JPH0818551B2 - Hanging transport device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspending and conveying device that supports and conveys the body of an automobile, for example.

2. Description of the Related Art A conventional device of this type is, for example, Japanese Patent Laid-Open No. 55-2134.
The structure found in Publication No. 7 is provided. That is, a pair of left and right hanger arms are pivotally attached to the main body attached to the carrier side so as to be openable and closable via pivot points.

After the whole is stopped, the upper ends of both hanger arms are pushed down by the operation of the cylinder to open both hanger arms, thereby loading and unloading the transported goods.

Problems to be Solved by the Invention According to the above-mentioned conventional type, there is no problem in opening the hanger arm after stopping the whole body, but it is not possible to move the entire hanger arm while it is open.
On the other hand, it is possible to arrange a cam rail (guide) that acts on the upper end of the hanger arm along the path for opening the hanger arm. However, according to this, the cam rail must be arranged along the entire length of the path. From
It is complicated and complicated, including the cam rail support structure. Further, in the self-propelled vehicle type having friction drive wheels instead of the chain-pulled type as in the conventional type, the self-propelled vehicle can be smoothly propelled at a predetermined speed by the frictional resistance caused by the hanger arm slidingly contacting the cam rail. Can not.

An object of the present invention is to provide a suspending / conveying device capable of opening and moving an arm without using a cam rail (guide rail).

Means for Solving the Problems In order to achieve the above object, the suspension conveyance device of the present invention is provided with a movable body that is supported and guided by a rail and is movable on a fixed path, and the movable body has an object to be conveyed. A support device is provided, the support device is provided with an upper frame body provided on the movable body side, a pair of left and right arm members attached to the upper frame body so as to be openable and closable in the left-right direction, and the upper part. It is provided between the frame body and the arm member, and is composed of an opening movement maintaining device for the opened arm member, and the opening movement maintaining device is swingably suspended by the arm member via a rotation shaft in the front-rear direction. A lever having a roller at its free end, and an inclined receiving surface that is provided on an upper frame body that is lower than the lever and guides the roller by inclining downward and a roller provided on the outer end of the inclined receiving surface. In the opening direction A stopper surface for restricting movement, and a maintenance release operating rod capable of swinging the lever inward of an axis passing through the axis of the rotary shaft and perpendicular to the guide surface, and the roller with the arm member opened. Is separated above the inclined receiving surface so that the lever hangs down.

Action According to the configuration of the present invention, the roller is stopped by stopping the movable body at a predetermined position in a fixed path and opening the arm member with respect to the upper frame automatically or by an opening / closing device provided outside. The lever is hung so as to be spaced upward from the inclined receiving surface, and then the arm member is lowered to bring the roller into contact with the inclined receiving surface. At this time, since the inclined receiving surface is inclined outward, the roller rolls outward and the arm swings outward, the roller is locked by the stopper surface, and the arm member is held in the open state. .
After that, the movable body can move with the arm member opened. Then, after stopping the movable body at a predetermined position on the lower side, after opening the arm member automatically or by an external opening / closing device, the maintenance release operating rod is operated by an external force to swing the lever to the inside of the axis. When the arm member is closed in the moving state, the roller rolls inwardly on the inclined receiving surface, and the maintenance of the opening is released.

Embodiment One embodiment of the present invention will be described below with reference to the drawings.

In FIG. 5 and FIG. 6, reference numeral 1 denotes a rail having a cross-sectional shape of 1, which is supported by a ceiling beam 2 via a rail support 3.
A signal / power supply device 4 is provided over the entire length on the side surface opposite to the side surface to which the rail support 3 is coupled. A plurality of (two in the embodiment) trolley main bodies 6 are self-propelled bodies (an example of movable bodies) 5 that are supported and guided by the rails 1 and can travel on a fixed path 15 and these trolley main bodies 6 are provided.
Shafts 8 in the left-right direction mounted via bearings 7 respectively on the upper part of the vehicle, running wheels 9 mounted on these shafts 8 and freely mountable on the upper surface of the rail 1, and mounted on each trolley body 6. A front and rear connecting rod that connects between the trolley body 6 and the lateral shake preventing roller 10 which is freely abuttable on both upper and lower ends of the rail 1 via a vertical connecting pin 11.
12, a traveling drive device 13 mounted on one trolley body 6 of the trolley body 6 group and having a brake interlocking with its axis 8, and mounted on this specified trolley body 6 and said signal・ A current collector 14 that can be slidably contacted with the power supply device 4
Composed of and. A hanger device 21, which is an example of a supporting device, is disposed below the connecting rod 12. The hanger device 21 includes an upper frame body 22, a pair of arm members 24 attached to both sides of the upper frame body 22 so as to be swingable left and right via front-rear direction pins 23, and attached to the lower ends of the arm members 24. It is composed of a cradle 25 and the like. Brackets 26 are erected from the front and rear portions of the upper frame body 22, and a chain from a winch device 16 provided on the connecting rod 12 is provided on the upper ends of the brackets 26.
17 are connected. Further, a plurality of positioning rods 27 erected from the upper frame body 22 can be freely inserted into and removed from the positioning cylinder 18 hung from the connecting rod 12 from below. The arm member 24 has a pair of front and rear brackets 28 each having one end in the horizontal direction connected to the front-rear direction pin 23, a vertical rod 29 hung from the other end of the brackets 28, and a vertical rod opposed to each other in the front-rear direction.
It comprises front and rear rods 30 connecting between 29, and a passive portion 31 for arm opening provided between the brackets 28, and a pedestal 25 is connected inwardly from the lower end of each vertical rod 29. The upper frame
An opening movement maintaining device 35 for the opened arm member 24 is provided between 22 and both arm members 24. That is, FIGS. 1 to 4
As shown in the figure, stopper plates 36 are attached to the upper surface at the both ends of the upper frame 22 in the left-right direction.
The upper surface of 36 is formed as a lower inclined receiving surface 36a toward the outer end, and a stopper surface 36b protruding upward is formed at the outer end. A rotary shaft 37 in the front-rear direction is attached to the bracket 28 via a bearing 38 at a position slightly inside the stopper surface 36b and outside the front-rear direction pin 23. A lever 39 is continuously provided from an intermediate portion of the rotary shaft 37, and a roller 40, which is abuttable on the upper surface of the stopper plate 36, is freely rotatably attached to a free end of the lever 39. Further, from the end of the rotating shaft 37, a relay rod (rod-shaped) 41 is continuously provided in the same direction as the lever 39. On the outer end of the bracket 28 and on the outer surface in the front-rear direction, a support tool 43 is provided via a fixing tool 42.
A guide body 45 is rotatably attached to the support tool 43 via a pin 44 in the front-rear direction. The guide body 45 has a left-right guide hole 46, and a left-right operation rod (rod-shaped) 47 is inserted into the guide hole 46. An operating roller 48 is attached to the outer end of the operating rod 47, and the inner end and the end of the relay rod 41 are connected to each other via a connecting tool 49 so as to be relatively rotatable and positionally adjustable. It The connecting tool
49 is externally fitted to the threaded portion formed on the free end of the operating rod 47,
In addition, the turning pin 51 whose position can be adjusted by the nut 50, and the relay rod 41 which is fitted onto the front and rear direction pin portion of the turning pin 51
The swivel block 53 is externally fitted to a threaded portion formed on the free end of the nut via a nut 51 so as to be positionally adjustable.

As shown in FIG. 9, an unpacking section 57 of an object to be transported (such as a car body) 55 is set at a predetermined position in the fixed path 15,
An opening / closing device 58 for the arm member 24, a holding device 59 for the hanger device 21, and an unpacking device 60 for the transported object 55 are provided here. Then, the loading section 61 is set at a position lower than the wholesale section 57 by a predetermined distance, and the arm member is provided here.
An opening / closing device 62 for the 24, a holding device 63 for the hanger device 51, a releasing device 64 for the opening maintenance device 35, and a loading device 65 are provided. As a result, an arm opening section 66 is formed between both parts 57 and 61.

As shown in FIG. 7, the opening / closing devices 58 and 62 have a support shaft 71 in the front-rear direction on a machine frame 70. An intermediate portion of an arm 72 is attached to the support shaft 71 and the upper end of the arm 72 and the machine frame are attached. A cylinder device 73 is provided between the cylinder device 73 and the cylinder device. Then, the contact plate 74 provided on the inner surface of the lower end of the arm 72 is configured to contact the passive portion 31 from below by swinging the lower end inward and upward.

As shown in FIG. 8, the presser devices 59, 63 are presser cylinder devices 76 that are directed obliquely downward to the machine frame 70 via a mounting frame 75.
Is provided on the lower end of the piston rod 77,
A pressing member 78 that is capable of abutting against 22 is attached from above.

Further, the release device 64 includes a support shaft 80 in the front-back direction on the machine frame 70.
The intermediate portion of the arm 81 is attached to the support shaft 80, and the cylinder device 82 is provided between the upper end of the arm 81 and the machine frame 70.
Is provided. The contact plate 83 provided on the inner surface of the lower end of the arm 81 is configured to contact the operating roller 48 of the operating rod 47 from the outside by swinging the lower end inward.

As shown in FIGS. 5 and 6, the self-propelled body 5 supporting the transported object 55 by the hanger device 21 operates the traveling drive device 13 to forcibly rotate the traveling wheel body 9, The vehicle travels in a state where it is supported on the rail 1 by a plurality of traveling wheels 9 and lateral vibration is prevented by a plurality of lateral vibration preventing rollers 10. The power supply to the self-propelled body 5 is performed by the current collector 14 slidingly contacting the signal / power supply device 4.

At the time of such conveyance, FIG. 1 and FIG.
As shown by the solid line in FIG. 8, the hanger device 21 is in the closed posture, the operating rod 47 is pushed in, and the roller 40 is in contact with the inclined receiving surface 36a inside the rotating shaft 37. The above-mentioned self-propelled body 5 is stopped at the wholesale section 57. Then, the pressing device 59 is operated first. That is, the holding cylinder device 76 in the contracted state is extended as shown by the solid line in FIG. 8, and the holding material 78 is brought into contact with the upper surface of the upper frame body 22 as shown by the phantom line. As a result, the upper frame body 22 is pressed from above on both sides, so that steady rest, that is, positioning is performed. Then, the unloading device 60 is operated to lift up the transported object 55 supported via the pedestal 25, and then the opening / closing device 58 is operated. That is, as shown by the solid line in FIG. 7, the cylinder device 73 in the contracted state is extended and the arm 72 is swung. Then, as shown by the phantom line in FIG. 7, the abutting plate 74 that moves upward abuts the passive portion 31 from below, thereby opening both arm members 24 outward and upward around the longitudinal pin 23 ( Rocking). At this time, the roller 40 moves upwardly away from the inclined receiving surface 36a, so that the roller 40,
By the own weight of the relay rod 41, the connecting member 49, the operating rod 47, etc., the lever 39 is rotated downward and outward via the rotation shaft 39,
The lever 39 is hung so that the roller 40 faces the inclined receiving surface 36a directly below the rotary shaft 37 as shown by the phantom line (a) in FIG. In this state, the opening / closing device 58 is reversely operated, and the arm 72 at the opening operation position shown by the virtual line in FIG. 7 is retracted outward as shown by the solid line. Then, the arm member 24 tries to close due to its own weight, but since the inclined receiving surface 36a with which the roller 40 abuts is inclined downward to the outside, the roller 40 is moved to the outside of the rotation shaft 37 by the downward power. As shown in FIG. 2, it comes into contact with the stopper surface 36b. As a result, the lever 39 serves as a stopper that blocks the downward movement of the bracket 28, and thus the opening movement of the arm member 24 is maintained. Then, after the pressing device 59 is operated to the non-acting side, the self-propelled body 5 travels to the loading section 61. Wholesaler 60
The transported object 55 supported by the
Taken out laterally with respect to 15.

The self-propelled body 5 traveling on the fixed path 15 with the hanger device 21 opened is stopped at the loading section 61. At this time, in the loading section 61, the transported object 55 is carried into a predetermined position by the loading device 65, and the arm members 24 are located on both sides of the transported object 55. After the self-propelled body 5 is stopped, first, the pressing device 59 is operated, and the upper frame body 22 is steady and positioned. Next, the opening / closing device 62 is operated, and the passive portion 31
The release device 64 is operated in a state in which the opening force is applied to the arm member 24 via the. That is, the bracket 28 is slightly raised by applying the opening power to separate the roller 40 from the stopper surface 36b. Then, as shown by the solid line in FIG. 8, the cylinder device 82 in the contracted state is extended and the arm 81 is swung.
Then, as shown by the phantom line in FIG. 8, the inwardly swinging contact plate 83 comes into contact with the operating roller 48 of the operating rod 47 protruding laterally, and is supported by the guide body 45. Operating rod 47
Will be pushed. As a result, the relay rod 41 is rotated inwardly via the connector 49, the lever 39 is rotated in the same direction via the rotation shaft 37, and the roller 40 is separated from the stopper surface 36b. As shown by the phantom line (b), it is positioned inside the axis A passing through the rotation axis 37 and perpendicular to the inclined receiving surface 36a. Next, the opening / closing device 62 is reversely operated to retract the arm 72 at the opening operation position outward. As a result, the arm member 24 tries to close due to its own weight, but at this time, the roller 40 is located inside the rotating shaft 37 and the inclined receiving surface 36a.
The roller 40 moves further inward due to the lower power. Therefore the arm member
24 is closed without any trouble, and the state shown by the solid lines in FIGS. 1 and 6 is reached. Then, the loading device 65 is actuated to lower the transported object 55, thereby receiving the transported object 55.
25, that is, to the hanger device 21 side. After that, the self-propelled body 5 can be moved to the lower side by operating the holding device 63 and the release position 64 to the non-acting side.

Although the self-propelled body 5 is shown as the movable body in the above-described embodiment, it may be a trolley type that can be engaged with and disengaged from the chain driving body.

EFFECTS OF THE INVENTION According to the present invention having the above-described configuration, each support device is provided with an opening movement maintaining device having a simple structure, and the arm member is opened until the roller rises from the inclined receiving surface, whereby the opening movement maintaining device operates easily and reliably. Thus, the open state of the arm member can be maintained. After that, it is possible to move a chain drive type or a self-propelled type movable body with the arm member opened, so that it is not necessary to arrange a cam rail (guide rail) along the path, and As a structure can be simplified. Especially in the self-propelled type, since there is no frictional resistance for maintaining the opening, the vehicle can travel smoothly at a predetermined speed, and after stopping the movable body at a predetermined position on the lower side, the arm member is opened to move the roller. Can be easily lifted, and the arm member can be closed by operating the operating rod by an external force and swinging the lever inward, so that the maintenance of opening can be released easily, and the arm member can be closed. it can.

[Brief description of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a front view of the opening / closing maintenance device during a closing operation, FIG. 2 is a front view of the same during the opening operation, and FIG. 3 is a plan view of FIG. Fig. 4 is a cutaway side view of the same part, Fig. 5 is a side view of the whole, Fig. 6 is a rear view of the same part, Fig. 7 is a front view of the opening / closing device part, and Fig. 8 is a holding device part and release. FIG. 9 is a schematic plan view of a front view showing the device section. 1 ... Rail, 5 ... Self-propelled body (movable body), 6 ... Trolley body, 15 ... Constant path, 16 ... Winch device, 21 ... Hanger device (supporting device), 22 ... Upper frame , 23 ...... longitudinal pin, 24 ...... arm member, 25 ...... cradle, 31 ...... passive part, 35 ...... opening maintenance device, 26a ...... tilted receiving surface, 36b ......
Stopper surface, 37 …… Rotary shaft, 39 …… Lever, 40 …… Roller, 41 …… Relay rod, 45 …… Guide body, 47 …… Operation rod, 49
...... Coupling, 51 …… Swivel pin, 53 …… Swivel block, 55
...... Conveyed object, 57 …… Wholesale section, 58 …… Opening / closing device, 59 ……
Presser device, 61 …… Loading section, 62 …… Opening / closing device, 63 ……
Presser device, 64 …… Release position, 66 …… Arm opening section, A
…… Axis.

Claims (1)

[Claims] 1. An upper frame body provided with a movable body which is supported and guided by rails and which maintains a fixed path, and a supporting device for an object to be conveyed, the supporting device being provided on the movable body side. And a pair of left and right arm members attached to the upper frame body so as to be openable and closable in the left and right direction via pins in the front and rear direction, and an opening and closing motion of the arm member provided between the upper frame body and the arm member and opened. The opening maintenance device comprises a lever, which is swingably hung by an arm member via a rotation shaft in the front-rear direction and has a roller at a free end, and an upper frame body lower than the lever. An inclined receiving surface which is provided on the outer side of the rotating shaft and is inclined downward and guides the roller, and a stopper surface which is provided at an outer end portion of the inclined receiving surface to restrict the movement of the roller in the opening direction. Guy goes through the axis A holding / releasing operation rod swingable inward of an axis perpendicular to the surface is provided, and the roller is separated above the inclined receiving surface and the lever is hung down when the arm member is opened. Suspended transport device characterized by.