Anchor bolt
阅读：223发布：2021-05-24
专利汇可以提供Anchor bolt专利检索，专利查询，专利分析的服务。并且An anchor bolt assembly of the type wherein expansion members are slidably mounted on an expansion portion of the bolt by means of a brace interconnecting the expansion members and passing over the bolt end. The expansion members have the shape of wings stamped together with the brace legs and its base from one piece of sheet material. The brace base engages the end face of the bolt. The wings collectively encircle the greater part of the circumference of the conical expansion bolt portion. Hook means formed by bent rear corners of rear wing parts extend beyond the bolt circumference in an outward-backward direction.，下面是Anchor bolt专利的具体信息内容。
1. An anchor bolt assembly comprising a bolt including an elongated cylindrical bolt portion and a wedge-shaped expansion portion of reduced diameter extending in prolongation of said bolt portion towards the front of the bolt, said wedge-shaped expansion portion having a diameter which increases towards the front of the bolt, expansion members mounted along a part of the length of said expansion portion and substantially within the circumference of said bolt portion, a brace member engaged over the front end of said bolt and formed integrally with said expansion members thereby to interconnect the same, said brace member and expansion members being constructed from sheet material, said brace member including rearwardly extending brace legs, said expansion members including wing plates connected to the brace legs in rearward extension thereof, said wing plates substantially encircling said bolt expansion portion to constitute anchoring means to clamp the bolt in a bore in a structure by outward expansion of said wing plates upon rearward movement of the expansion portion, said wing plates each having a rear edge with outwardly bent corners extending outwardly beyond the circumference of the bolt at an inclination opposite to the inclination of the conical expansion portion of the bolt to constitute a hook means to engage in said bore and resist rotation of the bolt assembly in the bore and withdrawal of the bolT assembly from the bore.
2. An anchor bolt assembly as claimed in claim 1, wherein said brace legs merge directly with said wing plates, the latter being circumferentially enlarged and having forward edges cooperatively extending along the full circumference of the bolt portion.
3. An anchor bolt as claimed in claim 1 wherein said wing plates are provided with slits extending inwardly from a rear edge of a respective wing plate to define a strip between remaining rear sections of said wing plate, said strip being connected with the remainder of said wing plate along a line about which said strip is folded 180* into engagement with and parallel to the remainder of said wing plate.
4. An anchor bolt as claimed in claim 3 wherein said bolt includes short ribs extending into the space which is left free by said folded wing strips.
5. An anchor bolt as claimed in claim 1 further comprising rib shaped strips integral with said bolt portion and of the same diameter thereas and extending longitudinally along the wedge-shaped expansion portion between said wing plates.
6. An anchor bolt as claimed in claim 5 wherein said rib shaped strips have rear enlarged foot portions where they merge into said bolt portion.
7. An anchor bolt assembly comprising a bolt including an elongated cylindrical bolt portion and a wedge-shaped expansion portion of reduced diameter extending in prolongation of said bolt portion towards the front of the bolt, said wedge-shaped expansion portion having a diameter which increases towards the front of the bolt, expansion members mounted along a part of the length of said expansion portion and substantially within the circumference of said bolt portion, a brace member engaged over the front end of said bolt and formed integrally with said expansion members thereby to interconnect the same, said brace member and expansion members being constructed from sheet material, said brace member including rearwardly extending brace legs, said expansion members including wing plates connected to the brace legs in rearward extension thereof, said wing plates including forward portions substantially encircling said bolt expansion portion to constitute anchoring means to clamp the bolt in a bore in a structure by outward expansion of said wing plates upon rearward movement of the expansion portion, said wing plates including rear portions extending outwardly beyond the circumference of the bolt in spaced relation from said bolt expansion portion at an inclination opposite to the inclination of the conical expansion portion of the bolt to constitute a hook means to engage in said bore and resist rotation of the bolt assembly in the bore and withdrawal of the bolt assembly from the bore, each wing plate being provided with a slit extending between said forward and rear portions, said slit partially traversing the associated wing plate through the greater part of its breadth to provide resilience for said rear portion.
8. An anchor bolt assembly as claimed in claim 7, wherein said brace legs merge directly with said wing plates, the latter being circumferentially enlarged and having forward edges cooperatively extending along the full circumference of the bolt portion.
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