JP2000062464A - Full-open chucking mechanism of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize the opening/closing checking force of the full-open checking mechanism of a sliding door, and to improve a feeling of opening/ closing operation. SOLUTION: The passage gap of a traverse roller 1B as a lower roller is obtained by a dimension between checking projections 13 and 13 provided in the free ends of the pair of arm sections 11 and 11 of a spring member 10 U-shaped in a plan. Thus, a change in the passage gap caused by the forming error or the like of a lower guide rail 4 does not exist, and a stable chucking force is provided. Even if a sliding door full-open holding force is increased, the pair of arm sections 11 and 11 are simultaneously distorted outside by small deformation strokes by the traverse roller 1B while the door is closed, and the passing-through of the traverse roller 1B is permitted. Thus, a feeling of opening/closing operation is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide door full open check mechanism for a van type automobile.

[0002]

2. Description of the Related Art As shown in FIG. 4, a slide door SD of a van type vehicle is slide-guided in the front-rear direction by an upper guide means U-G, a lower guide means LG and a rear guide means RG, and the lower guide. The means L and G are provided with a fully open check mechanism for holding the slide doors S and D at the fully open position so that the slide doors S and D are not accidentally closed from the fully open position.

As shown in FIG. 5, the lower guide means L and G have a lower roller 1 consisting of a vertical roller 1A and a horizontal roller 1B mounted on a roller stay 2 fixed to the lower end of the slide doors S and D. The vertical roller 1A is arranged on the guide surface 3 provided at the opening edge of the vehicle body, while the horizontal roller 1A is arranged.
B is accommodated and arranged in a channel-shaped lower guide rail 4 arranged opposite to the guide surface 3, and the lateral rollers 1B and the lower guide rail 4 guide the opening / closing loci of the sliding doors S and D in the vehicle width direction. I am doing it.

As for the full-open check mechanism D / C provided in the lower guide means L / G, for example, as shown in FIG. 6, an opening 5 is formed on the outer side wall of the rear end of the lower guide rail 4, and A cover member 7 having a leaf spring 6 riveted to cover the opening 5 is joined and fixed, and a rear free end of the leaf spring 6 is arranged to project into the lower guide rail 4 through the opening 5. When 1B bends the leaf spring 6 and gets over it, the rear end of the leaf spring 6 is moved to the lateral roller 1B.
It is known that the slide doors S and D are held in the fully opened position by engaging with the.

In addition to this, as shown in FIG. 7, a lower guide rail 4A is arranged on the guide surface 3 so that the opening of the channel section faces outward, and the lower guide rail 4A accommodates the vertical roller 1A. A cover member 7A having an opening 5A formed in the bottom wall of the rear end of the lower guide rail 4A and a rubber 8 having a guide plate 9 baked and fixed thereon.
To cover the opening 5A with the rubber 8 through the opening 5A and project into the lower guide rail 4A.
It is known that when A bends the rubber 8 and rides over it, it engages with the rear end of the guide plate 9 to hold the fully open position of the slide doors S and D.

[0006]

In the structure shown in FIG. 6, the forming accuracy and the assembling accuracy of the lower guide rail 4, the cover member 7, and the leaf spring 6 directly affect the passage gap a of the lateral roller 1B, The variation of the check force when passing the lateral roller 1B becomes large.

Further, if the spring force of the leaf spring 6 is increased in order to increase the fully open holding force of the slide doors S and D, the closing operation force of the sliding doors S and D becomes large, and therefore, the fully open holding force and the closing operation are performed. It becomes very difficult to manage characteristics that conflict with strength.

On the other hand, in the structure shown in FIG. 7, the vertical roller 1
When A rides over the rubber 8 with the guide plate 9, vertical vibrations are generated in the entire slide doors S and D, so that there is a problem that the opening / closing operation feeling is deteriorated.

Therefore, according to the present invention, it is possible to stabilize the check force when passing the lower roller, easily manage the characteristics of the fully open holding force and the closing operation force, and further improve the opening and closing operation feeling. It provides a fully open check mechanism.

[0010]

According to a first aspect of the invention, there is provided a rear of a guide rail for accommodating a roller provided at a lower end portion of a slide door and for guiding an opening / closing locus of the slide door in a vehicle width direction. While installing a spring member formed in a U-shape in a plane with a pair of arm portions so as to cover the outside of the end portion, fenestration portions are formed oppositely on both side walls of the guide rail,
Checking projections, which are formed inside each free end of the arm portion so as to face each other and engage with and disengage from the roller, are arranged so as to project into the guide rail through these fenestrations.

The invention of claim 2 is characterized in that a required clearance is set between the arm portion of the spring member and the side wall of the guide rail according to claim 1.

According to the invention of claim 3, claims 1 and 2 are provided.
The upper wall of the guide rail and the spring member are provided with an engaging portion that engages with each other to prevent the spring member from rotating and an engaged portion.

According to the invention of claim 4, the clearance in the vehicle width direction generated between the engaging part and the engaged part according to claim 3 when the engaging part engages with the engaged part It is characterized in that it is smaller than the clearance set between the section and the side wall of the guide rail.

According to the invention of claim 5, claims 1 to 4 are provided.
The spring member described in (1) is characterized in that it is provided with a cushioning material that covers the end portion of the free end portion of the arm portion.

According to the invention of claim 6, claims 1 to 5 are provided.
The spring member described in 1 is fixed to the upper wall of the channel-shaped guide rail by a bracket portion extending from a connecting wall that connects a pair of arm portions, and the pair of arm portions are arranged from the rear end of the guide rail. It is characterized in that even the check projections are set in the effective bending region.

[0016]

According to the first aspect of the invention, the passage gap of the roller is obtained by the dimension between the check projections that are provided so as to face each other at the free ends of the pair of arm portions of the spring member. Since it is sufficient to manage the dimension between the check protrusions, it is not affected by the guide rail molding accuracy or spring member assembly accuracy, and therefore the check force when passing through the rollers does not vary and is stable. A feeling of opening / closing operation can be obtained.

Further, the fully open holding force of the slide door can be increased by strengthening the spring force of the pair of arms,
Even if this fully open holding force is increased, when the sliding door is closed, the pair of arms are simultaneously bent outward with a small deformation stroke due to the pressing force of the rollers, so that they easily pass through the check projections and the closing force becomes extremely heavy. Therefore, it is possible to easily manage and adjust the characteristics of the fully open holding force and the closing operation force of the slide door.

Moreover, since the roller only passes through between the check protrusions on both sides and does not cause vertical vibration of the slide door when passing, the opening / closing operation feeling is not impaired at all.

According to the invention of claim 2, claim 1
In addition to the effect of the invention described above, since a required clearance is set between each arm portion of the spring member and the side wall of the guide rail, the checking force when the roller passes is balanced left and right, and the roller is moved in the left and right direction. Without wobbling to,
The sliding door can be prevented from swinging in the vehicle width direction, and stable opening and closing can be performed.

Further, since the clearance is provided in this manner, the work of attaching the spring member to the guide rail can be easily performed.

According to the third aspect of the invention, in addition to the effects of the first and second aspects of the invention, the spring member is prevented from rotating with respect to the guide rail by the engagement between the engaging portion and the engaged portion. Therefore, the spring member can be fixed to the upper wall of the guide rail at one point by bolts and nuts, the fixing structure of the spring member to the guide rail can be simplified, and the mounting work can be facilitated. The number of points can be reduced as much as possible, which can greatly contribute to cost reduction.

According to the invention of claim 4, claim 3
In addition to the effect of the invention described above, the clearance in the vehicle width direction between the engaging portion and the engaged portion is set to be smaller than the clearance between the arm portion and the guide rail side wall. It is possible to prevent the check forces of the left and right arm portions from being unbalanced even if they are slightly displaced in the rotation direction.

According to the invention of claim 5, claim 1
In addition to the effects of the inventions of 4 to 4, since the end of the free end of the arm is covered with a cushioning material, it is possible to prevent the metal hammering sound from being generated by the collision between the end and the side wall of the guide rail when the roller passes. It is possible to improve the quality.

According to the invention of claim 6, claim 1
In addition to the effects of the inventions of 5 to 5, the effective bending area of the pair of arms can be set from the rear end of the guide rail to the check projection, and a large margin for setting the check force can be secured, so manufacturing errors and assembly are possible. The influence of errors will be reduced.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below in detail with reference to the drawings by attaching the same reference numerals to the same parts as those in the conventional structure.

1 to 3, sliding doors S and D (see FIG. 4) accommodating the lateral roller 1B of the lower roller 1 are accommodated.
At the rear end of the lower open channel-shaped lower guide rail 4 for guiding the opening / closing locus of the vehicle in the vehicle width direction, the spring member 1 constituting the full-open check mechanism D / C of the slide door S / D is formed.
I wear 0.

The spring member 10 comprises a pair of arm portions 11, 11.
And a connecting wall 12 that connects these arm portions 11 and 11 in a U-shape in plan view.
A check projection 13 having a flat semicircular shape with which the lateral roller 1B engages and disengages is provided at the free end of the so as to face inward.

On the inner surface of the connecting wall 12 of the spring member 10,
A bracket piece 14 as a bracket portion bent to have an L-shaped cross section is caulked and fixed by a rivet 20, and the spring member 10 causes the pair of arm portions 11 and 11 to extend along the outside of the side walls 4a and 4a of the lower guide rail 4. At the same time, the bracket piece 14 is superposed on the back surface of the upper wall 4b of the lower guide rail 4, and is fastened and fixed to the upper wall 4b at one point with bolts and nuts 15.

At the center of the front edge of the bracket piece 14, a claw portion 16 as an engaging portion is formed by bending upward, while at the upper wall 4b of the lower guide rail 4, the claw portion 16 is inserted and engaged. A locking hole 17 as an engaging portion is provided, and the spring member 10 is formed by the engagement between the claw portion 16 and the locking hole 17.
Has been stopped.

On both side walls 4a, 4a of the lower guide rail 4, the check projections 13, 1 of the arm portions 11, 11 are provided.
A window opening 18 is cut out at a position corresponding to 3, and the check projections 13, 13 are arranged so as to project into the lower guide rail 4 through these window openings 18, 18.

A required clearance δ ₁ is set between the pair of arm portions 11, 11 and the corresponding side walls 4a, 4a of the lower guide rail 4.

The clearance δ ₁ is set to be sufficiently larger than the clearance δ ₂ between the side edge of the claw portion 16 and the side edge of the locking hole 17. That is, the locking hole 17 is the claw 1
6 is formed with a dimension slightly larger than the width dimension of the claw portion 16 so that the clearance 6 can be smoothly inserted, and the clearance δ ₂
Is so small that the clearance is smaller than δ ₁ .

Therefore, the spring member 10 covers the outside of the rear end portion of the lower guide rail 4. Further, the spring member 10 is a bracket piece 1 extending from the connecting wall 12.
By being fixed to the upper wall 4b of the lower guide rail 4 by 4, the pair of arm portions 11, 11 are set in the effective bending region from the rear end of the lower guide rail 4 to the check projections 13, 13.

The free ends of the arms 11, 11 are covered with a cap-shaped cushioning material 19 made of an elastic material such as rubber or synthetic resin.

According to the structure of the above embodiment, when the sliding doors S and D shown in FIG. 4 are slid rearward to open the doors, the horizontal roller 1B causes the arm portion of the spring member 10 to move near the fully opened position. 11, 11 check projections 13, 13
When it abuts against the arm 1, the lateral roller 1B is moved rearward so that the space between the check projections 13 and 13 is pushed open.
When the lateral rollers 1B pass through between the check projections 13 and 13 by the bending deformation of the check projections 1 and 11 simultaneously, the check projection 1 is restored by the restoring action of the arm portions 11 and 11.
3, 13 are returned to their original positions, and the lateral rollers 1B are engaged with the checking projections 13, 13 to hold the fully open positions of the slide doors S, D.

Here, the above-mentioned passage gap a ₁ of the horizontal roller 1B is a dimension between the check projections 13 and 13 provided so as to face the free ends of the pair of arm portions 11 of the spring member 10. Since it is sufficient to manage the size between the check projections 13 and 13 obtained, there is no influence on the forming accuracy of the lower guide rail 4, the assembling accuracy of the spring member 10, and the like. It is possible to obtain a stable opening / closing operation feeling without variation in the checking force when passing.

Further, the fully open holding force of the slide doors S and D can be increased by strengthening the spring force of the pair of arm portions 11, 11, but even if this fully open holding force is increased, the sliding doors S and D are laterally closed. The pressing force of the roller 1B causes the pair of arm portions 11 and 11 to simultaneously bend outward with a small deformation stroke, so that the closing operation force does not become extremely heavy by passing through the check projections 13 and 13, and therefore the slide operation is prevented. The characteristics of the fully open holding force and the closing operation force of the doors S and D can be easily managed and adjusted.

Moreover, since the horizontal roller 1B only passes through between the check projections 13 on both sides, it does not vibrate the slide doors S and D in the vertical direction at the time of passage, so that the opening / closing operation feeling is not impaired. Not at all.

In particular, in this embodiment, the arm portions 11, 11 of the spring member 10 and the lower guide rails 4 corresponding thereto are provided.
The required clearance δ ₁ between each side wall 4a, 4a
Since the check force at the time of passing the horizontal roller 1B is balanced on the left and right and the horizontal roller 1B does not fluctuate in the left and right direction, the sliding doors S and D are prevented from swinging in the vehicle width direction. And stable opening and closing can be performed.

Moreover, since the clearance δ ₁ is provided in this manner, the work of attaching the spring member 10 to the lower guide rail 4 can be easily performed.

Further, by engaging the claw portion 16 provided on the bracket piece 14 of the spring member 10 with the locking hole 17 provided in the upper wall 4b of the lower guide rail 4, the spring member 10 is attached to the lower guide rail 4. Since it is possible to prevent the spring member 10 from rotating, the spring member 10 can be fastened and fixed to the upper wall 4b of the lower guide rail 4 at one point with bolts and nuts 15 as shown in the present embodiment. The fixing structure for the rail 4 can be simplified, the mounting work can be facilitated, and the number of parts can be reduced as much as possible, which can greatly contribute to cost reduction.

On the other hand, as described above, the claw portion 16 and the locking hole 17 are provided.
Even when the spring member 10 is stopped by and, the clearance δ ₂ between the claw portion 16 and the locking hole 17 in the vehicle width direction is smaller than the clearance δ ₁ between the arm portion 11 and the side wall 4a. Therefore, the spring member 10 is the bolt / nut 1.
Even if it is slightly deviated in the rotation direction about the fixed point by 5, the interference between the arm portions 11 and 11 and the side wall 4a can be avoided, and the balance of the check force of the left and right arm portions 11 and 11 can be avoided. it can.

Since the effective bending area of the pair of arm portions 11, 11 can be set to the length of the pair of arm portions 11, 11 from the rear end of the lower guide rail 4 to the check projections 13, 13. The margin for setting the check force is large, and the effects of manufacturing errors and assembly errors are reduced.

Further, since the ends of the free ends of the arm portions 11 and 11 are covered with the cushioning material 19, the ends of the arm portions 11 and 11 and the side wall 4a of the lower guide rail 4 when the horizontal roller 1B passes. It is possible to prevent the metal tapping sound from being generated due to the impact of the contact, and to improve the quality.

In the above embodiment, the check mechanism in the lower guide rail 4 is illustrated, but the invention is not limited to this.
It can also be applied to upper guide rails.

Further, although the engaging portion and the engaged portion are constituted by the claw portion 16 of the bracket piece 14 and the locking hole 17 of the upper wall 4b of the lower guide rail 4, the invention is not limited to this, and the upper wall 4b is not limited to this. The hook portion may be provided so as to project downward and the bracket hole 14 may be provided with a locking hole, or the side wall 4a, 4a of the lower guide rail 4 may be engaged. However,
Providing the locking hole 17 in the upper wall 4b is advantageous in manufacturing because the guide rail can be formed by bending a channel having a hole formed by pressing and bending it into a channel shape. Further, it is provided on the side where the lateral roller 1B passes. Since it does not project, it is not necessary to consider interference with the lateral roller 1B.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view of the same embodiment.

FIG. 3 is an exploded perspective view of the same embodiment.

FIG. 4 is a side view of a slide door type vehicle as an object of the present invention.

5 is a cross-sectional explanatory view of a range A in FIG.

FIG. 6 is a sectional view showing a first example of a conventional structure.

FIG. 7 is a sectional view showing a second example of a conventional structure.

[Explanation of symbols]

1B Horizontal roller (lower roller) 4 Lower guide rail 4a side wall 4b Upper wall 10 Spring member 11 Arm 13 Check projection 16 Claw (engagement part) 17 Locking hole (engaged part) 18 Window opening 19 cushioning material

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinichi Mizutani             14-1 Showa-cho, Minato-ku, Nagoya-shi, Aichi Aichi machine             Machine Industry Co., Ltd. (72) Inventor Jun Yamagishi             1-14-7 Maruyama, Isogo-ku, Yokohama-shi, Kanagawa               Oi Manufacturing Co., Ltd. (72) Inventor Yoshimitsu Takeda             Nissan, Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan             Inside the automobile corporation

Claims (6)

[Claims] 1. A pair of arm portions are provided so as to accommodate a roller provided at a lower end portion of a slide door and cover an outer side of a rear end portion of a guide rail for guiding an opening / closing locus of the slide door in a vehicle width direction. While the spring member formed in a U-shape in plan view is mounted, fenestration portions are formed oppositely on both side walls of the guide rail, and are formed inside the respective free ends of the arm portions so as to engage with the rollers. A full-open check mechanism for slide doors, in which check projections to be removed are arranged to project into the guide rails through these window portions. 2. The mechanism for checking the full opening of a slide door according to claim 1, wherein a required clearance is set between the arm portion of the spring member and the side wall of the guide rail. 3. The upper wall of the guide rail and the spring member are provided with an engaging portion that engages with each other to prevent the spring member from rotating and an engaged portion. Fully open check mechanism of the slide door described in 2. 4. The clearance in the vehicle width direction generated between the engaging portion and the engaged portion when the engaging portion and the engaged portion are engaged with each other, based on the clearance set between the arm portion of the spring member and the side wall of the guide rail. The fully opening check mechanism of the slide door according to claim 3, wherein the mechanism is also made smaller. 5. The mechanism for checking the full opening of a slide door according to claim 1, wherein the spring member is provided with a cushioning material that covers the end portion of the free end portion of the arm portion. 6. A spring member is fixed to an upper wall of a channel-shaped guide rail by a bracket portion extending from a connecting wall that connects a pair of arm portions, and the pair of arm portions are attached to the rear of the guide rail. The fully open check mechanism for a slide door according to any one of claims 1 to 5, wherein the area from the end to the check projection is set in the effective bending region.