# US 10,246,018 B1 · Step installation structure of the truck > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,246,018 B1 - Document ID: US10246018B1 - Status: Granted - Kind: B1 - Application number: 15/788,514 - Filed: 2017-10-19 - Published: 2019-04-25 - Granted: 2019-04-02 - Earliest claimed: 2017-10-19 - Assignees: Shu-Ling Chen; Daven Chang - Applicants: Shu-Ling Chen; Daven Chang - Inventors: Shu-Ling Chen - Web page: https://patentgrep.com/patent/US10246018B1 ## CPC - B60R 3/02: Retractable steps {or ladders, e.g. movable under shock (B60R3/005 takes precedence)} - B60D 1/58: Auxiliary devices - B60D 1/62: involving supply lines, electric circuits or the like - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - B60D: VEHICLE CONNECTIONS ## Abstract A step installation structure of the truck includes at least a step support and a fixing member. Said step support is provided with a base for setting with the step assembly, a frame member is provided on the rear side of the base, which is used to insert inside the receiver hitch of the truck; said frame member is set with a plurality of perforations. Said fixing member is provided with a clamp body and a threaded bolt, the clamp body is set with a clip plate and a push plate which are arranged perpendicular to each other, the clip plate and the push plate are provided with a screw nut thereon separately; the end of the threaded bolt is provided with an anti-shedding member. Therefore, with the innovative fixing member, the step support can be more securely combined with the truck. ## Claims ### Claim 1 A step installation structure of a truck comprising a step support and a fixing member, wherein: the step support comprises a base for connecting with a step assembly, and a frame member provided on a rear side of the base and configured to be inserted into a receiver hitch of the truck; the frame member has a sidewall defining a hollow channel and a plurality of perforations are formed on the sidewall, a position of each perforation corresponds to a position of a pin opening of the receiver hitch so that a depth of the frame member inserted into the receiver hitch can be adjusted; the fixing member comprises a clamp body and a threaded bolt, the clamp body is configured to be inserted into the hollow channel of the frame member when assembled, and comprises a clip plate and a push plate which are arranged perpendicular to each other, the clip plate is provided with a screw nut thereon, the screw nut of the clip plate matches with the threaded bolt so that the screw nut of the clip plate and the threaded bolt clamp the frame member and the receiver hitch together; one end of the threaded bolt is provided with an anti-shedding member to prevent the threaded bolt from falling off due to severe vibration; wherein the push plate is perpendicular to an axis of the hollow channel when assembled and is provided with a screw nut thereon matching with the threaded bolt, the threaded bolt is screwed into the screw nut of the push plate when assembling so that a user can hold the threaded bolt to align the screw nut of the clip plate with the perforations and the pin opening. ### Claim 2 (depends on 1) The step installation structure of the truck according to claim 1, wherein said base is a folding base. ### Claim 3 (depends on 1) The step installation structure of the truck according to claim 1, wherein the step assembly is provided with one or more of LED lights, a reversing radar, a camera, an antenna, or a signal receiver. ### Claim 4 (depends on 1) The step installation structure of the truck according to claim 1, wherein the clamp body further comprises at least one support plate to increase the structural strength of the fixing member. ### Claim 5 (depends on 1) The step installation structure of the truck according to claim 1, wherein-said anti-shedding member is a screw nut. ### Claim 6 (depends on 1) The step installation structure of the truck according to claim 1, wherein said anti-shedding member is a pin structure. ### Claim 7 (depends on 1) The step installation structure of the truck according to claim 1, wherein said anti-shedding member is a combination of a screw nut and a pin structure. ### Claim 8 A step installation structure of a truck comprising a step support and a fixing member, wherein: the step support comprises a base for connecting with a step assembly, and a frame member provided on a rear side of the base and configured to be inserted into a receiver hitch of the truck; the frame member has a sidewall defining a hollow channel and a long slot is formed on the sidewall, the long slot corresponds to a pin opening of the receiver hitch so that the depth of the frame member inserted into the receiver hitch can be adjusted continuously; the fixing member comprises a clamp body and a threaded bolt, the clamp body is configured to be inserted into the hollow channel of the frame member when assembled, the clamp body comprises a clip plate and a push plate which are arranged perpendicular to each other, the clip plate is provided with a screw nut thereon, the screw nut of the clip plate matches with the threaded bolt so that the screw nut of the clip plate and the threaded bolt can clamp the frame member and the receiver hitch together; one end of the threaded bolt is provided with an anti-shedding member to prevent the threaded bolt from falling off due to severe vibration; wherein the push plate is perpendicular to an axis of the hollow channel when assembled and is provided with a screw nut thereon, the threaded bolt can be screwed into the screw nut of the push plate so that a user can hold the threaded bolt to align the screw nut of the clip plate with the long slot and the pin opening. ### Claim 9 (depends on 8) The step installation structure of the truck according to claim 8, wherein said base is a folding base. ### Claim 10 (depends on 8) The step installation structure of the truck according to claim 8, wherein the step assembly is provided with one or more of LED lights, a reversing radar, a camera, an antenna, or a signal receiver. ### Claim 11 (depends on 8) The step installation structure of the truck according to claim 8, wherein the clamp body further comprises at least one support plate to increase the structural strength of the fixing member. ### Claim 12 (depends on 8) The step installation structure of the truck according to claim 8, wherein said anti-shedding member is a screw nut. ### Claim 13 (depends on 8) The step installation structure of the truck according to claim 8, wherein said anti-shedding member is a pin structure. ### Claim 14 (depends on 8) The step installation structure of the truck according to claim 8, wherein said anti-shedding member is a combination of a screw nut and a pin structure.