Variable depth router and base
First Claim
1. A portable router base assembly comprising:
- a housing having a foot, an upper portion, and an interior defined at least in part by an interior surface, said upper portion including an upper surface, said housing interior configured to receive a portion of a portable router, and said interior surface including a radially outwardly extending annular recess adjacent said upper surface; and
a retaining ring including an interior, a generally cylindrical portion, and a top surface, said top surface at least partially defining an opening to said retaining ring interior, said cylindrical portion at least partially disposed in said annular recess of said housing and fixedly secured thereto so as to be non-removable therefrom, and said retaining ring interior configured to receive said portion of said portable router through said opening;
wherein said retaining ring includes a lip portion adjacent said top surface, said lip portion having a radially outwardly extending surface that engages with a retaining lever on said portable router for releasably securing said portable router to said retaining ring.
1 Assignment
0 Petitions
Accused Products
Abstract
A variable depth router and base assembly can include a ring-type, depth-adjustment mechanism. The base assembly can be a two-piece base wherein one piece is disposed inside the other. One of the pieces can include an annular lip or recess that can cooperate with levers on the adjustment ring to secure the router to the base assembly. The two-piece base assembly can facilitate the manufacture of the base assembly, can allow the use of different materials for different portions of the base assembly, and can provide a more economical base assembly. The use of differing materials can facilitate the using of more wear-resistant materials where needed while avoiding the costs of such materials in locations where it is not needed. The two-piece base assembly may allow various features to be economically incorporated into one of the pieces, thereby facilitating the manufacturing and assembly of the base assembly.
36 Citations
26 Claims
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1. A portable router base assembly comprising:
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a housing having a foot, an upper portion, and an interior defined at least in part by an interior surface, said upper portion including an upper surface, said housing interior configured to receive a portion of a portable router, and said interior surface including a radially outwardly extending annular recess adjacent said upper surface; and a retaining ring including an interior, a generally cylindrical portion, and a top surface, said top surface at least partially defining an opening to said retaining ring interior, said cylindrical portion at least partially disposed in said annular recess of said housing and fixedly secured thereto so as to be non-removable therefrom, and said retaining ring interior configured to receive said portion of said portable router through said opening; wherein said retaining ring includes a lip portion adjacent said top surface, said lip portion having a radially outwardly extending surface that engages with a retaining lever on said portable router for releasably securing said portable router to said retaining ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power tool assembly comprising:
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a portable router having a head portion, a generally cylindrical portion, a motor unit, and a spindle operable to receive a working tool; a fixed-base assembly operable to receive said portable router and support said portable router in a desired axial position relative to a working surface, said fixed-base assembly including; a housing having a foot, an upper portion, and an interior defined at least in part by an interior surface, said upper portion including an upper surface, said housing interior receiving said cylindrical portion of said portable router, and said interior surface including a radially outwardly extending annular recess adjacent said upper surface; and a retaining ring including an interior, a generally cylindrical portion, and a top surface, said top surface at least partially defining an opening to said retaining ring interior, said retaining ring cylindrical portion at least partially disposed in said annular recess of said housing and fixedly secured thereto so as to be non-removable therefrom, and said retaining ring interior configured to receive said cylindrical portion of said portable router through said opening; wherein said retaining ring cylindrical portion includes at least one axial retaining feature, and said at least one axial retaining feature has a radially outwardly extending tab that engages with said annular recess in said housing to fixedly secure said retaining ring to said housing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A power tool assembly comprising:
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a portable router having a head portion, a generally cylindrical portion, a motor unit, and a spindle operable to receive a working tool; a fixed-base assembly operable to receive said portable router and support said portable router in a desired axial position relative to a working surface, said fixed-base assembly including; a housing having a foot, an upper portion, and an interior defined at least in part by an interior surface, said upper portion including an upper surface, said housing interior receiving said cylindrical portion of said portable router, and said interior surface including a radially outwardly extending annular recess adjacent said upper surface; and a retaining ring including an interior, a generally cylindrical portion, and a top surface, said top surface at least partially defining an opening to said retaining ring interior, said retaining ring cylindrical portion at least partially disposed in said annular recess of said housing, and said retaining ring interior configured to receive said cylindrical portion of said portable router through said opening, wherein said portable router includes an adjustment ring that rotates relative to said cylindrical portion of said portable router to adjust an axial position of said portable router relative to said fixed-base assembly, said retaining ring includes a lip portion adjacent said top surface, said lip portion having a radially outwardly extending surface, and said adjustment ring includes at least one retaining lever with a tang that engages with said lip to releasably secure said portable router to said retaining ring.
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19. A router base assembly for removably receiving a motor unit having a generally cylindrical lower portion, the router base assembly comprising:
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a housing having a lower foot portion and an upper generally cylindrical portion having a generally cylindrical interior for receiving the lower portion of the motor unit, and a retaining ring having a lower portion and a generally cylindrical upper portion defining a top surface, wherein said lower portion of said retaining ring is permanently joined to the upper generally cylindrical portion of said housing so that the router base assembly comprises a unitary assembly, and further wherein said retaining ring includes a radially displaced segment in said upper portion that engages with a latch member on said motor unit for releasably securing said motor unit to said retaining ring. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification