JP2514797Y2 - Engine mount mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a mounting structure of an engine mount mainly used in an automobile, and more specifically, to a front member of a frame provided with a center member, the front mount being mounted on the center member. Mounting structure for mounting rear mount

(Prior Art) Conventionally, as shown in FIG. 4, the mounting structure of this type of engine mount has the front portion of the frame (F) formed by integrally connecting a center member (CM) and a front member (FM). Attach the front mount (M1) to the member (FM) side, and to the rear side of the center member (CM),
Attach the rear mount (M2) via the support arm (A) that stands upright, and then mount these front mounts (M1)
The front and rear parts of the engine (E) are elastically supported on the frame (F) by the rear mount (M2) and the rear mount (M2). In a vehicle that receives a vehicle, for example, as compared with a case where the front mount and the rear mount are attached only to the center member, a supporting point in the front-rear direction of the engine is secured without extending the center member in the front-rear direction.

The center member (CM) is fixed by a fixing bolt (B1) at an intermediate portion in the longitudinal direction of the front member (FM).

The front mount (M1) is an outer cylinder (OT).
And an inner cylinder (IT) inserted into the outer cylinder (OT),
A mount rubber (G) is filled in each of the cylinders (IT) (OT), a plurality of vibration absorption adjusting gaps (S) are provided in the mount rubber (G), and the outer cylinder (OT) is provided with a first 1 bracket (BR1), and the second bracket (BR2) is attached to the shaft rod (P) which is inserted into the inner cylinder (IT), and the first bracket (BR1) is attached to the front member (FM). It is fixed with a fixing bolt (B2), and the second bracket (BR2) is fixed to the engine (E).

Further, the rear mount (M2) is provided with an inner cylinder (IT) and an outer cylinder (OT) similarly to the front mount (M1), and the mount rubber (G) is provided in each of the cylinders (IT) (OT). ), While supporting the shaft rod (P) inserted into the inner cylinder (IT) on the support arm (A), a bracket (BR3) is attached to the outer cylinder (OT) side, The bracket (BR3) is fixed to the engine (E).

(Problems to be solved by the invention) By the way, if the mounting pitch of the front mount (M1) and rear mount (M2) is incorrect, the vibration absorption adjustment is formed on the mount rubber (G). Since the clearance (S) is displaced and has a great influence on vibration absorption, the mounting pitch is required to be accurate, but in the conventional mounting structure, the center member (C
M) is fixed to the front member (FM) via a fixing bolt (B1), and the first bracket (BR1) of the front mount (M1) is fixed to the front member (FM).
Since it is fixed to the front member (FM) through the fixing bolt (B2), in other words, there are two fixing portions by the fixing bolt on the front member (FM) side where the front mount (M1) is supported. Each of these fixing bolts (B
1) Due to processing errors that occur in the fixed part of (B2),
There is a problem that the mounting pitch between each of the mounts (M1) and (M2) is likely to change, and since two fixing bolts (B1) and (B2) are used, the number of work steps is increased and the cost is increased. There was also a problem.

The present invention has been made in view of the above problems, and an object thereof is to attach a front mount to a front member and a rear mount to a center member coupled to the front member via a fastening body. regardless of,
An object of the present invention is to provide an engine mount mounting structure that can accurately set the mounting pitch between the front mount and the rear mount, reduce the number of work steps, and reduce the cost.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a front mount on a front member of a frame including a front member and a center member which is fixedly coupled to the front member by a tightening body. Is a mounting structure for respectively mounting a rear mount to the center member, wherein a mounting seat of the front mount is disposed at a mounting portion of the center member in the front member, and the tightening body is used.
The front mount is fixed to the front member together with a center member.

(Operation) Since the mounting seat of the front mount is fastened together with the center member and the front member by the fastening body, in other words, with one fastening body, the front mount, the center member, and Since the front members are integrally connected to each other, the front mount is mounted on the front member and the rear mount is mounted on the center member which is connected to the front member through the tightening body in order to secure a mounting width of the engine. Nevertheless, the mounting pitch between the front mount and the rear mount can be accurately set, and the number of work steps can be reduced.

(Embodiment) The mounting structure of the engine mount shown in FIGS. 2 and 3 has a front member (11), a rear member (12), and the members (11) and (12) arranged on both sides in the longitudinal direction. A frame (1) is composed of a pair of first and second side members (13) and (14) and a center member (15) installed at an intermediate portion between the front member (11) and the rear member (12). Then, the front mount (2) is mounted at a position close to the first side member (13) at an intermediate portion in the longitudinal direction of the front member (11), and at the rear side of the center member (15), upward. The rear mount (3) is mounted via the supporting arm (16) projecting toward the front side, while the side mount (4) is mounted at an intermediate portion of the second side member (14) so that these three front, Rear and side mounts (2) (3) 4), and so as to elastically support the engine (5) the frame (1).

The front mount (2) includes an inner cylinder (21) and an outer cylinder (22) fitted into the inner cylinder (21), and a mount rubber () is provided inside each of the cylinders (21) and (22). 23),
A plurality of vibration absorption adjusting gaps (24) are provided in the mount rubber (23), and a mounting seat (25) is inserted into a part of the outer circumference of the outer cylinder (22) and is inserted into the inner cylinder (21). Brackets (27) each having a substantially U shape are mounted on both sides of the shaft rod (26) to be mounted, the mounting seat (25) is fixed to the front member (11), and the bracket (27) is mounted on the engine. It is fixed to a part of the front wall of (5).

Further, the rear mount (3) includes an inner cylinder (31) and an outer cylinder (32), like the front mount (2), and the mount rubber (33) is provided in each of the cylinders (31) (32). ) While supporting both sides of the shaft rod (34) inserted into the inner cylinder (31) on the support arm (16),
A bracket (35) is attached to the outer cylinder (32) side, and the bracket (35) is fixed to a part of the rear wall of the engine (5).

Further, like the mounts (2) and (3) described above, the side mount (4) includes an inner cylinder and a mount rubber inside the outer cylinder (41), and a shaft inserted into the inner cylinder. Brackets (43) having a substantially U shape are attached to both sides of the rod (42) to fix the brackets (43) to a part of a side wall of the engine (5) and a part of an outer circumference of the outer cylinder (41). The second side member (14) through a plurality of supports (44)
Fixed to.

Then, in the above structure, the front mount (2) is attached to the frame (1) as follows.

That is, as shown in detail in FIG. 1, the mounting seat (25) fixed to the outer cylinder (22) of the front mount (2).
The front member (11) in the frame (1)
On the upper surface side of the front member (11) and the center member (15), they are arranged so as to overlap with each other, and the center member (15) is fixed to the front member (11). In 6), the mounting seat (25) is fastened together with the members (11) and (15).

Specifically, the front member (11) is formed into an internal hollow shape by using two upper and lower members (11a) (11b) having a hat-shaped cross section and welding both side edge portions thereof, and A reinforcement (11c) provided along the lower member (11b) is integrally interposed between the upper and lower members (11a) and (11b), and the reinforcement (11c) and the upper and lower members (11a) are provided. An insertion hole (11d) facing the mounting hole (25a) of the mounting seat (25) provided on the front mount (2) is formed through the (11b), while the reinforcement (11c) and the upper member are formed. A cylindrical spacer (11a) is formed on the outer peripheral portion of the through hole (11d) between the spacer (11a) and
e) is installed, and a through hole (15a) that faces the mounting hole (25a) and the through hole (11d) is formed on the upper wall side of the center member (15). A fixing nut (6a) capable of screwing the tightening body (6) is fixed to the inner side of 15a).

Then, from the upper side of the mounting seat (25), attach the tightening body (6) to the mounting hole (25a) and the insertion holes (11d) (15a).
The front mount (2) and each of the members (11) and (15) are tightened together by screwing through the nut (6a). By tightening together with the members (11) and (15), not only the accurate mounting pitch between the front mount (2) and the rear mount (3) is guaranteed, but also the work man-hours are reduced. Yes, and inside the front member (11), the reinforcement (11
By providing c) and the spacer (11e), the load applied to the front mount (2) can be received by the entire front member (11), and the strength of the front member (11) is enhanced. .

In the embodiment shown in FIG. 2, one lateral side of the mounting seat (25) mounted on the front mount (2) is superposed on the mounting portion of the front member (11) and the center member (15). The tightening body (6) is screwed into this overlapping portion, and the other side in the lateral direction of the mounting seat (25) is fixed to the front member (11) by another tightening body (7). ing.

(Effect of the Invention) As described above, in the engine mount mounting structure according to the present invention, the front member of the frame is provided with the front member and the center member that is fixedly coupled to the front member by the fastening member. Mount
In a mounting structure for mounting a rear mount to each of the center members, a mounting seat of the front mount is disposed at a mounting portion of the center member in the front member, and the front mount is mounted on the front member by the tightening body. Since the mounting member of the front mount is fastened together with the center member, the mounting seat of the front mount is fastened together with the center member and the front member by the fastening body, in other words, one fastening body. Therefore, since the front mount, the center member, and the front member are integrally combined, the front mount is mounted on the front member in order to secure a supporting point in the front-rear direction of the engine without extending the center member in the front-rear direction. , A center coupled to the front member via a tightening body In spite of mounting the rear mounts to the rear mounts respectively, the mounting pitch between the front mount and the rear mount can be accurately set, and further, the work man-hours can be reduced and the cost can be reduced, especially for light vehicles. We are now able to provide products suitable for vehicles that are restricted in their overall length.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing a mounting structure of an engine mount according to the present invention, FIG. 2 is a plan view showing the entire structure of a frame for mounting the engine mount, and FIG. 3 is a partially cutaway side view thereof. FIG. 4 is a partially cutaway side view showing a conventional example. (1) …… Frame (11) …… Front member (15) …… Center member (2) …… Front mount (25) …… Mounting seat (3) …… Rear mount (6) …… Tightening body

Claims (1)

(57) [Scope of utility model registration request] 1. A mounting structure for mounting a front mount to the front member and a rear mount to the center member of a frame having a front member and a center member coupled and fixed to the front member by a tightening body. A mounting seat of the front mount is arranged at a mounting portion of the center member of the front member, and the front mount is fixed to the front member together with the center member by the tightening body. Engine mount mounting structure.