JPH08311930A - Loading structure of double sliding window frame of cabin for construction machinery - Google Patents

Abstract

PURPOSE: To form a window frame in a simple shape and to facilitate loading work of the window frame to a cabin for construction for fixing the double sliding window frame formed of a tie plate or an aluminum pull-out member to an opening section of the cabin for a construction machinery. CONSTITUTION: A double sliding window frame of a cabin for a construction machinery is equipped with a window frame 9 with a U-shaped section and a rubber material 1 provided between the frame 9 and an opening edge of the cabin 4. The rubber material 1 is equipped with a sectional shape having a U-shaped recess section 15 for holding the rear and outside surface of the frame 9, a deep groove-like slit 16 and a holding seat 3 positioned to the rear side of the recess section 15. The rubber material 1 holds the window frame 19 in a state to fit the window frame 9 to the recess section 15, fit a frange 7 of the opening edge in the cabin to the slit 16 and to seat the holding seat 3 on a holding surface 8 of the opening edge in the cabin. A favorable shape of the rubber material 1 is the shape equipped with a roughly S-shaped basic section arranging the recess section 15 and slit 16 horizontally from the opposite direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a window frame of a sliding window applied to a cabin of a construction machine, and constructs a window frame for a sliding door formed of a strip steel plate or an aluminum drawn material. The present invention relates to a structure that is fixed to an opening of a cabin of a machine.

[0002]

2. Description of the Related Art FIG. 6 shows a frame 3 made of strip steel.
It is an example of a conventional mounting structure of a window frame having 0. The frame 30 is formed by rolling a thin strip steel plate in the front-rear direction of the plane of the drawing to form a guide portion 31 having a Y-shaped cross section and a mounting portion 32 having a U-shaped cross section extending from an inner edge thereof (an edge facing the inside of the cabin). Further, it has a complicated cross-sectional shape in which a water draining portion 33 extending downward is further provided at the outer edge of the guide portion (edge facing the outside of the cabin). Inside the guide portion 31, the run channel 1 having a substantially W-shaped cross section in which a slide / sealing layer 35 is provided on the inner surface of a rubber base 34.
0 is fitted, and the glass plate 36 is fitted inside the run channel 10 so as to be slidable in the direction perpendicular to the plane of the drawing.

At least the window frame mounting portion of the cabin has a double structure having an inner panel 5 and an outer panel 6, and the inner panel 5 and the outer panel 6 are provided at the edge of the opening into which the window frame is fitted. The flange 7 formed by joining the two is protruding. A receiving surface 8 for receiving the window frame by the outer panel 6 is formed in a portion on the outdoor side of the flange 7.
Is inclined outward to prevent rainwater and dust from collecting.

The window frame 37 having the above-described structure is supported on the receiving surface 8 of the cabin opening edge through a spacer 38 made of a rubber block, and the tip side of the frame mounting portion 32 is attached to the flange 7 of the opening edge. It is installed in the installed state. Then, the flange 7 and the tip side of the mounting portion 32 of the frame are sandwiched and fixed by a fixing member (trim) having a U-shaped cross section with an adhesive 39 applied to the inner surface thereof, and further the receiving surface 8 and the spacer 3 are provided.
The window frame 37 is fixed to the opening edge of the cabin by joining 8 and 8 with a caulking material.

FIG. 7 is a side view showing the opening of the cabin in which the window frame 37 is thus mounted.

FIG. 8 and FIG. 9 show an example of a conventional mounting structure of a window frame 37 having a frame 30 made of an aluminum drawing material. The frame 30 has a cross-sectional shape including a guide portion 31 having a Y-shaped cross section and a fixing rib 40 extending to the rear surface of the frame 30. It is held slidably.

In the structure shown in FIG. 8, a groove 7 on both sides of a rubber material (H rubber) 41 having an H-shaped cross section elongated in a direction perpendicular to the plane of the drawing forms a flange 7 at the edge of the cabin and a fixing rib 4 of the window frame.
The window frame 37 is fixed by sandwiching it with 0.
Further, in the structure shown in FIG. 9, the window frame 37 is fixed by fixing the fixing rib 40 of the window frame to the flange 7 at the edge of the cabin opening with the bolt 42.

[0008]

In the conventional structure shown in FIG. 6, the cross-sectional shape of the frame 30 is complicated, and the number of manufacturing steps is long,
Moreover, the weight of the window frame is increased. Further, there is a problem in that the number of work steps required for mounting the assembled window frame to the cabin and the number of parts required for mounting are increased.

Further, in the conventional structure shown in FIG. 8, the flange 7 formed at the opening edge of the cabin and the fixing rib 40 on the window frame side.
And H have a positional relationship of facing each other, and the H rubber 41 is used to
In order to hold 7 firmly, flange 7 and fixing rib 4
Since a protrusion height of 0 is required to some extent, there is a drawback that the opening area actually usable as a window is smaller than the opening area of the cabin and the field of view is narrowed. Further, in the structure shown in FIG. 9, if there is a dimensional error between the opening of the cabin and the window frame, the bolt 42 cannot be inserted, which requires high-precision dimensional control and is costly. Further, in the structure shown in FIGS. 8 and 9, since the rigidity of the frame 30 needs to be increased, the frame 30 must be made of an aluminum drawn material,
It becomes expensive when the number of lots is small.

The present invention has been made in order to solve the problems of the conventional structure as described above, and includes the frame 3 of the window frame.
It is possible to obtain a mounting structure that makes it easy to mount the window frame on the cabin and that can secure the window frame to the opening edge of the cabin in a stable manner, while making it possible to inexpensively manufacture the window frame. It is an issue.

[0011]

The sliding window frame mounting structure of the present invention for solving the above problems is a window frame 9 having a Y-shaped cross section and a run channel 10 fitted inside the frame. And a rubber material 1 interposed between the frame 9 and the opening edge of the cabin 4, the rubber material 1 having a U-shaped recess 15 for holding the back surface and the outer surface of the frame 9. And a cross-sectional shape having a deep groove-shaped slit 16 and a receiving seat 3 located on the rear side of the concave portion 15. In the rubber material 1, the window frame 9 is fitted in the concave portion 15, and the cabin opening is formed. The edge flange 7 is fitted into the slit 16, and the seat 3 holds the window frame 19 while being seated on the receiving surface 8 of the cabin opening edge.

The preferred shape of the rubber material 1 is the recess 15 described above.
The slit S and the slit 16 are arranged side by side from the opposite direction.
It is a shape having a basic cross-sectional shape of a V shape.

Another preferable shape of the rubber material 1 is a shape having a substantially H-shaped basic cross-sectional shape in which the recess 15 and the slit 16 are arranged back to back and the upper and lower groove widths are different.

More preferably, the rubber material 1 has a cross-sectional shape including a water-sealing rib 2 extending from the outdoor end of the basic cross-sectional shape to the side opposite to the recess.

[0015]

The rubber material 1 in the mounting structure of the present invention has the slit 16 after the window frame 9 is fitted into the recess 15.
Expand the flexible lip 18 located on one side of the slit 1
It is fixed to the cabin 4 by inserting the flange 7 of the cabin opening edge into the cabin 6. At this time, the receiving seat 3 on the back surface of the recess 15 abuts on the receiving surface 8 of the opening edge formed by the panel of the cabin to support the window frame and the glass attached thereto.

The structure in which the basic cross-sectional shape of the rubber material is substantially S-shaped is such that, when the window frame 19 is mounted, the flange 7 at the opening edge of the cabin and the frame 9 of the window frame are arranged side by side. The effective window area with respect to the opening area can be widened, and the field of view can be widened. Further, since the elastic rubber material 1 is interposed between the frame 9 and the receiving surface 3 at the opening edge of the cabin, the dimensional error between the window frame 19 and the opening edge can be absorbed. By using an oblique lip-shaped seat as shown in FIG. 1 as the seat 8, the ability to absorb this dimensional error can be further increased.

Further, since the frame 9 of the window frame has a simple Y-shaped cross section, it is easy to fold and manufacture the strip steel plate, and the window frame can be made inexpensive and lightweight.

When the rubber material 1 is provided with the water sealing ribs 2, when the rubber material 1 is attached to the opening of the cabin, the tips of the water sealing ribs 2 come into contact with the outer surface of the outer panel continuing to the seat 3. As a result, rainwater and dust can be prevented from entering the gap formed between the opening edge of the cabin and the rubber material 1, and it is also effective for adjusting the appearance of the window peripheral portion.

[0019]

1 to 4 show a first embodiment of the present invention. The rubber material 1 of this embodiment has a substantially S-shaped basic cross-sectional shape, and includes a water sealing rib 2 and a lip-shaped receiving seat 3.

The side wall of the cabin 4 has a double structure including an inner panel 5 and an outer panel 6, and a flange 7 and a receiving surface 8 are formed at the opening edge for mounting the window frame as in the conventional structure. ing. Further, the frame 9 of the window frame is formed by bending a strip steel plate into a Y-shaped cross section, and a run channel 10 similar to the conventional structure is fitted inside thereof. The protruding height of the central rib 11 having a Y-shaped cross section is lower than the protruding height of the ribs 12 on both sides. Further, the run channel 10 is provided with a tongue piece 13 that resists falling off from the frame 9 and tongue pieces 14 and 14 that hold the fitted glass plate so as not to create a gap.

In the rubber material 1, a recess 15 into which the window frame 9 is fitted and a slit 16 into which the flange 7 of the cabin opening edge is fitted are directed in the opposite directions and in the lateral direction. Are arranged side by side. By arranging the concave portion 15 and the slit 16 in this manner, the rubber material 1
The basic sectional shape of is a horizontal S-shape.

In addition to this basic cross-sectional shape, the rubber material 1 of the embodiment shown in the figure has two lip-shaped receiving seats 3 extending obliquely on the back surface of the recess 15, and further has an edge on the outdoor side. A water-sealing rib 2 extending to the opposite side of the concave portion 15 is formed in the portion that becomes.

The recess 15 has a shape that holds the bottom surface and both side surfaces of the frame 9 of the window frame by the elasticity of rubber. In the free state (the state in which the frame 9 is not fitted), the recess 15 is formed.
Both side wall surfaces are slightly inclined inward, and hooks 17 for locking the upper edges of the ribs 12 on both sides of the frame are formed at the tops of the side wall surfaces. Further, a portion of the slit 16 on the side opposite to the recessed portion is a flexible lip 18 that is bent when the flange 7 of the cabin opening edge is inserted into the slit 16.

When attaching the window frame 19 to the cabin,
The frame 9 is fitted in the recess 15 of the rubber material, and the slit 16
The rubber material 1 is fitted from the outdoor side so that the outer surface of the flexible lip 18 contacts the flange 7 of the cabin opening. And by pulling the rope inserted in the slit 16 through the opening to the inside of the cabin,
The flexible lip 18 is expanded and the flange 7 is inserted into the slit 16. The inserted flange 7 is sandwiched by the elastic force of the flexible lip 18, and the seat 3 abuts the receiving surface 8 to hold the window frame 19. In this mounted state, the water-sealing rib 2 has its tip edge contacting the outer surface of the outer panel 6 to be slightly bent, and shields the gap 20 between the receiving surface 8 of the cabin opening edge and the rubber material 1.

FIG. 5 shows a second embodiment of the present invention and shows a mounting structure using a rubber material 1 having a substantially H-shaped cross section. The rubber material 1 of this embodiment is provided with a concave portion 15 having a U-shaped cross section inside, and a slit 16 into which the flange 7 of the cabin opening edge is inserted is provided at a position slightly eccentric from the center on the rear side thereof. Seats 3 are provided on both sides of the slit 16.
A and 3B are provided, and flexibility is imparted to the outdoor seat 3A located on the right side in the drawing by the recess 21 provided at the entrance portion of the slit 16. Outdoor seat 3
Due to this flexibility, A adheres to the receiving surface 8A of the opening edge even if there is a slight dimensional error between the frame 9 of the window frame and the opening edge of the cabin.

A portion of the rubber material 16 located on the indoor side is provided with flexibility by a recess 21 provided at the base portion thereof to form a flexible lip 18. That is, when inserting the flange 7 into the slit 16, the flexible lip 18 is opened to the indoor side (left side in the drawing) and the flange 7 is fitted.

The width of the second embodiment can be made narrower than that of the first embodiment, but the frame 9 of the window frame is located on the extension of the flange 7 at the opening edge. Therefore, the effective opening area of the window becomes smaller than that of the structure of the first embodiment. However, compared with the conventional structure shown in FIG. 8, the effective area of the window can be increased by the amount that the fixing rib 40 of the frame is omitted. Further, the entire frame 9 is held by the rubber material 1, and the seat 3A of the rubber material 1,
Since 3B is in contact with the receiving surfaces 8A and 8B at the edge of the cabin opening, the frame 9 can be held more stably.

[0028]

According to the mounting structure of the present invention described above, since the window frame of the sliding window can have a simple Y-shaped cross section, the frame can be manufactured inexpensively with a small number of steps. In addition to being able to do so, the window frame can be made lightweight.
Also, since the window frame is fixed to the opening edge of the cabin with no gaps using only a rubber material, the number of parts for fixing the window frame is reduced, and even if there is a dimensional error between the frame and the cabin opening, there is a gap. It does not occur, and the work man-hours when mounting the window frame can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of the first embodiment.

FIG. 2 is a schematic cross-sectional view of a side wall of a cabin equipped with a window frame.

FIG. 3 is a sectional view of the run channel.

FIG. 4 is a sectional view of a window frame.

FIG. 5 is a sectional view of a main part of the second embodiment.

FIG. 6 is a sectional view of a main part of a conventional structure.

FIG. 7 is a schematic side view of a window frame.

FIG. 8 is a sectional view of a main part of a second conventional example.

FIG. 9 is a sectional view of a main part of a third conventional example.

[Explanation of symbols]

 1 rubber material 2 water-sealing rib 3 seat 4 cabin 7 flange 8 receiving surface 9 window frame 10 run channel 15 recess 16 slit 19 window frame

Claims (4)

[Claims] 1. A window frame (9) having a Y-shaped cross section, a run channel (10) fitted inside the frame, and between the frame (9) and the opening edge of the cabin (4). A rubber material (1) to be inserted, and the rubber material (1) has a U-shaped recess (15) for holding the back surface and the outer surface of the frame (9), a deep groove slit (16), Seat located behind the recess (15)
This rubber material (1) has a window frame (9) fitted in the recess (15) and a flange (7) at the cabin opening edge fitted in the slit (16). Seated and seated
With the (3) seated on the receiving surface (8) at the edge of the cabin opening, the window frame
(19) Holding structure for a sliding window frame of a construction machine, characterized in that it holds. 2. The sliding window according to claim 1, wherein the rubber material (1) has a substantially S-shaped basic sectional shape in which the concave portion (15) and the slit (16) are arranged side by side in the opposite direction. Frame mounting structure. 3. The sliding window frame mounting structure according to claim 1, wherein the sliding window frame has a basic cross-sectional shape in which a recess (15) and a slit (16) are arranged back to back and have different upper and lower groove widths. . 4. The sliding window according to claim 2, wherein the rubber material (1) has a cross-sectional shape with a water-sealing rib (2) extending from the outdoor end of the basic cross-sectional shape to the side opposite to the concave portion. Frame mounting structure.