JPH0733715U - Locking device for front window of vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the cost by reducing the number of parts. [Structure] Rocking plate 33 is rocked from a lock position to a lock release position side against an urging force, and when locking plate 33 exceeds a dead center position, the direction of the urging force is reversed to unlock locking plate 33. When the latch member 32 disengages from the striker 25 when the front window body 20 moves from the open position to the closed position and swings, the contact portion 35 of the latch member 32 rocks. When the plate 33 is swung from the unlocked position to the dead center position against the biasing force and the locking plate 33 exceeds the dead center position, the direction of the biasing force is reversed and swings to the lock position side to return. Therefore, it is not necessary to provide a special member for returning the locking plate 33, and only one biasing means is required.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention movably supports a front window body at a closed position where the front opening of the vehicle compartment is closed and an open position along the ceiling of the vehicle compartment to open the front opening. The present invention relates to a lock device for a front window body of a vehicle, which is immovably restrainable in the open position.

[0002]

[Prior art]

 A conventional locking device for a front window of a vehicle is disclosed in, for example, Japanese Patent Publication No. 3-69434. That is, it has first, second and third engaging members, and swings the second engaging member to a disengaged position deviated from the first engaging member to make the front window movable and to close the front window to the ceiling. When moving forward from a position along the part, the fixing member relatively moves to swing the first engaging member, and when the first engaging member swings, the third engaging member swings. Then, the second engaging member is swung from the disengaged position to a position where it can be engaged with the first engaging member.

[0003]

[Problems to be solved by the device]

 However, such a conventional front window lock device for a vehicle needs to include three engaging members and three springs that urge them in a predetermined direction, which increases the number of parts and complicates the configuration. Therefore, there is a problem that the cost is increased. The present invention has been made in view of such conventional problems, and has a lock device for a front window of a vehicle, which can reduce the number of parts, simplify the configuration, and reduce the cost. Is intended to provide.

[0004]

[Means for Solving the Problems]

 The gist of the present invention for achieving such an object is to close the front opening (12) of the passenger compartment and to close the front opening (12) along the ceiling (15) of the passenger compartment. A lock device for a front window body of a vehicle, wherein the front window body (20) is movably supported at an open position, and the front window body (20) is immovably restrained at the open position. A base member (31) is fixed to one of the front window body (20), and a striker (31) fixed to the other of the inside of the vehicle interior and the front window body (20) is fixed to the base member (31). 25) to support the latch member (32) for immovably restraining the front window body (20), and to attach the latch member (32) to the base member (31) and the striker (25). The locked position for restraining the engaged state and the latch member (32) The locking plate (33) is swingably supported at a lock release position where the lock plate is separated from the lock position and the lock plate (33) is moved toward the lock position side at the dead center position. The front window body (20) is moved forward from the open position to the latch member (32) by urging it in a swinging direction and a swinging direction toward the lock releasing position side at the lock releasing position side. Then, when the latch member (32) is disengaged from the striker (25), the latch member (32) contacts the locking plate (33) in the unlocked position and attaches the locking plate (33). The lock device for a front window body of a vehicle is characterized in that an abutment portion (35) for swinging to the dead center position against the force and returning to the lock position side is formed.

[0005]

[Action]

 When the front window body (20) is moved from the closed position to the open position, the latch member (32) engages with the striker (25), and the locking plate (33) is rocked to the locked position by the urging force. The latch member (32) is moved to restrain the latch member (32) in a state of being engaged with the striker (25). Therefore, the front window body (20) is also immovably restrained in the open position. In order to move the front window body (20) from the open position to the closed position, the locking plate (33) may be swung from the locked position to the unlocked position side against the biasing force. When the locking plate (33) exceeds the dead center position, the direction of the biasing force reverses and the locking plate (33) swings to the unlocked position. As a result, the latch member (32) is released from the restraint, can be detached from the striker (25), and the front window body (20) can be moved from the open position to the closed position. When the front window body (20) is moved from the open position to the closed position, the latch member (32) is disengaged from the striker (25) and swings. When the latch member (32) swings, the contact portion (35) of the latch member (32) swings the locking plate (33) from the unlocked position to the dead point position against the biasing force, and the locking plate (33 When 33) goes beyond the dead center position, the direction of the urging force reverses and swings to the lock position side to prepare for the next lock operation.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIGS. 1 and 2, a cabin 10 of a mobile crane is applied as the vehicle compartment according to the present embodiment. A front opening 12 is opened in the front surface of the cabin 10, and guide rails 16 are provided on both side wall portions of the cabin 10 from the front surface of the cabin 10 to the ceiling portion 15. A front window body 20 is movably guided and supported by the guide rail 16 at a closed position where the front opening 12 is closed and an open position along the ceiling portion 15 of the cabin 10 so as to open the front opening 12. . Roller members 21 that are rotatably fitted in the guide grooves of the guide rails 16 are supported on the front and rear portions of both side edges of the front window body 20, respectively. Strikers 25 are fixed to both end portions of the rear edge of the front window body 20.

At the upper end of the rear wall 13 of the cabin 10, there is provided a lock device 30 that allows the front window body 20 to be immovably restrained in the open position. The locking device 30 has a base member 31 fixedly mounted on the rear wall 13, and on the base member 31, a latch member 32 that engages with and disengages from the striker 25 and restrains the front window body 20 immovably swings. Supported as possible. A striker engaging portion 32a is formed on the front edge side of the swinging end of the latch member 32, and the rear edge side of the swinging end is the contact portion 35. The latch member 32 is biased by a coil spring 36 in a direction opposite to the direction in which the striker 25 is engaged. A pivot 34 is fixed to the base member 31, and the pivot 34 causes the locking plate 33 to lock the latch member 32 in a state in which the latch member 32 is engaged with the striker 25, and the lock release to release the lock by separating from the latch member 32. It is pivotally supported in a position and in a swingable manner. A lower end portion of the locking plate 33 projects downward to form a handle portion 37.

The base member 31 has a connecting hole 38 formed therein, while the locking plate 33 has a connecting hole 39 formed therein. Both ends of a return spring 40, which is a winding spring, are engaged with both the connecting holes 38 and 39, respectively. The return spring 40 positions the locking plate 33 at the dead point (the rocking position of the locking plate when the hole center of the connecting hole 39 is located on the line connecting the axial center of the pivot 34 and the hole center of the connecting hole 38). At the boundary, the lock position is biased toward the lock position side and the lock release position is biased toward the lock release position side. The locking plate 33 projects toward the contact portion 35 side of the latch member 32, and when the latch member 32 is separated from the striker 25, the contact portion 35 of the latch member 32 is attached to the locking plate 33 in the unlocked position. An abutted portion 33a is formed so as to abut and rock the locking plate 33 against the biasing force of the return spring 40 to the dead center position and return to the lock position side. The base member 31 is formed with an entrance groove 46 for guiding the striker 25, and the back portion of the entrance groove 46 and the latch member 32 prevent the striker 25 from rattling in the engaged state. A guide member 45 that can be held from the direction is fixed.

Next, the operation will be described. When the front window body 20 is in the closed position closing the front opening 12, the return spring 40 urges the locking plate 33 in the direction of swinging to the lock position side, as shown in FIG. Is in the disengaged position where it does not engage the striker 25.

When the front window body 20 moves from the closed position to the open position along the ceiling portion 15 while being guided by the guide rails 16, the striker 25 latches against the biasing force of the winding spring 36. The striker engaging portion 32a of the member 32 is pushed in, the latch member 32 engages with the striker 25, and the locking plate 33 swings to the lock position by the urging force of the return spring 40 as shown in FIG. The latch member 32 is moved to restrain the latch member 32 to be engaged with the striker 25. As a result, the front window body 20 is also immovably restrained in the open position. To move the front window body 20 from the open position to the closed position, the handle portion 37 is operated to swing the locking plate 33 from the lock position to the lock release position side against the biasing force of the return spring 40. Just do it. When the locking plate 33 exceeds the dead center position described above, the direction of the urging force of the return spring 40 is reversed and the locking plate 33 is urged in the direction of swinging to the unlocked position side, and the locking plate 33 remains as it is. It swings to the unlocked position and is held in that position as shown in FIG. As a result, the latch member 32 is released from the restraint, can be detached from the striker 25, and the front window body 20 can be moved from the open position to the closed position. At this time, due to the frictional resistance between the guide groove of the guide rail 16 and the roller member 21 of the front window body 20, the urging force of the winding spring 36 does not cause it to swing to the non-engagement position. At this time, the contact portion 35 of the latch member 32 and the contacted portion 33a of the locking plate 33 are in contact with each other.

When the front window body 20 is moved from the open position to the closed position while being guided by the guide rail 16, the latch spring 32 is swung to the non-engaging position side by the winding spring 36, and eventually, Remove from striker 25. When the latch member 32 swings to the non-engagement position side, the contact portion 35 of the latch member 32 pushes the contact portion 33a of the locking plate 33 against the biasing force of the return spring 40, and the locking plate 33 is pushed. When the locking plate 33 moves beyond the dead center position by swinging the lock release position to the dead center position, the direction of the urging force of the return spring 40 is reversed and the return spring 40 swings toward the lock position side as shown in FIG. The locking plate 33 returns to be ready for the next lock operation without moving, that is, without operating the handle portion 37.

Although the striker 25 is fixedly provided on the front window body 20 side and the locking device 30 is provided on the cabin 10 side in the above-described embodiment, the reverse mode, that is, the front window body 20 is shown. It goes without saying that the locking device 30 may be provided on the side and the striker 25 may be provided on the side of the cabin 10.

[0013]

[Effect of device]

 According to the lock device for a front window of a vehicle according to the present invention, when the locking plate is swung from the locked position to the unlocked position against the biasing force and the locking plate exceeds the dead center position, the biasing force is applied. When the locking plate is swung to the unlocked position side and the front window body is moved from the open position to the closed position and the latch member is disengaged from the striker and swung, The contact part of the member swings the locking plate from the unlocked position to the dead center position against the biasing force, and when the locking plate exceeds the dead center position, the direction of the biasing force reverses to the lock position side. Since it swings and returns, it is not necessary to provide a special member for returning the locking plate, and one urging means is sufficient, and the number of parts is reduced and the cost is reduced. Can.

[Brief description of drawings]

FIG. 1 is a front view of a lock device according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a mounted state of a lock device according to an embodiment of the present invention.

FIG. 3 is a side view of a lock device according to an embodiment of the present invention.

FIG. 4 is a bottom view of a lock device according to an embodiment of the present invention.

FIG. 5 is an operation explanatory view of a lock device showing an embodiment of the present invention.

FIG. 6 is an explanatory view of the operation of the lock device according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Cabin (vehicle compartment) 12 ... Front opening 20 ... Front window body 25 ... Striker 30 ... Lock device 32 ... Latch member 33 ... Locking plate 35 ... Contact part 40 ... Return spring

Claims (1)

[Scope of utility model registration request] 1. A front window member is movably supported at a closed position where the front opening of the vehicle compartment is closed and an open position along the ceiling of the vehicle compartment to open the front opening, and the front window member is moved. In a lock device for a front window body of a vehicle, which is incapable of being constrained to the open position, a base member is fixed to one of a vehicle interior side and a front window body, and the vehicle interior side and the front window are fixed to the base member. A lock that engages and disengages with a striker fixed to the other side of the body to support a latch member that constrains the front window body immovably, and that constrains the latch member to the base member in a state in which the latch member is engaged with the striker. A rocking plate is swingably supported between a position and a lock release position where the lock plate is separated from the latch member to release the constraint, and the rocking plate swings toward the lock position side at the lock position side with a dead center position as a boundary. The direction of movement and When the front window body moves forward from the open position to the latch member, the latch member is urged in the direction of swinging to the lock release position side when the latch member is separated from the striker. A contact portion is formed in which the latch member abuts the locking plate in the unlocked position to swing the locking plate to the dead center position against the biasing force and to return to the lock position side. A lock device for a front window body of a vehicle characterized by the above.