JP2015196998A - Modular cab protection system, work machine, and modular method of cab protection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a modular cab protection system that is low cost and facilitates installation and replacement.SOLUTION: A modular cab protection system 20 protects a cab from a flying object by installing a guard outside the cab for work machines of multiple models. The system includes: protective boards 21a, 21b having transparency, having at least width X modularized to one kind, and used in common by the work machines of the multiple models; and a dedicated frame 22a every model having an exclusive installing part every model of the work machines, and having the width of an inner slope modularized to one kind to clamp both ends in the lateral direction of the protective boards.

Description

  The present invention relates to a system for protecting a driver's cab provided in a work machine such as a shovel car or a crane car used for crushed stone work, demolition work, deforestation work, etc., and is particularly inexpensive and facilitates mounting and replacement. Furthermore, the present invention relates to a modular cab protection system that can prevent even a small flying object without lowering visibility.

  Conventionally, work machines used for crushed stone work, demolition work, deforestation work, etc. have been provided with cab guards to protect flying rocks and debris from colliding with the front glass and skylight glass of the cab. ing.

  The cab guard is generally a metal grid or net (Patent Documents 1 to 4), but has a problem that visibility is lowered and a slender projectile such as a reinforcing bar cannot be reliably prevented. is there.

  Then, the cab guard which can prevent a thin flying object, without reducing visibility by comprising by a transparent resin board with high impact resistance is proposed (patent documents 5-6).

JP 2011-84876 A JP 2010-31471 A JP 2003-328396 A JP-A-9-228422 JP 2001-97250 A Japanese Utility Model Publication No. 6-16158

  Thus, if a cab guard is comprised with a highly impact-resistant transparent board, a thin flying object can be prevented, without reducing visibility. However, a transparent plate having high impact resistance that can prevent heavy flying objects such as reinforcing bars and logs is expensive.

  On the other hand, there are various types of work machines for each manufacturer, and the shape of the operator's cab is also different, so cab guards must be made for each model, especially for models with low production volume, resulting in lower prices due to mass production effects. I can't hope to plan. In addition, since such a cab guard is expensive, not versatile, and it is difficult to predict when it will break, it will not be made realistically, so if it breaks, it will take a lot of time to complete the replacement In the meantime, the work machine cannot be used and the work is delayed.

  The present invention has been made in consideration of the above-described conventional problems, and an object thereof is to provide a modular cab protection system that is inexpensive and easy to install and replace. It is another object of the present invention to provide a modularized cab protection system that can prevent even a small flying object without reducing visibility. It is another object of the present invention to provide a work machine equipped with the modularized cab protection system. It is another object of the present invention to provide a modularization method for a cab protection system that is inexpensive and easy to install and replace.

  The modular cab protection system according to the present invention is a modular cab protection system that protects the cab from flying objects by attaching a guard to the outside of the cab for a plurality of types of work machines. , Having transparency, modularized into at least one horizontal width, having a protective plate shared by the plurality of types of work machines, a dedicated attachment for each type of work machine, Is modularized into one type, and includes a dedicated frame for each model that holds both ends of the protective plate in the lateral direction.

  In the modularized cab protection system, the protective plate is further modularized into a plurality of types of vertical widths, and the dedicated frame for each model has an internal vertical width of one of the protective plates. It is preferable that the dimensions are a combination of more than one type, and a plurality of the protective plates are fixed.

  Also, in the modularized cab protection system, whether the dedicated frame for each model is a natural number of two or more times the vertical width of the standard protective plate, which is one of the protective plates, of the internal law Or it is preferable that it is the dimension which added the natural number multiple of the vertical width of one kind of protective plates other than the said standard protective plate to the natural number multiple of the vertical width of the said standard protective plate.

  Further, in the modularized cab protection system, the protective plate is further modularized into one type of vertical width, and the dedicated frame for each model has an internal length of 2 or more of the vertical width of the protective plate. It is preferable to fix a plurality of the protection plates.

  In the modular cab protection system, it is preferable that a transparent solid material is filled between the adjacent protection plates.

  Further, in the modularized cab protection system, the protection plate is a flat plate, and the dedicated frame includes a horizontal frame that sandwiches both lateral ends of the protection plate, and a lower frame that restrains the lower side of the protection plate. Preferably, it includes an upper opening through which the protective plate is inserted and removed from above, and an upper lid that is detachably mounted so as to close the upper opening.

  In the modularized cab protection system, it is preferable that the protection plate has a laminated structure of glass and a bulletproof film and is entirely transparent except for a portion restrained by the dedicated frame.

  A work machine according to the present invention is equipped with the modularized cab protection system.

  The modularization method of the cab protection system according to the present invention is a modularization method of a system that protects the cab from flying objects by attaching a guard to the outside of the cab for multiple types of work machines. In the special frame for each model, the protective plate having transparency is modularized into at least one horizontal width, the protective plate is shared by the plurality of types of work machines, and each type of work machine has a dedicated mounting part. The horizontal width of the inner method is modularized into one type, and both ends in the horizontal direction of the protective plate are sandwiched between the dedicated frames.

  Further, in the modularization method of the cab protection system, the protection plate is a flat plate, the lower side of the protection plate is restrained by the dedicated frame, and the protection plate is taken in and out from the upper opening of the dedicated frame, It is preferable that the upper lid is detachably attached so as to close the upper opening.

  The modularized cab protection system, work machine, and modularization method of the cab protection system according to the present invention are such that the width of the guard plate is modularized into one type, and the guard plate is shared by a plurality of types of work machines. Therefore, it can be expected that the price of the protective plate will decrease due to the mass production effect. In addition, since the protective plate is versatile and does not require special processing, if the protective plate attached to the work machine is damaged, it can be replaced in a relatively short time, so the work machine cannot be used. It is unlikely that work will be delayed. Furthermore, by making the protective plate a laminated structure of glass and a bulletproof film, it is possible to prevent thin flying objects without reducing visibility.

FIG. 1 is a side view showing an appearance of a first work machine according to the first embodiment. FIG. 2 is a side view showing an appearance of the second work machine according to the first embodiment. FIG. 3 is a schematic view showing an external appearance of a modular cab protection system equipped for protecting the front glass of the first work machine. FIG. 4 is a schematic diagram showing an external appearance of a modular cab protection system equipped for protecting the skylight glass of the first work machine. FIG. 5 is a schematic view showing the external appearance of a modularized cab protection system equipped for protecting the front glass of the second work machine. FIG. 6 is a schematic view showing the external appearance of a modularized cab protection system equipped for protecting the skylight glass of the second work machine. FIG. 7 is a detailed view of the dedicated frame. FIG. 8 is a schematic diagram showing an external appearance of a modularized cab protection system equipped for protecting the front glass of the first work machine according to the second embodiment. FIG. 9 is a schematic diagram illustrating an external appearance of a modularized cab protection system equipped for protecting the skylight glass of the first work machine according to the second embodiment. FIG. 10 is a schematic diagram illustrating an external appearance of a modularized cab protection system equipped for protecting the front glass of the second work machine according to the second embodiment. FIG. 11 is a schematic diagram showing an external appearance of a modularized cab protection system equipped for protecting the skylight glass of the second work machine according to the second embodiment.

<Embodiment 1>
FIG. 1 is a side view showing an appearance of a first work machine 1 according to the first embodiment. FIG. 2 is a side view showing an appearance of the second work machine 11 according to the first embodiment. The first work machine 1 is a shovel car of about 14t class, for example, and is provided with a cab 2. The second work machine 11 is a shovel car of about 20 t class, for example, and is provided with a cab 12. Note that the size of the driver's cab is about the same whether it is a shovel car of about 14t class or a shovel car of about 20t class.

  The cab 2 is provided with a front glass 3, a skylight glass 4, a door 5, a left side glass 6, a right side glass, a front guard lug, a skylight guard lug, and a modular cab protection system 20.

  The cab 12 is provided with a front glass 13, a skylight glass 14, a door 15, a left side glass 16, a right side glass, a front guard lug, a skylight guard lug, and a modular cab protection system 20.

  Front glass 3, skylight glass 4, left side glass 6, right side glass provided in cab 2, front glass 13, skylight glass 14, left side glass 16 and right side glass provided in cab 12 include For example, safety glass that is used for windshields of ordinary passenger cars is used so that it does not scatter and cause injury to workers if it breaks.

  The front guard lug provided in the cab 2 is a fixing mechanism provided to fix and attach the existing front guard for the first work machine 1. The front guard lug has, for example, a threaded hole formed in the center of a cylindrical projection, and the existing front guard is attached by screwing a bolt or the like into the front guard lug from above the existing front guard. be able to.

  The skylight guard lug provided in the cab 2 is a fixing mechanism provided to fix and attach the existing skylight guard for the first work machine 1. The skylight guard lug has, for example, a screw hole in the center of a cylindrical projection, similar to the front guard lug provided in the cab 2, and bolts or the like are placed on the skylight guard lug from above the existing skylight guard. The existing skylight guard can be fixed by screwing and fixing.

  The front guard lug provided in the cab 12 is a fixing mechanism provided to fix and attach the existing front guard for the second work machine 11. The front guard lug has, for example, a threaded hole formed in the center of a cylindrical projection, and the existing front guard is attached by screwing a bolt or the like into the front guard lug from above the existing front guard. be able to.

  The skylight guard lug provided in the cab 12 is a fixing mechanism provided to fix and attach the existing skylight guard for the second work machine 11. The skylight guard lug has, for example, a screw hole in the center of a cylindrical projection, as in the case of the front guard lug provided in the cab 12. A bolt or the like is placed on the skylight guard lug from above the existing skylight guard. The existing skylight guard can be fixed by screwing and fixing.

  The first work machine 1 and the second work machine 11 are each equipped with a modularized cab protection system 20. The modularized cab protection system can protect the cab from flying objects by attaching a guard to the outside of the cab for multiple types of work machines. In general, there are work machines of various sizes, but the operator's cab usually has enough space for one operator to operate, so the size often does not change so much. Modular cab protection systems can be installed on large work machines.

  FIG. 3 is a schematic diagram showing the external appearance of the modularized cab protection system equipped for protecting the front glass of the first work machine 1. FIG. 4 is a schematic diagram showing the external appearance of the modularized cab protection system equipped for protecting the skylight glass of the first work machine 1. FIG. 5 is a schematic diagram showing the external appearance of the modularized cab protection system equipped for protecting the front glass of the second work machine 11. FIG. 6 is a schematic view showing the external appearance of a modular cab protection system equipped for protecting the skylight glass of the second work machine 11.

  The modularized cab protection system 20 shown in FIGS. 3 to 6 includes a shared protection plate (standard protection plate 21a, adjustment protection plate 21b) and dedicated frames for each model (dedicated frame 22a, dedicated frame 22b, dedicated frame). 22c and a dedicated frame 22d).

  The shared protection plate has transparency, and at least the width X is modularized into one type, and is shared by a plurality of types of work machines. For example, if the horizontal width X of the shared protection plate is modularized to 760 mm, it can be adapted to most work machines currently on the market.

  The protective plate shared in the first embodiment includes a standard protective plate 21a having a horizontal width X of 760 mm, a vertical width A of 727 mm, and an adjusting protective plate 21b having a vertical width B of 450 mm. In addition, by making the vertical dimension of the maximum protective plate to be equal to or smaller than the horizontal dimension, the long sides of all protective plates become the horizontal dimension, making it easy to handle from various viewpoints such as manufacturing, transportation, storage, etc. Therefore, further cost reduction can be expected.

  In addition, the shared protection plate needs to have both the required strength and transparency. For example, it is made of a material such as reinforced plastic or tempered glass. It is preferable that it is the laminated structure of. Further, the shared protective plate is preferably transparent as a whole except for a portion restrained by a dedicated frame for each model. Examples of the reinforced plastic include organic glass such as polycarbonate used for optical disks and helmets, and methacrylic resin used for canopy materials for fighters. In addition, the shared protection plate is basically a flat plate, but the strength is improved by applying a shape change such as bending with a certain curvature, partially changing the thickness, or adding unevenness. It is preferable to improve. More specifically, for example, when a shared protective plate is made of reinforced plastic, the shape can be changed relatively easily. Therefore, it is preferable to improve the strength by performing the shape change as described above. On the other hand, when the protective plate used in common is manufactured from tempered glass or has a laminated structure including glass, it is preferable to use a flat plate that is not curved for cost reduction.

  The dedicated frame for each model has a dedicated mounting portion for each model of the work machine, and the width of the inner method is modularized into one type, and sandwiches both ends of the shared protection plate in the horizontal direction. In the first embodiment, the dedicated frame for each model is composed of a dedicated frame 22a, a dedicated frame 22b, a dedicated frame 22c, and a dedicated frame 22d, and all these inner widths are modularized to 760 mm. The dedicated frame 22 a has an inner width of 760 mm and an inner height of 1627 mm, and is used for protecting the front glass 3 of the first work machine 1. The dedicated frame 22 b has an inner width of 760 mm and an inner height of 1177 mm, and is used for protecting the skylight glass 4 of the first work machine 1. The dedicated frame 22 c has an inner width of 760 mm and an inner height of 1904 mm, and is used for protecting the front glass 13 of the second work machine 11. The dedicated frame 22d has an inner width of 760 mm and an inner height of 1454 mm, and is used to protect the skylight glass 14 of the second work machine 11.

  In addition, in the protective plate that is shared, the vertical width is modularized into multiple types, and the dedicated frame for each model has a dimension that combines one or more types of protective plates that share the internal vertical width, It is preferable to fix a plurality of shared protective plates. When a plurality of protection plates are fixed, it is preferable that the visibility is not lowered by filling transparent solid materials such as optical grease, balsam, and transparent resin between adjacent protection plates.

For example, the dedicated frame for each model has a natural width W (not shown) of 2 or more of the vertical width A (727 mm) of the standard protective plate 21a which is one of the shared protective plates. It is several times (Equation 1), or the vertical width B of one type of protective plates other than the standard protective plate 21a (for example, the adjusted protective plate 21b) is a natural number multiple of the vertical width A of the standard protective plate 21a. It is a dimension obtained by adding a natural number multiple of (450 mm) (Equation 2).
W = A × (N + 1) (Equation 1)
W = A × N + B × M (Equation 2)
N and M are natural numbers

  As shown in FIG. 3, the dedicated frame 22 a is provided at a position where the mounting portion 23 a faces the front guard lug provided in the cab 2, and in the same manner as fixing the existing front guard, A dedicated frame 22 a is fixed so as to cover the glass 3.

The dedicated frame 22a is equipped with one standard protective plate 21a and two adjustment protective plates 21b with almost no gap. Therefore, the inner vertical length Wa (not shown) of the dedicated frame 22a is given by (Equation 3).
Wa = 727 mm × 1 + 450 mm × 2 = 1627 mm (Equation 3)

  As shown in FIG. 4, the dedicated frame 22 b is provided at a position where the mounting portion 23 b faces the skylight guard lug provided in the cab 2, and the first work machine 1 is fixed in the same manner as fixing the existing skylight guard. The special frame 22b is fixed so as to cover the skylight glass 4 of the window.

The dedicated frame 22b is equipped with one standard protective plate 21a and one adjustment protective plate 21b with almost no gap. Accordingly, the inner vertical width Wb (not shown) of the dedicated frame 22b is given by (Equation 4).
Wb = 727 mm × 1 + 450 mm × 1 = 1177 mm (Expression 4)

  As shown in FIG. 5, the dedicated frame 22 c is provided at a position where the mounting portion 23 c faces the front guard lug provided in the cab 12, and the second work machine 11 is fixed in the same manner as fixing the existing front guard. A dedicated frame 22c is fixed so as to cover the front glass 13 of the first frame.

The dedicated frame 22c is equipped with two standard protection plates 21a and one adjustment protection plate 21b with almost no gap. Therefore, the inner vertical width Wc (not shown) of the dedicated frame 22c is given by (Equation 5).
Wc = 727 mm × 2 + 450 mm × 1 = 1904 mm (Expression 5)

  As shown in FIG. 6, the dedicated frame 22 d is provided at a position where the mounting portion 23 d faces the skylight guard lug provided in the cab 12, and the second work machine 11 is fixed in the same manner as fixing the existing skylight guard. The special frame 22d is fixed so as to cover the skylight glass 14 of the camera.

The dedicated frame 22d is equipped with two standard protective plates 21a with almost no gap. Accordingly, the inner vertical width Wd (not shown) of the dedicated frame 22d is given by (Equation 6).
Wd = 727 mm × 2 = 1454 mm (Equation 6)

  FIG. 7 is a detailed view of the dedicated frame 22a. As shown in FIG. 7, when the shared protection plate is a flat plate, the dedicated frame 22 a includes the mounting portion 23 a described above, the horizontal frame 24 that holds both ends of the protection plate in the horizontal direction, and the bottom of the protection plate. It is preferable to include a lower frame 25 that restrains the side, an upper opening 26 through which the protective plate is inserted and removed, and an upper lid 27 that is detachably mounted so as to close the upper opening 26. The dedicated frame 22a sandwiches both lateral ends of the protective plate shared by the horizontal frame 24, restrains the lower side of the protective plate by the lower frame 25, puts and removes the shared protective plate from the upper opening 26, and It is preferable to detachably attach the upper lid 27 so as to close the opening 26.

  In addition, in the exclusive frame 22a, although the attaching part 23a is attached to the front guard lug provided in the cab 2, the object to which the attaching part 23a is attached is not limited to the lug, and any other thing may be used. For example, the dedicated frame 22a may be attached to the exterior accessory of the cab 2 such as a pole by using a separate mounting bracket or the like. The structure of the dedicated frame (dedicated frame 22b, dedicated frame 22c, dedicated frame 22d) for each other model is the same as the structure of the dedicated frame 22a. Further, in the dedicated frame 22a and the dedicated frame 22c, it is preferable to follow the shape of the cab by attaching a hinge or the like at a position P between the protective plate and the protective plate so that the horizontal frame 24 can be bent.

  In the modularized cab protection system 20 according to the first embodiment, the width of the protective plate is modularized into one type, and the protective plate is shared by a plurality of types of work machines. . In addition, since the protective plate is versatile and does not require special processing, if the protective plate attached to the work machine is damaged, it can be replaced in a relatively short time, so the work machine cannot be used. It is unlikely that work will be delayed. In addition, when using a plurality of protection plates, only the damaged protection plate needs to be replaced, so that replacement is simple and inexpensive. Furthermore, by making the protective plate a laminated structure of glass and a bulletproof film, it is possible to prevent thin flying objects without reducing visibility. In addition, when using multiple protection plates, the boundary between the protection plates is reduced by reducing the visibility by filling the adjacent protection plates with transparent solid materials such as optical grease, balsam and transparent resin. Can do.

<Embodiment 2>
The first work machine 1 and the second work machine 11 are equipped with the modularized cab protection system 120 according to the second embodiment.
FIG. 8 is a schematic diagram showing an external appearance of the modularized cab protection system 120 equipped for protecting the front glass of the first work machine 1 according to the second embodiment. FIG. 9 is a schematic diagram illustrating an appearance of a modularized cab protection system 120 equipped for protecting the skylight glass of the first work machine 1 according to the second embodiment. FIG. 10 is a schematic diagram illustrating an appearance of a modularized cab protection system 120 equipped for protecting the front glass of the second work machine 11 according to the second embodiment. FIG. 11 is a schematic diagram illustrating an appearance of a modularized cab protection system 120 equipped for protecting the skylight glass of the second work machine 11 according to the second embodiment.

  The modularized cab protection system 120 shown in FIGS. 8 to 11 includes a shared protection plate (protection plate 121) and dedicated frames for each model (dedicated frame 122a, dedicated frame 122b, dedicated frame 122c, and dedicated frame 122d). With.

  The shared protection plate has transparency, the width X is modularized into one type, and the vertical width C is modularized into one type, and is shared by a plurality of types of work machines. For example, the protective plate shared in the second embodiment is only the protective plate 121 in which the horizontal width X is modularized to 760 mm and the vertical width C is modularized to 150 mm.

  The dedicated frame for each model has a dedicated mounting portion for each model of the work machine, and the width of the inner method is modularized into one type, and sandwiches both ends of the shared protection plate in the horizontal direction. In the second embodiment, the dedicated frame for each model is composed of a dedicated frame 122a, a dedicated frame 122b, a dedicated frame 122c, and a dedicated frame 122d, and all these inner widths are modularized to 760 mm. The dedicated frame 122 a has an inner width of 760 mm and an inner height of 1650 mm, and is used for protecting the front glass 3 of the first work machine 1. The dedicated frame 122 b has an inner width of 760 mm and an inner height of 1200 mm, and is used for protecting the skylight glass 4 of the first work machine 1. The dedicated frame 122 c has an inner width of 760 mm and an inner height of 1950 mm, and is used for protecting the front glass 13 of the second work machine 11. The dedicated frame 122 d has an inner width of 760 mm and an inner height of 1500 mm, and is used for protecting the skylight glass 14 of the second work machine 11.

  In addition, it is preferable not to reduce visibility by filling transparent solid materials such as optical grease, balsam, and transparent resin between adjacent protective plates.

For example, in the dedicated frame for each model, the vertical width W (not shown) of the internal method is a natural number multiple of 2 or more of the vertical width C (150 mm) of the protective plate 121 which is a shared protective plate (several numbers) 7).
W = C × (N + 1) (Expression 7)
Where N is a natural number

  As shown in FIG. 8, the dedicated frame 122 a is provided with a mounting portion 23 a at a position facing the front guard lug provided in the cab 2 to fix the existing front guard, similarly to the dedicated frame 22 a of the first embodiment. Similarly to the above, the dedicated frame 122a is fixed so as to cover the front glass 3 of the first work machine 1.

Eleven protective plates 121 are mounted on the dedicated frame 122a with almost no gap. Accordingly, the inner vertical length Wa (not shown) of the dedicated frame 122a is given by (Equation 8).
Wa = 150 mm × 11 = 1650 mm (Equation 8)

  As shown in FIG. 9, the dedicated frame 122 b is provided with a mounting portion 23 b at a position facing the skylight guard lug provided in the cab 2 to fix the existing skylight guard, similarly to the dedicated frame 22 b of the first embodiment. Similarly to the above, the dedicated frame 122b is fixed so as to cover the skylight glass 4 of the first work machine 1.

The dedicated frame 122b is equipped with one protective plate 121 with almost no gap. Accordingly, the inner vertical width Wb (not shown) of the dedicated frame 122b is given by (Equation 9).
Wb = 150 mm × 8 = 1200 mm (Equation 9)

  As shown in FIG. 10, the dedicated frame 122c is provided at a position where the mounting portion 23c faces the front guard lug provided in the cab 12 to fix the existing front guard, similarly to the dedicated frame 22c of the first embodiment. Similarly to the above, the special frame 122c is fixed so as to cover the front glass 13 of the second work machine 11.

In the dedicated frame 122c, 13 protection plates 121 are provided with almost no gap. Therefore, the inner vertical width Wc (not shown) of the dedicated frame 122c is given by (Equation 10).
Wc = 150 mm × 13 = 1950 mm (Equation 10)

  As shown in FIG. 11, the dedicated frame 122 d is provided with a mounting portion 23 d at a position facing the skylight guard lug provided in the cab 12 to fix the existing skylight guard, similarly to the dedicated frame 22 d of the first embodiment. In the same manner as described above, the dedicated frame 122d is fixed so as to cover the skylight glass 14 of the second work machine 11.

The dedicated frame 122d is equipped with a single protective plate 121 with almost no gap. Accordingly, the inner vertical width Wd (not shown) of the dedicated frame 122d is given by (Equation 11).
Wd = 150 mm × 10 = 1500 mm (Expression 11)

  Details of the dedicated frame 122a, the dedicated frame 122b, the dedicated frame 122c, and the dedicated frame 122d are the same as those of the dedicated frame 22a of the first embodiment.

  In the modularized cab protection system 120 according to the second embodiment, the horizontal and vertical widths of the protective plate are modularized into one type, and the protective plate is shared by multiple types of work machines. The price of the protective plate can be expected to decrease. In addition, since the protective plate is versatile and does not require special processing, if the protective plate attached to the work machine is damaged, it can be replaced in a relatively short time, so the work machine cannot be used. It is unlikely that work will be delayed. In the second embodiment, a plurality of protective plates having a shorter vertical width than that in the first embodiment are used. Therefore, when only a damaged protective plate is replaced, the replacement is easier and less expensive than the first embodiment. Furthermore, by making the protective plate a laminated structure of glass and a bulletproof film, it is possible to prevent thin flying objects without reducing visibility. Further, by filling a transparent solid material such as optical grease, balsam, and transparent resin between adjacent protective plates, it is possible to reduce the visibility of the boundary between the protective plates.

  The modularized cab protection system 20 according to the first embodiment and the modular cab protection system 120 according to the second embodiment further include the left side glass 6, the right side glass provided in the cab 2, the left side glass 16, and the like. A special frame fixed to cover the side glass such as the right side glass provided in the cab 12 may be provided, or a dedicated frame fixed to cover the front glass, and fixed to cover the skylight glass. It is also possible to provide at least one dedicated frame among the dedicated frame and the dedicated frame fixed so as to cover the side glass. In particular, since the visibility of the front glass is regarded as most important, it is fixed to the modularized cab protection system 20 of the first embodiment and the modularized cab protection system 120 of the second embodiment so as to cover the front glass. By protecting only the front glass by providing only a special frame, and protecting the skylight glass and side glass with other cheaper cab guards, the front visibility is not lowered and it is cheaper The cab can be protected.

DESCRIPTION OF SYMBOLS 1 1st work machine 2 Driver's cab 3 Front glass 4 Skylight glass 5 Door 6 Left side glass 11 2nd Work machine 12 Driver's room 13 Front glass 14 Skylight glass 15 Door 16 Left side glass 20 Modular cab protection system 21a Standard protection Plate 21b Adjustable protection plate 22a, 22b, 22c, 22d Dedicated frame 23a, 23b, 23c, 23d Mounting portion 24 Horizontal frame 25 Lower frame 26 Upper opening 27 Upper lid 120 Modularized cab protection system 121 Guard plate 122a, 122b, 122c, 122d dedicated frame

Claims (10)

A modular cab protection system that protects the cab from flying objects by attaching a guard to the outside of the cab for multiple types of work machines,
A protective plate having transparency, having at least one horizontal width modularized, and being shared by the plurality of types of work machines;
Each work machine has a dedicated attachment for each model, the inner width is modularized into one type, and a dedicated frame for each model that holds both ends of the protective plate in the horizontal direction is provided. Modular cab protection system. The protective plate further includes:
The vertical width is modularized into multiple types,
The dedicated frame for each model is
2. The modularized cab protection system according to claim 1, wherein a vertical width of an inner method is a dimension obtained by combining one or more types of the protection plates, and a plurality of the protection plates are fixed. The dedicated frame for each model is
The vertical width of the internal law is a natural number multiple of 2 or more of the vertical width of the standard protective plate, which is one of the protective plates, or the standard width is a natural number multiple of the vertical width of the standard protective plate. The modularized cab protection system according to claim 2, which is a dimension obtained by adding a natural number times the vertical width of one of the protection plates other than the protection plate. The protective plate further includes:
The vertical width is modularized into one type.
The dedicated frame for each model is
The modularized cab protection system according to claim 1, wherein a vertical width of an inner method is a natural number multiple of 2 or more of a vertical width of the protection plate, and a plurality of the protection plates are fixed.   The modularized cab protection system according to any one of claims 2 to 4, wherein a transparent solid material is filled between the adjacent protection plates. The protective plate is
A flat plate,
The dedicated frame is
A lateral frame that sandwiches both lateral ends of the protective plate;
A lower frame for restraining the lower side of the protective plate;
An upper opening through which the protective plate is inserted and removed from above;
The modularized cab protection system according to any one of claims 1 to 5, further comprising an upper lid that is detachably mounted so as to close the upper opening. The protective plate is
The modularized cab protection system according to any one of claims 1 to 6, wherein the modularized cab protection system has a laminated structure of glass and a bulletproof film, and is entirely transparent except for a portion restrained by the dedicated frame.   A work machine comprising the modularized cab protection system according to any one of claims 1 to 7. A modularization method for a system that protects the operator's cab from flying objects by attaching a guard to the outside of the operator's cab for multiple types of work machines,
A protective plate having transparency is modularized into at least one horizontal width, and the protective plate is shared by the plural types of work machines,
In a dedicated frame for each model having a dedicated mounting portion for each type of work machine, the width of the inner method is modularized into one type, and both lateral ends of the protective plate are sandwiched between the dedicated frames. To modularize the operator's cab protection system. The protective plate is a flat plate,
The lower side of the protective plate is restrained by the dedicated frame,
From the upper opening of the dedicated frame, put out the protective plate,
The modularization method of the driver's cab protection system according to claim 9, wherein an upper lid is detachably attached so as to close the upper opening.

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