JP5208050B2 - Glass mounting structure - Google Patents

Description

  The present invention relates to a glass mounting structure provided in a window of a cab of a work machine such as a hydraulic excavator.

  There exists a thing shown by patent document 1 as this type of prior art. This patent document 1 shows a structure for attaching a window glass of a driver's cab of a hydraulic excavator, which forms an outer shell of the driver's cab and is attached to the panel so as to face the opening. A window glass, an adhesive that bonds the window glass to the panel, a lip that contacts the glass over the entire periphery of the glass, and a lip spacer that has a fitting groove into which the panel end is fitted. It has a configuration with.

  However, the one disclosed in Patent Document 1 is difficult to position the window glass with respect to the panel, and it is difficult to expect an improvement in the efficiency of the glass mounting operation. For this reason, conventionally, a glass mounting structure including a positioning bush for positioning glass has been proposed. This conventionally proposed glass mounting structure includes a panel having an opening that forms a driver's cab window, glass that is mounted on the panel so as to face the opening, and is disposed on the panel to form glass. It is provided corresponding to each side, and has a configuration including a positioning bush for positioning the glass and an adhesive for bonding the glass to the panel.

JP 2004-90833 A

  In the conventional mounting structure provided with the positioning bush described above, the glass can be positioned with respect to the panel by the positioning bush when the glass is mounted on the panel, so that this glass mounting operation can be performed efficiently. However, since the end face of the corner where the two sides forming the glass to be attached intersect is exposed, there is a concern that the glass may be damaged if any external force is applied to the end face of the corner. Is done. Further, since it is necessary to provide positioning bushes for each side of the glass, the number of positioning bushes increases, and the manufacturing cost tends to increase.

  The present invention was made from the actual state in the above-described prior art, and the purpose thereof is to protect the end face of the corner where two sides forming the glass meet from an external force and to position the glass for positioning the glass. The object is to provide a glass mounting structure capable of reducing the number.

In order to achieve this object, a glass mounting structure according to the present invention includes a panel having an opening, glass mounted on the panel so as to face the opening, and the glass disposed on the panel. In a glass mounting structure comprising a positioning bush for positioning and an adhesive for adhering the glass to the panel, the positioning bush is fixed to the panel and positions a corner where the two sides of the glass meet. together, look including the two sides positioning bush which can cover the end face of the corner, the two sides positioning bushing has two sides which are provided continuously to each of the two sides of the glass, in plan view It is characterized by a substantially triangular shape .

Since this invention comprised in this way was equipped with the bush for 2 side positioning which can coat | cover the end surface of the corner where two sides of glass cross | intersect, the corner where two sides of glass cross | intersect by this 2 side positioning bush The end face of the can be protected from external force. In addition, since one two-side positioning bush can simultaneously position two sides forming the glass, the number of positioning bushes for positioning the glass can be reduced. Further, the present invention provides a two-side positioning bushing having a substantially triangular shape in plan view connected to each of the two sides of the glass even when the corners are formed by cutting the two intersecting portions forming the glass. The two-sided shape of the outer shape in plan view that combines the glass corner and the two-side positioning bush is cut to form a corner before the corner is formed, that is, the two sides are extended to intersect each other. It can form in the shape which has a part. Thereby, it can form in the shape approximated to the natural whole shape of the glass before cutting a corner part.

  In the glass mounting structure according to the present invention, in the above invention, a hole is formed in the panel, and the two-side positioning bush has a tongue piece inserted into the hole, and the two-side positioning The two-side positioning bush is fixed to the panel by inserting the tongue piece of the bush into the hole of the panel.

  In the present invention configured as described above, a fixing means for fixing the two-side positioning bush to the panel is formed by the hole formed in the panel and the tongue piece portion of the two-side positioning bush. Apart from the bush, there is no need to provide a fixing means for fixing the two-side positioning bush, and an increase in the number of components can be suppressed.

  The glass mounting structure according to the present invention is the glass mounting structure according to the present invention, wherein the two-side positioning bush includes a step portion capable of positioning a corner portion where the two sides of the glass intersect and covering an end surface of the corner portion. It has the positioning part.

  In the present invention configured as described above, the positioning portion of the two-side positioning bush for positioning the corner portion where the two sides of the glass intersect can be easily formed by the step portion.

  The glass mounting structure according to the present invention is characterized in that, in the above invention, the two-side positioning bush also serves as a support member that receives the weight of the glass and supports the glass.

  In the present invention configured as described above, since the two-side positioning bush receives the weight of the glass, it is not necessary to separately provide a support member for supporting the glass, and an increase in the number of components can be suppressed.

Since the positioning bush for positioning the glass includes a two-side positioning bush that is fixed to the panel, positions the corner where the two sides of the glass intersect, and can cover the end face of the corner. The end face of the corner where the two sides of the glass meet can be protected from external force by the two-side positioning bush, and the glass can be prevented from being damaged when the external force that has been conventionally proposed is applied to the end face of the corner. . In addition, since two two-side positioning bushes can be positioned at the same time, the number of positioning bushes for positioning the glass can be reduced as compared to the prior art. Costs can be reduced. Further, the present invention provides a two-side positioning bushing having a substantially triangular shape in plan view connected to each of the two sides of the glass even when the corners are formed by cutting the two intersecting portions forming the glass. The two-sided shape of the outer shape in plan view that combines the glass corner and the two-side positioning bush is cut to form a corner before the corner is formed, that is, the two sides are extended to intersect each other. It can form in the shape which has a part. Thereby, it can form in the shape approximated to the natural whole shape of the glass before cutting a corner part.

It is a side view which shows the operator's cab of the working machine with which one Embodiment of the glass attachment structure which concerns on this invention is provided. It is a side view showing one embodiment of the glass attachment structure concerning the present invention. 2 is an enlarged cross-sectional view of the main part of FIG. 2, (a) FIG. 2 is an enlarged cross-sectional view of A in FIG. 2, (b) is an enlarged cross-sectional view of B in FIG. It is a cross-sectional enlarged view. It is a side view which shows the glass with which the glass attachment structure which concerns on this invention is equipped. It is a principal part side view which shows the panel part of the cab with which the glass attachment structure concerning this embodiment is equipped. 2A and 2B are diagrams showing a two-side positioning bush provided in the glass mounting structure according to the present embodiment, wherein FIG. 1A is a plan view, FIG. 2B is a rear view, FIG. 2C is a perspective view, and FIG. FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a glass mounting structure according to the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing a cab of a work machine provided with an embodiment of the glass mounting structure according to the present invention, FIG. 2 is a side view showing an embodiment of the glass mounting structure according to the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of FIG. 2, (a) FIG. 2 is an enlarged cross-sectional view of FIG. 2A, (b) is an enlarged cross-sectional view of FIG. 2B, and (c) is a cross-sectional view of FIG. It is an enlarged view. 4 is a side view showing the glass provided in the glass mounting structure according to the present invention, FIG. 5 is a side view of the main part showing the panel portion of the cab provided in the glass mounting structure according to the present embodiment, and FIG. The figure which shows the bush for 2 side positioning provided in the glass attachment structure which concerns on a form, (a) A figure is a top view, (b) A figure is a back view, (c) A figure is a perspective view, (d) A figure is a side view is there.

  A working machine provided with an embodiment of the glass mounting structure according to the present invention is, for example, a hydraulic excavator, and includes a driver's cab 1 arranged on a revolving body (not shown) as shown in FIG. On the left side of the cab 1 is a door 2 that is opened and closed when the operator gets on and off. A lateral window 3 is provided at the rear portion of the door 2.

  FIG. 2 shows a state where the door 2 is removed from the cab 1 shown in FIG. The side window 3 is provided with the glass mounting structure according to the present embodiment. The glass mounting structure according to this embodiment forms a shell of the cab 1 and has a metal panel 4 having an opening 4a, and a glass 5 attached to the panel 4 so as to face the opening 4a. , A positioning bush described later for positioning the glass 5 disposed on the panel 4, and an adhesive 7 for bonding the glass 5 to the panel 4.

  As shown in FIGS. 3A and 3C, the panel 4 has a recess 4c that determines the formation region of the side window 3, and has a hole 4b on the lower left side as shown in FIG. ing.

  The positioning bushes described above are each made of a rubber material having elasticity, synthetic resin, or the like, and a plurality of side positioning bushes 6 disposed on the panel 4 so as to correspond to each side of the glass 5, and the panel 4. For fixing the two sides of the glass 5, that is, for positioning the corner 5 e where the two sides of the vertical side 5 c shown in FIG. 4 and the inclined side 5 d intersect with each other and covering the end face of the corner 5 e Bush 8 is included.

  As shown in FIG. 3A, the side positioning bushes 6 are arranged so as to abut against the walls 4d forming the recesses 4c of the panel 4, respectively. Each of the adhesives 7 is provided on the opening 4a side of the panel 4 with respect to the side positioning bush 6 or the two side positioning bush 8 as shown in FIGS. 3 (a), 3 (b), and 3 (c). ing.

  As shown in FIG. 6 (d), the two-side positioning bush 8 has a tongue piece 8d inserted into the hole 4b of the panel 4 described above, as shown in FIG. 3 (b). Further, the tongue piece 8 d is fixed to the panel 4 by inserting it into the hole 4 b of the panel 4.

  Further, as shown in FIGS. 6A and 6B, the two-side positioning bush 8 has two sides connected to two sides of the glass 5, that is, a vertical side connected to the above-described vertical side 5c. It has a side 8a and an inclined side 8b connected to the inclined side 5d, and is formed in a substantially triangular shape in plan view.

  Further, the two-side positioning bush 8 positions the corner 5e where the vertical side 5c and the inclined side 5d of the glass 5 shown in FIG. 4 intersect, and FIG. 3 (b) and FIG. 6 (c). (D) As shown to a figure, it has the positioning part 8c which consists of a level | step-difference part which can coat | cover the end surface of the corner part 5e. That is, as shown in FIG. 3B, the end surface of the corner 5e of the glass 5 is in contact with the surface 8c1 formed in the stepped portion of the positioning portion 8c of the two-side positioning bush 8, and the glass 5 Is positioned and supported. As shown in FIG. 2, when the two-side positioning bush 8 is disposed, the glass 5 is supported in contact with the two-side positioning bush 8 by its own weight. That is, the two-side positioning bush 8 also serves as a support member that supports the glass 5.

  As shown in FIG. 3B, the step t <b> 1 of the step portion of the positioning portion 8 c of the two-side positioning bush 8 is formed substantially equal to the thickness of the glass 5. For this reason, the glass 5 does not protrude outward from the outer surface of the two-side positioning bush 8. The thickness t2 of the positioning portion 8c of the two-side positioning bush 8 is formed to a thickness that defines the distance between the panel 4 and the glass 5. The two-side positioning bush 8 shown in FIG. 3 (b) and the like and the side positioning bush 6 shown in FIG. 3 (a) and the like having such a configuration are the openings of the opening 4a shown in FIG. Positioning of the glass 5 in the F direction along the surface and positioning of the glass 5 in the T direction defining the distance from the panel 4 are performed as shown in FIG.

  The peripheral region of the recess 4c including the side positioning bush 6 and the two-side positioning bush 8 near the wall 4d forming the recess 4c of the panel 4 and the adhesive 7 is baked with black ceramic. . Corresponding to this, as shown in FIG. 4, the black coating portion 5a is formed on the peripheral portion of the glass 5 in order to hide the black ceramic baking coating of the panel 4 and to prevent the adhesive 7 from being deteriorated by sunlight. Is provided. The inner part of the black paint part 5a is a transparent part 5b.

  In this embodiment configured as described above, when the glass 5 is attached to the panel 4, a plurality of side positioning bushes 6 are provided so as to abut against the wall 4 d of the recess 4 c of the panel 4 in correspondence with each side of the glass 5. Is attached and fixed to the panel 4, and the tongue piece 8 d of the two-side positioning bush 8 is inserted into the hole 4 b of the panel 4, and the two-side positioning bush 8 is fixed to the panel 4. In this state, the adhesive 7 is applied to a plurality of locations on the periphery of the opening 4 a of the panel 4. Finally, the glass 5 is fixed to the panel 4 with the adhesive 7 described above while being positioned by the side positioning bush 6 and the two side positioning bush 8.

  According to the glass mounting structure according to the present embodiment, the two sides of the glass 5, that is, the two-side positioning bush 8 that can cover the end surface of the corner 5e where the vertical side 5c and the inclined side 5d intersect with each other, With this two-side positioning bush 8, the end face of the corner 5e of the glass 5 can be protected from external force. Thereby, it is possible to prevent the glass 5 from being damaged due to an external force applied to the end face of the corner 4e. Moreover, since the vertical side 5c and the inclined side 5d forming the glass 5 can be simultaneously positioned by one two-side positioning bush 8, the number of positioning bushes for positioning the glass 5 can be reduced. , Production costs can be reduced.

  Further, since the hole 4b formed in the panel 4 and the tongue piece 8d of the two-side positioning bush 8 form a fixing means for fixing the two-side positioning bush 8 to the panel 4, the two-side positioning bush Apart from 8, there is no need to provide a fixing means for fixing the two-side positioning bush 8, and an increase in the number of components can be suppressed. This also contributes to reducing the production cost of the glass mounting structure according to the present embodiment.

  Further, the glass 5 is formed with a corner 5e by cutting a portion where the vertical side 5c and the inclined side 5d intersect, but the glass 5 has a plan view connected to each of the vertical side 5c and the inclined side 5d. The two-side positioning bush 8 having a substantially triangular shape, that is, the vertical side 8a and the inclined side 8b, cuts the outer shape in plan view in which the corner 5e of the glass 5 and the two-side positioning bush 8 are combined. Thus, the shape of the glass 5 before forming the corner portion 5e, that is, the shape having a corner portion can be formed by extending the vertical side 5c and the inclined side 5d and crossing each other. Thereby, it can form in the shape approximated to the natural whole shape of the glass 5 before cutting the corner 5e, and can ensure the outstanding design property.

  Further, the positioning portion 8c of the two-side positioning bush 8 for positioning the corner portion 5e where the vertical side 5c and the inclined side 5d of the glass 5 intersect can be easily formed by the stepped portion, and the two-side positioning bush. This contributes to reducing the production cost of 8.

  Further, since the two-side positioning bush 8 receives the weight of the glass 5, the glass 5 can be kept in a stable form, and a highly reliable glass mounting structure can be secured. Moreover, it is not necessary to provide a separate support member for supporting the glass 5, and an increase in the number of components can be suppressed. This also contributes to reducing the production cost of the glass mounting structure according to the present embodiment.

  In the above embodiment, the two-side positioning bush 8 is arranged at the lower left position in FIG. 2, but the corner of the upper right glass 5 in FIG. 2 or the upper left corner of the glass 5 in FIG. A configuration may be adopted in which the two-side positioning bush 8 is disposed in a portion or the like.

  Moreover, although the said embodiment is an attachment structure of the glass 5 which forms the side window 3 of the cab of a hydraulic shovel, this invention is provided in the window of the cab of working machines, such as such a hydraulic shovel. However, the present invention is not limited to this, and can be applied to any part that constitutes a window of a building or the like.

DESCRIPTION OF SYMBOLS 1 Driver's cab 3 Side window 4 Panel 4a Opening 4b Hole 4c Recess 4d Wall 5 Glass 5a Black coating part 5b Transparent part 5c Vertical side 5d Inclined side 5e Corner 6 Side positioning bush 7 Adhesive 8 Two side positioning bush 8a Vertical side 8b Inclined side 8c Positioning part 8d Tongue piece

Claims (4)

A panel having an opening, a glass mounted on the panel so as to face the opening, a positioning bush disposed on the panel for positioning the glass, and an adhesive for adhering the glass to the panel In a glass mounting structure with
The positioning bush is fixed to the panel, along with positioning the corners two sides of the glass intersect, seen including two sides positioning bush which can cover the end face of the corner portion,
2. The glass mounting structure according to claim 2, wherein the two-side positioning bush has two sides connected to the two sides of the glass and has a substantially triangular shape in plan view . The glass mounting structure according to claim 1,
A hole is formed in the panel, and the two-side positioning bush has a tongue piece inserted into the hole,
A glass mounting structure, wherein the two-side positioning bush is fixed to the panel by inserting the tongue piece portion of the two-side positioning bush into the hole of the panel. The glass mounting structure according to claim 1,
The above-mentioned two-side positioning bush has a positioning part composed of a stepped part capable of covering a corner part where two sides of the glass intersect and covering an end surface of the corner part . In the glass attachment structure of any one of Claims 1-3,
The two sides positioning bush, glass mounting structure receiving the weight of the glass, and wherein the Rukoto also serves as a support member for supporting the glass.

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