BG988U1 - Two-area transversely bulging bike seat - Google Patents

Abstract

The seat comprises two halves arranged in a mirror-like fashion with respect to the longitudinal axis of the bike and consisting of rear seat surfaces (A1 and A2) hinged to front seat surfaces (B1 and B2) through a spatial link mechanism.

Description

BACKGROUND OF THE INVENTION

Bicycle seats consisting of two halves, mirrored to the longitudinal axis in the direction of movement of the bicycle, are known, and in some models these two halves are divided into front and rear saddle surfaces, pivotally connected, by separate axles, with allowing the front saddles to rotate from the rear ones (US 603,734). In some models, there is a pivot axle common to both halves, perpendicular to the longitudinal axis in the direction of cycling in a horizontal plane, fixed to the frame of the bicycle, which pivots between the front and rear saddle surfaces ( WO 1999/042353 and WO 2001/094192). In other models, there is a connection between the front saddle surfaces, which creates a condition for alternative rotation relative to one another, this connection being made by means of a hinge mechanism or other suitable means (US 4,089,559).

Explanations of the annexed figures

Figure 1 is an isometric view of a two-panel transverse convex bicycle seat;

FIG. 2 is a side view relative to FIG. 1 no rear saddle A1 is shown;

Figure 3 is an arrangement of wings 1a and 1b with respect to the rails R1 and R2;

Figure 4 is an arrangement of the wings relative to the rear saddle surfaces and a tensioner G;

Figure 5 is an element of a pivot mechanism between the front saddle faces B1 and B2 with a rocker 6;

Figure 6 shows the tuning unit of the rocker 6 and the axis of the rocker 7;

Figure 7 - Tensioner of elastic elements; 8 is an isometric view of the seat.

An example of a utility model

Two-plane transversely convex bicycle seat S comprising two mirror-folded half-lengths S1 and S2 relative to the longitudinal axis of the bicycle, spaced apart, with convex zones extending transversely to the longitudinal axis of the bicycle. Behind the convex zones are the rear saddle faces A1 and A2 and the front saddle faces B1 and B2 are formed in front of the convex zones. The front ends of the rear saddle surfaces A1 and A2 and the rear ends of the front saddle surfaces B1 and B2 are connected by the N1 and N2 axes, thus forming convex zones between them. In addition, the seat comprises a seat frame F consisting of two rails R1 and R2 located along the longitudinal axis in the direction of cycling of the bicycle in a horizontal plane so that both rails R1 and R2 can be secured to a conventional bracket C for bicycle. A fixed axis of the frame L is connected to both rails R1 and R2, perpendicular to the rails in the plane defined by them. The axis of the frame L extends transversely to the direction of travel of the bicycle in the plane defined by the rails or in a plane parallel to it.

According to the utility model, in the two-plane transversely convex bicycle seat (Fig. 1), the front edges of wings 1a and 1b are connected pivotally to the rails in the plane defined by them, perpendicular to the rails in the plane defined by them. The rear edges of the wings 1a and lb are pivotally connected to the rear edges of the rear saddle faces A1 and A2 by axes 2a and 2b (Fig. 2), these axes 2a and 2b being parallel to the axis of the frame L. Between the axes 2a and 2b. 2b and seat frame F are resilient elements 3a and 3b. The front ends of the rear saddle faces A1 and A2 and the rear ends of the front saddle surfaces B1 and B2 are pivotally connected by axes N1 and N2, which are located parallel to the axis of the frame L and parallel to the axes 2a and 2b. Elastic members 4a and 4b are located between the wings 1a and lb and the rear saddle faces A1 and A2. The front ends of the front saddle faces B1 and B2 are pivotally connected to bars 5a and 5b by means of which allow a kinematic bond to be created which allows more than one degree of freedom of rotation between them. Rods 5a

988 I and 5b are connected to the outer ends of the rocker 6 by means of which a kinematic connection can be made with three degrees of freedom of rotation between the bars 5a and 5b and the rocker 6. The rocker 6 at its center is pivotally connected to an axis of the rocker 7 which is fixedly fixed to a point which falls on a line lying midway between the rails R1 and R2. Cell 6 is located in a plane parallel to the plane defined by the rails R1 and R2. The axis of its rocker is orthogonal to the plane defined by the rails R1 and R2. The wings 1ai and lb, the rear saddle faces A1 and A2 and the front saddle faces B1 and B2 are able to rotate in a portion of an arc of a circle arranged in a plane that is vertical to the bicycle and located along its longitudinal axis. The rocker 6 is able to rotate a portion of an arc of a circle arranged in a plane parallel to the plane defined by the rails R1 and R2. The rotation of the wings 1a and lb about the axis of the frame L, the rotation of the rear saddle faces A1 and A2 relative to the wings 1a and lb and the rotation of the rocker 6 about the axis of the rocker 7 are limited by suitable means, variants of which are described as follows.

The wings 1a and lb are pivotally connected to the axis of the frame L, with grooves incised at the inner ends of the hinge joints of wings 1a and 1b, and the role of the tooth is fulfilled by the rails of the frame R1 and R2 so that the rotation of the wings 1a and lb around the axis L is restricted by a soil and tooth link (Fig. 3). The rotation of the rear saddle faces A1 and A2 with respect to the wings 1a and lb is limited by the beveled surfaces located at the rear edges of the wings 1a and 1b and the rear saddle faces A1 and A2 which allow the angle α to be rotated (Fig. 4).

The connection between the front saddle faces B1 and B2 and the bars 5a and 5b (Fig. 5) is made by the axes 8a and 8b, attached to the undersides of the front saddle faces B1 and B2 and pivotally connected to the elements 9a and 9b, 10a and 10b, which in turn are pivotally connected to the bars 5a and 5b. The connection between the bars 5a and 5b and the ends of the rocker 6 is made by elements 11a and 1lb.

The attachment of the rocker 6 to the axis of the rocker 7 as well as the location of the rocker axis which falls midway between the rails of the frame R1 and R2 are determined by the adjustment assembly shown in FIG. 6. The adjustment assembly consists of a sled on the axis of the rocker arm 12, a fixing sled consisting of an upper shell 13b and a lower shell 13a, front arms 14a and 14b having the same length, rear arms 15a and 15b having the same length and eccentric clamp 17. The rear ends of the rear arms 15a and 15b are connected pivotally to the axis of the rocker arm 7, the front ends of the front arms 14a and 14b are pivotally connected to the stem of the eccentric clamp 17, the stem of the eccentric clamp 17 passes through openings. located in the centers of the upper 1H B and the lower shell 1b of the mounting sleeve such that the stem of the eccentric clamp 17 is orthogonal to the plane defined by the rails of the frame R1 and R2. The rear ends of the front arms 14a and 14b and the front ends of the rear arms 15a and 15b are pivotally connected by axes 16a and 16b.

The elastic members 3a and 3b are secured at their rear ends to the axes 2a and 2b and at the front ends to the frame F by means of a tensioner of the elastic members G in FIG. 4, which consists of a handle 18 with a thread in the front (Fig. 7), so that it forms a screw pair with the sleeve of the tensioner 19 located in the bed 20, which in turn is attached to the axis L, respectively to the rods R1 and R2 .

The two-panel transversely protruding bicycle seat is secured to a conventional bicycle bracket and used as well as a conventional bicycle saddle.

Claims (1)

Claims 1. Two-plane transversely convex bicycle seat (S) comprising two mirror-like halves of the bicycle halves (S1) and (S2), spaced apart, with convex zones extending transversely to the longitudinal axis of the bicycle, such as rear saddle surfaces (A1) and (A2) are formed behind the convex zones, and front saddle surfaces (B1) and (B2) are formed in front of the convex zones, with the front edges of the rear saddle surfaces (A1) and (A2) and the rear the ends of the front saddle surfaces (Bl) and (B2) are connected by axes (N1) and (N2), n and thereby forming the convex areas between them; seat frame (F) consisting of rails of frame (R1) and (R2), which rails are arranged in the direction of movement of the bicycle with the possibility of being fixed to a conventional bracket (C) for securing a bicycle saddle to the frame (D) the bicycle; the transverse axis of the seat frame (L) fixed to the rails of the seat frame (R1) and (R2), with the two sides of the transverse axis (L) of the seat frame (F) extending transversely to the rails (R1) and (R2) of the seat frame (F) in a plane in which the rails (R1) and (R2) lie or are parallel to it, characterized in that it includes wings (1a) and (lb) which in the front their ends are hinged to both sides of the transverse axis of the frame (L); axes (2a) and (2b) through which the rear edges of the wings (1a) and (lb) and the rear edges of the rear saddle surfaces (A1) and (A2) are hinged, such as between the axes (2a) and (2b) and the seat frame (F) are provided with elastic members (3a) and (3b) that are secured to the seat frame (F) by suitable means; resilient members (4a) and (4b) are located between the wings (1a) and (lb) and the rear saddle surfaces (A1) and (A2); bars (5a) and (5b) pivotally connected to the front edges of the front saddle surfaces (B1) and (B2) by suitable means to allow kinematic bonding with more than one degree of freedom of rotation; a rocker (6) arranged in a plane parallel to the plane defined by the rails of the frame, the outer ends of the rocker (6) being connected to the rear ends of the bars (5a) and (5b) by suitable means, enabling kinematic connection with three degrees of freedom of rotation of the bars (5a) and (5b) with respect to the rocker (6); an axis of the rocker (7) to which the center of the rocker (6) is pivotally attached, which axis of the rocker (7) is orthogonal to the plane defined by the rails of the frame (R1) and (R2), such as that axis of the rocker (7) is secured by suitable means at a point on the center line between the rails of the frame (R1) and (R2), enabling the rods (5a) and (5b) to be connected to the rocker arm (6) together with the axis of the rocker (7) to form a spatial pivot mechanism.