Bitclip
The spring-loaded bit holder with a lever principle addresses the malfunctions and safety issues of conventional holders by ensuring reliable and durable bit retention without moving parts, enhancing operational safety and efficiency.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- 竹原 浩二
- Filing Date
- 2024-11-26
- Publication Date
- 2026-06-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Conventional tool holders with movable parts are prone to malfunction and operational issues due to material differences and wear, leading to potential confusion and safety hazards during bit attachment and detachment.
A spring-loaded design with no moving parts utilizes a lever principle for secure bit retention, ensuring reliable attachment and detachment through a simple structure made of high-carbon steel.
The design provides high durability, reduces malfunctions, maintains stable performance over time, and enhances safety by eliminating the need for maintenance, thereby improving work efficiency and safety.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to a driver bit holder for tools.
Background Art
[0002] Conventional holders utilize the holding mechanisms shown in Patent Documents 1 and 2 to enable temporary holding. This makes it possible to group multiple holders in a key holder, improving the removal and attachment operations of multiple general-purpose bits suitable for work. Also, the user could quickly replace various necessary general-purpose bits according to the work content, significantly improving work efficiency. Furthermore, this design was also optimal for organizing and tidying up general-purpose bits.
[0003] However, since conventional holders are basically different in material from the holding mechanism of the literature, wear of the movable parts and accumulation of dirt rarely cause malfunctions during work or poor operation during removal and attachment, which may lead to confusion and danger.
[0004] Also, conventional holders have a pull-out method and a push-out method. If these are used incorrectly, the operation method is reversed, which may cause the user to become confused during work and pose a danger.
[0005] The holder of the present invention was devised with a design that eliminates movable parts. Since there are no movable parts, it can be intuitively operated and, once accustomed, can also be operated with one hand. Also, it can be used without removing gloves even in winter or cold regions, improving operability. Furthermore, it significantly reduces the risk of malfunction and can maintain stable performance over the long term, thus contributing to an improvement in work efficiency.
Prior Art Documents
Patent Documents
[0006]
Patent Document 1
Patent Document 1
[0007] The problem that this invention aims to solve is that, because the material of the holding mechanism is fundamentally different from that of the literature (※for this reason※), and because there are moving parts, malfunctions or operational problems during attachment and detachment may occasionally occur during work, posing a risk. [Means for solving the problem]
[0008] This design features a spring-loaded structure with no moving parts, ensuring secure retention of general-purpose bits and enabling reliable attachment and detachment through the application of the lever principle. [Effects of the Invention]
[0009] This invention utilizes spring material and is made of high-carbon steel, resulting in high durability. Furthermore, its simple structure and shape eliminate moving parts, significantly reducing the risk of malfunctions and failures. Additionally, users are required to perform no maintenance, allowing for long-term, worry-free use of a highly reliable, general-purpose bit holder. [Brief explanation of the drawing]
[0010] [Figure 1] The conventional holder A, general-purpose bits B (b1, b2, b3), and bit clip holding state C are shown. [Figure 2] Reference numerals 1 to 13 indicate the present invention. [Figure 3] The diagram shows a method for attaching and detaching the wall mounting bracket of the present invention (reference numerals 14 to 16). [Figure 4] Details of the 12 symmetrical R-bend portions and 8 symmetrical convex portions of the present invention are shown. [Figure 5] The front view, side view, oblique view, top view, and rear view of the bit clip of the present invention are shown. [Modes for carrying out the invention]
[0011] As shown in Figure 3, the bit clip of the present invention uses spring material and has a structure that applies the principle of leverage. By inserting the general-purpose bit (1) into (4) and moving the recess of (2) along the guide rail, secure fixing and quick removal can be achieved. Furthermore, the strength of the holding force can be widely adjusted by selecting the thickness and shape of the spring wire.
[0012] The bit clip of the present invention provides rapid attachment and detachment of general-purpose bits and stable working performance over long periods. Its simple structure allows for reduced manufacturing costs, and it is maintenance-free, providing a highly reliable tool bit holder. [Examples]
[0013] Insert 1 from the back into 4 (dotted line insertion opening) until it reaches the recess of 2. Slide 2 in the direction of 5 (symmetrical rail entrance guide). Lowering 3 (lever handle side) will cause it to pass through 6 (symmetrical rail passing point) and stop at 7 (symmetrical lever fulcrum entrance / exit). Lowering 3 further will cause 1 and 6 to make diagonal contact, preventing 3 from returning. 7 and 2 act as fulcrums for each other, and as the force increases in the direction of the force application point of 3, 8 (symmetrical convex part: maximum holding part) will spread outwards, 2 will pass 9 (symmetrical lever fulcrum entrance / exit) in the direction of the force application point, and the attachment will be completed at 10 (temporary fixing part). To release, move 3 in the opposite direction, 1 will hit 11 (pushing part), 2 will slide in the release direction, and the release will be complete once it passes 8. [Industrial applicability]
[0014] The bit clip of the present invention is widely available in the tool industry and contributes to improved work efficiency and safety. [Explanation of symbols]
[0015] Figure 1-A Example of a general-purpose bit shape Figure 1-B Conventional holder b1 Lowering type b2 Lifting type b3 Example of key holder usage Figure 1-C Example of driver bit mounting of a new bit clip Figure 2 shows symbols 1 to 13 1 General-purpose bit insertion part 2 General-purpose bit stopper recess 3 Handle side of the lever with symbol 2 as the fulcrum 4 Insertion port of the dotted line part (symbol 1) 5 Entrance guide of symbol 2 of the symmetrical rail 6 Passing point of the symmetrical rail 7 Symmetrical lever fulcrum inlet / outlet 8 Symmetrical convex part (maximum holding part) 9 Symmetrical lever fulcrum inlet / outlet 10 Temporary fixing (symbol 2) fixing part 11 Support with symbol 1 and push out symbol 2 to release 12 Symmetrical R-bending part 13 Key holder gathering part Figure 3 Dismounting method using (wall fitting) 14 Insert into 2 up to in procedure 1 (symbol 4) 15 Lower procedure 2 (symbol 2) down to 7 16 Stop at procedure 3 (symbol 7), so when lowering 3, 2 passes through 12 and the holding is completed Figure 4 Details of the present invention (symbols 12 and 8) Figure 5-D Bit clip shape d1 Front view d2 Side view d3 Inclined view d4 Top view d5 Rear view
Claims
1. The bit clip C has a structure without movable parts, securely holds the general-purpose bit A using spring material, and is characterized by its ability to be attached and detached by applying the principle of leverage.
2. The device is characterized in that by directing the point of force of 3 in the direction of attachment / detachment and moving the point of force of 3 so as to press the recess of 2 into the protrusion of 8, 8 slides into 12 while opening outwards, and can be attached and detached.
3. The bit clip's holding force can be adjusted simultaneously by the maximum holding force section (8) and the R-bending process (12). Furthermore, a wide range of holding strength adjustments are possible by selecting the thickness of the spring wire. The spring wire can be round or square, and its high-carbon steel construction ensures wear resistance and elasticity, allowing for long-term use.
4. The formation of the convex portion of the bent section (reference numeral 12R) is characterized by press working, bending, and build-up welding.
5. It is characterized by being a keychain, wall mount, and being incorporated into a dedicated rail in multiple units.