PATENT CLAIM ANALYSIS

Application Number: 15895515
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-02
Patent Classification: ["279", "071000"]

Abstract:
A quick-change connecting mechanism and a quick-change screwdriver of the invention. Firstly, a connecting handle and an accommodating cavity are matched in a shaft-hole mode, during actual production and machining, the machining precision of round shafts and round holes is high, the matching and mounting precision of the round shafts and the round holes is much higher than that of hexagonal shafts and hexagonal holes, and thus the axial precision of the connecting handle or screwable tips is ensured after mounting; secondly, longitudinal locking bodies are arranged and longitudinally inserted into locking grooves in an abutting mode under the effect of a sliding sleeve, so that rotation torque is transmitted in the circumferential direction, and the torque of a connecting rod is transmitted to the connecting handle or the screwable tips. Meanwhile, the connecting handle is fixed in the mounting direction and is prevented from falling.

Claim (Index 7):
The quick-change connecting mechanism according to  claim 5 , wherein:\n the locking bodies are balls, the locking grooves are columnar grooves, and the spring is a compression spring; a fixed retainer ring is arranged on the connecting rod, and a sealing piece is also included; the compression spring is arranged on the connecting rod in a sleeving mode, then the sliding sleeve is arranged on the connecting rod in the sleeving mode, and the compression spring is arranged in the sliding sleeve; the sealing piece is fixed to the end, away from the open side of the accommodating cavity, of the sliding sleeve, and the two ends of the compression spring abut against the fixed retainer ring and the sealing piece separately, so that acting force parallel to the mounting direction of the connecting handle is applied to the sliding sleeve; the spring force of the compression spring is overcome in the direction opposite to the mounting direction, so that the sliding sleeve is pushed to reach the release position, and accordingly the connecting handle is released.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 88.0
- Lexical Diversity: 2.14865
- Patent Class: 279.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14891530', '15507106', '14258721', '15318669', '14602579']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7105880114755687
- 35 USC 102 Novelty (BERT): 0.4659049016765053
- Combined Prediction Score: 0.6861197004956624
- Mean Citation Score: 200.596306
- Max Citation Score: 211.25189
- Similarity Product: 147.15356299402652

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test