# US 12,214,480 B2 · Power tool > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,480 B2 - Document ID: US12214480B2 - Status: Granted - Kind: B2 - Application number: 18/249,436 - Filed: 2021-10-01 - Published: 2023-12-28 - Granted: 2025-02-04 - Earliest claimed: 2020-10-28 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch GmbH - Inventors: Agustin Monroy Aripez; Balazs Nagy - Web page: https://patentgrep.com/patent/US12214480B2 ## CPC - B25F 5/02: Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} - H01M 50/202: Casings or frames around the primary casing of a single cell or a single battery - H01M 50/218: characterised by the material - H01M 50/247: specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop - Y02E 60/10: Energy storage using batteries - B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)} - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A power tool has a housing. The housing includes a battery pack attachment area. The battery pack attachment area comprises a battery pack insertion direction, a battery pack insertion opening and an end portion opposite from the battery pack insertion opening in the battery pack insertion direction. The end portion extends across the battery pack insertion direction and has at least one first contact surface for a forward portion of an inserted battery pack. Battery pack guide sections extend parallel to the battery pack insertion direction between the battery pack insertion opening and the end portion and that are spaced apart from each other. The battery pack attachment area comprises an insert which extends along the end portion and includes the at least first contact surface. ## Claims ### Claim 1 A power tool, comprising: a housing, the housing defining in part a battery pack attachment area, the battery pack attachment area including a battery pack insertion opening, an end portion opposite from the battery pack insertion opening in a battery pack insertion direction and extending transversely to the battery pack insertion direction, battery pack guide sections defined at least in part by the housing and extending parallel to the battery pack insertion direction between the battery pack insertion opening and the end portion and that are spaced apart from each other, and an insert, the insert having at least a base segment extending along the end portion and including at least one first contact surface configured to be contacted by a forward portion of an inserted battery pack. ### Claim 2 (depends on 1) The power tool of claim 1, wherein the at least one first contact surface protrudes from adjacent portions of the battery pack attachment area. ### Claim 3 (depends on 2) The power tool of claim 2, wherein the insert has two additional segments extending parallel to the battery pack insertion direction, extending away from the base segment and comprising at least parts of the battery pack guide sections adjacent to the end portion. ### Claim 4 (depends on 3) The power tool of claim 3, wherein: the two additional segments are arranged on either side of a holder for battery pack contacts; the base segment extends along the holder and is arranged adjacent to the holder; and the holder is arranged between the base segment and the battery pack insertion opening. ### Claim 5 (depends on 4) The power tool of claim 4, wherein the length of the two additional segments between the holder and tips of the two additional segments closest to the battery pack insertion opening is between 30% and 50% of the total length of the battery pack guide sections. ### Claim 6 (depends on 3) The power tool of claim 3, wherein the insert comprises two first contact surfaces and each first contact surface is arranged on the base segment adjacent the two additional segments. ### Claim 7 (depends on 3) The power tool of claim 3, wherein the additional segments have two second contact surfaces for rails of the inserted battery pack and the two second contact surfaces protrude from adjacent portions of the battery pack guide sections of the battery pack attachment area. ### Claim 8 (depends on 7) The power tool of claim 7, wherein the two second contact surfaces are facing each other and a distance between the two second contact surfaces is smaller than a distance between the remainders of the guide sections that extend between the two additional segments and the battery pack insertion opening. ### Claim 9 (depends on 8) The power tool of claim 8, wherein the battery pack guide sections are arranged along first side walls of the battery pack attachment area, the battery pack attachment area further comprising a bottom portion extending between the first side walls, the battery pack insertion opening, and the end portion, wherein the battery pack guide sections and the bottom portion define grooves for the rails of the inserted battery pack, and wherein the distance between the additional segments and the bottom portion is smaller than the distance between the remainders of the battery pack guide sections and the bottom portion forming third contact surfaces for the rails of the inserted battery pack. ### Claim 10 (depends on 3) The power tool of claim 3, wherein the base segment has a first height and the two additional segments have a second height and wherein the first height is bigger than the second height. ### Claim 11 (depends on 3) The power tool of claim 3, wherein tips of the two additional segments closest to the battery pack insertion opening have respective pockets configured to receive respective insert retaining protrusions of the housing. ### Claim 12 (depends on 11) The power tool of claim 11, wherein the insert has an outer corner area on each side of the two additional segments and the base segment and a second pocket in each of those outer corner areas. ### Claim 13 (depends on 12) The power tool of claim 12, wherein the insert has a third pocket on each additional segment between the first and second pocket. ### Claim 14 (depends on 1) The power tool of claim 1, wherein the at least one first contact surface and the battery pack guide sections define an obtuse angle. ### Claim 15 (depends on 1) The power tool of claim 1, wherein the insert has pockets configured to receive insert retaining protrusions of the housing. ### Claim 16 (depends on 1) The power tool of claim 1, wherein: the housing is made from a first material; the insert is made from a second material; the first material and third material of the portions of the inserted battery pack that get in contact with each other have a first coefficient of friction; the second material and fourth material of the portions of the inserted battery pack that get in contact with each other have a second coefficient of friction; and the first coefficient of friction is bigger than the second coefficient of friction. ### Claim 17 (depends on 16) The power tool of claim 16, wherein the second material of the insert is one of polyoxymethylene (POM), acrylonitrile butadiene styrene (ABS), Polycarbonate/Acrylonitrile Butadiene Styrene (PC/PC), acrylic plastics, polycarbonate (PC), polycarbonate/poly ethylene (PC/PE), polyethylene terephthalate (PET), polypropylene (PP), polyvinyl chloride (PVC) and polytetrafluoroethylene (PTFE). ### Claim 18 A power tool having a housing, the housing made from a first material and defining in part a battery pack attachment area, the battery pack attachment area comprising a battery pack insertion opening; an end portion opposite from the battery pack insertion opening in a battery pack insertion direction and extending across the battery pack insertion direction, the end portion having at least one first contact surface for a forward portion of an inserted battery pack; and battery pack guide sections that extend parallel to the battery pack insertion direction between the battery pack insertion opening and the end portion and that are spaced apart from each other; wherein the at least first contact surface is made from a second material, wherein the first material and third material of the inserted battery pack that get in contact with each other have a first coefficient of friction, wherein the second material and fourth material of the forward portion that get in contact with each other have a second coefficient of friction, and wherein the first coefficient of friction is greater than the second coefficient of friction. ### Claim 19 (depends on 18) The power tool of claim 18, wherein the second material is an injection molded part that extends along the at least one first contact surface and along parts of the battery pack guide sections adjacent to the at least one first contact surface. ### Claim 20 (depends on 18) The power tool of claim 18, wherein the second material is one of polyoxymethylene (POM), acrylonitrile butadiene styrene (ABS), Polycarbonate/Acrylonitrile Butadiene Styrene (PC/PC), acrylic plastics, polycarbonate (PC), polycarbonate/poly ethylene (PC/PE), polyethylene terephthalate (PET), polypropylene (PP), polyvinyl chloride (PVC) and polytetrafluoroethylene (PTFE).