Inter-plane distance derivation system and inter-plane distance determination system

Abstract

To automatically and accurately derive the shortest distance between a surface to which a weather strip is attached and a surface with which the weather strip is brought into contact.SOLUTION: A system creates a drawing of a cross-section C passing through a reference point P and orthogonal to a cross-section reference line Ls. The center of gravity G of a weather strip 60 on the cross-section C is acquired, and an attachment surface F1 on the cross-section C is set, based on the positional relation between the reference point P and the center of gravity G, as a line segment having a predetermined width. Measurement direction lines Lm orthogonal to the attachment surface F1 are set. The measurement direction lines Lm are extended from both ends of the attachment surface F1 toward the center of gravity G, and each of the measurement direction lines Lm interfering with a line of a component is set as a contact surface F2. The minimum value between both ends of the attachment surface F1 of distances between the attachment surface F1 and the contact surface F2 in the direction along the measurement direction line Lm is derived as the shortest distance dmin.SELECTED DRAWING: Figure 7

Description

Technical Field

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[0001] The present invention relates to a surface distance derivation system for deriving the shortest distance between the surface to which a weatherstrip is attached and the surface with which the weatherstrip abuts, and a surface distance determination system for determining whether the shortest distance is within a reference range.

Background Art

[0002] Conventionally, vehicles such as automobiles include a side panel that forms the side surface of the body and has an entrance / exit, and a slide door that opens and closes the entrance / exit. A weatherstrip is attached to the outer peripheral edge of the slide door. The weatherstrip has an attachment portion attached to the outer peripheral edge of the slide door and an abutment portion that can abut against the inner peripheral edge of the entrance / exit. The weatherstrip seals the space between the outer peripheral edge of the slide door and the inner peripheral edge of the entrance / exit when the slide door closes the entrance / exit (see, for example, Patent Document 1).

[0003] Conventionally, in the design of such vehicles, an operator derives the shortest distance between the surface to which the attachment portion of the weatherstrip is attached on the outer peripheral edge of the slide door and the surface to which the abutment portion abuts on the inner peripheral edge of the entrance / exit, and determines whether the shortest distance is within a reference range. Specifically, the operator manually creates a cross-sectional reference line extending in the extending direction of the weatherstrip. Subsequently, the operator manually sets a plurality of reference points on the cross-sectional reference line. Subsequently, the operator creates a drawing of a cross-section passing through the reference points and perpendicular to the cross-sectional reference line. Subsequently, the operator selects, based on their experience, the position considered to be the shortest distance on the drawing, and derives the distance between the surface to which the attachment portion of the weatherstrip is attached and the surface to which the abutment portion abuts at the selected position as the shortest distance. And when the derived shortest distance is outside the reference range, the operator modifies the design of the side panel or the slide door.

Prior Art Documents

Patent Documents

[0004] [Patent Document 1] Japanese Patent Publication No. 2009-132335 [Overview of the project] [Problems that the invention aims to solve]

[0005] However, in the conventional method described above, each step for deriving the shortest distance and the determination of whether the derived shortest distance falls within the reference range are performed manually by the worker, which requires a great deal of effort and time. Furthermore, since the position considered to be the shortest distance is selected by the worker, the derived shortest distance may vary depending on the worker. As a result, the accuracy of the determination result may also vary depending on the worker. [Means for solving the problem]

[0006] This document describes various embodiments of a system for deriving the inter-plane distance and various embodiments of a system for determining the inter-plane distance, which are intended to solve the above problems. [Aspect 1] A device for designing a mobile body comprising: a body having an opening; an opening / closing body for opening and closing the opening; and a weatherstrip having a mounting portion attached to either the inner periphery of the opening or the outer periphery of the opening / closing body, and a contact portion that can abut against the other, thereby sealing the space between the inner periphery and the outer periphery, wherein the device derives the shortest distance between the surface to which the mounting portion is attached and the surface to which the contact portion abuts, When the body and the opening / closing body to which the mounting portion is attached are designated as the mounting target, and the contact portion to which the contact portion contacts are designated as the contact target, and the weatherstrip is attached to the mounting target, and the opening / closing body is closing the opening, the line passing through the position on the mounting portion and extending along the extending direction of the weatherstrip is defined as the cross-sectional reference line, Based on the input operation, the section reference line and reference points on the section reference line are set, and the weatherstrip is 3D data, a drawing of a section passing through the reference points and perpendicular to the section reference line is created, the centroid of the weatherstrip is obtained on the section, and the mounting surface on the section to which the mounting part is attached is set as a line segment having a predetermined width based on the positional relationship between the reference points and the centroid, A measurement direction line setting unit that is located on the aforementioned cross-section and sets a measurement direction line perpendicular to the mounting surface, A contact surface setting unit extends the measurement direction lines from both ends of the mounting surface on the cross-section toward the center of gravity, and sets the lines of the parts that each of the measurement direction lines interferes with as the contact surface of the object to be contacted, The system includes a shortest distance deriving unit that derives the shortest distance as the minimum value between the ends of the mounting surface, which is the distance between the mounting surface and the contact surface in the direction along the measurement direction line. A system for deriving the distance between surfaces.

[0007] According to this embodiment, when a cross-sectional reference line and a reference point on the cross-sectional reference line are set by the operator's input, the mounting surface setting unit creates a drawing of a cross section that passes through the reference point and is perpendicular to the cross-sectional reference line. The centroid of the weatherstrip on the cross section is then obtained, and the mounting surface on the cross section is set as a line segment with a predetermined width based on the positional relationship between the reference point and the centroid. The measurement direction line setting unit sets a measurement direction line that is located on the cross section and is perpendicular to the mounting surface. The contact surface setting unit sets the lines of the parts that interfere with each of the measurement direction lines extending from both ends of the mounting surface on the cross section toward the centroid as the contact surface to be contacted. The shortest distance derivation unit derives the shortest distance between the ends of the mounting surface from the distance between the mounting surface and the contact surface in the direction along the measurement direction line. Therefore, the shortest distance between the surface to which the weatherstrip is attached and the surface to which the weatherstrip is contacted can be derived automatically and accurately.

[0008] [Aspect 2] Based on an input operation that inputs the position of one of the aforementioned reference points and the interval between adjacent aforementioned reference points on the cross-sectional reference line, a plurality of aforementioned reference points are set at equal intervals on the cross-sectional reference line. The inter-face distance derivation system described in Embodiment 1.

[0009] According to this embodiment, the operator can set multiple reference points at equal intervals along the cross-sectional reference line by inputting the position of one reference point and the interval between adjacent reference points on the cross-sectional reference line. Therefore, the effort of manually setting multiple reference points one by one can be eliminated.

[0010] [Aspect 3] A system for deriving the inter-face distance according to Embodiment 1 or Embodiment 2, A determination unit that determines whether the shortest distance derived by the shortest distance derivation unit is within the reference range, The system includes a display unit that displays the determination result from the determination unit. A system for determining the distance between surfaces.

[0011] With this configuration, the operator can visually determine, via the display unit, whether the derived shortest distance is within the reference range. Therefore, it is easy to determine whether the shortest distance between the surface to which the weatherstrip is attached and the surface to which the weatherstrip is in contact is within the reference range.

[0012] [Aspect 4] The display unit displays, along with the determination result, the shortest distance, the reference range, information regarding the position of the reference point, and a cross-sectional drawing. The inter-face distance determination system according to Embodiment 3.

[0013] According to the same configuration, an operator can visually grasp the shortest distance, the reference range, the position information of the reference point, and the drawing of the cross-section together with the determination result. Therefore, based on various information displayed on the display unit, the operator can obtain specific suggestions when modifying the design of the body and the opening / closing body.

Effect of the Invention

[0014] According to the surface distance derivation system according to the present invention, the shortest distance between the surface to which the weatherstrip is attached and the surface with which the weatherstrip abuts can be automatically and accurately derived. Further, according to the surface distance determination system according to the present invention, it is possible to easily grasp whether or not the shortest distance between the surface to which the weatherstrip is attached and the surface with which the weatherstrip abuts is within the reference range.

Brief Description of the Drawings

[0015] [Figure 1] FIG. 1 is a block diagram of the entire system for an embodiment of the surface distance derivation system and the surface distance determination system. [Figure 2] FIG. 2 is a flowchart showing the execution procedure of the surface distance derivation process. [Figure 3] FIG. 3 is a flowchart showing the execution procedure of the surface distance determination process. [Figure 4] FIG. 4 is an exploded perspective view of a side panel, a weatherstrip, and a sliding door. [Figure 5] FIG. 5 is a perspective view of a state in which an opening of a side panel is closed by a sliding door to which a weatherstrip is attached. [Figure 6] FIG. 6 is a perspective cross-sectional view of a weatherstrip. [Figure 7] FIGS. 7(a) to 7(e) are cross-sectional views centered on a weatherstrip for explaining the processing procedure by the surface distance derivation system. [Figure 8] FIGS. 8(a) to 8(c) are diagrams showing an example of determination results and the like at each reference point displayed on the display unit.

Embodiment for Carrying Out the Invention

[0016] Hereinafter, referring to FIGS. 1 to 8, an embodiment in which a surface-to-surface distance derivation system and a surface-to-surface distance determination system are embodied will be described. As shown in FIG. 1, the surface-to-surface distance derivation system and the surface-to-surface distance determination system are used in the design of a moving body.

[0017] <Moving body> As shown in FIGS. 4 and 5, the moving body of this embodiment is an automobile including a body 40, an opening / closing body 50, and a weather strip 60. Specifically, the moving body is an automobile equipped with a sliding door.

[0018] The body 40 is a side panel of the automobile and has an opening 41 that functions as an entrance / exit. The opening / closing body 50 is a sliding door and opens and closes the opening 41 by sliding in the front-rear direction of the automobile.

[0019] As shown in FIGS. 4 and 6, the weather strip 60 has an attachment portion 61 attached to the outer peripheral edge 51 of the opening / closing body 50 and a contact portion 62 that can contact the inner peripheral edge 42 of the opening 41. The weather strip 60 seals the space between the inner peripheral edge 42 and the outer peripheral edge 51 when the opening / closing body 50 closes the opening 41.

[0020] The attachment portion 61 and the contact portion 62 of this embodiment correspond to the attachment target and the contact target in the [Means for Solving the Problems] column, respectively. The surface-to-surface distance derivation system derives the shortest distance dmin between the surface to which the weather strip 60 is attached and the surface with which the weather strip 60 contacts. Also, the surface-to-surface distance determination system determines whether the derived shortest distance dmin is within a reference range.

[0021] The inter-plane distance derivation system and the inter-plane distance determination system include a terminal device 10, an input unit 18, and a display unit 19. <Terminal device 10> As shown in Figure 1, the terminal device 10 includes a storage unit 11 for storing various control programs. The terminal device 10 also includes a mounting surface setting unit 12, a measurement direction line setting unit 13, a contact surface setting unit 14, a shortest distance derivation unit 15, and a determination unit 16, which perform various calculations according to the control programs.

[0022] The terminal device 10 is connected to a server (not shown) in a communication manner. The server stores various types of data related to the mobile device. The terminal device 10 receives input from the server. These types of data include 3D data of the body 40, the opening / closing body 50, and the weatherstrip 60.

[0023] The terminal device 10 is electrically connected to an input unit 18 and a display unit 19. The input unit 18 is a mouse or keyboard, etc. The display unit 19 is a liquid crystal display, etc. Next, with reference to Figure 2, the procedure for deriving the inter-plane distance will be explained. Note that the following process is performed by the terminal device 10.

[0024] As shown in Figure 2, in this series of processes, first, in step 1 (S1), various types of data are read into the terminal device 10. Next, in step 2 (S2), the cross-sectional reference line Ls and reference point P, which are set based on the input operation by the input unit 18, are read.

[0025] Here, as shown in Figures 5 and 6, the cross-sectional reference line Ls is a line that passes through a position on the mounting portion 61 and extends along the extending direction of the weatherstrip 60. More specifically, it is the line when the weatherstrip 60 is attached to the opening / closing body 50 and the opening / closing body 50 is closing the opening 41. In this embodiment, the cross-sectional reference line Ls is manually set by the worker so that it passes through the center in the width direction of the mounting portion 61.

[0026] A reference point P is a point on the cross-sectional reference line Ls. Multiple reference points P are set on the cross-sectional reference line Ls at intervals from each other. In this embodiment, based on an input operation that inputs the position of one reference point P and the interval ΔL (e.g., 10 mm) between adjacent reference points P on the cross-sectional reference line Ls, multiple reference points P are set at equal intervals on the cross-sectional reference line Ls.

[0027] Next, in step 3 (S3), the mounting surface setting unit 12 creates a drawing of section C that passes through the reference point P and is perpendicular to the section reference line Ls, based on the section reference line Ls, the reference point P, and the 3D data of the weatherstrip 60 (see Figure 7(a)). The centroid G of the weatherstrip 60 on section C is also obtained. Then, based on the positional relationship between the reference point P and the centroid G, the mounting surface F1 on section C to which the mounting part 61 will be attached is set.

[0028] More specifically, as shown in Figure 7(b), on the cross-section C, the mounting surface F1 is set as a line segment of a predetermined length on the line 50a, which is located on the side of the centroid G, among the two lines 50a and 50b (lines indicating the outer and inner surfaces of the opening / closing body 50, respectively) of the opening / closing body 50 located near the reference point P. Then, a line segment representing the mounting surface F1 is created on the cross-section C. Here, the width of the mounting surface F1 is set so that the reference point P is at the center. Note that the width of the mounting surface F1 is predetermined for each part number of the weatherstrip 60.

[0029] Next, in step 4 (S4), the measurement direction line setting unit 13 sets a measurement direction line Lm that is located on the cross-section C and perpendicular to the mounting surface F1 (see the dashed line in Figure 7(c)).

[0030] Next, in step 5 (S5), the contact surface setting unit 14 extends measurement direction lines Lm (see the dashed line in Figure 7(d)) ​​from both ends of the mounting surface F1 on the cross section C toward the center of gravity G. Then, the line of the part that each of the measurement direction lines Lm interferes with (in this case, the line 40a indicating the outer surface of the side panel) is set as the contact surface F2 of the body 40.

[0031] Next, in step 6 (S6), the shortest distance derivation unit 15 derives the shortest distance dmin as the minimum value between the ends of the mounting surface F1 among the distances between the mounting surface F1 and the contact surface F2 in the direction along the measurement direction line Lm (see Figure 7(e)).

[0032] Once each of the processes from S3 to S6 has been performed for all of the multiple reference points P, this series of processes is completed. Next, with reference to Figure 3, the procedure for executing the inter-plane distance determination process will be explained. Note that the following process is executed by the terminal device 10.

[0033] As shown in Figure 3, in this series of processes, first, various data set in the inter-plane distance derivation process, the shortest distance dmin, and the reference range are read (step 11 (S11)).

[0034] Next, the determination unit 16 determines whether the shortest distance dmin is within the reference range (step 12 (S12)). If the shortest distance dmin is within the reference range (S12:YES), then in step 13 (S13), the judgment result "○", the shortest distance dmin, the reference range, information regarding the position of the reference point P, and a drawing of the cross-section C are displayed on the display unit 19.

[0035] On the other hand, if the shortest distance dmin is not within the reference range (S12:NO), in step 14 (S14), the judgment result "×", the shortest distance dmin, the reference range, information regarding the position of the reference point P, and a drawing of the cross section C are displayed on the display unit 19.

[0036] Once processes S12 and S13 (S14) have been performed for all of the multiple reference points P, this series of processes is completed. Here, Figure 8 shows an example of the judgment results, etc., at each reference point P displayed on the display unit 19.

[0037] In the example shown in Figure 8(a), a drawing of section C is displayed where the reference point P is located at "FR-1_4". In this case, the shortest distance dmin is "13.5", the threshold defining the reference range is "13.5±0.1", and the judgment result is displayed as "○".

[0038] In the example shown in Figure 8(b), a drawing of section C is displayed where the reference point P is located at "FR-2_7". In this case, the shortest distance dmin is "13.4", the threshold defining the reference range is "13.5±0.1", and the judgment result is displayed as "○".

[0039] In the example shown in Figure 8(c), a drawing of section C is displayed where the reference point P is located at "LWR_4". In this case, the shortest distance dmin is "14.4", the threshold defining the reference range is "13.5±0.1", and the judgment result is displayed as "×".

[0040] If the result is "○", the result "○", the shortest distance dmin, and the position of reference point P will be displayed in black. If the result is "×", the result "×", the shortest distance dmin, and the position of reference point P will be displayed in red.

[0041] Next, the operation of this embodiment will be described. When the operator inputs data and sets a cross-sectional reference line Ls and a reference point P on the cross-sectional reference line Ls, the mounting surface setting unit 12 creates a drawing of cross-section C that passes through the reference point P and is perpendicular to the cross-sectional reference line Ls. The center of gravity G of the weatherstrip 60 on the cross-section C is then obtained, and the mounting surface F1 on the cross-section C is set as a line segment with a predetermined width based on the positional relationship between the reference point P and the center of gravity G. The measurement direction line setting unit 13 sets a measurement direction line Lm located on the cross-section C and perpendicular to the mounting surface F1. The contact surface setting unit 14 sets the lines 40a of the parts that interfere with each of the measurement direction lines Lm extending from both ends of the mounting surface F1 on the cross-section C toward the center of gravity G as the contact surface F2 of the body 40. Then, the shortest distance derivation unit 15 derives the shortest distance dmin as the minimum value between the ends of the mounting surface F1, which is the distance between the mounting surface F1 and the contact surface F2 in the direction along the measurement direction line Lm.

[0042] Next, the effects of this embodiment will be described. (1) By performing the above-described action, the shortest distance dmin between the surface to which the weatherstrip 60 is attached and the surface to which the weatherstrip 60 is in contact can be automatically and accurately determined.

[0043] (2) By inputting the position of one reference point P and the interval ΔL between adjacent reference points P on the cross section reference line Ls, the operator can automatically set multiple reference points P at equal intervals on the cross section reference line Ls. Therefore, the effort of manually setting each reference point P one by one can be eliminated.

[0044] (3) The operator can visually determine whether the derived shortest distance dmin is within the reference range via the display unit 19. Therefore, it is easy to determine whether the shortest distance dmin between the surface to which the weatherstrip 60 is attached and the surface to which the weatherstrip 60 is in contact is within the reference range.

[0045] (4) The operator can visually grasp the shortest distance dmin, the reference range, the position information of the reference point P, and the drawing of the cross section C, along with the judgment result. Therefore, the operator can obtain specific suggestions for modifying the design of the body 40 and the opening / closing body 50 based on the various information displayed on the display unit 19.

[0046] <Variation> This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0047] In the above embodiment, the display unit 19 displays, for each of the multiple reference points P, the shortest distance dmin, the reference range, information regarding the position of the reference point P, and a drawing of the cross-section C, along with the judgment result. Alternatively, the display unit 19 may display only the judgment result for one reference point P.

[0048] The position of each of the multiple reference points P may be manually set by the operator through input operations using the input unit 18. • In the above embodiment, the weatherstrip 60 is shown attached to the outer peripheral edge 51 of the opening / closing body 50 as an example, but it is also possible to attach the weatherstrip 60 to the inner peripheral edge 42 of the opening 41 of the body 40.

[0049] The body 40 and the opening / closing mechanism 50 are not limited to side panels and sliding doors, but may also include, for example, a roof panel and an opening / closing mechanism for opening and closing the opening of the roof panel. [Explanation of symbols]

[0050] 10…Terminal device 11...Storage section 12... Mounting surface setting section 13...Measurement direction line setting section 14...Contact surface setting section 15...Shortest distance derivation part 16…Judgment section 18...Input section 19...Display section 40...Body 41…Opening 42...Inner periphery 50...Opening / closing mechanism 51…Outer edge 60... Weatherstrip 61…Mounting part 62...Abutting part F1…Mounting surface F2…Contact surface

Claims

1. A device for designing a mobile body comprising: a body having an opening; an opening / closing body for opening and closing the opening; and a weatherstrip having a mounting portion attached to either the inner periphery of the opening or the outer periphery of the opening / closing body, and a contact portion that can abut against the other, thereby sealing the space between the inner periphery and the outer periphery, wherein the device derives the shortest distance between the surface to which the mounting portion is attached and the surface to which the contact portion abuts, When the body and the opening / closing body to which the mounting portion is attached are designated as the mounting target, and the contact portion to which the contact portion contacts are designated as the contact target, and the weatherstrip is attached to the mounting target, and the opening / closing body is closing the opening, the line passing through the position on the mounting portion and extending along the extending direction of the weatherstrip is defined as the cross-sectional reference line, Based on the input operation, the section reference line and reference points on the section reference line are set, and the three-dimensional data of the weatherstrip, a drawing of a section passing through the reference points and perpendicular to the section reference line is created, the centroid of the weatherstrip is obtained on the section, and the mounting surface on the section to which the mounting part is attached is set as a line segment having a predetermined width based on the positional relationship between the reference points and the centroid, A measurement direction line setting unit that is located on the aforementioned cross-section and sets a measurement direction line perpendicular to the mounting surface, A contact surface setting unit extends the measurement direction lines from both ends of the mounting surface on the cross-section toward the center of gravity, and sets the lines of the parts that each of the measurement direction lines interferes with as the contact surface of the object to be contacted, The system includes a shortest distance deriving unit that derives the shortest distance as the minimum value between the ends of the mounting surface, which is the distance between the mounting surface and the contact surface in the direction along the measurement direction line. A system for deriving the distance between surfaces.

2. Based on an input operation that inputs the position of one of the aforementioned reference points and the interval between adjacent aforementioned reference points on the cross-sectional reference line, a plurality of aforementioned reference points are set at equal intervals on the cross-sectional reference line. The inter-plane distance derivation system according to claim 1.

3. A system for deriving the inter-plane distance according to claim 1 or claim 2, A determination unit that determines whether the shortest distance derived by the shortest distance derivation unit is within the reference range, The system includes a display unit that displays the determination result from the determination unit. A system for determining the distance between surfaces.

4. The display unit displays the shortest distance, the reference range, information regarding the position of the reference point, and a cross-sectional drawing, along with the determination result. The inter-plane distance determination system according to claim 3.

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