JPS59140191A - Multistage variable speed hub for two-wheel barrow - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-speed hub for two-wheeled vehicles, particularly bicycles.

In a multi-speed bicycle hub known from DE 29 40 841 A1, a drive body with a plurality of sprockets is rotatably supported on the hub axle at a first bearing location. There is. spoke 7
The hub sleeve with a flange is rotatably mounted on the drive body at a second bearing location and on the hub axle at a sixth bearing location. The hub sleeve and the drive body cover a planetary gear transmission, and the planet W (, 1t f section device includes a sun gear that is non-rotatably connected to the pub shaft and has external teeth, and a sun gear that rotates with the drive body. a hollow gear fixedly coupled and a planetary southeast holder having a plurality of planet gears rotatably supported on the holder. The body and hub sleeve,
It has a pawl tooth concentric with the hub axle, and the pawl tooth has a
A locking pawl, which is mounted on a pawl holder that is movable in the axial direction, is preloaded into engagement by a spring spring 1''4. By means of the control flank provided on the planetary gear holder, the two pawls of the pawl locking mechanism on the planetary gear holder side can be cut to the inactive position by moving the pawl holder in the l1fl+ direction. . In this way, the hub sleeve can be connected to the drive body or the planetary gear carrier.

The pawl holder of this known multi-speed hub is switched by a tension mechanism guided on the hub axle, and this gear control type requires a relatively complex configuration of the hub axle and the two pawl locking mechanisms. I have to. Even more,
Assembly of this type of hub is also relatively cumbersome.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to simplify the structure of the hub and, in particular, of the hub parts necessary for gear shifting, and to simplify the assembly of the hub.

In order to solve this problem, in the configuration of the present invention, a driving body having a sprocket is rotatably supported on the hub axle or on a part rigidly connected to the hub axle at the first 1fQl+ receiving location. On the other hand, the hub sleeve is supported on the drive body at the second bearing location and on the hub axle at the sixth bearing location, and the transmission member of the planetary gear transmission is connected between the drive body and the hub sleeve by a coupling mechanism. In order to control the coupling mechanism, a switching member, which is axially movable via an operating device manually operated from the outside of the hub, is provided, in which case the switching The member is the sixth bearing in the first bearing @ one place when viewed in the axial direction.
It is connected to the actuating device via a thrust bearing point which is arranged on the side opposite to the bearing point of the drive body and is operatively connected to the coupling mechanism through at least one recessed reed of the drive body. The thrust bearing location allows relative rotation between the switching member and the actuating device. At such bearing locations,
The standard components for controlling planetary gear transmission equipment are:
It is arranged 6 on the axially outer side of the bearing location where the hub sleeve is supported on the hub +1111+. Therefore, these components can be assembled together after assembling the planetary gear compartment fit, hub sleeve, drive body, and hub axle, and as a result, assembly of the multi-speed transmission hub is facilitated. In addition to this, a relatively simply constructed solid shaft can be used for the hub.

According to an advantageous embodiment of the invention, the switching part directly controls the locking pawl of the pawl locking mechanism between the drive body and the hub sleeve. In this case, the detent pawl is arranged on the drive body, so that it can be switched by an axial movement of a preferably ring-shaped switching element which rotates together with the drive body.

In a further advantageous embodiment, the actuating device for the axial movement of the switching element has two push rings in contact with one another with push surfaces having complementary shapes to each other, The axially outer push ring, which is orally mounted on the hub axle, can be rotated by hand, for example via a cable, and the axially inner push ring acts on the switching element. The push ring can be moved in the axial direction. In this case, the inner push ring is mounted non-rotatably but axially movably on the hub axle or on a part rigidly connected to the hub axle.

The invention will now be described in detail with reference to the drawings.

A two-speed bicycle hub has a hub shaft 1 made of a solid material without a through hole in the axial direction, and a first ball bearing 3 is connected to the hub shaft 1. I+I+ 1
A drive body 5 surrounding the is rotatably mounted. The hub sleeve 7, which surrounds the hub axle 1 and the drive body 5 in one direction, is connected to the drive body 5 via a second ball bearing 9 in its one end region and a sixth ball bearing in its other end region. The shaft is rotatably supported on shaft 1 via 11.
ing. Ball bearing 9 includes ball bearing 3 and ball bearing 11 when viewed in the axial direction.
is located between. On the side of the ball bearing 3 opposite to the ball bearing 9, the drive body 5 has a tubular extension 13 extending in the axial direction. Two radially extending slit-shaped recesses 15 are provided, which are located in the zj direction and extend in the end face of the tubular extension 13 in an oval manner. A sprocket 21 is arranged on the tubular extension 13 and is clamped between an axial shoulder 17 and a fixing member 19 . This rocket 21 is best seen in FIG. r,
The sprocket 5 has two protrusions 23 located diametrically opposed to each other on its inner periphery, and both protrusions 23 are engaged with the notches 15 of the drive body 5, so that the sprocket 21 can be connected to the drive body. 5 and is held unrotatable. The knob sleeve 7 is preferably a light metal casting and has spoke flanges 25.degree. 27 in its end region. The spoke flanges 25 on the driving body side are cast integrally with the hub sleeve 7, whereas the spoke flanges 27 are fitted afterwards.

The hub axle 1 has a substantially smooth surface, is rounded, has a substantially constant diameter, and has an external thread 29, 31 in each end region. A mutually extending bearing cone 33.35 of a painter's bearing 3.11 is screwed into the two external threads 29.31, so that the drive body 5 and, via the ball bearing 9, a radius The nozzle sleeper 7, which is supported by the drive body 9 in both the direction and the axial direction, is fixed to the hub axle 1 in the axial direction. hub sleeve 7
The outer portion of the driver 5 has a significantly larger diameter than the portion adjacent to the ball bearing 11. ball 1110
The bridge 9 works to increase the diameter of the /1 psleep 7 (shoulder 1
7 and has a bearing shell 3.gamma., which is fixedly pressed into the hub sleeve .gamma. and consists of, for example, a sheet of copper or the like. A ball bearing 1' provided at the end of the hub sleeve opposite to the drive body 5
1 is a bearing shell/I/39 which is unrotatably pressed into the hub sleeve 7 and is made of thin steel plate or the like.
This bearing shell 390 has a radially outwardly projecting collar 31 which projects radially beyond the axial end face of the hub sleeve 7. An annular dust cover 43 made of plastic or plastic, which seals the ball bearing 11 outwardly, is fixed to this projecting collar 41. Similarly, the annular dust cover 45 protects the hub sleeve 7! The annular gap 1 between the moving body side axial end of the 51 sprocket and the sprocket 1-21 is covered. The retaining nut 47.49 screwed into the external thread 29.31 of the hub axle 1 is connected to the bearing cone 33.3.
The hub sleeve 7 and the drive body 5, which ensure an adjustment of 5, cover a planetary gear transmission, designated as a whole by 51. This planetary gear transmission' device t51 has the sun gear 53 placed in a drive body side bearing cone part protruding between the ball bearings 3 and 11 when viewed in the axial direction, and facing the sun gear 53 in the radial direction. The hollow gear 55 located in the driving body 5
and has a planetary gear holder 59 non-rotatably supported between both bearing cones 33, 35 on the bearing surface 57 of the hub ill+1, and this planetary gear holder 59,
A support pin 61 protrudes in the axial direction of the hub axle 1 from the side of the polishing driver 5 in the axial direction. The support pin 61 has a planetary gear 6 meshing with the sun gear 53 and the hollow gear 55.
3 is rotatably supported. For example, the annular cage 65 made of plastic holds the planetary gear 63 in the planetary gear holder 59.
It is held in

A first pawl locking mechanism 67 operates between the planetary gear holder 59 and the hub sleeve 7. This claw locking mechanism 67 is
Claw holder 69 unrotatably pushed into hub sleeve 7
On this pawl holder 69, a small number (one, but preferably a plurality of locking pawls 71) are supported so as to be pivotable about a pivot axis that is parallel to the hub axle 1. 1" - the pawl 71 is engaged in a radially opposite pawl tooth 73 of the planetary gear holder 59 and is elastically preloaded in the usual manner by a ring spring 75. The second pawl locking mechanism 77 serves to connect the hub sleeve 7 with the moving body 5. This pawl locking mechanism 77 is '
In the -X embodiment, the two locking pawls 79 supported on the drive body 5 for turning are set to the hub φ1 and the flat turning i1i to 11. have. Image stopper γ
Entraining ring 81 located radially 71 towards 9
The claw teeth 83 located on the inside are pushed into the hub sleeve 7 so as not to rotate. The locking claw 79 is a ring spring 85
The pawl tooth 83 is preloaded elastically by the spring.
The state of engagement is maintained.

The locking pawl 79 of the pawl mechanism 77 can be controlled as described below, and C. Whether the locking pawl 79 is engaged with the pawl tooth 83 or is maintained in a non-engaged state. The gear position of the two-stage transmission hub is defined accordingly. A control ring 87 provided for controlling pawl locking mechanism 77 is shown in FIGS. 4 and 5. This control ring 87 is arranged inside the tubular extension 13 of the drive body 5 on the side of the ball bearing 3 facing away from the ball bearing 11 in the axial direction, and is shaped W so as to control the bearing cone 33 of the ball bearing 3. It is axially slidably enclosed. The control ring 87 has two diametrically opposed and generally radially projecting control arms 89.
Each of the control arms 89 has one of the notches 15 of the tubular extension 13 and is axially engaged between the pawl locking mechanism 77 and the locking lock 21.

The control arm 89 forms a raised bevel 91 at its end, which raises the control portion 93 at each of the image pawls during axial movement of the control ring 87.
cooperate with each other to separate the corresponding locking claws 79 from the claw teeth 83]
Ya-t-chi” two.

151
Then, press the control lever 'Fugu 8' to engage the pawl locking mechanism 7 in the axial direction.
7, the control arm 89 brings the locking pawl 79 freely into engagement with the pawl teeth 83 and the 1-0 two-speed hub can be switched manually via the operating device. For this purpose, +191 of the control ring 87
On the side opposite to the ball bearing 3 when viewed in the + direction, there are two push rings 97.9 surrounding the 11IlI bearing cone 33.
9 is provided. Both pushing rings 97.99 are respectively in contact with increasing direction pushing surfaces 101 and 103 in the circumferential direction, and both pushing rings 97.99 are axially pressed against each other via these axial pushing surfaces 101 and 103. supported in the direction. Push ring 9 remote from control ring 87
7 is rotatably supported on the bearing cone 33 and fixed in the axial direction by a retaining ring 105 on the opposite side 71 from the push ring 99 when viewed in the axial direction. The push ring 99 is axially slidably guided in the bearing cone 33 and is engaged with the axial vortex 107 of the bearing cone 33 .
``A force 1 is applied to the hub axle 1 by the flange projection 109 (it is held in such a way that it cannot be rotated). This thrust 1 extraction enables the control ring 87, which rotates together with the driver 5, to rotate by 4' with respect to the push ring 99, which does not rotate.

The push ring 97 has a lever portion 111 projecting in the radial direction on the outside when viewed in the axial direction of the sprocket 21.
is held removably, and this lever part 111
At a distance from the push ring 97 is a cable line 113 leading to a gear changeover lever or the like.
is hooked. A ring spring 115 is disposed between the push rings 97 and 99, surrounding the bearing cone 33, and the ring spring 115 has push rings 9γ at both ends.

99, and presses a rotatable push ring 97 against a stopper (not shown) fixed to the hub axle. This stopper has a push ring 97 on the spring.
When the push ring 99 is in contact with the push ring 97
It is arranged so that it occupies the position closest to It.

The suppression coil spring 95 presses the push ring 99 against the push ring 97 via the switching ring 87.

By pulling the cable line 113, the lever 1913
When the minute 111 is rotated, pull the push ring 99 &'', gJ exchange ring 87 or in the axial direction! The switching arm 89 of the switching ring 87 holds the pawl 79 from the pawl teeth 83.
--Gero. When the cable line 113 is loosened, the ring spring 115 returns the push ring 97 to its body position.
The pressing coil spring 95 releases the engagement 11 and the pawl 79.

In FIG. 1, the two-speed hub is shown in direct gear with the pawl locking mechanism 77 connected and connecting the driver 5 directly to the hub sleeve 7. In this case, the driving torque is from the sprocket 21 to the driver 5, the locking pawl 79, and the pawl tooth 8.
1 to the hub sleeve 7 through 3. The planetary gear holder 59 is driven via the planetary gear 63 and rotates at a lower rotation speed than the driving body 5. In this case, the locking pawl 71 overtakes the pawl teeth 73. When the cable line 113 is pulled, the switching ring 87 moves toward the left as seen in FIG.
This causes the locking pawl 79 to writhe from the pawl teeth 83. In this case, the driving torque is transmitted from the sprocket 21 to the hub sleeve 7 via the drive body 5, the planetary gear holder 59 and the stop pawl 71. In other words, in the two-stage variable speed hub, the driving rotation speed of the sprocket 21 is reduced and the hub sleeve 7
Kasproketso l-21,4: 1 rotation at a small rotation speed
'' be driven in the top gear.

The lever part 111 advantageously has a cable line 11 on its outer periphery.
It is constructed as a cable car with cable guides for 3. The lever part 111 is a push ring 97
The inner diameter of the rocket is 2.
This is smaller than the radial spacing between the protrusions 23 of No. 1. With this structure, when removing the lever part 111, it is also possible to remove the sprocket 2'1 at the same time, which makes it easier to install the two-speed hub, especially the hub. The spoke flange is easily installed.The lever part 111 and the push ring 97 are positively connected to each other through a plurality of locking mechanisms 117 so as not to be able to rotate in the forward direction. These locking mechanisms 117 are connected to the push ring 97 such that the lever portion 111 can be selectively secured to the push ring 97 in one of a plurality of angular positions.
7. Alternatively, they are distributed in the circumferential direction of the lever part 111. In this way, the basic position of the lever part 111 relative to the position of the push ring 97 can be adapted to the installation condition of the bicycle, such as the length and guidance of the cable line 113.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of the upper half of a vertical sail of a two-speed bicycle hub, and Fig. 2 is a partial view of the drive body of the two-speed hub shown in Fig. 1. Figure 6 shows the flow locking section of the two-speed transmission hub. 1 is a plan view schematically shown, FIG. 4 is a cross-sectional view of a switching ring used in a two-speed transmission hub taken along line IV--IV in FIG. 5, and FIG. FIG. 3 is a plan view of the switching ring. 1. Hub axle, 3, 9.11. Ball bearing, 5. Drive body,
7. Hub sleeve, 13. Tubular additional part, 15. Notch, 17. Shoulder, 19. Fixing member, 2 toss sprocket, 23,109. Protrusion, 25. 27. Spoke flange, 29. 31・Ji1: Screw thread, 33.35・・Bearing cone, 37.39・・Bearing shell, 41・One flange,
43.45...Guess 1-cover, 47.49.Stopper I, 51.Planetary gear transmission, 53..Sun gear, 5
5.-Hollow gear, 57.Supporting part, 59. Planetary gear holder, 61.Support pin, 63.-Planetary gear, 65.Annular cage, 6γ, 7γ.Claw locking mechanism, 69..Claw holder, 7L
79・Latching claw, 73.83・Claw tooth, 75,85,1
15. Ring spring, 81. Entraining ring, 87. Switching ring, 89. Switching arm, 91. Rising slope, 93. Control 1ii4j part, 95. Suppressing coil spring.
97.99・Push ring, 10L 103・・Axial direction push surface, 105・・II-ring, 107・・Axial direction #L111・・Lever part, 113・・Cable wire,
117...Stopping mechanism (1 other person) Continued from page 1 @ Inventor Bruno Markert Bergtheim 2 Hauptstrasse 19, Federal Republic of Germany M Author Erich Sierre Prosselsheim Frühlingstrasse 4 0 shots Beter Schleiper Boppenhausen Bergstrasse 5, Federal Republic of Germany

Claims (1)

[Claims] 1. A multi-speed hub for a two-wheeled vehicle, comprising (a) an input width (1) and (b) rotatably supported on the hub shaft (1) at a first bearing location. at least one sprocket) (
(c) a hub sleeve rotatably supported on the drive body (5) at a second bearing location and on the hub axle (1) at a sixth bearing location; (7) and) a planetary gear transmission (51) covered by a hub sleeve (7) and a drive body (5), the planetary gear transmission comprising a sun gear (51) with external teeth; 5
3), a hollow gear (55) having internal teeth, and a planetary gear holder (59), the planetary gear holder is rotatably supported by the holder, and the sun gear (53) and One planetary gear (6) engages with the hollow gear (55).
3), and one of these six transmission members
one (53) is held unrotatably on the hub-shaft (1), and the remaining two moving members (55, 59) are held on the hub-shaft (1).
), one of the two sliding members (55) rotating about the hub axle (1) is drive-coupled with the drive body (5), and O→ furthermore, A hub sleeve ( 7
) and a switchable coupling mechanism covered by a drive body (5); (f) a switching member that is axially movable with respect to the hub axle (1) and switches the coupling mechanism; (g) a switching member that switches the coupling mechanism in the axial direction; In the type in which the switching member is provided with an operating device operated by hand on the outside of the bar for movement, the switching member is the first 11Ql+
It is arranged on the opposite side of the receiving part from the third bearing part when viewed in the axial direction, and allows relative rotation between the switching part and the operating device about the hub shaft (1). The actuator is adapted to move the actuating device via a thrust bearing location, the switching element being arranged in at least one recess in the drive body (5) on the radial outside of the first bearing location. (15) A multi-speed transmission hub for a two-wheeled vehicle, characterized in that the hub is operatively connected to a coupling mechanism through the hub. 2. The coupling mechanism has a first pawl locking mechanism (77) in the drive path between the drive body (5) and the hub sleeve (7), and the pawl locking mechanism is attached to the hub axle (1). On the other hand, it has a pawl tooth (83) of the same q shape and a locking pawl (79) which is preloaded elastically in the direction of the engagement force and is rotatably supported on the drive body (5). The switching member maintains each of the locking pawls (79) in a state of movement away from the pawl teeth (83) in the first axial position, and in the second, axial position, the locking pawls (79) move away from the pawl teeth (83). 2. The multi-speed hub according to claim 1, wherein the edge locking pawl (79) is allowed to be engaged. The switching member rotatably surrounds the hub axle (1) and is configured as a switching ring (87), and the drive body (5) has a sprocket (21) in the tubular extension (13). The switching ring (87) is disposed on the side of the first bearing location opposite to the sixth bearing location when viewed in the axial direction, and the switching ring (87) is arranged on the side opposite to the sixth bearing location of the first claw locking mechanism (77).
3. The multi-speed hub according to claim 2, further comprising a switching arm (89) which passes through a corresponding recess in the tubular extension (13) for the purpose of the hub (79). 4. The multi-stage speed hub according to claim 1, wherein the switching ring (87) surrounds the hub axle (1) and forms a thrust bearing location together with the axially slidable ring (99). . 5. The second bearing location is arranged between the first bearing location and the sixth bearing location when viewed in the axial direction, and the first pawl locking mechanism (77) is connected to the second bearing location. The multi-speed hub according to claim 2, which is arranged on the side opposite to the sixth bearing location when viewed in the axial direction. 6. The coupling mechanism has a second pawl body 1'' in the drive path between the planetary vehicle holder (59) and the hub sleeve (7), and the mechanism (
67), and the pawl locking mechanism is attached to the hub axle (1) at 7.
Claim 1, characterized in that the locking pawl (71) has an identical pawl tooth (73) and at least one locking pawl (71) which is preloaded in a spring-elastic manner in the direction of engagement. The multi-speed hub according to any one of items 5 to 6. Z The pawl teeth (73) of the second pawl locking mechanism (67) are provided on the planetary holder (59), and have the locking pawl (71) of the second pawl locking mechanism (67). 7. The multi-speed hub according to claim 6, wherein the pawl holder (69) is unrotatably fixed to the hub sleeve (7). 8. On the side of the thrust bearing location opposite to the first bearing location as seen in the axial direction, they are rotatable relative to each other and are complementary and surround the hub axle (1). Two push rings (97, 99) having a shape are arranged, and one of the two push rings (one of which is
It has at least one pushing surface that increases in the axial direction in the circumferential direction, and the pushing surface is in contact with the opposing surface of the other pushing surface, and when the double pushing rings (97, 99) are rotated, Both push rings (97, 99) are separated from each other in the axial direction, and the push ring (97) that is farther away from the thrust bearing location when viewed in the axial direction is fixed in the axial direction and cannot be operated. A second push ring (99), which is rotatable through the load and which, seen in the axial direction, is adjacent to the thrust bearing location, is guided in a rotationally fixed manner relative to the hub lll1lI (1). A multi-speed hub according to any one of claims 1 to 7. 9 A second push ring (99) rotatably and slidably contacts the switching member to form a thrust bearing location, the second pushing ring (99), viewed in the uniaxial direction, contacting the switching member in a rotatable and slidable manner. On the side opposite the ring (99), the switching element is axially connected to the second push ring (99) and at the same time the second push ring (99) = f axially to the first push ring (97).
9. The multi-speed transmission hub according to claim 8, further comprising a pressure spring (95) that presses the transmission hub. 10 Insert the first push ring (97) or hub axle (1) into
The first push ring (97) and the lever part (111) are provided with a complementary shaped i1 In addition, an axially insertable coupling member is provided, via which the lever part (111) can be selectively moved relative to the first push ring (97). Multi-speed hub according to claim 8, which is connectable with the first push ring (97) in one of a plurality of angularly offset positions. 11. First bearing. The bearing cone (33) is fixed to the hub axle (1) in a non-rotatable manner.
3), in which the bearing cone (33) reaches between the first and sixth bearing locations when viewed in the axial direction and supports the sun gear (53) of the planetary gear transmission (51). A multi-speed hub according to any one of the following claims 1 to 1o.