JPS6320723B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevating and lowering conveyance device for vertically moving an object up and down.

This type of elevating and lowering conveyance device uses support means (guide rails, conveyors, etc.) provided on a moving body that rotates in a vertical circulation path and fixed side support means (guide rails, conveyors, etc.) to transport objects. This is a conventional device of this type, which is a so-called pass-through type device in which the transferred object transferred to the support means on the moving body side from one end side is sent out from the other end side. , a device disclosed in Japanese Unexamined Patent Publication No. 55-35744 is known, but in such a conventional device, the supporting means is placed in a vertical circulation path at an intermediate position between the ascending path and the descending path of the supporting device. Since a circulating movement path for the chain to be driven along is constructed, the cross-sectional area of the device becomes very large, resulting in the drawback that a large installation floor space is required.

The present invention proposes an elevating and lowering conveyance device that can solve the above-mentioned conventional problems.

An embodiment of the present invention will be described below with reference to the attached illustrative drawings.

In FIG. 1, reference numeral 1 denotes an endless circulation path consisting of an ascending path portion 2a, a descending path portion 2b, and horizontal path portions 3 at both upper and lower ends.
As shown in the figure, there are two endless chains 4a, 4b and 5a, 5b on both the left and right sides, with the upper and lower ends of the movement path of the inner chains 4a, 4b being higher than both the upper and lower ends of the movement path of the outer chains 5a, 5b. They are each suspended by four gear wheels 6 so as to be high. Reference numeral 7 denotes a motor that drives, via a transmission shaft 8, one gear wheel 6a, 6b that hangs the lower end side of the inner chains 4a, 4b. As shown in FIG. 1, a total of eight gear wheels hanging the lower ends of the chains 4a to 5b are supported by a frame 9 that can be moved upward in the event of an overload, and the motor 7 is mounted on this frame 9. A means for detecting upward movement of the frame 9 can also be used.

10 is a moving body that circulates along the endless movement path 1 while maintaining a constant vertical posture;
is a movable body supported by the movable body 10 so as to be movable in the vertical direction, and horizontally holds the transport movable body support rail 13 via a pair of left and right support arms 12 protruding from one side. ing. Therefore, the conveyance movable body support rail 13 supports the conveyance movable body 37 movably in a direction parallel to the left-right direction connecting the left and right chains 4a, 5a and 4b, 5b, and A transporting moving body support rail 13 protruding from the moving body 10 in a cantilevered manner.
As shown in FIG. 1, the descending path portion is located between the ascending path portion 2 and the descending path portion 3 of the chains 4a to 5b when viewed from one side. 14 is disposed at a stop position on each level of the movable body 10 and moves the movable body 11 on the stopped movable body 10 to the transportation movable body guide rails 15 and 16 on the fixed side of the support rail 13. This is a pushing means for pushing up to the height of connection.

As shown in FIGS. 3 and 4, the mobile body 1
0 is supported at both upper and lower ends by a pair of left and right guide rails 17 installed in the ascending route section 2a and the descending route section 2b via a main guide roller 18 and a left and right steady rest roller 19, Furthermore, a horizontal shaft 20 fixedly protruding concentrically from the upper end on both the left and right sides connects a pair of inner left and right chains 4a,
4b so as to be rotatable. 21 is a lever whose upper end is fixed to the outer end of the horizontal shaft 20, and as shown in FIGS. 7 and 8, its lower end (corresponding to the lower end of the movable body 10) A long hole 2 provided in the lever 21 is attached to a horizontal shaft 22 concentrically protruding from the chains 5a and 5b.
1a, relative movement in the vertical direction and the horizontal axis 2
They are engaged to allow rotation about 2.

With this configuration, as shown in FIG. is the horizontal axis 20
The lever 21 prevents the moving body 10 from swinging around the vertical position, and the movable body 10 circulates up and down while always maintaining a vertical posture.

The movable body 11 has a pair of left and right vertical guide rails 23 that also serve as the frame of the movable body 10.
It is supported so as to be movable up and down via a main guide roller 24 and a steady rest guide roller 25.

As shown in FIGS. 2 and 5, the lifting means 14 includes a lifting platform 29 that is supported by a pair of left and right guide rails 27 of a fixed frame 26 via guide rollers 28 so as to be able to rise and fall, and An anti-buckshear 31 pivotally supported on the stand 29 via a support shaft 30, a cylinder unit 32 for raising and lowering the lifting table 29, and the lifting table 2
9, a stopper 33 for regulating the rising end. The anti-back pusher 31 pushes up the rear end portion 11a of the movable body 11.

Reference numeral 34 denotes a normally closed stopper that can be opened and closed at the exit side of the conveyance movable body transferred onto the conveyance movable body support rail 13. In FIGS. This is a cylinder unit that is opened and operated through the push-up means 14, and is arranged in parallel with the pushing-up means 14.

Next, how to use it and its effects will be explained. motor 7
The chains 4a and 4b are driven by the horizontal shaft 20.
The movable body 10 is circularly moved in the direction shown by the arrow in FIG. At this time, chains 5a and 5b
is pulled via the lever 21 by the movable body 10 moving between the ascending path portion 2a and the descending path portion 2b, and as a result rotates together with the chains 4a and 4b.

When the horizontal shaft 20 moves laterally on the horizontal path section 3, the lower end of the lever 21 engages with the horizontal shaft 22 of the endless chains 5a, 5b through the elongated hole 21a, so that the movable body 10 roller 18,1
9 comes off the guide rail 17, the moving body 10
does not swing around the horizontal axis 20 together with the lever 21, and each moving body 10 circulates through the endless circulation movement path 1 while always maintaining a constant posture.

As shown in FIGS. 2 and 3, when each movable body 10 is at a stop position at each level, that is, at the lower limit position on each movable body 10, the conveying movable body support rail 13 of the movable body 11 is on the fixed side. When the movable body 10 reaches a position slightly lower than the transport movable body guide rails 15 and 16, the driving of the chains 4a and 4b is interrupted and each movable body 10 is stopped. At this time, the movable body 11 at the lower limit position on each movable body 10 is at the A position shown by the imaginary line in FIG. 5, and the rear end portion 11a is
Anti-bucking pusher 31 of pushing up means 14
is pushed down to reach its upper position. Thereafter, when the lifting platform 29 is raised to a position where it comes into contact with the stopper 33 by the cylinder unit 32 of each lifting means 14, the anti-back pusher 31 on the lifting platform 29 moves against the stationary moving body 10. The movable body 11 is pushed up to the fixed stop position B via the rear end portion 11a.

The conveyance movable body support rail 13 of the movable body 11 that has reached the fixed stop position B becomes in a straight line with the fixed side conveyance movable body guide rails 15 and 16 which are at the same level. In this state, as shown in FIG. 3, the conveyance movable body 37 waiting on the fixed side conveyance movable body guide rail 15 is moved onto the support rail 13 on the movable body 11 by an appropriate push transfer means. You can transfer to.

The transport moving body 37 may be of any type, but for example, the transport moving body guide rails 15, 16,
and a pair of front and rear trolleys 38 movably sitting on the support rail 13 (see Figures 3 and 4).
and a hanger 39 suspended from these trolleys 38 can be used. 40 is an object to be transported suspended from the hanger 39.

When the transfer of the conveyance movable body 37 onto the conveyance movable body support rail 13 is completed, the lifting platform 29 is lowered to the lowering limit position by the cylinder unit 32, and the movable conveyance body 37 supported by the anti-buck pusher 31 is lowered to the lowering limit position. The body 11 is lowered together with the support rail 13 supporting the conveying moving body 37 to the lowering limit position where it is supported by the moving body 10.

After this, chain 4 is moved again by motor 7.
a and 4b to move the movable body 10 along the endless circulation movement path 1. When transferring the conveyance movable body 37 that is transported together with the movable body 10 to the fixed side conveyance movable body guide rail 16 at the target level, transfer it to the fixed side conveyance movable body guide rail 16 at the target level as described above. Support rail 1 on movable body 11
3, and push and transfer the conveyance movable body 37 on the support rail 13 onto the fixed side conveyance movable body guide rail 16 using an appropriate push transfer means.

At this time, before sending out the conveyance moving body 37,
The corresponding cylinder unit 35 is actuated to press and move the rod 36 on the movable body 11 side, thereby opening the normally closed stopper 34 against its closing force.

In the descending path portion 2b, the anti-back pusher 31 comes into contact with the rear end portion 11a of the movable body 11 and obstructs the downward movement of the movable body 10. For example, as shown in FIG. A cam plate 41 for lowering the anti-buckshear 31 when the lifting platform 29 returns to the lowering limit position can be attached to the lifting means 14 disposed on the lowering path portion 2b.

Note that if the movable body 10 can be accurately stopped at a predetermined position, the movable body 11 may be omitted and the support arm 12 may be provided directly protruding from the movable body 10.

The device of the present invention can be implemented and used as in the embodiments described above, and its greatest feature is that both left and right sides are supported by endless rotating bodies for circulation drive (chains 4a to 5b in the embodiments). The object to be conveyed (transporting movable body 36 in the embodiment) is moved in a direction parallel to the left-right direction connecting the endless rotary bodies on both left and right sides to the movable body that circulates up and down in a vertical circulation path while maintaining a fixed vertical posture. A support means (in the embodiment, the conveyance moving body support rail 13) that supports the
The movable body is supported by protruding in a cantilever shape from the front and back to one side, so that when viewed from the left and right sides, either the ascending path or the descending path of the support means is the vertical movement of the endless rotating body. A normally closed stopper is disposed on the conveyed object exit side of the support means, and an opening operation tool (rod 36 in the embodiment) for the normally closed stopper is disposed, An operation means (cylinder unit 35 in the embodiment) for operating a stopper opening operation tool of the support means stopped at a predetermined position is disposed beside the ascending and descending circulation path of the movable body.

According to such a device of the present invention, an object to be transported transferred from the fixed side support means on an arbitrary floor onto the moving body side support means is transferred onto the fixed side support means on a different arbitrary floor, and transferred to the fixed side support means on the movable body side. It is very convenient in terms of layout because the moving direction of the transported object is always constant, compared to the case where the transported object must be moved backwards before being sent out. It is.

Furthermore, compared to conventional devices of this type, the space in the middle of the lifting path of the endless rotary body for circulating drive, which inevitably occurs, is used as one of the lifting paths of the support means, thereby reducing the cross-sectional area of the entire device. This allows effective use of the installation floor surface.

Furthermore, according to the configuration of the present invention, the normally closed stopper attached to the exit side of the support means that supports the conveyed object so as to be able to pass therethrough prevents the conveyed object from moving when it is transferred onto the support means or during vertical transportation. This eliminates the risk of the conveyed object accidentally falling from the outlet side of the support means, improving safety. Since it was set up in
The structure of the supply system for power (fluid pressure, electric power, etc.) to the operating means becomes easy, and the possibility of failure is reduced.

In the embodiment, the horizontal path portion 3 was formed at the U-turn portion between the ascending path portion 2a and the descending path portion 2b, but at both the upper and lower ends of the endless circulation path 1,
An arcuate U-turn path section may be formed by using one gear wheel with a large diameter that hangs each of the endless rotation chains 4a to 5b separately. Furthermore, although a transportation moving body support rail is shown as the means for supporting the conveyed object, it may be a tray that directly supports the conveyed object, various conveyors, or any other means for supporting the conveyed object.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall side view, FIG. 2 is a front view thereof, FIG. 3 is an enlarged front view of main parts, and FIG. 4 is a plan view thereof. 5 and 6 are longitudinal sectional side views for explaining the operation, FIG. 7 is an enlarged vertical sectional front view of the main parts of the present invention, and FIG. 8 is a longitudinal sectional side view of the main parts. DESCRIPTION OF SYMBOLS 1... Endless circulation movement path, 4a-5b... Endless rotation chain, 10... Moving body, 11... Movable body, 13... Moving body support rail for conveyance, 14...
Push-up means, 15, 16... fixed side conveyance movable body guide rail, 17, 23, 27... guide rail, 20, 22... horizontal shaft, 21... lever,
21a...Elongated hole, 29...Elevating platform, 31...Anti-back pusher, 32...Cylinder unit, 33...Stopper, 37...Moving body for transportation.

Claims (1)

[Claims] 1. A movable body that circulates up and down in a vertical circulation path while maintaining a constant up and down posture with its left and right sides supported by endless rotating bodies for circulation drive, parallel to the left-right direction connecting the endless rotating bodies on both left and right sides. A support means for supporting the conveyed object so as to be able to pass therethrough in a direction is supported by protruding in a cantilever shape from the moving body toward one side of the front and back, so that when viewed from one side of the left and right, the support means Either one of the ascending path and the descending path of the endless rotating body is located in the middle of the ascending and descending path of the endless rotating body, and a normally closed stopper is disposed on the conveyed object exit side of the supporting means. An elevating conveyance device comprising: an operating tool for opening a normally closed stopper; and an operating means for operating the operating tool for opening the stopper of the support means, which is stopped at a predetermined position, on the side of the elevating circulation path of the movable body.