JP2022149528A - Insulator and method of assembling the same - Google Patents

Abstract

To provide an insulator and method of assembling the insulator which can restrain work efficiency at assembly process to a floor panel and a back panel and shield performance of heat and sound from being deteriorated.SOLUTION: An insulator 13 comprises a rear insulator 14 which is disposed along rear face of a back panel 3 by being inserted into a slot 6 provided on rear face of the back panel 3 of a cab 2 and a front insulator 15 which is formed in one piece on the rear insulator 14 and is disposed along underside of a floor panel 5 of the cab 2. The insulator 13 includes a fracture groove 16 extensively provided along a vehicle width direction on a portion around which the rear insulator 14 and the front insulator 15 continue mutually. The insulator 13 includes L shaped cross-sectional shape by being folded down at the fracture groove 16 when assembling it with the back panel 3 and the floor panel 5.SELECTED DRAWING: Figure 6

Description

TECHNICAL FIELD The present disclosure relates to a vehicle insulator and an assembly method thereof.

Patent Literature 1 discloses an insulator arranged along the lower surface of the floor panel of the cab. The insulator is a shielding plate that reduces the transmission of heat and sound from the engine to the cab.

JP 2017-030427 A

In the above-described conventional L-shaped insulator, when manually assembling to the floor panel and the back panel, the working efficiency is poor because the assembling part cannot be visually observed, and the insulator is assembled to the floor panel or the back panel first. The notch needs to be large to avoid interference with other parts such as the mounted rods, which reduces the heat and sound shielding performance.

Accordingly, an object of the present disclosure is to provide an insulator and a method of assembling the same that can suppress a decrease in work efficiency and a decrease in heat and sound shielding performance in the process of assembling the floor panel and the back panel.

In order to achieve the above object, the insulator of the first aspect of the present disclosure includes: a rear insulator arranged along the rear surface of the back panel by being inserted into a slot provided on the rear surface of the back panel of the cab; a front insulator formed integrally with the rear insulator and arranged along the lower surface of the floor panel of the cab, the insulator extending along the vehicle width direction at a portion where the rear insulator and the front insulator are continuous with each other; It has a folding groove provided on the back panel and the floor panel, and has an L-shaped cross section by being bent at the folding groove when assembled to the back panel and the floor panel.

In the above configuration, the rear insulator is inserted into the slot provided on the rear surface of the back panel of the cab, and then bent at the folding groove. Visual observation of attached parts is possible. Therefore, it is possible to suppress a decrease in work efficiency in the assembly process to the floor panel and the back panel. In addition, compared to an insulator originally having an L-shaped cross-section, it is possible to reduce the size of the notch for avoiding interference with other parts previously assembled to the floor panel and back panel. For this reason, it is possible to suppress deterioration in heat and sound shielding performance.

A second aspect of the present disclosure is a method of assembling the insulator of the first aspect to a back panel and a floor panel, comprising a step of inserting the rear insulator into the slot, and bending the insulator into an L-shaped cross section by folding along the folding groove. and a step of.

In the above configuration, the rear insulator is inserted into the slot provided on the rear surface of the back panel of the cab, and then bent at the folding groove. Visual observation of attached parts is possible. Therefore, it is possible to suppress a decrease in work efficiency in the assembly process to the floor panel and the back panel. In addition, compared to the case of assembling an insulator originally having an L-shaped cross section, it is possible to reduce the notch in the insulator in order to avoid interference with other parts previously assembled to the floor panel or back panel. It becomes possible. For this reason, it is possible to suppress deterioration in heat and sound shielding performance.

Advantageous Effects of Invention According to the present disclosure, it is possible to suppress a decrease in work efficiency and a decrease in heat and sound shielding performance in the process of assembling to the floor panel and back panel.

1 is an external perspective view of a cab that employs an insulator assembly structure according to an embodiment of the present invention, viewed from the rear underfloor; FIG. FIG. 2 is a cross-sectional view of the rear portion of the cab as viewed in the direction of arrow II in FIG. 1, omitting the insulator. FIG. 4 is an external perspective view showing a state before the insulator is attached to the cab; FIG. 4 is a sectional view of the insulator viewed in the direction of arrow IV in FIG. 3, where (a) shows the state before bending and (b) shows the state after bending. It is a schematic diagram showing a state of the assembly work of the insulator. FIG. 2 is a cross-sectional view of the rear part of the cab as viewed in the direction of arrow VI in FIG. 1, where (a) shows the state before the insulator is installed, (b) shows the state during the insulator installation, and (c) shows the insulator installed. , respectively.

An embodiment of the present invention will be described below with reference to the drawings. In the following description, the front-rear direction means the front-rear direction of the vehicle 1, and the left-right direction means the left-right direction when the vehicle 1 faces forward. Arrow FR in the drawing indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction.

A vehicle 1 shown in FIGS. 1 and 2 is a cab-over type truck in which an engine room (not shown) is positioned below a cab 2 . The cab 2 is tiltably supported forward by a front cab mount (not shown) and a rear cab mount (not shown) attached to a front portion of a vehicle body frame (not shown).

The cab 2 has a substantially box-like shape and defines a compartment inside. The cab 2 has a dash panel (not shown), a back panel 3, a pair of left and right side panels 4, a roof panel (not shown), a floor panel 5, and the like. These panels are made of high-strength materials such as steel plates, and are formed by press forming. These panels are also joined by spot welding or the like.

The back panel 3 is a substantially rectangular plate-like body. A slot 6 is provided in the rear surface of the back panel 3 . The slot 6 has an opening 7 extending in the vehicle width direction at the lower end of the rear surface of the back panel 3 . The slot 6 extends upward along the rear surface of the back panel 3 from the opening 7 and has a rearwardly bent portion 8 at its upper end.

The floor panel 5 is a substantially rectangular plate-like body, and has a center floor panel portion 9 , a pair of left and right floor side members 10 , and a pair of left and right side floor panel portions 11 . These are formed by press working or the like.

The center floor panel portion 9 is formed in the center in the vehicle width direction and extends from the front end to the rear end of the floor panel 5 . The floor side members 10 are formed as a pair on the left and right sides of the center floor panel portion 9 and extend from the front end to the rear end of the floor panel 5 . The floor side member 10 is a floor underframe having a U-shaped cross section and protruding downward. A pair of left and right side floor panel portions 11 are formed on both sides in the vehicle width direction with the center floor panel portion 9 and a pair of left and right floor side members 10 interposed therebetween, and extend from the front end to the rear end of the floor panel 5 .

A pair of left and right rods 12 are attached to the rear and lower sides of the back panel 3 on both sides in the vehicle width direction.

An insulator 13 is arranged behind the back panel 3 and below the floor panel 5 along the rear surface of the back panel 3 and the lower surface of the center floor panel portion 9 . The insulator 13 shown in FIGS. 3 and 4 is a heat-insulating and sound-absorbing material in which a plate material made of fiber or the like is covered with aluminum foil or the like, and has a rear insulator 14 and a front insulator 15 . The rear insulator 14 is formed in a substantially rectangular shape, and has a rib 14 a provided along the vehicle width direction and extending rearward at the upper edge opposite to the front insulator 15 . After that, the insulator 14 is inserted into the slot 6 (see FIG. 6(a)) provided on the rear surface of the back panel 3 (see FIG. 6(a)) from the side of the upper edge having the rib 14a. It is arranged along the rear surface of the panel 3 (see FIG. 6(b)). The front insulator 15 is formed integrally with the rear insulator 14 in a substantially rectangular shape and arranged along the lower surface of the floor panel 5 (see FIG. 6(c)). The insulator 13 has a bent groove 16 extending along the vehicle width direction at a portion where the rear insulator 14 and the front insulator 15 are continuous with each other, and the back panel 3 is provided on both sides of the bent groove 16 in the vehicle width direction. (See FIG. 6(a)) and has a pair of left and right cutouts 17 for avoiding interference with the rod 12 during assembly to the floor panel 5 (see FIG. 6(c)). Also, the insulator 13 has a plurality of through holes 18 appropriately formed in the front insulator 15 . The bent groove 16 is formed thinner than other portions of the insulator 13 . The insulator 13 has an L-shaped cross-section by being bent at the folding groove 16 when manually assembled to the back panel 3 (see FIG. 6(a)) and the floor panel 5 (see FIG. 6(c)). It is fixed to the floor panel 5 (see FIG. 1) with a plurality of clips 19 (see FIG. 1) using a plurality of through holes 18 . The insulator 13 blocks entry of heat and sound generated by the engine (not shown) into the passenger compartment.

Next, the work for assembling the insulator 13 to the back panel 3 and the floor panel 5 will be described.

First, as shown in FIG. 5, the cab 2 is tilted forward 90 degrees. After that, as shown in FIG. 6A, the rear insulator 14 is inserted into the slot 6 provided on the rear surface of the back panel 3 from the side of the upper edge having the rib 14a while avoiding interference with the rod 12. . Thereby, as shown in FIG. 6B, the rear insulator 14 is arranged along the rear surface of the back panel 3, and the rear insulator 14 is positioned by hooking the rib 14a on the bent portion 8. As shown in FIG. After that, as shown in FIG. 6C, the front insulator 15 is arranged along the lower surface of the floor panel 5 by folding the insulator 13 along the folding groove 16 . As a result, the insulator 13 has an L-shaped cross section. Thereafter, the insulator 13 is fixed to the floor panel 5 by passing the shaft portion (not shown) of the clip 19 (see FIG. 1) through a plurality of through holes 18 (see FIG. 3) appropriately formed in the front insulator 15. .

According to this embodiment, after the rear insulator 14 is inserted into the slot 6 provided on the rear surface of the back panel 3 of the cab 2, the insulator 13 is bent at the folding groove 16, so that the floor panel 5 and the back panel are bent. During manual assembly to 3, visual inspection of the assembled part is possible. Therefore, it is possible to suppress a decrease in work efficiency in the assembly process to the floor panel 5 and the back panel 3 . In addition, the notch 17 for avoiding interference with other parts (for example, the rod 12) previously assembled to the floor panel 5 and the back panel 3 is made smaller than the insulator originally having an L-shaped cross section. It becomes possible to For this reason, it is possible to suppress deterioration in heat and sound shielding performance.

Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and can be appropriately modified without departing from the scope of the present invention. In other words, all other embodiments, examples, operation techniques, etc. made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention.

INDUSTRIAL APPLICABILITY The present invention is applicable to vehicles to which insulators are attached.

1 vehicle 2 cab 3 back panel 4 side panel 5 floor panel 6 slot 7 opening 8 bent portion 9 center floor panel portion 10 floor side member 11 side floor panel portion 12 rod 13 insulator 14 rear insulator 14a rib 15 front insulator 16 fold Groove 17 Notch 18 Through hole 19 Clip

Claims (2)

a rear insulator arranged along the rear surface of the back panel by being inserted into a slot provided in the back panel of the cab; and a rear insulator integrally formed with the rear insulator and arranged along the lower surface of the floor panel of the cab. an insulator comprising: a front insulator;
A bent groove extending along the vehicle width direction is provided at a portion where the rear insulator and the front insulator are continuous with each other,
An insulator that has an L-shaped cross-section by being bent at the folding groove when assembled to the back panel and the floor panel. A method for assembling the insulator according to claim 1 to the back panel and the floor panel, comprising:
inserting the rear insulator into the slot;
A method of assembling an insulator, comprising a step of bending the insulator along the folding groove to form an L-shaped cross section.

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