JP3173939B2 - Driving cabin sliding window support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving cabin applied to a working vehicle such as a backhoe, and more particularly to a driving cabin provided with a pair of upper and lower rollers guided by left and right guide rails.
The present invention relates to a sliding window support structure of a driving cabin equipped with a sliding window configured to be able to slide open and close between a closed state located at a front portion of the driving cabin and an open state along a ceiling portion of the driving cabin.

[0002]

2. Description of the Related Art Conventionally, as a sliding window support structure for an operating cabin as described above, for example, Japanese Patent Application No. 5-1458 / 1993.
As disclosed in Japanese Patent No. 34, when the sliding window is opened along the ceiling of the driving cabin on the ceiling of the driving cabin, the sliding window comes into contact with the upper corner of the sliding window, and In some cases, a pair of left and right stoppers for preventing rattling in the vertical and horizontal directions are provided.

[0003]

However, in the above-mentioned prior art, the corners of the sliding window contacted by the pair of left and right stoppers are defined from the upper end to the lower end (the upper end and the lower end in this case) of the right and left sides of the sliding window. The lower end is defined in the closed state of the sliding window), so that contact between the corners and the stopper prevents rattling of the sliding window in the up and down and left and right directions in the opened state of the sliding window. In this case, the corner of the sliding window comes into contact with the stopper even during the opening and closing operation of the sliding window, which causes a problem that the opening and closing operation of the sliding window cannot be performed smoothly. Further, in order to smoothly open and close the sliding window, if the distance between the corner and the stopper is increased during the opening and closing operation of the sliding window so as to avoid contact between the corner and the stopper, Even in the open state, contact between the corner portion and the stopper cannot be obtained, and there is a problem that rattling of the sliding window in the vertical and horizontal directions cannot be prevented.

[0004] It is an object of the present invention to prevent rattling in the vertical and horizontal directions when the sliding window is open, while allowing the opening and closing operation of the sliding window to be performed smoothly.

[0005]

In order to achieve the above object, according to the present invention, there is provided a pair of upper and lower rollers guided by left and right guide rails. In a sliding window supporting structure of a driving cabin equipped with a sliding window configured to be able to slide open and close freely in an open state along a ceiling portion of the cabin, the sliding window is configured to be a curved window that protrudes outward, Near the ceiling, a rear elastic stopper that contacts the rear end of the sliding window in the opened state to prevent rattling of the sliding window in the vertical and horizontal directions, and supports a lower roller of the sliding window in the opened state. A pair of left and right elastic stoppers that contact the supporting member to prevent rattling of the sliding window in the vertical and horizontal directions.
When the sliding window is open, the sliding window
To the lower side of the
With a pair of elastic stoppers, open the slide window
It comes into contact with the support member located above the lower roller.
Arranged.

[0006]

According to the present invention, the rear elastic stopper and the right and left
By providing a pair of elastic stoppers,
The effect can further prevent rattling of the sliding window.
Also, it comes into contact with a support member provided below the sliding window.
Right and left elastic stoppers near the ceiling
The rear part is used for opening and closing the sliding window.
An elastic stopper or a pair of left and right elastic stoppers
Smooth opening and closing operation without getting in contact with the corners of the ride window
It can work and is hardly affected by external force. And a pair of left and right
Bridge the elastic stopper of the sliding window and the lower roller
This elastic strike is
When there is no need to provide a separate member for contacting the upper
In both cases, move the sliding window relative to the elastic stopper.
As movement can be reduced, rattling of the sliding window is further improved
Can be prevented.

[0007]

Therefore, according to the present invention, the opening and closing operation of the sliding window can be smoothly performed, but the rear end or the rear end of the sliding window can be smoothly operated.
Is compared to the case where one of a pair of left and right elastic stoppers is provided.
Thus, rattling in the vertical and horizontal directions when the sliding window is open can be further prevented. In addition, since the support member originally provided in the slide window for supporting the lower roller is brought into contact with the pair of left and right elastic stoppers, the slide window comes into contact with the pair of left and right elastic stoppers. This is advantageous in terms of manufacturing and manufacturing costs as compared with a case where a dedicated member is newly provided for the purpose.

[0008]

An embodiment in which the present invention is applied to a backhoe will be described below with reference to the drawings. FIG. 1 shows the entire side surface of the backhoe. The backhoe includes a traveling machine base 3 having a pair of left and right crawler traveling devices 1 and a dozer device 2, and an upper part of the traveling machine platform 3 around a vertical axis. A swivel 4 that is mounted so as to be freely swivelable, a backhoe device 6 that is connected to the front of the swivel 4 via a swing bracket 5, a driving cabin 7 that covers a boarding operation unit provided at the center of the swivel 4, and , A driving unit 8 disposed at the rear of the swivel 4, and the like.

The left side of the driving cabin 7 is provided with a door 9 which can swing and open and close around a vertical axis. Further, as shown in FIG. 2, a windshield 10 divided into upper and lower parts is provided on the front surface of the driving cabin 7. Lower windshield 10A located below windshield 10
Is fixed to a lower portion of an opening 7A formed on the front surface of the driving cabin 7 via a gasket 11, and functions as a fixed window forming a lower wall of the front surface of the driving cabin 7. On the other hand, the upper windshield 10B located above the windshield 10 is in a closed state located above an opening 7A formed in the front surface of the driving cabin 7 and in an open state along the ceiling 7B of the driving cabin 7. It is configured to be able to slide open and close freely, and functions as a sliding window of the driving cabin 7. Incidentally, the upper windshield 10B includes a frame 10a that is curved as a frame of the upper windshield 10B,
The glass window 10b is formed in a curved shape and is curved outwardly by the glass body 10b fixed to the frame 10a.

As shown in FIGS. 2 to 4, openings 7A of the driving cabin 7 are provided on both left and right inner side surfaces of the driving cabin 7, respectively.
And a guide rail 12 extending from the lower end of the ceiling 7B to the rear end of the ceiling 7B. On the other hand, the upper windshield 10 </ b> B is provided with a pair of upper and lower rollers 13 guided by left and right guide rails 12. Upper windshield 10B
The left and right rollers 13 provided on the upper side of the frame 10a are supported by support members 14 fixed to the upper ends of the left and right sides of the frame 10a constituting the upper windshield 10B, and are provided below the frame 10a. The left and right rollers 13 are supported by support members 15 fixed to the lower ends of the left and right sides of the frame 10a. A handle 16 for opening and closing the upper windshield 10B is provided substantially at the center of the upper end of the frame 10a. The handle 16 is gripped to form the upper windshield 10B on the front upper portion of the driving cabin 7. Of the opening 7A and the ceiling 7 of the driving cabin 7
By sliding to the position along B, the upper windshield 10B can function as a sliding window.

As shown in FIG. 2, the left and right guide rails 12
An upper windshield 10B is provided below the lower end of the
A lower stopper 17 is provided for receiving the lower roller 13 of the upper windshield 10B and restricting downward movement in the closed state located at A. On the other hand, FIGS.
As shown in the figure, near the rear side of the ceiling 7B in the driving cabin 7, an upper windshield 10B is attached to the ceiling 7B.
A rear elastic stopper 18 is provided to abut on the rear end of the upper windshield 10B to restrict the rearward movement of the upper windshield 10B in the open state along the line.

As shown in FIGS. 2 to 4, the operation cabin 7 is provided with a lock mechanism 19 for fixing the upper windshield 10B in a closed state or an open state. The lock mechanism 19 is provided with an engagement hole 19 formed in a bracket 12A provided at each of the bent portions of the left and right guide rails 12.
a, engagement holes 1 formed in brackets 12B respectively provided at the rear ends of left and right guide rails 12 along ceiling 7B.
9b, and a lock pin 19c provided on each of the upper support members 14 of the upper windshield 10B so as to be able to move in and out in the lateral direction. In the closed state or the open state of the upper windshield 10B, The upper windshield 10B can be fixed in a closed state or an open state by engaging and disengaging the lock pin 19c with the engagement hole 19a or the engagement hole 19b.

By the way, as shown in FIG. 2, the lower stopper 17 for regulating the downward movement of the upper windshield 10B has an inclined guide surface 17a which is directed forward toward the lower side.
When the upper windshield 10B is fixed in a closed state, the upper windshield 10B and the gasket 11 of the opening 7A are brought into close contact with each other to infiltrate rainwater from the opening 7A and to prevent the upper windshield 10B To prevent rattling in the closed state.

As shown in FIGS. 2 to 4, near the front side of the ceiling portion 7B of the driving cabin 7, right and left portions which contact the support member 15 which supports the lower roller 13 of the upper windshield 10B in the opened state. A pair of elastic stoppers 20
The elastic stopper 20 and the rear elastic stopper 18 prevent rattling of the open upper windshield 10B in the vertical and horizontal directions. The support member 15 to which the elastic stopper 20 contacts is fixed to the left and right sides of the frame 10a constituting the upper windshield 10B as described above, whereby the opening and closing operation of the upper windshield 10B is performed. The elastic stopper 20 is used for the upper windshield 10.
B to prevent contact with the upper windshield 10B.
Opening and closing operations can be performed smoothly. The rear elastic stopper 18 and the elastic stopper 20 are formed by baking and fixing rubber to the head of the bolt, and the pressing force against the upper windshield 10B can be changed by adjusting the screwing amount of the bolt. It has become.

[Other Embodiments] Other embodiments will be listed below. The driving cabin 7 may be, for example, one used for a tractor or a combine. Various modifications are possible as the form of the rear elastic stopper 18 and the elastic stopper 20. For example, each of the rear elastic stopper 18 and the elastic stopper 20 is configured so that the pressing force against the upper windshield 10B cannot be changed. Is also good.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a backhoe.

FIG. 2 is a longitudinal side view of the driving cabin.

FIG. 3 is a longitudinal sectional side view of a main part showing a rear elastic stopper.

FIG. 4 is a longitudinal sectional front view of a main part showing an elastic stopper.

[Explanation of symbols]

 7 Operating Cabin 7B Ceiling 10B Sliding Window 12 Guide Rail 13 Roller 15 Supporting Member 18 Rear Elastic Stopper 20 Elastic Stopper

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60J 1/00 B60J 1/16

Claims (1)

(57) [Claims] 1. A closed state at a front portion of an operating cabin (7), comprising a pair of upper and lower rollers (13) guided by left and right guide rails (12), and a ceiling of the operating cabin (7). A sliding window support structure of a driving cabin equipped with a sliding window (10B) configured to be freely opened and closed in an open state along a portion (7B), wherein the sliding window (10B) is bent outward. The sliding window (10B) in the opened state is abutted against the rear end of the sliding window (10B) near the ceiling (7B) to prevent rattling of the sliding window (10B) in the vertical and horizontal directions. The rear elastic stopper (18) contacts the support member (15) that supports the lower roller (13) of the sliding window (10B) in the open state, so that the sliding window (10B) moves vertically and horizontally. Rattle Right and left pair of elastic stoppers for preventing (20) is provided and said support member (15)
When the sliding window (10B) is open,
Arrange so that it is located below the ride window (10B).
And a pair of left and right elastic stoppers (20)
With the sliding window (10B) open.
Contact with the support member (15) above the roller (13)
The sliding window support of the driving cabin arranged so that
Construction.