JP2000203265A - Roof device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To expand a light transmissive part by arranging the light transmissive part in a part of a roof body, telescopically arranging plural-stage light shielding plates on the lower side of the roof body, and switching the respective light shielding plates to a state of being stored on the under side of the roof body by overlapping each other and a state of unfolding to the lower side of the light transmissive part. SOLUTION: In a cab 4 used for a construction machine such as a hydraulic excavator, an opening part 13 as a light transmissive part is partially formed in a roof body 12 of a cab body 11, and a hatch 5 is added to this opening part by a hinge 14 so as to be freely openable/closable. While, a sun shade 15 is slidingly arranged on the under side of the roof body 12, and this sun shade is formed of front/rear both side pads 15a, 15b as plural-stage light shielding plates. The front/rear both side pads 15a, 15b are switched to a state of being housed on the under side of the roof body 12 except for the opening part 13 by overlapping each other and a state of shielding solar radiation shining in from the opening part 13 by unfolding to the under side of the opening part 13. Thus, the sun shade 15 is compactly stored to expand the area of the opening part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof device having a light transmitting portion.

[0002]

2. Description of the Related Art FIG. 7 shows a hydraulic excavator as a construction machine. An upper revolving structure 2 provided to be rotatable with respect to a lower traveling structure 1 is provided with a working machine 3 for excavation to form a driver's cab. Cab 4 is mounted.

A roof device is provided on the roof of the cab 4. In this roof device, an opening is provided in a part of the roof, and a hatch 5 made of glass or synthetic resin having a light-transmitting property for improving an upper visibility is provided in the opening so as to be opened and closed. . In some cases, instead of the hatch 5 that can be opened and closed, a window of a fitting type is provided at the opening of the roof.

[0004] As shown in FIGS. 8 and 9, a sunshade 6 is provided below the hatch 5 by a single light-shielding plate to block sunlight entering the cab through the hatch 5. .

The sunshade 6 has both side edges slidably fitted to the guide rails 7 to shut off the sunlight from the open state shown by the solid line in FIG. Is slid to the closed state indicated by.

[0006]

Here, in the conventional cab 4, the size of the hatch 5 is limited because the sunshade 6 is composed of one light shielding plate. In other words, the total length of the sunshade 6 in the moving direction cannot be larger than 1/2 of the indoor length L of the cab 4 in view of the stored state, so that the size of the hatch 5 cannot exceed this.

On the other hand, as shown in FIG.
If the size of the sunshade 6 is enlarged, the sunshade 6 constituted by one light shielding plate may not be able to be stored on the roof of the cab 4.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a roof device having a light transmitting portion and a light shielding plate so that the light transmitting portion can be enlarged.

[0009]

According to the first aspect of the present invention, there is provided a roof body, a light-transmitting portion partially provided on the roof body, and a mutual slidably provided below the roof body. And a plurality of light-shielding plates that are housed under the roof body other than the light-transmitting portion and extend below the light-transmitting portion to shield sunlight.

When the light-transmitting portion is enlarged in the roof main body, portions other than the light-transmitting portion are reduced. However, when the light-transmitting portion is opened, a plurality of light-shielding plates are provided. When the light-transmitting portion is shielded, it extends under the light-transmitting portion to shield the sunlight passing through the enlarged light-transmitting portion.

According to a second aspect of the present invention, in the roof device according to the first aspect, a push-in locking portion provided at a front portion of a light shielding plate located relatively at a front stage, and a push-down engagement portion provided at a relatively front stage. Engagement with a draw-out locking part provided at the rear part of the positioned light shielding plate and one of a push-in locking part and a pull-out locking part provided at the front part of the light shielding plate located relatively downstream. And a locked portion.

When a plurality of light-shielding plates are opened from below the light transmitting portion, only the light-shielding plate located relatively at the previous stage is pushed in, so that the push-in locking portion of the light-shielding plate is relatively pressed. By engaging the locked portion of the light shielding plate located at the subsequent stage, and when pulling out the light shielding plates of the plurality of stages below the light transmitting portion, only the light shielding plate located relatively at the preceding stage is By engaging the locking portion for pulling out of the light shielding plate with the locked portion of the light shielding plate located at a relatively subsequent stage by pulling out the light shielding plate of the preceding stage, the light shielding at the subsequent stage can be performed by operating only the light shielding plate of the preceding stage. Open and close the board automatically.

According to a third aspect of the present invention, in the roof device according to the second aspect, a locking portion for pushing and a locking portion for pulling out are formed on the side of the light shielding plate located relatively in front. A horizontal concave portion is formed between the push-in locking portion and the pull-out locking portion, and a locked portion bent from a light shielding plate located at a relatively subsequent stage is fitted in the horizontal concave portion. The locking portion for pushing in and the locking portion for pulling out the light shielding plate located relatively upstream and the locked portion of the light shielding plate located relatively downstream are provided on the lower side of the roof main body. The roof device is slidably fitted into one of the plurality of guide grooves, and a side edge portion of a light shielding plate located at a relatively subsequent stage is slidably fitted into another guide groove. .

As described above, the push-in and pull-out locking portions of the front light shielding plate and the locked portion of the rear light shielding plate are slidably fitted in one of the plurality of guide grooves. Since the side edges of the rear light shield plate are slidably fitted in the guide grooves of the other stages, the light guide plates of the multiple stages can be slidably held by the guide grooves of the multiple stages, and the push The engaged state between the locked portion and the lateral recess between the locking portion and the pull-out locking portion can be maintained.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment shown in FIGS. 1 to 5 and another embodiment shown in FIG.

FIGS. 1 and 2 show an upper portion of a cab 4 used for construction equipment such as a hydraulic excavator, and a cab body.
An opening 13 as a light-transmitting portion, which is larger than the conventional one, is partially provided in a roof main body 12 forming the roof portion 11, and a hatch 5 is provided in the opening 13 with a hinge 14 so as to be freely opened and closed. The hatch 5 with the opening 13 closed is also a light transmitting part.

A sunshade 15 is slidably provided below the roof body 12. This sunshade 15 is a front pad located at a relatively front stage as a multi-stage light shielding plate.
15a and a rear pad 15b located relatively at a later stage.
, And extends below the opening 13 to shield sunlight passing through the opening 13.

As shown in FIG. 2, brackets 16 are integrally provided on the lower surfaces of the left and right side edges of the opening 13 in the roof body 12, and the guide rails 21 are screwed to these left and right brackets 16 with screws 17. A front pad 15a is slidably fitted in a guide groove 22 provided in a lower stage of each guide rail 21, and a rear pad 15b is slidably fitted in a guide groove 23 provided in an upper stage. It is movably fitted. The upper and lower relations of these pads 15a and 15b may be reversed, and the shape of the pad end may be reversed accordingly.

The guide rails 21 and their mounting structures are formed by an interior member mounted inside the roof body 12.
It is covered by 24 so as not to be seen from the lower driver's cab 25. A sealing member 26 for sealing the roof main body 12 and the hatch 5 is fitted to the opening edge of the roof main body 12.

As shown in FIGS. 3 to 5, a handle 31 having an inverted concave cross section is provided at the center of the front part of the front pad 15a, and is pushed into the left and right sides of the front part of the front pad 15a. Locking portions 32 are provided, and pull-out locking portions 33 are provided on both left and right sides of the rear portion of the front pad 15a. Further, on both left and right sides of the front portion of the rear pad 15b, a key-shaped locked portion 34 which engages with one of the pushing locking portion 32 and the pull-out locking portion 33 is provided. I have.

The push-in locking portion 32 and the pull-out locking portion 33 are formed so as to protrude from the side of the front pad 15a, so that the push-in locking portion 32 and the pull-out locking portion 33 are formed.
4 and the locked portion 34 is formed from the side edge 36 of the rear pad 15b through a notch 37 as shown in FIG. L to the lower part 38
By being formed into a shape, it is provided flush with the lower front pad 15a, and is fitted into the lateral recess 35 of the front pad 15a.

As shown in FIG. 5, the guide rail 21 having the plurality of guide grooves 22 and 23 is formed with a lower plate portion 41 and the guide groove 22 above the lower plate portion 41. A middle plate portion 42, an upper plate portion 43 formed above the middle plate portion 42 through the guide groove 23, and the bracket 17 by the screw 17.
The lower plate 41 supports both the front pad 15a and the rear pad 15b, and the mounting plate 44 fixed to the fixing plate 16 is integrally formed via the vertical plate 45. It is formed wider than 42 and upper plate portion 43. The guide grooves 22 and 23 may be integrated.

Then, the locking portion 32 for pushing the front pad 15a is pressed.
And withdrawal locking portion 33 and locked portion 34 of rear pad 15b.
Are slidably fitted in the lower guide groove 22, and the side edges 36 of the rear pad 15 b are slidably fitted in the upper guide groove 23.

As described above, the front pad 15a and the rear pad 15b are inserted into the lateral recess 35 of the front pad 15a.
Since the locked portion 34 of b is configured to enter,
Simply by inserting a finger into the handle 31 from below and sliding the front pad 15a back and forth, the rear pad 15b is automatically inserted and removed.

For example, when opening the front pad 15a and the rear pad 15b which are closed below the opening 13, only the front pad 15a is pushed in the opening direction to push the front pad 15a. Locking part 32 and rear pad
After the engagement of the locked portion 34 of the rear pad 15b, the rear pad 15b is automatically opened together with the front pad 15a.

Similarly, the front pad 15a and the rear pad
When pulling out the lower side of the opening 13, the front side pad 15a
By pulling only the lower side of the opening 13, the front pad
After the locking portion 33 for extraction of the rear pad 15a is engaged with the locked portion 34 of the rear pad 15b, the rear pad 15a is joined together with the front pad 15a.
b also closes automatically.

Next, in the embodiment shown in FIGS. 3 to 5, the front pad 15a and the rear pad 15b as a plurality of light-shielding plates are engaged at their side portions. However, the present invention is not limited to this.

For example, as in the embodiment shown in FIG. 6, the upper convex portion of the handle 31 provided at the front portion of the front pad 15a is used as a push-in locking portion 32, and the upper portion of the front pad 15a is positioned upward from the rear portion. A locking portion 33 for pull-out is projected from the front side of the rear pad 15b, and furthermore, the engagement portion engages with one of the locking portion 32 for pushing and the locking portion 33 for pull-out. An engagement structure in which the stopping portion 34 is protruded may be employed.

The push-in locking portion 32 and the pull-out locking portion 33
And the locked portion 34 includes the front pad 15a and the rear pad 15b.
And a separate product using a bent product or a pin.

In the illustrated embodiment, a two-stage type of front-side pad 15a and rear-side pad 15b is exemplified as a plurality of stages of light-shielding plates. It may be a multistage type. In that case,
The above-mentioned engagement structure provided between the first-stage pad and the second-stage pad is provided between the second-stage pad and the third-stage pad. Between the first pad and the fourth pad.

Further, the hatch 5 is not indispensable. For example, even when a window of a fitting type is attached to the opening 13, the slide type sunshade 15 may be formed in a plurality of steps.

As described above, since the sliding sunshade 15 of the roof device having the opening 13 and the hatch 5 is formed in a plurality of steps, the opening 13 and the hatch 5 can be enlarged, and the first step The second and subsequent stages can be automatically opened and closed only by eye operation, so that the multi-stage sunshade 15 can be easily operated.

Lastly, the scope of the present roof apparatus is not limited only to the cab of the construction machine such as the hydraulic excavator shown in the embodiment. The present invention can also be applied to a device provided with a step light shielding plate.

[0034]

According to the first aspect of the present invention, when the light-transmitting portion is opened, the plurality of light-shielding plates are overlapped below the roof body other than the light-transmitting portion and are compactly stored. When the light-transmitting portion is shielded, the light-transmitting portion is extended below the light-transmitting portion.

According to the second aspect of the invention, when the plurality of light shielding plates are opened from below the translucent portion, the push-in locking portion of the front light shielding plate and the locking of the rear light shielding plate are locked. Part engages,
Also, when pulling out the multi-stage light shielding plate below the translucent part,
Since the locking part for drawing out the light shielding plate of the former stage and the locked part of the light shielding plate of the subsequent stage are engaged, by operating only the light shielding plate of the former stage, the light shielding plate of the latter stage can be automatically opened and closed, Operability is good.

According to the third aspect of the present invention, the push-in locking portion and the pull-out locking portion of the front light shielding plate and the locked portion of the rear light shielding plate are one of a plurality of guide grooves. Slidably fitted to the other stage, and the side edge of the rear light shield plate is slidably fitted to the guide groove of the other stage. It is possible to hold the fitting state between the locked part and the horizontal recess between the locking part for pushing and the locking part for pulling out. Can be secured.

[Brief description of the drawings]

FIG. 1 is a front-rear sectional view showing an embodiment of a roof device according to the present invention.

FIG. 2 is a left-right cross-sectional view of the roof device.

FIG. 3 is a perspective view showing a light shielding plate of the roof device.

FIG. 4 is an enlarged perspective view of an engaging portion of the light shielding plate.

FIG. 5 is a sectional view showing a state in which the light shielding plate is fitted in a guide groove.

FIG. 6 is a side view showing another example of the engagement structure of the above light shielding plate.

FIG. 7 is a perspective view of the construction machine.

FIG. 8 is a cross-sectional view in the front-rear direction of a roof device having a conventional light shielding plate.

FIG. 9 is a cross-sectional view in the left-right direction of a roof device having a conventional light shielding plate.

FIG. 10 is a front-rear cross-sectional view of a roof device for describing a problem of a conventional light shielding plate.

[Explanation of symbols]

12 Roof body 13 Openings 15a and 15b as light-transmitting parts Front pad 15a and rear pad 15b as light-shielding plates 22 and 23 Guide groove 32 Push-in locking part 33 Pull-out locking part 34 Locked part 35 Side Recess 36 side edge

Continuing from the front page (72) Inventor Masafumi Iguchi 7-14-1 Wadamiya-dori, Hyogo-ku, Kobe City, Hyogo Prefecture Inside Seiryo Engineering Co., Ltd. (72) Inventor Takashi Fujimoto 1-1-1, Shiohama, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Press Industry Co., Ltd. (72) Inventor Yoshinobu Morikazu 1-1-1, Shiohama, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture F-term within Press Industry Co., Ltd. (Reference) 2D015 EA03 3D003 AA18 BB14 CA38 DA16 DA18

Claims (3)

[Claims] 1. A roof body, a light-transmitting part partially provided on the roof body, and a lower part of the roof body other than the light-transmitting part which are slidably provided below the roof body and overlap with each other. And a plurality of light-shielding plates that are housed in the light-transmitting portion and extend below the light-transmitting portion to shield sunlight. 2. A push lock portion provided at a front portion of a light shield plate located relatively front, a pull-out lock portion provided at a rear portion of a light shield plate located relatively front, 2. A locked portion provided at a front portion of a light shielding plate located at a relatively rear stage and engaged with one of a push-in lock portion and a pull-out lock portion. The roof device as described. 3. A push-in lock portion and a pull-out lock portion are formed to protrude from the side of the light shielding plate located relatively in front of each other, and the push-in lock portion and the pull-out lock portion are connected to each other. A laterally concave portion is formed therebetween, and a locked portion bent from a light shielding plate located relatively at the subsequent stage is fitted into this lateral concave portion, and a push lock of the light shielding plate located relatively at the front stage is engaged. The lock portion and the locked portion of the light-shielding plate positioned relatively behind the drawer locking portion are slidably fitted into one of a plurality of guide grooves provided on the lower side of the roof body. 3. The roof device according to claim 2, wherein a side edge portion of the light shielding plate located at a relatively rear stage is slidably fitted in a guide groove of another stage.