JP2565779Y2 - Opening / closing arm support device for multiple hangers in an arm opening / closing type article suspension device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an arm opening / closing type article suspending device having a hanger for holding articles by an opening / closing arm suspended from a traveling carrier so as to be able to move up and down. It relates to a device for supporting.

[0002]

2. Description of the Related Art Conventionally, an arm-opening / closing type article suspending apparatus is provided, for example, on a carrier (not shown) for traveling on a transport line and transporting articles so as to be able to move up and down. in this case,
The arm opening / closing type article suspending device is provided with several types of hangers so that articles having different shapes and sizes can be suspended for the purpose of improving the transport efficiency of the entire transport line. The open / close arms attached to each hanger open and close with each other as a pair of opposing arms. Each conveyed article is held by the opening and closing operation of one or more sets of opening and closing arms.

[0003]

However, in such an arm-opening / closing type article suspending device, when the number of hangers is increased in order to increase the types of articles to be suspended, the opening / closing arms of each hanger are supported. The number of supporting shafts
There is a problem that the support mechanism of the opening / closing arm becomes complicated.

An object of the present invention is to provide an opening / closing arm support device in which the number of support shafts for supporting the opening / closing arms does not increase even when the opening / closing arms of a plurality of hangers are independently opened / closed for each hanger.

[0005]

According to a first aspect of the present invention, there is provided an arm-opening / closing type article provided with a hanger having a pair of opposed opening / closing arms which are hung up and down on a traveling carrier to hold articles to be conveyed. In the hanging device, a first rotation support shaft and a second rotation support shaft are separated and arranged in parallel on a frame of the article suspension device so as to be rotatable, and one arm of a pair of opposing open / close arms is attached to the first arm. A first arm in which the other arm is rotatably loosely fitted to the rotation support shaft and the other arm to the second rotation support shaft, respectively;
A hanger, and a second hanger in which one arm of a pair of opposing open / close arms is attached to the first rotation support shaft, and the other arm is integrally attached to the second rotation support shaft, respectively.
Link levers rotatably supported on the first rotation support shaft and the second rotation support shaft, respectively, are rotationally driven in opposite directions to open and close the opening / closing arm of the first hanger integrated with the respective link levers. A first drive mechanism for operating and a second drive mechanism for opening and closing the open / close arm of the second hanger are separately provided on the frame, and a first hanger on the first rotation support shaft and the second rotation support shaft is provided. 3. An open / close arm support device for a plurality of hangers for independently opening and closing the open / close arm of the second hanger and the open / close arm of the second hanger.
The invention of the above is an arm opening / closing type article suspension device provided with a hanger having a pair of opposed opening / closing arms which are hung up and down on a traveling carrier and hold a transported article, wherein a frame of the article suspension device has The first fixed support shaft and the second fixed support shaft are spaced apart and arranged in parallel from each other, and one of the pair of opposing open / close arms is set to the first fixed support shaft, and the other arm is set to the second fixed support shaft. , The first freely rotatably fitted
A first hanger and a second hanger, wherein a first drive mechanism for opening and closing the opening and closing arm of the first hanger and a second driving mechanism for opening and closing the opening and closing arm of the second hanger are separately provided on the frame; The above problem has been solved by an open / close arm support device for a plurality of hangers for independently opening and closing the open / close arms of the first and second hangers on the support shaft and the second fixed support shaft.

[0006]

According to the first aspect of the present invention, one of the pair of opposing open / close arms of the first and second hangers is attached to the first rotation support shaft, and the other arm is attached to the second rotation support shaft. ing. That is, one of the opening and closing arms of the first and second hangers is supported by the first rotation support shaft, and the other of the opening and closing arms of the first and second hangers is supported by the second rotation support shaft. A pair of open / close arms of the first hanger are rotatably fitted on the first and second rotation support shafts and are simultaneously opened / closed and rotated by the first drive mechanism. A pair of open / close arms of the second hanger are integrally attached to the first and second rotation support shafts, and are rotated by the second drive mechanism together with these support shafts to open and close.

In the present invention, one of the pair of opposing open / close arms of the first and second hangers is on the first fixed support shaft, and the other arm is on the second fixed support shaft. Each is loosely fitted loosely. That is, one and the other of the opening and closing arms of the first and second hangers are rotatably supported on the first and second fixed support shafts, respectively.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. First, an embodiment corresponding to the invention of claim 1 will be described with reference to FIGS. The arm opening / closing type article suspending device 20 in which the support device for the opening / closing arm of the hanger is incorporated is suspended by, for example, a hanging bracket 21 (see FIGS. 2 and 3) on a carrier (not shown) running on an automobile assembly line. It is a device that lifts and lowers and holds an automobile body (not shown) from below. Each part of the arm opening / closing type article suspending device 20 is incorporated in a frame 22 framed in a square shape by a pipe having a square cross section. The frame 22 is a portion that is suspended from the carrier by the suspension fitting 21. The frame 22 is provided with a first hanger mechanism 41 and a second hanger mechanism 71.

The first hanger mechanism 41 includes a first motor 42
And first hangers 40 and 43. The first motor 42 is installed on the upper surface of the frame 22. First
The hangers 40, 43 are a pair of opposing left opening / closing arms 4
4 and 45 and right and left opening / closing arms 64 and 65. In this specification, “left” and “right” refer to FIG.
Is referred to as a reference.

The torque of the first motor 42 is transmitted to a first intermediate shaft 48 via a first chain 46 and a first sprocket 47. The first motor 42, the first chain 46, and the first sprocket 47 form a first drive mechanism. The first intermediate shaft 48 includes bearings 49, 4
9 rotatably supported on the upper surface of the frame 22.

Two link plates 50 and 51 are integrally attached to the first intermediate shaft 48. The link plates 50 and 51 are formed by combining two plate members.
Both ends of each of the link plates 50 and 51 are separated from and parallel to the frame 22 by left and right connection pins 52 and 53, respectively, on the first rotation support shaft 24 and the second rotation support shaft 25.
Left and right link levers 54, 55, 56, 57. Left and right link levers 54, 55, 56, 5
7 is also formed by combining two plate members.

The first and second rotation support shafts 24, 25 are rotatably supported on the lower surface of the frame 22 by bearings 58, 58, 59, 59. Left and right link levers 54,
55, 56, 57 are the first and second rotation support shafts 24, 25
The upper bearings 60, 61, 62, 63 are provided.
Bearings 60, 61, 62, 63 supporting the left and right link levers 54, 55, 56, 57 have opening / closing arms 44, 4 on the left and right sides of the first hangers 40, 43 facing downward.
5, 64, 65 are integrally mounted.

The first intermediate shaft 48 has a first hanger 40,
43, left and right opening / closing arms 44, 45, 64,
A pair of first opening and closing strikers 66 and 67 for setting a rotation range of 65 are provided. First open / close limit switches 68 and 69 corresponding to the pair of first open / close strikers 66 and 67 are attached to the main beam of the frame 22. The rotation range of the left and right opening / closing arms 44, 45, 64, 65 of the first hangers 40, 43 is set by the angle α formed by the pair of first opening / closing strikers 66, 67.

The second hanger mechanism 71 includes a second motor 72
And the second hangers 70 and 73. The second motor 72 is installed on the upper surface of the frame 22. Second
The hangers 70 and 73 are a pair of opposing left opening / closing arms 7.
4 and 75 and right and left open / close arms 94 and 95.

The torque of the second motor 72 is transmitted to a second intermediate shaft 78 (see FIG. 3) via a second chain 76 and a second sprocket 77. Second motor 7
2, the second chain 76, and the second sprocket 77 constitute a second drive mechanism provided separately from the first drive mechanism. The second intermediate shaft 78 is connected to the auxiliary beams 26, 2 of the frame 22.
7 and rotatably supported by the frame 22 by bearings 32 and 32. This second
The intermediate shaft 78 penetrates the main beam 28 as shown in FIG. One link plate 80 is provided on the second intermediate shaft 78.
Are attached integrally. The link plate 80 is formed by combining two plate members.

Both ends of the link plate 80 are connected to two left and right link levers 84 and 85 on the first rotation support shaft 24 and the second rotation support shaft 25 by left and right connection pins 82 and 83, respectively. The left and right link levers 84, 85 are also formed by combining two plate members. The left and right link levers 84 and 85 are provided integrally on the left and right rotation shafts 24 and 25, respectively. First rotation support shaft 24 and second rotation support shaft 25
, The left and right arms 75 and 95 of the opening / closing arms of the second hangers 70 and 73 are integrally attached downward.

The first rotation support shaft 24 has a second hanger 7
Second opening and closing strikers 96 and 97 for setting the rotation range of the open / close arms 74, 75, 94 and 95 of 0, 73 are provided. The second opening and closing limit switches 98 and 99 corresponding to the second opening and closing strikers 96 and 97 are attached to the auxiliary beams 26 and 27 of the frame 22. The opening / closing arms 74, 75, 75 of the second hangers 70, 73 depend on the angle β formed by the second opening / closing strikers 96, 97.
94 and 95 rotation ranges are set.

The first and second hangers 40, 43, 7
0,73 open / close arms 44,45,64,65,74,
As shown in FIG. 5, the intervals when 75, 94, 95 are closed are L1, L2, and the first hangers 40, 43
Arms 44, 45, 64, 65 of the open / close arms
Is set smaller than the interval L2 between the opposing arms 74, 75, 94, 95 of the open / close arms of the second hangers 70, 73, and the first and the second are set to be within the interval L2.
The relative position of each opening / closing arm of the second hanger is determined. Therefore, the second hangers 70 and 73 can hold a wider vehicle body than the first hangers 40 and 43.

Next, the operation will be described. First, the operation when the first hanger 40, 43 holds the vehicle body will be described. The article suspending device 20 moves by traveling of the carrier. When the carrier stops just above the car body, the article suspension device 20 is lowered. The left and right opening / closing arms 44, 45 of the first hangers 40, 43,
64 and 65 must rotate in the opening operation direction from the position of the solid line to the position of the imaginary line as shown in FIGS. .

The left and right opening / closing arms 44, 45, 64, 65 of the first hangers 40, 43 are opened in the following operation order. First, the first motor 42 is rotated, and the torque of the first motor 42 is transmitted to the first intermediate shaft 48 by the first chain 46 and the first sprocket 47. By the rotation of the first intermediate shaft 48, the link plates 50 and 51 are rotated clockwise in FIG. Note that FIG. 10 is a schematic diagram shown for easy understanding of the configuration of the opening / closing mechanism of the opening / closing arm, and the shapes of components, the intervals between components, and the like are slightly different from those in other drawings.

When the link plates 50, 51 rotate to the right, the left and right link levers 54, 55, 56, 57 are rotated by the left and right connecting pins 52, 53 in mutually opposite directions. Accordingly, the first hanger 4
The open / close arms 44, 45, 64, 65 of 0, 43 open.
When the opening / closing arms 44, 45, 64, 65 open to a predetermined angle, the first opening striker 66 on the first intermediate shaft 48 contacts the first opening limit switch 68, and the first motor 42
Is stopped. Thereby, the open / close arms 44, 4
5, 64 and 65 stop while being opened at a predetermined angle.

The article suspension device 20 continues to descend, and the opening / closing arms 44, 45, 64, 65 of the first hangers 40, 43.
Is stopped when the lower end of the vehicle falls below the lower surface of the vehicle body. During this time, the opening / closing arms 74, 75, 94, 95 of the second hangers 70, 73 remain closed, but the width of the automobile body is reduced to the second hangers 70, 73 (FIG. 5).
L2) of opening and closing arms 74, 75, 94, 95
The opening and closing arms 7 of the second hangers 70 and 73 are narrower.
4,75,94,95 do not come into contact with the car body.

When the first motor 42 is rotated reversely after the lowering of the article suspending device 20 is stopped, the first intermediate shaft 4
8. The first and second rotation support shafts 24 and 25 are also rotated in the opposite directions to rotate in opposite directions, and the opening / closing arms 44, 45, 64 and 65 of the first hangers 40 and 43 start the closing operation. .
With this closing operation, the opening / closing arms 44, 45, 64, 6
The lower end of 5 enters the lower surface of the car body. When the opening / closing arms 44, 45, 64, 65 are closed, the first closing striker 67 on the first intermediate shaft 48 (see FIG. 6) comes into contact with the first closing limit switch 69, and the first motor 42 stops. Let me do. Thereby, the first hanger 40, 43
The open / close arms 44, 45, 64, and 65 are closed to be in the state shown by the solid line in FIGS.

Thereafter, the article suspending device 20 is raised, and the opening / closing arms 44, 45, 64, 65 suspend the vehicle body from below. Finally, the article suspending device 20 suspends the vehicle body and is carried by the carrier to the next step.

Next, the operation of the second hanger 70, 73 for suspending different types of vehicle bodies will be described. The second hangers 70, 73 are the first hangers 40, 4
It is designed to suspend an automobile body wider than three. For this reason, the opening / closing arm 4 of the first hanger 40, 43
4, 45, 64, 65 must be open while the second hanger 70, 73 is hanging the vehicle body. Opening / closing arms 44, 4 of first hangers 40, 43
5, 64 and 65 are opened by the first motor 4 as described above.
2 is performed.

Opening / closing arm 7 of second hanger 70, 73
4, 75, 94 and 95 are opened in the following operation order. The article suspending device 20 moves by traveling of the carrier. When the carrier stops just above the car body, the article suspension device 20 is lowered. Next, the second motor 7
2 to rotate the second chain 76 and the second sprocket 7
7, the torque of the second motor 72 is transmitted to the second intermediate shaft 78. By the rotation of the second intermediate shaft 78, the link plate 80 is rotated clockwise in FIG.

When the link plate 80 is rotated clockwise, the left and right link levers are rotated inwardly by the left and right connecting pins 82 and 83 in mutually opposite directions. Accordingly, the opening / closing arm 7 of the second hanger 70, 73
4,75,94,95 open. Opening and closing arms 74, 75,
When 94 and 95 are opened to a predetermined angle, the first rotation support shaft 2
4, the second opening striker 96 contacts the second opening limit switch 98, and the second motor 72 is stopped.
As a result, the opening / closing arms 74, 75, 94, and 95 are stopped while being opened at a predetermined angle.

The article suspending device 20 continues to descend, and the open / close arms 74, 75, 94, 95 of the second hangers 70, 73.
Is stopped when the lower end of the vehicle falls below the lower surface of the vehicle body. During this time, the opening / closing arms 44, 45, 64, 65 of the first hangers 40, 43 are already open, so that the opening / closing arms 44, 45, 64,
There is no such thing as 65 coming into contact with the car body.

When the second motor 72 is rotated in the reverse direction after the lowering of the article suspension device 20 is stopped, the second intermediate shaft 7
8. The first and second rotation support shafts 24 and 25 are also rotated in opposite directions to rotate in opposite directions, and the opening / closing arms 74, 75, 94 and 95 of the second hangers 70 and 73 start the closing operation. .
With this closing operation, the opening / closing arms 74, 75, 94, 9
The lower end of 5 enters the lower surface of the car body. When the opening / closing arms 74, 75, 94, 95 are closed to some extent, the second closing striker 97 on the first rotation support shaft 24 comes into contact with the second closing limit switch 99, and the second motor 72 is stopped. Thereby, the second hanger 70, 73
The open / close arms 74, 75, 94, and 95 are closed to be in the state shown by the solid line in FIGS.

Thereafter, the article suspending device 20 is raised, and the left and right opening / closing arms 74, 75, 94, 95
Lifts the car body from below. Finally, the article suspending device 20 suspends the vehicle body and is carried by the carrier to the next step.

Next, an embodiment corresponding to the invention of claim 2 will be described with reference to FIGS. In addition, in the embodiment shown in FIGS. 11 to 13, the same structure as the embodiment shown in FIGS. 1 to 10 is denoted by adding 1 to the head of the reference numerals in FIGS. Description is omitted.

The first and second fixed support shafts 124 and 125 in FIGS. 11 to 13 are fixed to the frame 122 so as to be spaced apart in parallel. Second intermediate shaft 178 (see FIG. 12)
Are mounted on the frame 122 by bearings 132 and 132 provided on both sides of the frame 122 through the frame 122.
It is supported rotatably. In the second intermediate shaft 178,
Three link plates 201, 202, 203 are integrally mounted. Link plates 201, 202, 2
03 is formed by combining two plate members.

The link plates 201 and 203 on both sides are
The first fixed shaft 124 is fixed by the left connection pins 182 and 182.
The center link plate 202 is connected to the right link lever 185 on the second fixed shaft 125 by the right connection pin 183 to the upper two left link levers 184 and 186, respectively. Left and right link levers 184, 186
185 is also formed by combining two plate members. The left link levers 184, 186 are rotatably mounted on the first fixed shaft 124.

The right link lever 185 is connected to the cylindrical bearing 204
, And is rotatably mounted on the second fixed shaft 125. Left link levers 184 and 186 and cylindrical bearing 204
The left and right arms 17 and 194 of the opening / closing arms of the second hangers 170 and 173 respectively face downward.
5,195 are integrally mounted.

The left link lever 184 has opening / closing arms 174, 175, 194 and 274 of the second hangers 170 and 173.
A pair of second opening and closing strikers 196 and 197 for setting a rotation range of 195 are provided. The frame 122 is provided with second open / close limit switches 198 and 199 corresponding to the pair of second open / close strikers 196 and 197. A pair of second opening and closing strikers 19
6, 197, the second hanger 170,
The rotation range of the open / close arms 174, 175, 194, 195 of 173 is set.

Next, the operation will be described. First hanger 14
0,143 opening / closing arms 144,145,164,16
The first and second fixed shafts 12 are driven by a first motor 142.
4,125 to perform opening and closing operations. The rotational force of the first motor 142 is the first chain 146, the first
Sprocket 147, first intermediate shaft 148, link plates 150, 151, connection pins 152, 152, 153,
It is transmitted to the opening / closing arms 144, 145, 164, 165 via the left and right link levers 154, 156, 155, 157.

The open / close arms 174, 175, 194, 195 of the second hangers 170, 173 are connected to the second motor 172.
, And is rotated on the first and second fixed shafts 124 and 125 to perform opening and closing operations. The rotation force of the second motor 172 is controlled by the second chain 176, the second sprocket 177, the second intermediate shaft 178, the link plates 201, 202, and 20.
3, transmitted to the open / close arms 174, 175, 194, 195 via the connection pins 182, 182, 183, the left and right link levers 184, 186, 185 and the cylindrical bearing 204.

Opening / closing arms 174, 175, 194, 19
The stop when the 5 is opened and the stop when the 5 are closed are performed by the second open / close strikers 196 and 197 integrated with the left link levers 184 and 186, respectively.
8,199.

[0039]

According to the first aspect of the present invention, one of a pair of open / close arms of the first hanger is rotatably provided on the first rotary support shaft and the other arm is rotatably provided on the second rotary support shaft. One of the pair of open / close arms of the second hanger facing each other is provided integrally with the first rotation support shaft and the other arm is provided integrally with the second rotation support shaft. One of a pair of open / close arms of the two hangers is coaxially supported, and the first rotation support shaft has the first and second arms.
Since the other of the pair of opposing opening / closing arms of the second hanger is coaxially mounted, the respective opening / closing arms of a plurality of hangers for respectively suspending articles of different shapes are independently provided by a driving mechanism provided separately. The opening and closing arm support mechanism for opening and closing can be simplified. According to the invention of claim 2, one of the pair of opposing opening / closing arms of the first and second hangers is rotatably provided on the first fixed support shaft and the other arm is rotatably provided on the second fixed support shaft. By supporting one and the other arms of the opening and closing arms of the first and second hangers on the respective fixed support shafts, the respective opening and closing arms of a plurality of hangers respectively suspending articles of different shapes are respectively provided. Since the opening and closing operation can be performed independently by a separately provided driving mechanism, the opening and closing arm support mechanism can be simplified.

[Brief description of the drawings]

FIG. 1 is a plan view of an arm opening / closing type article suspension device in which a hanger opening / closing arm support device of the present invention is incorporated.

FIG. 2 is a front view of FIG.

FIG. 3 is a sectional view taken along arrow 3-3 in FIG.

FIG. 4 is a sectional view taken along arrow 4-4 in FIG.

FIG. 5 is a view taken in the direction of arrow 5-5 in FIG. 2;

FIG. 6 is a view of the striker 67 in FIG. 1 as viewed from the near side in FIG. 1;

FIG. 7 is a view of the striker 66 in FIG. 1 as viewed from the near side in FIG. 1;

FIG. 8 is a view of the striker 97 in FIG. 1 as viewed from the near side in FIG. 1;

9 is a view of the striker 96 in FIG. 1 as viewed from the near side in FIG.

FIG. 10 is a schematic perspective view of an opening / closing arm support device.

FIG. 11 is a plan view of an arm opening / closing type article suspension device in which an opening / closing arm support device of another embodiment is incorporated.

FIG. 12 is a sectional view taken along arrow 12-12 in FIG.

FIG. 13 is a schematic perspective view of the opening / closing arm support device of FIG. 11;

[Explanation of symbols]

20, 120 Arm opening / closing type article suspension device 24 First rotation support shaft 25 Second rotation support shaft 42, 46, 47 First drive mechanism 72, 76, 77 Second drive mechanism 40, 43, 140, 143 First hanger 44, 45, 64, 65, 144, 145, 164, 1
65 Opening / closing arm of first hanger 70, 73, 170, 173 Second hanger 74, 75, 94, 95, 174, 175, 194, 1
95 Opening / closing arm of second hanger 124 First fixed support shaft 125 Second fixed support shaft

Claims (2)

(57) [Scope of request for utility model registration] 1. An arm opening / closing type article hanging apparatus provided with a hanger having a pair of opposed opening / closing arms which hangs up and down on a traveling carrier and holds a conveyed article. A first rotation support shaft and a second rotation support shaft are spaced apart and arranged side by side in a freely rotatable manner, and one arm of a pair of open / close arms opposed to each other is attached to the first rotation support shaft.
A first hanger in which the other arm is rotatably and loosely fitted to the second rotation support shaft, one arm of a pair of open / close arms opposed to the first rotation support shaft, and the other arm is the first rotation support shaft. A second hanger attached integrally to the two-rotation support shaft is provided, and the first and second rotation support shafts are provided with a second hanger .
Each of the link levers rotatably bearing is rotatably driven in directions opposite to each other and integrated with the respective link levers.
The is the operating opening and closing the opening and closing arm of the first hanger 1
A drive mechanism and a second drive mechanism for opening and closing the open / close arm of the second hanger are separately provided on the frame,
An opening / closing arm support device for a plurality of hangers for independently opening and closing the opening / closing arm of the first hanger and the opening / closing arm of the second hanger on the first rotation support shaft and the second rotation support shaft, respectively. 2. An arm opening / closing type article suspending device provided with a hanger having a pair of opposed opening / closing arms suspended by a traveling carrier so as to ascend and descend to hold a conveyed article, wherein a frame of the article suspending device is provided. A first fixed support shaft and a second fixed support shaft are fixedly and laterally arranged so as to be spaced apart from each other, and one of a pair of opposing open / close arms is the first fixed support shaft, and the other arm is the second fixed support shaft. A first hanger and a second hanger rotatably and loosely fitted, respectively, and a first drive mechanism for opening and closing the opening and closing arm of the first hanger and a second driving mechanism for opening and closing the opening and closing arm of the second hanger. Are provided separately on the frame, and the opening and closing arms of the first and second hangers on the first fixed support shaft and the second fixed support shaft are respectively opened and closed independently of each other.