JPS59143752A - Truck type asynchronous conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an asynchronous transport device that includes a transport vehicle that moves along guide rails. More specifically, a drive means such as a chino that moves along this route is provided on the side of the carriage moving route, and a gear wheel that meshes with the drive means is pivotally supported on the side of the carriage. In the trolley-type conveying device, the conveying carriage is moved forward together with the driving means by fixing the gear, and the conveying carriage is stopped by releasing the braking action of the braking means. The purpose is to allow the cart to be moved freely back and forth by hand within a certain section.

Hereinafter, one embodiment of the present invention will be described based on the attached illustrative drawings. In FIG. 1, 1 is a guide rail constructed along a horizontal circulation path, and 2 is movably supported on the guide rail 1. 6 is a drive chino for moving the transport vehicle 2 forward (means for driving this drive chino 6 is not shown), and 4 is a transport vehicle stopping means.

As shown in FIGS. 2 and 3, the guide rail 1 includes an upper guide rail portion 1a and a lower force idle rail portion 1b.
The carriage 2 has a loading platform 2a which is located on one side of the power idle rail 1 at approximately the same level as the lower kite rail 1b.
and a vertical wall n2b adjacent to the guide rail 1. The drive chain 6 includes a vertical shaft roller 3a supported at both upper and lower ends of the link connecting bin, and a supporting horizontal shaft roller 3b pivotally supported by the lower link, and is located directly above the lower guide rail portion of the guide rail 1. The rollers 5a,
By loosely fitting i5b, it is supported to move along a fixed path. 6 is a guide rail vertical wall portion 1c
The mounting screws are screws that are engaged with the upper and lower two engagement grooves 7 integrally formed on the back side of the guide rail support bracket (not shown). It will be done.

As shown in FIGS. 3 and 4, the transport vehicle 2 includes a pair of front and rear horizontal axis rollers 8 that ride on the vertical wall of the upper guide rail of the guide rail 1, and a pair of front and rear horizontal shaft rollers 8 that abut against the back side of the upper guide rail section 1a. , a pair of front and rear vertical axis rollers 10 that come into contact with the front side of the lower guide rail section 1b, and a vertical axis roller 11 that comes into contact with the back side of the lower guide rail section 1b at a position corresponding to the rollers 10. A sprocket wheel 12 movably supported on the guide rail 1 engages with the drive chain 6, and is fixed to a vertical rotating shaft 14 supported via a bearing 15 on the back side of the vertical wall R2b of the transport vehicle. There is. Reference numeral 15 denotes a vertically movable cone clutch type braking means, and as shown in FIG. The cone-shaped braked body 1 is loosely fitted and
A movable brake body 16b is loosely fitted into the brake body 6a so as to be pressable and detachable.
and has.

17 is an operation means for releasing the brake from the cone clutch type braking means 15, and includes a pair of brake release levers 18.
, a vertical movement operating lever 22 extending forward, and both levers 18
．． 22, and a sub-roller 68 that is pivotally supported on the side adjacent to the guide rail 1 at an intermediate position of the operation lever 22. The brake release lever 18 is attached to a horizontal support shaft 18 as shown in FIG.
a is pivotally supported on the back side of the vertical wall portion 2b of the conveyance vehicle so as to be vertically swingable, and its free end is connected to the movable brake body 16b.
The pins 20 are engaged with a pair of pins 20 protruding from the parallel flat side portions 19 through elongated holes 21 .

Therefore, rotation of the movable brake body 16b is prevented by this lever 18. The -L lower movement operating lever 22 is pivotably supported on the back side of the general transport vehicle vertical wall portion 2b by a horizontal support shaft 25 so as to be vertically swingable, and the tip thereof is connected to the sub roller' with respect to the TP operation lever 22. A cam driven roller 25 that is rotatable around the horizontal support shaft 24 and a brake spring 26 (see FIG. 3) that applies an appropriate rotational resistance force to the roller 25 are provided on the opposite side to the side where the cam follower 58 is located. ing. The braking force of this brake spring 26 can be adjusted with an adjustment nut 27. The link mechanism 28 includes a link 29a that integrally extends upward from the operating lever 22, a link 29b that connects the tip of the link 29a and the intermediate portion of the brake release lever 18,
and connecting pins 50a and 50b.

Reference numeral 51 denotes a spring that urges the braking means 15 to a braking state, and the spring receiver, which is internally housed in the fixed bracket 32 and can be raised and lowered, is connected to the brake release lever 18 via the seat 36.
The position of the link connecting pin 150b is pressed downward, and the pressing force can be adjusted by the adjustment screw 34.

Reference numeral 65 denotes a cam for stopping the following conveyance truck, which is attached to the rear side of the vertical wall portion 2117 of the I-feeding truck in a state of extending rearward, and is used to stop the following conveyance truck when the following conveyance truck approaches, as shown by the imaginary line in FIG. , is provided at a position where the operating lever 22 of the following IB transport vehicle can be moved upward via a roller 25 at its tip, and a contact surface 66 of the following IB transport vehicle is provided at the end thereof.
A stop bar 67 that comes into contact with is attached.

39 is the operating lenomer 22 via the sub-roller 68.
This is a cam rail for moving up the carriage 2, in a section where it is necessary to move the carriage 2 freely by manual operation.
As shown by the imaginary line in FIG. 3, the cam rail of the idle rail 1 is attached to the section 40. As shown by the phantom line in FIG. The same cam 41 as the cam 55 for stopping the subsequent transport vehicle is placed in the operating position (the passing position of the cam 55 for stopping the rear 11 transport vehicles)
Movement 5 between
The position of the cam 41 can be switched manually or automatically.

Next, the method of use and operation will be explained. Normally, as shown in FIG.
The movable brake body 16b is biased downward and is tightly fitted to the cone-shaped brake body 16a, thereby fixing the sprocket wheel 12 so that it cannot rotate. Follower gear ζ, sprocket wheel 1 that engages with the drive chaino 6 as the drive chaino 6 moves in the transport vehicle forward direction 42
2 moves along the guide rail 1 in the forward direction 42 together with the drive cheno 6.

When stopping the approaching transport vehicle 2 at a predetermined stop position, the cam 41 of the stop means 4 disposed at the stop position is moved backward from the non-operating position shown by the imaginary line in FIG.
By manually or automatically switching to the operating position where the transport vehicle stopping cam 65 passes, the operating lever 22 of the transport vehicle 2 approaching this stop position is moved so that the roller 25 rides on the cam 41. It is moved upward around the horizontal support shaft 23 by two keys. As a result, the brake release lever 18 is pushed upward around the horizontal support shaft 18a via the links 29a and 29b, and the movable brake body 16b of the brake means 15 resists the urging force of the spring roller 1 as shown in FIG. It is raised as shown, and the tight fit with the cone-shaped braked body 16a is released. In other words, the braking means 15 is in a brake-released state, and the tin wheel 7) wheel 12 is in a freely rotating state, so that it rotates as the driving chino 6 moves, and the conveying cart 2 becomes free. The carriage 2 that has become free in this way stops at a predetermined position due to the contact between the stopper 4i5 provided at the tip of the cam 41 and the front end contact surface 36. A vehicle fixed position locking means may also be used.

Load transfer work between the stopped transport vehicle 2 and the loading platform 2a,
Alternatively, after completing various operations on the workpieces on the loading platform 2a, the cam 41 of the stopping means 4 is retracted to a non-operating position so that the operating lever 22 can be moved downward, and the transport vehicle 2 can be moved forward if possible. By tightening, the suspension wheel 12 is automatically braked by the braking force of the braking means 15 or the spring 51, so that the carriage 2 starts moving in the forward direction of h; While the transport vehicle 2 is stopped at the stop position as described above, when the following transport vehicle 2 approaches the position where it collides with the stopped transport vehicle 2, the following transport vehicle 2 is stopped as shown by the imaginary line in FIG. Similarly to when the operation lever 22 of No. 2 is moved upward by the cam 41 of the stop means 4, it is moved upward by the cam 65 for stopping the subsequent conveyance cart of the stop No. 1 transport cart 2, and therefore, as described above, the f & In illllll
The feeding vehicle side moving means 15 is switched to a brake-released state, and the following conveying vehicle 2 also automatically becomes free and stops with the contact surface 36 in contact with the rear end stopper 37 of the cam roller 5. I will do it. In this way, the carriage 2 can be automatically strained one after another starting from the position of the stop means 4.

Also, within the horizontal copying IR path of the transport vehicle 2, the cam rail 59
In the section where the sub-roller '5 of the operating means 17
8 rides on this cam rail 69, the operating lever 22 moves upward, and the braking action of the braking means 15 on the sprocket wheel 12 is released in the same way as when it is released by the cam 65 or 41. It becomes a free state. Moreover, as long as the sub roller 58 is on the cam rail 69, Subrogano 1 boiler 12
Since the brake on the cam rail 9 remains released, the carrier 2 can be moved freely by manual operation within the section where the cam rail 9 is located.

Note that the configuration of the operating means 17 is not limited to that shown in the embodiment. For example, if the sub roller 38 is
8, or the cam driven roller 25 can be omitted and the cam 65 or 41 can be applied to the sub roller 58 (to stop the transport cart).

The trolley-type asynchronous transport device of the present invention can be implemented and used as described above, in which a rotatable toothed wheel (in the embodiment, a sprocket) wheel 12 is mounted on a transporter movably supported on a guide rail. ), a braking means for switching the gear between a fixed state and a rotatable state (in the embodiment, a cone clutch type braking means 15 was used, but the invention is not limited thereto), and a braking means for energizing the braking means to a braking state. a spring for fixing the gear wheel; an operating means for switching the braking means to a brake release state; and a cam for stopping the succeeding carriage that operates the operating means of the succeeding first carriage when the succeeding carriage approaches. and a driving means such as a chino that engages with the gears and moves along the guide rail, and a transport means that operates the driving means in the same way as the cam for stopping the following bogie. Since it is provided with a trolley stopping means and a cam rail that continuously holds the braking means in a brake-released state via the operating means in a predetermined section to enable free movement of the transport trolley, it is common. It is possible to asynchronously advance and stop each of the plurality of transport vehicles belonging to the movement route of the transport vehicle, and to use it conveniently as a highly flexible transport system. It has a feature that the braking action of the braking means is automatically released continuously, and the carrier can be freely moved back and forth by manual operation. Therefore, the specific section can be conveniently used as a work line in which parts are sequentially assembled onto the workpieces on the transport vehicle while transporting the transport vehicle in sequence, or as a test line in which different tests are performed sequentially. .

Further, the transport vehicle in the specific section is driven by another driving means ((+
1, t auxiliary chain conveyor with Sonya, etc.)
It is also possible to configure the device to be forced to drive at different speeds.

[Brief explanation of the drawing]

Figure 1 is a schematic plan view of the entire structure, Figure 2 is a guide rail and I
A perspective view showing the transportation trolley; Figure 3 is a vertical cross-sectional side view of the main parts;
FIG. 4 is a longitudinal sectional rear view of the main part, and FIG. 5 is an enlarged longitudinal sectional view showing the vicinity of the cone clutch type braking means.

Claims (1)

[Claims] A conveyance vehicle movably supported by a guide rail includes a rotatable tooth wheel, a braking means for switching the tooth wheel between a fixed state and a rotatable state, and a braking means for switching the tooth wheel between a fixed state and a rotatable state. A spring for fixing the wheel, an operating means for switching the braking means to a brake release state, and a cam for stopping the following carriage that operates the operating means of the following carriage when the following carriage approaches, and the guide rail On the side, there is a drive means such as a chino that engages with the gears and moves along the guide rail, a transport vehicle stop means that operates the operation means in the same manner as the first and second vehicle stop cams, and a predetermined section. a cam rail for continuously holding the braking means in a brake-released state via the operating means to enable free movement of the transport vehicle.