JPH0365469B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to a locking device for a sliding door.

Conventional technology One-box type cars, for example,
As shown on page 143 of "Nitsun Service Bulletin" No. 464 (M10-1) published by Nissan Motor Co., Ltd. in August 1957, there is a model equipped with a sliding door. This will be illustrated and explained in FIG. Reference numeral 1 indicates the vehicle body, 2 indicates a door opening that opens on the side of the vehicle body 1, and 3 indicates a waist guide rail whose front side is curved toward the inside of the vehicle interior, and an outer wall extending rearward from the rear edge of the door opening 2. It is disposed substantially horizontally on the side surface 1a in the front-rear direction. Reference numeral 4 indicates an upper guide rail whose front side is curved toward the interior of the vehicle, and is disposed at the upper edge of the door opening 2 in parallel with the waist guide rail 3. Reference numeral 5 indicates a lower guide rail whose front side is curved toward the interior of the vehicle, and is disposed at the lower edge of the door opening 2 in parallel with the waist guide rail 3. Reference numeral 6 indicates a sliding door, and waist rollers 7 are provided at the rear edge, the front side of the upper edge, and the front side of the lower edge, which slide and engage with the waist guide rail 3, upper guide rail 4, and lower guide rail 5. , an upper roller 8 and a lower roller 9 are respectively installed, and the door opening 2 is opened and closed by moving around the outside of the vehicle body 1 at the rear from the door opening 2 and moving in the front and back direction. On the other hand, numeral 10 indicates a door lock opening/closing operation mechanism assembled slightly below the front side of the waistline portion of the sliding door 6, and includes a handle arranged on the outside of the sliding door 6, that is, an outside handle 11, and an outside handle 11 of the sliding door 6. A handle placed on the inside of the vehicle, specifically an inside handle 12 and a sliding door 6
It is comprised of an opening/closing mechanism 13 that is built in and opens and closes in conjunction with the operations of the outside handle 11 and the inside handle 12. Reference numeral 14 indicates a rear lock mechanism, which includes a striker 15 fixed to the rear edge of the door opening 2 and an opening/closing mechanism of the door lock opening/closing operation mechanism 10, which is disposed at the rear edge of the sliding door 6 corresponding to the striker 15. 13 via a bell crank 16 and engages with the striker 15 when the door is closed, and this engagement opens and closes the opening/closing mechanism 1.
The latch 17 is released in conjunction with the opening of the latch 3.

Problems to be Solved by the Invention However, in the above-described structure, when the sliding door 6 that closes the door opening 2 receives an external force directed from the passenger compartment to the outside of the vehicle, the rear locking mechanism 14 closes the sliding door 6. Although the rear side is integrally connected to the vehicle body 1 and has a strong supporting force, the front side of the sliding door 6 is connected to an upper roller 8 to an upper guide rail 4 and a lower roller 9 to a lower guide rail 5.
However, since they are simply engaged with and supported by the respective parts, and lack of integral connection with the vehicle body 1, there is a possibility that the supporting force may be weakened. As a preventive measure, it is possible to thicken the upper guide rail 4 and lower guide rail 5, and to thicken the support shafts of the upper roller 8 and lower roller 9, but this increases the weight and goes against the weight reduction. It is difficult to adopt it suddenly because it is stored away.

Therefore, it is conceivable to assemble a locking mechanism consisting of a striker and a latch similar to the rear locking mechanism 14 on the front side of the sliding door 6. However, unlike the case where the sliding door has a center pillar and the lock mechanism can be provided approximately at the vertical center of the front edge of the sliding door, when there is no center pillar in front of the sliding door 6 as in the above-mentioned vehicle body structure, Since the lock mechanism is assembled to at least one of the front side of the upper edge or the front side of the lower edge of the sliding door 6 and the corresponding upper edge or lower edge of the door opening 2, the lock The distance between the mechanism and the opening/closing mechanism 13 becomes longer, the connecting member between the opening/closing mechanism 13 and the locking mechanism becomes longer, and this device prevents the unlocking force of the locking mechanism from increasing due to the increase in weight of the longer connecting member. There is.

However, the locking mechanism consisting of a striker and a latch has a latch 19 pivoted on the base plate 18 as shown in FIG.
The latch 19 is biased by a spring 22 so that the latch 19 is directed in the direction of entry of the striker 21 (direction of arrow A), and when the latch 19 is locked, the striker 21 is inserted into the locking groove 20.
the latch 19 which is engaged and urged in the release direction (direction of arrow B) by the spring 22,
It is adapted to be received by an engagement open lever 23 pivoted to the base plate 18. When the lock is released, the above-mentioned opening/closing mechanism 13
By opening and closing the same opening/closing mechanism, the engagement open lever 23 is rotated in the direction of arrow C to release the latch 19, and the latch 19 is subsequently rotated in the direction of arrow B by the spring 22. The striker 21 is moved in a direction opposite to the arrow A direction. Therefore, the engagement open lever 2
3 is removed from the latch 19 by rotating it in the direction of arrow C against the friction with the latch 19 due to the elasticity of the spring 22, so a large force is required to release the locking mechanism.

In view of this, the present invention provides a means for providing a structure other than a guide rail between at least one of the front side of the upper edge and the front side of the lower edge of the sliding door and the corresponding upper edge or lower edge of the door opening. By attaching a front locking mechanism with a small release force to the member at the front end of the opening in the vehicle body, the connection between the sliding door that has closed the door opening and the vehicle body can be achieved by attaching a front lock mechanism to the member at the front end of the opening in the vehicle body. By using this structure, the coupling strength can be improved without reinforcing the guide rail, and there is no need to provide a new rigid structure to the sliding door to attach the front locking mechanism, making it possible to reduce weight. It resists the sliding door locking device.

Means for Solving the Problems In the present invention, in the front side of the upper guide rail or the lower guide rail at least one of the upper edge and the lower edge of the door opening, a part of the vehicle body other than the guide rail is provided. A receiving hole opened in a member at the front end of the opening, and a door arm of an upper or lower roller support mechanism disposed on the side of this receiving hole so as to be movable up and down, and connected to an opening/closing mechanism of a door lock opening/closing operation mechanism. The front locking mechanism is provided with a locking member that locks into the receiving hole when the door is closed and releases this lock in conjunction with the opening and closing movement of the opening/closing mechanism.

Function When the door is closed, the locking member is locked in the receiving hole as the sliding door closes, and when a lateral external force is applied to the sliding door, the locking member is locked due to the barrier effect of the receiving hole. The front side of the sliding door and the vehicle body are integrally connected by ensuring engagement between the sliding door and the receiving hole.
On the other hand, by operating the handle when the door is opened, the locking member is pulled out from the receiving hole while following the opening and closing movement of the opening/closing mechanism and is released from the receiving hole in a state where no excess frictional force or elastic force is applied.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, in which the same parts as the conventional structure are denoted by the same reference numerals.

In FIGS. 1 to 6, a waist guide rail 3 having a substantially square-shaped cross section curved toward the inside of the vehicle interior is attached to the outer surface extending rearward from the rear edge of the door opening 2 on the side of the vehicle body 1. Abbreviation with the front side curved towards the interior of the vehicle.
An upper guide rail 4 with a letter-shaped cross section is placed on the upper edge of the door opening 2, and a lower guide rail 5 with a substantially letter-shaped cross section with the front side curved toward the interior of the vehicle is placed on the lower edge of the door opening 2. rollers that are arranged substantially horizontally to each other and that slide and engage with each of the guide rails 3, 4, and 5; a pair of carriage rollers 24 before and after the knob; and side rollers that are arranged between the carriage rollers 24 and receive vertical loads. 25 assembled into the roller bracket 26, and this roller bracket 26.
A waist roller support mechanism 29A, an upper roller support mechanism 29, and a door arm 28 rotatably pivoted in the horizontal direction via a hinge pin 27.
B. Lower roller support mechanisms 29C are provided at the rear edge, the front of the upper edge, and the front of the lower edge of the sliding door 6, respectively. Specifically, each door arm 28 of the waist roller support mechanism 29A, upper roller support mechanism 29B, and lower roller support mechanism 29C is fixed to the inner panel of the sliding door 6 with screws 30. By moving the sliding door 6 rearward, the carriage roller 24 slides into and engages with the waist guide rail 3, upper guide rail 4, and lower guide rail 5, and the side rollers 25 apply vertical load. The sliding door 6 wraps around from the door opening 2 to the rear outside of the vehicle body while supporting the door opening 2, opening the door opening 2, and by moving the sliding door 6 from the rear to the front, the waist, upper, The sliding door 6 moves along each of the lower guide rails 3, 4, and 5, and the outer panel surface of the sliding door 6 and the vehicle body 1
The door opening 2 is closed while being substantially flush with the outer surface of the door opening 2. Furthermore, a door lock opening/closing operation mechanism 10 consisting of an outside handle 11, an inside handle 12, and an opening/closing mechanism 13 is provided at the front central portion of the sliding door 6.
has been assembled. The opening/closing mechanism 13 has a base plate 3 fixed to the inner panel of the sliding door 6.
1, a remote control lever 33 formed into a substantially V-shape by an input arm 33a and an output arm 33b interlocking with the outside handle 11 and the inside handle 12, which are pivoted to the base plate 31 with a pin 32; pin 34
The release lever 35 has an output arm 35b and an input arm 35a overlapped with the output arm 33b of the remote control lever 33, and is formed into a substantially U-shape.
A relief lever 38 is provided with a long groove 38a formed at the tip thereof into which an operating pin 37 protruding from the output arm 35b of the release lever 35 is fitted. Further, the output arm 33b of the remote control lever 33 and the input arm 35a of the release lever 35 can be accidentally operated by the outside handle 11 or the inside handle 12, causing the rear lock mechanism 14 or the lock mechanism 5, which will be described later, to be locked.
2 and 63 are connected via a safety lock mechanism 39 that prevents release. This safety lock mechanism 39 has a knob lever 40 pivoted to a base plate 31 with a pin 41, a knob rod 42 connected to one end of the knob lever 40, and a knob 43 exposed on the interior side of the sliding door 6 at the tip of the knob rod 42. On the other hand, a relief link 44 is pivotally attached to the other end of the knob lever 40, a safety lock pin 45 is fixed to the tip of this relief link 44, and this safety lock pin 45 is connected to the base plate 31 and the remote control lever. 33 output arm 33b and release lever 35 input arm 35a
The operating slots 46a are each opened in a polymerized state,
46b and 46c, and an idle groove 4 is provided at the upper end of the operating elongated hole 46d of the remote control lever 33.
6d, and a movable long groove 46e is connected to the lower end of the operation long hole 46a of the base plate 31.
By locating the operation elongated holes 46a, 46b, and 46c at the upper ends of the side handles 11,
Alternatively, only the remote control lever 33 is rotated by operating the inside handle 12, and this rotation is not transmitted to the release lever 35. On the other hand, when the knob 43 is pulled up, the safety lock pin 45 operating slot 46a, 46b, By positioning the outside handle 1 at the lower end of the
1 or the inside handle 12 is transmitted to the release lever 35 to open the opening/closing mechanism 13. The rear locking mechanism 14 includes a striker 15 fixed to the rear edge of the door opening 2 and a latch 17 disposed at the rear edge of the slide door corresponding to the striker 15. This latch 17 is pivoted by a pin 47 to a base plate (not shown) fixed to the inner panel of the sliding door 6, and a locking groove 17 formed in the latch 17
a is biased by a spring 48 so as to point in the direction in which the striker 15 approaches. and,
This latch 17 is connected to the output arm 35b of the release lever 35 of the opening/closing mechanism 13 via a bell crank 16, a release lever 49, an open lever 50, and an engagement open lever 51, and engages the striker 15 when the door is closed. By engaging the engagement open lever 51, the engagement with the striker 15 is maintained, and the opening/closing mechanism 13 is opened and closed.
In other words, the output arm 35b of the release lever 35 swings about the pin 34 to release the engagement open lever 51 and release the striker 1.
5 and is configured to be disengaged from it.

On the other hand, a lower front locking mechanism 52 is provided around the front side of the lower guide rail 5 at the lower edge of the door opening 2 and at the lower roller support mechanism 29C attached to the front side of the lower edge of the sliding door 6. This front lock mechanism 52 is connected to a shell outer 53 which is a vehicle body side member at the lower edge of the door opening 2 and a floor panel 54 which is a vehicle body side member as well as a member at the front end of the vehicle body opening other than the guide rail. A bracket 57 is screwed to the receiving hole 56 opened in the horizontal part of the bracket 55 fixed across the frame and to the upper surface of the door arm 28 of the lower roller support mechanism 29C on the vehicle body 1 side. A hook member 59 that is freely assembled and has a locking hook portion 59a formed at its tip as a locking member.
It consists of. This hook member 59 is fixed to one end of the support shaft 58, is fitted around the outer periphery of the support shaft 58, has one end moored to the head of the support shaft 58, and has the other end attached to the bracket 57.
The hook portion 59 is biased upwardly by a spring 60 that is in contact with the door.
a is inserted into and locked into the receiving hole 56. Further, one end of a wire 61 is rotatably connected to the base of the hook member 59 around the support shaft 58. The other end of this wire 61 is connected to the switch 1
The wire 61 connects the hook member 59 to the base of the relief lever 38 of No. 3, and is configured such that the hook member 59 is inserted into and released from the receiving hole 56 in conjunction with the opening of the opening/closing mechanism 13. has been done.
Note that 62 is a tube seat fixed to the door arm 28 and to which one end of a wire tube (not shown) of the wire 61 is engaged.

Further, an upper front locking mechanism 63 is assembled to the upper roller support mechanism 29B disposed on the front side of the upper edge of the sliding door 6. This upper front lock mechanism 63 includes a locking member 67 rotatably attached to the upper surface of the door arm 28 via a support shaft 65.
It consists of a locking groove 68 as a receiving hole opened in this locking member 67, and a stopper pin 64 as a locking member that locks in this locking groove 68. The locking member 67 is connected to the relief lever 38 of the opening/closing mechanism 13.
is connected to the base of the body via a wire 66. This locking member 67 supports the sliding door 6 in a closed state by engaging with the stopper pin 64 and restraining the rotation of the roller bracket 26 relative to the door arm 28 of the upper roller support mechanism 29B when the door is closed. A locking groove 68 is formed to release the engagement with the opening/closing mechanism 13 via the release lever 35, the relief lever 38, and the wire 66 in conjunction with the opening/closing mechanism 13. The locking member 67 is biased by a spring (not shown) mounted around the support shaft 65 in a direction to engage the stopper pin 64 and the locking groove 68, specifically in the direction of arrow D in FIG. .

According to the above embodiment structure, in order to open the sliding door 6 that closes the door opening 2, the outside handle 11 or the inside handle 12 must be operated while the knob 43 of the safety lock mechanism 39 is pulled up. Therefore, the opening/closing mechanism 13 is opened, and with this opening movement, the engagement open lever 51 is disengaged from the latch 17 of the rear locking mechanism 14, and the latch 17 is released from engagement, and the lower front locking mechanism 52 is released. Hook portion 5 of hook member 59
9a moves downward around the support shaft 58 to open the receiving hole 56.
Then, the locking member 67 of the upper front locking mechanism 63 rotates about the support shaft 65 in the direction opposite to the direction of arrow D, and the locking groove 68 and the stopper pin 6 are rotated.
4, the waist roller 7, upper roller 8, The lower roller 9 is the waist guide rail 3, upper guide rail 4,
While slidingly contacting and engaging with the lower guide rail 5, the sliding door 6 can move around to the outside of the vehicle body 1 from the solid line shown in FIG. 5 to the imaginary line to open the door opening 2.

On the other hand, when closing the sliding door 6, by moving it to the front of the sliding door 6,
While the waist roller 7, upper roller 8, and lower roller 9 slide and engage with the waist guide rail 3, upper guide rail 4, and lower guide rail 5, respectively, the slide door 6 closes the door opening 2 from the outside of the vehicle body 1. However, at this time of closing, after the latch 17 of the rear locking mechanism 14 engages with the striker 15, the engagement open lever 51 engages with the latch 17 and maintains the engagement between the latch 17 and the striker 15. , the hook portion 59a of the hook member 59 of the lower front locking mechanism 52 is inserted into the receiving hole 56 and locked while slidingly contacting the bracket 55 around the receiving hole 56, and then the upper front locking mechanism 63 is inserted into the receiving hole 56 and locked.
Now, as the opening degree of the roller bracket 26 and door arm 28 of the upper roller support mechanism 29B becomes smaller following the front curvature of the upper guide rail 4, the relative distance between the stopper pin 64 and the locking groove 68 increases. and the engagement of the striker 15 and latch 17 of the rear locking mechanism 14 and the hook member 59 of the lower front locking mechanism 52.
At approximately the same time as the locking groove 68 engages with the stopper pin 64, the rear edge, the front side of the upper edge, and the front side of the lower edge of the sliding door 6 are engaged with each other. is integrally connected to the vehicle body 1 by the rear lock mechanism 14, the lower front lock mechanism 52, and the upper front lock mechanism 63, and can exert sufficient support force against external forces in the lateral direction.

Further, the lower front lock mechanism 52 is different from a structure that utilizes a latch that is engaged and held by an engagement open lever, and the lower front lock mechanism 52 has a receiving hole 5 provided in the vehicle body side member.
6 and a hook member 59 that is inserted into and locked in the receiving hole 56, the hook member 59 is firmly locked to the vehicle body due to the barrier effect of the receiving hole 56, and when releasing the engagement. Unlike the engagement open lever and latch, frictional resistance is not generated, and the release force is reduced. Moreover, since the hook member 59 of the lower front locking mechanism 52 is assembled to the lower roller support mechanism 29C, there is no need to attach a new rigid structure to the sliding door 6 for attaching the lower front locking mechanism 52, and weight reduction can be achieved. . This is clear from the fact that the lower roller support mechanism 29C is functionally made to have high rigidity, and the portion of the sliding door 6 to which the lower roller support mechanism 29C is fixed generally also has a highly rigid structure.

FIG. 7 shows a different example of the lower front lock mechanism of the locking device of the present invention, and this lower front lock mechanism 52A locks the door arm 2 of the lower roller support mechanism 29C corresponding to the receiving hole 56 when the door is closed.
A cylindrical bracket 69 is fixed to the part 8, and a straight rod-shaped hanging member 59A is fitted into this bracket 69 so as to be movable up and down, and between the lower end of this hanging member 59A and the bottom surface of the storage groove 70. A spring 71 is interposed, and this spring 71 allows the locking member 59A to be
The upper end of the door is inserted into and hooked into the receiving hole 56 when the door is closed. Further, the locking member 59A is configured to be moved downward by a connecting arm mechanism 72 that connects the end of a wire 61 that is connected to the relief lever 38 of the opening/closing mechanism 13.

In the above embodiment, the front lock mechanism is composed of a lower front lock mechanism 52 and an upper front lock mechanism 6.
Although the explanation has been given by exemplifying a structure different from that of the upper front lock mechanism 63, it is possible to replace the upper front lock mechanism 63 with a lock mechanism having the same structure as the lower front lock mechanism 52, or simply omit the upper front lock mechanism 63. Furthermore, the same effect can be obtained even if a locking mechanism having a structure similar to the lower front locking mechanism 52 is attached only to the front side of the upper edge of the sliding door 6.

Effects of the Invention As described above, according to the present invention, when the door is closed, the rear side locking mechanism locks the rear edge of the sliding door and at least one of the front side of the upper edge or the front side of the lower edge of the sliding door. and a front locking mechanism, and a receiving hole for a hooking member of the front locking mechanism is provided to open in a member at the front end of an opening of the vehicle body other than the guide rail,
In addition, since the locking member is also locked in the receiving hole, the external force in the lateral direction of the sliding door can be properly received, and the external force in the lateral direction of the sliding door is absorbed by the member at the front end of the opening of the vehicle body and the guide rail. Because it is distributed between the
In addition to improving the supporting force against external forces in the lateral direction, the front locking mechanism is composed of a receiving hole and a locking member that locks into the receiving hole, so it is more effective than a locking mechanism consisting of a latch and a striker. In addition to reducing the release force, since the locking member of the front locking mechanism is attached to the roller support mechanism, there is no need to provide a new rigid structure on the sliding door to attach the front locking mechanism. It has a great practical effect of being able to achieve weight reduction while exhibiting sufficient supporting force.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a schematic diagram of the door lock opening/closing operation mechanism of the same embodiment, FIG. 3 is a schematic diagram of the rear lock mechanism of the same embodiment, and FIG. 4 is a diagram of the lower roller support mechanism and lower front lock mechanism of the same embodiment. Exploded perspective view shown, No. 5
6 is a cross-sectional view taken along the - line in FIG. 5, and FIG. 7 is a cross-sectional view showing a different example of the present invention, with the main portion of the lower roller support mechanism omitted. 8 is a side view of an automobile equipped with a conventional sliding door locking device, and FIG. 9 is a schematic diagram of a conventional locking mechanism comprising a striker and a latch. 1...Vehicle body, 2...Door opening, 3...Waist guide rail, 4...Upper guide rail,
5...Lower guide rail, 6...Sliding door,
DESCRIPTION OF SYMBOLS 10...Door lock opening/closing operation mechanism, 11...Outside handle, 12...Inside handle, 13...Opening/closing mechanism, 24...Carriage roller, 26...Roller bracket, 28...Door arm, 29A...Waist roller support mechanism , 29
B...Upper roller support mechanism, 29C...Lower roller support mechanism, 52...Lower front lock mechanism,
56... Receiving hole, 59... Hook member, 59A...
...Latching member.

Claims (1)

[Claims] 1. Place a waist guide rail whose front side is curved toward the interior of the vehicle on the outer side of the vehicle that extends from the rear edge of the door opening on the side of the vehicle, and an upper guide rail whose front side is curved toward the interior of the vehicle. On the upper edge,
Further, lower guide rails whose front sides are curved toward the interior of the vehicle are arranged approximately horizontally to each other at the lower edge of the door opening, and a roller bracket is assembled with rollers that slide and engage with each of the guide rails. The waist, upper, and lower roller support mechanisms, which consist of a door arm to which this roller bracket is rotatably pivoted in the horizontal direction, are attached to the rear edge, the front of the upper edge, and the front of the lower edge of the sliding door. In preparation, the sliding door is moved around the rear outside of the vehicle body from the door opening and moved in the front and back direction to open and close the door opening. A door lock opening/closing operation mechanism consisting of an opening/closing mechanism that opens and closes in conjunction with each other, a striker fixed to the rear edge of the door opening, and a door lock provided at the rear edge of the sliding door corresponding to the striker. A rear lock mechanism comprising a latch connected to the opening/closing mechanism of the opening/closing operation mechanism and engaging the striker when the door is closed, and releasing this engagement in conjunction with the opening/closing mechanism of the opening/closing mechanism. At least one of the upper and lower edges of the door opening has an opening in a member at the front end of the opening of the vehicle body other than the guide rail. A receiving hole, which is assembled to the door arm of the upper or lower roller support mechanism disposed on the side of the receiving hole, is connected to the opening/closing mechanism of the door lock opening/closing operation mechanism, and is latched to the receiving hole when the door is closed. A locking device for a sliding door, comprising a front locking mechanism comprising a locking member that releases the locking in conjunction with the opening movement of the opening/closing mechanism.