JP2580503Y2 - Sliding door swing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing device for a sliding door in vehicles such as trucks and van-type vehicles.

[0002]

2. Description of the Related Art In this type of sliding door swing device, an upper and lower door base is slidably provided along the upper and lower edges of a door opening of a body of a vehicle. It is provided so as to be able to move in parallel via a link mechanism called a four-bar link mechanism or a four-bar parallel link mechanism. For example, in the operation explanatory view of the link mechanism shown in FIG. 12, the doors 106 are provided on both door bases 108 so as to be able to move in parallel via a link mechanism 109 having a pair of front and rear crankshafts 110.
Each shaft portion 111, 113 of each crankshaft 110 is rotatably provided on the door 106 or the door base 108, respectively. 12A shows the door 106.
Is shifted to the outside position, and (b) is the closed state.

In such a sliding door swing device, the door 106 and the door base 108 are positioned on the same axis (so that the door 106 does not protrude outward beyond the door base 108 when the door 106 is closed). (See FIG. 12B). However, in this case, the following two problems occur. (1) When the door 106 is shifted from the closed state, if the door 106 and the door base 108 are located on the same axis, the rotational force of one crankshaft 110 is not easily transmitted to the other crankshaft 110. So door 1
06 cannot be shifted smoothly. (2) Dimensional error between two points of the door base 108, that is, the shaft portions 11 of the two crankshafts 110 on the door base mounting side.
Because the pitch error between the center points of 3 cannot be absorbed, door 1
06 Smoothness of shift movement (including reverse shift) is impaired.

As a conventional example which solves the above-mentioned problem (1),
There is a sliding door swing device shown in a side view in FIG. 13 and a schematic perspective view in FIG. As shown in FIG. 13, upper and lower door bases 208 are slidably provided along the upper and lower edges of a door opening 204 of a body 202 of a vehicle. As shown in FIGS. 13 and 14,
The door 206 is provided to be able to move in parallel to both door bases 208 via a link mechanism 209 having a pair of front and rear crankshafts 210. Each crankshaft 21
The respective 0 shaft portions are rotatably provided on the door 206 or the door base 208, respectively. Swing arms 214 are provided on the door mounting side shafts (attached to 211) of both crankshafts 210 toward the front (outward) of the door, respectively, and connecting rods 215 are provided at the ends of the two swing arms 214. Are rotatably connected to each other via connection pins (symbols omitted). Note that, as shown in FIG.
A handle 220 is attached to the 0 shaft portion 211.

Therefore, when the door 206 is shifted and opened or vice versa and closed, the rotational force of the front crankshaft 210 rotated by the handle 220 is moved by the swing arm 214 and the connecting rod 215. The transmission to the rear crankshaft 210 allows the door 206 to shift smoothly. In addition, connecting rod 215
Although not shown, a turnbuckle mechanism is provided to absorb a pitch error between the center points of the connection pins.

[0006]

According to the prior art,
Although the problem (1) is solved, the problem (2) still remains.
The shift movement of 06 becomes heavy. In addition, the swing arm 214
In addition, since the connecting rod 215 protrudes outside the door, not only the appearance is poor, but also there is a risk of interference with some articles.

[0007] The present invention has been made to solve the problems above mentioned, together with its objects can be performed smoothly shift movement of the door, the sliding door can be improved appearance and safety It is to provide a swing device.

[0008]

According to the present invention, there is provided a sliding door swing device according to the present invention , comprising: an upper and lower door base slidably provided along upper and lower edges of a door opening of a body of a vehicle; A door for opening and closing the door opening;
Outside the closed state of the doors with respect to the door bases
A pair of front and rear crankshafts that can move in parallel to the position
A swinging device for a sliding door , the door corresponding to the front and rear of the front and rear crankshafts.
Parallel to the shaft on the base mounting side, behind the door
The front and rear swing arms are fixed .
Each end of the connecting rod at each end of the
Pivotably connected, and the upper and lower door bases are
Of the side crankshaft on the side where the door base is mounted rotates
Front split half, which is provided, and the rear crank
The shaft part of the shaft on the door base mounting side is rotatably provided.
Divided into the rear half and the front half
Extend the split half and the rear split half in the sliding direction
It is connected in a contractible manner .

[0009]

According to the above means, the rotation force is transmitted between the two crankshafts of the link mechanism by the swing arm and the connecting rod. In addition, when the door base expands and contracts with the shift movement of the door, a dimensional error between two points of the door base, that is, a pitch error between central points of shaft portions of both crankshafts on the door base mounting side is absorbed. Further, since the swing arm and the connecting rod are arranged behind the door of the door base, they do not protrude and are exposed outside the door.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. Note this example, the vehicle, for example because those were conducted in a rear door of definitive all opening type slide door cargo truck having a box-type luggage compartment, the swing device will be described in conjunction with the full aperture type slide door. 5 shows the Ryakutai side view of a cargo truck, the vehicle 1 is a side of the body 2 with a cab 3, i.e. the luggage compartment side, a rectangular door opening 4 which opens over substantially the entire surface of the side surface Is provided. The door opening 4 has a sliding door type front door 5.
And a rear door 6. The two doors 5 and 6 are substantially flush with the side surface of the body and close the door opening 4.

The full-opening type sliding door basically has a total of four opening / closing states shown in FIGS. 6A to 6D by opening and closing the front door 5 and the rear door 6. 6 (a) to 6 (d) show the respective open / closed states in a schematic body plan view. FIG. 6 (a) shows a fully closed state in which both doors 5 and 6 are closed.
(B) is a rear half open state with the rear door 6 opened, (c) is a front half open state with the front door 5 opened, and (d) is a double door.
This is a fully open state where 5 and 6 are opened.

Next, a configuration relating to the sliding doors of the doors 5 and 6 will be described. First, before describing the structure of assembling the two doors 5 and 6 to the body 2, the rear door 6
Will be described from the viewpoint of the swing device and the structure attached thereto. The rear door 6 has an exploded vertical sectional view of FIG.
As shown in the perspective view of FIG. 2, upper and lower door bases 8 are provided via a link mechanism 9 so as to be able to move parallel to the front and back. The rear door 6 is in a shifted state in which the position shown by the solid line in FIG. 4 is shifted to the outside position, and the position shown by the two-dot chain line in FIG. 4 is in the closed state.

The link mechanism 9 is a so-called four-bar parallel link mechanism, and is mainly composed of a pair of front and rear crankshafts 10. Each of the crankshafts 10 is provided with a central shaft portion 1 rotatably provided on the rear door 6.
An eccentric shaft portion 13 eccentric to both ends of a central shaft portion 11 via upper and lower arms 12 and rotatably provided on each door base 8 is provided in series. The central shaft 11 corresponds to the shaft on the door mounting side, and the eccentric shaft 13 corresponds to the shaft on the door base mounting.

FIG. 1 is a diagram for explaining the operation of the link mechanism 9, wherein FIG.
(B) is the closed state. FIG. 9A is a plan view of a front portion of the rear door 6, and FIG. 9B is a front view thereof. The position shown by the solid line in FIG. 9 is the shift state of the rear door 6, and the position shown by the two-dot chain line in FIG. 9 is the closed state. As shown in FIGS. 1 and 9, one end of a swing arm 14 is fixed to the upper end of the upper eccentric shaft 13 of each crankshaft 10 projecting from the upper surface of the upper door base 8. The two swing arms 14 are directed toward the back of the door so as to be parallel to each other. At the tip of both swing arms 14,
Both ends of the connecting rod 15 are
Are rotatably connected via a.

Therefore, the link mechanism 9 shifts the rear door 6 from the state shown in FIG. 1B to the state shown in FIG. 1A, and conversely, shifts the rear door 6 from the state shown in FIG. When the vehicle is shifted in the reverse direction, the rear door 6 is moved parallel to the door base 8. At this time, the swing arm 14 and the connecting rod 15 transmit the rotational force between the crankshafts 10 . When the rear door 6 is closed (see FIG. 1B), the rear door 6 and the door base 8 are located on the same axis, that is, the shaft portions 11 and 13 of the crankshaft 10 are located on the same line.

The link mechanism 9 is shown in an exploded perspective view together with the front door 5 and the rear door 6 in FIG.
The crankshaft 10 is mounted on the central shaft 1
1 is divided into two parts, each of the divided parts is inserted into the rear door 6 from above and below, and the same is inserted with a square hole-shaped recessed part 17 and a prismatic projection 18 provided at the butting part of each part. It is rotatably connected.

The front crankshaft 10 incorporates a torque transmission handle 20 between the divided parts. FIG. 10A is a perspective view of the torque transmission handle, and FIG. 10B is a cross-sectional view thereof. In FIG. 10, a torque transmission handle 20 is connected so as to be rotatable in the same manner with a butt portion of each divided portion of the front crankshaft 10 with an insertion relationship between a square hole-shaped recess 17 and a prismatic projection 18. It has a tubular portion 21, a projecting piece 22 projecting outside the connecting tubular portion 21, and a handle lever 24 rotatably attached to the projecting piece 22 with a pin 23, and is opened on the outer surface of the rear door 6. It is arranged in the window 6a.

The torque transmission handle 20 is shown in FIG.
1B and 1B correspond to the shift state of the rear door 6 (see FIG. 1A). In this state, the handle lever 24 is pivoted around the pin 23 as shown in FIG.
In FIG. 10B, it is rotated counterclockwise to protrude (see each two-dot chain line A in FIGS. 10A and 10B), and is further pushed into the window 6a of the rear door 6 (FIG. 10).
(See the two-dot chain line B in (a).)
As shown in FIG. 5, the power is transmitted from the front crankshaft 10 and the swing arm 14 to the rear crankshaft 10 via the connecting rod 15, and the rear door 6 is closed. On the contrary, the handle lever 24 is moved to the window 6
a to protrude from the a.
As shown in (a), the front crankshaft 10,
Then, the power is transmitted from the swing arm 14 to the rear crankshaft 10 via the connecting rod 15, and the rear door 6 is shifted to the outside position.

As shown in FIG. 1 and FIG. 7, the upper and lower door bases 8
The front split half 8a and the rear split half 8b each having a 0 are engaged so as to be able to expand and contract with a square hole-like recess 26 and a prismatic protrusion 27 provided at the butting part of each part. Have been. The engaging portions of the divided halves 8a and 8b are shown in the explanatory view of FIG. 2 (a) is an exploded perspective view, (b) is a longitudinal sectional view, (c) is a transverse sectional view, and (d)
Shows cross-sectional views taken along the line AA of FIG. FIG.
As shown in the figure, the concave portions 26 and the protruding portions 27 of the two divided halves 8a and 8b restrict rotation around the axis in the insertion direction and movement in the vertical and horizontal directions intersecting the axis.
It is slidably engaged in the insertion direction. For this reason, the door base 8 can expand and contract according to the pitch error between the center points of the shaft portions 13 on the door base mounting side of the two crankshafts 10 due to the shift movement of the rear door 6.

Next, a structure for assembling the two doors 5 and 6 to the body 2 will be described. In FIG. 4, first and second groove-shaped first guide rails 30 which are open outward are respectively laid on the upper and lower edges of the door opening 4 of the body 2 over substantially the entire length. The first guide rollers 31 rotatably engaged with the upper and lower first guide rails 30 are rotatably supported on the rear surfaces of the upper and lower door bases 8 by two shafts (reference numerals omitted). ing. The assembled state of the guide roller is shown in the vertical sectional view of the full-opening slide door of FIG.

As shown in FIGS. 4 and 7, upper and lower rail members 32 are provided on the upper and lower edges of the front door 5 so as to be substantially vertically symmetrical. Each rail member 32 is integrally formed with a pair of second and third guide rails 33 and 36 having a groove shape parallel to each other. The groove opening of the second guide rail 33 is directed outward, and the groove opening of the third guide rail 36 is directed inward. The two rail members 32 extend toward the rear of the front door 5. The upper rail member 32 is adjacent to the lower side of the upper first guide rail 30, and the lower rail member 32 is adjacent to the upper side of the lower first guide rail 30.

The second guide rollers 34, which are rollably engaged with the upper and lower second guide rails 33, are rotatable on the back surfaces of the upper and lower door bases 8 by two shafts (symbols omitted). (See FIG. 3).
The first and second guide rollers 3 of the door base 8 are provided.
The relationship between the guide rails 1, 34 and the corresponding guide rails 30, 33 is shown in a schematic side view in FIG.

In FIG. 3, a third guide roller 37 is rotatably engaged with upper and lower third guide rails 36.
Are rotatably supported on the upper and lower edges of the door opening 4 by two shafts (reference numerals omitted). Third guide roller 37 with respect to third guide rail 36
11 is additionally shown in FIG. That is, when the front door 5 is closed, the third guide roller 37 is at the position shown by a dotted line in FIG. 11 when the front door 5 is closed, and when the front door 5 is opened, it is shown by a two-dot chain line in FIG. Position relative to the position. Each of the guide rollers 31, 34, 37 is provided with the corresponding guide rail 30, 3,
It is prevented from coming off by the flange portions at the open ends of 3, 36.

A corner member 39 is mounted on the front edge of the front door 5 as shown in FIGS. Although not shown, the front door 5 is provided with a door lock device and a door handle similar to those used for a general slide door.
Although not shown, the rear door 6 is engaged with the body 2 by a reverse shift operation, and the engagement means is disengaged by the shift operation, for example, an engagement pin on the door side and an engagement on the body side. Means are provided for preventing sliding of the door 6 by engagement with the hole. The use position of the rearview mirror 41 by an electric motor (see FIG. 6A)
When the front door 5 is opened, the rearview mirror 41 is set to the storage position by using an electrically retractable rearview mirror that can be changed to the storage position (see FIGS. 6C and 6D). Interference with the front door 5 can be avoided.

Next, the opening and closing operation of the above-described full-opening type slide door for a vehicle will be described with reference to FIGS. In the fully closed state shown in FIG. 6A, the first guide rail 3 is shifted by shifting the rear door 6 to the outside position via the link mechanism 9 and sliding the rear door 6 forward.
The rear door 6 almost overlaps the outside of the front door 5 by the rolling of the first guide roller 31 with respect to the first guide roller 31 and the rolling of the second guide roller 34 with respect to the second guide rail 33, and the rear half of the door opening 4. Is opened in the rear half-open state (see FIG. 6B).

In the fully closed state shown in FIG. 6A, the front door 5 is slid forward, so that the third guide roller 37 rolls with respect to the third guide rail 36, thereby causing the front door 5 to slide. Is located in the dead space on the side of the body 2 of the vehicle 1 (that is, the side of the cab), and the front half of the door opening 4 is in the front half-open state (see FIG. 6C). In this state, the front door 5 is supported by the engagement between the third guide roller 37 and the third guide rail 36. With the opening of the front door 5, the second guide rail 33 moves forward with the rolling of the second guide roller 34, and finally comes off the guide roller 34.

In the rear half-open state shown in FIG. 6B, by sliding the doors 5 and 6 forward, the third guide roller 37 rolls with respect to the third guide rail 36 so that both the doors 5 and 6 are rotated. The doors 5 and 6 are located in the dead space on the side surface of the body 2 of the vehicle 1, and the door opening 4 is fully opened (see FIG. 6D). In this state, the front door 5 is supported by the engagement of the third guide roller 37 and the third guide rail 36 similarly to the front half-open state, and the rear door 6 is It is supported by the engagement of the two guide rollers 34. With the opening of both doors 5 and 6,
The first guide roller 31 with respect to the first guide rail 30
Rolls forward and eventually comes off its guide rail 30.

In the front half-open state shown in FIG. 6C, the rear door 6 is opened similarly to the rear half-open state. Accordingly, the second guide roller 34 is engaged with the second guide rail 33. Thereafter, by further sliding the rear door 6 forward, the second guide rail 3
Due to the rolling of the second guide roller 34 with respect to the front door 3, the rear door 6 substantially overlaps the outside of the front door 5, and the full open state is obtained as described above (see FIG. 6D). Each of the doors 5, 6 opened as described above is closed by the reverse procedure of opening.

According to the full-opening type sliding door for a vehicle, both doors 5 and 6 are positioned in a dead space on the side surface of the body 2 of the vehicle 1 (that is, the side surface of the cab) in the sliding door type, and the door opening 4 is fully opened. Can be done. Therefore, it is possible to easily load and unload long-sized items, and also to load and unload the entire width of the door opening 4 without reopening the doors 5 and 6.

Further, according to the swing device for the rear door 6, the rotational force can be transmitted between the two crankshafts of the link mechanism 9 by the swing arm 14 and the connecting rod 15. Further, the door base 8 expands and contracts with the shift movement of the rear door 6, so that a pitch error between the center points of the shaft portions 13 of the two crankshafts 10 on the door base mounting side, that is, a dimensional error between two points of the door base 8 is reduced. Absorbed. The cooperation between the effect of transmitting the rotational force of the crankshaft and the effect of absorbing the dimensional error of the door base improves the smoothness of the shift movement related to the opening and closing of the rear door 6.

Further, since the swing arm 14 and the connecting rod 15 are arranged behind the door of the door base 8, they do not protrude and are exposed to the outside of the door unlike the conventional example. For this reason, the appearance of the outside of the door is improved, and the danger due to the protrusion can be avoided, thereby improving the safety. Also,
This can be said to prevent the link mechanism 9 from being operated by improper means, and is also useful for preventing theft.

[0032]

According to the present invention, the rotational force can be transmitted between the two crankshafts of the link mechanism, and
By absorbing the dimensional error between the two points of the door base, the smoothness of the shift movement involved in opening and closing the door can be improved, and since the swing arm and the connecting rod do not protrude and are exposed outside the door, And the danger due to the protrusion can be avoided, and the safety is improved.

[Brief description of the drawings]

FIG. 1 is an operation explanatory view of a link mechanism.

FIG. 2 is an explanatory view showing an engagement portion of a divided half of a door base.

FIG. 3 is a vertical sectional view of a full-opening slide door.

FIG. 4 is an exploded longitudinal sectional view showing a full-opening slide door.

FIG. 5 is a schematic side view showing a vehicle.

FIG. 6 is an explanatory diagram showing an open / closed state of a full-opening slide door.

FIG. 7 is an exploded perspective view showing a front door and a rear door.

FIG. 8 is a perspective view showing a rear door.

FIG. 9 is an explanatory diagram showing an upper part of a front end of a rear door.

FIG. 10 is an explanatory view showing a torque transmission handle.

FIG. 11 is a schematic side view showing a relationship between a guide rail and a guide roller.

FIG. 12 is an operation explanatory view of a link mechanism showing a conventional example.

FIG. 13 is a side view of a slide door showing a conventional example.

14 is a schematic perspective view of the slide door of FIG.

[Explanation of symbols]

 Reference Signs List 6 door 8 door base 8a, 8b split half body 9 link mechanism 10 crankshaft 13 shaft 14 swinging arm 15 connecting rod

Claims (1)

(57) [Scope of request for utility model registration] 1. An upper and lower door base slidably provided along upper and lower edges of a door opening of a body of a vehicle, a door for opening and closing the door opening, and closing the door with respect to the two door bases. Outside
A pair of front and rear crankshafts that can move in parallel to the position
A swinging device for a sliding door, wherein each door housing corresponding to the front and rear of the front and rear crankshafts is provided.
Parallel to the shaft on the side where the base is attached, behind the door.
The front and rear swing arms are fixed, and the connecting
Doors are rotatably connected to each other, and the upper and lower door bases are connected to the front crankshaft.
The front part where the shaft part on the door base mounting side is rotatably provided
Split half and door base of the rear crankshaft
With the rear split half where the shaft on the mounting side is rotatably provided
Each is divided, and the divided front half and rear half are mutually crossed.
Sliding door swing device connected to be able to expand and contract in the riding direction .