JP2020100217A - Cabin structure of construction machine and method for manufacturing the same - Google Patents

Abstract

To provide a cabin structure of a construction machine and a method for manufacturing the same, which can improve assemblability of interior trim parts 19 such as an instrumental panel 19a, a seat 19b, and an air conditioner 19c.SOLUTION: A cabin structure of a construction machine includes: a coated cab frame body 3 provided with front pillars 4R and 4L disposed extending vertically at the right and left sides on the front portion of a floor panel 8, rear panels 5R and 5L disposed extending vertically at the right and left sides on the rear portion of the floor panel 8, a center pillar 6 for one door disposed between the front pillar 4L as one of the right and left front pillars and the rear pillar 5L as one of the right and left rear pillars, and a large opening 9 formed between the front pillar 4R as the other of the right and left front pillars and the rear pillar 5R as the other of the right and left rear pillars without having the center pillar; and a coated side panel 7 attached to the large opening 9 between the front pillar 4R and the rear pillar 5R on the other door side of the coated cab frame body 3. The coated side panel 7 is attached to the large opening 9 of the coated cab frame body 3 with bolts, rivets, or an adhesive.SELECTED DRAWING: Figure 3

Description

The present invention relates to a cabin structure of a construction machine and a manufacturing method thereof, and more particularly to a cabin structure of a construction machine and a manufacturing method thereof capable of improving the assembling property of interior parts such as instrument panel, seat, and air conditioner.

As shown in FIGS. 1(a) and 1(b), in the cabin structure 1 of a construction machine (hydraulic excavator, wheel loader, bulldozer, dump truck, articulated dump truck, etc.), left and right in the vehicle width direction of the cab. Many types have the door 2 provided on only one of them. Therefore, as shown in FIG. 2A, on the side where the door 2 of the cab frame body 3J is provided (on the left side in the traveling direction in FIG. 2A), a door is provided between the front pillar 4L and the rear pillar 5L. The center pillar 6 is provided on the side opposite to the door of the cab frame body 3J.

Conventionally, when manufacturing a cabin structure for a construction machine, as shown in FIG. 2(a), strength is increased between the front pillar 4R and the rear pillar 5R on the side opposite to the door of the cab frame body 3J (on the right side in the traveling direction). The side panel 7J is welded as a structural member for rigidity, the cab frame body 3J to which the side panel 7J is welded is electrodeposited, and then the arrow X is applied between the front pillar 4L on the door side and the center pillar 6. As shown, the interior components such as the instrument panel, seat, and air conditioner are carried into the cab frame body 3J and assembled.

JP 2006-36002 A

However, as indicated by an arrow X in FIG. 2A, the door center pillar 6 and the front pillar 4L are openings for carrying in interior items such as instrument panels into the cab frame body 3J. The interval was narrow with respect to the size of the interior parts, and it was not said that the carry-in property was good. Further, since the distance between the center pillar 6 which is an opening for carrying in and the front pillar 4L is not wide enough to use a material handling device (cargo handling device, hereinafter a material handling device), an instrument panel, a seat, an air conditioner or the like having a certain weight. It was not possible to say that the workability was good, because it was necessary for multiple workers to lift up and carry in the interior parts.

Patent Document 1 discloses a construction machine cab structure in which a construction machine cab is divided into a front structure and a main structure, and the front structure and the main structure are fastened with bolts. ing. However, in the main structure of Document 1, center pillars are arranged between the front pillars and the rear pillars on both the left and right sides in the vehicle width direction. Therefore, in the construction machine cab structure of Document 1, the present invention aims to expand the area of the opening for carrying in interior parts such as instrument panels, seats, and air conditioners into the cab by utilizing the absence of either the left or right center pillar. Is different from the technical premise.

An object of the present invention, which was devised in view of the above circumstances, is to provide a cabin structure of a construction machine and a manufacturing method thereof, which can improve the assembling property of interior parts such as instrument panel, seat, and air conditioner.

According to the cabin structure of the construction machine according to the present invention, which was conceived to achieve the above-mentioned object, the front pillars are erected on the left and right of the front part of the floor panel, and the rear pillars are erected on the left and right of the rear part of the floor panel. A center pillar for the door is arranged between the front pillar and the rear pillar on one of the left and right sides, and there is no center pillar between the front pillar and the rear pillar on the other of the left and right sides, and a large opening is formed. Cab frame body and a painted side panel that is installed in the large opening between the front pillar and the rear pillar on the opposite door side of the painted cab frame body. Alternatively, there is provided a cabin structure for a construction machine, which is attached to a large opening of a painted cab frame body with an adhesive.

Further, according to the method for manufacturing the cabin structure of the construction machine according to the present invention, the front pillars are erected on the left and right of the front part of the floor panel, and the rear pillars are erected on the left and right of the rear part of the floor panel. The center pillar for the door is arranged between the front pillar and the rear pillar of, and the painted cab frame main body with no large center pillar between the left and right front pillars and the rear pillar is formed. After manufacturing, the interior parts such as instrument panel, seat, and air conditioner were carried into the cab frame body through the large opening between the front pillar and the rear pillar on the side opposite to the door of this painted cab frame body and assembled. After that, the painted side panel is attached to the large opening of the painted cab frame body where the interior parts are assembled with bolts, rivets or adhesive, and the cabin structure of the construction machine. A method of manufacturing the same is provided.

Further, according to the method for manufacturing the cabin structure of the construction machine according to the present invention, the front pillars are erected on the left and right of the front part of the floor panel, and the rear pillars are erected on the left and right of the rear part of the floor panel. The center frame for the door is arranged between the front pillar and the rear pillar of the, and the cab frame main body in which the center pillar does not exist between the front pillar and the rear pillar on the other side of the left and right and the large opening is formed is manufactured in advance. , When the cab frame body is submerged in a paint aqueous solution for electrodeposition coating or a cleaning solution and pulled up, the cab frame body is tilted so that the large opening is downward, and the cab frame body is stored in the raised cab frame floor panel. The paint solution or cleaning liquid is dropped from the large opening, and interior parts such as instrument panels, seats, and air conditioners are transferred to the cab frame main body through the large opening between the front pillar and the rear pillar on the side opposite to the door of the cab frame main body, which is thus coated. After carrying it inside and assembling it, the painted side panel is attached to the large opening of the painted cab frame body where the interior parts are assembled with bolts, rivets or adhesive. A method for manufacturing a cabin structure of a construction machine is provided.

According to the present invention, the following effects can be exhibited.
(1) Assemble the painted side panel into the large opening between the front pillar and the rear pillar on the opposite side of the painted cab frame body before mounting the painted side panel with bolts, rivets or adhesives. Since the interior components such as instrument panel, seat, and air conditioner can be carried into the cab frame body through the large opening, the carry-in property of the interior components such as the instrument panel can be improved and the carry-in time can be shortened.
(2) A so-called material handling device is used because the distance between the front pillar and the rear pillar, which is an opening for carrying in interior parts such as instrument panels, is wider than the distance between the front pillar and the center pillar, which are conventionally openings for carrying in. Since the interior components such as the instrument panel can be carried into the cab frame, the workability when the interior components such as the instrument panel having a constant weight are carried into the cab frame body is improved, and the working time can be shortened.
(3) After assembling the interior components such as instrument panel, seat, and air conditioner so as to be properly assembled outside the cab frame body to form a sub-assembly product of a size that can pass through a large opening, the sub-assembly product is a so-called material handling device. Since it can be carried into the inside of the cab frame body through a large opening when used, workability is improved.
(4) Since the painted side panel is attached to the enlarged opening of the painted cab frame main body by bolts, rivets or adhesive instead of welding, it does not fit in the cab frame main body in the cabin structure after installation. The coating surface at the joint with the side panel is not damaged by welding heat, and the quality and assembly of the completed cabin structure can both be achieved.
(5) When electrodepositing the cab frame body before mounting the side panel, tilt the cab frame so that the side where the center pillar does not exist between the front pillar and the rear pillar and the large opening is formed is downward. In such a posture, the paint solution or the cleaning liquid stored in the lifted cab frame floor panel can be easily drained from the large opening by submerging the paint solution for electrodeposition coating or the cleaning liquid and pulling it up. Therefore, the time for running out of liquid can be shortened, and so-called tact time can be shortened. Further, in each step of electrodeposition coating, the amount of liquid brought from the previous tank to the current tank and from the current tank to the next tank can be reduced, and the quality of the coating is improved.

It is an external view of the cabin structure of a construction machine, (a) is a perspective view of a cabin structure, (b) is the perspective view which looked at the cabin structure from the opposite direction. (A) is explanatory drawing which shows the cabin structure of the construction machine which concerns on a prior art example, and its manufacturing method, (b) is explanatory drawing which shows the cabin structure of the construction machine which concerns on one Embodiment of this invention, and its manufacturing method. It is explanatory drawing which shows the cabin structure of the construction machine which concerns on one Embodiment of this invention, and its manufacturing method. It is another explanatory view showing the cabin structure of the construction machine and its manufacturing method concerning one embodiment of the present invention. It is explanatory drawing which shows a mode that the cab frame main body of the cabin structure of the construction machine which concerns on one Embodiment of this invention is painted, (a) is a mode that the cab frame main body was submerged in the paint aqueous solution or cleaning liquid for electrodeposition coating. FIG. 3B is an explanatory view showing a state in which the cab frame main body is pulled up from a paint aqueous solution or a cleaning liquid for electrodeposition coating. It is explanatory drawing which shows the process of carrying out electrodeposition coating of the cab frame main body of the cabin structure of the construction machine which concerns on one Embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the invention unless otherwise specified. In this specification and the drawings, elements having substantially the same function and configuration are denoted by the same reference numerals to omit redundant description, and elements not directly related to the present invention are omitted. To do.

(Cabin structure of construction machinery)
As shown in FIG. 3, in a cabin structure 1 for a construction machine according to an embodiment of the present invention, front pillars 4L, 4R are erected on the left and right of a front portion of a floor panel 8 and the left and right of a rear portion of the floor panel 8. Rear pillars 5L and 5R are erected on the left and right, and a center pillar 6 for a door is disposed between one of the left and right front pillars 4L and the rear pillar 5L (the left side in the traveling direction in FIG. 3), and the left and right (the traveling direction). The cab frame main body 3 that has been painted, in which there is no center pillar between the front pillar 4R and the rear pillar 5R (on the right side), and the large opening 9 is formed, and the front pillar on the side opposite the door of the cab frame main body 3 that has been painted 4R and a rear pillar 5R, and a painted side panel 7 that is mounted in a large opening 9 and the painted side panel 7 is a cab frame body 3 that is painted by a bolt, a rivet or an adhesive. It is attached to the large opening of. Hereinafter, each component will be described.

(Cab frame body 3)
As shown in FIGS. 2(b) and 3, the cab frame main body is 3, a floor panel 8 in which floor rails 8b are attached to four sides of a rectangular plate 8a, and the floor panel 8 is installed upright on the left and right sides of the front portion. Front pillars 4L, 4R, rear pillars 5L, 5R standing on the left and right of the rear part of the floor panel 8, roof rails 10L, 10R connecting the front pillars 4L, 4R and rear pillars 5L, 5R, and left and right roof rails. 10L and 10R, a ceiling plate 11 installed between the left and right front pillars 4L and 4R, a front panel 12 attached to the lower part, and a rear panel 13 installed below the left and right rear pillars 5L and 5R. It has and.

Further, the cab frame main body 3 is a center pillar for a door that is erected on the floor panel 8 so as to be positioned between one of the left and right front pillars 4L and the rear pillar 5L (left side in the traveling direction in FIG. 3). 6 and a large opening 9 defined by the front pillar 4R, the rear pillar 5R, the roof rail 10R, and the floor rail 8b on the other left and right (opposite door side), and between the center pillar 6 and the rear pillar 5L on the door side. The rear side panel 14 is attached. The cab frame body 3 is formed by welding the components such as the floor panel 8, the front pillars 4L, 4R, and the rear pillars 5L, 5R, and is in a state of being coated by the electrodeposition coating described later.

The cab frame main body 3 has required strength and rigidity (for example, the side panel 7 shown in FIG. 3) not mounted in the large opening 9 and the door 2 not mounted between the front pillar 4L and the center pillar 6. ROPS standard and FOPS standard) are secured. ROPS (Roll Over Protective Struture) is a standard for a driver's protective structure during a fall defined by the International Organization for Standardization (ISO) for the cabin structure of construction machinery, and FOPS (Falling Object Protective Structure) is the same as ISO It is a standard for fallen object protection structure stipulated in.

In order to satisfy these standards (ROPS, FOPS, etc.), as shown in FIGS. 2(b) and 3, the connecting portions between the left and right floor rails 8b of the floor panel 8 of the cab frame body 3 and the rear pillars 5R, 5L. , Triangular reinforcing gussets 16 are attached to the connecting portions between the left and right floor rails 8b and the front pillars 4R and 4L, and the connecting portions between the left and right rear pillars 5R and 5L and the roof rail, respectively, and the large opening 9 The necessary strength and rigidity are secured without the side panel 7 being attached.

(Side panel 7)
As shown in FIG. 3, a painted side panel 7 is attached to the lower portion of the large opening 9 of the painted cab frame body 3 by a bolt, a rivet or an adhesive. The side panel 7 has a lower edge portion on the floor rail 8b of the floor panel 8, a front edge portion on the lower portion of the front pillar 4R of the cab frame body 3, and a rear edge portion on the lower portion of the rear pillar 5R. Or fixed by an adhesive. Here, although the cab frame main body 3 is already painted and the side panel 7 is also already painted, since these are joined by bolts, rivets or an adhesive instead of welding, the cab frame main body 3 and the side panel 7 are not painted. The coating surface at the joint with the panel 7 is not damaged by welding heat. The side panel 7 is painted by electrodeposition coating or the like.

Further, as shown by a broken line in FIG. 3, a control box 26, a relay box 27, etc. in which a controller, a relay and the like used for the work and operation of the construction machine are housed are provided on the inner surface (the surface on the cab side) of the side panel 7. , May be attached in advance. By using the sub-assembly as described above, the step of attaching the control box 26 and the like to the side panel 7 from the driver's cab in the subsequent step becomes unnecessary, and the assembly time can be shortened. Further, since the control box 26 and the like attached to the inner surface of the side panel 7 are hollow bodies, they also function as a soundproof box when noise outside the cab enters the cab. Here, the driver's seat 19b is arranged on one side of the side panel 7 by the auxiliary seat, and the control box 26 and the like arranged adjacent to the driver's seat 19a function as a soundproof box. As a result, noise to the driver sitting on the seat 19a can be accurately damped.

Further, as shown in FIG. 3, a side window 18 having a window frame 17 is attached to the upper portion (a portion which is not blocked by the side panel 7) of the large-sized opening 9 of the painted cab frame body 3 by an adhesive. ing. The side window 18 has an upper edge portion of the window frame 17 on the roof rail 10R of the cab frame body 3, a front edge portion of the window frame 17 on an upper portion of the front pillar 4R of the cab frame body 3, and a rear edge portion of the window frame 17. Is fixed to the upper portion of the rear pillar 5R of the cab frame body 3 and the lower edge of the window frame 17 is fixed to the upper edge of the side panel 7, respectively, and is mounted on the upper portion of the large opening 9. .. The window 18 of the side window 18 may be fixed to the cab frame body 3 or the side panel 7 with a bolt or a rivet.

The cabin structure 1 of the construction machine described above is manufactured as follows.

(Method of manufacturing cabin structure 1 of construction machine)
In the method for manufacturing the cabin structure 1 for a construction machine according to the embodiment of the present invention, as shown in FIG. 3, the above-described painted cab frame body 3 is manufactured in advance, and the coating is performed in a so-called outfitting step. The interior parts 19 such as the instrument panel 19a, the seat (suspension seat etc.) 19b, the air conditioner 19c, etc. are placed inside the cab frame body 3 through the large opening 9 between the front pillar 4R and the rear pillar 5R on the side opposite to the door of the already-formed cab frame body 3. Then, as shown in FIG. 4, the painted side panel 7 is not welded to the large opening of the painted cab frame main body 3 to which the interior parts 19 are assembled, but bolts, rivets or the like. It is attached with an adhesive.

As shown in FIG. 3, the painted cab frame body 3 has front pillars 4L and 4R standing upright on the left and right of the front part of the floor panel 8, and rear pillars 5L and 5R standing upright on the left and right of the rear part of the floor panel 8. The center pillar 6 for the door is disposed between the front pillar 4L and the rear pillar 5L on either the left or right side, and the center pillar does not exist between the other front pillar 4R and the rear pillar 5R on the left or right side, and a large opening is formed. 9 are formed. The method for manufacturing the cabin structure 1 for a construction machine according to the present invention utilizes the fact that the center pillar 6 does not exist on either the left or right side of the cab frame body 3 to utilize the interior components 19 such as the instrument panel 19a, the seat 19b, and the air conditioner 19c. This is intended to enlarge the area of the opening for carrying in the cab frame body 3.

As shown in FIG. 4, the interior components 19 such as the instrument panel 19a, the seat 19b, and the air conditioner 19c assembled in the cab frame main body 3 have the large opening 9 as shown in FIG. It is not limited to the method of loading the interior product 19 into the cab frame main body 3 through each of the components, but the interior products 19 may be individually loaded for each component, and the interior product 19 is a subassembly product of a size that can pass through the large opening 9. Then, the sub-assembly product may be carried in. Further, the components of the interior product 19 to be carried in, the sub-assembly products, and the assembly products are gripped by a so-called material handling device outside the cab frame body 3, carried into the cab frame body 3 through the large opening 9, and assembled.

(Electrodeposition coating)
FIGS. 5A and 5B show how the cab frame body 3 is electrodeposited. The cab frame main body 3 in a state in which the side panel 7 and the door 2 shown in FIG. 3 are not attached is manufactured in advance, and the cab frame main body 3 is electrically operated as shown in FIGS. 5(a) and 5(b). The coating solution stored in the floor panel 8 of the raised cab frame 3 with the posture of the cab frame main body 3 tilted so that the large opening 9 is located downward when the coating solution for coating is submerged in the cleaning solution 20 or pulled up. Alternatively, the cleaning liquid 20 is allowed to drop from the large opening 9.

That is, as shown in FIG. 2B, front pillars 4R and 4L are erected on the left and right of the front portion of the floor panel 8, and rear pillars 5R and 5L are erected on the left and right of the rear portion of the floor panel 8, whichever of the left and right is installed. A center pillar 6 for a door is arranged between one of the front pillars 4L and the rear pillar 5L, and no center pillar exists between the other front pillar 4R and the rear pillar 5R, and a large opening 9 is formed. The cab frame main body 3 is manufactured in advance, and the cab frame main body 3 is suspended from the movable carriage 21 for electrodeposition coating via a plurality of suspension wires 22, and the length of each suspension wire 22 is adjusted, The posture of the cab frame main body 3 is tilted so that the large opening 9 faces downward.

As shown in FIG. 6, the moving carriage 21 includes a moving portion 21a that moves along the rail 23 and an elevating portion 21b that is moved up and down from the moving portion 21a through the elevating wire 24. The cab frame body 3 is suspended via the suspension wire 22. The rail 23 is arranged along the upper side of a plurality of storage tanks 25 arranged in parallel for electrodeposition coating. In each storage tank 25, a degreasing solution, washing water for washing, a liquid for surface adjustment, a liquid for chemical conversion treatment, a paint aqueous solution for electrodeposition coating, etc. are stored. Note that, in FIG. 6, the cab frame main body 3 is not tilted for convenience of drawing, but in reality, as shown in FIGS. 5A and 5B, the cab frame main body 3 is tilted. Has become.

In this way, the cab frame main body 3 is pulled up from the aqueous coating solution or the cleaning liquid 20 in an inclined posture with the large opening 9 facing downward, so that the cab pulled up from the bath 25 for each storage tank 25 in the process of electrodeposition coating shown in FIG. The paint aqueous solution or the cleaning liquid 20 stored in the floor panel 8 of the frame body 3 is dropped from the large opening 9 (see FIGS. 5A and 5B). Thereafter, a baking process and a drying process (not shown) are performed to complete the electrodeposition coating of the cab frame body 3.

After the electrodeposition coating is completed, as shown in FIG. 3, the door 2 is mounted between the painted front pillar of the cab frame body 3 and the 4L center pillar 6, and the front pillar 4R on the side opposite to the cab frame body 3 is mounted. Interior parts such as the instrument panel 19a, the seat 19b, and the air conditioner 19c are carried into the cab frame body 3 through the large opening 9 between the rear pillar 5R and the rear pillar 5R to be assembled. Then, as shown in FIG. 4, the painted side panel 7 is attached to the large-sized opening 9 of the painted cab frame main body 3 in which the interior parts 19 are assembled by bolts, rivets or adhesive instead of welding. To do.

(Action/effect)
According to this embodiment, the following actions and effects can be exhibited.

As shown in FIGS. 3 and 4, the painted side panel 7 is bolted, riveted or glued to the large opening 9 between the front pillar 4R and the rear pillar 5R on the side opposite to the door of the painted cab frame body 3. Before mounting, the interior components 19 such as the instrument panel 19a, the seat 19b, and the air conditioner 19c assembled in the cab frame body 3 can be carried into the cab frame body 3 through the large opening 9. Therefore, the carry-in property of the interior components 19 such as the instrument panel 19a is improved, and the carry-in time can be shortened.

As shown in FIG. 2(b), the distance between the front pillar 4R and the rear pillar 5R, which is an opening for carrying in the interior component 19 such as the instrument panel 19a, is the conventional carrying-in opening as shown in FIG. 2(a). Since it is wider than the space between the front pillar 4L and the center pillar 6 which has been described above, when carrying the interior parts 19 such as the instrument panel 19a into the cab frame 3 as shown by an arrow Y in FIG. It can be carried in using so-called material handling equipment without relying on it. Therefore, the workability at the time of carrying in the interior component 19 such as the instrument panel 19a having a constant weight into the cab frame body 3 is improved, and the work time can be shortened.

As shown in FIG. 3, the interior components 19 such as the instrument panel 19a, seat 19b, and air conditioner 19c are assembled outside the cab frame main body 3 as appropriate to form a sub-assembly product that is large enough to pass through the large opening 9. Since the sub-assembly product can be carried into the cab frame main body 3 through the large opening 9 by using a so-called material handling device, the workability is improved and the assembly time can be shortened.

As shown in FIG. 4, the painted side panel 7 is attached to the enlarged opening 9 of the painted cab frame body 3 by means of bolts, rivets or an adhesive instead of welding. In the structure 1, the coating surface at the joint portion between the cab frame body 3 and the side panel 7 is not damaged by welding heat, and the quality and assemblability of the completed cabin structure 1 of the construction machine can be compatible.

As shown in FIGS. 5(a) and 5(b), when the cab frame main body 3 before the side panel 7 is attached is electrodeposition coated, the side on which the large opening 9 is formed is the lower side of the cab frame main body 3. In such a posture as to be inclined, the paint solution or the cleaning solution 20 stored in the floor panel 8 of the cab frame body 3 that has been lifted up is submerged in the paint solution or the cleaning solution 20 for electrodeposition coating easily from the large opening 9. Can be pulled out. Therefore, the time for running out of liquid can be shortened, and so-called tact time can be shortened. Further, in each step of the electrodeposition coating shown in FIG. 6, the amount of liquid brought from the previous tank to the current tank and from the current tank to the next tank can be reduced, and the quality of the coating is improved.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, it goes without saying that the present invention is not limited to the above-described embodiments, and various modifications within the scope of the claims. It goes without saying that the modified examples also belong to the technical scope of the present invention.

For example, in FIG. 4, if the painted side panel 7 is detachably attached to the large opening 9 of the painted cab frame body 3 by a bolt through a water-blocking seal (not shown), the side panel 7 is removed. Therefore, the opening can be used as a service hole for maintenance. Further, the painted side panel 7 and the side window 18 on which the window frame 17 is painted are integrated, and the integrated side window with a side window is treated as a side panel, and a bolt is attached to the large opening 9 of the cab frame body 3, It may be attached by rivets or an adhesive. This side panel with a side window may have a side window (glass portion) at the front portion instead of the upper portion.

INDUSTRIAL APPLICATION This invention can be utilized for the cabin structure of the construction machine which improved the assembling property of interior parts, such as an instrument panel, a seat, and an air conditioner, and its manufacturing method.

1 Cabin structure of construction machinery 2 Door 3 Cab frame body 4R Front pillar 4L Front pillar 5R Rear pillar 5L Rear pillar 6 Center pillar 7 Side panel 8 Floor panel 9 Large opening 19 Interior parts 19a Instrument panel 19b Seat 19c Air conditioner 20 Paint aqueous solution or cleaning liquid

Claims (3)

Front pillars are erected on the left and right of the front part of the floor panel, rear pillars are erected on the left and right of the rear part of the floor panel, and a center pillar for the door is provided between either the left or right front pillar and the rear pillar. The painted cab frame body has a large opening without a center pillar between the other front and rear pillars.
A painted side panel that is mounted in a large opening between a front pillar and a rear pillar on the opposite door side of the painted cab frame body;
A cabin structure for a construction machine, wherein the painted side panel is attached to a large opening of the painted cab frame body by a bolt, a rivet or an adhesive. A method of manufacturing a cabin structure for a construction machine according to claim 1, comprising:
Front pillars are erected on the left and right of the front part of the floor panel, rear pillars are erected on the left and right of the rear part of the floor panel, and a center pillar for the door is provided between either the left or right front pillar and the rear pillar. The main body of the painted cab frame has been manufactured in which there is no center pillar between the left and right front pillars and the rear pillar, and a large opening is formed.
Through the large opening between the front pillar and the rear pillar on the opposite door side of this painted cab frame body, after carrying in the interior parts such as instrument panel, seat, and air conditioner into the cab frame body and assembling,
In a cabin structure of a construction machine, a painted side panel is attached to a large opening of a painted cab frame body to which the interior parts are assembled by a bolt, a rivet or an adhesive. Production method. A method of manufacturing a cabin structure for a construction machine according to claim 1, comprising:
Front pillars are erected on the left and right of the front part of the floor panel, rear pillars are erected on the left and right of the rear part of the floor panel, and a center pillar for the door is provided between either the left or right front pillar and the rear pillar. The main body of the cab frame, in which there is no center pillar between the front pillar and the rear pillar on the other side of the left and right, and a large opening is formed,
When the cab frame body is submerged in a paint solution for electrodeposition coating or a cleaning solution and is pulled up, the cab frame body is tilted so that the large opening faces downward, and the cab frame body is stored in the raised cab frame floor panel. Drop the coating solution or cleaning solution from the large opening,
Through the large opening between the front pillar and the rear pillar on the opposite door side of the cab frame body thus painted, after carrying in the cab frame body and assembling the interior parts such as instrument panel, seat, and air conditioner,
In a cabin structure of a construction machine, a painted side panel is attached to a large opening of a painted cab frame body to which the interior parts are assembled by a bolt, a rivet or an adhesive. Production method.

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