JP3666554B2 - Front body structure of cab - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cab front body structure.
[0002]
[Prior art]
The front portion of the cab 1 of a cab over type vehicle as shown in FIG. 5 is constituted by a front panel 2, a front garnish 3, a radiator grill 4, and the like. As shown in FIG. 6, the front panel 2 has a structure in which the upper part is integrated with the window outer panel 5 to form the wind rail 7 in cooperation with the window inner panel 6, and the lower end is welded to the front end of the front end cross 8. Alternatively, as shown in FIG. 7, there is a structure in which the upper end of the front panel 2 is welded to the lower end of the wind rail 9 and the lower end is welded to the front end of the front end cross 8.
[0003]
In the structure shown in FIG. 6, the wiper system 13 and the air conditioner 14 are accommodated between the front panel 2 and the instrument panel assembly 12. In the structure shown in FIG. 7, the window outer panel 10 of the wind rail 9 has an opening 10 a. The wiper system 13 is accommodated in the window rail 9, and the air conditioner 14 is accommodated between the front panel 2 and the instrument panel assembly 12.
[0004]
[Problems to be solved by the invention]
However, in the structure shown in FIG. 6, it is necessary to remove the instrument panel assembly 12 when maintaining the wiper system 13 and the air conditioner 14 or replacing the heater core of the air conditioner 14. In the structure shown in FIG. 7, the wiper system 13 can be removed from the opening 10a of the wind rail 9 to the outside of the passenger compartment. However, when the heater core or the like is to be maintained, the instrument panel assembly 12 is removed. It is necessary to do. For this reason, in any structure, there exists a problem that maintainability and assembly property are bad.
[0005]
Therefore, an object of the present invention is to provide a front body structure of a cab designed to improve assemblability and maintainability of a wiper system, an air conditioner and the like housed in the front body portion of the cab.
[0006]
[Means for Solving the Problems]
To achieve the above object, in claim 1 of the present invention, the openings through the vehicle interior and with the front body portion of the cab is provided, removably attaching the front panel that covers the entire opening. Either one of a concave groove or a ridge is formed on the outer peripheral portion of the opening of the front body part over the entire circumference, and the ridge or the concave groove that overlaps along the concave groove or the ridge on the front panel. and the other is formed, the front body portion or by interposing a sealer agent concave groove formed in one of the opening periphery of the front panel seal and detachably fixing. This makes it possible to install and remove the wiper system and air conditioner that are housed between the front body of the cab, that is, between the front panel and the instrument panel, from the outside of the passenger compartment, improving assembly and maintainability. Is planned.
Then, by providing a reinforcing rib by bending at least one of the outer peripheral edge of the concave groove or convex portion of the edge or the front panel of the peripheral portion of the opening in the U-shaped cross-section over the entire circumference The strength of the opening and the front panel is improved.
Further, the sealer is welded and fixed to the concave groove, and the surface is cured to form a packing. As a result, the sealing quality is stabilized.
[0007]
In the invention of claim 2, the front body portion of the cab is provided with an opening communicating with the vehicle interior, and the front panel covering the entire opening is detachably mounted. Either one of a concave groove or a ridge is formed on the outer peripheral portion of the opening of the front body part over the entire circumference, and the ridge or the concave groove that overlaps along the concave groove or the ridge on the front panel. and the other is formed, the front body portion or by interposing a sealer agent concave groove formed in one of the opening periphery of the front panel seal and detachably fixing. This makes it possible to install and remove the wiper system and air conditioner that are housed between the front body of the cab, that is, between the front panel and the instrument panel, from the outside of the passenger compartment, improving assembly and maintainability. Is planned.
Then, by providing a reinforcing rib by bending at least one of the outer peripheral edge of the concave groove or convex portion of the edge or the front panel of the peripheral portion of the opening in the U-shaped cross-section over the entire circumference The strength of the opening and the front panel is improved.
Moreover, it is uniformly sealed substantially over the entire circumference of the interposed removable the fixed and the bolt fastening the sealer agent of the front panel and the front body portion.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.
Figure 1 shows a schematic perspective view of the cab according to an embodiment of the present invention, FIGS. 2 and 3 show a cross-sectional view taken along the arrow line II-II and III-III in FIG.
As shown in FIGS. 1 to 3, the front body portion 21 of the cab 20 includes an upper window rail 22, front left and right front pillars 23, a lower front end cross member 24, a front panel 26, a garnish 27, a grill 28, The corner panel 29 is configured.
[0009]
As shown in FIG. 2 and FIG. 3, the front body portion 21 has a large front surface and can communicate with the vehicle interior. Opening 30, and the lower end 22a of the upper window rail 22, the front end 23a of the left and right front pillars 23 are formed is surrounded by the front end 24a of the front end cross member 24. Further, a sealing bracket 25 is fixed to the front end 24 a of the front end cross member 24. Bolt insertion holes are formed at appropriate intervals on the peripheral edge of the opening 30 and a nut 31 is welded to the back side.
[0010]
A concave groove 33 is formed on the peripheral edge of the opening 30 over the entire circumference. That is, the bottom end 22a of the wind rail 22, the front end 23a of the left and right front pillars 23, and the bracket 25 of the front end cross member 24 are formed with recessed grooves 22b, 23b, 25b on the outside of the nut 31, respectively. The concave grooves are continuously formed as the concave grooves 33. The concave groove 33 is filled with a body sealer 34 as a seal member over the entire circumference. The concave groove 33 has a function as a reinforcing rib of the opening 30 and the strength of the peripheral edge of the opening 30 is improved.
[0011]
The front panel 26 closes the opening 30 and is detachably attached. On the peripheral edge of the front panel 26, a ridge 26a is formed corresponding to the concave groove 33 of the opening 30 over the entire periphery, and the outer peripheral edge 26b is bent into a substantially U-shaped cross section to be reinforced. It is referred to as a rib (hereinafter referred to as “reinforcing rib 26b”). Bolt insertion holes are drilled inside the protruding line portions 26a in correspondence with the respective bolt insertion holes provided at the peripheral edge of the opening 30.
[0012]
FIG. 4 is an explanatory diagram when the body sealer 34 is filled in the concave groove 33 of the opening 30. First, after the cab 20 is undercoated (electrodeposition) (a), a body sealer 34 is applied to the concave groove 33 (b). Next, the body sealer 34 is flattened with a spatula, the surface is masked with a masking tape 35 (c), the top coat 36 is applied and baked, and then the masking tape tape 35 is removed (d). The body sealer 34 is welded and fixed to the concave groove 33 by the baking temperature of the top coat, and the surface 34a is cured to form a packing. As a result, the quality of the sealing is stabilized, and protrusion or the like when the front panel 26 described later is attached or detached is prevented, thereby improving workability.
[0013]
Further, as shown in FIG. 4 (e), the front panel 26 is overcoated with the front panel 26 temporarily supported by the opening 30 of the front body 21 so that the surface of the body sealer 34 becomes a shadow of the outer peripheral portion of the front panel 26. You may make it paint. As a result, the top coat can be applied to the other parts while preventing the top coat from adhering to the surface of the body sealer 34 as much as possible, so that the masking work and the removal work by the masking tape 35 are omitted. can do. On the surface of the body sealer 34, it is preferable that the topcoat of the paint does not adhere, practical problem is not as long as adhering wraps around the outer periphery of the front panel 26.
[0014]
The wiper system, the air conditioner, and the like are accommodated in the front body portion 21 of the cab 20 through the opening 30, and the wiper system 13 is attached to the lower position of the wind rail 22 as indicated by a two-dot chain line. , Attached to the rear of the opening 30. An instrument panel 37 (FIG. 1) is attached to the indoor side. Thereby, the assembly | attachment property of the wiper system 13, the air conditioner 14, etc. is improved.
[0015]
The front panel 26 is attached to the outside of the opening 30, the ridge 26 a is superposed on the concave groove 33 of the opening 30, and is fixed to the nut 31 with a bolt 39. In this state, the ridge 26a of the front panel 26 is pressed against the surface 34a of the body sealer 34 and sealed. Ridges 26a, by being formed continuously over the entire periphery of the front panel 26, the rigidity of the seal portion is achieved, in a substantially uniform over the entire circumference, is and well sealed.
[0016]
The opening 30 is improved in rigidity at the peripheral edge by the concave groove 33, and the front panel 26 is improved in rigidity by the protruding line portion 26 a and the reinforcing rib 26 b, so that the front body portion 21 of the cab 20 is improved. The rigidity is improved.
After the front panel 26 is mounted and fixed in the opening 30, a garnish 27 is mounted between the upper portion of the front panel 26 and the wind rail 22, and a grill 28 is mounted on the lower portion of the front panel 26 (FIG. 2). Corner panels 29 are mounted on both sides of the panel 26 (FIG. 3).
[0017]
Wiper system 13, when servicing the air conditioner 14, garnish 27, remove the grill 28 and the left and right corner panel 29, remove the front panel 26 by removing the bolts 39. Thus, the opening 30 of the front body portion 21 is opened, it can be done from the outside of the passenger compartment of the wiper system 13 and the air conditioner 14 exchange servicing or heater core or the like easily.
[0018]
Incidentally, in the above embodiment, the concave groove 33 formed in the periphery of the opening 30, has formed the convex portions 26a to polymerize in a concave groove 33 on the front panel 26, the opening to the contrary 30 A ridge portion may be formed on the peripheral edge portion, and a concave groove may be formed on the front panel 26 side.
[0019]
【The invention's effect】
According to the present invention, the wiper system and the air conditioner housed in the front body portion of the cab are provided by providing the front body portion with an opening communicating with the vehicle interior and removably attaching the front panel covering the opening. Etc. can be assembled and removed from the outside of the passenger compartment, so that the ease of assembly and maintainability can be improved, and the workability can be improved. Further, the opening of the front body part and the front panel are reinforced, and the sealing performance is improved . In addition, the sealing quality of the sealer provided between the opening and the front panel is stabilized, and the protrusion from the concave groove is prevented, improving the workability and appearance of the front panel. Is planned.
[0020]
In the invention of claim 2, the wiper system and the air conditioner housed in the front body part of the cab are provided by providing the front body part with an opening communicating with the vehicle interior and detachably attaching a front panel covering the opening. The device and the like can be assembled and removed from the outside of the passenger compartment, so that the assemblability and maintainability can be improved, and the workability can be improved. Further, the opening of the front body part and the front panel are reinforced, and the sealing performance is improved. Furthermore, it is possible to seal the interposed removable the fixed and, to substantially over the entire circumference by a bolt uniformly and favorably the sealer material of the front panel and the front body portion.
[Brief description of the drawings]
FIG. 1 is a perspective view of a front body structure of a cab according to the present invention.
2 is a cross-sectional view taken along the line II-II in FIG.
3 is a cross-sectional view taken along line III-III in FIG.
4 is an explanatory diagram when a body sealer 34 is filled in a concave groove 33 in FIG. 2; FIG.
FIG. 5 is a front view of a cab having a conventional body structure.
6 is a cross-sectional view taken along arrows VI-VI in FIG.
FIG. 7 is a cross-sectional view showing another structure of a conventional cab front part.
[Explanation of symbols]
20 Cab 21 Front body part 26 Front panel 26a Convex part 26b Reinforcing rib 30 Opening part 33 Concave groove 34 Body sealer (sealant)

Claims (2)

A front body portion having an opening portion provided in a front portion of the cab and communicating with the vehicle interior, and having either one of a concave groove or a ridge portion formed over the entire circumference in the outer peripheral portion of the opening portion;
A front panel that covers the entire opening and has either the convex groove or the concave groove that overlaps along the concave groove or the convex groove, and
A sealer filled in a concave groove formed on either the front panel or the opening outer periphery of the front body part,
At least one of the outer peripheral edge of the concave groove or convex portion of the edge or the front panel of the peripheral portion of the opening with detachably secured by interposing the sealer agent said front panel to said front body portion A front body of a cab characterized in that a reinforcing rib formed by bending one side into a U-shaped cross section over the entire circumference is provided , and the sealer is welded and fixed to the concave groove and the surface is hardened. Construction. A front body portion having an opening provided in the front portion of the cab and communicating with the vehicle interior, and having either one of a concave groove or a ridge formed on the entire outer periphery of the opening;
A front panel that covers the entire opening and has either the convex groove or the concave groove that overlaps along the concave groove or the convex groove, and
A sealer agent filled in a concave groove formed on either the front panel or the opening outer periphery of the front body part,
The front panel is detachably fixed to the front body portion with the sealer interposed therebetween, and at least one of an edge of an outer peripheral portion of the opening or an outer peripheral edge of a concave groove or a ridge of the front panel A reinforcing rib formed by bending one side into a U-shaped cross section over the entire circumference is provided, and the detachable fixing of the front panel and the front body part through the sealant is performed by bolt fastening. The front body structure of the cab that features

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