JPH039458Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a movement regulating mechanism for a vehicle drive device including an engine, a clutch, a transmission, etc.

(Prior Art) As one type of conventional vehicle, a casing housing a power transmission mechanism is attached to the rear of the engine, and a stiffener plate is attached to both the engine and the casing at the lower part of the attachment part. A vehicle is provided in which a drive device that strengthens bending rigidity in the longitudinal direction is mounted longitudinally on a body frame comprising a pair of left and right frames extending in the longitudinal direction of the vehicle body and a cross member extending in the lateral direction of the vehicle body. An example is shown in FIG.

In such a vehicle, the front part of the casing 12 housing the power transmission mechanism constituting the drive device 10 is attached to the rear part of the engine 11 constituting the drive device 10, and the lower part of the attachment part of the engine 11 and the casing 12 is attached to the rear part of the engine 11 constituting the drive device 10. A stiffener plate 13 is attached to. Further, the drive device 10 is mounted on the cross member 22 of the vehicle body frame 20 via engine mounts on both sides of the engine 11, and is assembled to a part of the vehicle body via the engine mounts at the rear upper part of the casing 12. It is attached. Therefore, when a large external force is applied to the vehicle body in the longitudinal direction, a large inertial force acts on the drive device 10, causing a relative displacement in the longitudinal direction between the drive device 10 and the vehicle body. If this displacement is large, it affects the strength of the casing 12 and adversely affects the durability of the weakest part of the casing 12, such as the extension housing 12b.

(Purpose of the invention) The present invention has been devised to solve this problem, and its main purpose is to prevent excessive movement of the drive device by suppressing the relative displacement to a certain amount or less. The objective is to prevent negative effects on

(Structure of the Invention) In order to achieve the above object, the present invention provides a vehicle of this type, in which a portion of the stiffener plate protrudes a predetermined length toward the front of the vehicle body and is close to the cross member. In addition, the cross member is provided with a stopper member that faces the direction in which the stiffener plate protrudes, and the stopper member and the stiffener plate are positioned at a predetermined distance in the longitudinal direction of the vehicle body. There are structural characteristics.

(Operations and Effects of the Invention) As a result, in the present invention, when a large inertial force acts on the drive device and a large relative displacement occurs in the longitudinal direction between the drive device and the vehicle body, the stiffener plate of the drive device It comes into contact with the stopper member of the cross member to prevent excessive movement of the drive device. As a result, the adverse effects on the casing of the drive device can be eliminated. In particular, in the present invention, by effectively utilizing the stiffener plate, which is indispensable to such a drive device, the movement regulating mechanism can be provided with a simple configuration.

(Embodiment) An embodiment of the present invention will be described below based on the drawings. Fig. 1 shows a part of the drive device and body frame of a vehicle equipped with the movement restriction mechanism according to the present invention. There is.

In the vehicle, the drive device 10 is an engine 1
1 and a power transmission mechanism housed in a casing 12, and the casing 12 is formed by a transmission case 12a and an extension housing 12b attached to the rear thereof. The casing 12 is bolted to the rear of the engine 11 at its front portion, and a pair of left and right stiffener plates 13 are bolted to the lower portions of these mounting portions.
The stiffener plate 13 strengthens the bending rigidity of the mounting portion in the front-rear direction.

The vehicle body frame 20 includes a pair of left and right frames 21 extending in the front-rear direction of the vehicle body, and a plurality of cross pipes extending in the left-right direction of the vehicle body. These cross pipes are cross members that increase the strength and rigidity of the vehicle body frame 20, and a pair of brackets 23 are provided on both left and right sides of the front cross pipe 22. A driving device 10 is mounted on both brackets 23.
Both left and right end portions of the engine 11 are mounted and assembled via engine mounts (not shown). In the drive device 10, the upper rear portion of the casing 12 is assembled to a part of the vehicle body via an engine mount. This prevents transmission of vibrations from the drive device 10 to the vehicle body,
Moreover, the drive device 10 is displaced relative to the vehicle body in the front-back direction.

Therefore, in each stiffener plate 13, the front arm 1 attached to the engine 11 side
3a extends forward of the vehicle body below the side of the engine 11, and its front end is close to the top of the front cross pipe 22. Further, on the front cross pipe 22, a pair of left and right stopper members 24 are provided to protrude upwardly on the inner side of both the brackets 23. Each stopper member 24 faces each stiffener plate 13 in front thereof, and is positioned at a predetermined distance from the front end of each stiffener plate 13.

Therefore, when a large external force is applied to the vehicle body, such as when the vehicle is suddenly braked, and the drive device 10 is largely displaced forward relative to the vehicle body due to the large inertial force, each stiffener plate 13 comes into contact with each stopper member 24 on the front cross pipe 22 to prevent displacement of the drive device 10 by more than a predetermined amount. Therefore, excessive movement of the drive device 10 is prevented, and an adverse effect on the casing 12 of the drive device 10, particularly on the durability of the extension housing 12b, which is the weakest in the casing 12 in terms of strength, can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is a partial side view of a drive device and body frame of a vehicle equipped with a movement restriction mechanism according to the present invention, and FIG. 2 is a partial side view of a conventional vehicle corresponding to FIG. 1. Explanation of symbols, 10... Drive device, 11... Engine, 12... Casing, 13... Stiffener plate, 20... Vehicle body frame, 21... Frame, 22
...Front cross pipe, 24...Stopper member.

Claims (1)

[Scope of utility model registration request] A drive device in which a casing containing a power transmission mechanism is attached to the rear of the engine, and a stiffener plate is attached to the lower part of the attachment part of the engine and casing to strengthen the longitudinal bending rigidity of the attachment part. is mounted in the front-rear direction on a vehicle body frame comprising a pair of left and right frames extending in the front-rear direction of the vehicle body and a cross member extending in the left-right direction of the vehicle body,
The stiffener plate has a shape in which a portion of the stiffener plate protrudes a predetermined length toward the front of the vehicle body so as to be close to the cross member, and the cross member is provided with a stopper member facing in the protruding direction of the stiffener plate. . A movement regulating mechanism for a drive device in a vehicle, characterized in that the stopper member and the stiffener plate are positioned at a predetermined distance in the longitudinal direction of the vehicle body.