JPH0238829Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vibration-proof support structure for an intake duct.

In cab-over type vehicles, a so-called shunorkel-type intake duct that is attached to the outer wall of the rear part of the cab is sometimes adopted, but when such an intake duct is adopted, in order to prevent vibration, Conventionally, the intake duct has been fixed to the rear outer wall surface of the cab with bolts, nuts, etc. via an elastic member such as rubber. However, when such a vibration-proof support structure for an intake duct is used, there is a problem in that a large number of tightening points are required, making assembly work cumbersome.

The present invention was devised in view of the above, and includes an intake duct which is arranged near the rear outer wall of the cab with a desired space, extends vertically, and has its lower end communicated with the engine via a bellows member. a first bracket having one end fixed to one of the upper part of the duct and the upper part of the cab and the other end fixed to an elastic material; a second bracket comprising a mounting portion that abuts the fixed surface formed by the second bracket and a connecting portion connected to the first bracket via the elastic material; a screw member that attaches the mounting portion to the fixed surface; A first locking member fixed to the lower rear of the cab and having one end extending toward the intake duct; a first locking member fixed near the lower end of the intake duct and one end extending above the first locking member toward the rear of the cab; A second locking member that once extends and faces the first locking member, a hole formed in the facing surface of either one of the locking members, and a hole erected in the facing surface of the other of the locking members. A pin extends in the vertical direction and is locked in the hole, and an elastic member is interposed between the facing surfaces of both the locking members and is fixed to only one of the locking members and abuts the other. It is something.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 1 to 3 show an embodiment of the present invention. In Fig. 1, reference numeral 2 denotes a chassis frame, 4 a cab pivotally supported on the same frame by a pin 6, and 8 a bridge-type subframe that is fixed to the frame 2 and supports the rear of the cab 4. , 12 is an air cleaner supported by the chassis frame 2, 14 is a frame-side intake pipe connected to the air cleaner, and 16 is an intake supported on the rear outer wall surface of the cab 4 via a fixing part 22 and a locking part 24. The duct 18 is an outside air intake nozzle attached to the upper end of the intake duct 16, and the reference numeral 20 is a rubber boot as a bellows member attached to the lower end of the intake duct 16. The fixing part 22 has a structure as shown in FIG. 2, and in FIG.
Bolt 2 formed in a letter shape and having one side as a threaded member
8 and 30 are brackets fixed to the rear wall surface of the cab 4; 32 is a first elastic member formed by baking an elastic material such as rubber between two disks and having bolts protrude from the disks; 34 is a first elastic member; The nut 36 fixing the elastic member 32 of 1 to the other side of the bracket 26 is formed in an L shape, and one side is connected to the bolt 3.
8 and 40, and the other side is fixed to the first elastic member 32 with a nut 42. Further, the locking portion 24 has a structure as shown in FIG. 3, and in FIG.
is formed in an L-shape, and one side is fixed to the rear wall surface of the cab 4 with bolts 46, 48, and a second elastic member 50, which is formed in a cylindrical shape and has an engagement hole 58 in the middle part, is baked onto the upper surface of the other side. A bracket 52 serving as a first locking member is formed in an L-shape, and is fixed to the intake duct 16 with bolts 54 and 56 on one side, and is provided on the other side to protrude downward to engage with the engagement hole 58. This is a bracket as a second locking member having a fixed pin 60.

According to the above configuration, the intake duct 16 is connected to the fixed part 2.
2 and the locking part 24, and the locking part 24 has an insertion type structure using a pin 60, which has the effect of significantly streamlining the assembly work compared to the conventional method. The elastic member 32 and the second elastic member 50 can provide the conventional vibration damping effect.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention;
The figure is an enlarged view of the fixing part 22 shown in FIG. 1, and FIG. 3 is an enlarged view of the locking part 24 shown in FIG. 4... Cab, 16... Intake duct, 22...
Fixing part, 24...Locking part, 32...First elastic member, 50... Second elastic member.

Claims (1)

[Scope of utility model registration request] A suction duct is disposed near the rear outer wall of the cab with a desired space, extends vertically, and has a lower end communicating with the engine via a bellows member, one end of which is connected to the upper part of the duct and the upper part of the cab. a first bracket fixed to one end of the bracket and fixed to an elastic member at the other end; a mounting portion that abuts a fixed surface formed on the other of the upper part of the duct and the upper part of the cab so as to be spaced apart from the elastic member; and a connecting portion connected to the first bracket via the elastic material, a screw member for attaching the mounting portion to the fixing surface, and a second bracket fixed to the lower rear portion of the cab and having one end connected to the intake air intake. a first locking member extending toward the duct; fixed near the lower end of the intake duct; one end extending above the first locking member toward the rear of the cab and facing the first locking member; a second locking member, a hole formed in one of the opposing surfaces of the two locking members; a second locking member that is erected on the opposite surface of the other of the two locking members, extends in the vertical direction, and is locked in the hole; A vibration-proof support structure for an intake duct, comprising a pin, and an elastic member interposed between opposing surfaces of both of the locking members, fixed to only one of the locking members, and abutted to the other.