# US 6,296,517 B1 · Terminal protective cap > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,296,517 B1 - Document ID: US6296517B1 - Status: Granted - Kind: B1 - Application number: 09/577,043 - Filed: 2000-05-24 - Granted: 2001-10-02 - Earliest claimed: 1999-05-27 - Assignees: Sumitomo Wiring Systems, Ltd. - Inventors: Takanori Ito; Takashi Suzuki; Satoshi Amihiro - Web page: https://patentgrep.com/patent/US6296517B1 ## CPC - H01R 13/52: Dustproof, splashproof, drip-proof, waterproof, or flameproof cases - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract The present invention provides a terminal protective cap that covers a terminal of an electric wire and protects the terminal from exposure. The terminal protective cap has an engaging portion that engages with a projecting portion provided on an outer periphery of the terminal. This prevents the terminal from being exposed. Thus, the terminal is securely protected. ## Claims ### Claim 1 A terminal protective cap configured to cover a terminal of an electric wire and to protect the terminal from exposure, the terminal having a portion connected to the electric wire, an insertion opening and a projecting portion positioned different from the portion connected to the electric wire, said terminal protective cap comprising: a hollow portion having an opening at a proximal end thereof to receive the terminal; a concave portion provided at a distal end of said hollow portion, said concave portion having an opening on the bottom and covering a retaining member when the retaining member is provided to pass through the insertion opening in the terminal and said opening of said concave portion; an engaging portion projecting outwardly from said concave portion and engageable with the projecting portion projecting outwardly from an outer periphery of the terminal, said engaging portion including a hole to accommodate substantially the entire projecting portion and to cover substantially the entire bottom of the projecting portion and an opening through which the projecting portion of the terminal is inserted into said hole. ### Claim 2 (depends on 1) The terminal protective cap according to claim 1, wherein said opening of said engaging portion is provided in a bottom surface of said engaging portion. ### Claim 3 (depends on 1) The terminal protective cap according to claim 1, wherein said opening of said engaging portion comprises a slot. ### Claim 4 (depends on 1) The terminal protective cap according to claim 1, wherein said opening of said engaging portion comprises a slit. ### Claim 5 (depends on 1) The terminal protective cap according to claim 1, wherein said engaging portion is formed to have substantially the same shape as and to closely conform to the outer surface of the projecting portion. ### Claim 6 (depends on 1) The terminal protective cap according to claim 1, wherein the hollow portion forms a tubular shape without any opening in a peripheral surface thereof and having a size that allows the terminal to pass therethrough. ### Claim 7 A method for mounting a terminal protective cap to a terminal having a projecting portion projecting outwardly from an outer periphery of the terminal and an insertion aperture to receive a retaining member inside the closed loop, the terminal protective cap having an engaging portion including a hole accommodating substantially the entire projecting portion, the method comprising: inserting the terminal into the terminal protective cap; aligning an insertion aperture provided in the terminal with an opening portion provided in a bottom of the terminal protective cap so that the retaining member can pass through the insertion aperture and the opening portion; fixing the terminal to an electrical component by using the retaining member while the terminal protective cap is flipped over; turning the terminal protective cap to cover the terminal with the retaining member; and pushing a top of an engaging portion so that the substantially entire projecting portion is accommodated in a hole provided in the engaging portion through an opening provided in a bottom of the engaging portion. ### Claim 8 (depends on 7) The method of claim 7, wherein the terminal protective cap includes a hollow portion formed as a continuous tubular shape without any opening in a peripheral surface thereof and having a size that allows the terminal to pass therethrough, and the inserting is performed by inserting the terminal into the terminal protective cap through hollow portion. ### Claim 9 In combination with a terminal for an electric wire, said terminal including a portion connected to the electric wire, an insertion opening and a projecting portion on an outer periphery thereof and positioned different from the portion connected to the electric wire, a terminal protective cap that covers said terminal, said terminal protective cap comprising: a hollow portion having an opening at a proximal end thereof to receive the terminal; a concave portion provided at a distal end of said hollow portion, said concave portion having an opening on the bottom and covering a retaining member when the retaining member is provided to pass through the insertion opening in the terminal and said opening of said concave portion; and an engaging portion projecting outwardly from said concave portion from an outer periphery of said concave portion and being engageable with the projecting portion provided on the outer periphery of the terminal, said engaging portion including a hole to accommodate substantially the entire projecting portion and covering substantially entire bottom of the projecting portion and an opening through which the projecting portion of the terminal is inserted into said hole. ### Claim 10 (depends on 9) The terminal protective cap according to claim 9, wherein said opening of said engaging portion is provided in a bottom surface of said engaging portion. ### Claim 11 (depends on 9) The terminal protective cap according to claim 9, wherein said engaging portion is formed to have substantially the same shape as and to closely conform to the outer surface of the projecting portion.