Spring-Loaded Detent Bolt With Rotational Locking Alignment
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Solution Overview
Problem
Existing spring-loaded locking bolts lack precise direction-dependent adjustment of the approach slope, making it difficult to determine the rotational position of the adjusting pin, which is crucial for accurate fixation and operation.
Innovation Solution
Incorporating an internal locking lug that engages with a recess in the guide sleeve, allowing the actuation button to be fixed in a specific rotated position, and using a compression spring to facilitate movement between locking positions, while an adjustable screw mechanism maintains rotational alignment and axial position control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the adjusting pin is made rotatable around its longitudinal axis to enable direction-dependent locking, then the versatility of the locking mechanism is improved, but the ability to precisely determine the rotational position and orientation of the ramp is worsened
Solution Approach 1:
The locking lug and recess are pre-positioned on the actuating button and guide sleeve respectively to establish a predetermined rotational position. This preliminary positioning ensures that when the button is rotated into the locked position, the ramp achieves the correct orientation without requiring precise manual alignment, thus resolving the contradiction between rotatability and positioning precision.
Solution Approach 2:
The locking lug acts as an intermediary element between the actuating button and the guide sleeve. It mediates the rotational positioning by engaging with the recess to fix the button's rotational position, thereby enabling precise orientation of the ramp while maintaining the ability to rotate the button for direction-dependent locking.
2Ease of operation
If the actuating button is designed to rotate freely during operation, then the ease of operation is improved, but the reliability of maintaining a specific rotational position for accurate locking is worsened
Solution Approach 1:
The actuating button is designed with dynamic characteristics: it can rotate freely during the operation to allow easy manipulation, but the locking lug and recess mechanism dynamically engages to fix the rotational position when locking is achieved. This dynamic design resolves the contradiction between operational flexibility and positional reliability.
Solution Approach 2:
The locking mechanism is self-regulating through the spring-loaded adjusting pin. When the button rotates into the correct position, the locking lug automatically engages with the recess to maintain that position, and the spring force ensures the pin remains securely locked. The system self-corrects and maintains its state without external intervention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise adjustment and operation of the locking bolt without errors, ensuring accurate alignment of the run-up slope and secure fixation or disengagement, enhancing the locking mechanism's reliability and usability.
Implementation Method 1
an axial compression spring is provided, which presses the adjusting pin of the locking bolt into an axial end position
Implementation Method 2
the actuating button comprises at least one inner locking lug which engages in a corresponding recess in the side wall of the sleeve section of the guide sleeve in the locked position and fixes the actuating button, which is engaged under spring force, in a rotationally fixed position
Data Source
Figure 1
Figure 2~4
Figure 5~8
AI summary
A spring-loaded detent pin (1) with a guide sleeve (30, 40) screwed into an associated bore in a machine or furniture part, and an adjusting pin (20, 20') axially displaceable in the guide sleeve (30, 40), wherein the adjusting pin (20, 20') can be moved into at least two detent positions in the guide sleeve (30, 40), which is adjustable from a locking position projecting axially from the guide sleeve (30, 40) against the actuating force of an axial compression spring (6) to a retracted neutral position not projecting axially from the guide sleeve (30, 40), and which has a locking end (2) and an actuating end (22, 22') in conjunction with an actuating button (10, 10'), wherein the actuating button (10, 10') has an outer sleeve (12) with which the actuating button (10, 10') is axially displaceably mounted on a sleeve section (33, 43) of the guide sleeve (30, 40), wherein the actuating button (10,10') comprises an inner locking lug (15) which engages in a corresponding recess (39) in the side wall of the sleeve section (33, 43), locking in the locked position and fixing the actuating button (10, 10'), which is engaged under spring force, against axial rotation about the central axis (5) of the locking bolt (1) and in the neutral position the fixed position of the locking lug (15) is released and the actuating button (10, 10') can again be rotated about the central axis (5).