JP2564680Y2 - Cabin structure with slide door - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabin of a construction machine, and more particularly to a cabin structure having a slide door.

[0002]

2. Description of the Related Art Construction machines, especially cabins for power shovels, are susceptible to shocks and vibrations during running and working. Therefore, as shown in FIG. Has a box-shaped structure with a closed cross section. Particularly, in a cabin having a sliding door, when the door 23 is opened, the upper roller 24 provided in the door 23 has a structure that stops in front of the center pillar 22. Or it was trapezoidal as shown in FIG.

[0003]

[Problems to be Solved by the Invention] However, if the door is rectangular or trapezoidal, not only is there a great restriction in design, but also the opening width W of the door becomes narrow in practical use, and there is a drawback that the getting on and off property is deteriorated. Was. That is, since the upper roller 24 does not go behind the center pillar 22 when the door is opened, the width of the getting on and off portion required for getting on and off is reduced, and even if the door 25 is trapezoidal as shown in FIG. There is no change in the narrowness of the mouth W. Particularly, in the case of a small power shovel, it is very difficult to provide a sliding door at the opening when the door is opened due to its short dimension in the front-rear direction.

[0004] In view of the above, the present invention has been made to solve the drawbacks of the prior art by providing a cabin structure having a slide door in which the slide door can be largely opened by moving the slide door behind the center pillar. It was done.

[0005]

According to the present invention, a front pillar, a center pillar, and a rear pillar are framed, and the outer surface thereof is covered by a roof panel and a side panel. A cabin in which the entrance and exit are provided on the front side surface of the side panel and the entrance and exit are opened and closed by a slide door. An opening having a desired length is provided between the lower end of the roof panel and a rib, and a guide rail of an upper roller of the slide door extends rearward beyond an upper portion of the center pillar in the opening. It is characterized by having been established.

[0006]

According to the above construction, the upper roller of the slide door can be moved backward beyond the center pillar, so that the opening can be made large.

[0007]

FIG. 1 is a left plan view showing one embodiment of a cabin structure having a slide door according to the present invention, FIG. 2 is a side view in which a lower portion of FIG. 1 is omitted, and FIG. FIG. 4 is a sectional view showing the shape of the center pillar shown in FIG.
Is an example of a separate rib addition type, (b) is an example of a rib integral type, and FIG. 5 is a comparison diagram of the opening degree of the present invention and a conventional door.

Hereinafter, the present invention will be described with reference to an embodiment shown in FIGS. The present invention uses a front pillar-2, a center pillar-3, and a rear pillar-4 as a framework.
The cabin 1 has its outer surface covered and connected by a roof panel 5 and a side panel 6, and has an entrance 7 on the front side of the side panel 6, and the entrance 7 is opened and closed by a slide door 8. , The center pillar-3
A rib 9 having a triangular shape at the same height as the upper surface is provided in the upper part on the back side, and an opening 10 of a desired length is provided between the rib 9 and the lower end of the roof panel 5. The guide roller 12 of the upper roller 11 is configured to extend from the upper portion of the center pillar 3 to the rear portion thereof.

In the cabin 1, a guide rail 12 is provided along the outer periphery at an upper part, and an upper roller 11 on a roller bracket 13 provided on a slide door 8 moves along the guide rail 12. Then, the center roller 14
Also, since the roller 15 also moves along the respective roller guides, the slide door 8 can open and close the entrance 7 as shown by a solid line and a two-dot chain line. 2, the center pillar-3 reinforced by a rib 9 so that the upper surface is widened as shown in FIG.
In the front-rear direction of the upper surface, a long and narrow shape having a desired length and an appropriate height is formed so as to open the outer peripheral surface. The rear end 12a of the guide rail 12 is located at the rear of the opening 10 as shown in FIG. 1, and when the roller bracket 13 moves back and forth from the outside in the opening 10, the upper Since the roller 11 can move along the guide rail 12 in the opening 10, the slide door 8 opens largely. The relationship between the side panel 6 and the roof panel 5 will be described in more detail. As shown in FIG. 3, an inner panel 16 is provided in the roof panel 5 and is attached to the side panel 6 at a right angle. Therefore, the connection between the center panel 6 and the inner panel 16 and the rib 9
The connection between the side panel 6 and the roof panel 5 becomes strong even if there is an opening 10 due to the connection. FIG.
Reference numeral 17 is a base.

Next, the operation of the present invention is compared with that of the prior art in FIG.
This will be described below. That is, in the cabin 1, since the upper roller 11 cannot exceed the center pillar-3 as indicated by the two-dot chain line in the conventional method, the opening width of the slide door is a.
However, in the present invention, since the slide door 8 can move beyond the center pillar-3, the slide door 8 at this time can be opened as indicated by a dotted line to increase the opening width A.

The rib 9 provided on the center pillar 3 is provided.
May be an additional rib type as shown in FIG.
(B) As shown in FIG.

[0012]

As described above, according to the present invention, the front pillar, the center pillar, and the rear pillar are used as a framework, and the outer surfaces thereof are connected by a roof panel and side panels, and connected to each other. In a cabin having an opening for getting on and off on a front side surface thereof, the opening is opened and closed by a slide door, a triangular rib having the same height as an upper surface is provided on an upper rear side of the center pillar, and a lower end of the roof panel is provided. A notch of a desired length is provided between the center pillar and the guide rail of the upper roller of the slide door extends to the rear beyond the upper portion of the center pillar, and the slide door is extended from the center pillar in the notch. Can also be moved rearward, so that the opening can be made large. In addition, since the slide amount can be secured, the shape of the door can be made free, and the design can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view showing an embodiment of a cabin structure having a slide door according to the present invention.

FIG. 2 is an explanatory view showing a side surface of FIG. 1;

FIG. 3 is an explanatory view showing an AA cross section of FIG. 1;

4A and 4B show the shape of the center pillar shown in FIG. 1, wherein FIG. 4A is an explanatory view of an example of a separate rib addition type, and FIG.

FIG. 5 is an explanatory view showing a comparison of the degree of opening between the cabin of the present invention and a conventional cabin.

FIG. 6 is an explanatory view showing a side surface of an example of a cabin having a conventional slide door.

FIG. 7 is an explanatory view showing a side surface of another example of a cabin having a conventional slide door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cabin 2 Front pillar 3 Center pillar 4 Rear pillar 5 Roof panel 6 Side panel 7 Getting on and off 8 Slide door 9 Rib 10 Opening 11 Upper roller 12 Guide rail

Claims (1)

(57) [Scope of request for utility model registration] 1. An arrangement structure of an upper rail for sliding a door of a cab having a slide door for opening and closing an entrance, wherein a hollow frame having a horizontal opening facing the outside of a cabin between a roof panel and a center pillar is provided. It is provided so as to cross the upper end of the center pillar, and an upper rail for sliding the door that crosses the upper end of the center pillar is mounted in a hollow frame so that the upper guide roller of the sliding door can move behind the center pillar. Cabin structure having a slide door.