JPS61278419A - Sliding door - Google Patents

Abstract

PURPOSE:To enable the closing motion of a door to be smoothly effected with the provision of durability by configurating a device in such a way that the door is supported by both a front and a rear support arm while the closing motion of the door is being affected, meanwhile, the door is rotated and slided by means of both a front positioning and a rear positioning arm. CONSTITUTION:In order to open a door 4 from its closed position, the door 4 is pulled out of outside. This causes a front support arm 3a which supports the door 4, to rotate outward allowing both a front positioning arm 6 and a rear positioning arm 7 to rotate outward simultaneously. Then, these arms are suspended when they rotate by 90 deg. where the front arm 6 strikes its front end against a step of a bracket 2. Simultaneously, a projection 10 at the tip end of a lever 9 which is an integral part of the rear arm, 7, is displaced from a swing guide groove 16 of a stopper section 14 arranged on a rail 13 of the door 4 to a guide groove 15 accompanied with the rotation of the rear arm 7. Under this condition, the door 4 is pushed afterward through the rail 13 which engages with a roller 27 on the bracket 8, and the door 4 is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Application of the Invention The present invention is utilized in the field of sliding doors for automobiles, other vehicles, and aircraft, particularly for cab-over type automobiles or passenger cars that can be slidably opened and closed in the front and rear directions. Regarding sliding doors.

Conventional technology Sliding doors conventionally installed on cab-over vehicles or wagons minimize the space required when opening and closing the door, and allow people to ascend and descend and load and unload cargo. Each plant is set up to fulfill two purposes. Among these sliding doors, an arm that can pivot horizontally outwards is attached to the vehicle body side, and the tip of this arm is rotatably supported on a sliding part provided inside the door. With this structure, the arm pivots around the fulcrum on the vehicle body.
From the closed state where the outer surface of the door and the outer surface of the vehicle body are flush, open it by pushing it outward by at least the wall thickness of the door from the outer surface of the vehicle body, and then operate it in reverse to close it. Then, with the door pushed open, the sliding part was used against the tip of the arm to slide the door back and forth.

Problems to be Solved by the Invention According to the conventional structure described above, the arm It is necessary to keep the length as short as possible, and at the same time, the position where the arm is connected to the door is necessarily biased to the rear of the center of gravity of the door, and the arm is not supported by the door due to the door's sliding position. Because it is also used as a part, the arm itself, the pivot point between the arm and the vehicle body, and the connecting part between the arm and the sliding part,
The uneven load on the door, combined with the outward tilt of the door due to eccentric support, causes twisting of the arm and each shaft branch, which tends to cause wear and damage to each part, and the resulting damage to the door. There were gaps that prevented smooth turning and sliding.

The present invention provides a support arm that supports the door in addition to the positioning arm that performs the swinging action of the door, and by supporting the vicinity of the center of gravity of the door with the support arm,
In addition to uniformly supporting the door and reducing the load and torsion on the positioning arm and sliding parts, the turning and sliding movements when opening and closing the door are differentiated and performed reliably, and at the same time, both functions are mutually performed. The purpose is to ensure a smooth succession and maintain the smooth operation and durability of this type of door.

Means for Solving the Problems The structure of the present invention will be explained with reference to the drawings.
1, the front support arm (3a) and the rear support arm (3b) are bendable about the axis QD to form a support arm (3), and the base end (3c) of the support arm (3) is The support arm (3) is pivotably supported horizontally by a shaft, and the tip (3d) of the support arm (3) is mounted to a bracket (5) fixed near the center of gravity of the door (4) so as to be pivotable horizontally by the shaft. Pivotally supported.

The mounting bracket (2) includes a front support arm (3).
The base end (6a) of the forearm (6), which has the same length as a), is pivoted on a shaft so that it can pivot horizontally, and the mounting bracket (2) has a base end (6a) that allows the forearm (6) to pivot horizontally. 90
The base end (7a) is formed with a stepped portion (2a) that restrains the front arm (6) so that the rear arm (7), which has the same length as the front arm (6), can pivot horizontally and parallel to the front arm (6). Support arm (
3) Support the sleeve coaxially with the sleeve (a). The tip (6b) of the front arm (6) is rotatably supported by a shaft (C) on a rail receiving bracket (8) having a U-shaped cross section, and the tip (7b) of the rear arm (7) is supported by an axis aη. The rail receiving bracket (8) is rotatably supported at the center of the rail, and the lever (9) is fixed to the rear arm (7) in a horizontal direction perpendicular to the rear arm (7). A protrusion O (14) is provided vertically at the tip of 9). The rail receiving bracket (
8), the forearm (6) is rotated 90 degrees and the vehicle body (1
), the arm lock (12) is pivotally supported by a shaft (C) and the arm lock α2 is One end (lla) of the spring I is locked to the arm lock 0 so as to press against the protrusion α11@ at all times, and the other end (1
1b) to the rail receiving bracket (8). Rollers @ (c) are rotatably planted in the front and rear of the upper surface of the rail receiving bracket (8), and are fixed horizontally to the inside of the door (4) in the longitudinal direction of the vehicle body, with the cross section facing downward. A U-shaped rail (13) is slidably installed on the roller 0, and the side wall (13) on the door side of the rail 0 is
A part of 3a) is connected downward to form an extension part (13b), and at the bottom of the extension part (13b), a stopper part 04, which will be described later, is connected to a rail receiving bracket (8). It is installed horizontally, facing the 6th floor rail. The stopper part α
As shown in FIGS. 8 and 9, there is a guide groove (US) that guides the protrusion of the lever (9) in the forward and backward direction of the rail, and a protrusion α [ A turning guide groove αe is carved toward the passenger compartment side, and a protrusion (15b) is formed following the guide W (15a) and the gushing wall (15a) along the guide groove μS. At the rear of the groove α gull is the rail (when I3 is moved forward, the rear arm (7
) is formed with a protrusion that abuts against the shaft (Iη) of the tip (7b), and further a slide lock (to) is formed on the stopper part I with the shaft (
) is rotatably supported by the slide lock (
e) whose tip is the shaft (7b) of the rear arm (7)
17) is formed with an arc-shaped notch (20a) that engages and disengages from the base. Further, one end (29a) of the spring (29) is locked to the slide lock (2), and the other end (29b) is locked to the stopper part I, so that the slide opening and the lever are formed in pressure contact with the shaft α.

In addition, the turning guide groove e side of the guide 1 (15a) is directed toward the vehicle body (1) side along the turning guide groove ←e in order to ensure appropriate displacement of the protrusion 01 of the lever (9) when turning. to form a turning guide part (15c).

Function: To explain the function when opening the door according to the present invention, when the door (4) is pushed from inside the vehicle or pulled from outside the vehicle as shown in FIG. 5 from the closed state of FIG. , due to the displacement of the bracket (5) and the shaft @, the door (4)
), the front support arm (3a) pivots outward horizontally around axis 01), and at the same time the front arm (6) for positioning supports 7) rotate horizontally outwards around the shaft (2), and the mounting bracket (7) rotates 90 degrees with respect to (2) so that the base end (6a) of the forearm (6) is in the 9th position. The door (4) stops when it collides with the step (2a) of the mounting bracket (2), and the door (4) extends outward from the vehicle body (1) through a distance corresponding to the length of the rear arm (7). located parallel to. From the closed state shown in Fig. 4 to the state shown in Fig. 5 in which the door is displaced to the outside of the vehicle body, the extended portion (13b) f
C through the rail (stop bar installed integrally with I3! +
The protrusion ga of 141 abuts one side of the shaft housing η of the tip (7b) of the rear arm (7), and the notch a of the slide lock ■ pivotally supported on the stopper part I abuts on the other side of the shaft a. Since the stopper 11a4) and the rail and door (4) integrated with each other do not move in the forward direction (left side in Figure 5) or rearward direction (right side in Figure 5) of the vehicle body, . And, along with the rotation of the rear arm (7), it is perpendicular to the rear arm (7).
<-791 is also displaced, and the protrusion at the tip of the lever (9) is displaced from the rotation guide groove αe of the stopper portion G4 onto the guide groove α1. During this time, one side of protrusion α1 has a slide lock (
To) +! 'ill edge (20a) is touched and the slide lock (20a) is rotated counterclockwise against the elasticity of the spring (20a). [Since the other side abuts against the inner surface of the turning guide part (15c) connected to the stopper part I, neither the stopper part ajl nor the 6th rail moves backward. Eventually, at the position where the rear arm (7) turns 90 degrees and stops, the protrusion (Ill) is located on the sliding line of the rail 0.

In this state, if you push the door (4) toward the rear of the vehicle body (1) (toward the right in the figure), as shown in Figure 6, the door (4) and the rail (1) As the roller (5) rotates, the rail receiving bracket (8)
It slides on the top and begins to move backward (to the right in the figure) with the stopper part α4 and slide lock (A). and,
When the slide lock wing moves with its side edge (20a) in pressure contact with the shaft side and reaches the rear side of the axis αη, it is rotated clockwise by the elasticity of the spring (29) as shown in FIG.

On the other hand, the arm lock tta provided on the rail receiving bracket (8) is urged to rotate counterclockwise by the elasticity of the spring αυ.
b) is the protrusion (15b) of the guide @4 guide counterfeit (15a)
As the stopper part I moves rearward together with the rail I as shown in FIG.
2b), the restriction is released, and the rear arm (7) rotates due to the elasticity of the spring αD, and when the engaging portion (12a) engages the protrusion (11) as shown in Fig. 7, the rear arm (7) completely prevents the reverse rotation. At the same time, the front arm (6) and the rear arm (7) maintain a 90-degree rotated state without being affected by the movement of the door (4) and rail I and the vibrations generated at that time, and the rail receiving bracket ( 8) is also fixed in position.On the other hand, 9
The front support arm (3a), which had rotated 0 degrees, rotates around the axis Qυ and (to) as the rail α begins to slide rearward, and when the rail I further slides, the rear support arm (3b )
The door (4) begins to rotate around the shaft (2) as a fulcrum and bends into a "<" shape as shown in Figures 2, 6, and 7, and then opens the door (4) rearward and slides on the rail α3. When you move it, the rear support arm (
3b) is rotated by 90 degrees, and the front support arm (3a) is aligned with the sliding direction of the rail (13), and the front support arm (3a) is rotated relative to the rear support arm (3b) as shown in Figure 2. When the rail (13) is slid until it forms an obtuse angle, the door (4) will be fully opened.

Next, when closing the door (4), when the door (4) is pushed forward (to the left in the drawing) outside the vehicle or pulled inside the vehicle, the rail 0 moves forward as the rollers rotate. , and both the stopper part I and the slide lock blade are displaced forward. Eventually, when the guide groove α [with] reaches the position where it passes through the protrusion a1, the slide lock blade moves forward while its side m (20a) abuts against the shaft, so that the spring (to) It is rotated counterclockwise against the elastic force.

During this time, the protrusion (15b) of the guide wall (15a) of the guide groove -111III portion abuts against the corner (12b) of the arm opening, and as the stopper portion I moves forward, the arm lock az is locked by the spring I. As the arm lock a is rotated clockwise against the elasticity of the protrusion (1 (I)
Figure 6). However, at this point, the guide wall has already reached the position where it contacts the side surface of the protrusion, so when the door (4) and rail α4 move forward, the rear arm (7) must be moved counterclockwise. Even if a force is applied to rotate the rear arm, the protrusion abuts against the guide wall and the rear arm (the force does not rotate and remains orthogonal).

(When the stopper part I is displaced forward together with the rail α, the first guide pin approaches the protrusion Q1, and the protrusion a value is determined by the counterclockwise rotation of the rear arm (7) from the guide wall US. During this time, the protrusion a1 is still in contact with slide lock 4 (1111t, t (20a)), but when the rear arm (7) begins to rotate counterclockwise, the lever (9) is also displaced. As the protrusion a1 is displaced outward along the rotation guide groove αe, the slide lock (1) rotates clockwise due to the elasticity of the spring 4, and eventually the notch blade engages with the pivot. At the same time, the protrusion of the stopper part I abuts against the axis αη, and in this state the rail (I
1 is prevented from sliding back and forth. During this time, the rear support arm (7) rotates counterclockwise from the state perpendicular to the rail 0 as shown in Figures 2 and 4, and the middle shaft of the support arm (3) The front support arm (6) and the rear support arm (7) are displaced in a V-shape, but when the rear support arm (7) reaches a state parallel to the vehicle body, the front support arm (6) and the rear support arm (7) are bent into a V-shape. The arm (6) is in a position perpendicular to the rail α. In this case, as mentioned above, the protrusion [stock] of the stopper part I abuts against the axis σnK of the rear arm (7), and the notch α of the slide lock (7) engages with the axis σnK of the rear arm (7), so that the rail tti Sliding is prevented, and the guide wall (15a
) is located at the corner (12) of the arm lock α.
b), the arm lock a'IJ is rotated clockwise against the elasticity of the spring (111), and the engaging portion (12a
) is removed from the protrusion, so it is possible to rotate the lever (9) and the protrusion θ due to the rotation of the rear arm (7), so the door (4) and rail αJ can be moved forward. The force that is trying to force the front arm (6) and the rear arm (
7) and the front support arm (3a) respectively.
It acts as a force to rotate counterclockwise around +1, and as the rear arm (7) moves, the lever (9) and the protrusion are also rotated counterclockwise, and the door (4) is rotated counterclockwise. pivots to close (Fig. 1).

Effects According to the present invention, the support of the door during opening and closing is carried out by the front support arm and the rear support arm, and the turning and sliding of the door are carried out by the front arm and the rear arm for positioning, so that they can be distinguished from each other. , the load of the door is not applied to the front arm or rear arm while the door is turning and sliding, and the door is supported by the front support arm near the center of gravity of the door. Since the load is not applied unevenly to the front support arm, the door turns and slides smoothly and can withstand long-term use. Also, while the door is being rotated by rotating the positioning front arm and rear arm to open the door, the notch of the slide lock and the protrusion of the stopper are engaged with the axis of the rear arm. Since the rail does not slide, the notch of the slide lock begins to come off the protrusion just before the rear arm completes its rotation together with the forearm, but the protrusion collides with the rotation guide 4 part of the guide wall. Therefore, even in this case, the rails will not slide. Furthermore, when the door finishes turning and begins to slide rearward, the engaging part of the arm lock engages with the protrusion that is integrated with the rear arm, preventing the front and rear arms from turning in the opposite direction. There is no risk of the door sliding back and forth or turning while sliding back and forth, and there is no risk of damaging the outside surface of the car body. to;f'l ++Q), the front arm and rear arm do not rotate due to the arm lock -).
The arm lock starts to come off the protrusion just before the sliding is finished and the robot starts turning.

As in the period from turning to sliding when opening the door, the protrusion collides with the trigger 4, so the lever and rear arm do not turn counterclockwise and the door slides forward. When the movement is finished and the movement is started, the rear arm's shaft and part collide with the axis of the rear arm, and at the same time the notch of the slide lock engages, preventing the rail from moving and allowing the rear arm to rotate in the opposite direction. Become. Therefore, the swing of the arm or door is distinguished from the sliding of the rail or door by the slide date, stopper part, arm lock, protrusion, protrusion of the guiding platform, etc., and the period between swing and sliding when opening and closing the door is differentiated. Even in this case, turning and sliding do not occur at the same time, so there is no risk of danger or damage to the outer surface of the vehicle body. Therefore, when the door is opened and closed, the turning displacement movement and the one-stroke displacement movement of the door and the rail are performed separately and reliably with moderation, and at the same time, the transfer of both movements is performed smoothly.

In addition, in the present invention, the door is supported by both the front support arm and the rear support arm, which are bent through the shaft.
Compared to conventional systems supported by positioning arms, the atata resistance is smaller and the load fluctuations on the support mechanism are smaller, resulting in a longer door opening distance.
Not only when the present invention is applied to side doors, but also when applied to the rear door of a car, the door opening can be fully utilized to allow people and cargo to move up and down smoothly. Compared to the conventional rotating type that is attached via a hinge, the door slides along the outside of the vehicle body to open and close, so the space required outside the vehicle body when opening and closing the door is small. Even in narrow parking lots or when other electrical objects or cargo are adjacent to the side of the vehicle, it is possible to open and close doors, lift people up and down, and load and unload cargo without any hindrance, so its range of use is wide. be.

[Brief explanation of the drawing]

The figure shows an example of the implementation of the present invention, and FIG. 1 is a side view of the driver's cab of an automobile equipped with the sliding door of the present invention.
The left door is removed and the right door is seen through. Figure 2 is an explanatory diagram of the operation of each arm, Figure 3 is a perspective view from inside the vehicle with the door pushed outward, and Figure 4 is an illustration of the operation of each arm.
The figures are a cross-sectional plan view taken along the line X-X of Fig. 1, Fig. 5 is a plan view of the cap with the door pivoted, and Fig. 6 is a plan view of the door in the pivoted state transitioning to sliding. Figure 7 is a plan view of the door with the door starting to slide, Figure 8 is a top view of the main kesasatsu shown in Figure 5 as seen from the passenger compartment side, and Figure 9 is the same view as in Figure 5. Y
-Yll is a vertical cross-sectional view. Code: 1...Car body 6b...
・・・・・・・・・Tip 2 ・・・・・・・・・
...Mounting bracket 7 Concave ridge arm 2
a・・・・・・・・・Dan section 7a...
・・・・・・・・・Base 3・・・・・・・・・・・・
・Support arm 7b・・・・・・・・・・・・ Tip
End 3a...Front support arm
8......-Role receiver°Bracket 3b
...... Rear support arm 9...
・・・・Song...shi Pa-3c・・・・・・・・・・・・
・Proximal end 10 ・・・・・・・・・・・・Protrusion
3d・・・・・・・・・・・・Tip 11
・・・・・・・・・・・・Spring 4・・・・・・
・・・・・・Door Ila...Song...
...-End 5...Bracket)
llb...Songs etc. End 5a...
・・・Inner surface 12 ・・・・・・・・・
...Arm lock 6...Forearm 12a...Engagement part 6a.
・・・・・・・・・・・・ Base end 12b・・・・
・・・・・・Corner Corner 13・・・・・・・・・・・・
...Shi-ru 2o...Decoy/Open side edge 13a
・・・・・・・・・・・・・・・・Rule wall
21 ...Curved axis... Export 13b...
...Extension part 22...Curve/curved axis 14...
・・・・・・・・・Stopper section 23 songs...songs...
Shaft 15...Guiding groove 24 Curved river shaft 15a...Guiding wall 25
・・・Song/curve axis 15L) ・・・・・・・・・・・・Tsu
Yamabe 26・Curve...Curve axis 15c...
...Aki Kaito 4N 27 songs both times・Lola 16・
......Turning guide* 28...Song interval/Axis 17...Axis 29/Song/Song/
・Spring 18...Protrusion 29a・
Between songs...-End 19...Notch
29b...Song...Other End 20...
・・Song・ Slide Lock August 1985 Inventor Jun Hayakawa

Claims (2)

[Claims] (1) A door support mechanism in which one end of a bendable support arm is pivoted to the vehicle body and the other end is pivoted to the door, and a positioning arm with one end pivoted to the vehicle body is pivoted to a rail receiving bracket. a sliding mechanism in which a rail attached to the door is slidably mounted on the rail receiving bracket;
A rotation prevention mechanism that prevents the arm from turning until the end of the rail sliding by an arm lock and a stopper part provided on the rail receiving bracket, and a slide lock provided on the stopper part, and a rotation prevention mechanism that prevents the rail from sliding until the end of the arm turning. A sliding door characterized by comprising a sliding prevention mechanism that prevents. (2) In the sliding door according to claim 1, the door support mechanism includes a bendable support arm (3) that is horizontally rotated around a mounting bracket (2) provided on the vehicle body (1). The rear arm (of the front arm (6) and the rear arm (7) is rotatably supported, and its tip is rotatably supported horizontally at the center of gravity of the door (4) via a bracket (5). 7
) is coaxially supported with the base end (3c) of the support arm (3),
Pivotally support the forearm (6) on the mounting bracket (2),
The turning mechanism has the tips (6b) and (7b) of the front arm (6) and the rear arm (7) pivoted on the rail receiving bracket (8), respectively, and the sliding mechanism is arranged horizontally inside the door (4). A fixed rail (13) is installed on the rail receiving bracket (8) so as to be slidable back and forth, and the rotation prevention mechanism is connected to the rear arm (7).
) has a projection (10) on the lever (9) connected to the tip (7b).
) and a spring (
The arm lock (12) that engages and disengages from the protrusion (10) is pivoted by the elastic force of the rail (11), and the sliding prevention mechanism is attached to the stopper part (1) via the extension part (13b) of the rail (13).
4), and the stopper portion (14) is provided with a rail (13).
) that passes through the protrusion (10) when the guide groove (15) slides.
) communicates with the guide groove (15), and when turning, the protrusion (10)
A turning guide groove (16) is formed to pass through the rail (13), and the rail (13) collides with the shaft (17) of the tip (7b) of the rear arm (7) on the sliding line of the rail (13) to allow the rail (13) to slide forward. A protrusion (18) is formed to restrict the movement of the rear arm (7), and a notch (18) is formed which engages and disengages from the shaft (17) of the rear arm (7) by the elasticity of the spring (29).
A slide lock (20) having a slide lock (19) is pivotally supported on a stopper part (14).