, and barrier-free adjustment of the playing height for standard dart players, para-dart players, and children. The device can be mounted on a wall, in a partition wall, or operated as a freestanding mobile system. 2. STATE OF THE ART
[0002] Most dartboard mounts are static. Height-adjustable systems do exist, but are usually manually operated, imprecise, slow, or mechanically unstable. Motorized systems are rare and typically suffer from low precision, complex mechanics, or insufficient safety.
[0003] Therefore, there is a need for a simple, robust, fast and highly precise solution for adjusting the height of a dartboard. 3. TASK OF INVENTION
[0004] The object of the invention is to provide a device that: - the height of a dartboard is adjusted by motor, - a positioning accuracy of at least 0.1 mm is achieved, - is accessible for people with disabilities, - works safely and requires little maintenance, - and can be mounted flexibly. 4. SOLUTION TO THE TASK
[0005] The problem is solved by a device with the following features: 4.1 Mechanical structure - Two vertical linear guides, each with at least one carriage. - A central spindle between the linear guides. - An electric motor mounted at the bottom to drive the spindle. - A support for the dartboard, which is connected to the spindle via a spindle nut. - Upper and lower limit switches to limit the adjustment range. 4.2 Drive - The motor drives the spindle directly or via a coupling. - The spindle converts the rotary motion into a linear motion. - The spindle pitch allows for a repeatability of at least 0.1 mm. - The motor brake remains active in the end positions. 4.3 Control - Operation via two NO buttons (UP / DOWN). - Additional PC control via serial USB interface. - S-curve acceleration profile. - Limit switch monitoring. - Error detection. - Automatic calibration run. 4.4 Mounting options - Wall mounting - Front wall integration - freestanding mobile system 5. ADVANTAGES OF THE INVENTION - Very high precision (≤ 0.1 mm). - Quick height adjustment. - Accessibility for para-dart players. - Child-friendly service. - Robust mechanics thanks to spindle drive and linear guides. - Safety through limit switches and motor brake. - Reproducible height positions. - Flexible mounting options. - Easy operation via buttons or PC. 6. EXAMPLES OF EXECUTION
[0006] A preferred embodiment includes: - Two linear guides (e.g. 20-30 mm profile) each with a carriage. - A trapezoidal or ball screw with a matching nut. - A bottom-mounted stepper motor with brake. - A control unit (e.g., Arduino-based). - Two NO buttons for UP / DOWN. - A PC control interface (HTML / JS). - A dartboard holder on the spindle nut carrier. - A wall mount, wall-mounted integration, or a mobile frame.
[0007] Upon power-up, the controller performs an automatic calibration run to the upper end position. Afterwards, the height can be changed via push buttons or PC commands. DRAWING DESCRIPTION Fig. Figure 1 shows an overall view of the device. Fig. Figure 2 shows a side view. Fig. Figure 3 shows a control scheme. Fig. Figure 4 shows assembly options.
Claims
Height-adjustable device for a dartboard, comprising at least one guide element for guiding a vertical movement of a dartboard holder, a means for generating a linear height adjustment of the dartboard holder, a drive means for actuating the means for height adjustment, at least one means for limiting the adjustment travel, and a control device for controlling the drive means, characterized in that the device enables a motor-generated, precisely adjustable height adjustment of the dartboard. Device according to claim 1, characterized in that the guide element comprises one or more linear, sliding or rolling guides. Device according to one of the preceding claims, characterized in that the drive means is an electric motor, a linear drive or another electromechanical drive system. Device according to one of the preceding claims, characterized in that the control device performs an automatic referencing or calibration of the height position. Device according to one of the preceding claims, characterized in that operation is carried out via at least one manual control element and / or an external control device. Device according to one of the preceding claims, characterized in that the device is designed as a wall-mounted, built-in version or freestanding mobile unit. Device according to one of the preceding claims, characterized in that the means for height adjustment comprises a rotaryally driven spindle with a spindle nut. Device according to one of the preceding claims, characterized in that the dartboard holder is guided via two parallel linear guides, each with at least one carriage. Device according to one of the preceding claims, characterized in that the height adjustment is carried out with a repeatability of at least 0.1 mm. Device according to one of the preceding claims, characterized in that the control device uses a motion profile with smooth acceleration and deceleration phases. Device according to one of the preceding claims, characterized in that at least one upper and one lower limit switch are provided for safely limiting the adjustment range. Device according to one of the preceding claims, characterized in that the drive means comprises a braking device which remains active in the end positions. Device according to one of the preceding claims, characterized in that the external control device is connected to the control device via a serial data connection, in particular USB.