JP2007261405A - Link mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a link mechanism equipped with a locking function capable of establishing certain locking using a lesser number of component parts. <P>SOLUTION: The link mechanism is driven by a sector gear 13, which is driven by a motor 12 through a pinion 22. The sector gear 13 is fixed to a lever 14 as prime mover, which moves along with rotation of the sector gear 13. A see-saw member 25 is mounted on a lid bracket 31 using mounting bolt(s) 29. When the link mechanism drives a lid 6 from the open condition to the closed, the first arm 40 of the see-saw member 25 comes in contact with a lifting part 49 of the lever 14 to be lifted, while the second arm 50 on the opposite side comes in contact with a lock pin 30 installed on a follower lever 15 and gives a pressure downward. This causes the lock 6 to be locked. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a link mechanism.

  Conventionally, various studies have been made on vehicles having a retractable roof whose front roof and back roof are movable. Such a vehicle is stored in a storage space at the rear of the vehicle with the two roofs folded when the front roof covering the upper part of the passenger compartment and the back roof covering the rear of the passenger compartment are open. Is done. On the other hand, when the outside air temperature is low or raining, the two roofs are closed to cover the entire upper part of the vehicle compartment, and the vehicle compartment is sealed.

  Such a retractable roof opening / closing mechanism is disclosed in, for example, Patent Documents 1 and 2, and a four-bar linkage mechanism is generally used. Further, the lid of the roof storage space is opened and closed by an opening / closing mechanism provided separately. In the retractable roof, it is important that the retractable roof is locked in the fully closed state to reliably keep the closed state.

Patent Document 2 discloses a roof lock mechanism. The roof lock device includes a roof overload detection means for detecting an overload of the roof drive mechanism, a lock overload detection means for detecting an overload of the lock drive mechanism, and a control means. This is to prevent the idling motion.
JP-A-8-244465 JP 2001-241242 A

  However, the roof lock mechanism disclosed in Patent Document 2 has a roof lock drive mechanism, a lock drive mechanism, various detection means, and the like so as to pursue the certainty of the lock. Generally, in a retractable roof, the location where the mechanism for driving / locking the roof and the lid of the storage space is installed is limited in both the arrangement and the capacity, so a small number of parts is required as much as possible. However, the roof lock mechanism according to Patent Document 2 has a problem that the number of parts is very large and the operation thereof is complicated.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a link mechanism having a lock function that can be reliably locked with a small number of parts.

  In order to solve the above-described problems, a first link mechanism of the present invention includes a base, a driving lever and a driven lever whose one ends are pivotally connected to different positions of the base, the driving lever, A connecting member pivotally connected to the other end of the driven lever, and the connecting member includes a pivotally connected portion of the driving lever and a pivotally connected portion of the driven lever. And a seesaw member having first and second arms extending from the pivotally connected portion. The driving lever includes a portion pivotally connected to the base. The rotary lever is driven to rotate as a pivot, and contacts the first arm of the seesaw member at a predetermined position X in the rotationally driven region, and the driven lever pivotally connects a portion pivotally connected to the base. And at the predetermined position Y in the swinging area, it contacts the second arm of the seesaw member, and the driving lever is moved through the seesaw member at the predetermined position X. A pressure is applied to the driven lever at the predetermined position Y.

  The second link mechanism of the present invention includes a base, a driving lever and a driven lever, one end of which is pivotally connected to different positions of the base, and the other end of the driving lever and the driven lever. A connecting member pivotally connected to the connecting member. The connecting member is pivotally connected between the pivotally connected portion of the driving lever and the pivotally connected portion of the driven lever and pivotally connected to the connecting member. A seesaw member having first and second arms extending from a portion that is connected to the support, and a contact portion that comes into contact with the second arm of the seesaw member; And a portion pivotally connected to the first arm of the seesaw member at a predetermined position X in the rotationally driven region. The driven lever is pivoted to the base. Branch Is swung to sintered portions as pivot, the driving lever in the predetermined position X, and a structure for applying pressure to the contact portion through the seesaw member.

  With the above configuration, the lock mechanism is configured by the seesaw member and the contact portion, and the lock is reliably achieved when the link mechanism moves to a predetermined position.

  It is preferable that the predetermined position X is any one end portion of the region where the driving lever is rotationally driven.

  It is preferable that the connecting member is attached to a panel member that covers a part of the room space provided in the vehicle, and the panel member opens and closes the room space by rotation of the driving lever.

  The predetermined position X is a position of the driving lever when the panel member is in the closed state of the chamber space, and the driving lever is in a direction in which the panel member holds the closed state of the chamber space. It is preferable to apply pressure to the driven lever or the contact portion.

  In the link mechanism according to the present invention, the lock mechanism is configured by the seesaw member and the contact portion, and is configured to work in accordance with the movement of the link mechanism as a part of the link mechanism. Locking is ensured with little space required.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following drawings, components having substantially the same function are denoted by the same reference numerals for the sake of brevity.

(Embodiment 1)
FIGS. 1 and 2 are schematic side views showing a traveling vehicle (passenger automobile) 1 having a retractable roof 5.

  The retractable roof 5 includes a front roof 2 serving as a ceiling of the crew room, a back roof 3 on the rear side of the crew room, and a rear window 4. In the fully opened state shown in FIG. 4 is folded and stored in a storage space (room space) 7. In FIG. 1, a state in which the retractable roof 5 is fully closed is indicated by a solid line, and a half-open (half-closed) state is indicated by a one-dot chain line. When the retractable roof 5 is fully opened and fully closed, the storage space 7 is shielded by a lid (panel member) 6. The retractable roof 5 and the lid 6 are opened and closed by a link mechanism. However, if the link mechanism is drawn in the drawing, the drawing becomes complicated and difficult to see, so the link mechanism is not shown in FIGS.

  3 and 4 are views showing a link mechanism for opening and closing the lid 6. FIG. 3 is a schematic side view showing a state where the lid 6 is closed, and FIG. 4 is a schematic side view showing a state where the lid 6 is half open (semi-closed). In these drawings, the lid 6 is indicated by a one-dot chain line for easy understanding of the link mechanism.

  This link mechanism is a mechanism that opens and closes the lid 6 using the motor 12 as a drive source. Both ends of the main bracket 21 that is a base, the lid bracket 31 fixed to the lid 6, the main bracket 21 and the lid bracket 31 are pivoted. A driving lever 14 that is connected to support the link mechanism and a driven lever 15 that is pivotally connected to both ends of the main bracket 21 and the lid bracket 31 to restrict the opening / closing range and opening / closing movement of the lid 6. Yes. Here, the lid bracket 31 is a connecting member. The main bracket 21 is fixed to the vehicle body by being fixed to the bottom surface of the storage space 7.

  Next, the structure of this link mechanism will be described with reference to FIG. 5 showing the component configuration of this embodiment. 3 and 4 are views seen from the direction of the arrow in FIG.

  In this link mechanism, the driving lever 14 is driven by the sector gear 13. The sector gear 13 is driven by the motor 12 via a pinion 22 (hidden behind the motor 12 in FIG. 5). The motor 12 is fixed to the main bracket 21. The driving lever 14 is pivotally connected to the lid bracket 31 by a pivot bolt 59. The driving lever 14 is configured by connecting a first lever member 17 and a second lever member 16 with two bolts 24 and 24. When the motor 12 stops due to a failure, the bolts 24, 24 are removed to release the connection between the first lever member 17 and the second lever member 16, and the motor shaft and the link mechanism are cut off.

  The sector gear 13 is rotatably attached to the main bracket 21 by a sector gear attachment bolt 41 and is further fixed to the driving lever 14 by bolts 28 and 28. Accordingly, as the sector gear 13 rotates, the driving lever 14 moves together with the sector gear 13. Since the driving lever 14 is also pivotally connected to the main bracket 21 by the sector gear mounting bolt 41, the driving lever 14 is rotationally driven about the sector gear mounting bolt 41 as a pivot.

  One end of the driven lever 15 is pivotally connected to the main bracket 21 by a pivot bolt 57, and the other end is pivotally connected to the lid bracket 31 by a pivot bolt 58. A lock pin 30 is installed in the vicinity of the portion that is connected to the support. Then, the driven lever 15 is swung with the portion pivotally connected to the main bracket 21 (the pivot bolt 57) as a pivot.

  A seesaw member 25 is rotatably attached to the lid bracket 31 by a mounting bolt 29. Since the seesaw member locks and holds the state of the link mechanism that closes the lid 6, this lock mechanism will be described below.

  The seesaw member 25 includes a first arm 40 that extends from the position of the mounting bolt 29 toward the driving lever 14 and a second arm 50 that extends from the position of the mounting bolt 29 toward the driven lever 15. As shown in FIG. 4, when the lid 6 is half open and half closed, both arms 40 and 50 of the seesaw member 25 do not touch any part of the link mechanism and have no function. Here, when the link mechanism is operated and the lid 6 is fully closed, the lifting portion 49 of the driving lever 14 approaches the first arm 40 of the seesaw member 25 and the lid 6 is fully closed. The first arm 40 comes into contact with the lifting portion 49 of the driving lever 14 and is pushed up. On the other hand, when the lid 6 is fully closed, the second arm 50 abuts against the lock pin 30 installed on the driven lever 15 to push down the lock pin 30 and is pivotally connected by the driven lever 15. The part of the bracket 31 is locked so as to keep the closed state. That is, when the lid 6 is in the fully closed state, the driving lever 14 applies pressure downward to the driven lever 15 via the seesaw member 25 to lock. The position of the driving lever 14 when the lid 6 is fully closed is the predetermined position X, and the position of the driven lever 15 is the predetermined position Y.

  In this embodiment, the lid 6 can be reliably locked only by adding the seesaw member 25, the lifting portion 49, and the lock pin 30 to the link mechanism. Since the driving lever 14 is fixed to the sector gear 13, the movement of the lid is locked by stopping the motor 12. On the other hand, on the side of the lid bracket 31 on which the driven lever 15 is attached, the lid 6 may be lifted by wind or the like without this locking mechanism, but this possibility is eliminated by this locking mechanism. The conventional lock mechanism is equipped with a sensor for detecting full closure, a lock mechanism, a drive mechanism for driving the lock mechanism, etc., so the number of parts is enormous, the cost is increased, and the weight of the parts to be operated is large. Although a large driving force is required and the installation layout has become very difficult, in this embodiment, it is possible to reliably perform the locking when fully closed with only a few members. Further, it is not necessary to separately prepare a drive mechanism / drive source for driving the lock mechanism.

(Embodiment 2)
As shown in FIG. 6, in the link mechanism according to the second embodiment, a contact portion 39 is installed on the lid bracket 31 instead of the lock pin 30 of the link mechanism of the first embodiment, and the seesaw is matched with the installation position of the contact portion 39. Since the second embodiment is the same as the first embodiment except for the portion where the shape of the second arm 50 'of the member 25' is changed, only the portions different from the first embodiment will be described.

  In the present embodiment, the contact portion 39 is installed on the lid bracket 31, and when the lid 6 is closed, the second arm 50 ′ of the seesaw member 25 ′ comes into contact with the contact portion 39 and the contact portion 39 is moved. Press down. That is, when the lid 6 is in the closed state, the driving lever 14 applies pressure so as to push down the contact portion 39 via the seesaw member 25 ′ to lock the lid bracket 31 and the lid 6. The effect exhibited by the present embodiment is the same as the effect exhibited by the first embodiment.

(Other embodiments)
Embodiments 1 and 2 described so far are examples of the present invention, and the present invention is not limited to these examples. For example, the link mechanism according to the above-described embodiment is a link mechanism that opens and closes the lid 6 of the storage space 7 of the vehicle. However, this structure may be used for the open / close link mechanism of the retractable roof, or for a link mechanism other than the vehicle. This configuration may be used.

  In the above embodiment, the lock mechanism is used in the fully closed state of the lid 6, but it may be a fully open state lock mechanism.

  Instead of the lock pin 30, a part of the driven lever 15 may be used as it is. Instead of the lock pin 39, a part of the lid bracket 31 may be used as it is. Further, the seesaw members 25, 25 'may have any shape or installation position as long as it can be locked.

  The drive of the link mechanism is not limited to that by a motor. It may be a hydraulic cylinder.

  As described above, since the link mechanism according to the present invention can be reliably locked with a simple structure, it is useful as a link mechanism for vehicles.

It is a typical side view which shows the rear part of the traveling vehicle provided with the retractable roof. It is another typical side view which shows the rear part of the traveling vehicle provided with the retractable roof. It is a typical side view in the state where the lid of the link mechanism concerning Embodiment 1 is closed. FIG. 3 is a schematic side view of the link mechanism according to the first embodiment when the lid is in a half-open state. It is the figure which decomposed | disassembled and showed the link mechanism which concerns on Embodiment 1 to a component. It is a typical side view in the state where the lid of the link mechanism concerning Embodiment 2 is closed.

Explanation of symbols

6 Lid 12 Motor 13 Sector gear 14 Drive lever 15 Drive lever 18 Auxiliary lever 21 Main bracket 22 Pinion 25, 25 'Seesaw member 29 Mounting bolt 30 Lock pin 31 Lid bracket 39 Contact portion 40 First arm 49 Lifting portion 50, 50 'Second arm

Claims (5)

Base and
A driving lever and a driven lever, one end of which is pivotally connected to a different position of the base;
A connecting member pivotally connected to the other end of each of the driving lever and the driven lever; and
The connecting member is pivotally connected between the pivotally connected portion of the driving lever and the pivotally connected portion of the driven lever, and the first and first portions from the pivotally connected portion. There is a seesaw member with two arms extended,
The driving lever is rotationally driven with a portion pivotally connected to the base as a pivot, and contacts the first arm of the seesaw member at a predetermined position X in the rotationally driven region.
The follower lever is swung about a portion pivotally connected to the base as a pivot, and contacts the second arm of the seesaw member at a predetermined position Y within the swung region,
The driving lever applies a pressure to the driven lever at the predetermined position Y through the seesaw member at the predetermined position X. Base and
A driving lever and a driven lever, one end of which is pivotally connected to a different position of the base;
A connecting member pivotally connected to the other end of each of the driving lever and the driven lever; and
The connecting member is pivotally connected between the pivotally connected portion of the driving lever and the pivotally connected portion of the driven lever, and the first and first portions from the pivotally connected portion. A seesaw member with two arms extending, and a contact portion that comes into contact with the second arm of the seesaw member,
The driving lever is rotationally driven with a portion pivotally connected to the base as a pivot, and contacts the first arm of the seesaw member at a predetermined position X in the rotationally driven region.
The follower lever is swung about a portion pivotally connected to the base as a pivot,
A link mechanism in which the driving lever applies pressure to the contact portion through the seesaw member at the predetermined position X.   3. The link mechanism according to claim 1, wherein the predetermined position X is one end of the region where the driving lever is rotationally driven. The connecting member is attached to a panel member that covers a part of a room space provided in the vehicle,
The link mechanism according to any one of claims 1 to 3, wherein the panel member opens and closes the chamber space by rotation of the driving lever. The predetermined position X is a position of the driving lever when the panel member is closing the chamber space,
The link mechanism according to claim 4, wherein the driving lever applies pressure to the driven lever or the contact portion in a direction in which the panel member maintains the closed state of the chamber space.

Images