Bicycle trainer having enhanced freedom of motion

Abstract

A support for a front bicycle fork having a base and a support post, flexibly, but constrainedly, supported by the base. Also, a fork support is mounted on the support post. Finally, the support post is susceptible to sufficient movement to permit a rider on a bicycle with a front fork mounted on the fork support to move or rotate the front fork.

Claims

1. A support for a front bicycle fork, comprising: (a) a base; (b) a support post, flexibly, but constrainedly, supported by said base, said support post including a forward-projecting first tongue; (c) a fork support mounted on said support post and connected to said first tongue; and (d) an additional post connected to said base and that includes a forward-projecting second tongue rigidly affixed to a top of said additional post, said second tongue being coupled to a forward portion of said first tongue by a resiliently deformable element, (e) wherein said support post is (i) susceptible to sufficient movement to permit a rider on a bicycle with a front fork mounted on said fork support to move or rotate said front fork, and (ii) constrained by said additional post.

2. The support for a front bicycle fork of claim 1, wherein said resiliently deformable element is a rubber cylinder.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) Various embodiments of the invention are disclosed in the following detailed description and accompanying drawings.

(2) FIG. 1 is a plan view of a front bicycle fork supporting assembly, according to the present invention.

(3) FIG. 2 is an isometric view of the assembly of FIG. 1.

(4) FIG. 3 is a front view of the assembly of FIG. 1.

(5) FIG. 4 is a side view of the assembly of FIG. 1.

(6) FIG. 5 is a rear view of the assembly of FIG. 1.

(7) FIG. 6 is an isometric view of an alternative embodiment of a front bicycle fork supporting assembly.

DETAILED DESCRIPTION AND EMBODIMENTS

(8) The following is a detailed description of exemplary embodiments to illustrate the principles of the invention. The embodiments are provided to illustrate aspects of the invention, but the invention is not limited to any embodiment. The scope of the invention encompasses numerous alternatives, modifications and equivalent; it is limited only by the claims.

(9) Numerous specific details are set forth in the following description in order to provide a thorough understanding of the invention. However, the invention may be practiced according to the claims without some or all of these specific details. For the purpose of clarity, technical material that is known in the technical fields related to the invention has not been described in detail so that the invention is not unnecessarily obscured.

(10) To assist the description of the scope and its components the coordinate terms [upper, lower, front and rear] are used to describe the disclosed embodiments. The terms are used consistently with the description of the exemplary applications and are in reference to the position of the bicycle trainer portion, relative to the orientation of a rider.

(11) FIGS. 1-5 show a bicycle trainer portion 10, that is designed to be used to support the front wheel fork of a bicycle, in conjunction with an assembly for supporting the rear of a bicycle, as illustrated in U.S. Pat. No. 10,933,291. A front fork receiver 12 is adapted to receive the front bicycle fork (not shown) and to permit rotation thereof. Receiver 12 is rotatably supported by tilting fork post 14, which is itself vertically-rotatably supported at hinge 15 (defining a fork tilt axis), by a sliding cross-beam 16.

(12) A post constraining mechanism includes a rigid reaction column 18, which is rigidly supported by cross-beam 16, and which is flexibly coupled to the fork receiver 12, by a rigid column tongue 20, a flex-coupling 22 (also referred to as a resiliently deformable element) and a fork receiver tongue 24. Both tongues 20 and 24 are rigid, whereas flex-coupling 22 is a cylinder of rubber or similar resiliently deformable material. Accordingly, although support 12 can tilt from side-to-side as post 14 swings from side-to-side, that movement is constrained within a range, and the resistance becomes stronger as flex-coupling is flexed and resists further deformation with greater force. As noted in FIG. 3, the axis of rotation of the receiver 12 (and thereby the bicycle front fork) is defined as the center axis of flex-coupling 22. Further the resilience of flex-coupling 22 urges receiver 12 back into a horizontal position. Cross-beam 16 is slidingly mounted in a base 25, by way of a slot 26 (FIG. 2), with the movement of cross-beam 16 being resisted by a rubber band 28.

(13) An alternative embodiment 110 is shown in FIG. 6, wherein a front fork receiver 112 is supported by an upright strut 114, which is in turn rigidly mounted to a flange 116 of a mounting plate 118. A set of four flex members 120 (also referred to as resiliently deformable elements) support mounting plate 118 above bottom plate 122, which is rigidly attached to cross-beam 124 (parallel to cross-beam 16 of embodiment 10). Similar to embodiment 10, cross-beam 124 is slidingly mounted in a base 125, by way of a pair of slots 126 (FIG. 2), with the movement of cross-beam 124 being resisted by a rubber band 128. In a preferred embodiment, flex members 120 are vibration-dampening sandwich mounts, available from McMaster-Carr (which maintains a website at www.mcmaster.com) under part number 93945K36. These parts are 1 inch high and 1 inch in diameter and are made of black neoprene rubber. The shear capacity per mount is 8 lbs, and the deflection at shear capacity is 0.1 inch. The mount type is threaded stud and threaded insert.

(14) Flex members 120 provide sufficient resisted movement of fork receiver 112, by way of strut 114, to provide a natural feel to a rider on a bicycle that has its front fork mounted on receiver 112.

(15) The disclosed embodiments are illustrative, not restrictive. While specific configurations of the bicycle trainer portion have been described, it is understood that the present invention can be applied to a wide variety of training devices. There are many alternative ways of implementing the invention.