Tire roller control system and cab

Abstract

The application discloses a tire roller operating system and a cab, and comprises a main driver seat, an assistant driver seat, a steering wheel, an operating handle, an operating table, a brake pedal and an accelerator pedal; the main driver seat, the assistant driver seat, the steering wheel, the operating handle, the operating table, the brake pedal and the accelerator pedal are arranged with the driver as the center and with the working condition visual field requirement, the operation comfort requirement and the space requirement as the constraint conditions, so that the tire roller operating system can meet the comfortable operation requirements of drivers with different body sizes, and the working condition visual field requirement is determined based on the tire roller working condition and the operation characteristics. The application can ensure that drivers with different body sizes can comfortably drive.

Description

Technical Field

[0001] This invention belongs to the field of engineering machinery, specifically relating to a tire roller control system and cab. Background Technology

[0002] The cab is an important component of construction machinery. The steering wheel, accelerator pedal, control box, seat and other control system components are all important parts of the cab. The driver controls the movement and compaction of the pneumatic tire roller by operating the various functional components. However, the existing pneumatic tire roller cabs have unreasonable spatial layout of the various functional components, relatively complex structure, inconvenient operation for the driver and poor human-machine interaction.

[0003] The existing tire roller product solutions generally have the following shortcomings:

[0004] (1) The cab layout is too casual, the interior layout is not compact, there is a lack of storage space, and the human-machine experience is poor. No patents have been found on the layout of the cab interior control system, especially the driver-centered control system layout that takes into account the comfort of the seating position, the visibility under typical working conditions, the interior space, and the ease of entry and exit.

[0005] (2) The control lever is used to control the vehicle's forward, reverse, and speed changes. It is mostly located on the center console, and to ensure its accessibility, it is positioned to the left or right front of the driver's seat. Therefore, when switching between the two control positions, the lever position obstructs the passage, seriously affecting the convenience of entry and exit.

[0006] (3) The layout of the control system components such as steering wheel, accelerator pedal, control box, and seat is unreasonable. There is no support for the elbow during the operation of the handle. The handle and steering wheel are not accessible, resulting in poor operating comfort. Summary of the Invention

[0007] To address the aforementioned issues, this invention proposes a tire roller control system and cab. Centered on the driver, it fully considers the operational characteristics of tire rollers and takes into account user needs in terms of visibility, operational comfort, and space. The system implements a systematic human-machine layout design for each functional component of the control system and rationally arranges the cab to form an overall layout scheme for the tire roller cab control system, meeting the comfortable operation needs of drivers of different heights.

[0008] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:

[0009] In a first aspect, the present invention provides a tire roller operating system, comprising: a driver's seat, a passenger seat, a steering wheel, a control handle, a control panel, a brake pedal, and an accelerator pedal;

[0010] Centered on the driver, and constrained by the requirements of working condition visibility, operational comfort, and space requirements, the driver's seat, passenger seat, steering wheel, control handle, control panel, brake pedal, and accelerator pedal are arranged to ensure that the tire roller control system meets the comfortable operation needs of drivers of different heights. The working condition visibility requirements are determined based on the working conditions and operation characteristics of the tire roller.

[0011] Optionally, based on the working conditions and characteristics of the pneumatic tire roller, the required field of vision is determined to be direct observation of the front and rear.

[0012] Based on the field of vision requirements under the aforementioned working conditions, a 5-95 percentile human comfortable driving posture design is carried out.

[0013] Based on the determined comfortable human posture, and with the conditions of meeting the requirements of operational comfort and space requirements, the layout design of the driver's seat, passenger seat, steering wheel, control handle, brake pedal and accelerator pedal is carried out.

[0014] The layout design of the control panel and its various control switches is based on the requirements of operational comfort and space.

[0015] Optionally, the design process for the human body's comfortable driving posture is as follows:

[0016] Establish a human body model that aligns with the actual human development of the target sales market;

[0017] Based on the required field of vision under the working conditions, the heel point when operating the accelerator pedal is used as the reference point, and the ankle angle, knee angle, hip angle and H-point height are used as human body parameters to calculate the human body's comfortable sitting posture, and the 5th to 95th percentile human body H-point positions are obtained respectively.

[0018] Optionally, based on the 5th-95th percentile human H-point position, and with the condition that the ankle angle of drivers of different sizes is within a comfortable range when operating the brake pedal and accelerator pedal, the selection of brake pedal and accelerator pedal, setting of pedal plane angle, setting of pedal travel and definition of pedal installation position are carried out.

[0019] To ensure that the foot does not interfere with surrounding components during the operation of the brake pedal and accelerator pedal, the safety clearance between the brake pedal and accelerator pedal, and the safety clearance between the accelerator pedal and the dashboard are designed.

[0020] Optionally, the layout design process for the driver's seat and the front passenger seat is as follows:

[0021] Based on the 5th-95th percentile human body H-point position, seat selection is based on seat cushion size, seat cushion compression, backrest size, fore-aft adjustment, and height adjustment.

[0022] The seat travel needs to cover the distribution range of the 5th to 95th percentile H point, and there needs to be a margin of travel so that it can cover a smaller percentile of the human body when moving forward and a larger percentile of the human body when moving backward.

[0023] Determine the seat installation location based on the seat cushion size, backrest size, and installation dimensions;

[0024] During seat adjustment, the seat body maintains a safety gap of at least 30mm with the front and rear interior trim and control panel of the cab.

[0025] Optionally, based on the 5th-95th percentile H-point position of the human body, the comfortable full-palm reach range is determined, so that the steering wheel is positioned to meet the comfortable reach range of the hand under the 5th-95th percentile comfortable sitting posture.

[0026] Optionally, the control handle is a hydraulic handle, in the form of a column shifter, and is located below the steering wheel.

[0027] Optionally, based on the working conditions and characteristics of the tire roller, the functions, operation methods, structural forms, operation frequencies, and importance of the control switches on the control panel are sorted out, and the layout is prioritized according to the operation frequency and importance. Control switches with high layout priority are placed in the comfortable operating area; control switches are arranged according to functional combinations or operation sequences; and a certain safety gap is maintained between each control switch according to the operation method and operation sequence.

[0028] Optionally, the control panel is provided with a first operation area, a second operation area, and a display area;

[0029] The first operating area is a high-frequency control area, and it is arranged symmetrically on both sides. According to the importance and operating frequency of the control switches, the hand throttle, water spraying and oil spraying switch, and gear selection are arranged in sequence.

[0030] The second operating area includes an emergency control area, a work mode selection area, an auxiliary function area, and a button area. The emergency control area is symmetrically arranged on both sides, with each emergency control area within comfortable reach. The mounting surface is angled and there are no protruding parts around it, ensuring unobstructed operation. The work mode selection area allows for the definition of the number of control switches and the operation mode according to the functional configuration. The auxiliary function area includes start-up and backup power supplies. The button area arranges control switches according to the principle of similar functions and similar operation methods.

[0031] The display area was designed to allow for reading within a comfortable driving posture and within the normal range of head rotation, while also ensuring unobstructed observation of the external working conditions outside the cab.

[0032] In a second aspect, the present invention provides a cab including the tire roller control system described in any one of the first aspects.

[0033] Optionally, the cab also includes an interior trim, which includes a rear bulkhead, a front bulkhead, and an inner roof.

[0034] The concave design on both sides of the rear panel is designed to accommodate the space required for the seat to be adjusted backward.

[0035] The front panel has an outward concave shape in front of the pedals of each driver's seat to meet the safety operating clearance requirements of the feet during pedal operation.

[0036] An arc with the 5th-95th percentile human body point H as the center and R as the radius is used as the inner top minimum constraint surface.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] This invention proposes a tire roller control system and cab, which is driver-centric and fully considers the operating characteristics of tire rollers, while taking into account user needs such as visibility, operating comfort, and space. The system conducts a systematic human-machine layout design for each functional component of the control system and rationally arranges the cab to form an overall layout scheme for the tire roller cab control system, which meets the comfortable operating needs of drivers of different heights and can greatly improve the user experience.

[0039] The present invention proposes a tire roller operating system and cab that makes reasonable use of space and improves operational safety and ease of entry and exit.

[0040] This invention proposes a tire roller control system and cab. The arrangement of the pedals, steering wheel, seat, etc., makes the driver's operation more ergonomic, ensuring comfortable driving for drivers of different sizes. At the same time, frequently used operating components are placed within the driver's optimal operating space, while less frequently used components are placed within the manageable operating space. Attached Figure Description

[0041] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0042] Figure 1 This is a layout flowchart of the driver's cab control system in one embodiment of the present invention;

[0043] Figure 2 This is a schematic diagram of the cab structure according to an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the layout of the control system according to an embodiment of the present invention;

[0045] Figure 4This is a schematic diagram of the control panel layout according to an embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram showing the details of the foot pedal according to an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the human body H-point distribution and seat travel matching according to an embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram of the head space according to an embodiment of the present invention;

[0049] Figure 8 This is a schematic diagram illustrating the ease of entry and exit according to one embodiment of the present invention;

[0050] Figure 9 This is a schematic diagram of a modular control panel according to an embodiment of the present invention;

[0051] Figure 10 This is a schematic diagram of the interior of an embodiment of the present invention;

[0052] 1-Cockpit frame, 2-Driver's seat, 3-Interior, 4-Passenger seat, 5-Control panel, 6-Brake pedal, 7-Accelerator pedal, 8-Heel point, 9-Human model, 10-Sitting comfort line, 11-95th percentile human H-point, 12-Seat travel, 13-Eye ellipse, 14-Hand reach range, 15-Lower limit field of vision constraint line, 16-Head space restriction surface, 17-Human leg model, 18-Leg rotation safety envelope surface, 301-Rear panel, 302-Front panel, 303-Column skin, 304-Inner roof, 501-Steering wheel, 502-Control handle, 503-First operating area, 504-Second operating area, 505-Emergency control area, 506-Operating mode selection area, 507-Auxiliary function area, 508-Button area, 509-Display area, 510-Cup holder. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may include different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0055] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0056] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The application principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0058] Example 1

[0059] This invention provides a tire roller control system, such as... Figure 1-10 As shown, the cab includes: a cab frame 1, a driver's seat 2, a passenger seat 4, a steering wheel 501, a control handle 502, a control panel 5, a brake pedal 6, and an accelerator pedal 7. In practice, the driver's seat 2, passenger seat 4, brake pedal 6, and accelerator pedal 7 are all fixed to the cab floor with bolts (not shown in the figure); the control panel 5 is fixed to the cab floor and the front bulkhead 302 of the cab with bolts (not shown in the figure).

[0060] Centered on the driver, and constrained by the requirements of working condition visibility, operational comfort, and space requirements, the driver's seat 2, passenger seat 4, steering wheel 501, control handle 502, control panel 5, brake pedal 6, and accelerator pedal 7 are arranged to ensure that the tire roller control system meets the comfortable operation needs of drivers of different heights. The working condition visibility requirements are determined based on the working conditions and operation characteristics of the tire roller.

[0061] In one specific embodiment of the present invention, such as Figure 1 As shown, based on the working conditions and operation characteristics of the tire roller, the required field of vision is determined to be direct observation of the front and rear.

[0062] Based on the field of vision requirements under the aforementioned working conditions, a 5-95 percentile human comfortable driving posture design is carried out.

[0063] Based on the determined comfortable human posture, and with the conditions of meeting the requirements of operational comfort and space, the layout design of the driver's seat 2, passenger seat 4, steering wheel 501, control handle 502, brake pedal 6 and accelerator pedal 7 is carried out.

[0064] To meet operational comfort and space requirements, the layout design of the control panel 5 and its various control switches is carried out. In the specific implementation process, the typical working conditions and characteristics of the pneumatic tire roller are first clarified. Since the pneumatic tire roller operates primarily in a back-and-forth motion during compaction, requiring repeated observation of the road surface compaction, the direct field of view in front and behind is determined as the typical working condition's field of view requirement. Secondly, based on the typical working condition's field of view requirement, the 5th-95th percentile comfortable driving posture is designed. Thirdly, based on the determined comfortable human posture, the positions of components such as the driver's seat 2, passenger seat 4, steering wheel 501, control handle 502, brake pedal 6, and accelerator pedal 7 are designed. Then, the layout design of the control panel 5 and its control switches is carried out. Finally, the interior details of the interior 3 are designed.

[0065] In one specific embodiment of the present invention, such as Figure 6 As shown, the design process for the human body's comfortable driving posture is as follows:

[0066] Establish a human body model that conforms to the actual human development of the target sales market;

[0067] Based on the required field of vision under the aforementioned working conditions, using the heel point 8 when the accelerator pedal 7 is operated as the reference point, and with ankle angle, knee angle, hip angle, and H-point height as human body parameter constraints, a comfortable sitting posture calculation is performed to obtain the 5th-95th percentile human H-point positions. In the specific implementation process, the design process for the comfortable driving posture is as follows: Based on the target sales market, the corresponding national body size characteristics are identified, and a human body model 9 conforming to the actual human development of that country is established; based on the required field of vision under typical working conditions, combined with the overall machine layout, using the heel point 8 when the accelerator pedal 7 is operated as the reference point, and with ankle angle, knee angle, hip angle, and H-point height as human body parameter constraints, a comfortable sitting posture calculation is performed to obtain the 5th-95th percentile human H-point positions. As shown in Figure 6, in this embodiment of the invention, based on the visual field requirements of typical working conditions, the lower limit visual field constraint line 15 is obtained by drawing the lower tangent line of the 95th percentile eye ellipse 13. According to the human body size characteristics and the range of comfortable joint angles, different percentile sitting posture comfort lines 10 are calculated. In this embodiment, the 95th percentile comfortable sitting posture human body model 9, the 95th percentile human body H point 11, and the heel point 8 are obtained by calculation.

[0068] In one specific embodiment of the present invention, such as Figure 5 As shown, based on the 5th-95th percentile human body H-point position, and with the condition that the ankle angle of drivers of different sizes is within a comfortable range when operating the brake pedal 6 and accelerator pedal 7, the selection of brake pedal 6 and accelerator pedal 7, the setting of pedal plane angle, the setting of pedal travel and the definition of pedal installation position are carried out.

[0069] To ensure that the foot does not interfere with surrounding components during the operation of the brake pedal 6 and accelerator pedal 7, the safety clearances of the brake pedal 6 and accelerator pedal 7, and the safety clearance between the accelerator pedal 7 and the dashboard, are designed. In specific implementation, based on the 5th-95th percentile human H-point position (i.e., the 5th-95th percentile human comfortable sitting posture), the selection of brake pedal 6 and accelerator pedal 7, the setting of pedal plane angle, the setting of pedal travel, and the definition of pedal installation position are carried out to ensure that the ankle angle of drivers of different sizes is within a comfortable range when operating the pedals, thus ensuring foot comfort; controlling the safety clearances of brake pedal 6 and accelerator pedal 7, and the safety clearance between accelerator pedal 7 and dashboard, ensures that the foot does not interfere with surrounding components during pedal operation, avoiding misoperation. As shown in the figure, foot I and foot II are well matched with the surfaces of brake pedal 6 and accelerator pedal 7, respectively. The front interior trim 3 has a concave shape in front of the footrest to increase foot space and meet the needs of comfortable sitting posture and safe operation. In this embodiment, the process of simulating the operation of the accelerator pedal 7 and the brake pedal 6 is simulated. Based on the position of the feet I and II, a safe clearance envelope surface III for pedal operation is made. There are no components within the envelope surface III that would obstruct the foot pedal operation.

[0070] In one specific embodiment of the present invention, such as Figure 3 and6 As shown, the layout design process for the driver's seat 2 and the front passenger seat 4 is as follows:

[0071] Based on the 5th-95th percentile human body H-point position, seat selection is based on aspects such as seat cushion size, backrest size, seat cushion compression, fore-aft adjustment (determining the fore-aft adjustment range), and height adjustment (determining the up-down adjustment range).

[0072] The seat travel 12 needs to cover the distribution range of the 5th to 95th percentile H point, and must leave a margin of travel to cover a smaller percentile of the human body when moving forward and a larger percentile of the human body when moving backward.

[0073] Determine the seat installation location based on the seat cushion size, backrest size, and installation dimensions;

[0074] During the fore-and-aft adjustment of the seat, a safety clearance of at least 30mm is maintained between the seat body and the front and rear interior trim of the cab and the control panel. In specific implementation, the seat position design process in this embodiment of the invention is as follows: Based on the determined distribution of the human body's H-point position, the seat is selected considering factors such as cushion size, backrest size, fore-and-aft adjustment, and height adjustment; the seat travel 12 preferentially covers the 5th-95th percentile H-point distribution range, and should have ample travel, covering smaller percentiles of the human body forward and larger percentiles backward; then, the seat installation position is determined based on the seat mechanism and installation dimensions; simultaneously, the safety clearance between the seat and the front and rear interior trim 3 and control panel 5 during fore-and-aft adjustment is checked. In this embodiment, the selected seat travel 12 covers the 5th-95th percentile human body seating comfort line 10, with ample travel backward to meet the seating needs of larger percentiles, and is equipped with height adjustment to meet the needs of more drivers.

[0075] In one specific embodiment of the present invention, such as Figure 4 and 6 As shown, based on the 5th-95th percentile human body H-point position, a comfortable full-palm hand reach range 14 is determined, ensuring that the steering wheel 501 is positioned within this range in a comfortable seating posture (5th-95th percentile). In specific implementation, the steering wheel 501 position design in this embodiment is as follows: based on the determined 5th-95th percentile human body position, a comfortable full-palm hand reach range 14 is created. Considering the relationship between the steering wheel 501 and the 5th-95th percentile human body H-point position, the steering wheel 501 position design is performed. The steering wheel 501 position satisfies the comfortable hand reach range 14 in a comfortable seating posture (5th-95th percentile), and the steering wheel 501 tilt angle is reasonable, facilitating driver operation.

[0076] In one specific embodiment of the present invention, such as Figure 4 and 8As shown, the control handle 502 is a hydraulic handle, in the form of a column shifter, and is located below the steering wheel 501. In specific implementation, the design of the control handle 502 involved in this invention is as follows: based on the principle of motion economy, the existing hydraulic handle is replaced with a column shifter, located below the steering wheel 501. This allows for easy and convenient forward, backward, and gear shifting operations during normal operation without the need for arm movement, relying solely on hand movements, reducing the range of motion and alleviating work fatigue. Replacing the traditional hydraulic handle with a column shifter reduces the size of the control panel. By optimizing the layout and shape of the control panel, the space for switching between the left and right driving positions is increased, ensuring that there are no other obstacles within the leg rotation safety envelope 18 of the human leg model 17, thus improving ease of entry and exit.

[0077] In one specific embodiment of the present invention, based on the working conditions and characteristics of the tire roller, the functions, operation methods, structural forms, operating frequencies, and importance of the control switches on the control panel 5 are analyzed. The switches are then prioritized according to their operating frequency and importance, with higher-priority switches placed in comfortable operating areas. The control switches are arranged according to functional combinations or operating sequences. A certain safety gap is maintained between each control switch based on its operating form and sequence. Specifically, the control switch layout design involved in this invention is as follows: based on typical working conditions, relevant information such as the functions, operation methods, structural forms, operating frequencies, and importance of the control switches is analyzed. The switches are then prioritized according to their operating frequency and importance, with higher-priority switches placed in comfortable operating areas. To reduce the memory load and search time for positions, the control switches are arranged according to functional combinations or operating sequences. A certain safety gap should be maintained between the control switches based on their operating form and sequence, and additional safety protection should be added if necessary to avoid misoperation.

[0078] In one specific embodiment of the present invention, such as Figure 4 and Figure 9 As shown, the control panel 5 is provided with a first operation area 503, a second operation area 504 and a display area 509;

[0079] The first operating area 503 is a high-frequency operating area, and it is arranged symmetrically on both sides. According to the importance and operating frequency of the control switches, the hand throttle, water spraying and oil spraying switch, and gear selection are arranged in sequence, which makes it convenient for the driver to access, reduces operating fatigue, and meets the needs of operation.

[0080] The second operation area 504 includes an emergency control area 505, an operation mode selection area 506, an auxiliary function area 507, and a button area 508. The emergency control area 505 is arranged symmetrically on both sides, with each emergency control area 505 positioned within a comfortable reach range 14. The mounting surface is angled, and there are no protruding parts around it, ensuring unobstructed operation and allowing the driver to reach and complete the operation immediately, meeting operational requirements. The operation mode selection area 506 can define the number of control switches and the operation mode according to the functional configuration. In this embodiment, the operation mode selection area control switch is a knob, with left and right operation selection and intermittent water spray mode selection. The auxiliary function area 507 is equipped with components such as starter and backup power supply to meet operational needs. The button area 508 is arranged with control switches according to functional characteristics and operation modes, following the principle of similar functions and similar operation methods, such as light control and wiper control switches.

[0081] The display area 509 is designed to meet the conditions that the driver can read the image within a normal range of head rotation while in a comfortable driving posture, and that there is no obstruction to the observation of the external working conditions of the cab. In this design position, the light reflected by the display area 509 from the outside light will not interfere with the driver's eyes. At night, the display area 509 will not form an image on the glass and will not affect the driver's vision.

[0082] Furthermore, the control panel 55 is also equipped with a cup holder 510 to provide storage space for the driver's cup during field operations;

[0083] The button panels of the first operating area 503 and the second operating area 504 on the control panel 5 are made of laser-cut aluminum plates. They can be modularly replaced according to specific function configurations, increasing or decreasing the number and arrangement of internal button openings, making them widely applicable.

[0084] Example 2

[0085] This invention provides a driver's cab 1, such as... Figure 2 As shown, it includes the tire roller control system described in any one of Embodiment 1.

[0086] In one specific embodiment of the present invention, such as Figure 7 and 10 As shown, the cab also includes an interior panel 3, which includes: a rear panel 301, a front panel 302, an inner roof 304, and pillar skins 303;

[0087] Based on the operating space requirements, the rear panel 301 has concave shapes on both sides to meet the space requirements for adjusting the seat backward.

[0088] The front panel 302 has an outward concave shape in front of the pedals of each driver's seat to meet the safety operating clearance requirements of the feet during pedal operation.

[0089] Based on a comfortable seating posture, and considering the longitudinal space requirements of different percentile driver heights, wearing helmets, and seat shock absorption, an arc (i.e., head space limiting surface 16) with the 5th-95th percentile human body H point as the center and R as the radius is used as the minimum limiting surface constraint of the inner roof 304, making the interior 3 aesthetically pleasing, simple, and robust.

[0090] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0091] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A tire roller operating system, characterized in that, include: Driver's seat, passenger seat, steering wheel, control handle, control panel, brake pedal and accelerator pedal; Centered on the driver, and constrained by the requirements of working condition visibility, operational comfort, and space requirements, the driver's seat, passenger seat, steering wheel, control handle, control panel, brake pedal, and accelerator pedal are arranged so that the tire roller control system can meet the comfortable operation needs of drivers of different sizes. The working condition visibility requirements are determined based on the working conditions and operation characteristics of the tire roller. Based on the working conditions and characteristics of the tire roller, the required field of vision is determined to be direct observation of the front and rear. Based on the field of vision requirements under the aforementioned working conditions, a 5-95 percentile human comfortable driving posture design is carried out. Based on the determined comfortable human posture, and with the conditions of meeting the requirements of operational comfort and space requirements, the layout design of the driver's seat, passenger seat, steering wheel, control handle, brake pedal and accelerator pedal is carried out. The layout design of the control panel and various control switches on the control panel is based on the requirements of operational comfort and space requirements. The design process for the human body's comfortable driving posture is as follows: Establish a human body model that aligns with the actual human development of the target sales market; Based on the field of vision requirements under the aforementioned working conditions, the heel point when operating the accelerator pedal is used as the reference point, and the ankle angle, knee angle, hip angle and H-point height are used as human body parameters to constrain the human body comfortable sitting posture, and the 5th to 95th percentile human body H-point positions are obtained respectively. The control panel is provided with a first operating area, a second operating area, and a display area; The first operating area is a high-frequency control area, and it is arranged symmetrically on both sides. According to the importance and operating frequency of the control switches, the hand throttle, water spraying and oil spraying switch, and gear selection are arranged in sequence. The second operating area includes an emergency control area, an operation mode selection area, an auxiliary function area, and a button area; The emergency control area is arranged symmetrically on both sides, with each emergency control area within a comfortable reach. The mounting surface is designed with an incline and there are no protruding parts around it, ensuring unobstructed operation. The operation mode selection area can define the number of control switches and the operation mode according to the functional configuration. The auxiliary function area is equipped with start-up and backup power supplies. The button area arranges control switches according to the principle of similar functions and similar operation methods. The display area is designed to allow for reading within a comfortable driving posture and within the normal range of head rotation, while also ensuring unobstructed observation of the external working conditions outside the cab. The layout design process for the driver's seat and the front passenger seat is as follows: Based on the 5th-95th percentile human body H-point position, seat selection is based on seat cushion size, seat cushion compression, backrest size, fore-aft adjustment, and height adjustment. The seat travel needs to cover the distribution range of the 5th to 95th percentile H point, and there needs to be a margin of travel so that it can cover a smaller percentile of the human body when moving forward and a larger percentile of the human body when moving backward. Determine the seat installation location based on the seat cushion size, backrest size, and installation dimensions; During the fore-and-aft adjustment of the seat, the seat body maintains a safety gap of at least 30mm with the front and rear interior trim and control panel of the cab. Based on the working conditions and characteristics of the tire roller, the functions, operation methods, structural forms, operation frequencies, and importance of the control switches on the control panel are analyzed. The layout is prioritized according to the operation frequency and importance, and control switches with higher layout priority are placed in the comfortable operating area. The control switches are arranged according to functional combinations or operation sequences. A certain safety gap is maintained between each control switch according to the operation method and operation sequence.

2. The tire roller control system according to claim 1, characterized in that: Based on the 5th-95th percentile human H-point position, and with the condition that the ankle angle of drivers of different sizes is within a comfortable range when operating the brake pedal and accelerator pedal, the selection of brake pedal and accelerator pedal, the setting of pedal plane angle, the setting of pedal travel and the definition of pedal installation position are carried out. To ensure that the foot does not interfere with surrounding components during the operation of the brake pedal and accelerator pedal, the safety clearance between the brake pedal and accelerator pedal, and the safety clearance between the accelerator pedal and the dashboard are designed.

3. The tire roller control system according to claim 1, characterized in that: Based on the 5th-95th percentile H-point position of the human body, the comfortable full-palm reach range is determined, so that the steering wheel is positioned to meet the comfortable hand reach range under the 5th-95th percentile comfortable sitting posture.

4. The tire roller control system according to claim 1, characterized in that: The control handle is a hydraulic handle, in the form of a column shifter, and is located below the steering wheel.

5. A driver's cab, characterized in that, The tire roller control system includes any one of claims 1-4.

6. A driver's cab according to claim 5, characterized in that, The cab also includes an interior panel, which includes a rear bulkhead, a front bulkhead, and an inner roof. The concave design on both sides of the rear panel is designed to accommodate the space required for the seat to be adjusted backward. The front panel has an outward concave shape in front of the pedals of each driver's seat to meet the safety operating clearance requirements of the feet during pedal operation. An arc with the 5th-95th percentile human body point H as the center and R as the radius is used as the inner top minimum constraint surface.

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