JPH04109621U - Engine mount structure of cab over vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to provide an engine mount structure that allows the engine to move forward and minimize damage to the cabin when excessive inertial force is applied forward to the engine. [Structure] A guide rail 13 is provided on the side frame 11 along the longitudinal direction of the vehicle body, and a roller mounting bracket 22 having a guide roller 24 that can freely roll on the guide rail 13 is provided on the mount base 21 provided on the engine 19. . Then, this roller mounting bracket 22 is fixed to the side frame 11 with a lock bolt 25, and the engine 1
When a forward inertial force acts on the engine 9, the lock bolt 25 is sheared and the engine 19 is moved forward along the guide rail 13.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is based on the engine mount structure of vehicles such as cab-over trucks. Regarding construction.

0002

[Conventional technology]

As shown in Fig. 5, the cab-over vehicle is installed on the floor panel 2 of the cabin 1. A driver's seat 3 is provided at the bottom of the floor panel 2, and an engine compartment 4 is provided at the bottom of the floor panel 2. ing. An outside air inlet 6 is provided on the front panel 5 of the cabin 1. This outside air inlet 6 communicates with the engine room 4.

0003 An engine 7 with an intercooler is installed in the engine room 4. mounted on a frame (not shown). Engine 7 is connected via clutch 8. and is connected to the transmission 9, and the transmission 9 is connected to the propeller shaft. connected to port 10.

0004 The engine 7 and transmission 9 usually have a cushioning material that absorbs vibrations. side frame by engine mount and transmission mount. The front end of the engine 7 is located near the front panel 5. Ru.

[0005]

[Problem that the idea aims to solve]

However, the engine mount structure configured as described above does not allow the engine 7 or and transmission 9 are connected to the engine mount and transmission mount. It is fixed to the side frame by bolts. Therefore, due to collision etc. When excessive inertia is applied to the engine 7 forward, the engine mount and transmission A large force is applied to the cushion mount. Therefore, assuming the situation described above, Engine mounts and transmission mounts must be strongly constructed. It is also structurally complex.

[0006] This idea was created by focusing on the above circumstances, and its purpose is to When excessive inertia is applied to the engine forward, the engine mount and trunk Minimize cabin damage by utilizing the input applied to the transmission mount. An engine mount structure for cab-over vehicles that can further improve safety. The aim is to provide structure.

[0007]

[Means to solve the problem]

This idea was designed to achieve the above-mentioned purpose by attaching the side frame to the front and rear of the vehicle body. A guide rail is provided along the direction, and a freely rolling guide roller is placed on this guide rail. The engine is supported on a mount base with a I support you right now. Additionally, attach the mount base and side frame to the front of the engine. This is due to the fact that it is fixed with a lock bolt that is sheared when an inertial force is applied in the opposite direction. Ru.

[0008]

[Effect]

When forward inertia is applied to the engine, the lock bolt is sheared and the engine The mount base supporting the gin is moved forward by guide rollers.

[0009]

【Example】

An embodiment of this invention will be described below based on the drawings.

0010 As shown in Figure 2, left and right side frames 1 of a vehicle such as a cab over truck 1 (only one shown) has a roughly U-shaped cross section, with an engine support on the opening side. A holding member 12 is provided. This engine support member 12 has an inward downward direction. It has an inclined surface 12a that slopes, and its upper and lower edges are connected to the side walls. It is fixed to the frame 11 by welding.

[0011] A guide rail is provided on the inclined surface 12a of the engine support member 12 along the longitudinal direction of the vehicle body. Rule 13 has been installed. The front end of this guide rail 13 is as shown in FIG. , extends to the vicinity of the front panel 15 of the cabin 14, and the tip thereof has a A stopper 16 is provided by bending at right angles to the top.

0012 On the other hand, the engine room 1 formed at the bottom of the floor panel 17 of the cabin 14 At 8, an engine 19 with an intercooler is installed. This engine 19 Protrusions 20 (only one is shown) are provided on both the left and right sides, and the lower surface of this protrusion 20 has a A mount base 21 is provided.

[0013] The mount base 21 is provided over the entire length of the engine 19 in the longitudinal direction. , roller mounting fittings 22, 22 are provided at the front end and the rear end. this The roller mounting bracket 22 is made by bending a metal plate into a U-shape and folding both ends outward at right angles. Attachment pieces 23, 23 are formed by bending.

[0014] As shown in FIGS. 3 and 4, the upper surface of the roller mounting bracket 22 is attached to the mount base. It is fixed to the bottom surface of 21. Furthermore, a guide is provided inside the roller mounting bracket 22. A roller 24 is rotatably supported. This guide roller 24 has flanges on both ends. It has flange parts 24a, 24a, and a roller part 24 between the flange parts 24a, 24a. b is in rolling contact with the guide rail 13.

[0015] Furthermore, the mounting pieces 23, 23 of the roller mounting bracket 22 include a plurality of lock bolts. 25... are fixed to the inclined surface 12a of the engine support member 12. This lo The back bolt 25 is sheared when excessive forward inertia is applied to the engine 19. It has strength, and when the lock bolt 25 is sheared, the guide roller 24 is guided. It can freely roll on the rail 13.

[0016] Therefore, the engine 19 moves on the guide rail 13 by the guide roller 24. It is supported so that it can move freely in the front and back direction, but under normal conditions it is supported by the lock bolt 25. Therefore, since the roller mounting bracket 22 is fixed to the engine support member 12, It is positioned and fixed at a predetermined position in the engine room 18.

[0017] According to the engine mount structure configured in this way, the lock is The roller mounting bracket 22 is fixed to the engine support member 12 by the bolt 25. Because of this, it is positioned and fixed at a predetermined position in the engine room 18, but other If an excessive inertial force is applied to the engine 19 in the forward direction due to a collision with vehicle A, etc. , lock bolt 25... are sheared.

[0018] When the lock bolt 25 is sheared, the guide roller 24 moves on the guide rail 13. Because the engine 19 can roll freely, the propeller shaft is rotated by the forward inertia force. The transmission is separated by a spline joint and the Move forward together with the propeller shaft.

[0019] Then, the engine 19 moves by a moving distance L, and the engine 19 moves toward the front end of the mount base 21. When the guide roller 24 contacts the stopper 16 of the guide rail 13, the engine The forward movement of the engine 19 is stopped, and the engine 19 is placed on the floor of the cabin 14 with its front end surface. Deformation of the front panel 15, that is, change to the driver's cab 14a and engine compartment 18 sides. You can hold the shape.

[0020] As a result, space for passengers in the driver's cab 14a can be secured, and damage to the vehicle body can be minimized. This has the effect of not only reducing the Ru.

[0021] In the above embodiment, the roller mounting bracket 22 is attached to the lock bolt 25. Therefore, although it is fixed to the engine support member 12, it is not limited to the lock bolt 25. It may also be a lock pin that is sheared when a large inertial force is applied.

[0022]

[Effect of the idea] As explained above, according to this invention, the side frame is attached to the side frame in the longitudinal direction of the vehicle body. A guide rail is provided along the The engine is supported on the mount base with The lock member is sheared when forward inertia is applied to the engine. It is characterized by being fixed.

[0023] Therefore, when excessive inertial force is applied to the engine forward, the engine will move forward. This will minimize damage to the cabin and further improve safety. In addition, it is structurally simple and can be provided at low cost.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of an engine mount showing an embodiment of this invention.

FIG. 2 is a cross-sectional view of the roller mounting bracket of the same embodiment in an attached state.

FIG. 3 is a perspective view of the roller mounting fitting of the same embodiment.

FIG. 4 is a front view of the roller mounting fitting of the same embodiment.

FIG. 5 is a partially cutaway side view of a typical cab-over vehicle.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11... Side frame, 13... Guide rail, 19... Engine, 21... Mount base, 24... Guide roller,
25...Rock bolt.

Claims (1)

[Scope of utility model registration request] Claim 1. An engine mount structure for a cab-over vehicle, which has a driver's seat in the upper part of a floor panel of a cabin, and an engine mounted on a side frame in the lower part of the floor panel, wherein A mount base that has a guide rail provided along the direction, a mount base that has a guide roller that can freely roll on the guide rail and supports the engine so as to be movable forward, and that fixes the mount base and the side frame. An engine mount structure for a cab-over vehicle, comprising a locking member that is sheared when excessive inertia force is applied forward to the engine.