JPH07426Y2 - Automatic cross rail switching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to rotation of an intersection of intersecting rails by a carrier such as a trolley having a hook-shaped hanging portion that engages with the rail from one side. Rotate the rail, switch the rail,
The present invention relates to a switching device that forms a continuous rail.

Conventional Technology This device is also used for self-propelled conveyors,
It is particularly suitably used for a hanging trolley conveyor in which clothes or the like are hung on a hanger below a hanging part and the hanger is manually pushed. An example thereof is shown in FIG. FIG. 4 (a) is a plan view of the intersection of the intersecting rails 48 and 49, and FIG. 4 (b) is a schematic view of another example of the intersection as seen from the side.

In FIG. 4 (a), a trolley or the like enters from the stationary rail 48 at the bottom of the figure in the direction of the white arrow. And
When approaching the stationary rail 49 orthogonal to it, the automatic 2-way switch 42 on the line is automatically switched to the position of the dotted line by the action of the trolley head or the like. (The specific mechanism is disclosed in Japanese Patent Publication No. 57-27241).
The trolley or the like reaches the relay stationary rail 40 via the switch 42. In the meantime, if the 2-way switch 43 is manually switched to the position indicated by the dotted line, the trolley or the like will be mounted on the relay stationary rail 41, and in the same manner, it will move to the upper stationary rail 48 via 43, 44, 42 in the same manner. Exit in the direction of the pull arrow.

In FIG. 4 (b), the trolley and the like enter from the stationary rail on the right side of the figure in the direction of the white arrow. Then, when placed on the end of the drop switch 45, the switch
45 is the weight of the trolley or the like and lays down in the direction of the dotted arrow to form a continuous rail. When the trolley or the like moves to the stationary rail on the left side of the figure, the switch 45 returns to the position indicated by the solid line in the figure by the force of the spring. The drop switch 46 performs the same function with respect to a trolley or the like that enters the intersection from the back of the paper.

Problems to be Solved by the Invention In the case of FIG.
In order to pass through the intersection with and, it was necessary to make a large detour and to dispose four 2-way switches there. Just moving from stationary rails 48 to 41 would still require two switches to be deployed.
Figuratively speaking, with this structure, it was not possible to easily make a pedestrian crossing that goes straight on the rail 48 and crosses the rail 49, so we had no choice but to make a detour. At least 2 meters or more had to be projected to the side from the stationary rail 48, and it was necessary to provide a large number of switching devices. Therefore, various inconveniences such as a complicated line structure and easy failure are caused.

In the case of FIG. 6A, although these inconveniences can be eliminated, another kind of problem has occurred. That is, when used for a long period of time, the force of the spring is weakened or the rotating portion runs out of oil, so that the switch 45 cannot return to the original height position after the trolley or the like has passed. At that time, when the switch 46 from which the trolley or the like has entered from the other stationary rail, that is, from the back surface of the paper, begins to fall down, it collides with the switch 45 that is stopped midway and damages the device, resulting in the desired connection. Becomes impossible. In addition, this product can send and receive but cannot return.

The present invention intends to solve all the drawbacks of these conventional techniques with a simple mechanism.

The invention of claim (1) is to solve the problem that the center of the rotating rail is made to coincide with the intersection of the rails and it is rotated by a trolley or the like.

A solution of the invention of claim (2) is to make it possible to apply the invention of claim (1) to each of the intersecting rails.

According to the invention of claim (3), even if the trolley or the like enters the intersection from either direction of one or two rails,
It is an object of the invention to apply the invention of claim (1) or (2) and to automatically perform switching.

According to the invention of claim (1), a shaft is erected at the intersection of intersecting rails, the lower end of the shaft holds the center of the rotating rail, and the upper end has the center of the rotating plate. The lever is fixedly mounted, and the middle of the lever is mounted on a pivot that is arranged directly above the stationary rail.A cam follower that engages with an incoming trolley or the like is attached to the lower end of the lever, and the upper end of the lever and the rotating plate are attached. A rod is used to connect the outer peripheral pivotally connecting portion with a rod, and a coil spring is elastically mounted between the spring set pin on the outer periphery of the rotating plate and the frame. The cam follower is fixed at a fixed position between the coil spring and the pivotal connecting portion such as a trolley. Immediately before leaving the joint, the set pin crosses the neutral line of the coil spring, and after that, the rotating rail is rotated to the connecting position by the elastic force of the spring.

According to the invention of claim (2), the pivot of the invention of claim (1),
A set of a lever with a cam follower, a pivot portion, and a rod is arranged one set immediately above the stationary rail of each intersecting rail.

In the invention of claim (3), one set of the sets is provided directly above both portions of the stationary rail that form a continuous rail to be connected, and the cam follower of the one set is a trolley or the like. The other cam follower is configured to be in a non-engaging position when it is in a engaging position.

In the invention of claim (1), when the trolley or the like enters toward the intersection on the stationary rail, it first engages with the cam follower. The cam follower rotates a lever, and a rod connected to the upper end of the cam follower rotates a rotating plate against the elasticity of a coil spring. At the same time, the rotating plate rotates the rotating rail carried on the lower end of the rotating plate via the shaft. When the rotation is carried out to a certain limit, the cam follower disengages from the engagement of the trolley, etc., and it becomes impossible to rotate by the cam follower anymore, but the spring crosses the neutral line just before reaching that position. When the spring crosses the neutral line, the elastic energy accumulated up to that time is released, and after that, the rotating plate rapidly rotates in the same direction by the force of the spring. Then, it stops when the rotating rail reaches the position for connecting the stationary rail. Therefore, trolleys,
Can be moved to a stationary rail on the opposite bank. At this time, since the space through which the hook-shaped hanging portion passes is formed by the rotation of the rotation rail, the trolley or the like can freely pass through the intersection. Once the switch has been made, as in the case of the ridge, the rail will remain in the state of the connected fence until it is manually or automatically switched again thereafter.

In that state, since the cam follower is held at a position where it does not engage with the trolley or the like, there is no problem in returning the trolley or the like.

According to the invention of claim (2), the same action as described above is achieved when the trillo or the like on the stationary roll of one of the intersecting rails enters the intersecting portion. Then, when another trolley or the like enters from the side of the stationary rail of the other rail that is crossed, the same operation as above is performed and the rail is switched.

According to the invention of claim (3), the switching is performed regardless of whether the trolley or the like sequentially enters from one direction of one rail or from any direction of each of the two rails. Done. Moreover, when the trolley or the like leaves the intersection, the other rail is automatically connected. And automatic switching is guaranteed for any stationary rail.

Embodiment First, the basic structure of the invention of claim (1) will be described with reference to FIG.

FIG. 1 (a) is a plan view of an intersection of rails according to the present invention. The solid line in the figure shows a state in which the stationary rail 9 is connected by the rotating rail 31. Now, when a trolley or the like enters from the upper stationary rail 8 in the direction of the white arrow in the figure, the rotating rail 31 rotates about the shaft 7 as shown by the imaginary line arrow and the position of the imaginary line. Occupy Therefore,
A trolley or the like can pass through the intersection and move to the lower stationary rail 8.

Several examples of a mechanism for rotating the rotating rail 31 are schematically shown in plan views in FIGS. 1 (b) to (e). A trolley, etc. enters from above in the direction of the white arrow. Rod 18
Is moved in the direction of the black arrow by the action of a lever, which will be described in detail later, the rotating plate 5 rotates about the shaft 7. This will be described in detail with reference to FIG. 1 (b).
The pivot plate 5 pivots counterclockwise as the pivot portion 16 is pulled upward. Then, the spring set pin 26 also rotates and the coil spring 36 is compressed. The pin 26 crosses the neutral line of the spring 36 when rotated by the angle α. Immediately after that, the rotation by the rod 18 reaches the limit, and the rotational force is not transmitted over the angle β, but after that, the spring 36 is extended and the rotating plate 5 is rapidly rotated until the rotating rail 31 reaches the connecting position. Rotate. These operations are performed by the pivot portion 16 and the coil spring 36.
1 (c) to (e) in which the fixed mounting position is changed, the same operation is performed. However, in the cases of (c) and (e), the spring 36 is contracted after being stretched, whereas in the cases of (b) and (d), it is expanded after being compressed. In any case, the angle β must be defined to be slightly larger than the angle α.
In addition to the above, various modifications are conceivable for the fixed position of attachment. Further, although the crossing rails crossing each other at right angles are shown in the drawings, it is needless to say that the present invention can be applied to the switching of rails crossing at an angle other than a right angle.

FIG. 2 shows an embodiment of the invention of claim (2) and FIG. 3 shows an embodiment of the invention of claim (3) as an example in which the above configuration is incorporated in an actual device.

An apparatus according to the invention of claim (2) will be described. Second
FIG. 1A is a plan view thereof, FIG. 1B is a front view showing a main part thereof, and FIG. 1C is a side view thereof. The stationary rails 8 and 9 that are orthogonal to each other face each other at an equal interval with the rotating rail 31 at the intersection. A pivot 12 is provided at the tip of a hinge bracket 3 fixed to the frame 1 just above the upper stationary rail 8 and the right stationary rail 9 in FIG. 2 (a). The middle of the lever 15 is mounted on the pivot 12,
A cam follower 39 that engages with the incoming trolley 4 is attached to the lower end of the lever 15, and one end of a rod 18 is connected to the upper end of the lever 15. The other end of the rod 18 is connected to the pivot portion 16 on the outer periphery of the upper rotary plate 5. The pivot 16 is provided separately on the upper surface and the lower surface of the rotary plate 5 in order to prevent the interference of the two rods. The rotating plate 5 is a shaft 7 that is erected at the intersection of rails.
Is fixed to the upper part of. The center of the rotating rail 31 is carried on the lower end of the shaft 7. The carrying is carried out by the rail support 28 of the L-shaped supporting piece fixed to the lower rotating plate 6 at the lower end of the shaft 7, as shown in FIG. is not. 29, 30, 32, and 33 are rail supports that support the ends of the stationary rails, and 35 is a trolley that blocks the trolley 4 that enters the intersection from the side where the lever 15 is not attached. It is a stopper. The upper rotating plate 5 is further provided with a spring set pin 26 on the outer periphery thereof. Then, a coil spring 36 is elastically mounted between the pin 26 and the spring adjusting bolt 25 of the spring adjusting metal fitting 27 provided on the frame 1. Frame 1 has stopper metal fittings 14
Is fixedly mounted, and the protruding piece 10 of the rotary plate 5 is brought into contact with the stopper bolt 34 provided on the fixed rail so that the rotary rail 31 can be accurately stopped at the connecting position.
As is clear from the figure, the frame 1 is supported by the pipe support 2. As other detailed configurations, 13 is a key plate, 19 is a spacer, and 20 is a switching lever for manually switching rails.

The operation of this device is performed as follows. At the present time shown by the solid line, the trolley 4 enters from the upper part of FIG. 2 (a) in the direction of the white solid line arrow and pushes the cam follower 39 away as shown in FIG. 2 (c) onto the turning rail 31. I'm about to move. The rotating plate 5 has finished rotating counterclockwise, and the protruding piece 10 has a stopper bolt.
Abuts 34. Therefore, the stationary rail 8 is formed as a continuous rail by the rotating rail 31, and the trolley 4
Can freely reciprocate on the rail 8. After that, when another torirow 4 enters on the stationary rail 9 from the right side of FIG.
15 is pushed and moved as shown by an imaginary line in FIG. 11B, the rotating plate 5 is rotated clockwise, and the stationary rail 9 is connected in the same manner as described above.

An apparatus according to the invention of claim (3) will be described. FIG. 3 (a) is a plan view thereof, FIG. 3 (b) is a front view showing a main part thereof, and FIG. 3 (c) is a side view thereof. It is almost the same as the one in Fig. 2, but there are major differences in the configuration, for each stationary rail, the pivot 12 and the cam follower.
The point is that a set of a lever with 39 39, a pivot portion 16 and a rod 18 is provided. The configuration of the cam follower 39 of the right group is as shown by the solid line in FIG. 3 (b).
Is in a position where it engages with the trolley 4, the left set of cam followers 39 is in a position where it does not engage with the trolley 4, and as shown by the solid line in FIG. When 39 is in a position where it does not engage with torilo 4, the lower set cam follower 39 is in a position where it engages with the trolley 4.

Therefore, at this moment, as is clear from the solid line in FIG. 3C, the turning rail 8 is connected by the trolley 4 which has entered from above in the direction of the white arrow. When 31 is crossed, the next operation occurs.
That is, since the lower set of cam followers 39 is positioned to engage the trolley 4, the trolley 4 engages with it and the lever 15
Is rotated to rotate the rotating plate 5 clockwise through the rod 18. Then, the stationary rail 9 is connected. Even if the trolley 4 enters from either direction of the stationary rail, this operation is similarly performed. However, the approach must be done sequentially, not simultaneously. In short, in this device, when the trolley 4 approaches the intersection, the rails are connected, and when the trolley 4 passes through the intersection, the rail returns to the original separation position. And
This switching is automatically performed no matter which direction the trolley enters.

Advantageous Effects of Invention According to the invention of claim (1), rails that intersect, that is, intersect at an angle to each other are connected in one behavior of a rotating rail, and a trolley or the like is formed into a rail on which it can reciprocate. be able to. Unlike the drop switch, the rotating rails do not interfere with each other. Since the center of the rotating rail is supported by the shaft, the rotation is performed extremely smoothly, and the posture of the rail when connected after rotation is reliably and stably maintained. Further, since the turning is performed by the driving of the approaching trolley or the like, no other power is required, the turning and stopping thereof are performed by a simple mechanism, and the shortest distance can be connected by a small number of switching devices. It goes without saying that such effects are exhibited.

According to the invention of claim (2), the effects of the invention of (1) can be retained for each of the intersecting rails. That is, even if the trolley or the like enters from the other rail to the intersecting portion in a connected state capable of reciprocating in only one direction, the rail is reliably connected.

According to the invention of claim (3), even if it is pushed further and the trolley or the like enters from either direction of one rail or two rails, the same switching as above is surely performed. Will be done in.

[Brief description of drawings]

FIG. 1 illustrates the basic configuration of the invention of claim (1). FIG. 1 (a) is a plan view of an intersection of rails, and FIGS. 1 (b) to (e) are rotation rail rotations. It is a top view which shows typically several examples of a moving mechanism. FIG. 2 shows an embodiment of the invention of claim (2), in which FIG. 2 (a) is a plan view thereof, FIG. 2 (b) is a front view of an essential part thereof, and FIG. 2 (c) is a side view thereof. . FIG. 3 shows an embodiment of the invention of claim (3), in which FIG. 3 (a) is a plan view thereof, FIG. 3 (b) is a front view of an essential part thereof, and FIG.
Is a side view thereof. FIG. 4 shows a conventional example. 1 ... Frame, 4 ... Trolley 5 ... Rotating plate, 7 ... Shaft 8, 9 ... Stationary rail, 12 ... Pivot 15 ... Lever, 16 ... Pivot 18 ... Rod 26 ... Spring set pin 31 …… Rotating rail 36 …… Coil spring 39 …… Cam follower

Claims (3)

[Scope of utility model registration request] 1. A rail switching device in which stationary rails are connected by a rotating rail at an intersection to form a continuous rail, in which a shaft is erected at an intersection of the rails and rotated at a lower end of the shaft. The center of the rail is supported and the center of the rotating plate is fixed at the upper end, and the middle of the lever is mounted on the pivot that is located immediately above the stationary rail. Attach a matching cam follower,
The upper end of the lever is connected to the pivotal attachment portion on the outer periphery of the rotating plate with a rod, and a coil spring is elastically mounted between the spring set pin and the frame on the outer periphery of the rotating plate to fix the coil spring and the pivotal attachment portion. The position is set to a fixed position such that the set pin crosses the neutral line of the coil spring immediately before the cam follower is disengaged from the engagement of the trolley or the like, and after that, the rotating rail is rotated to the connecting position by the elastic force of the spring. Automatic cross rail switching device. 2. The automatic cross rail switching device according to claim 1, wherein a set of a pivot, a lever with a cam follower, a pivot, and a rod is provided one set immediately above a stationary rail of each intersecting rail. 3. A set of a pivot, a lever with a cam follower, a pivot and a rod are arranged one set directly above both parts to be connected of a stationary rail forming a continuous rail, and one of them is arranged. 3. The automatic cross rail switching device according to claim 1, wherein when the pair of cam followers is in a position where it engages with the trolley or the like, the other cam follower is in a position where it does not engage.