JP2010241155A - Wing-type roof opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wing-type roof opening/closing device capable of independently setting a center-fold attitude of a wing. <P>SOLUTION: A wing-type roof includes a main wing part 20 of an L-shaped section having a ceiling surface body 22 and a sidewall upper part 23, and a wing 5 having a sidewall lower part 21 connected to the sidewall upper part 23 in an inwardly center-foldable manner. The ceiling surface body 22 is turnably connected to a beam 4 stretched between upper frames 15 of front and rear frame members 12 of a luggage compartment, and the wing 5 is opened/closed and moved according to the turning movement of the main wing part 20. The opening/closing device includes a first driving mechanism 30 and a second driving mechanism 40. The first driving mechanism 30 turns the main wing part 20 to open/close and move the wing 5. The second driving mechanism 40 turns the sidewall lower part 21 to make the wing 5 to be center-folded. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a wing-type roof opening / closing device provided in a luggage compartment of a vehicle.

  A wing with an L-shaped cross section that integrally has a ceiling plane body and a side wall portion is rotatably supported by a beam material laid between the front frame and the rear frame of the box-type luggage compartment, and the ceiling plane body is rotated upward. In the wing-type roof that opens and closes the luggage compartment, a structure in which the side wall portion of the wing is divided into upper and lower parts and the lower side wall lower part is connected to the upper side wall upper part so as to be able to be folded is known.

JP 2000-198358 A

  In the above configuration, when the upper part of the side wall of the wing rotates and moves upward together with the ceiling surface body, the lower part of the side wall is tilted with respect to the upper part of the side wall by its own weight and is in a bent state. In other words, the bent wing posture is uniquely determined according to the opening / closing position of the wing.

  For this reason, it is not possible to set the wing to a suitable folded posture in accordance with the cargo handling mode, and there is a possibility that the cargo handling operation and the cargo handling location are limited.

  In addition, since the movement path of the lower end of the side wall lower part is uniquely determined, the length of the ceiling face body, the upper part of the side wall and the lower part of the side wall (so that the lower end of the lower part of the side wall does not interfere with the front frame and the rear frame of the cargo compartment when opening and closing the wing The width of the ceiling surface body and the height of the upper part of the side wall and the lower part of the side wall must be set, and the shape of the wing is restricted.

  Then, an object of this invention is to provide the opening / closing apparatus of the wing-type roof which can set the bending attitude | position of a wing independently.

  In order to achieve the above object, a wing-type roof to which the switchgear of the present invention is applied has a main wing portion having an L-shaped cross section having a ceiling surface body and an upper side wall, and can be folded inward with respect to the upper side wall. And a wing having a connected side wall lower portion. The ceiling surface body of the main wing portion is rotatably connected to a beam member laid between the upper frames of the frame members before and after the box-type luggage compartment of the vehicle, and the wing is opened and closed by the rotational movement of the main wing portion.

  The opening / closing device includes a first drive mechanism and a second drive mechanism. The first drive mechanism rotationally drives the main wing part to open and close the wing. The second drive mechanism rotationally drives the lower portion of the side wall to break the wing.

  In the above configuration, since the first drive mechanism sets the open / close state of the wing and the second drive mechanism sets the wing's folded position, the wing is set to a suitable folded position that matches the cargo handling work and place. Thus, cargo handling work can be performed.

  Moreover, since the freedom degree in design of a wing shape increases, it can respond flexibly to the various request | requirements with respect to a bending posture.

  Further, the second drive mechanism may be provided between the front end portion of the main wing portion and the front end portion of the side wall lower portion and between the rear end portion of the main wing portion and the rear end portion of the side wall lower portion.

  In the above configuration, since the lower portion of the side wall is rotationally driven on both the front and rear sides of the cargo compartment, the rotational movement of the lower portion of the side wall when setting the folded posture can be stabilized.

  Further, the first drive mechanism is provided between the upper frame of the front frame member and the front end portion of the main wing portion, and between the upper frame of the rear frame member and the rear end portion of the main wing portion, respectively. Also good. The front edge and the rear edge of the ceiling face body are formed by the front and rear ceiling frame horizontal frames, the front edge and the rear edge of the upper part of the side wall are formed by the front and rear side wall upper vertical frames, and the front edge of the lower part of the side wall. When the rear end edge is formed by the front and rear side wall lower vertical frames, the first drive mechanism includes a first bracket fixed to the upper frame of the frame member and a second bracket fixed to the ceiling surface body horizontal frame. And a first cylinder in which one and the other of the fixed end and the moving end are rotatably coupled to the first bracket and the second bracket, respectively. The second drive mechanism includes a third bracket that is fixed to the ceiling plane lateral frame outside the second bracket in the vehicle width direction, a first link arm that is rotatably connected to the third bracket, and a fixed end. And a second cylinder in which one and the other of the moving ends are rotatably connected to the second bracket and the first link arm, respectively, and one end portion rotatably supported with respect to the lower end portion of the side wall upper vertical frame. A second link arm, a third link arm having one end rotatably supported with respect to the upper end of the lower vertical frame on the side wall, and one end and second link rotatably connected to the first link arm. A fourth link arm rotatably connected to the other end of the arm and the other end of the third link arm.

  In the above configuration, the first drive mechanism and the second drive mechanism are arranged on the upper frame of the front and rear frame members, the ceiling frame horizontal frame, the side wall upper vertical frame, and the side wall lower vertical frame. It is possible to minimize the load space being narrowed by the drive mechanism.

  The opening / closing device may include a control unit and a first detection unit. The control means controls the rotation drive of the main wing portion by the first drive mechanism and the rotation drive of the lower side wall by the second drive mechanism. The first detection means detects whether or not the main wing portion exists in a first rotation range in which the lower portion of the side wall may interfere with the frame member when the wing is bent.

  The control means prohibits rotation of the lower side wall by the second drive mechanism when the first detection means detects that the main wing portion is in the first rotation range.

  In the above configuration, in order to rotationally drive the lower portion of the side wall by the second drive mechanism, the main wing portion exists in the first rotation range in which the lower portion of the side wall may interfere with the frame member when the wing is bent. Therefore, it is possible to reliably prevent the interference between the lower portion of the side wall and the frame member due to the middle folding of the wing.

  The opening / closing device may include second detection means and third detection means. The second detection means detects whether or not the wing is broken. The third detection means detects whether or not the inclination angle of the lower portion of the side wall with respect to the upper portion of the side wall is equal to or smaller than a predetermined angle that allows the wing to be closed. When the second detecting means detects that the wing is bent halfway and the third detecting means detects that the inclination angle of the side wall lower part with respect to the upper side wall exceeds a predetermined angle, Rotation driving in the closing direction of the main wing portion by the first drive mechanism is prohibited.

  In the above configuration, in order to move the wing closed by the first drive mechanism, the wing is not bent, or the inclination angle of the lower side wall with respect to the upper side wall is equal to or smaller than a predetermined angle that allows the wing to close. Therefore, it is possible to reliably prevent unscheduled interference between the lower portion of the side wall and the frame member due to the closing movement of the wing.

  The opening / closing device may include fourth detection means for detecting whether or not the lower portion of the side wall has reached a limit position close to or in contact with the frame member when the wing in a predetermined bent position is closed. The control means prohibits the first drive mechanism from rotating in the closing direction of the main wing when the fourth detecting means detects that the lower side wall has reached the limit position.

  In the above configuration, when the lower portion of the side wall reaches the limit position, the closing movement of the wing by the first drive mechanism stops, so that it is possible to reliably prevent unscheduled interference between the lower side wall and the frame member. In addition, it is possible to reliably prevent an excessive burden on the first drive mechanism.

  According to the present invention, it is possible to independently set the bent posture of the wing.

It is an external appearance perspective view which shows the fully closed state of the luggage compartment which has a wing type roof of this embodiment. It is an external appearance perspective view which shows the open state of the cargo compartment of FIG. It is an external appearance perspective view which shows the fully open state of the cargo compartment of FIG. It is the rear view which looked at the frame member of the rear side of the luggage compartment of FIG. 1 from back. It is a principal part enlarged view of FIG. It is a schematic diagram which shows the power unit of this embodiment. It is a block diagram for demonstrating control of this embodiment. FIG. 2 is a rear view when the wing is opened from the state of FIG. 1. It is the external appearance perspective view which looked at the wing set to the bending posture in the open position of FIG. 8 from diagonally downward of the frame member of the rear side. FIG. 2 is a rear view when the wing is opened from the state of FIG. 1 and set to a completely folded posture. It is a principal part enlarged view of the state of FIG. FIG. 11 is a rear view when the wing is moved from the state of FIG. 10 to the fully open state. It is the external appearance perspective view which looked at the wing of FIG. 12 from diagonally downward of the frame member of the rear side. FIG. 11 is a rear view when the wing is closed from the state of FIG. 10. FIG. 15 is a rear view when the wing is closed from the state of FIG. 14 to a limit position. It is a schematic diagram which shows the typical aspect of the opening / closing state of a wing, and a middle bending attitude | position.

  An embodiment of the present invention will be described with reference to the drawings. In the following description, the left-right direction means the left-right direction when facing the front of the vehicle, and the vehicle width direction means the vehicle width direction when the wing is fully closed.

  As shown in FIGS. 1 to 3, the luggage compartment 1 is a box-type luggage compartment having a wing-type roof, and is mounted or connected behind a cab (not shown) of a vehicle (truck).

  The luggage compartment 1 includes a floor plate member 10, front and rear frame members 11 and 12, a beam member 4, a front panel member 14, an opening / closing door (not shown), left and right wings 5 and 6, and left and right tilts 13.

  The upper surface of the floor board member 10 forms a floor surface on which loads are loaded. The frame members 11 and 12 are erected in front of and behind the cargo compartment 1, respectively. A front panel member 14 that closes the front of the cargo compartment 1 is fixed to the front frame member 11, and an open / close door (not shown) that opens and closes the rear of the cargo compartment 1 is rotatable on the rear frame member 12. It is connected to. The tilt 13 is rotatably connected to both ends of the floor board member 10 in the vehicle width direction, and opens and closes the lower side portion of the luggage compartment 1. The standing-up cage 13 is supported by the front and rear frame members 11 and 12 and defines the lower part of the inner side surface of the luggage compartment 1.

  The front and rear frame members 11 and 12 each have an upper frame 15 on the ceiling side, and the beam 4 is installed between the front and rear upper frames 15. In addition, although the beam material 4 of this embodiment is arrange | positioned by deviating to the right side rather than the vehicle width direction center, the position of the beam material 4 is not limited to this.

  The left wing 5 has a main wing portion 20 and a side wall lower portion 21. The main wing portion 20 is a L-shaped structure having a ceiling surface body 22 and a side wall upper portion 23. The upper end portion of the side wall lower portion 21 is rotatably connected to the lower end portion of the side wall upper portion 23 via a hinge 24 (shown in FIG. 5). The hinge 24 allows rotation of the lower end of the side wall lower portion 21 toward the cargo compartment 1 (inward folding), and prevents outward rotation (outward folding). In the fully closed state (shown in FIG. 1), the front and rear edge portions of the wing 5 face the outer surfaces (upper surface and side surfaces) of the front and rear frame members 11 and 12. The fully closed ceiling body 22 is the left side of the ceiling of the cargo compartment 1, the side wall upper part 23 is the upper part of the left inner side surface, and the side wall lower part 21 is the middle part of the left inner side surface (the region from the upper side wall to the tilt 13) Separate each.

  The right wing 6 has an L-shaped cross section having a ceiling surface body 25 and a side wall portion 26. In the fully closed state (shown in FIG. 1), the ceiling surface body 25 defines the right side portion of the ceiling of the luggage compartment 1, and the side wall portion 26 defines the upper portion and the middle portion (upper region of the cage 13) of the right inner surface. In this embodiment, the side wall lower portion 21 is provided only on the left wing 5. However, the side wall portion 26 of the right wing 6 may be divided into an upper side wall and a lower side wall in the same manner as the left wing 5. Good.

  Inner edge portions in the vehicle width direction of the left and right ceiling surface bodies 22 and 25 are connected to the beam member 4 via hinges (not shown), respectively, so that the ceiling surface bodies 22 and 25 (main wing portions 20) rotate. The wings 5 and 6 are opened and closed by the movement.

  Next, with reference to FIGS. 4-16, the 1st drive mechanism 30 and the 2nd drive mechanism 40 with which the opening / closing apparatus of this embodiment is provided are demonstrated. The first drive mechanism 30 rotationally drives the main wing portion 20 to open and close the left wing 5. The second drive mechanism 40 rotates the side wall lower portion 21 to cause the left wing 5 to be bent. Note that the drive mechanism of the right wing 6 has the same configuration as the first drive mechanism 30 of the left wing 5, and therefore the description thereof is omitted.

  As shown in FIG. 4, the first drive mechanism 30 is provided between the upper frame 15 of the front frame member 11 and the front end portion of the main wing portion 20, and between the upper frame 15 and the main wing portion of the rear frame member 12. 20 are provided between the rear end of each of the two. The second drive mechanism 40 is provided between the front end portion of the main wing portion 20 and the front end portion of the side wall lower portion 21, and between the rear end portion of the main wing portion 20 and the rear end portion of the side wall lower portion 21. Yes.

  The ceiling face body 22 has a ceiling face body horizontal frame 27, the side wall upper part 23 has a side wall upper vertical frame 28, and the side wall lower part 21 has a side wall lower vertical frame 29 in the front and rear. The front and rear ceiling frame horizontal frames 27 form the front edge and the rear edge of the ceiling surface body 22, and the front and rear side wall upper vertical frames 28 form the front edge and the rear edge of the side wall upper portion 23. Reference numeral 29 denotes a front edge and a rear edge of the side wall lower portion 21.

  The first drive mechanism 30 includes a first bracket 31, a second bracket 32, and a first cylinder 33.

  The first bracket 31 is fixed to the upper surface of the upper frame 15, and the second bracket 32 is fixed to the lower surface of the ceiling surface horizontal frame 27. In the fully closed state, the first bracket 31 is disposed on the right side of the second bracket 32. The first cylinder 33 is a hydraulic cylinder having a cylinder rod 34 that can be extended and shortened from one end of the cylinder body 35. The other end (fixed end) of the cylinder body 35 is rotatably connected to the first bracket 31, and the tip (moving end) of the cylinder rod 34 is rotatably connected to the second bracket 32.

  In the fully closed state of the wing 5, the cylinder rod 34 is most shortened. When the cylinder rod 34 is extended in the fully closed state, the first cylinder 33 rotates and rises around the fixed end side, and the main wing portion 20 rotates and moves away from the upper frame 15, as shown in FIG. The wing 5 moves to open. When the cylinder rod 34 is shortened from this state, the first cylinder 33 rotates around the fixed end side and descends, the main wing portion 20 rotates in a direction approaching the upper frame 15, and the wing 5 moves closed.

  The second drive mechanism 40 includes the second bracket 32, the third bracket 41, the first link arm 42, the second cylinder 43, the second link arm 45, the third link arm 46, and the fourth link arm 44.

  The third bracket 41 is fixed to the lower surface of the ceiling surface horizontal frame 27 on the outer side in the vehicle width direction than the second bracket 32. The first link arm 42 is rotatably connected to the third bracket 41. The second cylinder 43 is a hydraulic cylinder having a cylinder rod 47 that can be extended and shortened from one end of the cylinder body 48. The other end (fixed end) of the cylinder body 48 is rotatably connected to the second bracket 32, and the tip end (moving end) of the cylinder rod 47 is rotatably connected to the first link arm 42. One end of the second link arm 45 is rotatably connected to the inner surface of the lower end of the side wall upper vertical frame 28. One end of the third link arm 46 is rotatably connected to the inner surface of the upper end of the side wall lower vertical frame 29. One end of the fourth link arm 44 is rotatably connected to the first link arm 42, and the other end is rotatably connected to the other end of the second link arm 45 and the other end of the third link arm 46. It is connected.

  As shown in FIG. 5, the cylinder rod 47 extends most when the side wall lower portion 21 extends linearly from the side wall upper portion 23 without causing the wing 5 to be bent halfway (normal posture). In the normal posture, the connecting shaft 53 between the moving end of the cylinder rod 47 and the first link arm 42 is located closer to the ceiling surface body 22 than the connecting shaft 54 between the third bracket 41 and the first link arm 42. The connecting shaft 49 between the first link arm 42 and one end of the fourth link arm 44 is positioned on the side wall upper portion 23 side with respect to the connecting shafts 53 and 54, and further away from the ceiling surface body 22 than the connecting shaft 54. The connecting shaft 50 between the other end of the fourth link arm 44, the other end of the second link arm 45, and the other end of the third link arm 46 is connected to one end of the second link arm 45 with respect to the upper side wall 23. It is located between the shaft 51 and the connecting shaft 52 at one end of the third link arm 46 with respect to the side wall lower portion 21 and further away from the side wall upper portion 23 and the side wall lower portion 21 than the connecting shafts 51, 52.

  When the cylinder rod 47 is shortened from the normal posture, as shown in FIG. 11, the connecting shaft 53 moves in a direction away from the side wall upper portion 23, the first link arm 42 rotates about the connecting shaft 54, and the connecting shaft 49 ( The fourth link arm 44 and the connecting shaft 50) move in a direction approaching the ceiling surface body 22, and the third link arm 46 (the connecting shaft 52) moves in a direction approaching the second link arm 45 (the connecting shaft 51). The side wall lower portion 21 rotates in a direction approaching the main wing portion 5 and the wing 5 is bent halfway. When the cylinder rod 47 extends from this state, the connecting shaft 53 moves in a direction approaching the upper side wall 23, the first link arm 42 rotates about the connecting shaft 54, and the connecting shaft 49 (fourth link arm 44, connecting The shaft 50) moves in a direction away from the ceiling surface body 22, the third link arm 46 (connection shaft 52) moves in a direction away from the second link arm 45 (connection shaft 51), and the side wall lower portion 21 becomes the main wing portion. Rotate in a direction away from 5, and the wing 5 returns to the normal posture.

  In addition, the opening / closing device of the present embodiment includes a power unit 60 (shown in FIG. 6) that supplies hydraulic pressure to the first cylinder 33 and the second cylinder 43 to expand and contract the cylinder rods 34 and 47, and a control device as control means. 70 (shown in FIG. 7).

  The power unit 60 supplies the hydraulic pressure from the hydraulic pump 61 to the first cylinder 33 and the second cylinder 43 via the control valves V1, V2 and the check valve 62. The control valve V1 supplies hydraulic pressure to the extension side of the first cylinder 33 when receiving an opening movement signal, which will be described later, and supplies hydraulic pressure to the shortening side of the first cylinder 33 when receiving a closing movement signal. The hydraulic pressure supply path from the pump 61 is switched. The control valve V2 supplies hydraulic pressure to the shortening side of the second cylinder 43 when receiving a middle-folding expansion signal, which will be described later, and supplies hydraulic pressure to the extending side of the second cylinder 43 when receiving the middle-folding reduction signal. The hydraulic pressure supply path from the hydraulic pump 61 is switched.

  The control device 70 has an instruction signal from an operation switch SW1 for an operator to input an instruction to drive the first drive mechanism 30, and an operation switch SW2 for an operator to input an instruction to drive the second drive mechanism 40. And a detection signal from contact-type limit switches LS1 to LS4, which will be described later, are input.

  Each operation switch SW1, SW2 has an ON button and an OFF button, respectively, and is provided in a place with good operability outside the cargo compartment 1. The switch SW1 outputs an opening operation signal to the control device 70 when the ON button is pressed, and outputs a closing operation signal to the control device 70 when the OFF button is pressed. The operation switch SW2 outputs an enlargement operation signal to the control device 70 when the ON button is pressed, and outputs a reduction operation signal to the control device 70 when the OFF button is pressed.

  Based on the detection signals from the limit switches LS <b> 1 to LS <b> 4, the control device 70 determines whether the opening movement, the closing movement, the middle-fold expansion, and the middle-fold reduction of the wing 5 are permitted or prohibited. On the condition that the opening movement is permitted, the control device 70 outputs an opening movement signal to the control valve V1 in response to the reception of the opening operation signal from the operation switch SW1, and confirms that the closing movement is permitted. In response to the condition, a close movement signal is output to the control valve V1 in response to reception of the close operation signal from the operation switch SW1. Further, on the condition that expansion of the folding is permitted, a folding expansion signal is output to the control valve V2 in response to the reception of the expansion operation signal from the operation switch SW2, and the reduction of folding is permitted. In response to the condition, in response to the reception of the reduction operation signal from the operation switch SW2, an intermediate reduction signal is output to the control valve V2.

  The limit switch LS1 (first detection means) determines whether or not the main wing portion 20 exists in the first rotation range 71 (shown in FIG. 8) (the rotation angle of the ceiling surface body 22 from the upper frame 15 is the second And is fixed to the vicinity of the right side of the bracket 31 of the upper frame 15 so as to operate in contact with the cylinder body 35 of the first cylinder 33. ing. When the wing 5 is in the fully closed state, the output of the limit switch LS1 is OFF, and as shown in FIG. 8, when the wing 5 is opened and the rotation angle of the ceiling surface body 22 reaches the second predetermined angle θ2, The cylinder body 35 of one cylinder 33 contacts the limit switch LS1, and the output of the limit switch LS1 is switched to ON. This ON state is continuously maintained when the rotation angle of the ceiling surface body 22 is equal to or larger than the second predetermined angle θ2. The second predetermined angle θ2 at which the limit switch LS1 is turned ON is set in advance as an angle at which the lower end of the side wall lower portion 21 does not interfere with the frame members 11 and 12 when the wing 5 is bent halfway. The range until the rotation angle reaches the second predetermined angle θ2 is the first rotation range 71 in which the lower end of the side wall lower portion 21 may interfere with the frame members 11 and 12 when the wing 5 is bent halfway. .

  When the control device 70 detects the ON signal from the limit switch LS1, it determines that the middle fold expansion and the middle fold reduction of the wing 5 are allowed, and does not detect the ON signal (detects the OFF signal. It is determined that the middle fold enlargement and the middle fold reduction of the wing 5 are prohibited.

  The limit switch LS2 (second detection means) detects whether or not the wing 5 is bent halfway. As shown in FIG. 5, the knuckle fixed to the tip of the cylinder rod 47 of the second cylinder 43. It is being fixed to the lower surface of the ceiling surface body 22 so that it may operate | move by contact with the front end of 55. FIG. When the wing 5 is in the normal posture, the output of the limit switch LS2 is maintained in the ON state by contact with the front end of the knuckle 55. When the wing 5 starts to be bent, the knuckle 55 is separated from the limit switch LS2, and the output of the limit switch LS2 is switched to OFF.

  The limit switch LS3 (third detection means) detects whether or not the inclination angle of the side wall lower portion 21 with respect to the side wall upper portion 23 is equal to or smaller than a predetermined angle θ1 (shown in FIG. 11) that allows the wing 5 to be closed. The second cylinder 43 is fixed to the lower surface of the ceiling surface body 22 so as to be operated by contact with the rear end of the knuckle 55 fixed to the tip of the cylinder rod 47 of the second cylinder 43. In the present embodiment, when the second cylinder 43 is shortened the most (when the wing 5 is in the limit folding position), the output of the limit switch LS3 is switched ON by contact with the rear end of the knuckle 55, and the rest In the state, the rear end of the knuckle 55 does not contact the limit switch LS3, and the output of the limit switch LS3 is maintained in the OFF state. That is, the limit middle folding posture is used as the middle folding posture in which the inclination angle of the side wall lower portion 21 with respect to the side wall upper portion 23 is the predetermined angle θ1 that allows the wing 5 to be closed. The predetermined angle θ1 is not limited to the angle in the limit bending posture, and may be another angle as long as it allows the wing 5 to be closed.

  In the control device 70, the second limit switch LS2 detects that the wing 5 is folded, and the inclination angle of the side wall lower portion 21 with respect to the side wall upper portion 23 exceeds a predetermined angle θ1 (has reached the limit folding posture). When the third limit switch LS3 detects that the first drive mechanism 30 does not rotate in the closing direction. That is, the control device 70 determines that the closing movement of the wing 5 is prohibited when neither of the limit switch LS2 and the limit switch LS3 detects an ON signal (detects an OFF signal), When the ON signal is detected from either the limit switch LS2 or the limit switch LS3, it is determined that the closing movement of the wing 5 is permitted.

  The limit switch LS4 (fourth detection means) is configured such that when the wing 5 in a predetermined middle folded position (in the present embodiment, the above-described middle folded position) is closed, the side wall lower portion 21 approaches or contacts the frame members 11 and 12. It detects whether or not the limit position has been reached, and is fixed to the upper frame 15 so as to operate in contact with the distal end portion (lower end outer surface) of the side wall lower portion 21 in the limit folding position. When the limit fold 5 wing 5 is closed and the side wall lower part 21 reaches the limit position, as shown in FIG. 15, the tip of the side wall lower part 21 contacts the limit switch LS4, and the output of the limit switch LS4 is turned on. Switch to When the wing 5 is moved to open from this state, the tip of the side wall lower portion 21 is separated from the limit switch LS4, and the output of the limit switch LS4 is switched to OFF.

  When the control device 70 does not detect the ON signal from the limit switch LS4 (detects the OFF signal), it determines that the closing movement of the wing 5 is allowed and detects the ON signal. It is determined that the closing movement of the wing 5 is prohibited.

  In the present embodiment, no specific prohibition condition is set for the opening movement of the wing 5, but another limit switch may be provided to set the opening movement prohibition condition. In addition, the place where the limit switches LS1 to LS4 are set is not limited to the above. Further, in place of the contact type limit switch, other types such as a non-contact type limit switch and an angle sensor for detecting a rotation angle are used. Detection means may be provided. Further, instead of the limit switches LS1 to LS4, a cylinder with a sensor capable of detecting the expansion / contraction length of the cylinder rod may be used.

  When the fully closed wing 5 is moved to open, the operator presses the ON button of the operation switch SW1. As a result, the wing 5 starts to open. Until the rotation angle of the ceiling face body 22 reaches the second predetermined angle θ2, the output of the limit switch LS1 is OFF, and the control device 70 determines that the middle fold expansion and the middle fold reduction of the wing 5 are prohibited. Therefore, even if the ON button of the operation switch SW2 is pressed, the normal posture is maintained without starting the middle break.

  When the rotation angle of the ceiling surface body 22 reaches the second predetermined angle θ2, the output of the limit switch LS1 is switched ON, and the control device 70 determines that the middle fold expansion and the middle fold reduction of the wing 5 are allowed. The operator can set the wing 5 to a desired bent position as indicated by a two-dot chain line in FIG. 8 by pressing the ON button or the OFF button of the operation switch SW2.

  Further, when the wing 5 is broken, the output of the limit switch LS2 is turned OFF, and the control device 70 determines that the closing movement of the wing 5 is prohibited. Therefore, even if the OFF button of the operation switch SW1 is pressed, the wing 5 does not move closed. However, since the opening movement is permitted, the wing 5 is opened by pressing the ON button of the operation switch SW1.

  When the wing 5 is set to the limit folded position, the output of the limit switch LS3 is turned ON, and the control device 70 determines that the closing movement of the wing 5 is allowed. 5 moves closed. Note that the wing 5 is moved to open by pressing the ON button of the operation switch SW1 in the same manner as described above.

  When the wing 5 is set to the limit folded posture and the ON button of the operation switch SW1 is continuously pressed, the wing 5 moves to the fully open state (shown in FIG. 12) through the upright open state (shown in FIG. 10). . In this fully open state, the upper left side of the luggage compartment 1 opens most widely.

  Further, when the wing 5 is set to the limit folded posture and the OFF button of the operation switch SW1 is continuously pressed, the wing 5 moves to the limit position (shown in FIG. 15) through the state shown in FIG. By setting the wing 5 at this limit position, the entire area on the left side of the luggage compartment 1 can be opened, and the upward protruding height of the wing 5 (the height of the luggage compartment 1) can be minimized. . Further, at the limit position, the output of the limit switch LS4 is turned ON and the control device 70 determines that the closing movement of the wing 5 is prohibited. Therefore, even if the operator continues to press the OFF button of the operation switch SW1. The hydraulic pressure is not supplied to the shortened side of the first cylinder 33.

  As described above, according to the present embodiment, the first drive mechanism 30 sets the open / close state of the wing 5 and the second drive mechanism 40 sets the folded posture of the wing 5. The states of the wings 5 that can be set vary depending on the combination of postures.

  For example, as shown in FIG. 16, when the wing 5 is opened from the fully closed state (FIG. 16A) and the ceiling surface body 22 is erected as shown in FIG. , Almost all sides are opened, and the upper part is covered with the wings 5. For this reason, it is suitable when carrying out cargo handling work outdoors in the rain.

  Further, by further opening the wing 5 as shown in FIG. 16C from the state of FIG. 16B and setting it to the limit folding position as shown in FIG. The upper left side can be opened most widely. Therefore, it is suitable when carrying out cargo handling from above the cargo compartment 1 using a crane or the like.

  Further, as shown in FIG. 16 (e), by closing the wing 5 from the state shown in FIG. 16 (d) to the limit position, the entire left side of the cargo compartment 1 is opened and the wing 5 is moved upward. The protruding height (height of the luggage compartment 1) can be minimized. Therefore, it is suitable for the case where cargo handling work is performed indoors where the upper space of the cargo compartment 1 is limited (for example, indoors where a transport mechanism 80 such as a crane is installed above the cargo compartment 1).

  Thus, the cargo handling operation can be performed by setting the wings 5 in a suitable folded posture in accordance with the cargo handling operation or the cargo handling location.

  Moreover, since the freedom degree in design of a wing shape increases, it can respond flexibly to the various request | requirements with respect to a bending posture.

  Moreover, since the side wall lower part 21 is rotationally driven on both the front and rear sides of the luggage compartment 1, the rotational movement of the side wall lower part 21 when setting the folded posture can be stabilized.

  In addition, since the first drive mechanism 30 and the second drive mechanism 40 are disposed on the upper frame 15 of the front and rear frame members 11 and 12, the ceiling frame horizontal frame 27, the side wall upper vertical frame 28 and the side wall lower vertical frame 29, The first drive mechanism 30 and the second drive mechanism 40 can minimize the space in the luggage compartment 1 from being narrowed.

  In addition, when the limit switch LS1 detects that the main wing portion 20 exists in the first rotation range 71, the control device 70 prohibits the second drive mechanism 40 from rotationally driving the lower side wall 21. That is, in order to rotationally drive the side wall lower portion 21 by the second drive mechanism 40, the side wall lower portion 21 may interfere with the frame members 11, 12 when the wing 5 is folded in the first rotation range 71. It is necessary that the main wing portion 20 does not exist (the rotation angle of the ceiling surface body 22 is not less than the second predetermined angle θ2). For this reason, interference with the side wall lower part 21 and the frame members 11 and 12 resulting from the middle break of the wing 5 can be prevented reliably.

  Further, in the control device 70, the limit switch LS2 detects that the wing 5 is bent, and the limit switch LS3 detects that the inclination angle of the side wall lower portion 21 with respect to the side wall upper portion 23 exceeds the predetermined angle θ1. During this time, the first drive mechanism 30 is prohibited from rotating in the closing direction of the main wing portion 20. Therefore, in order to close the wing 5 by the first drive mechanism 30, it is necessary that the wing 5 is not bent or that the wing 5 is in the limit bending posture. For this reason, unscheduled interference between the side wall lower portion 21 and the frame members 11 and 12 due to the closing movement of the wing 5 can be reliably prevented.

  Further, when the limit switch LS4 detects that the side wall lower portion 21 has reached the limit position, the control device 70 prohibits the first drive mechanism 30 from rotationally driving the main wing portion 20 in the closing direction. Accordingly, when the side wall lower portion 21 reaches the limit position, the closing movement of the wing 5 by the first drive mechanism 30 is stopped. For this reason, it is possible to reliably prevent unscheduled interference between the side wall lower portion 21 and the frame members 11 and 12. In addition, it is possible to reliably prevent an excessive burden on the first drive mechanism 30.

  In the above embodiment, an example in which hydraulic cylinders are used for the first drive mechanism 30 and the second drive mechanism 40 has been shown. However, the present invention is not limited to this, and the main wing portion is formed by, for example, a wire and a pulley. It is possible to use various drive mechanisms such as rotating the 20 and the side wall lower portion 21.

DESCRIPTION OF SYMBOLS 1 Loading room 4 Beam material 5,6 Left and right wing 10 Floor board member 11,12 Front and rear frame member 20 Main wing part 21 Side wall lower part 22 Ceiling surface body 23 Side wall upper part 27 Ceiling surface body horizontal frame 28 Side wall upper part vertical frame 29 Side wall lower part vertical frame 30 1st drive mechanism 31 1st bracket 32 2nd bracket 33 1st cylinder 34 cylinder rod 35 cylinder body 40 2nd drive mechanism 41 3rd bracket 42 1st link arm 43 2nd cylinder 44 4th link arm 45 2nd link Arm 46 Third link arm 47 Cylinder rod 48 Cylinder body 60 Power unit 70 Control device (control means)
71 First rotation range LS1, LS2, LS3, LS4 Limit switch (first to fourth detection means)
SW1, SW2 operation switch V1, V2 Control valve θ1 predetermined angle θ2 second predetermined angle

Claims (6)

A main wing portion having an L-shaped cross section having a ceiling surface body and an upper portion of the side wall; and a wing having a lower portion of the side wall connected to the upper portion of the side wall so as to be able to be folded inward, the ceiling surface body of the main wing portion, A wing-type roof opening / closing device that is rotatably connected to a beam member installed between upper frames of frame members on the front and rear sides of a box-type cargo compartment of a vehicle, and the wings are opened and closed by the rotational movement of the main wing part. And
A first drive mechanism that rotationally drives the main wing portion to open and close the wing;
A wing-type roof opening and closing device, comprising: a second drive mechanism for rotating the lower portion of the side wall to fold the wing. The switchgear according to claim 1,
The second drive mechanism is provided between a front end portion of the main wing portion and a front end portion of the lower side wall portion, and between a rear end portion of the main wing portion and a rear end portion of the side wall lower portion. Wing-type roof opening and closing device characterized by that. The switchgear according to claim 2, wherein
The first drive mechanism is provided between the upper frame member on the front frame member and the front end portion of the main wing portion, and between the upper frame member on the rear frame member and the rear end portion of the main wing portion. Each provided,
The ceiling surface body has front and back ceiling surface body horizontal frames that form a front edge and a rear edge of the ceiling surface,
The side wall upper portion has front and rear side wall upper vertical frames that form a front end edge portion and a rear end edge portion of the upper side wall,
The side wall lower portion has front and rear side wall lower vertical frames that form a front end edge portion and a rear end edge portion of the side wall lower portion,
The first driving mechanism includes a first bracket fixed to the upper frame of the frame member, a second bracket fixed to the ceiling surface horizontal frame, and one of the fixed end and the moving end and the other of the first bracket. A first cylinder rotatably connected to the bracket and the second bracket, respectively.
The second drive mechanism includes a third bracket that is fixed to the lateral frame of the ceiling surface outside the second bracket in the vehicle width direction, and a first link arm that is rotatably connected to the third bracket. One and the other of the end and the moving end are rotatably supported with respect to the second cylinder rotatably connected to the second bracket and the first link arm, respectively, and the lower end portion of the side wall upper vertical frame. A second link arm having one end portion, a third link arm having one end portion rotatably supported with respect to an upper end portion of the side wall lower vertical frame, and a first link arm rotatably connected to the first link arm. And a fourth link arm rotatably connected to the other end of the second link arm and the other end of the third link arm. Switchgear. The switchgear according to any one of claims 1 to 3,
Control means for controlling rotation driving of the main wing portion by the first driving mechanism and rotation driving of the lower portion of the side wall by the second driving mechanism;
First detection means for detecting whether or not the main wing portion exists in a first rotation range in which the lower portion of the side wall may interfere with the frame member when the wing is bent;
The control means prohibits rotational driving of the lower portion of the side wall by the second drive mechanism when the first detection means detects that the main wing portion exists in the first rotation range. A wing-type roof opening and closing device. The switchgear according to claim 4, wherein
Second detection means for detecting whether or not the wing is broken;
A third detecting means for detecting whether or not an inclination angle of the lower portion of the side wall with respect to the upper portion of the side wall is equal to or smaller than a predetermined angle that allows the wing to be closed;
The control means detects that the second detection means detects that the wing is bent halfway and that the third detection means indicates that the inclination angle of the lower side wall with respect to the upper side wall exceeds a predetermined angle. When detecting, the wing-type roof opening and closing device for prohibiting rotation of the main wing portion in the closing direction by the first drive mechanism. The switchgear according to any one of claims 4 to 5,
A fourth detecting means for detecting whether or not the lower portion of the side wall has reached a limit position close to or in contact with the frame member when the wing in a predetermined bent position is closed;
The control means prohibits rotation of the main wing portion in the closing direction by the first drive mechanism when the fourth detection means detects that the lower side wall has reached the limit position. Opening and closing device for wing type roof.

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