Bone Punch Securing Element for Assembly and Cleaning
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Solution Overview
Problem
Existing bone punches face difficulties in assembly and disassembly due to leaf-spring configurations that can weaken or fail to provide sufficient restoring force, and the inability to completely separate the punching slide from the base body for cleaning, leading to potential contamination and reassembly issues.
Innovation Solution
A bone punch design featuring a punching slide with a securing element that remains pivotably connected to the guide shaft and handle after separation, utilizing an axial compression spring and guide pin for easy assembly and disassembly, and a securing element with a bearing section that can be detached for complete separation, ensuring the securing element is not externally accessible during normal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If leaf-spring configurations are used for restoring springs, then the bone punch can maintain a compact structure, but the restoring force may be insufficient and assembly/disassembly becomes difficult
Solution Approach 1:
The restoring spring system is segmented into a modular design where the punching slide can be completely separated from the guide shaft and handle assembly. The securing element with detachable connection allows the spring mechanism to be divided into separable components, enabling easy assembly and disassembly while maintaining reliable restoring force through the coil spring configuration.
Solution Approach 2:
The patent changes the spring configuration from leaf-spring to coil spring, altering the physical parameters of the restoring mechanism. This parameter change enables both sufficient restoring force and easy assembly/disassembly, as the coil spring can be independently replaced or adjusted without affecting the entire bone punch structure.
2Productivity
If the punching slide is completely separated from the base body for cleaning, then cleaning efficiency improves, but the securing element becomes externally accessible and may become contaminated
Solution Approach 1:
The securing element incorporates a dynamic sealing mechanism that adapts during assembly and disassembly. When the punching slide is attached, the sealing element covers the securing element opening, preventing contamination. When separated for cleaning, the system allows full access while the sealing mechanism protects against harmful factors during normal operation, thus resolving the contradiction between cleaning efficiency and contamination prevention.
3Ease of operation
If the actuating lever is retracted to allow punching slide removal, then disassembly becomes possible, but the adjusting lever no longer operatively interacts with the punching slide
Solution Approach 1:
The patent implements preliminary action by requiring the actuating lever to be retracted to a specific position before the punching slide can be removed. This preliminary step ensures that the adjusting lever is disengaged from the punching slide, preventing operational interference during disassembly. The T-shaped guide elements are designed to allow smooth transition through this preliminary action, making the additional step intuitive and manageable.
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
This configuration simplifies the assembly and disassembly process, maintains the bone punch's operational integrity by preventing external contamination, and allows for complete separation and reassembly, enhancing handling and cleaning efficiency.
Implementation Method 1
against the spring action of a restoring spring
Implementation Method 2
axial compression spring
Implementation Method 3
Guide elements, which have a T-shaped profile, engage one another in a positive-locking manner
Data Source
AI summary
A bone punch includes a base body with a guide shaft (3), a handle (4) and a punching slide (8) supported adjustably along an upper guiding surface (13) of the guide shaft (3). An actuating lever (6) with an adjusting lever (65) interacts with the punching slide (8) for adjustment against a spring action of a restoring spring (46). In a distal end area (10), the punching slide (8) has a securing element (45), which extends between two side walls (25, 26) of the punching slide (8) on the guide shaft (3). The securing element (45) has two laterally protruding positive-locking elements (51, 52). Each side wall (25, 26) is provided with an inner, distally limited longitudinal groove (40, 41) running in the longitudinal direction (9) of the guide shaft (5). Each positive-locking element (51, 52) is longitudinally displaceably inserted into a respective one of the grooves (40, 41).