JP3465873B2 - Steering joint device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering joint device for a motor vehicle, for example. 2. Description of the Related Art One of the structures of a steering device of an automobile will be described with reference to FIG. A steering shaft 54 extends from the steering wheel 55 and connects to the shaft 51 of the gearbox. Two rods are connected to the shaft 51 of the gear box and extend substantially symmetrically in the axial direction. A ball joint 111 is held at an end of the two rods opposite to the gear box. The ball joint 111 connects the rod and the wheel support 84 and the wheel support 84
Supports the wheels 71. In the steering device having such a structure, the operation of the steering wheel 55 is transmitted to the shaft 51 of the gear box via the steering shaft 54. Then, a gear (not shown) in the gear box rotates and the shaft 51 moves. The movement of the shaft 51 is further transmitted to the wheel support 84 via two rods, and the movement of the wheel support 84 causes the wheels 71 to change directions and move the vehicle in a desired direction of the driver. . [0003] A joint device 101 used for such a steering is configured as shown in FIG.
The rod 131 and the second rod 134 are connected and configured. The first rod 131 has a female screw 13 at one end.
3 and a hole 132 for holding the ball joint 111 at the other end. The ball joint 111 has a spherical ball head 114 and a handle 11 extending from the ball head 114.
3, a bearing 115 made of synthetic resin for holding a ball head 114 of the ball stud 112, and a handle 113 holding the bearing 115 and projecting a handle 113 of the ball stud 112 from a small opening 118. A housing 117 for caulking and fixing a metal closing plate 124 to the opening 119, a small opening 121 is attached to the outer periphery of the handle 113 of the ball stud 112, and a large opening 122 is attached to the outer periphery of the housing 117 by an annular circlip 123. And a dust cover 120. 142 is a nut,
The handle 113 of the ball stud 112 is prevented from coming out of the hole 85 of the wheel support 84. [0005] The second rod 134 has a female thread 137 at one end and a mounting portion 135 having a hole 136 at the other end.
have. The first rod 131 and the second rod 13
4 are connected by a screw member 161. Screw member 1
Numeral 61 has a nut 162 in the center, and has a right male screw 165 and a left male screw 166 which are twisted and screwed around the nut 162 in the opposite direction. The left male screw 166 of the screw member 161 is screwed into the female screw part 133 of the first rod 131, and the right male screw 165 is screwed into the female screw part 137 of the second rod 134, and fixed by nuts 163 and 164, respectively. The first rod 131 is connected to the wheel support 84 through a ball joint 111, the second rod 134 is Giyabo
The mounting part 135 is mounted on the mounting part of the shaft 51 of the box.
ing. [0007] Such a steering joint device 101 is connected to a first rod 131 and a second rod 131 by a screwing member 116.
When connecting the rods 134, the left male screw 166 screwed to the female screw 133 of the first rod 131 and the right male screw 165 screwed to the female screw 135 of the second rod 134
The distance from the gearbox shaft 51 to the wheel support 84 was changed by adjusting the length of the gearbox to adjust the toe of the left and right wheels. [0008] However, the joint device 101 having the above structure has two rods 131 and 134.
, There is a problem that it is difficult to perform fine adjustment by the screwing member 161. In addition, there is a problem that since the number of parts is large, the number of processing steps increases accordingly. Therefore, the present invention solves the above-mentioned problems,
An object of the present invention is to provide a steering joint device that can easily adjust the toe and can suppress an increase in the number of processing steps. [0010] The constitution of the present invention is as follows. [0011] A steering joint device for connecting a steering shaft and a wheel support, comprising: a ball stud having a spherical ball head and a handle extending from the ball head; and a ball stud handle. In a joint device comprising a ball joint comprising a housing having an opening to be protruded and a rod extending from the housing of the ball joint in a direction perpendicular to the axis thereof, a handle portion of the ball joint is formed in a hole of a wheel support through an annular collar. When inserted, the central axis of the ball stud is eccentric with respect to the outer peripheral central axis of the collar, and the collar is rotatable with respect to the hole in the wheel support. An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a joint device 1 of a steering device of a motor vehicle and its peripheral devices. From the steering wheel 55 to the steering shaft 54
Extend and connect to the shaft 51 of the gearbox. Two rods are connected to the shaft 51 of the gear box and extend substantially symmetrically in the axial direction. A ball joint 11 is held at an end of the two rods on the side opposite to the gear box. The ball joint 11 connects the rod and the wheel support 84, and the wheel support 84 supports the wheel 71. In the steering device having such a structure, the operation of the steering wheel 55 is transmitted to the shaft 51 of the gear box via the steering shaft 54. Then, a gear (not shown) in the gear box rotates and the shaft 51 moves. The movement of the shaft 51 is further controlled by two rods,
4 and the movement of the wheel support 84 causes the wheels 71 to change direction and move the vehicle in the driver's desired direction. The joint device 1 used for such a steering has a configuration as shown in FIG. Reference numeral 31 denotes a rod having a hole 32 at one end for enclosing the ball joint 11 and a mounting portion 33 having a hole 34 at the other end. The ball joint 11 includes a ball stud 12 having a spherical ball head 14 and a handle 13 extending from the ball head 14, and a bearing 15 made of synthetic resin for enclosing the ball head 14 of the ball stud 12. , Holding the bearing 15, projecting the handle 13 of the ball stud 12 from the small opening 18, and inserting the metal closing plate 2 into the large opening 19.
4 and a small opening 21
The dust cover 20 has a large opening 22 on the outer periphery of the handle 13 of the ball stud 12 and is attached to the outer periphery of the housing 17 by an annular circlip 23. Reference numeral 61 denotes a collar. The handle portion 13 of the ball stud 12 is taperedly fitted in the hole portion 62, and has a concave portion 63 on the end surface on the wide side of the collar 61 opposite to the spherical head. As shown in FIG. 3, the collar 61 is formed such that its outer peripheral center axis O and the center O ″ of the hole 62 of the collar 61 into which the handle 13 of the ball joint 11 is inserted are eccentric. As shown, 41
Is a lock nut for fixing the handle 13 of the ball joint 11 to the hole 62 of the collar 61. Numeral 42 denotes a nut for preventing the handle 13 of the ball stud 12 from coming out of the hole 62 of the collar 61. The joint device 1 can adjust the toe of the left and right wheels depending on the installation position when the collar 61 is inserted into the hole 85 of the wheel support 84. That is,
The ball stud 1 when the handle 13 of the ball stud 12 is inserted into the outer peripheral center axis O of the collar 61 and the collar 61
2 is different from the center axis O ′ of the wheel support 2 when the collar 61 is inserted into the hole 85 of the wheel support 84.
2 and 4, a tool (not shown) is inserted into the concave portion 63 and the collar 61 is rotated about the outer peripheral center axis O to move from the center axis O 'of the ball stud 12 to the mounting portion 33 as shown in FIGS. Length is changed. Therefore, the distance between the wheel support 84 connected to the rod 31 by the ball joint 11 and the shaft 51 of the gear box can be changed. As described above, according to the present invention, there is provided a steering joint device for connecting a shaft on which a steering wheel is displaced and a wheel support, and comprises a spherical ball head and a ball extending from the ball head. A joint comprising a ball joint comprising a ball stud comprising a handle portion to be formed and a housing having an opening for projecting the handle portion of the ball stud; and a rod extending from the ball joint housing in a direction perpendicular to the axis thereof. The handle of the ball joint is inserted into the hole through an annular collar, the center axis of the ball stud is eccentric to the center axis of the outer periphery of the collar, and the collar is rotatable with respect to the hole of the wheel support. Therefore, by rotating the collar, the distance between the steering shaft and the wheel support can be adjusted. It can be done easily. Also, only one rod is required,
The number of parts and the number of processing steps can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing a steering and peripheral devices. FIG. 2 is a partial cross-sectional front view illustrating a steering joint device according to an embodiment of the present invention. 3A is a sectional front view showing a collar according to an embodiment of the present invention, and FIG. 3A is a top view. FIG. 4 is a partial cross-sectional front view illustrating a state where a collar is rotated, illustrating a steering joint device according to an embodiment of the present invention. FIG. 5 is a partial cross-sectional front view showing a conventional steering joint device. DESCRIPTION OF SYMBOLS 11 Ball joint 12 Ball stud 13 Handle 14 Ball head 17 Housing 18 (Housing) Opening 31 Rod 32 Hole 51 Shaft 61 Collar 84 Wheel support 85 Hole O (Collar) Peripheral center axis O ′ (Ball stud) center axis

Claims (1)

(57) Claims 1. A steering joint device for connecting a steering shaft (51) and a wheel support (84), comprising a spherical ball head (14) and Ball head (1
A ball stud (12) comprising a handle (13) extending from 4) and a handle (13) of the ball stud (12).
(17) having an opening (18) for projecting
And a rod (31) extending from the housing (17) of the ball joint (11) in the direction perpendicular to the axis thereof, the hole (85) of the wheel support (84). ), The handle (13) of the ball joint (11) is inserted through an annular collar (61), and the ball stud (1) is inserted.
The center axis (O ') of 2) is eccentric with respect to the outer circumferential center axis (O) of the collar (61), and the collar (61) is rotatable with respect to the hole (85) of the wheel support (84). A steering joint device, characterized in that: