GB2147656A

GB2147656A - Bearing device for a bicycle side stand

Info

Publication number: GB2147656A
Application number: GB08419700A
Authority: GB
Inventors: Sven-Uno Stensson
Original assignee: Monark AB
Current assignee: Monark AB
Priority date: 1983-10-03
Filing date: 1984-08-02
Publication date: 1985-05-15
Also published as: NO156858B; FI843090A0; NO156858C; SE8305415D0; DK435484D0; SE8305415L; DK435484A; DK159962B; FI843090A; NO843172L; SE439141B; GB2147656B; DK159962C; FI78033B; DE3434789A1; FI78033C; GB8419700D0

Abstract

The invention relates to a bearing device for a bicycle side stand comprising an outer sleeve 1 in which the shaft portion 4 of the supporting leg is inserted and carried, at the end of the outer sleeve 1 from which the supporting leg projects, this sleeve 1 is cylindrical and is provided with inwardly directed supporting lugs 3, and located in this end, inside the outer sleeve 1, is a bushing 9 for the shaft 4 of the supporting leg. The bushing 9 is provided at its outer periphery with axially extending grooves 10 corresponding to the supporting lugs 3. By this arrangement the bushing can be inserted from the outside into the outer sleeve 1 past the supporting lugs 3. On its outwardly directed side the bushing 9 is provided with recesses 11 corresponding to the supporting lugs 3 and located to correspond to the position of these lugs. After insertion of the bushing 9 into the outer sleeve 1 and turning it through an angle, the supporting lugs 3 are brought into engagement with the recesses 11. The supporting lugs 3 now secure the bushing 9 in a locked position in which this bushing 9 in turn keeps the parts belonging to the bearing device axially in position. <IMAGE>

Description

SPECIFICATION Bearing device for a bicycle side stand The present invention relates to a bearing device for a bicycle support leg attached to the bicycle to serve as a side stand, in which the supporting leg with its shaft is pivoted in the bearing device connected to a lower part of the bicycle so that the leg can be moved between an inactive rest position and an active supporting position.

According to the present invention there is provided a bearing device for a bicycle support leg which in use is attached to the bicycle to serve as a side stand, said supporting leg having a shaft portion rotatably mounted in the bearing device which can be connected to a lower part of the bicycle so that the leg can be moved between an inoperative position and an operative supporting position, said bearing device having an outer sleeve which over a major part of its length is cylindrical and the end from which the support leg extends is provided with circumferentially spaced inwardly directed supporting lugs, a bushing for the shaft portion of the support leg being received in the outer sleeve, said bushing being provided on its outer periphery with axially extending grooves located to correspond with the position of the supporting lugs in order to enable the bushing to be inserted into the outer sleeve from said end by aligning the grooves with the lugs, and being provided on its outwardly directed end with recesses circumferentially spaced from the grooves and corresponding with the spacing of the lugs so that after insertion of the bushing into the outer sleeve the bushing can be rotated to engage the recesses with the lugs to hold the bushing against rotation.

The bearing device of the invention is easy to assemble and also easy to disassemble in such cases when a part of the device needs replacement.

An embodiment of the invention will now be described, by way of an example, with reference to the accompanying drawings, in which: Figure 1 shows a side view partly in section of a bearing device according to the present invention; Figure 2 is a view on one end of the bearing device shown in Figure 1; and Figure 3 is a view on the other end of the bearing device shown in Figure 1.

In the drawings, 1 is an outer sleeve which over a major part of its length is cylindrically shaped.

Thus, according to Figure 1, this refers to the lefthand part of the sleeve 1. At its right-hand end, as viewed in Figure 1, the sleeve 1 has been shaped as a square tube. At this right-hand end the sleeve 1 is provided with four inwardly directed supporting lugs 2. At its left-hand end the sleeve 1 is provided with two inwardly directed supporting lugs 3.

The supporting leg of the bicycle stand is now shown in the drawing, but the part of it which constitutes its shaft portion has been shown at 4. This shaft 4 is provided with a transverse pin 5 protruding outside the periphery of the shaft 4.

In the bottom end of the sleeve 1, this is its right-hand end as viewed in Figure 1,there is inserted an inner bearing part 6 having a square section so as to be non-rotatably fitted in the square right-hand end of the outer sleeve 1. This bearing part 6, in which the end of the shaft is inserted, has directed to the right, as viewed in Figure 1, a bottom end resting against the supporting lugs 2.

The other end of the bearing shaft 6, directed to the left, as viewed in Figure 1, is provided with four recesses forming receiving places for the pin 5 and arranged in two diametrically opposed pairs, so that the pin 5 is located in the one pair of recesses when the supporting leg is in its inactive rest position, and is located in the other pair of recesses when the supporting leg is in its active supporting position. A spring 7 acts against a washer 8 to urge the pin 5 into the recesses just mentioned.

At its other end the spring 7 lies against a bushing 9, which in turn is supported outwardly by the two supporting lugs 3 of the outer sleeve 1. This bushing 9 is, at its periphery, provided with two axially extending grooves 10, corresponding to the two supporting lugs 3 and so located that, when inserting the bushing 9 into the sleeve 1, the grooves 10 are aligned with the lugs 3 and can, from the outside, be pressed inwardly past the supporting lugs 3 and into the outer sleeve 1 against the action of the spring 7. The bushing 9 is then rotated so that two recesses 11 provided on the end of the bushing 9 will be located opposite to the supporting lugs 3. These will then engage the recesses 11 and lock the bushing 9 against unintended rotation.At the same time, the bushing 9 is also locked axially outwards by the supporting lugs 3 and further keeps the parts of the device axially in place.

Preferably the bushing 9 is, on its end exposed outwardly, also provided with two radially located grooves 12, by means of which it is possible to use a suitable tool to turn the bushing 9 between its free and its locked positions.

The outer sleeve 1 can be permanently attached to a suitable lower frame part of the bicycle, for instance by welding. It is also possible by means of a bolt, cross pieces and a nut to detachably mount the bearing device and its supporting leg to the bicycle.

1. A bearing device for a bicycle support leg which in use is attached to the bicycle to serve as a side stand, said supporting leg having a shaft portion rotatably mounted in the bearing device which can be connected to a lower part of the bicycle so that the leg can be moved between an inoperative position and an operative supporting position, said bearing device having an outer sleeve which over a major part of its length is cylindrical and the end from which the support leg extends is provided with circumferentially spaced inwardly directed supporting lugs, a bushing for the shaft portion of the support leg being received

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Bearing device for a bicycle side stand The present invention relates to a bearing device for a bicycle support leg attached to the bicycle to serve as a side stand, in which the supporting leg with its shaft is pivoted in the bearing device connected to a lower part of the bicycle so that the leg can be moved between an inactive rest position and an active supporting position. According to the present invention there is provided a bearing device for a bicycle support leg which in use is attached to the bicycle to serve as a side stand, said supporting leg having a shaft portion rotatably mounted in the bearing device which can be connected to a lower part of the bicycle so that the leg can be moved between an inoperative position and an operative supporting position, said bearing device having an outer sleeve which over a major part of its length is cylindrical and the end from which the support leg extends is provided with circumferentially spaced inwardly directed supporting lugs, a bushing for the shaft portion of the support leg being received in the outer sleeve, said bushing being provided on its outer periphery with axially extending grooves located to correspond with the position of the supporting lugs in order to enable the bushing to be inserted into the outer sleeve from said end by aligning the grooves with the lugs, and being provided on its outwardly directed end with recesses circumferentially spaced from the grooves and corresponding with the spacing of the lugs so that after insertion of the bushing into the outer sleeve the bushing can be rotated to engage the recesses with the lugs to hold the bushing against rotation. The bearing device of the invention is easy to assemble and also easy to disassemble in such cases when a part of the device needs replacement. An embodiment of the invention will now be described, by way of an example, with reference to the accompanying drawings, in which: Figure 1 shows a side view partly in section of a bearing device according to the present invention; Figure 2 is a view on one end of the bearing device shown in Figure 1; and Figure 3 is a view on the other end of the bearing device shown in Figure 1. In the drawings, 1 is an outer sleeve which over a major part of its length is cylindrically shaped. Thus, according to Figure 1, this refers to the lefthand part of the sleeve 1. At its right-hand end, as viewed in Figure 1, the sleeve 1 has been shaped as a square tube. At this right-hand end the sleeve 1 is provided with four inwardly directed supporting lugs 2. At its left-hand end the sleeve 1 is provided with two inwardly directed supporting lugs 3. The supporting leg of the bicycle stand is now shown in the drawing, but the part of it which constitutes its shaft portion has been shown at 4. This shaft 4 is provided with a transverse pin 5 protruding outside the periphery of the shaft 4. In the bottom end of the sleeve 1, this is its right-hand end as viewed in Figure 1,there is inserted an inner bearing part 6 having a square section so as to be non-rotatably fitted in the square right-hand end of the outer sleeve 1. This bearing part 6, in which the end of the shaft is inserted, has directed to the right, as viewed in Figure 1, a bottom end resting against the supporting lugs 2. The other end of the bearing shaft 6, directed to the left, as viewed in Figure 1, is provided with four recesses forming receiving places for the pin 5 and arranged in two diametrically opposed pairs, so that the pin 5 is located in the one pair of recesses when the supporting leg is in its inactive rest position, and is located in the other pair of recesses when the supporting leg is in its active supporting position. A spring 7 acts against a washer 8 to urge the pin 5 into the recesses just mentioned. At its other end the spring 7 lies against a bushing 9, which in turn is supported outwardly by the two supporting lugs 3 of the outer sleeve 1. This bushing 9 is, at its periphery, provided with two axially extending grooves 10, corresponding to the two supporting lugs 3 and so located that, when inserting the bushing 9 into the sleeve 1, the grooves 10 are aligned with the lugs 3 and can, from the outside, be pressed inwardly past the supporting lugs 3 and into the outer sleeve 1 against the action of the spring 7. The bushing 9 is then rotated so that two recesses 11 provided on the end of the bushing 9 will be located opposite to the supporting lugs 3. These will then engage the recesses 11 and lock the bushing 9 against unintended rotation.At the same time, the bushing 9 is also locked axially outwards by the supporting lugs 3 and further keeps the parts of the device axially in place. Preferably the bushing 9 is, on its end exposed outwardly, also provided with two radially located grooves 12, by means of which it is possible to use a suitable tool to turn the bushing 9 between its free and its locked positions. The outer sleeve 1 can be permanently attached to a suitable lower frame part of the bicycle, for instance by welding. It is also possible by means of a bolt, cross pieces and a nut to detachably mount the bearing device and its supporting leg to the bicycle. CLAIMS

1. A bearing device for a bicycle support leg which in use is attached to the bicycle to serve as a side stand, said supporting leg having a shaft portion rotatably mounted in the bearing device which can be connected to a lower part of the bicycle so that the leg can be moved between an inoperative position and an operative supporting position, said bearing device having an outer sleeve which over a major part of its length is cylindrical and the end from which the support leg extends is provided with circumferentially spaced inwardly directed supporting lugs, a bushing for the shaft portion of the support leg being received in the outer sleeve, said bushing being provided on its outer periphery with axially extending grooves located to correspond with the position of the supporting lugs in order to enable the bushing to be inserted into the outer sleeve from said end by aligning the grooves with the lugs, and being provided on its outwardly directed end with recesses circumferentially spaced from the grooves and corresponding with the spacing of the lugs so that after insertion of the bushing into the outer sleeve the bushing can be rotated to engage the recesses with the lugs to hold the bushing against rotation.

2. A bearing device as claimed in Claim 1, in which the outwardly directed end of the bushing is provided with means engageable by a tool for inserting and rotating the bushing.

3. A bearing device as claimed in Claim 2, in which said means comprise radial grooves in said end bushing.

4. A bearing device for a bicycle support leg, substantially as hereinbefore described with reference to and illustrated in the accompanying drawings.

5. A bicycle provided with a support leg mounted in a bearing device as claimed in any preceding claim.