CN214138764U

CN214138764U - Frame shell and automatic guide carrier loader

Info

Publication number: CN214138764U
Application number: CN202023133843.9U
Authority: CN
Inventors: 王蒙; 王洪昆; 王文刚; 边志宏; 丁颖; 王萌; 焦杨; 马瑞峰; 王浩然; 盛慧强
Original assignee: Beijing Tieke Heli Technology Co ltd; Shenhua Railway Equipment Co Ltd
Current assignee: Beijing Tieke Heli Technology Co ltd; Shenhua Railway Equipment Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-07
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to a frame shell and automated guidance carrier loader. The frame shell comprises a vehicle end panel, a covering panel and an access door, the vehicle end panel is detachably covered on the frame end of the carrier vehicle main body, and the covering panel is detachably covered on the frame side and the top of the carrier vehicle main body. The cover panel is equipped with the access hole, and the access hole is located to the access door, and the access door can open and shut. The access hole is formed in the covering panel, and the access door is arranged at the access hole, so that the internal components of the carrier loader main body can be conveniently overhauled. Because the outside surface of the frame is laid with the end panel and the cover panel, an independent space is formed inside the carrier loader main body, and sundries are prevented from entering the inside of the carrier loader main body, so that the internal components of the carrier loader are effectively protected. In addition, because the top load of carrier loader main part has a plurality of equipment, through at frame surface detachably installation cover panel, when changing top equipment like this only need dismantle the cover panel at top can, convenient to use.

Description

Frame shell and automatic guide carrier loader

Technical Field

The utility model relates to an automated guided vehicle technical field especially relates to a frame shell and automated guided carrier loader.

Background

The surface of the railway wagon is sprayed with a vehicle mark, and the traditional vehicle mark is sprayed in a manual mode. An operator moves to a specific part of a vehicle to be sprayed by adopting simple manpower or an electric trolley, holds a bushing and a paint spraying gun by hands, and marks and paints the specific part of the vehicle.

Because the cost of manual spraying is higher, simultaneously because repair the garage station more, and the automobile body risees a lot after being erect, the operator needs the people to pull the handcart, and manual getting is put the small pattern, and working strength is big, has certain potential safety hazard. In view of the defects, part of spraying work begins to use the intelligent spraying equipment to operate, and the intelligent spraying equipment can realize the full-automatic spraying operation of the rail wagon vehicle identification, so that the number of operators is reduced, the labor intensity of workers is reduced, and potential safety hazards are eliminated. However, the painting robot is installed in the automated guided vehicle when using, and the traditional automated guided vehicle is extremely inconvenient to overhaul its internal components.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a frame enclosure and an automated guided vehicle that facilitates the maintenance of components within the frame.

A frame shell, the frame shell comprising:

the end panel is detachably covered on the end part of the frame of the carrier loader main body;

the covering panel is detachably covered on the side part and the top part of the frame of the carrier vehicle main body and provided with an access hole; and

the access door, the access door is located the access hole, the access door can open and shut.

Foretell frame shell sets up the access hole through covering the panel to set up the access door at the access hole, be convenient for like this overhaul convenient to use to the inside subassembly of carrier loader main part. Because the frame surface of carrier loader main part covers there are car end panel and cover panel, the inside independent space that forms of carrier loader main part like this avoids external debris to get into the inside of carrier loader main part to effectively protect the inside subassembly of carrier loader. In addition, because the top load of carrier loader main part has a plurality of equipment, through laying the cover panel at the frame surface detachably of carrier loader main part, only need when changing top equipment like this dismantle the top cover panel can, convenient to use.

In one embodiment, the access opening comprises a battery access opening, and the battery access opening is arranged at the position, corresponding to the battery, of the covering panel; the access door comprises a battery door, and the battery door is arranged at the battery access hole.

In one embodiment, the access opening comprises a steering wheel access opening, and the steering wheel access opening is arranged at the position, corresponding to a steering wheel, of the covering panel; the access door comprises a steering wheel door, and the steering wheel door is arranged at the steering wheel access hole.

In one embodiment, the access door comprises an appliance access opening, and the appliance access opening is arranged at the position, corresponding to an appliance, of the covering panel; the access door comprises an electrical appliance door, and the electrical appliance door is arranged at the electrical appliance access hole.

In one embodiment, the frame shell further comprises a spring latch, and one side of the access door is rotatably connected with the covering panel, and the other side of the access door is connected with the covering panel through the spring latch.

In one embodiment, the vehicle end panel is provided with a through groove for installing an obstacle avoidance scanner, and the through groove extends along the length direction of the vehicle end panel.

In one embodiment, the vehicle-end panel is provided with four mounting portions for mounting the warning lamps, and the four mounting portions are respectively arranged at four corners of the vehicle-end panel.

In one embodiment, the covering panel positioned at the top of the frame is provided with a mounting hole for mounting a lifting device; and a wiring hole for the connecting wire of the steering wheel to pass through is formed in the covering panel positioned at the top of the frame.

In one embodiment, the cover panel comprises a first plate body and at least two second plate bodies, the first plate body is matched with the size of the side part of the frame, the first plate body is detachably covered on the side part of the frame, and the at least two second plate bodies are detachably covered on the top part of the frame.

The utility model provides an automatic guide carrier loader, automatic guide carrier loader include carrier loader main part and frame shell, frame shell locates outside the main part.

Foretell automatic guide carrier loader sets up the access hole through covering the panel to set up the access door at the access hole, be convenient for like this overhaul convenient to use to the inside subassembly of carrier loader main part. Because the frame surface of carrier loader main part covers there are car end panel and cover panel, the inside independent space that forms of carrier loader main part like this avoids external debris to get into the inside of carrier loader main part to effectively protect the inside subassembly of carrier loader. In addition, because the top load of carrier loader main part has a plurality of equipment, through laying the cover panel at the frame surface detachably of carrier loader main part, only need when changing top equipment like this dismantle the top cover panel can, convenient to use.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a frame shell according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the frame shell shown in FIG. 1 from another perspective.

Description of reference numerals:

10. a vehicle end panel; 11. a through groove; 12. an installation part; 20. a covering panel; 21. a first plate body; 22. A second plate body; 23. mounting holes; 24. a wiring hole; 30. an access door; 31. a battery door; 32. a steering wheel door; 33. an appliance door; 40. and a spring bolt.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 and 2, fig. 1 shows a schematic structural diagram of a frame shell according to an embodiment of the present invention, and fig. 2 shows a schematic structural diagram of another view angle of the frame shell shown in fig. 1. The utility model relates to a frame shell, including vehicle-end panel 10, cover panel 20 and access door 30. The end panel 10 is used for detachably covering the end of the frame of the carrier vehicle main body. The covering panel 20 is used for detachably covering the side part and the top part of the frame of the carrier loader main body, and the covering panel 20 is provided with an access hole. The access door 30 is arranged at the access opening, and the access door 30 can be opened and closed.

Foretell frame shell sets up the access hole through covering panel 20 to set up access door 30 at the access hole, be convenient for like this overhaul convenient to use to the inside subassembly of carrier loader main part. Because the frame surface of carrier loader main part covers there are car end panel 10 and cover panel 20, the inside of carrier loader main part forms independent space like this, avoids the inside of external debris entering carrier loader main part to effectively protect the inside subassembly of carrier loader. In addition, because the top of the carrier loader main body is loaded with a plurality of devices, the cover panel 20 is detachably paved on the outer surface of the frame of the carrier loader main body, so that the top device can be replaced only by detaching the cover panel 20 on the top, and the use is convenient.

Specifically, in the present embodiment, the end panel 10 and the cover panel 20 are made of 2MMQ235 iron plates. Of course, in other embodiments, the floor panel 10 and the cover panel 20 may be made of other materials, but not limited thereto. The end panel 10 and the cover panel 20 are detachably attached to the vehicle body frame by a mounting member. For example, the mounting members are screws, bolts, or the like.

In one embodiment, referring to fig. 1 and 2, the cover panel 20 includes a first plate 21 and at least two second plates 22, the first plate 21 is adapted to the size of the side portion of the frame, and the first plate 21 is detachably covered on the side portion of the frame. At least two second plates 22 cover the top of the frame. It should be noted that, because the top of the carrier loader main body is provided with a plurality of devices, at least two second plate bodies 22 are arranged on the top of the frame, so that when the devices on the top of the frame are replaced, only the second plate bodies 22 corresponding to the top of the frame need to be detached, the replacement is more convenient, and the replacement efficiency can be improved.

In one embodiment, referring to fig. 2, the access opening includes a battery access opening, and the battery access opening is disposed at a position of the cover panel 20 corresponding to the battery. Specifically, a battery access opening is provided in the first plate body 21 of the cover panel 20. The access door 30 includes a battery door 31, and the battery door 31 is provided at the battery access opening. So, set up the battery access hole through the position that corresponds the battery at cover panel 20, the battery access hole sets up battery door 31, is convenient for like this open battery door 31 and overhauls or change convenient to use to the battery. After the battery is overhauled, the battery door 31 is closed, so that external sundries can be prevented from entering the carrier vehicle main body from the battery overhaul port, and the battery and other internal components of the carrier vehicle main body are effectively protected.

Optionally, referring to fig. 2, the frame shell further includes a spring latch 40. The battery door 31 has one side rotatably connected to the cover panel 20 and the other side connected to the cover panel 20 by a spring latch 40. Specifically, one side of the battery door 31 is hinged to the cover panel 20 by a hinge or the like. So, install battery door 31 at the battery access hole, realize opening and shutting of battery door 31, simple structure, convenient to use. Of course, in other embodiments, the frame housing further comprises a buckle, and the battery door 31 is rotatably connected to the cover panel 20 at one side and connected to the cover panel 20 through the buckle at the other side, so that the battery door 31 can be opened and closed.

In one embodiment, referring to fig. 2, the access opening includes a rudder wheel access opening, and the rudder wheel access opening is provided at a position of the cover panel 20 corresponding to the rudder wheel. The access door 30 includes a steering wheel door 32, and the steering wheel door 32 is provided at the steering wheel access opening. So, set up the steering wheel access hole through the position that corresponds the steering wheel at cover panel 20, the steering wheel access hole sets up steering wheel door 32, is convenient for like this open steering wheel door 32 and overhauls or change convenient to use to the steering wheel. After the maintenance of the steering wheel is finished, the steering wheel door 32 is closed, so that external sundries can be prevented from entering the carrier vehicle main body from the steering wheel maintenance opening, and the steering wheel and other internal parts of the carrier vehicle main body are effectively protected.

Specifically, in the present embodiment, the cover panel 20 of the side portion of the frame is provided with a rudder wheel access opening, and the rudder wheel access opening and the battery access opening are arranged at an interval. Of course, in other embodiments, the number and the arrangement position of the rudder wheel access ports may be set according to actual requirements, which is not limited to this.

Optionally, referring to fig. 2, the frame shell further includes a spring latch 40. The steering wheel door 32 is rotatably connected to the cover panel 20 at one side and connected to the cover panel 20 at the other side by a spring bolt 40. Specifically, one side of the steering wheel door 32 is hinged to the cover panel 20 by a hinge or the like. So, install the steering wheel door 32 at the steering wheel access hole, realize opening and shutting of steering wheel door 32, simple structure, convenient to use. Of course, in other embodiments, the frame housing further comprises a snap, and the steering wheel door 32 is rotatably connected to the cover panel 20 at one side and connected to the cover panel 20 by the snap at the other side, so that the steering wheel door 32 can be opened and closed.

In one embodiment, referring to fig. 1, the access door 30 includes an appliance access opening, and the appliance access opening is disposed on the cover panel 20 at a position corresponding to an appliance. The access door 30 includes an appliance door 33, and the appliance door 33 is provided at an appliance access opening. So, set up the electrical apparatus access hole through the position that corresponds electrical apparatus at cover panel 20, the electrical apparatus access hole sets up electrical apparatus door 33, is convenient for like this open electrical apparatus door 33 and overhauls or change convenient to use to the electrical apparatus in the frame. After the electrical appliance is overhauled, the electrical appliance door 33 is closed, so that external sundries can be prevented from entering the carrier vehicle main body from the electrical appliance overhaul port, and the electrical appliance and other internal parts of the carrier vehicle main body are effectively protected.

Specifically to this embodiment, the cover panel 20 of frame lateral part is equipped with two electrical apparatus access holes, and two electrical apparatus access holes interval set up. And the electric appliance access hole is opposite to the battery access hole and the steering wheel access hole. Of course, in other embodiments, the number and the arrangement position of the electrical appliance access holes may be set according to actual requirements, which is not limited to this.

Optionally, referring to FIG. 1, the frame shell further includes a spring latch 40. The appliance door 33 is rotatably coupled to the cover panel 20 at one side and coupled to the cover panel 20 at the other side by a spring latch 40. Specifically, one side of the appliance door 33 is hinged to the cover panel 20 by a hinge or the like. So, install electrical apparatus door 33 at the electrical apparatus access hole, realize opening and shutting of electrical apparatus door 33, simple structure, convenient to use. Of course, in other embodiments, the frame shell further comprises a buckle, and one side of the electrical door 33 is rotatably connected to the cover panel 20, and the other side is connected to the cover panel 20 through the buckle, so that the electrical door 33 can be opened and closed.

In one embodiment, referring to fig. 1 and 2, the cart-side panel 10 is provided with a through slot 11 for installing an obstacle avoidance scanner, and the through slot 11 extends along the length direction of the cart-side panel 10. In the process of automatically walking in the automatic guide carrying vehicle-mounted workshop, the automatic guide carrying vehicle inevitably encounters rails, wind power pipelines and other road surface obstacles, so that the automatic guide carrying vehicle is prevented from moving forwards. In this embodiment, the vehicle end panel 10 is provided with the through groove 11, so that the obstacle avoidance scanner is conveniently installed in the through groove 11, and in the process of automatic operation of the automatic guidance carrier vehicle, the obstacle avoidance scanner scans the obstacle in front, and determines whether the automatic guidance carrier vehicle decelerates or stops according to the size and distance of the obstacle, thereby ensuring safe operation of the automatic guidance carrier vehicle. In addition, the obstacle avoidance scanner is installed in the through groove 11, so that the scanning range of the obstacle avoidance scanner is wider, and the automatic guide carrier loader can avoid obstacles on the ground.

In one embodiment, the vehicle end panel 10 is provided with a mounting portion 12 for mounting a warning light. Therefore, the warning lamp can be installed on the installation part 12, and is in a working state in the process of automatically guiding the carrier loader to run, so that surrounding personnel are reminded to avoid collision.

Further, four mounting portions 12 are provided, and the four mounting portions 12 are provided at four corners of the vehicle end panel 10. Therefore, warning lamps can be arranged at four corners of the vehicle end face plate 10 respectively, so that the warning effect of the automatic guide carrier loader is better and obvious, and the vehicle can be safely operated.

Specifically, the mounting portion 12 is provided with a groove, and the warning light is provided in the groove. Therefore, on one hand, the warning lamp can play a warning role; on the other hand, can avoid preventing that warning light and barrier from colliding and damaging the warning light, effectively prolong the life of warning light.

In one embodiment, referring to fig. 1 and 2, a cover panel 20 at the top of the frame is provided with a mounting hole 23, and the mounting hole 23 is used for mounting a lifting device. Specifically, the mounting hole 23 is provided in the second plate body 22 of the cover panel 20. It should be noted that the frame shell is arranged outside the carrier vehicle main body to form an automatic guiding carrier vehicle; in the using process, the spraying robot is arranged on the automatic guiding carrier loader, so that the automatic spraying of the vehicle identification can be realized, the number of operators is reduced, the labor intensity of workers is reduced, and the potential safety hazard is eliminated. However, the rail wagon marks are distributed over the whole wagon body in the height direction, and the range of the placement of the spraying robot and the spraying of the stripping pattern is required to be distributed over the whole wagon body. In the present embodiment, the cover panel 20 is provided with a mounting hole 23, which facilitates installation of the lifting device, thereby expanding the spraying range of the spraying robot in the height direction.

Specifically, in the present embodiment, one mounting hole 23 is provided, and the mounting hole 23 is provided in the second plate 22 on the top of the carrier vehicle main body. Of course, in other embodiments, the number and the arrangement position of the mounting holes 23 may be set according to actual requirements, and are not limited thereto.

In one embodiment, referring to fig. 1 and 2, the cover panel 20 at the top of the frame is provided with a wire hole 24, and the wire hole 24 is used for the connection wire of the steering wheel to pass through. Specifically, the wiring hole 24 is provided in the second plate body 22 of the cover panel 20. Thus, the connecting wire of the steering wheel can pass through the wire hole 24 and out of the carrier vehicle main body.

Specifically, in this embodiment, the two wire holes 24 are provided, and the two wire holes 24 are provided in the second plate 22 at the top of the carrier loader main body and correspond to the steering wheel. Of course, in other embodiments, the number and the arrangement position of the wire holes 24 may be set according to actual requirements, and are not limited thereto.

Referring to fig. 1 and 2, the automatic guided vehicle of the present invention includes a vehicle body and a frame shell of any of the above embodiments, wherein the frame shell is disposed outside the vehicle body.

Foretell automatic guide carrier loader sets up the access hole through covering panel 20 to set up access door 30 at the access hole, be convenient for like this overhaul convenient to use to the inside subassembly of carrier loader main part. Because the frame surface of carrier loader main part covers there are car end panel 10 and cover panel 20, the inside of carrier loader main part forms independent space like this, avoids the inside of external debris entering carrier loader main part to effectively protect the inside subassembly of carrier loader. In addition, because the top of the carrier loader main body is loaded with a plurality of devices, the cover panel 20 is detachably paved on the outer surface of the frame of the carrier loader main body, so that the top device can be replaced only by detaching the cover panel 20 on the top, and the use is convenient.

In one embodiment, the automated guided vehicle further comprises an obstacle avoidance scanner disposed in the through slot 11 of the vehicle end panel 10. So, at the in-process of automatic guided carrier loader automatic operation, keep away the barrier scanner and scan the barrier in the place ahead, according to barrier size and distance, judge whether the automatic guided carrier loader slows down or stops to guarantee the safe operation of automatic guided carrier loader. In addition, the obstacle avoidance scanner is installed in the through groove 11, so that the scanning range of the obstacle avoidance scanner is wider, and the automatic guide carrier loader can avoid obstacles on the ground.

In one embodiment, the automated guided vehicle further includes a warning light mounted to the mounting portion 12 of the vehicle end panel 10. Therefore, in the process of automatically guiding the carrier loader to run, the warning lamp is in a working state, so that surrounding personnel are reminded of avoiding collision. Of course, in other embodiments, the warning light may also be electrically connected to the obstacle avoidance scanner. For example, when the obstacle avoidance scanner detects that there is an obstacle in the scanning range, the obstacle scanner sends the signal to a warning light, and the warning light works to remind a worker to take a countermeasure in time.

Furthermore, four warning lights are provided, and the four warning lights are respectively provided at four corners of the vehicle end panel 10. Therefore, the warning effect of the automatic guide carrier loader is more obvious, and the safe operation of the automatic guide carrier loader is ensured. Of course, in other embodiments, one, two, three, or more than five warning lights may be provided.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A frame shell, comprising:

2. The frame shell according to claim 1, wherein the access opening comprises a battery access opening, and the battery access opening is arranged at a position of the covering panel corresponding to a battery; the access door comprises a battery door, and the battery door is arranged at the battery access hole.

3. The frame shell according to claim 1, wherein the access opening comprises a steering wheel access opening, and the steering wheel access opening is arranged at a position of the covering panel corresponding to a steering wheel; the access door comprises a steering wheel door, and the steering wheel door is arranged at the steering wheel access hole.

4. The frame shell according to claim 1, wherein the access door comprises an appliance access opening, and the appliance access opening is arranged at a position of the covering panel corresponding to an appliance; the access door comprises an electrical appliance door, and the electrical appliance door is arranged at the electrical appliance access hole.

5. A frame shell according to any of claims 1 to 4, further comprising a spring latch, wherein one side of the access door is pivotally connected to the cover panel and the other side is connected to the cover panel by the spring latch.

6. A frame shell according to any one of claims 1 to 4, wherein said cart end panel is provided with a through slot for mounting an obstacle avoidance scanner, said through slot extending along the length of said cart end panel.

7. The frame shell according to any one of claims 1 to 4, wherein the end surface plate is provided with four mounting portions for mounting a warning light, and the four mounting portions are respectively arranged at four corners of the end surface plate.

8. A frame shell according to any of claims 1 to 4, wherein a cover panel at the top of the frame is provided with mounting holes for mounting a lifting device; and a wiring hole for the connecting wire of the steering wheel to pass through is formed in the covering panel positioned at the top of the frame.

9. The frame shell according to any of claims 1 to 4, wherein said cover panel comprises a first plate body and at least two second plate bodies, said first plate body is adapted to the size of said frame side portion, said first plate body detachably covers said frame side portion, and at least two second plate bodies detachably cover said frame top portion.

10. An automated guided vehicle comprising a vehicle body and a frame shell according to any one of claims 1 to 9, the frame shell being located outside the vehicle body.