Assembly structure
By setting guide grooves and linkage mechanisms on the frame components that correspond to the cross-section of the wiring harness, the problem of misassembly of the wiring harness during vehicle deformation is solved, achieving correct fitting of the wiring harness and preventing damage, thus improving the safety and reliability of the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2025-11-10
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies have failed to effectively address the problem of misassembly of wiring harnesses during vehicle deformation, especially during the transition between driving and transportation modes, which can easily lead to wiring harness damage and assembly errors.
An assembly structure was designed. By setting guide grooves on the frame components that correspond to the cross-sectional shape of the wire harness, and by using a linkage mechanism to make the frame components reversibly deformable, the wire harness can be correctly fitted in different shapes, thus preventing misassembly.
It effectively prevents misassembly and damage to the wiring harness, simplifies the disassembly and assembly process, improves safety and reliability during vehicle deformation, and reduces the risk of liquid leakage.
Smart Images
Figure CN122026258A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an assembly structure. Background Technology
[0002] Patent Document 1 discloses a misfit prevention connector, which consists of a pair of male and female connectors that fit together. One connector has a misfit prevention protrusion at its fitting portion, and the other connector has a misfit prevention locking groove corresponding to the misfit prevention protrusion at its fitting portion. The misfit prevention connector is configured such that, based on the number and position of the misfit prevention protrusions and misfit prevention locking grooves provided at the two fitting portions, the outline shapes of the two fitting portions are symmetrical about the center point of the fitting surfaces, and can only fit into corresponding specific mating connectors in both positive and negative directions.
[0003] Patent Document 1: Japanese Patent Application Publication No. 2003-031316 Summary of the Invention
[0004] Patent document 1 does not disclose a countermeasure to ensure that the wire harness, including power lines or signal lines, is correctly installed in the specified position, rather than the connector portion.
[0005] The present invention was made in view of this situation, and its object is to provide an assembly structure that can prevent misassembly of wire harnesses.
[0006] The assembly structure involved in this invention comprises: a main body that can be reversibly deformed into a first form and a second form by changing the assembly state of multiple frame components; a guide groove disposed on each frame component and continuous when assembling multiple frame components; and a wire harness that does not protrude from the guide groove when engaged with the guide groove.
[0007] The cross-sectional shape of the guide groove corresponds to the cross-sectional shape of the wire harness.
[0008] The frame component is a hollow component, and the guide groove is disposed on the inner circumferential surface of the frame component.
[0009] The first form is a drivable driving form in which multiple frame components are assembled without relative movement, and the second form is a transportable form in which multiple frame components are separated.
[0010] The multiple frame components are connected via a linkage mechanism. The main body is deformed into the first form and the second form by moving the multiple frame components relative to each other around the linkage mechanism. The first form is a drivable driving form formed by assembling multiple frame components, and the second form is a transportable transport form formed by folding one frame component toward other frame components.
[0011] Invention Effects
[0012] According to the present invention, an assembly structure capable of preventing misassembly of wire harnesses can be provided. Attached Figure Description
[0013] Figure 1 This is a diagram showing the driving mode (first mode) of a vehicle with an assembly structure to which the implementation method is applied.
[0014] Figure 2 This is a diagram showing the transportation configuration (second configuration) of a vehicle with an assembly structure to which the implementation method is applied.
[0015] Figure 3 This is a diagram illustrating an example of the structure of a guide groove.
[0016] Figure 4 This is a diagram showing the connection between the first frame component and the third frame component, viewed from the direction of arrow A.
[0017] Figure 5 It is a sectional view of the clamping part where the frame component is installed.
[0018] Figure 6 This is a diagram illustrating other structural examples of the guide groove. Detailed Implementation
[0019] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. For clarity, the following description and drawings have been appropriately omitted and simplified. In addition, in each drawing, the same elements are labeled with the same symbols, and repeated descriptions have been omitted as necessary.
[0020] Furthermore, the invention as described in the claims is not limited to the following embodiments. Also, not all of the components described in the embodiments are necessarily necessary means to solve the problem. The orthogonal xyz coordinates shown in the figures are for ease of illustrating the positional relationships of the constituent elements. Generally, the positive z-axis is vertically upward, and the xy plane is horizontal.
[0021] This invention relates, for example, to an assembly structure suitable for a frame-type vehicle with a body mounted on a trapezoidal frame. The assembly structure constitutes a ladder-shaped trapezoidal frame that serves as the skeletal component of the frame-type vehicle. This vehicle typically reversibly transforms into a driving mode (first mode) and a transport mode (second mode).
[0022] Typically, noise, vibration, and harshness (NVH) are generated when the vehicle's engine or other drive components are in operation, or when it crosses steps. If large vibrations cause friction in fuel lines, these lines may break, leading to fluid leaks. In particular, gasoline, the liquid fuel used in ICE vehicles, is highly flammable, so even small leaks during folding and transport, or during deformation such as folding, can be extremely dangerous.
[0023] Furthermore, for ICE and BEV vehicles, it is redundant to completely drain and refill the engine oil or brake fluid and coolant each time the vehicle is deformed during driving and transport. Therefore, there is a requirement to safely deform the vehicle while it is enclosed in fluids.
[0024] Furthermore, in motorcycles, when the handlebars are turned, the brake hoses or motor wiring connected to the tire side are stretched and may break. Therefore, measures are taken to allow the cables or hoses to bend. Thus, in order to prevent damage to wiring, it is necessary to select sections that will not cause problems even if the wiring is bent, depending on the usage environment, or to consider the surrounding structure of the wiring.
[0025] In vehicles that can transform into driving and transport configurations, during disassembly and assembly, the flexible portions of wiring or conduits may become stuck and break. Furthermore, there is a risk of assembly errors when reassembling disassembled wiring harnesses.
[0026] Furthermore, the vehicle's floor requires high rust resistance and strength. This is because it must withstand rust caused by mud or de-icing agents (sodium chloride) kicked up by the tires, or impacts from gravel kicked up by the tire torque. If wiring or conduit is used in an exposed state, it will rust or be damaged by gravel. Therefore, the wiring or conduit must be designed for vehicle structures less susceptible to these problems.
[0027] Implementation
[0028] <Assembled Structure>
[0029] Figure 1 , 2 This is a diagram illustrating the structure of the assembly structure involved in the embodiment. Here, vehicle 10 will be used as an example for explanation. Figure 1 , 2 Only the assembled structure is shown; the vehicle body is not shown. Figure 1 This is a diagram showing the driving mode (first mode) of the vehicle 10 with the assembly structure of the embodiment applied. Figure 2 This diagram illustrates the transport configuration (second configuration) of the vehicle 10 with the assembly structure adapted to the embodiment. Figure 1 ,2 In the diagram, the forward direction of the vehicle is represented by the symbol FR, and the rearward direction by the symbol RR. Furthermore, the right side in the width direction is represented by the symbol RH, and the left side in the width direction by the symbol LH. The vehicle 10 is typically transported in a transport configuration, assembled at the transport destination to change to a driving configuration, and then driven in that configuration.
[0030] like Figure 1 As shown, the vehicle 10 has a pair of side frames 14, each including a first frame component 11, a second frame component 12, and a third frame component 13. The first frame component 11, the second frame component 12, and the third frame component 13 are extruded materials formed by extrusion molding. Here, the first frame component 11, the second frame component 12, and the third frame component 13 are assumed to be different components. Alternatively, the first frame component 11, the second frame component 12, and the third frame component 13 may also be the same component.
[0031] The first frame component 11, the second frame component 12, and the third frame component 13 constitute a side frame 14 extending in the longitudinal direction of the vehicle 10. A pair of side frames 14 are arranged side by side in the vehicle width direction. Between the pair of side frames 14, a frame crossbeam (not shown) is erected in the vehicle width direction to form a trapezoidal frame.
[0032] A vehicle body mounting bracket (not shown) is mounted on a pair of side guide rails. A vehicle body (not shown) with a floor panel is mounted on the mounting bracket. Components necessary for the movement of the vehicle 10 are mounted on the floor panel. For example, at least the drive unit of the vehicle 10 is mounted on the first frame member 11 of the floor panel. Although... Figure 1 Not shown in the diagram, but the floor panel houses the battery, engine, motor, and other components. Furthermore, the floor panel can also accommodate vehicle parts such as seats needed for driving mode, or tools needed for mode changes.
[0033] A second frame member 12 is provided on the FR side of the vehicle 10, and a third frame member 13 is provided on the RR side. The second frame member 12 and the third frame member 13 are configured to clamp the first frame member 11.
[0034] At least one of a front wheel and a rear wheel (not shown) is mounted on the second frame component 12 and the third frame component 13. For example, the front wheel is mounted on the second frame component 12 and the rear wheel is mounted on the third frame component 13. Alternatively, in the transport configuration, the front and rear wheels are not mounted on the second frame component 12 and the third frame component 13. When assembled at the transport destination and transformed into a driving configuration, the front and rear wheels can be mounted. In this case, the front and rear wheels can be transported together with the vehicle 10 or procured locally.
[0035] Additionally, a handle or accelerator pedal can be provided on the second frame component 12 of the floor panel when the vehicle is transformed into a driving mode at the destination.
[0036] Furthermore, as an example, the first frame component 11, the second frame component 12, and the third frame component 13 are connected via linkage mechanisms to form the "main body". Figure 1 In the example shown, the first frame component 11 and the second frame component 12, and the first frame component 11 and the third frame component 13 are respectively connected relatively movablely via linkage mechanisms. The "body" can be transformed into a driving mode and a transport mode by moving the first frame component 11, the second frame component 12, and the third frame component 13 relative to each other around the linkage mechanism.
[0037] The driving configuration is a drivable form assembled from multiple frame components. For example... Figure 1 As shown, in the driving mode, the first frame component 11, the second frame component 12, and the third frame component 13 are assembled and maintained in a flat state, and the vehicle 10 becomes drivable. For example, the driver sits on the seat (not shown) on the first frame component 11 and operates the handle or accelerator pedal provided on the second frame component 12 to drive the vehicle 10.
[0038] The transport configuration is a transportable form achieved by folding one frame component onto other frame components. For example... Figure 2 As shown, in the transport configuration, the second frame component 12 and the third frame component 13 remain folded toward the first frame component 11, and the vehicle 10 becomes transportable. In the transport configuration, the second frame component 12 and the third frame component 13 are arranged opposite each other, forming a U-shape when viewed from the y-direction.
[0039] Furthermore, as another example, the first frame component 11, the second frame component 12, and the third frame component 13 can also be fitted together to form the "main body". In this example, the first frame component 11 and the second frame component 12, and the first frame component 11 and the third frame component 13, are not relatively movable. In this case, as described above, the driving mode is a drivable mode formed by assembling multiple frame components. The transport mode is a transportable mode formed by separating multiple frame components.
[0040] Wiring harnesses 15 are assembled on opposite surfaces of a pair of side frames 14. The wiring harnesses 15 may include, for example, cables or wires for signal or power supply, as well as conduits or rubber hoses. The wiring harnesses 15 may include strip-shaped components, wire-shaped components, or components formed by bundling these components together.
[0041] Headlights, turn indicators, brake lights, etc., are essential equipment for the vehicle 10 that is not powered by an internal combustion engine (ICE) or a battery electric vehicle (BEV). Wiring harness 15 may include power lines connecting the aforementioned battery and the headlights or taillights, etc., that receive power from the battery. These power lines are wiring that activates the lights by receiving signals from the driver indicating whether the lights are on or off.
[0042] Furthermore, wiring harness 15 is not limited to wiring connecting the battery and the light. Wiring harness 15 may include, for example, power lines that supply power to the electric components of the vehicle, such as sensors or cameras necessary for vehicle air conditioning, vehicle navigation, or autonomous driving. That is, any wiring that connects a "power source" such as a battery or generator to "electric components" operated by electricity can be applied to the assembly structure of the embodiment.
[0043] Furthermore, the wiring harness 15 is not limited to power lines; it can also be a signal line for signals such as the illumination and extinguishing of indicator lights. Additionally, since the current and voltage flowing through signal lines are lower than those through power lines, thinner diameter wires are typically used. Therefore, signal lines are more prone to physical breakage than power lines, making it preferable to use signal lines in the assembly structure of the embodiment. Furthermore, the wiring harness 15 can also be a flexible conduit for liquid fuels, engine oil, brake fluid, coolant, etc.
[0044] Furthermore, when the vehicle 10 can be folded via the linkage mechanism, in the driving mode, the portion of the wiring harness 15 that is stretched during folding is in a flexed state. That is, in the driving mode, the wiring harness 15 is in a slack state. In the transport mode, the wiring harness 15 becomes stretched. That is, as the wiring harness 15 transforms from the driving mode to the transport mode, it changes from a flexed state to a stretched state. By adopting this structure, damage to the wiring harness 15 can be suppressed.
[0045] Furthermore, the vehicle 10 can reversibly transform into a driving mode and a transport mode while the liquid is sealed inside the piping. Therefore, each time the vehicle 10 is transformed, the hassle of draining the liquid from the piping and re-injecting it can be eliminated.
[0046] Both ends of the wiring harness 15 are connected and secured to connector components located at predetermined positions on the vehicle 10. Furthermore, the portion of the wiring harness 15, excluding its ends, is held in place by clamping components 17 (see reference 17). Figure 4 )fixed.
[0047] <Frame Components>
[0048] Figure 3 This is a diagram showing a structural example of the guide groove 16. Figure 3In the middle, it shows the view from the direction of the arrow. Figure 1 The diagram shows the BB section, CC section, and DD section. The BB section is the section of the second frame component 12, the CC section is the section of the first frame component 11, and the DD section is the section of the third frame component 13. Figure 4 This is a diagram showing the connection between the first frame component 11 and the third frame component 13, viewed from the direction of arrow A.
[0049] like Figure 3 As shown, the first frame component 11, the second frame component 12, and the third frame component 13 are all hollow, cylindrical components. This enables the vehicle 10 to be lightweight. Guide grooves 16 are respectively provided on the outer peripheral surfaces of the first frame component 11, the second frame component 12, and the third frame component 13. Figure 1 As shown, the guide grooves 16 of the first frame component 11, the second frame component 12, and the third frame component 13, which are respectively provided on one side frame 14, are provided on the surface (hereinafter referred to as the "inner surface") opposite to the other side frame 14.
[0050] The frame components are configured such that, in adjacent frame components, one frame component is inserted into another frame component. For example, as... Figure 4 As shown, the inner periphery of the third frame component 13 is larger than the outer periphery of the first frame component 11, and the first frame component 11 can be inserted into the third frame component 13.
[0051] The linkage mechanism can be, for example, the mating portion of the first frame member 11 and the third frame member 13. The linkage mechanism may have a fastening portion (not shown) for securing the first frame member 11 and the third frame member 13. The fastening portion typically consists of a bolt and a nut. The first frame member 11 and the third frame member 13 can be structures capable of rotating about the central axis of the fastening portion. For example, in the mating portion, the third frame member 13 and the first frame member 11 can be machined into a shape capable of rotating about the central axis of the fastening portion. However, the linkage mechanism is not limited to the above example.
[0052] The first frame member 11 can be pressed into the third frame member 13. This allows the first frame member 11 and the third frame member 13 to be integrally integrated without relative movement. Furthermore, gaps can be provided between adjacent frame members, and the frame members can be connected via reinforcing members. The frame members and reinforcing members can be fixed, for example, by bolts.
[0053] The guide groove 16 is continuous during the assembly of the first frame component 11, the second frame component 12, and the third frame component 13. Figure 4In this assembly, the third frame component 13 and the first frame component 11 are assembled by fitting the first frame component 11 into the hollow portion of the third frame component 13. At this time, the guide groove 16 of the first frame component 11 and the guide groove 16 of the second frame component 12 extend along a straight line.
[0054] The wire harness 15 is fitted into the guide groove 16. The cross-sectional shape of the guide groove 16 corresponds to the cross-sectional shape of the wire harness 15. For example, refer to... Figure 3 The second frame component 12 has a guide groove 16 with a semi-circular cross-section on its BB section. In this case, the cross-sectional shape of the wire harness 15 is circular.
[0055] Furthermore, referring to the CC section, the first frame member 11 is provided with a guide groove 16 having a triangular cross-section. In this case, the cross-sectional shape of the wire harness 15 is triangular. Referring to the DD section, the third frame member 13 is provided with a guide groove 16 having a trapezoidal cross-section. In this case, the cross-sectional shape of the wire harness 15 is trapezoidal.
[0056] Thus, in this embodiment, the cross-sectional shape of the guide groove 16 corresponds to the cross-sectional shape of the wire harness 15. For example, if the wire harness 15, which has a circular cross-section, is incorrectly assembled into the guide groove 16, which has a triangular cross-section, the wire harness 15 will protrude from the end face of the frame component, indicating an incorrect assembly. With this structure, in a vehicle 10 that can be folded or disassembled, assembly errors in wiring or conduits such as power lines / signal lines can be prevented. Furthermore, disassembly / assembly can be easily performed regardless of the skill level or language of the operator performing the assembly.
[0057] Furthermore, it is not necessary for the shape of the wire harness 15 to correspond to that of the guide groove 16 for all wire harnesses 15. For example, the shape of the guide groove 16 can be strictly matched for wire harnesses 15 in systems such as motor or brake operating systems, or systems related to the driver's life when the vehicle 10 is in motion, while the correspondence standard for the shape of the guide groove 16 for wire harnesses 15 in systems such as interior lights or air conditioning can be relaxed. That is, a mistake-proofing structure for assembling wire harnesses 15 using guide grooves 16 can be adopted according to the intended use of the wire harness 15.
[0058] Furthermore, sometimes different wire harnesses 15 are fitted in the guide grooves 16 of the first frame component 11, the second frame component 12, and the third frame component 13, or they may be fitted in the guide groove 16 of a wire harness 15 with a partially different cross-sectional shape that extends in a straight line.
[0059] like Figure 4As shown, clamping members 17 are provided on the first frame member 11 and the third frame member 13. The clamping members 17 fix the wire harness 15, which is fitted into the guide groove 16, to the first frame member 11 and the third frame member 13. The clamping members 17 are, for example, resin clips, U-bolts, or U-shaped bolts.
[0060] exist Figure 4 In the example shown, one clamping member 17 is provided on each of the first frame member 11 and the third frame member 13. Alternatively, multiple clamping members 17 may be provided on each of the first frame member 11 and the third frame member 13. Figure 5 This is a cross-sectional view of the portion where the clamping component 17 is located. Figure 5 As an example, a cross-sectional view of the first frame component 11 and the second frame component 12 is shown. Figure 5 In the diagram, section EE is the section of the clamping member 17 of the second frame member 12, and section FF is the section of the clamping member 17 of the third frame member 13.
[0061] refer to Figure 3 , 5 If the wire harness 15 is fitted into the guide groove 16, the wire harness 15 will not protrude from the guide groove 16. That is, the wire harness 15 fitted into the guide groove 16 is invisible when viewed from above or below. This prevents damage to the wire harness 15 caused by splashing mud or gravel.
[0062] Furthermore, by providing guide grooves 16 on the opposing inner surfaces of the side frame 14, the wiring harness 15 can be kept out of sight from the outside of the vehicle 10, improving design flexibility. Additionally, the wiring harness 15 can protrude from the guide grooves 16 when there is minimal external influence.
[0063] Figure 6 This is a diagram showing other structural examples of the guide groove 16. In Figure 6 In, it is shown as Figure 1 Another example of the CC section is the C'-C' section, and another example of the DD section is the D'-D' section. Additionally, in... Figure 6 In order to make a comparison, the following is shown Figure 1 BB section.
[0064] Referring to section BB, the guide groove 16 is formed at the center of the second frame member 12 in the height direction (z direction). In contrast, referring to section C'-C', the guide groove 16 is located higher (+z side) than the center of the first frame member 11 in the height direction. The guide groove 16 can be formed at any location on the inner surface of the first frame member 11, the second frame member 12, and the third frame member 13.
[0065] Furthermore, referring to section D'-D', the guide groove 16 is provided on the inner circumferential surface of the hollow third frame member 13. In the example shown in section D'-D', the wire harness 15 is configured to pass through the interior of the third frame member 13. This prevents the wire harness 15 from being damaged by splashing mud or gravel. Moreover, since the structure prevents a person from touching the wire harness 15, electric shock can be suppressed. That is, if the design ensures that the wire harness 15 does not protrude from the guide groove 16, the location of the guide groove 16 can be any position on the frame member.
[0066] Alternatively, the guide groove 16 can also be located in a position visible from the outside of the vehicle 10. The guide groove 16 can be the outer side, the top side, or the bottom side of the outer peripheral surface of the side frame 14 opposite to the inner side.
[0067] Furthermore, on the RH side and LH side, the first frame component 11, the second frame component 12, and the third frame component 13 can be the same component. For example, guide grooves 16 of the same shape can be provided at the same position on the first frame component 11, the second frame component 12, and the third frame component 13.
[0068] Furthermore, in the above examples, each frame component is a hollow, cylindrical structure, but this is not a limitation. For example, to improve the rigidity of the trapezoidal frame, each frame component can be a solid, prism-shaped structure.
[0069] exist Figure 1 In this illustration, vehicle 10 is used as an example of an assembled structure, but the assembled structure is not limited to vehicle 10. An assembled structure is any structure that can reversibly deform into a first form and a second form by changing the assembly state of multiple frame components. For example, vehicle 10 can be a bus, truck, passenger car, motorcycle, single-seat vehicle, drone, etc., and its purpose is not limited.
[0070] Furthermore, the present invention is not limited to the above-described embodiments, and appropriate modifications can be made without departing from the spirit of the invention.
[0071] Symbol Explanation
[0072] 10-Vehicle, 11-First frame component, 12-Second frame component, 13-Third frame component, 14-Side frame, 15-Wire harness, 16-Guide groove, 17-Clamping component.
Claims
1. An assembled structure, characterized in that, have: The main body can reversibly deform into a first form and a second form by changing the assembly state of multiple frame components; Guide slots, which are provided on each frame component and are continuous when assembling multiple frame components; and The wire harness does not protrude from the guide groove when it is fitted into the guide groove.
2. The assembled structure according to claim 1, characterized in that, The cross-sectional shape of the guide groove corresponds to the cross-sectional shape of the wire harness.
3. The assembled structure according to claim 1, characterized in that, The frame component is a hollow component. The guide groove is disposed on the inner circumferential surface of the frame component.
4. The assembled structure according to claim 1, characterized in that, The first configuration is a drivable driving configuration in which multiple frame components are assembled in a manner that prevents relative movement. The second form is a transportable form consisting of multiple frame components separated from each other.
5. The assembled structure according to claim 1, characterized in that, The various frame components are connected via a linkage mechanism. The main body is deformed into the first and second forms by causing the plurality of frame components to move relative to each other about the linkage mechanism. The first configuration is a drivable driving configuration formed by assembling multiple frame components. The second form is a transportable form formed by folding one frame component into other frame components.