Backrest having a holder, saddle having a backrest, and device having a saddle

Abstract

The invention relates to a backrest for devices driven by means of pedals comprising a holder for fastening to the device and a contact surface for supporting a person operating the device, wherein the contact surface has a base body, on which at least one spherical segment-shaped contact surface, a roller segment-shaped contact surface arranged parallel to the pedals when in use, and/or a contact surface, which can be moved relative to the base body, is arranged. The invention furthermore relates to a saddle comprising a backrest, in the case of which the backrest is arranged in an articulated manner relative to the saddle, preferably so as to lock in place, in order to form an essentially horizontal saddle extension.

Claims

1. A backrest for a device driven by pedals comprising a holder for fastening to the device; and at least first and second contact surfaces spaced apart by a distance for supporting a person operating the device; wherein each of the first and second contact surfaces has a surface of a sphere or a roller and is rotatably mounted on a support for movement around a horizontal axis at a central portion of each of the first and second contact surfaces; and wherein the first and second contact surfaces are formed elastically.

2. The backrest according to claim 1, wherein the distance can be set so as to be capable of fixing the first and second contact surfaces relative to one another.

3. The backrest according to claim 1, wherein the first and second contact surfaces are arranged on both sides of the holder.

4. The backrest according to claim 1, wherein the support has at least two lever arms, which are connected to one another so as to be capable of being set via a joint.

5. The backrest according to claim 1, wherein the support has at least two lever arms and the length of at least one of the lever arms can be set.

6. The backrest according to claim 1, wherein the support has a saddle fastening means for fastening to a saddle.

7. The backrest according to claim 6, wherein the support has a saddle post fastening means for fastening to a saddle post.

8. The backrest according to claim 7, wherein a connecting rod is connected in an articulated manner to the saddle fastening means and the saddle post fastening means.

9. The backrest according to claim 1, further comprising third and fourth contact surfaces spaced apart by the distance for supporting the person operating the device, and a further holder between the first and second contact surfaces and between the third and fourth contact surfaces.

10. The backrest according to claim 1, further comprising a saddle cover and/or a bicycle lock.

11. The backrest according to claim 1, further comprising a bicycle light.

12. The backrest according to claim 1, further comprising a transmitter.

13. The backrest according to claim 1, further comprising a sensor and a pressure cylinder for changing the position of the first and second contact surfaces in order to thus vary the contact pressure of the first and second contact surfaces on the back of a user.

14. An assembly comprising a saddle and the backrest according to claim 1, wherein the backrest is arranged in an articulated manner relative to the saddle in order to form an essentially horizontal saddle extension.

15. A device comprising the assembly according to claim 14.

16. A backrest for a device driven by pedals comprising a holder for fastening to the device; and at least first and second contact surfaces spaced apart by a distance for supporting a person operating the device; wherein each of the first and second contact surfaces has a surface of a sphere or a roller and is rotatably mounted on a support for movement around a horizontal axis at a central portion of each of the first and second contact surfaces; and wherein the first and second contact surfaces are mounted elastically relative to the support.

17. A backrest for a device driven by pedals comprising a holder for fastening to the device; and at least first, second, third, and fourth contact surfaces spaced apart by a distance for supporting a person operating the device; wherein each of the first, second, third, and fourth contact surfaces has a surface of a sphere or a roller and is rotatably mounted on a support for movement around a horizontal axis at a central portion of each of the first, second, third, and fourth contact surfaces; and wherein the first, second, third, and fourth contact surfaces are elastically mounted relative to the support.

Description

(1) Advantageous embodiment variations are described in the drawing and will be explained in more detail below, in which

(2) FIG. 1 shows a view diagonally from behind onto a backrest comprising two spherical segment-shaped contact surfaces,

(3) FIG. 2 shows a lateral view of the backrest shown in FIG. 1,

(4) FIG. 3 shows a view from behind onto the backrest shown in FIGS. 1 and 2,

(5) FIG. 4 shows a lateral view of a saddle post fastening comprising saddle fastening,

(6) FIG. 5 shows a lateral view of a backrest comprising holder,

(7) FIG. 6 shows a view of a backrest comprising four spherical segment-shaped contact surfaces,

(8) FIG. 7 shows a view of a backrest comprising six spherical segment-shaped contact surfaces,

(9) FIG. 8 shows a backrest comprising four spheres,

(10) FIG. 9 shows a backrest comprising two rollers,

(11) FIG. 10 shows a backrest comprising horizontally mounted spheres, and

(12) FIG. 11 shows a backrest comprising a pressure cylinder.

(13) The backrest 1 shown in FIG. 1 is attached to a device 2, which is driven by means of pedals, of which only the saddle post 3 and the saddle 4 are shown.

(14) The backrest 1 has a holder 5 for fastening to the device 2 and a contact surface 6 for supporting a person (not shown) operating the device. This person operating the device sits on the saddle and the contact surface 6 is set in such a way that it abuts against the back of the person.

(15) This contact surface 6 has a base body 7, to which two spheres 8 and 9 are fastened, which each have a spherical segment-shaped contact surface 10, 11. As shown in FIG. 2, the spheres 8 and 9 can be retained in a cage 12 or can be arranged therein so as to be rotatable relative to the cage.

(16) The distance of the spheres 8 and 9 and thus also of the contact surfaces 10 and 11 relative to one another can be individually set by means of a screwed or latching mechanism 13, as shown in FIG. 3. In addition, the distance of the spheres 8 and 9 and thus of the contact surfaces 10 and 11 relative to the saddle 4 and relative to one another can also be set by means of the mechanism 13. The connection of the cage 12 to the upper lever arm 14 or the cage 12 itself can be formed in such a way that the contact surfaces 10 and 11, which are arranged on both sides of the holder 5, are elastically mounted relative to the base body 7. In addition, the contact surfaces 10 and 11 or the spheres 8 and 9 can be formed elastically. Together, several contact surfaces 10 and 11 can also be elastically mounted relative to the base body 7, for example by means of a flexible formation of the mechanism 13.

(17) The base body 7 consists of an upper lever arm 14 and a lower lever arm 15, which are connected in a movable and fixable manner so as to be capable of being set via a joint 16.

(18) The lower lever arm 15 is fastened to a saddle fastening means 17 in such a way that it can be pulled out of the saddle fastening means 17 to the rear and can be pushed into the saddle fastening means 17, in order to adjust the effective lever arm of the lower lever 15. For this purpose, the lower lever arm 15 can be fixed in its position by means of the catch 18.

(19) The saddle fastening means 17 and the saddle post fastening means 19 are connected to one another via a lever 20, which is articulated to the saddle post fastening means 19 as well as to the saddle fastening means 17 by means of a joint 21 or 22, respectively.

(20) FIG. 5 shows, how a bottle 23 is held in a holder 24 between the contact surfaces 10 and 11. This holder could also be formed to hold a box, as rack or for holding a rear light (not shown).

(21) FIGS. 6 and 7 show that instead of two contact surfaces, which are arranged next to one another, several contact surfaces can also be arranged one on top of the other, in particular as square or rectangle. For instance, FIG. 6 shows contact surfaces 25, 26, 27, and 28, which are formed like the contact surfaces 10 and 11, and which can be individually shifted and positioned in square arrangement, but via the mechanisms 29 and 30.

(22) The contact surfaces 31 to 36 shown in FIG. 7 can thus also be individually set and fixed by means of the mechanisms 37 to 39.

(23) FIG. 8 shows spherical contact surfaces 40 to 43, which are mounted so as to be capable of rotating around the axes 44 and 45.

(24) Instead of spheres, rollers 47 and 48 can also be arranged one on top of the other as shown in FIG. 9, which are preferably arranged so as to be capable of rotating around an axis 49 or 50, respectively, mounted on the base body 51.

(25) FIG. 10 shows a special embodiment of a backrest 60 comprising spheres 64, 65, which are mounted in a respective ring 61, 62 around an essentially horizontal axis 63. Said spheres are held on two parallel rods 66, 67, which provide for a limited rotation around a vertical axis and for a limited pivoting around a horizontal axis.

(26) While FIG. 10 shows an exemplary embodiment for a passive yielding of the backrest 60 by means of the design and the material selection of the base body, FIG. 11 shows an exemplary embodiment of a backrest 70 for an adjustment of the angular position of the contact surface of the two spheres 71 and 72 due to a deformation of the base body 73 by means of a pressure cylinder 74. In the exemplary embodiment, this pressure cylinder 74 is arranged between a lower lever arm 75 and an upper lever arm 76 in order to change the angle, at which the lever arms 75 and 76 are arranged relative to one another. The pressure cylinder can act passively as gas pressure spring or actively pneumatically or hydraulically according to a controller (not shown).

(27) Pressure sensors (not shown) arranged in the spheres 71, 72 can absorb a contact pressure, which the user applies to the contact surfaces, and can transfer this pressure via a sender (not shown) to a receiver. However, the contact pressure can also be used to set the pressure on the pressure cylinder 74 in a regulated or controlled manner.

(28) Depending on the field of application, this makes it possible to use individually formed and individually mounted and positioned contact surfaces, so as to use the backrest to absorb a pressure applied by the user of the device 2 driven by means of the pedals.