JP2009520924A - Link plate chain especially for vehicle drives - Google Patents

Abstract

  The present invention particularly relates to a link plate chain (1) for a vehicle drive device, and is provided with a plurality of chain link plates (11) coupled to each other jointly via pressing members (2, 3). The pressing member (2, 3) extends in the transverse direction with respect to the longitudinal direction of the link plate chain and is disposed in the opening (12) of the chain link plate (11). 2, 3) and the chain link plate (11) are arranged with curved contact surfaces (7, 8, 9, 10), and the contact surfaces (7, 8, 9, 10) are arranged on the contact surfaces (7, 8, 9, 10). The pressing member (2, 3) and the chain link plate (11) are in contact with each other for force transmission, and the rolling surface (5, 5) is formed by bending the pressing member (2, 3). 6) is arranged and the rolling surface (5 6) in the cross section in which the pressing members (2, 3) roll in contact with each other for force transmission and the pressing members (2, 3) extend in the longitudinal direction of the link plate chain It is formed asymmetrically in the pressing member height direction, and the contact surface (7, 8, 9, 10) is formed between the pressing member (2, 3) and the chain link plate (11) in the pressing member height direction. In the type provided in the upper contact surface region and the lower contact surface region, the opening (12) of the chain link plate (11) is at least one region curved inward ( 13).

Description

  The present invention is a link plate chain particularly for a vehicle drive device, and is provided with a plurality of chain link plates that are connected to each other in a joint manner via a pressing member, and the pressing member is a longitudinal member of the link plate chain. Each contact surface extending in a direction transverse to the direction, arranged in the opening of the chain link plate, and curvedly formed in the pressing member and the chain link plate. The pressing member and the chain link plate are in contact with each other for force transmission, and a rolling surface formed by bending the pressing member is disposed, and the pressing member is disposed along the rolling surface. However, the pressing members are asymmetrically formed in the height direction of the pressing member in the cross section extending in the longitudinal direction of the link plate chain. Cage, the contact surface, a pressing member heightwise direction, to be of the type which is provided on an upper contact surface area and a lower contact surface area between the pressing member and the chain link plates.

  This type of link plate chain may be a toothed chain. This toothed chain can be used, for example, in an automobile transfer or as a drive chain for an auxiliary device of an automobile internal combustion engine. In the above case, the link plate chain can be formed as a toothed chain, in which case the tensile force is transmitted from the drive side chain wheel to the driven side subrocket (Kettenrad). Further, the link plate chain as described at the beginning can be used as a conical pulley-type winding transmission for an automobile or the like, for example, as a tensile force transmission means. It can be transmitted via a contact with friction between the shaped pulley pair and the conical pulley surface of the couple.

  In the case of a known link plate chain, a symmetrical pressing member (also called a swinging pressing member) arranged at the opening of the chain link plate has been used. In this case, this known pressing member is symmetrical with respect to a symmetry plane that divides these pressing members into an upper half and a lower half. In this configuration, the distance from the inner peripheral edge of the opening that accommodates the pressing member to the outer peripheral edge of the chain link plate is minimized in the region of the lower curved portion that faces the upper curved portion of the chain link plate. In turn, the cross-section provided to the force transmission is minimized. Therefore, this configuration leads to stress concentration in the region between the opening of the chain link plate and the edge of the chain link plate. Stress concentration reduces the life and transmission capacity of the chain link plate and thus the entire link plate chain.

  In order to deal with this problem, a link plate chain based on the unpublished patent specification DE102005054714.1 by the applicant of the present application is already known, and this link plate chain is an asymmetric pressing member in the height direction of the pressing member. And thus the component stresses generated in the upper and lower contact area between the pressing member and the chain link plate are clearly reduced, thus increasing the life of the link plate chain.

  This asymmetric pressing member is also used in the opening of the chain link plate, and in this case, it must be carried out in such a way that the rolling surfaces of the pressing member are arranged corresponding to each other. Furthermore, the asymmetric pressing member needs to be state-oriented and inserted into the opening. As a result, the opening is formed wider in a region corresponding to the wide portion on the upper side of the pressing member. It should be noted that, as already mentioned, the asymmetrical pressing members are state-oriented and inserted into each other in the opening of the chain link plate.

  Now, starting from here, the object of the present invention is to improve the link plate chain so that an incorrect assembly situation of the pressing member in the link plate chain can no longer occur.

  The present invention thus solving this problem provides a link plate chain having the features of claim 1. Advantageous configurations of the invention are described in the separate claims.

  Therefore, in order to solve the above-mentioned problems, the present invention is a link plate chain particularly for a vehicle drive device, and is provided with a plurality of chain link plates that are jointly connected to each other via a pressing member. The member extends in the transverse direction with respect to the longitudinal direction of the link plate chain, and is disposed at the opening of the chain link plate. Each contact surface formed by bending the pressing member and the chain link plate includes The pressing member and the chain link plate are in contact with each other for force transmission along the contact surface, and a rolling surface formed by bending the pressing member is disposed, The pressing members are in contact with each other for force transmission and roll along the rolling surface, and the pressing members are in the cross section extending in the longitudinal direction of the link plate chain. It is formed asymmetrically in the height direction, and the contact surface is provided in the upper contact surface region and the lower contact surface region between the pressing member and the chain link plate in the pressing member height direction. In one type, a link plate chain is provided in which the opening of the chain link plate has at least one region that is curved in an inward direction.

  Therefore, in other words, the present invention is a link plate chain having a chain link plate, and the opening for accommodating the pressing member pair has at least one region narrowed by the region curved in the inner direction. As a result, the insertion of the pressing members into the openings is only possible if the pressing members are oriented in an appropriate state relative to each other, and at least one if the pressing members are misoriented Since the pressing member and the inwardly directed and curved region are relatively overlapped with each other, the pressing member cannot be inserted into the opening.

  Therefore, the arrangement of the pressing members within the openings is now possible according to the invention when the pressing members are in a prescribed state with respect to each other.

  In this case, the present invention proposes that the region is a protrusion extending away from the convex peripheral edge to the convex curve when viewed from the inside of the opening. The protruding portion is curved and extended inward from the convex peripheral edge toward the opening, and as a result, the pressing members are inserted into the opening in a state in which the pressing members are in a prescribed state. Only possible, otherwise the pressing member or at least one pressing member cannot be inserted into the opening, and thus relative to the mutual and chain link plate of the pressing members in relation to the state of the pressing member Incorrect integration cannot occur.

  The asymmetric pressing member has a recess on the back surface facing the rolling surface. This recess can advantageously be used to accept manufacturing errors during the manufacture of the pressing member. In this case, according to the present invention, the inwardly curved region of the chain link plate is a region of the peripheral portion sufficiently opposed to the recess when the pressing member is arranged in the opening as prescribed. Has been placed. In other words, the protruding portion extending away from the convex peripheral edge to the convex curve is provided on the chain link plate so as to face the concave portion of the pressing member. Further advantageously, in this case, the inwardly curved area utilizes a configuration space provided on the basis of the depression of the pressing member, so that the depression of the pressing member is viewed in the travel direction of the link plate chain. The region of the chain link plate that is located in the lower region and that is also curved inwardly is related to the stress concentration in the lower region of the chain link plate opening, i.e. known link plate chains The cross-section of the chain link plate provided for force transmission is thus increased on the basis of the inwardly directed and curved area, and thus It is achieved that the material stress in the chain link plate is reduced at a given force.

  The present invention is a chain link plate for a link plate chain, as described above, provided with two openings for accommodating two pressing member pairs, in which case the chain link plate according to the present invention is Each opening is improved to have a region extending inwardly from the periphery of the opening. The region extending inwardly preferably is formed at a location opposite to the location of the recess to be arranged.

  Therefore, the chain link plate is sufficiently complementary in shape and surface with respect to the recess formed on the back surface of the pressing member, and the overlapping of the pressing member and the region is such that the orientation of the pressing member is as specified with respect to the opening. A region is provided that extends inward of the opening as occurs when the orientation is different. Therefore, the assembly or insertion of the pressing members into the openings is only possible when the pressing members are oriented as specified relative to the opening of the chain link plate, so that the pressing members are mutually specified as specified. This is possible only when relatively oriented at the same time, not when misoriented.

  The link plate chain according to the present invention is a link plate chain particularly for a vehicle drive device, and is provided with a plurality of chain link plates that are coupled to each other jointly via a pressing member. Link plate extends in the transverse direction with respect to the longitudinal direction of the chain, is arranged at the opening of the chain link plate, and the contact surface formed by bending the pressing member and the chain link plate is arranged respectively. The pressing member and the chain link plate are in contact with each other for force transmission along the contact surface, and a rolling surface formed by bending the pressing member is disposed on the rolling surface. Along the cross-section where the pressing member rolls in contact with each other for force transmission, and the pressing member extends in the longitudinal direction of the link plate chain A type in which the contact surface is formed asymmetrically in the vertical direction, and the contact surface is provided between the pressing member and the chain link plate in the upper contact surface region and the lower contact surface region in the pressing member height direction. The opening of the chain link plate is characterized in that it has at least one region curved in the inner direction.

  The link plate chain according to the invention advantageously has the region extending into the opening so that the pressing member can be arranged at the opening only when the pressing members are in a prescribed state.

  In the link plate chain according to the present invention, the region is preferably a protrusion that extends away from the peripheral edge of the convex toward the convex curve.

  In the link plate chain according to the present invention, advantageously, the pressing member has a concave portion on the back surface facing the rolling surface, and the inwardly curved region has a predetermined pressing member in the opening. In the case of being arranged, it is arranged in the region of the peripheral part arranged sufficiently facing the concave portion.

  A chain link plate according to the present invention is a chain link plate for a link plate chain according to any one of claims 1 to 4, wherein two openings for receiving two pairs of pressing members are provided. In this type, each opening has a region extending inwardly from the peripheral edge of the opening.

  In the chain link plate according to the present invention, advantageously, the region is considerably complementary in shape and surface to the recess formed on the back surface of the pressing member, and the overlapping of the pressing member and the region is The region extends inwardly of the opening, as occurs when the orientation of the member is different from the prescribed relative orientation with respect to the opening.

  In the following, the invention will be described in detail with reference to the drawings.

  The illustrated parts respectively show a part of one chain link plate provided to form one toothed chain.

  In the following, FIG. In FIG. 1a, a chain link plate 1 is shown, which chain link plates 1 are stacked on top of each other to form a chain link plate stack. This chain link plate stack can be used to form a toothed chain. For this purpose, a pair of pressing members consisting of asymmetric pressing members 2 and 3 is inserted into the opening 4 of the chain link plate 1. In the illustrated embodiment, the pressing member 2 is a so-called fixed pressing member. This is because the fixed pressing member is caulked to one lower chain link plate and one upper chain link plate when viewed in a direction perpendicular to the drawing plane. Each upper and lower chain link plate accommodates a stack of chain link plates 1 therebetween. The pressing member 3 is a free pressing member formed shorter than the pressing member 2. This free pressing member is not caulked by the upper and lower chain link plates and has a rolling surface 5 as in the case of the pressing member 2. The rolling surface 5 can roll along the rolling surface 6 of the pressing member.

  The chain link plate 1 is provided with an upper contact surface 7 and a lower contact surface 8 in the region of the opening 4. These contact surfaces 7 and 8 cooperate with the upper contact surface 9 or the lower contact surface 10 of the pressing member 3 for force transmission. In this case, the distance between the contact surfaces shown in FIG. 1a is enlarged to make the contact surfaces easier to see.

  FIG. 1 a shows the state of incorporation of the swinging pressing members 2, 3 in the opening 4 in a proper state as specified, and a relatively wide asymmetry shown in the width direction (bidirectional arrow B). Each area | region of the typical pressing members 2 and 3 is arrange | positioned mutually opposed.

  Further, based on the configuration of the opening 4, there is also a case where the pressing members 2 and 3 in the opening 4 do not perform the correct function, that is, they are wrongly installed, as shown in FIG. Can be considered.

  In this case, the pressing member 2 on the left side in the drawing is still properly assembled in the opening 4, whereas the pressing member 3 is now assembled incorrectly. This is because the relatively wide area of the pressing member 3 is no longer disposed relative to the relatively wide area of the pressing member 2, and the pressing member 3 is rotated by 180 °, and consequently the opening 4 is mistaken. It is assembled and arranged. In this way, this incorrect assembly situation causes the pressing member to be caught at the opening 4 and, consequently, a malfunction that may lead to a failure of the link plate chain.

  In order to eliminate the problems caused by incorrect assembly at the opening 4 now, according to the invention, a chain link with an opening 12 having a region 13 which is directed inwardly and curved. A plate 11 has been proposed.

  FIG. 2 a shows a configuration showing the assembly in the proper state and thus the prescribed orientation of the pressing members 2, 3 in the opening 12 with respect to each other. The pressing members 2 and 3 have a recess 15 formed on the back surface 14 facing the rolling surfaces 5 and 6. The recess 15 is disposed sufficiently opposite to the inwardly directed and curved region 13, that is, in the region 13, the pressing members 2 and 3 are disposed as prescribed in the opening 12. In this case, it is located in the region of the peripheral edge 16 of the opening 12 that is sufficiently opposed to the recess 15.

  FIG. 2b now shows the state in which the pressing members 2, 3 at the opening 12 of the chain link plate 11 according to the invention are brought together due to the incorrect orientation. The pressing member 2 is also arranged in the opening 12 in a suitable state, while the wrong of the vibratory conveyor used, for example, when assembling the link plate chain according to the invention, as shown in FIG. Based on the conveyance, an incorrect assembly situation of the incorrectly oriented pressing member 3 is brought about. However, this incorrect assembly situation no longer occurs in the link plate chain according to the invention. This is because, in the region of the region 13 which is directed inward and curved between the region oriented inward of the opening 12 and the pressing member 3 which is misoriented, the region 13 of FIG. This is because insertion of the swinging pressing member 3 into the opening 12 of the chain link plate 11 is no longer possible. Accordingly, the misplacement of the pressing members 2, 3 at the opening of the chain link plate can no longer occur and the pressing member can only be inserted into the opening in the proper orientation accordingly.

  Further, the inwardly directed and curved region 13 enlarges the cross-section of the chain link plate 11 provided for force transmission (see cross-section “a” in FIG. 2a) and thus the chain link plate. The stress of the member at 1 is reduced. Thus, when the region 13 is laid at an angle of approximately 45 ° with respect to the horizontal line laid through this center point when viewed from the center point of the opening 12, in this case, the enlarged cross-section is a known chain. In the link plate structure, it extends to the region of the chain link plate 1 that is in the stress criticality, so that the present invention is also advantageous with regard to stress concentration in said region.

  By forming the opening 12 in the inwardly directed and curved region 13 similar to a cam, the incorporation of the oscillating pressing member in the link plate opening in the wrong direction can no longer occur. By providing an inwardly curved region in the region between the opening of the chain link plate and the outer periphery of the chain link plate, otherwise with minimal spacing, the component stress in this region Therefore, the chain link plate, and hence the link plate chain as a whole, is improved in durability and life.

  In general, features of the invention not described in detail individually above will be clearly shown in the claims and drawings.

It is the figure which looked at the part of the chain link plate provided with the rocking | swiveling press member arrange | positioned at the opening from the top, In this case, an opening permits the installation direction where two rocking | fluctuation pressing members were misoriented. Yes. FIG. 1b is a view similar to FIG. 1a, in which the right swinging pressure member is incorrectly incorporated relative to the left swinging member in the drawing plane. FIG. 3 is a top view of a portion of a chain link plate according to the present invention with a modified opening. Fig. 2a is a diagram similar to Fig. 2a, showing in this case the wrong assembly situation to be avoided.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Chain link plate, 2, 3 Pressing member, 4 Opening, 5, 6 Rolling surface, 7 Upper contact surface of chain link plate, 8 Lower contact surface of chain link plate, 9 Upper contact surface of pressing member 10 Lower contact surface of pressing member, 11 Chain link plate, 12 Opening, 13 area, 4 Back surface, 15 Recess, 16 Peripheral part, B width direction, D arrow, a Cross section

Claims (6)

  In particular, a link plate chain for a vehicle driving device is provided with a plurality of chain link plates (11) coupled to each other jointly via pressing members (2, 3). 3) extends in the transverse direction with respect to the longitudinal direction of the link plate chain, and is disposed in the opening (12) of the chain link plate (11). The pressing member (2, 3) and the chain link plate ( 11) and curved contact surfaces (7, 8, 9, 10), respectively, are disposed along the contact surfaces (7, 8, 9, 10). And the chain link plate (11) are in contact with each other for force transmission, and the pressing surfaces (2, 3) are provided with curved rolling surfaces (5, 6), A pressing member (5) along the rolling surface (5, 6) , 3) roll in contact with each other for force transmission, and the pressing member (2, 3) is formed asymmetrically in the height direction of the pressing member in the cross section extending in the longitudinal direction of the link plate chain The contact surfaces (7, 8, 9, 10) are located on the upper contact surface region between the pressing member (2, 3) and the chain link plate (11) in the height direction of the pressing member. In the type provided in the contact surface area, the opening (12) of the chain link plate (11) has at least one area (13) curved in the inner direction. Link plate chain especially for vehicle drive.   The region (13) is opened (12) so that the arrangement of the pressing members (2, 3) at the opening (12) is possible only when the pressing members (2, 3) are in a prescribed state. The link plate chain of claim 1 extending inward.   The link plate chain according to claim 1 or 2, wherein the region (13) is a protrusion that extends away from the peripheral edge (16) of the convex away from the convex curve.   The pressing member (2, 3) has a recess (15) on the back surface (14) opposite to the rolling surface (5, 6), and the inwardly curved region (13) has an opening ( 12), the pressing members (2, 3) are arranged in the region of the peripheral edge (16) arranged sufficiently opposite to the recess (15) when the pressing members (2, 3) are arranged as specified. The link plate chain according to any one of claims 1 to 3.   A chain link plate for a link plate chain according to any one of claims 1 to 4, in which two openings (12) for receiving two pairs of pressing members are provided. A chain link plate, characterized in that each opening (12) has a region (13) extending inwardly from the peripheral edge (16) of the opening (12).   The region (13) is sufficiently complementary in shape and surface to the recess (15) formed on the back surface (14) of the pressing member (2, 3), and the pressing member (2, 3) and the region The overlap with (13) extends inward of the opening (12) as occurs when the orientation of the pressing members (2, 3) is different from the prescribed relative orientation with respect to the opening (12). The chain link plate according to claim 5.

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