SE525531C2 - Adjusting means for a shift mechanism of a motor vehicle, as well as methods for manufacturing adjusting means and clamping means respectively - Google Patents

Abstract

The present invention relates to a clampable, lockable adjusting element for a gear shift mechanism of a motor vehicle (1). The gear shift mechanism comprises a tubular part (17), a flat part (18) and a gear shift lever (2) which is pivotally connected to a gear shift rod (6). The gear shift rod (6) is furthermore slid into the tubular part (17), the flat part (18) being pivotally connected to an operating element (7) of the gearbox (5). The tubular part (17) of the adjusting element is tubular with at least two longitudinal openings (19, 20) and is enclosed by a clamping element (10) designed for constrictive clamped locking between the tubular part (17) and the gear shift rod (6) when the gear shift lever (2) and the gearbox (5) are in corresponding positions. The adjusting element (9) comprises two largely identical components (13) fixed together, each having a flat section (13a) and a not completely semi-tubular section (13b). The invention also relates to a clamping element (10) according to the above, which comprises said torque arm (33), which is fixed to a leg (23) of the tubular part (17), and a gripper hook (32) interacting therewith. The present invention also relates to methods of manufacturing the aforementioned adjusting element (9) and clamping element (10) respectively.

Description

20 25 30 (JH F .J (FI (fl (34 ... xl \ J PRIOR ART In traditional actuators such as gear mechanisms in motor vehicles) a gear lever is usually mechanically connected to a gearbox. both longitudinal movements and rotary movements. a reciprocating shifting motion of the shift lever is transmitted to a substantially longitudinal reciprocating motion of the shift lever and a lateral movement of the shift lever is transmitted to a rotational motion of the shift lever.

By means of the movements, the gearbox is switched via the gear lever between the various gear positions via one or more control shafts belonging to the gearbox. The choice of gear position is thus a combination of rotation position and axial displacement position of the gear lever and the gearbox control shaft. When the gear mechanism is to be mounted, there is normally a problem with adjustment as the position of the gear lever must correspond to the gear position in which the gearbox is located. Normally a known gear is set at the gearbox, with the control shaft connected to the gear lever via an adjustable clutch. The gear lever, which is connected to the gear lever, is then set to the position corresponding to the gear position of the gearbox. In this position the coupling of the control shaft to the gear lever must be fixed. The coupling of the control shaft to the end of the gear lever usually includes a tube threaded on the end which can be moved back and forth over, and rotate around, the gear lever end. The tube is slotted, and with the aid of an adjustable clamping member a clamping lock against the gear lever can be obtained when the coupling of the control shaft to The purpose of this arrangement is that the gear lever should be x-x. It should be possible to adjust the position of the gear lever relative to a certain position of the control shaft and then lock it, so that the movement pattern of the gear lever is transmitted to the gearbox in a correct manner.

Previously known solutions to the above-mentioned problems, see the first paragraph of the description, however, entail relatively expensive and complicated manufacturing steps, where a pipe must be sawn off and deformed at one end. In addition, at least two slots must be milled up from the other end.

Furthermore, the prior art, as mentioned above, has a cast clamping device, which is relatively expensive to manufacture. A thread for the tightening screw must also be included.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple and inexpensive solution. It is also an object to obtain a solution which does not include cast or forged parts.

The invention then provides an adjusting member of the type indicated above, wherein the adjusting member comprises two fastened substantially uniform components, each with its own flat portion and each with its not completely half-tubular portion.

The invention thereby provides a clamping member of the type indicated above, wherein the clamping member comprises a torque arm extending substantially in a plane, which is fixedly fixed to a leg of the advantage, and a gripping hook cooperating therewith.

The invention also provides respective methods for manufacturing the above-mentioned adjusting means and clamping means, which features of the methods appear from the characterizing parts of claims 6 and 7. C H f 3 of! Preferred embodiments appear from the dependent claims.

There are several advantages of the present invention over the locking devices used previously: Preferably punched and shaped parts made of sheet metal are used, i.e. the two fastened substantially uniform components of the adjusting member and the torque arm and grip hook included in the clamping member are all parts punched out of metal plate.

The shaping of the punched parts to be formed takes place preferably via bending.

DESCRIPTION OF THE FIGURES The invention will be described in more detail in the following with an exemplary embodiment with reference to the accompanying drawings, in which Figure 1 schematically shows a clamping device according to prior art; Figure 2 shows a schematic side view of a vehicle for which the invention is intended; Figure 3 shows a sohematic side view of an adjustment mechanism according to the invention; Figure 4 a shows a punched out substantially rectangular flat iron before bending; Figures 4b-d show an adjusting member according to the invention in the following schematic views: from a concave side, from a shaped end and from the side, respectively; 10 15 20 25 30 Figure 5a Figure 5 b Figure 6 Figure 7 a Figure 7 b Figure 8 Figure 9 a Figure 9 b F. n »f: F. 77. 'iv' al .. M1 \ - x) shows a schematic side view of an adjusting member according to the invention; shows a section A-A of the adjusting means according to Figure 5 a; shows a manufacturing stage of a gripping hook according to the invention; schematically shows a view from one end of a gripping hook according to the invention; schematically shows a side view of a gripping hook according to the invention; schematically shows a torque rod according to the invention; schematically shows a view from one end of a gripping hook and a torque rod according to the invention in cooperating engagement with each other; and schematically shows a side view of a gripping hook and a torque rod according to the invention in cooperating engagement with each other.

PREFERRED EMBODIMENTS In previously known solutions to the above-mentioned problems of gear mechanisms between a gear lever and a gearbox, a slotted tube is used, which is mounted on the end of a gear lever facing the gearbox, in combination with a cast clamping device of the type shown schematically in the pipe. The clamping device 100 is provided with a tightening screw 101 for clamp locking. The clamping device is furthermore provided in a known manner with a projection or ear 102, with a hole 103 to which a torque rod (not shown) is hingedly attached. The end of the tube facing the gearbox is usually deformed via forging, for example flattened, for fastening the control shaft. Usually this attachment is in the form of a movable joint, such as a ball joint.

With reference to first Figure 2, the construction of a gear mechanism of a vehicle 1 for which the invention is intended to be applied, in this case a truck, will be schematically described. A gear lever 2, is articulated in a lever rack bracket 3, The gear lever 2 is provided in a conventional manner with an ergonomically designed lever knob 4 or lever head, intended to be gripped by hand by a driver of the truck for maneuvering a gearbox 5. The lever 2 is in cooperation with the gearbox 5 movable according to a certain movement pattern between different gear positions through partly forward / backward movements and partly laterally.

By means of the movements, the gearbox 5 is switched via a gear lever 6 in a known manner between the various gear positions via a control shaft 7 belonging to the gearbox 4, which is schematically shown in Figure 3. The gear lever 2 is in this case hingedly connected to the gear lever 6. a combination of rotational position and axial displacement position of the gear lever 5 and the control shaft 6, The gear lever 5 is connected to the control shaft 7 via a ball joint coupling 8. The ball joint coupling 8 is attached to a tubular adjusting member 9 slidable over the gear rod end 9 is flattened at the end where the ball joint coupling has been attached for 8 years. The adjusting member 9 is provided with openings 19, 20, and by means of an adjustable clamping member 10, which will be described in more detail below, clamped to the shift rod 6 so that it can not perform any movements relative to the shift rod 6. The purpose of this arrangement is to the position of the gear lever 2 must be adjustable relative to a certain position of the control shaft 7, so that the movement pattern of the gear lever is transmitted to the gearbox 5 in a correct manner. Namely, when the gear mechanism is to be mounted, a problem of adjustment normally arises as the position of the gear lever must correspond to the position of the gearbox 5 at the moment via the influence of 10 15 20 25 30 F. f? ÉÉ i ". 7 v _ .. \ _- x. 'J -_- à the control shaft 7 is located in. Normally a gear is set at the gearbox 5, with the control shaft 7 at the gearbox 5. Then the gear lever 2 is set, which is connected to the gear lever 6, into the position corresponding to the gear position of the gearbox 5. In this position the operating shaft 7 must be connected to the gear lever 6 and fixed, which is done by means of the adjusting member 9 and the clamping member 10.

Note that the clamping member 10 is hingedly connected to a torque rod 11 via a hinge coupling 12.

Furthermore, an embodiment of an adjusting member 9 and a clamping member 10 according to the invention will be described in more detail with reference to Figures 4-8.

The tubular adjustable portion 9 consists of two substantially identical welded flat irons, which before the weld are punched out and shaped so that they obtain the correct shape. The appearance of such a punched substantially rectangular flat iron 13 before forming bends is shown in Figure 4a, and the appearance of such a punched flat iron 13 after forming is shown in three views, namely from a concave side, from a shaped end and from the side in Figure 4b-d, respectively.

The punched piece of metal according to Figure 4a has two portions, a first portion 13a which is not to be deformed, but also continues to form a flat portion, and a second portion 13b which is to be shaped so as to obtain in cross section the shape of an incomplete half tube as shown in Figure 4b-d. By incomplete is meant that if two such halves are laid against each other to form a substantially circular tube, the halves must be placed at a space if a circular shape is to be obtained in cross section, as indicated in Figure 4c with center lines. The flat first portion 13a is angled upwards during the shape bending as shown in Figure 4b-d so that its contact surface 14 facing the rest of the metal piece forms a part of a first plane which is parallel to half a second plane of the tube tangential to the incomplete boundary edges 15, 16. and so that the first plane is slightly outside the opening of the incomplete half tube. If, as shown in Figure 5a, two metal pieces formed according to the above are joined together so that their respective second planes coincide, i.e. so that their flat contact surfaces 14 facing the other piece of metal are brought together, the adjusting member 9 as described above is obtained with a tube part 17 and a flat part 18. In this case, the cross-section incomplete half tubes, which constitute incomplete semicircles, will describe an incomplete circular shape by forming opposite openings 19, 20 where two complete semicircles would meet to form a complete circle, which is shown in the section in Figure 5b. These openings will for the tubular part constitute openings 19, 20 running along the advantage, where each of the openings 19, 20 converges to only one joint between the flat surfaces joined by the flat part 18 where the tube part 17 merges into the flat part 18. The joined plate the surfaces are attached to each other in a suitable manner, for example by welding. The flat portion has here been provided with a through hole 21, which is intended for the previously mentioned ball joint coupling 8 for further coupling to the gearbox 5 via the operating shaft 7.

The longitudinal openings 19, 20 of the pipe part 17 mean that the two incomplete semi-tubular parts of the pipe part 17 which constitute the legs 22, 23 of the pipe part will allow a certain suspension, which means that the two legs 22, 23 of the pipe part can be compressed slightly.

The pipe part 17 can now be stepped on the gear rod 6 shown in Figure 5, where the pipe part 17 has such a diameter that the gear rod 6 can be reciprocated freely and rotated axially in the pipe part 17. On the other hand, the two legs 22, 23 of the pipe part are pressed together. and thus the entire adjusting member 9 relative to the gear rod 6 by clamping action so that no movements relative to the gear rod 6 are allowed. To achieve such a locking, a clamping device 10 according to the invention is used, which will be described in more detail in the following. 10 15 20 25 30 FÜF 'FÉ74 yiél. \ .. I '.. | Figure 6 shows an O-shaped washer part 24 punched out of a metal plate, where also a further through hole 25 is punched out at one end. The washer part 24 is intended to be subsequently deformed by bending two uniform legs 26, 27 up around the dotted lines 28, 29 shown in the figure, i.e. symmetrically around the hole 25 so that the legs 26, 27 will have a substantially perpendicular extent relative to a first 30 and a second 31 portion connecting the legs, where the first portion 30 carries the hole 25.

The washer part 24 is further deformed so that a gripping hook 32 according to the views in Figures 7a and b is obtained, where the previously bent legs 26, 27 constitute gripping legs 26, 27 with each rounding having inner surfaces 40, 41 which are adapted to grip the previously mentioned pipe part 17. The two portions 30, 31 connecting the gripping legs have after the last deformation been placed so that the hole-supporting first portion 30 is closer to the curvature of the gripping legs than the second portion 31. Figure 8 shows a torque arm 33 punched out of a metal plate, at one end of which an ear 34 is formed through which a through hole 35 is punched.

At the other end, a small piece of pipe 36 is attached, for example by means of welding, intended to function as a holding screw bushing. Between the ends, one side of the torque arm 33 is provided with a rounded recess which forms a rounded surface 37 with a curvature which is adapted to grip the previously mentioned pipe part 17. The torque arm is not further formed, so that it constitutes a detail extending substantially in a plane.

The torque arm 33 and the gripping hook 32 are further adapted to be interconnected in cooperating engagement to together form the previously mentioned clamping means 10, as shown in the views in Figures 9a and b. to end in the middle of each other, so that they can provide a cooperating fit against the tubular part 17. Figure 9 shows a nut 38 attached, with for example welding, in immediate connection to the punched through hole 25 of the grip hook 32. A fixing screw 10 15 C71 Y n LT »(," l \ _, p. further in threaded engagement with the fastened nut 38. By tightening the fixing screw 39, the torque arm 33 and the gripping hook 32 are moved towards each other, and thus also the surfaces 37 adapted for the advantage 17 are moved. , 40, 41 of the torque arm 33 and the grip hook 32 against each other.

The following is described with reference to Figures 3 (and 9) how the clamping member 10 should cooperate with the pipe part 17. In this case the torque arm 33 also forms a holder for an attachment to the torque strut 11. The torque arm 33 is first welded to a leg 23 of the pipe part 17, so that the torque arm 33 is permanently fixed to this. The torque arm 33 is suitably placed at the outer end of the pipe part 17, so that a good clamping action is obtained when the torque arm 33 cooperates with the gripping hook 32 when they are brought into engagement with each other. When the gripping hook 32 is brought into engagement with the torque arm 33, they obtain a mutually cooperating position according to Figure 3 (see also Figure 9). In this position the pipe part 17 of the adjusting member 9 is moved on the gear rod 6, and the gearbox operating shaft 7 is fixed in the hole 21 in the flat part 18 of the adjusting member 9 via the ball coupling 8. The hole 35 punched at the torque arm ear 34 (shown in Figures 8 and 9) is intended constitute an articulated attachment for the torque rod 11, which torque rod 11 is intended to constitute a storage point for the movements of the gear rod during shifting. The torque rod 11 is fixed in the hole 35 via the hinged attachment 12.

Now the control shaft 7 can be operated so that a certain gear position for the gearbox 5 is obtained, after which the gear lever 1 is operated to assume a corresponding position. In this case, the gear rod 6 will slide in the pipe part 17 of the adjusting member 9. When the positions are satisfactorily corresponding, the fixing screw 39 is tightened so that the grip hook 32 will be clamped against the pipe part 17 and the welded torque arm 33. Then they are compressed.

Uf.- (II (fl A! À 11 both legs 22 and 23 of the advantage so that a pinching clamping lock between the pipe part 17 and the gear rod 6 inserted in the pipe part can be obtained).

The invention is not limited to the embodiments described above and shown in the drawings, but can be varied within the scope of the appended claims.

Thus, the core of the invention is that an adjusting member 9 is manufactured by forming two substantially equally punched metal parts, which details are formed and then fastened together. Furthermore, the invention comprises a clamping member 10 which is made in two parts, a torque arm 33 and a gripping hook 32, which parts are arranged to cooperate. The torque arm and the cooperating grip hook can be designed in many ways without losing the function as described above. The basis is that both parts can be manufactured from punched metal parts, where the handle hook 32 is formed by bending. Their exact form is not decisive without them cooperating, as in the examples shown above. For example, a hole 25 of the handle hook 32 need not, but a thread can, if the wall thickness is sufficient, nut 38 be welded in immediate connection to be accommodated instead. With regard to the gripping hook 32, however, it may also be conceivable for it to be made of a metal rod which is bent into the correct shape.

It is also conceivable that the torque arm 33 is not welded to a leg 23 of the pipe part 17, but only abuts the leg 23 and is clamped against it by means of the gripping hook 32.

Location and designs of components, for example gear lever 6 and gearbox 5, are only schematic and for the purpose of explaining the invention and should not be construed as limiting.

The invention is not limited to trucks, but can also be applied to other types of vehicles.

Claims (7)

10 15 20 25 30 for nr 1116997 JsT / .isr MV * V41 2004-04-15 12 PATENTKRAV A clampable lockable adjusting means for a shift mechanism of a motor vehicle (1), which shift mechanism comprises a pipe part (17), a fl part (18) and a gear lever (2) which are hingedly connected to a gear rod (6), which gear rod (6) ) is further slidably inserted into the pipe part (17) of the adjusting member and where the flat part (18) of the adjusting member is hingedly connected to an operating member (7) of the gearbox (5) and which pipe part (17) of the adjusting member is tubular with at least two longitudinal openings (19, 20). ) and which pipe part (17) is further at least partially enclosed by a clamping member (10) arranged for pinching the clamping lock between the advantage (17) and the gear rod (6) inserted in the advantage when the gear lever (2) and the gearbox (5) are in corresponding positions, where the shifting mechanism further comprises a torque arm (33), coupled to a torque rod (11), characterized in that the adjusting means (9) comprises two fastened substantially uniform components (13) with their respective portions (13a) and was its not completely semicircular portion (13b). Adjusting means according to claim 1, characterized in that the clamping means (10) comprises said torque arm (33) which extends substantially in a plane, and is fixedly fixed to a leg (23) of the advantage (17), and a gripping hook (32) cooperating with the torque arm (33). Clamping means for pinching clamping means of an adjusting means for a shifting mechanism of a motor vehicle (1), which shifting mechanism comprises a pipe part (17), a flat part (18) and a gear lever (2) which are hingedly connected to a gear lever (6), which gear rod (6) is further slidably inserted into the pipe part (17) of the adjusting member and the flat part (18) of the adjusting member is articulated (5) and which pipe part (17) of the adjusting member is tubular with at least one longitudinal connection to an operating member (7) of the gearbox opening (19 , 20), wherein the clamping means (10) at least partially encloses the advantage (17) and is arranged for pinching clamping between the pipe part (17) and the gear rod (6) inserted in the pipe part when the gear lever (2) and the gearbox (5) are in corresponding positions, where the shifting mechanism further (33), coupled to a torque rod (11), that the clamping means (10) said torque arm (33) which extends substantially in a plane and is fixed includes a torque arm feature ad av comprises fixed to a leg (23) of the pipe part (17), and a gripping hook (32) cooperating with the torque arm (33). Clamping means according to claim 3, characterized in that the adjusting means (9) comprises two fastened substantially uniform components (13), each with its own part (13a) and its own not completely half-tubular part (13b). Clamping member according to claim 3 or 4, characterized in that the torque arm (33) axed at the pipe part (17) of the adjusting member is hingedly attached to the torque strut (11). A method of manufacturing a clampable lockable adjusting member according to claim 1, characterized in that the method comprises the steps of: punching two substantially rectangular pieces of metal (13) out of a metal plate; forming a second portion (13b) included in each piece of metal (13). which is bent so as to obtain in cross-section the shape of an incomplete half-tube; angling of a first portion (13a) included in each piece of metal, which is angled so that a contact surface (14) facing the other piece of metal forms a part of a first plane which is parallel to a second plane tangential to the boundary edges of the incomplete half tube ( 15, 16) and so that the first plane is slightly outside the opening of the incomplete half tube; 10 15 20 25 30 01 l ”J Un 1.31 ud _.) 14 combination of the two metal pieces (13) formed as above by bringing the contact surface (14) of the respective metal piece facing the other piece of metal together and joining; and receiving a mounting hole (21) for a control shaft (7). A method of manufacturing a clamping member according to claim 3, characterized in that the method comprises the steps of: punching an O-shaped washer member (24) out of a metal plate, in which washer member a further through hole (25) is also punched out; deformation of the washer part (24) by bending two shaped legs (26, 27) symmetrically around the hole (25) so that the legs (26, 27) will have a substantially perpendicular extension relative to a first (30) and a second (31) portion connecting the legs (26, 27), the first portion (30) supporting the hole (25); further deforming the washer part (24) so that a gripping hook (32) is obtained, where (26, 27) gripping legs (26, 27) with each rounding having inner surfaces (40, the previously bent legs 41) which are adapted to grip the adjusting member pipe part (17); insertion of threads immediately adjacent to the hole (25); final deformation of the washer member (24) so that the two portions (30, 31) connecting the gripping legs are positioned so that the hole-supporting first portion (30) is closer to the curvature of the gripping legs than the second portion (31); and further from a metal plate punching of an arm part (33) with a through hole (35) through an ear (34) at one end of the arm part; and attaching a pipe piece (36) to the other end of the arm member; where between the ends one side of the torque arm by the punching procedure is (33) provided with a rounded recess which forms a rounded surface (37) with a curvature adapted to grip the pipe member (17) of the adjusting member, the method further comprising the steps of: (ITT F- D Lfl (_51 i. .I ___; 15 joining the torque arm (33) and the gripping hook (32) to cooperate engagement to form the clamping member (10) together; and finally inserting a fixing screw (39) through the pipe piece (36) of the torque arm (33), which axle screw (39) is further passed through the circumferentially punched hole (25) of the gripping hook (32) and further in threaded engagement with the threads inserted in immediate connection with the hole (25).