JP4464793B2 - Opening and closing structure of movable roof - Google Patents

Description

  The present invention relates to a movable roof opening and closing structure in a vehicle.

Some sports-type vehicles have a roof that can be opened and closed outside the vehicle in order to give the passengers a feeling of opening. Various techniques using a link mechanism have been proposed as a roof opening and closing mechanism (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2004-17864 ([0012] to [0020], FIGS. 3 and 5)

  Patent Document 1 describes a four-bar linkage mechanism as a roof opening and closing mechanism, and in paragraph [0017], by appropriately setting the length of a pair of link members and the attachment position of the link members to the roof, It describes that the roof functions as a spoiler. It is an object of the present invention to provide a movable roof opening / closing structure in which the degree of freedom with respect to the movement trajectory of the roof is widened and the opening / closing operation of the roof is smooth, such as allowing the roof to function as a spoiler. .

In order to solve the above-described problems, the present invention provides a movable roof opening / closing structure for rotating and opening a movable roof toward the rear outside the vehicle via a link mechanism including a first link bar and a second link bar. The link mechanism is composed of an unequal side four-joint link mechanism in which a node on the vehicle body side is a fixed node, the fixed node is positioned within the longitudinal length range of the movable roof in the fully closed position, and the fixed node Is set to be larger than the line segment length between the connecting shafts of the first link bar and the second link bar in the movable roof , and the movable roof is movable relative to the vehicle body when the movable roof is in the fully closed position. the instantaneous center is a rotational center of the roof, by Rukoto is located towards before the front end of the movable roof, front and rear end of the movable roof in the initial stage of opening the movable roof fully closed Both parts up Is displaced in the direction, in the final step of the movable roof in the open state to the fully closed to cause the front and rear ends of the movable roof together is displaced downward, and the movable roof rearwardly upwards in Hirakiji A movable roof opening and closing structure characterized by

  According to the opening and closing structure, the movable roof can be opened and closed so that its posture gradually changes. For example, when the movable roof is opened, the movable roof can be tilted rearward and function as a so-called roof spoiler. In the initial stage of opening the movable roof and the final stage of closing the movable roof, both the front end and the rear end of the movable roof can be displaced upward or downward, so the front end or rear end of the movable roof The movable roof can be opened and closed smoothly without excessive force.

  According to the present invention, when the movable roof is in the fully closed position, the movable roof is opened and closed so that the intersection angles of the nodes of the first link bar and the second link bar with respect to the fixed node are set to be the same. The structure.

  According to this structure, the unequal side four-bar linkage mechanism moves in the same manner as the parallel link mechanism in the initial stage of opening the movable roof and in the final stage of closing the movable roof, so that each of the front end portion and the rear end portion of the movable roof The displacement direction and each displacement amount coincide with each other. Therefore, almost no excessive force is applied to the front end and rear end of the movable roof, and the movable roof can be opened and closed more smoothly.

  According to the present invention, when opened, the movable roof can be tilted rearward to function as a so-called roof spoiler, and the movable roof can be opened and closed smoothly.

  FIG. 1 is a partial external perspective view of a vehicle provided with a movable roof, and FIG. 2 is a side explanatory view of a link mechanism serving as an opening / closing mechanism for the movable roof. In FIG. 1, an opening 4 is formed between the front fixed roof 2 and the rear fixed roof 3 above the passenger compartment, and the movable roof (hereinafter referred to as panel 1) closes the opening 4 when fully closed. When opening, the opening 4 is opened by rotating rearwardly outside the vehicle body via the link mechanism 5, and when fully opened, the front end is located around the rear edge of the opening 4, It will be in the state extended in the back side in the upper space of the fixed roof 3 or a rear glass. The link mechanisms 5 are provided around the left and right edges of the panel 1, respectively.

  On the front edge and the rear edge of the opening 4, accommodating portions 6 and 7 for accommodating a lock mechanism 15, which will be described in detail later, are respectively extended along the vehicle width direction, and the rear accommodating portion 7 is a link mechanism. 5 also serves as a housing portion for the periphery of the connecting shaft 5 (the connecting shafts 8 and 9 shown in FIG. 2) and its drive source, that is, the opening / closing drive source (not shown) of the panel 1.

  The schematic structure of the link mechanism 5 will be described with reference to FIG. 2. In the housing portion 7 indicated by the phantom line, connecting shafts 8 and 9 having the vehicle width direction as an axial direction are formed at appropriate intervals in the front-rear direction. Has been. The positions of the connecting shafts 8 and 9 are fixed with respect to the vehicle body. On the other hand, a bracket 10 is attached to the lower surface of the panel 1 in the middle in the front-rear direction, and the connecting shafts 11 and 12 having the vehicle width direction as an axial direction are formed at an appropriate interval in the front-rear direction. .

  Then, the connecting shaft 8 positioned forward in the connecting shafts 8 and 9 and the connecting shaft 11 positioned forward in the connecting shafts 11 and 12 are connected by the first link bar 13. And the connecting shaft 12 are connected to the first link bar 13 by a second link bar 14 disposed at a position shifted in the vehicle width direction. That is, the link mechanism 5 has a line segment between the connecting shafts 8 and 9, a first link bar 13, a line segment between the connecting shafts 11 and 12, and the second link bar 14 as a node, and the connection within them. A four-joint link mechanism in which the joint between the shafts 8 and 9 is a fixed joint is configured. In the present embodiment, the second link bar 14 is a so-called drive node, and the link mechanism 5 is operated to open and close the panel 1 by using the connecting shaft 9 as a drive shaft. Although not shown in the drawing, a cutout groove or the like for inserting the first link bar 13 and the second link bar 14 is formed on the surface of the accommodating portion 7.

  As shown by a solid line in FIG. 2, when the panel 1 is fully closed, the first link bar 13 and the second link bar 14 are slightly raised and are in a state of extending in the lateral direction. In this state, when the connecting shaft 9 rotates clockwise in FIG. 2 by a driving source (not shown) and the second link bar 14 rotates clockwise about the connecting shaft 9, the first link bar 13 serves as a follower. The panel 1 rotates about the connecting shaft 8 in the clockwise direction. As a result, the panel 1 rotates upward and rearward as indicated by the phantom line. 4 is located around the rear edge, and extends rearward in the space above the rear fixed roof 3 and the rear glass.

  If the above link mechanism 5 is a so-called parallel link mechanism, the panel 1 can be moved backward while maintaining a horizontal posture. Further, by setting the lengths of the respective nodes as appropriate and using the unequal side four-bar linkage mechanism as will be described in detail later, the panel 1 is lifted back when the panel 1 is opened as in the present embodiment. It can also be moved. As described above, when the panel 1 is opened, the panel 1 is configured to rise rearward, whereby the panel 1 can function as a roof spoiler.

  Next, as shown in FIG. 1, a lock mechanism 15 is provided in each of the accommodating portions 6 and 7. The locking mechanism 15 is for locking the closed position of the panel 1 when fully closed, and will be described below mainly with reference to FIGS. 3, 4, and 5 are an explanatory plan view of a cross section of the locking mechanism (viewed in the direction of arrow A in FIG. 1), an explanatory view of a side section (viewed in the direction of arrow B in FIG. 1), and an external perspective view.

  Reference numeral 16 denotes a drive motor serving as a drive source for the lock mechanism 15, and the rotary bracket 18 is driven by the drive force of the drive motor 16 with a constant stroke around the rotary shaft 19 whose axial direction is the vertical direction via the gear mechanism portion 17. It is configured to be able to reciprocate. In the rotary bracket 18, connecting shafts 20, 21 having the vertical direction as the axial direction are formed at positions that are opposed to each other by 180 degrees across the rotating shaft 19. The connecting shafts 20, 21 have rods 22, 23 respectively. One end side is rotatably attached.

  The rods 22 and 23 are extended substantially in the vehicle width direction so that the other end sides are separated from each other, and the other ends of the lock members 26 and 27 are connected via connecting shafts 24 and 25 whose axial direction is the vertical direction. It is attached to the base end portion in a rotatable manner. The lock members 26 and 27 are substantially columnar members, and the tip portions thereof are inclined like the tip portion of a shell, that is, the diameter is reduced toward the tip. Reference numerals 28 and 29 denote guide blocks fixed to the vehicle body, and guide holes 28a and 29a are formed with the vehicle width direction as the hole axis direction, respectively. The lock members 26 and 27 are supported by the guide blocks 28 and 29 so as to be linearly movable along the vehicle width direction by being fitted into the guide holes 28a and 29a, respectively. Reference numeral 30 denotes a bush attached to the guide holes 28a and 29a.

  As can be seen from the above description, the rods 22 and 23 function as connecting rods having the rotation shaft 19 as the center of rotation of the crank, and when the rotary bracket 18 rotates by a predetermined stroke, the rotational displacement amount of the rods 22 and 23 is reduced. To the linear displacement of the lock members 26 and 27. When the rotary bracket 18 rotates in one direction (for example, P direction in FIG. 5), the lock members 26 and 27 move linearly so as to be close to each other (Q direction and R direction in FIG. 5), and the other direction. In the case of rotation, the lock members 26 and 27 move linearly so as to be separated from each other.

  Each of the guide blocks 28 and 29 has first wall portions 28b and 29b and second wall portions 28c and 29c that rise from the bottom and are separated from each other in the vehicle width direction. An upper portion is opened between the second wall portion 28c and a groove portion 28d is formed along the front-rear direction of the vehicle. A similar portion is formed between the first wall portion 29b and the second wall portion 29c of the guide block 29. A groove 29d is formed. When the locking members 26 and 27 are spaced apart from each other, the locking members 26 and 27 pass through the respective grooves 28d and 29d, and the distal ends thereof protrude outward in the vehicle width direction from the second wall portions 28c and 29c positioned on the outside. In a state where they are closest to each other, their tip portions are positioned in the guide holes 28a and 29a of the first wall portions 28b and 29b without protruding into the respective groove portions 28d and 29d (in FIG. 3 and FIG. (The imaginary line shows the state in which the front end portion is located in the guide hole 28a of the first wall portion 28b).

  Then, as shown in FIG. 2, strikers 31 having lock holes 31a having the vehicle width direction as the hole axis direction are attached to the four corners of the lower surface of the panel 1, and the panel 1 is fully closed. In some cases, as shown in FIG. 4, the striker 31 is positioned in the groove 28 d (and 29 d shown in FIG. 5), the rotating bracket 18 is rotated by the drive motor 16, and the lock member 26 penetrates the lock hole 31 a of the striker 31. By doing so, the panel 1 is locked with respect to the vehicle body, and the fully closed state is maintained.

  In the present embodiment, when the panel 1 is fully opened, the lock members 26 and 27 (FIG. 5) of the lock mechanism 15 of the rear accommodating portion 7 shown in FIG. In this embodiment, the engagement is made with the 31. In other words, the single locking mechanism 15 is configured to serve as the locking function of the panel 1 when fully closed and when fully opened. Thereby, the economical lock mechanism 15 can be constructed without separately providing a lock mechanism dedicated for full opening.

  As described above, if the length of each node is appropriately set in the link mechanism 5 to form a so-called unequal side four-node link mechanism, the panel 1 is not moved in parallel, for example, the panel 1 opens. Therefore, it can be moved so as to gradually rise. According to this, as described above, the panel 1 can function as a roof spoiler, and the position of the instantaneous center of the panel 1 changes at any time during the opening and closing process. As a result, the design of the opening / closing operation of the panel 1 is improved.

In the present invention, the link mechanism 5 is composed of an unequal side four-bar linkage mechanism in which the vehicle body side node (the node between the connecting shafts 8 and 9) is a fixed node as described above, and the panel 1 is in the fully closed position. the instantaneous center of the panel 1 to the vehicle body when, as a main feature that was located towards before the front end of the panel 1.

Here, as shown in the figure, a weather strip 32 made of an elastic body such as a rubber material having a waterproof function is attached to the peripheral portion of the panel 1, and the weather strip 32 is elastically deformed when fully closed. Thus, the panel 1 is fitted into the opening 4 so as to be in close contact with the front fixed roof 2 and the rear fixed roof 3. Since this weather strip 32 is part of the components of the movable roof, the "forward than the front end portion of the panel 1 'is a Umono have towards earlier than the weather strip 32 of the front end of the panel 1 . Note that this is not the case when a member having a waterproof function is attached to the front fixed roof 2, the rear fixed roof 3, or the like.

  FIG. 6 is a schematic diagram showing the position of the instantaneous center X of the panel 1 with respect to the vehicle body when the panel 1 is in the fully closed state, and the position of the node of the first link bar 13 with respect to the fixed node between the connecting shafts 8 and 9. The intersection angle is indicated by α, and the intersection angle of the node of the second link bar 14 with respect to the fixed node is indicated by β. The intersection of the node line of the first link bar 13 (line connecting the connecting shaft 8 and the connecting shaft 11) and the node line of the second link bar 14 (line connecting the connecting shaft 9 and the connecting shaft 12) is This is the instantaneous center X of the panel 1 with respect to the vehicle body.

  FIG. 6A shows a case where the relationship α> β is set and the instantaneous center X is positioned in front of the front end portion of the panel 1. FIG. 6B shows a relationship α <β. The case where the instantaneous center X is located behind the rear end of the panel 1 is shown. Thus, if the instantaneous center X is positioned in front of the front end portion of the panel 1 or rearward of the rear end portion, the front end portion of the panel 1 and the panel 1 in the fully closed state are opened at the initial stage. Both the rear end portions can be displaced upward, and in the final stage of fully closing the panel 1 in the open state, both the front end portion and the rear end portion of the panel 1 can be displaced downward. .

  That is, when the instantaneous center X is within the range of the panel 1 in the vehicle longitudinal direction, the displacement direction of the front and rear ends of the panel 1 is reversed with respect to the vertical direction. The front end of 1 is displaced downward, while the rear end is displaced upward. In this case, an excessive force is easily applied to the front end portion (the weather strip 32) of the panel 1 that is in contact with the front fixed roof 2.

In contrast, in front of the front end portion of the panel 1 the instantaneous between the center X, or, caused to a position rearward of the rear end, in the final stage of closing the initial stage and the panel 1 to open the panel 1, panel 1 Both the front end portion and the rear end portion can be displaced upward or downward. Thereby, for example, in the case of an opening / closing structure in which the rear end portion is moved so as to rise rearward as the panel 1 is opened, at the initial stage of opening the panel 1 and at the final stage of closing the panel 1 The panel 1 can be smoothly opened and closed without applying an excessive force to the front end and the rear end of the panel 1.

FIG. 6C shows a case where the relationship of α = β is set and the relationship of distances between the nodes is L1> L3 and L4> L2 (L1: fixed node between the connecting shafts 8 and 9). L2, the distance of the node of the first link bar 13, L3: the distance of the node between the connecting shafts 11 and 12, L4: the distance of the node of the second link bar 14. In this case, since α = β, the intersection of the node line of the first link bar 13 and the node line of the second link bar 14, that is, the instantaneous center X does not exist in theory. However, in the present invention In this case, regarded as instantaneous center X even to that Sons forward infinity than the front end portion of the panel 1, the case of the alpha = beta, "instant center X panel 1 of the present invention than the front end portion intended to be encompassed in the configuration in position to location "forward.

  In the case of FIG. 6C, since α = β, in the initial stage of opening the panel 1 and the final stage of closing the panel 1, the same movement as that of the parallel link mechanism is performed. Each displacement direction and each displacement amount of the end portion coincide with each other. Thus, if α = β is set in the unequal side four-bar linkage mechanism, almost no excessive force is applied to the front and rear ends of the panel 1, so that the panel 1 can be opened and closed more smoothly. Can be made. The case of FIG. 6 (c) and the case of FIG. 6 (a) are particularly suitable for a configuration in which the panel 1 is raised rearward and functions as a roof spoiler when the panel 1 is opened.

The preferred embodiments of the present invention have been described above. As apparent from the above description, the present invention, as the instantaneous center X is position more forward than the front end portion of the panel 1, (including the case of alpha = beta) the smaller the difference between the alpha and beta set In view of the above, the layout, shape, number, and the like of each component are not limited to those described in the drawings.

It is a partial appearance perspective view of a vehicle provided with a movable roof. It is side surface explanatory drawing of the link mechanism used as the opening / closing mechanism of a movable roof. It is a plane cross-section explanatory drawing of a locking mechanism. It is side sectional explanatory drawing of a locking mechanism. It is an external appearance perspective view of a locking mechanism. It is a schematic diagram which shows the position of the instantaneous center of the movable roof with respect to a vehicle body when the movable roof is in a fully closed state.

Explanation of symbols

1 Panel (movable roof)
5 Link mechanism 13 First link bar 14 Second link bar X Instantaneous center α Intersection angle of first link bar node relative to fixed node β Intersection angle of second link bar node relative to fixed node

Claims (2)

A movable roof opening and closing structure that opens and closes the movable roof rearwardly outside the vehicle via a link mechanism including a first link bar and a second link bar,
The link mechanism is composed of an unequal side four-joint link mechanism with a node on the vehicle body side as a fixed joint,
The fixed node is positioned within the longitudinal range of the movable roof in the fully closed position, and the line segment length of the fixed node is between the connecting shafts of the first link bar and the second link bar in the movable roof. Set the line length longer than
The vehicle moment is the rotation center of the movable roof with respect to the center when the movable roof is in the fully closed position, the Rukoto is position more forward than the front end portion of the movable roof, movable roof fully closed In the initial stage of opening the movable roof, both the front end and the rear end of the movable roof are displaced upward, and in the final stage of fully closing the movable roof in the open state, the front end and the rear end of the movable roof are A movable roof opening and closing structure characterized in that both are displaced downward and the movable roof is raised rearward when opened.   2. The crossing angle of the node of the first link bar and the node of the second link bar with respect to the fixed node when the movable roof is in the fully closed position is set to be the same as each other. Opening and closing structure of the movable roof.

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