JPH037542B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is employed to form upper and lower travel paths for a traveling object such as a trolley, and to transfer the traveling object between these upper and lower travel paths. This invention relates to a moving body transfer device.

Conventional technology Conventionally, this type of transfer device has been equipped with an upper fixed rail and a lower fixed rail that support and guide the trolley, and a lifting rail that can be selectively connected to the ends of these fixed rails. For example, with the lifting rail connected to the upper fixed rail, the trolley that has traveled on the upper fixed rail is transferred onto the lifting rail, and then the lifting rail is lowered and connected to the lower fixed rail. The structure was such that the bogie ran from the lifting rail to the lower fixed rail.

Problems to be Solved by the Invention According to the conventional system as described above, separate operating devices must be provided for retracting the cart onto the lifting rail and pushing the cart out from the lifting rail. This was disadvantageous in terms of cost and control.

Means for Solving the Problems In order to solve the above problems, the moving body transfer device of the present invention is provided with an upper fixed rail and a lower fixed rail that support and guide the traveling body having an engaged part. , an elevating rail that can be selectively connected to the ends of these fixed rails is provided, and a movable member that can move in and out of both fixed rails and an egress and egress drive device are provided on this elevating rail side, and An engagement having a pair of engagement pieces that can be selectively engaged and disengaged from the front and rear sides of the engaged part at the tip of the member, and one of the engagement pieces is elastically biased to be in the engagement position. A device is provided, a fixed cam rail is provided on one of the fixed rail sides, and the other engaging piece is placed in an engaging position against elasticity, and an operating position connected to the fixed cam rail is provided on the elevating rail side; A movable cam rail is provided that is movable between a working position and a retreated non-working position and is elastically biased to the working position, and the movable cam rail is moved backward against elasticity during the ascending and descending path of the elevating rail. A cam device is provided.

Effects According to the configuration of the present invention, after connecting the lifting rail to the upper fixed rail, the traveling body is moved between both rails, and after connecting the lifting rail to the lower fixed rail, the traveling body is moved between both rails. By moving the vehicle, the vehicle can be transferred between the upper and lower travel routes. At that time, the moving body is moved from one fixed rail to the lifting rail by moving the movable member toward the fixed rail and engaging one engagement piece of the engagement device with the engaged part of the running body. Thereafter, the movable member can be pulled out by moving in and out, and at this time, the engagement posture of one of the engagement pieces is regulated and maintained by the fixed cam rail and the movable cam rail in the operating position. When the elevating rail that completely supports the traveling body is raised and lowered and connected to the other fixed rail, the movable cam rail becomes inactive position against the elastic biasing force due to the action on the cam device.
As a result, the engagement device is automatically switched by elastic force, and the other engagement piece is made to face the engaged portion. Therefore, by projecting the movable member, the traveling body on the elevating rail can be pushed into the other fixed rail.

Embodiment An embodiment of the present invention will be described below based on the drawings.

In FIG. 1, 1 is a pair of left and right upper fixed rails, 2 is a left and right pair of lower fixed rails, and these fixed rails 1 and 2 are vertically parallel and are integrated by a machine frame 3. Both fixed rails 1 and 2 support and guide a bogie 4, which is an example of a traveling body, via wheels 5, thereby forming an upper traveling route 6 and a lower traveling route 7. Reference numeral 8 denotes a lowering lifting rail, which can be selectively connected to one end of both the fixed rails 1 and 2 by the operation of the lifting drive device 9. Reference numeral 10 denotes a lift rail for lifting, which can be selectively connected to the other ends of the fixed rails 1 and 2 by the operation of the lift drive device 11. A pair of engaged portions 12A, 12B are vertically provided on one side of the lower surface of the truck 4, distributed in the front and rear, and a pair of stopped members 13A, 13B are vertically provided in the central portion.

2 to 5, reference numeral 15 denotes a movable member provided on the side of the lowering lifting rail 8; both fixed rails 1,
It is configured to be able to move in and out of the two sides. In other words, the elevator rail 8 is linked to the elevator drive device 9 and is used for lowering.
A plurality of guide rods 17 are attached to the frame 16 that supports the
A movable member 15 in the form of an upward channel is attached to a sliding body 18 supported and guided by these guide rods 17. Between the movable member 15 and the frame 16, a cylinder device 19, which is an example of an ejection/retraction drive device, is disposed. The movable member 15
An engagement device 22 having a pair of engagement pieces 20 and 21 that can be selectively engaged with and disengaged from the front and rear surfaces of the engaged portion 12A is provided at the tip of the engagement device 22. That is, a support plate 23 is connected to the end of the movable member 15, and a swinging rod 26 is attached to the support plate 23 via a vertical pin 24 and is swingable around a vertical axis 25. The engaging pieces 20, 2 are attached to both ends of the swinging rod 26.
1 are swingably attached via vertical pins 27 and 28, respectively, and both engaging pieces 20 and 21 and the support plate 2
3, there are provided springs 29, 30 that urge these engaging pieces 20, 21 to protrude laterally. Furthermore, stoppers 31 and 32 are provided on the swinging rod 26 to restrict the maximum swinging amount of the engaging pieces 20 and 21 due to the urging force of the springs 29 and 30. and engagement device 22
is elastically biased to bring one of the engagement pieces 20 into the engagement position. That is, a tension spring 34 is interposed between the holder 33 from the swinging piece 26 and the movable member 15, and a stopper 36 that restricts the maximum swinging position due to the elasticity of the swinging rod 26 and the maximum swinging position against the elasticity. The stopper 35 that regulates the position is attached to the support plate 2.
It is located on 3. Engagement piece 2 of the swinging rod 26
A roller 38 is attached to the opposite side (inside) from the 0 and 21 sides via a vertical pin 37.

In FIGS. 2, 3, and 6 to 8, a fixed cam rail 40 is provided on the upper fixed rail 1 side, with the other engaging piece 21 in the engaged position against the tension spring 34. ing. That is, the fixed cam rail 40 is arranged parallel to the inside of the upper fixed rail 1, and is fixed to the machine frame 3 side. Further, a movable cam rail 41 is provided on the lowering lifting rail 8 side, and is movable between an active position connected to the fixed cam rail 40 and a non-active position retreated from this active position. That is, the base plate 42 integrated with the frame 16 has mounting stands 43A, 43, respectively.
A pair of vertical shafts 44A and 44B are erected via B,
Levers 45A, 45 are attached to these vertical axes 44A, 44B.
B is attached so that it can swing freely. and lever 45
Between the free ends of A and 45B, the movable cam rail 41
are attached via vertical pins 46A, 46B.
A spring 47 is interposed between the mounting base 43A on one side and the base end of the lever 45B on the other side, and the movable cam rail 41 is elastically biased by the elastic force so as to be in the direction of the operating position. Both cam rails 40, 41 are
Its outer surface guides the roller 38.

As shown in FIGS. 2, 3, and 6 to 11, a cam that moves the movable cam rail 41 backward against the spring 47 is placed at the lower part of the vertical path of the lowering elevator rail 8. A device 50 is provided. That is, a cam roller 52 is attached to the lower end of a hanging member 51 connected from the rear end of the movable cam rail 41, and a cam plate 53 with a cam surface 53a facing from below is disposed on this cam roller 52 via a holding member 54. There is. At this time, the cam surface 53a is inclined such that the outer side is on the upper side and the inner side is on the lower side.

As shown in FIG. 3, a stopper device 60 for positioning is disposed near the end of the upper travel route 6, and this stopper device 60 is connected to a stopper body 62 which is swingably attached via a vertical pin 61. , a cylinder device 63 for swinging this stopper body 62, and the stopper body 62
It is possible to accept it freely. 64 indicates a guide.

Next, the operation of the above embodiment will be explained.

As shown in FIG. 3, the bogie 4 that is supported and guided by the upper fixed rail 1 and has been traveling on the upper traveling route 6 under the power of a drive device (not shown) such as a chain, has a stopper body 13A that is connected to the stopper body. 62, it is stopped at a predetermined position. Before and after this, the empty lowering lifting rail 8 rises due to the lifting operation of the lifting drive device 9, and connects to the end of the upper fixed rail 1. In this raised position, the cam roller 52 is inactive, so the movable cam rail 41 is moved by the elastic force of the spring 47 and both levers 45A,
45B to the operating position, and is connected to the upper fixed rail 1 as shown in solid lines in FIGS. 2, 6, and 7. At that time, the movable member 15 has retreated to the lowering lifting rail 8 side, and therefore the movable cam rail 41 that has moved to the operating position pushes the roller 38 sideways, and the tension spring 34
The other engaging piece 2 is moved by swinging the swinging rod 26 against the
1 is the engagement position. Next, when the cylinder device 19 is actuated to cause the movable member 15 to protrude, the engagement device 22 protrudes together with the movable member 15. First, the back surface of the other engaging piece 21 comes into contact with the engaged portion 12A, and swings against the spring 30 as shown by the imaginary line A in FIG. At that time, the roller 38
is guided by a fixed cam rail 40. The engaging piece 21 that has passed through the engaged portion 12A swings back to its original position due to the elastic force of the spring 30, and at this time the protruding movement is completed. Next, when the movable member 15 is moved in and out,
As shown by the solid line in FIG. 5, the engaging piece 21 engages with the engaged portion 12A, and the outward swinging of the engaging piece 21 is prevented by the stopper 32. Therefore, the movable member 15
The retraction movement is transmitted to the truck 4 via the engaging piece 21 and the engaged portion 12A, and the truck 4 is drawn from the upper fixed rail 1 to the lowering lifting rail 8.
At this time, the stopper device 60 is being opened. It is not possible to completely move the cart 4 just by reciprocating the movable member 15 once. Therefore, it is reciprocated once again, and at this time the engaging device 22 acts on the other engaged portion 12B.

After the trolley 4 is completely moved, the lowering lifting rail 8 is lowered by the lowering operation of the lifting drive device 9. Then, on the way down, Figure 2, Figure 9,
As shown by the imaginary line B in FIG. 11, the cam roller 52
contacts the upper part of the cam surface 53a. As the cam roller 52 descends further, the movable cam rail 52 is guided by the inclined cam surface 53a.
1 resists the spring 47 and both levers 45A, 45
Due to the link action of B, it moves obliquely in the retraction direction and toward the center. And Figure 2,
When the lowering limit is reached as shown by the imaginary line C in FIGS. 9 and 11, the lower feed elevator rail 8 is connected to the lower fixed rail 2, and the movable cam rail 41
moves to the non-operating position as shown by the imaginary line in FIG. As a result, the swinging rod 26 swings due to the elastic force of the tension spring 34, as shown by the imaginary line in FIG.
One of the engaging pieces 20 is engaged with the engaged portion 12B as shown by the imaginary line D. In this state, the movable member 15
By projecting and moving, the engaging piece 20 backs up the engaged portion 12B, thereby pushing the trolley 4 from the lower transport elevator rail 8 onto the lower fixed rail 2. This pushing is applied to the engaged portion 12A and is pushed twice, thereby completely moving the truck 4 to the lower fixed rail 2.

As described above, the cart 4 on the upper traveling route 6 can be transferred to the lower traveling route 7.

Although the lower feed side has been described above, the structure and operation are similar on the upper feed side. The major difference is that, as shown in FIGS. 1 and 12 to 14, the cam surface 53a is directed downward, and the cam roller 52 acts on the cam surface 53a when rising.

Effects of the Invention According to the moving body transfer device of the present invention having the above configuration, the moving body is moved between both rails after connecting the lifting rail to the upper fixed rail.
By connecting the elevating rail to the lower fixed rail and then moving the traveling body between both rails, the traveling body can be transferred between the upper and lower traveling paths. At that time, the moving body is moved from one fixed rail to the lifting rail by moving the movable member toward the fixed rail and engaging one engagement piece of the engagement device with the engaged part of the running body. After that, it can be pulled out by moving the movable member in and out, and at this time, the engagement posture of one of the engagement pieces can be regulated and maintained by the fixed cam rail and the movable cam rail in the operating position. can.

When the elevating rail that completely supports the traveling body is raised and lowered and connected to the other fixed rail, the movable cam rail resists the elastic biasing force due to the action on the cam device and becomes a non-acting position. Accordingly, the engagement device is automatically switched by elastic force, and the other engagement piece can be opposed to the engaged portion. Therefore, by projecting the movable member, the traveling body on the lifting rail can be pushed into the other fixed rail and transferred. As described above, according to the present invention, the pulling of the traveling body onto the lifting rail and the pushing out of the traveling body from the lifting rail can be performed by reciprocating the movable member using a single egress/retraction drive device. This is advantageous in terms of equipment cost and control.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a partially cutaway side view of the lower feed section, Fig. 3 is a plan view of the same, and Fig. 4 is a view of the engagement device section. longitudinal side view,
Fig. 5 is a plan view of the same, Fig. 6 is a partially cutaway side view of the movable cam rail section, Fig. 7 is a plan view of the same, Fig. 8 is a front view of the same, and Fig. 9 is a side view of the lower feed side cam device. 10 is a front view of the same, FIG. 11 is a plan view, FIG. 12 is a side view of the upper feed side cam device, FIG. 13 is a front view of the same, and FIG. 14 is a plan view of the same. 1... Upper fixed rail, 2... Lower fixed rail, 4
...Dolly (traveling body), 6...Upper running route, 7...Lower running route, 8...Elevating rail for lowering, 9...Elevating and lowering drive device, 10...Elevating and lowering rail for upper transportation, 11...Elevating and lowering drive device, 12A, 12B ...Engaged portion, 15...Movable member, 19...Cylinder device (exit/retract drive device), 20,
21...Engagement piece, 22...Engagement device, 25...Vertical axis center,
26... Swinging rod, 29, 30... Spring, 34... Tension spring, 38... Roller, 40... Fixed cam rail, 4
1...Movable cam rail, 45A, 45B...Lever,
47... Spring, 50... Cam device, 52... Cam roller, 53... Cam plate, 53a... Cam surface.

Claims (1)

[Claims] 1. An upper fixed rail and a lower fixed rail are arranged to support and guide a traveling body having an engaged part, and a lifting rail that can be selectively connected is provided at the end of these fixed rails, and a lifting rail is provided on the side of the lifting rail. , a movable member that can move in and out of both fixed rails and a drive device are provided, and a pair of movable members that can be selectively engaged and disengaged in front and rear of the engaged portion are provided at the tip of the movable member. An engagement device having engagement pieces and elastically biased to bring one engagement piece into the engagement position is provided, and the other engagement piece is engaged with one of the fixed rails against the elasticity. Provide a fixed cam rail for the position, and on the lifting rail side,
A movable cam rail is provided that is movable between an active position connected to the fixed cam rail and a non-active position retreated from the active position and is elastically biased in the direction of the active position, and in the ascending and descending path of the elevating rail,
A moving body transfer device comprising a cam device that moves the movable cam rail backward against elasticity.