Door for working machine

Abstract

A door for a work machine includes a first portion having a first glass portion and an armrest coupled to the first glass portion. The door also includes a second portion having a frame portion and a second glass portion. The door also includes a first latch mechanism movable between a first engaged condition and a first disengaged condition. In the first engaged state, the first portion is engaged with the second portion. In the first disengaged state, the first portion is disengaged from the second portion. The door includes a second latch mechanism coupled to the second portion. The second latch mechanism is movable between a second engaged state and a second disengaged state. In the second engaged state, the second portion is engaged with a frame of a cab of the work machine. In the second disengaged state, the second portion is disengaged from the frame of the cab.

Description

Technical Field

[0001] The present invention relates to a working machine, and more particularly to a door used for the working machine. Background Art

[0002] A work machine, such as a compactor, includes a cab. The work machine can be used to perform one or more work operations, such as compaction operations. The cab typically includes a door coupled to a frame of the cab to allow an operator to board or exit the work machine. The door may also include a window portion that may provide an operator with an outside view.

[0003] An operator sitting in the cab may want to see the work operation in progress. However, the design of traditional work machine doors can limit the operator's field of view, which can reduce the efficiency of the work operation. For example, it may be desirable to monitor the edge of the work machine's roller during a compaction operation. In addition, in some cases, the door may provide limited ambient light in the cab, which may have a negative impact on the driver's driving experience. In addition, the door may be designed to be bulky and cumbersome to open and close. Therefore, improvements to the door design may be needed to address the above-mentioned deficiencies.

[0004] CN110789313 discloses a double glass door structure for a cab of engineering machinery, comprising an upper glass door and a lower glass door, which are opened and closed independently; the upper glass door and the lower glass door are both fixedly mounted on a door frame by a first hinge; a lower armrest is mounted on the lower glass door, and a support arm assembly is fixedly arranged on the upper part of the lower armrest; the present invention can expand the side view of the cab, avoid blind spots when driving, observe the engineering conditions on the side, improve the quality of work, increase work efficiency, and improve driving safety; the window can be enlarged, the lighting of the cab can be improved, and space limitation can be avoided; the cab door conforms to ergonomic design, can relieve fatigue, and improve driving experience and comfort; the sealing of the cab door after closing can be improved, the inside and outside of the cab can be effectively isolated, and safety and waterproofness can be improved; the door closing device has a buffering effect, which reduces vibration and noise generated when closing the door. Summary of the invention

[0005] In one aspect of the present invention, a door for a working machine is provided. The door includes a first portion. The first portion includes a first glass portion. The first glass portion defines a first surface and a second surface opposite to the first surface. The first portion also includes an armrest, which is coupled to the first glass portion at the first surface of the first glass portion. The armrest is disposed near the periphery of the first glass portion and extends along the entire periphery of the first glass portion. The door also includes a second portion. The first portion is movable relative to the second portion. The second portion includes a frame portion, which defines a third surface and a fourth surface opposite to the third surface. The second portion also includes a second glass portion. The door also includes a first latch mechanism, which is movable between a first engaged state and a first disengaged state. In the first engaged state of the first latch mechanism, the first portion is engaged with the second portion. In the first disengaged state of the first latch mechanism, the first portion is disengaged from the second portion. The door includes a second latch mechanism coupled to the second portion. The second latch mechanism is movable between a second engaged state and a second disengaged state. In the second engaged state of the second latch mechanism, the second portion is engaged with a frame of a cab of the working machine. In the second disengaged state of the second latch mechanism, the second portion is disengaged from the frame of the cab.

[0006] In another aspect of the present invention, a work machine is provided. The work machine includes a cab. The cab includes a frame. The work machine also includes a door that is movably connected to the frame of the cab. The door includes a first portion. The first portion includes a first glass portion. The first glass portion defines a first surface facing the interior of the cab and a second surface opposite to the first surface. The first portion also includes an armrest that is connected to the first glass portion at the first surface of the first glass portion. The armrest is disposed near the periphery of the first glass portion and extends along the entire periphery of the first glass portion. The door also includes a second portion. The first portion is movable relative to the second portion. The second portion includes a frame portion that defines a third surface facing the interior of the cab and a fourth surface opposite to the third surface. The second portion also includes a second glass portion. The door also includes a first latch mechanism that is movable between a first engaged state and a first disengaged state. In the first engaged state of the first latch mechanism, the first portion is engaged with the second portion. In the first disengaged state of the first latch mechanism, the first portion is disengaged from the second portion. The door includes a second latch mechanism that is connected to the second portion. The second latch mechanism is movable between a second engaged state and a second disengaged state. In the second engaged state of the second latch mechanism, the second part is engaged with the frame of the cab. In the second disengaged state of the second latch mechanism, the second part is disengaged from the frame of the cab.

[0007] Other features and aspects of the present invention will become apparent from the following description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic side view of an exemplary work machine according to an example of the present invention;

[0009] Figure 2 is used according to an example of the present invention Figure 1 A schematic perspective view of a door of a working machine;

[0010] Figure 3A yes Figure 2 A schematic perspective view of a door handrail;

[0011] Figure 3B It shows Figure 2 A schematic cross-sectional view of a portion of a door;

[0012] Figure 4 yes Figure 2 a schematic perspective view of a portion of a door;

[0013] Figure 5 yes Figure 2 A schematic perspective view of a first portion of a door;

[0014] Figure 6 It is shown Figure 1 A schematic perspective view of an interior view of a cab of a work machine; and

[0015] Figure 7 is in closed position Figure 2 Schematic perspective view of a door. DETAILED DESCRIPTION

[0016] Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0017] refer to Figure 1 , a schematic side view of an exemplary work machine 100 is shown. Figure 1 In the example shown, the work machine 100 includes a compactor. However, the work machine 100 may be embodied as any other machine having an enclosed cab / operator station, such as a bulldozer, a motor grader, an excavator, etc. The work machine 100 includes a base frame 102, a front end 104, and a rear end 106 opposite the front end 104. The base frame 102 supports various components of the work machine 100 thereon. The base frame 102 defines an enclosure 108 adjacent to the rear end 106. The work machine 100 also includes a power source (not shown) disposed within the enclosure 108. Various components of the work machine 100 are operated by the power source. The power source may be an engine, such as an internal combustion engine, a fuel cell, a battery system, without limitation.

[0018] The work machine 100 also includes a pair of rollers 114, 116 that are rotatably attached to the base frame 102. In particular, the rollers 114 are front rollers disposed at the front end 104 of the work machine 100. The rollers 116 are rear rollers disposed at the rear end 106 of the work machine 100. Each roller 114, 116 supports the base frame 102 of the work machine 100 and allows the work machine 100 to travel on the ground 118. In addition, the rollers 114, 116 contact the work surface to perform one or more work operations, such as a compaction operator for compacting materials such as asphalt, soil, gravel, etc. In some examples, the work machine 100 may include wheels instead of the rollers 114, 116.

[0019] The work machine 100 includes a cab 110. An operator can sit in the cab 110 to perform and / or observe work operations. The cab 110 can include one or more controllers (not shown) that enable the operator to control the work machine 100. The cab 110 includes a frame 112. The frame 112 can have sufficient strength and rigidity to maintain an enclosed space for the operator. The present invention relates to a door 200 for the work machine 100. Specifically, the work machine 100 includes a door 200 that is movably connected to the frame 112 of the cab 110.

[0020] refer to Figure 2 , showing the Figure 1 1 is a schematic perspective view of a door 200 of a working machine 100. The door 200 includes a first portion 202. The first portion 202 can be positioned relative to the cab 110 (see FIG. Figure 1 ) framework 112 (see Figure 1 ) moves at least 180 degrees. In some examples, the first portion 202 can move at most 191 degrees. The first portion 202 includes a first glass portion 204. The first glass portion 204 can be made of a tempered glass material having a desired strength. The first glass portion 204 defines a first surface 206 and a second surface 208 (eg, Figure 7 It should be noted that the first surface 206 of the first glass portion 204 is an inner surface facing the enclosed space of the cab 110, while the second surface 208 is an outer surface facing the external environment.

[0021] The first portion 202 also includes a handrail 210 coupled to the first glass portion 204 at a first surface 206 thereof. The handrail 210 is disposed near a perimeter 211 of the first glass portion 204 and extends along the entire perimeter 211 of the first glass portion 204.

[0022] Reference Figure 3A, the handrail 210 includes a first portion 276, a second portion 278, a third portion 280, and a fourth portion 282. Each of the first portion 276, the second portion 278, and the third portion 280 is embodied as a straight portion. In addition, the fourth portion 282 has an angled design. In some examples, the handrail 210 can be made of steel. In other examples, the handrail 210 can be made of any metal material, alloy, composite material, etc., without limiting the scope of the present invention.

[0023] The armrest 210 further includes a plurality of first coupling plates 221, 227. The first coupling plates 221, 227 are disposed at the first surface 206 of the first glass portion 204 (see Figure 2 ), and is integrally connected to the armrest 210. Specifically, the armrest 210 includes two first connecting plates 221, and the first connecting plates 221 are integrally connected to the first portion 276 of the armrest 210. Therefore, the first portion 276 of the armrest 210 is directly connected to the first glass portion 204 through the first connecting plates 221. In addition, a plurality of first fasteners 226 (such as Figure 2 The armrest 210 further includes a first coupling plate 227 integrally coupled to the third portion 280 of the armrest 210. The armrest 210 further includes two coupling plates 229 (as shown in FIG. Figure 3B and Figure 7 The coupling plate 229 is disposed at the second surface 208 of the first glass portion 204. The third portion 280 of the handrail 210 is coupled to the first glass portion 204 through the first coupling plate 227 and the coupling plate 229.

[0024] refer to Figure 3B , a schematic cross-sectional view of a portion of the door 200 is shown. Figure 3B The connection between the first connecting plate 227 and the connecting plate 229 is shown. Figure 3B As shown, the first coupling plate 227 is coupled to the coupling plate 229 so that the first glass portion 204 extends between the first coupling plate 227 and the coupling plate 229. In addition, the first portion 202 includes a plurality of first fasteners 226 that couple the first coupling plate 227, the first glass portion 204, and the coupling plate 229 together. Each first coupling plate 227 is coupled to the coupling plate 229 by two first fasteners 226. In some examples, the first fasteners 226 may include bolts, screws, rivets, etc.

[0025] In addition, the door 200 includes a plurality of first seals 285, which are arranged between the first coupling plate 227 and the corresponding coupling plate 229. Specifically, the first seal 285 is arranged around each first fastener 226. In some examples, the first seal 285 may include a rubber seal. The first seal 285 has a substantially I-shaped cross section. A portion of the first seal 285 is arranged between the first coupling plate 227 and the first glass portion 204, thereby preventing direct contact between the first coupling plate 227 and the first glass portion 204. In addition, a portion of the first seal 285 is arranged between the coupling plate 229 and the first glass portion 204, thereby preventing direct contact between the coupling plate 229 and the first glass portion 204. In addition, a portion of the first seal 285 is radially arranged between the first glass portion 204 and the fastener 226, thereby preventing direct contact between the first glass portion 204 and the fastener 226.

[0026] Reference again Figure 3A , the first portion 202 further includes a first handle 222 that is fixedly coupled to the armrest 210 of the first portion 202. Specifically, the first handle 222 is coupled to the third portion 280 of the armrest 210. In some examples, the first handle 222 can be fixedly coupled to the armrest 210 by welding. In other examples, the first handle 222 can be coupled to the armrest 210 by one or more fastening devices (such as bolts, screws, rivets, etc.). The first handle 222 can allow the operator to move the first portion 202 to the closed position.

[0027] The door 200 also includes one or more first hinges 244 that connect the first portion 202 to the cab 110 (see Figure 1 ) framework 112 (see Figure 1 ) is movably coupled. One or more first hinges 244 are coupled to the armrest 210 of the first portion 202. Specifically, the first hinge 244 is coupled to the coupling plate 229 of the armrest 210. The door 200 includes two first hinges 244. Each first hinge 244 is coupled to the frame 112 by two fastening elements (not shown). In some examples, the fastening elements may include bolts, screws, rivets, etc.

[0028] Reference again Figure 2 The door 200 further includes a second portion 212. The first portion 202 is movable relative to the second portion 212. In addition, the second portion 212 is movable relative to the cab 110 (see Figure 1 ) framework 112 (see Figure 1 ) moves an angle of 90 degrees.

[0029] The second portion 212 includes a frame portion 214. The frame portion 214 defines a third surface 216 and a fourth surface 218 (eg, Figure 7 ). It should be noted that the third surface 216 is the inner surface of the frame portion 214 of the door 200 facing the closed space of the cab 110, and the fourth surface 218 is the outer surface of the frame portion 214 facing the external environment. The second portion 212 also includes a second glass portion 220. The second glass portion 220 can be made of a tempered glass material with a desired strength. In addition, the first glass portion 204 and the second glass portion 220 can be made of the same type of glass.

[0030] The second portion 212 further includes a plurality of second coupling plates 231, 235 (eg Figure 7 1 and 1 . In some embodiments, the second portion 212 includes four second coupling plates 231, 235. The frame portion 214 is coupled to the frame 112 via the second coupling plates 231, 235. In addition, the second portion 212 includes a plurality of second fasteners 233, which couple the frame portion 214 to the frame 112 via the second coupling plates 231, 235. Specifically, the second coupling plate 231, the frame portion 214, and the second coupling plate 235 are coupled to each other via two second fasteners 233. In some examples, the second fasteners 233 may include bolts, screws, rivets, etc. Alternatively, the second coupling plate 231 may be integrally coupled to the frame portion 214.

[0031] The door 200 also includes one or more second hinges 246 that movably couple the second portion 212 to the frame 112 of the cab 110. The one or more second hinges 246 are coupled to the frame portion 214 of the second portion 212. Specifically, each second hinge 246 is pivotally coupled to a corresponding second coupling plate 231. The door 200 includes two second hinges 246. Each second hinge 246 is coupled to the frame 112 by two fastening elements (not shown). In some examples, the fastening elements may include bolts, screws, rivets, etc.

[0032] The second portion 212 includes a second handle 224 that is fixedly coupled to the frame portion 214 of the second portion 212. In some examples, the second handle 224 can be fixedly coupled to the frame portion 214 by welding. In other examples, the second handle 224 can be fixedly coupled to the frame portion 214 by one or more fastening devices, such as bolts, screws, rivets, etc. The second handle 224 can allow an operator to move the second portion 212 or the entire door 200 to a closed position.

[0033] The door 200 also includes a first gas spring 248. The first gas spring 248 defines a first end 250 coupled to the frame 112 of the cab 110 and a second end 252 coupled to the first coupling plate 227 of the armrest 210. The first gas spring 248 may use compressed gas to mitigate shock caused by sudden movement of the first portion 202. The first gas spring 248 is shown as being located near the top end of the first portion 202. However, the first gas spring 248 may be located elsewhere without limitation.

[0034] The door 200 also includes a second gas spring 254. The second gas spring 254 defines a third end 256 and a fourth end 258, the third end 256 being coupled to the frame portion 214 of the second portion 212, and the fourth end 258 being coupled to the frame 112 of the cab 110. The second gas spring 254 can use compressed gas to mitigate shocks caused by sudden movement of the second portion 212. The second gas spring 254 is shown as being located near the bottom end of the second portion 212. However, the second gas spring 254 can be located elsewhere without any limitation. The first gas spring and the second gas spring can have the same design and size.

[0035] Reference Figure 4 The door 200 includes a first latch mechanism 228. The first latch mechanism 228 can be in a first engaged state (attached Figure 4 In the first engaged state of the first latch mechanism 228, the first portion 202 is engaged with the second portion 212. Figure 4 In the illustrated example, the first latch mechanism 228 is shown in a first engaged state to position the first portion 202 in a closed position. In a first disengaged state of the first latch mechanism 228, the first portion 202 is disengaged from the second portion 212. Thus, the first portion 202 can move relative to the second portion 212.

[0036] The first latch mechanism 228 includes a latch 230 coupled to the first surface 206 of the first portion 202. In a first engaged state of the first latch mechanism 228, the latch 230 is engaged with the frame portion 214 of the second portion 212. In a first disengaged state of the first latch mechanism 228, the latch 230 is disengaged from the frame portion 214 of the second portion 212. An operator can grasp and manipulate the latch 230 to move the first latch mechanism 228 between the first engaged state and the first disengaged state.

[0037] The door 200 also includes a second latch mechanism 234 coupled to the second portion 212. The second latch mechanism 234 is movable between a second engaged state and a second disengaged state. In the second engaged state of the second latch mechanism 234, the second portion 212 is engaged with the work machine 100 (see Figure 1 ) of the cab 110 (see Figure 1 ) framework 112 (see Figure 1 ) are joined. In particular, Figure 4 In the example shown, the second latch mechanism 234 is shown in the second engaged state. In the second disengaged state of the second latch mechanism 234, the second portion 212 is disengaged from the frame 112 of the cab 110. Subsequently, the second portion 212 can move relative to the frame 112 of the cab 110.

[0038] The second latch mechanism 234 includes a linkage assembly 236. The second latch mechanism 234 also includes a foot-operated pedal 238 coupled to the linkage assembly 236. Both the linkage assembly 236 and the foot-operated pedal 238 are coupled to the third surface 216 of the frame portion 214. To move the second latch mechanism 234 from the second engaged state to the second disengaged state, the operator can depress the foot-operated pedal 238 with their foot. The linkage assembly 236 includes a fixedly coupled to the cab 110 (see Figure 1 ) framework 112 (see Figure 1 ) of the second latch mechanism 234. In the second engaged state of the second latch mechanism 234, the hook 240 is engaged with the pin 242, thereby locking the second portion 212 relative to the frame 112 of the cab 110. In addition, when the operator presses the foot-operated pedal 238, the hook 240 is disengaged from the pin 242, thereby disengaging the second latch mechanism 234 to allow the second portion 212 to move relative to the frame 112.

[0039] refer to Figure 5 , the door 200 also includes a third latch mechanism 260, which is coupled to the armrest 210 and extends outward from the second surface 208 of the first glass portion 204. Specifically, the third latch mechanism 260 is directly coupled to the armrest 210. The third latch mechanism 260 includes a bracket 263. The bracket 263 is coupled to the armrest 210 through three third fasteners 261. The third fasteners 261 may include bolts, rivets, screws, etc. The third fasteners 261 pass through the bracket 263 of the third latch mechanism 260 and the first glass portion 204 to be connected to the second portion 278 of the armrest 210. In the open position of the first portion 202, the third latch mechanism 260 is locked with the cab 110 (see Figure 1 ) framework 112 (see Figure 1 ) engages to hold the first portion 202 in the open position. Specifically, the third latch mechanism 260 includes a striker 266 that engages with a retaining member (not shown) fixedly coupled to the frame 112 of the cab 110 to hold the first portion 202 in the open position.

[0040] refer to Figure 6 , showing the Figure 1 The work machine 100 is associated with a portion of the interior of the cab 110. The work machine 100 includes a latch release mechanism 262. In particular, the latch release mechanism 262 is disposed within the cab 110 and is coupled to the frame 112 of the cab 110. The latch release mechanism 262 may allow an operator to release the third latch mechanism 260 (see Figure 5 ), thereby disengaging the first portion 202 from the retaining member (not shown). The latch release mechanism 262 includes a lever 270. The operator can operate the lever 270 to cause the striker 266 (see Figure 5 ) is disengaged from the retaining member.

[0041] Reference Figure 7 , the door 200 is shown in a closed position. Specifically, each of the first portion 202 and the second portion 212 is in a closed position. The work machine 100 also includes a door trim 264 extending along the perimeter 213 of the door 200. The door trim 264 encloses an area between the door 200 and the frame 112 of the cab 110. The work machine 100 includes a lever 272 that is coupled to the second surface 208 of the first portion 202. The lever 272 allows an operator to open the door 200 from the outside to allow the operator to enter the work machine 100. The work machine 100 also includes a handle 284 that is fixedly coupled to the frame 112 of the work machine 100.

[0042] The door 200 also includes a second seal 286 disposed on the second portion 212. In particular, the second seal 286 is disposed on the frame portion 214 of the second portion 212. When the first portion 202 is in the closed position, the second seal 286 engages with the first glass portion 204 of the first portion 202 to provide a seal between the first portion 202 and the second portion 212. In some examples, the second seal 286 can include a rubber seal.

[0043] It should be understood that individual features shown or described for one embodiment may be combined with individual features shown or described for another embodiment. The above implementation does not limit the scope of the present invention in any way. Therefore, it should be understood that although some features are shown or described to illustrate the use of the present invention in the context of functional sections, such features may be omitted from the scope of the present invention without departing from the spirit of the present invention as defined in the appended claims.

[0044] Industrial Applicability

[0045] The present invention relates to a door 200 for a work machine 100. The door 200 includes a first portion 202 and a second portion 212. The first portion 202 includes a first glass portion 204, which can provide an operator with a clear view of the area surrounding the work machine 100. The first glass portion 204 can provide sufficient ambient light in the cab 110, which can enhance the operator's driving experience. In addition, the first portion 202 can be movable relative to the second portion 212. The first portion 202 can be movable relative to the frame 112 of the cab 110 by an angle of at least 180 degrees. The first portion 202 can allow the operator to monitor the work operation while sitting in the cab 110. For example, the first portion 202 can allow the operator to monitor the edges of the rollers 114, 116 when the work machine 100 performs a compaction operation, which can improve the efficiency of the compaction operation.

[0046] The first portion 202 of the door 200 covers up to 70% (approximately) of the total area of ​​the door 200. In addition, the first portion 202 is lighter in weight because the first portion 202 includes a frameless design and primarily constitutes the first glass portion 204 and has less volume of metal material. In addition, the first portion 202 also includes an armrest 210. The armrest 210 is a structural member whose route is such that when the door 200 is in a closed position, the armrest 210 follows the cab pillar visibility obstruction area. The armrest 210 extends along the entire perimeter 211 of the first glass portion 204, so that the armrest 210 can provide sufficient strength for the first portion 202. In particular, the armrest 210 can increase the strength of the first portion 202 of the door 200 by at least 80% compared to a conventional door having a frameless design, wherein the armrest partially extends along the perimeter of such a door. The armrest 210 extending along the entire perimeter 211 of the first glass portion 204 can improve the sealing of the first glass portion 204 with the frame 112 of the cab 110, which can prevent water, dust, debris or any foreign particles from entering the cab 110. In addition, the improved sealing provided by the armrest 210 can also increase the insulation inside the cab 110, thereby improving the heating, ventilation and air conditioning performance of the work machine 100.

[0047] Furthermore, the fourth portion 282 of the armrest 210 has an angled design, which may serve as a mechanical protection device for the seat in the cab 110 to avoid direct contact between the seat and the door 200 .

[0048] The armrest 210 is coupled to the first glass portion 204 with an optimal torque. The armrest 210 is coupled to the frame 112 of the cab 110 by the first coupling plate 227 and the coupling plate 229, rather than being coupled by the first glass portion 204. Therefore, the first glass portion 204 is not subjected to any load / stress, thereby preventing damage to the first glass portion 204. In addition, the door 200 includes a first seal 285 disposed around the first glass portion 204. The first seal 285 can prevent the first glass portion 204 from being subjected to any damage. Specifically, the first seal 285 can prevent the first glass portion 204 from being in direct contact with the armrest 210, the first coupling plate 227 or the coupling plate 229. During the movement of the first portion 202 between the closed position and the open position, a load (e.g., a torsional load) can be transferred from the armrest 210 to the first hinge 244 and the first seal 285 to prevent damage to the first glass portion 204.

[0049] The door 200 also includes a first gas spring 248 and a second gas spring 254. The first gas spring 248 can provide stability to the first portion 202. In addition, the second gas spring 254 can provide stability to the second portion 212 of the door 200 and can limit the travel of the second portion 212, for example, beyond 90 degrees. Each of the first gas spring 248 and the second gas spring 254 can facilitate the first portion 202 and the second portion 212 to open at least 180 degrees and 90 degrees, respectively. In addition, the first gas spring 248 and the second gas spring 254 can respectively reduce shock caused by sudden movement of the first portion 202 and the second portion 212.

[0050] The door 200 also includes a first handle 222 coupled to the third portion 280 of the armrest 210. The design and position of the first handle 222 on the third portion 280 may be such that the first handle 222 does not obstruct the view of the operator in the cab 110. The first handle 222 may allow the operator to easily open or close the first portion 202 of the door 200. The door 200 also includes a second handle 224 fixedly coupled to the frame portion 214 of the second portion 212. The second handle 224 may have a smooth and long transition design so that the operator may easily open or close the second portion 212 of the door 200. In addition, the second handle 224 may be positioned on the frame portion 214 so that the second handle 224 does not contact the driver's seat in the cab 110. In addition, the first handle 222, the second handle 224, and the handle 284 may provide the operator with three contact points to easily board the work machine 100.

[0051] The door 200 also includes a first latch mechanism 228. The first latch mechanism 228 includes a latch 230 that can be ergonomically located on the first surface 206 of the first portion 202. The operator can easily operate and access the latch 230 to move the first portion 202 from a closed position to an open position. The door 200 also includes a second latch mechanism 234. The second latch mechanism 234 includes a foot-operated pedal 238, which can provide ergonomic advantages over traditional hand-operated latch mechanisms.

[0052] The door 200 also includes a third latch mechanism 260 coupled to the second surface 208 of the first glass portion 204. The third latch mechanism 260 is directly coupled to the armrest 210, which can prevent damage to the first glass portion 204 when the third latch mechanism 260 is engaged / disengaged with a retaining member on the frame 112 of the cab 110. The door 200 also includes a latch release mechanism 262 that allows the third latch mechanism 260 to be released, thereby allowing the first portion 202 to be released from the frame 112 of the cab 110. The latch release mechanism 262 can be ergonomically located within the cab 110 so that the latch release mechanism 262 can be easily accessible to the operator. The work machine 100 also includes a door trim 264 extending along the perimeter 213 of the door 200. The door trim 264 can have an aesthetically pleasing appearance and can prevent water, snow, dust, etc. from entering the cab 110.

[0053] The door 200 also includes a second seal 286 disposed on the frame portion 214 of the second portion 212. When the first portion 202 is in the closed position, the second seal 286 engages the first glass portion 204 of the first portion 202 and provides a seal between the first portion 202 and the second portion 212. In addition, when each of the first portion 202 and the second portion 212 is in the closed position, the second seal 286 can allow the first portion 202 and the second portion 212 to form a flat / flush profile, thereby forming an aesthetically pleasing finish appearance. In addition, when the first portion 202 is in the closed position, the second seal 286 can prevent water, dust, snow, etc. from entering the cab 110.

[0054] In general, the door 200 of the present invention may have an ergonomic frame separation design, which may improve the efficiency of operating operations, may be relatively light in weight, and may have improved structural strength.

[0055] Although various aspects of the present invention have been specifically shown and described with reference to the above embodiments, it will be appreciated by those skilled in the art that various additional embodiments may be conceived by modifying the disclosed working machines, systems and methods without departing from the spirit and scope of the present invention. Such embodiments should be understood to fall within the scope of the present invention as determined based on the claims and any equivalents thereof.

Claims

1. A door for a working machine, the door comprising: The first part includes: a first glass portion defining a first surface and a second surface opposite the first surface; and a handrail coupled to the first glass portion at the first surface of the first glass portion, wherein the handrail is disposed about a perimeter of the first glass portion and extends along the entire perimeter of the first glass portion; a second part, wherein the first part is movable relative to the second part, the second part comprising: a frame portion defining a third surface and a fourth surface opposite the third surface; and A second glass section; a first latch mechanism movable between a first engaged state and a first disengaged state, wherein in the first engaged state of the first latch mechanism, the first portion is engaged with the second portion, and wherein in the first disengaged state of the first latch mechanism, the first portion is disengaged from the second portion; and A second latch mechanism is coupled to the second portion, the second latch mechanism being movable between a second engaged state and a second disengaged state, wherein in the second engaged state of the second latch mechanism, the second portion is engaged with a frame of a cab of the work machine, and wherein in the second disengaged state of the second latch mechanism, the second portion is disengaged from the frame of the cab.

2. The door according to claim 1, wherein: The second latch mechanism includes a linkage assembly and a foot-operated pedal coupled to the linkage assembly, wherein the linkage assembly and the foot-operated pedal are coupled to the third surface of the frame portion.

3. The door according to claim 1, wherein: The first portion is movable relative to the frame of the cab through an angle of at least 180 degrees.

4. The door according to claim 1, wherein: The second portion is movable 90 degrees relative to the frame of the cab.

5. The door according to claim 1, wherein The first portion includes a first handle fixedly coupled to the armrest of the first portion, and wherein the second portion includes a second handle fixedly coupled to the frame portion of the second portion.

6. The door according to claim 1, wherein: The first latch mechanism includes a latch coupled to the first surface of the first portion, wherein in the first engaged state of the first latch mechanism, the latch engages with the frame portion of the second portion, and wherein in the first disengaged state of the first latch mechanism, the latch disengages from the frame portion of the second portion.

7. The door of claim 1, further comprising a third latch mechanism coupled to the handrail and extending outwardly from the second surface of the first glass portion, wherein In the open position of the first portion, the third latch mechanism engages the frame of the cab to retain the first portion in the open position.

8. The door according to claim 1, wherein: The work machine further includes a door trim extending along a periphery of the door, the door trim being used to close an area between the door and the frame of the cab.

9. The door according to claim 1, further comprising: one or more first hinges that movably couple the first portion to the frame of the cab, wherein the one or more first hinges are coupled to the armrest of the first portion; and One or more second hinges movably couple the second portion to the frame of the cab, wherein the one or more second hinges are coupled to the frame portion of the second portion.

10. The door according to claim 1, wherein The work machine includes a compactor.

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