JP3097722B2 - Transfer equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device which can be mounted on a transfer device such as a traveling vehicle or a stacker crane for automatically transferring a load to a shelf or the like. Things.

[0002]

2. Description of the Related Art A transfer fork of this type is a running fork type for picking up a load, a conveyer type for picking up a load from both sides, or provided at an end of the load. There is known a hook-out type in which a load is engaged with an engaged portion to pull out a load. However, in a running fork type, a running-fork retreat space is secured below a load, and a load above and below the load is secured. In order to install a pair of left and right load receiving members supporting the bottom left and right sides of the load on the shelf side, between the load storage sections adjacent in the level direction on the shelf side Since a column for supporting the load receiving member is required, there is a disadvantage that the storage efficiency on the shelf side is reduced.

The running conveyor type and the gripping conveyor type solve the problem of the running fork type. However, the gripping conveyor type requires the load to be gripped by a pair of right and left conveyors.
A load having a large variation in the load width cannot be handled, and a driving means for driving a pair of left and right sandwiching conveyors to move in and out, a means for driving the two conveyors to rotate, a driving means for moving the two conveyors close to and away from each other, etc. Is necessary, and the mechanism is complicated and a significant increase in cost is unavoidable. Furthermore, the hook-out type cannot be handled unless the load has a dedicated engaged portion at the end,
There is a problem in versatility.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are indicated by reference numerals in the embodiments described later. The transfer device according to the present invention includes a load support (3) on which a load (W) is horizontally transferred between the load support (2), a load support (3), and a load support.
(2) the moving member located on the side of the load transfer path between
(4), a retracting drive means (6), and a pair of front and rear loading and unloading arms pivotally supported at both front and rear ends of the retractable moving member (4).
(7a, 7b) and, a transfer device having an arm driving means (9), projecting and retracting the drive means (6), the whole advancing and retracting the moving member (4)
Withdrawal position (P1) located on the lateral side of the load support (3) ,
The entire moving member (4) is positioned laterally on the load support (2).
Arm moving means (9) for reciprocating the retreating member (4) in the load transfer direction with respect to the advancing position (P2) to be placed.
Is a pair of front and rear loading and pushing arms (7a, 7b),
It is intended to swing driven between collapsed working posture substantially the collapsed horizontally into upright retracted position (S1) and NiUtsuri mounting path (S2), projecting and retracting
When the moving member (4) is at the advanced position (P2), a pair of front and rear
The retraction push-out arms (7a, 7b)
So that it is located outside the front and rear end faces in the load transfer direction.
It has a feature in the configuration.

[0005] In order to reliably pull in and push out and transfer even a load having a wide width, load-and-retract moving members (4, 5) supporting load pull-in and pushing-out arms (7a to 8b) at both front and rear ends are provided.
Arranged on both left and right sides of the load transfer route, the retraction drive means (6)
A pair of left and right moving members (4, 5) are configured to move in and out in conjunction with each other in the same direction, and the arm driving means (9) is provided with the loading and pushing arms (7a, 8a) on the same front and rear sides. (7b, 8
b) can be configured to swing and drive in conjunction with the same posture.

Of course, when the width of the load is relatively narrow, if the length of the load pulling-in / out arm (7a, 7b) is appropriately increased, the retractable moving member (4) is provided only on one side of the load transfer path. Then, the falling action posture (S) protruding from the one side moving member (4)
The load (2a) can be pulled in or out by the arm (7a or 7b) .However, when disposing the moving members (4,5) on both sides of the load transfer path as described above, If one or both of the moving members (4,5) are configured to be able to move laterally and the distance between the moving members (4,5) can be changed, various loads with different widths can be handled. Can be transferred without any problems.

The retraction drive means (6) is supported by the load support table (3) so as to be movable in the load transfer direction, and supports an intermediate moving member (4) which is movably supported in the load transfer direction. (11), a first drive unit (13) for driving the intermediate moving body (11) to move in and out, and moving in and out of the intermediate moving body (11) in conjunction with the movement of the intermediate moving body (11). Second drive unit (14) for moving member (4) in the same direction
The arm driving means (9) is pivotally supported by a driven member (28) supported on the load support table (3) side so as to be movable in the load transfer direction, and a reciprocating member (4). A back-and-forth swing lever (30), a transmission mechanism (31) for converting the fore-and-aft swing of the lever (30) into a swing of a pair of front and rear loading and pushing arms (7a, 7b), and an intermediate moving body (11) (28) suspended between the front and rear ends of the
And a transmission cable (33) connected to the lever (30) and a driven member (2
8) and a drive unit (34) for moving back and forth, so that the arm drive as well as the motor (24) with a speed reducer that constitutes the first drive unit (13) of the retraction drive means (6). The motor with reduction gear (43) constituting the drive section (34) of the means (9) can also be arranged on the load support base (3) side, not on the moving side moving in the load transfer direction.

[0008] A pair of front and rear loading and pushing arms (7a,
7b) can be interlocked in the opposite direction to switch to the opposite posture. In this case, when the load on the load support (3) is pushed out to the load support section (2) by the load pull-in / out arm (7a or 7b) in the lying action position (S2) located behind the load and transferred. , Without changing the posture of the arms (7a, 7b), moving the retractable member (4) to the original retracted position (P1).
You can move it back up to. However, the pair of front and rear loading and pushing arms (7a, 7b) may be configured to be driven in conjunction in the same direction so as to switch to the same posture.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 1 denotes a transfer device of the present invention, which A load support 3 on which the load W is horizontally transferred between the load support 3 and loading / unloading moving members 4, 5 disposed on both left and right sides of a load transfer path between the load support 3 and the load support 2; And a pair of front and rear loading / extruding arms 7a, 7b and 8a, 8b pivotally supported at the front and rear ends of each of the back and forth moving members 4, 5, and an arm driving unit 9. . The load support 3 can be constituted by a conveyor 10 capable of supporting and transporting the load W in the load transfer direction, but depending on the type of the load W, a fixed plate that slidably supports the load W. And when the conveyor 10 is used, various types such as a belt conveyor and a roller conveyor can be used, and those that idle with the movement of the load W to be transferred, A motor driven at the same speed as the speed can be used.

The retraction drive means 6 reciprocates the retraction members 4, 5 in the load transfer direction between the retreat position P1 on the load support base 3 and the advance position P2 on the load support 2 side. Things,
Intermediate moving bodies 11 and 12 supported by the load support table 3 so as to be movable in the load transfer direction and supporting the retreating members 4 and 5 so as to be movable in the load transfer direction. A first drive unit 13 that retreats and a second drive unit 14 that moves the retreating members 4 and 5 in the same direction with respect to the intermediate moving bodies 11 and 12 in conjunction with the movement of the intermediate moving bodies 11 and 12; It is composed of

More specifically, referring to FIG. 1 to FIG. 3 and FIG. 7, each of the intermediate moving bodies 11 and 12 is loaded on a slide guide 17 mounted above the fixed rail members 15 and 16. The movable body 1 is supported so as to be movable in the
The moving members 4 and 5 are supported on the moving members 1 and 12 via a slide guide 18 mounted below the moving members 4 and 5 so as to be movable in the load transfer direction. The first driving unit 13 of the retraction driving means 6 includes the intermediate moving bodies 11 and 12
, The pinion gears 20a and 20b meshing with the respective rack gears 19, the bevel gear units 21a and 21b for linking the two pinion gears 20a and 20b and the transmission shaft 22, and the driving gear meshing with one of the pinion gears 20a. It comprises a motor 24 with a speed reducer having a gear 23. The second drive unit 14 includes gear wheels 25a, 25b pivotally supported at the front and rear ends of each of the intermediate moving bodies 11, 12, and chains 26a, 26b suspended between the gear wheels 25a, 25b. And each chain 26
a and 26b are located at the longitudinal center of each of the fixed rail-shaped members 15 and 16, and the other end is located at each of the moving members 4 and 4.
5 are respectively connected to the central portion in the length direction. Of course, a take-up mechanism for each of the chains 26a and 26b can be provided as needed.

According to the retracting drive means 6 having the above structure, the motor 24 with the speed reducer is operated, and the two pinion gears 20a,
By rotating and driving the intermediate moving bodies 11 and 12 in the same direction and at the same speed, the chains 26a and
By the function of 26b, the moving members 4 and 5 move in association with the intermediate moving bodies 11 and 12 in the same direction as the moving directions of the intermediate moving bodies 11 and 12 at the same speed. Therefore, each of the intermediate moving bodies 11 and 12 is moved by the first driving unit 13 in FIG.
1 / of the distance between the retreat position P1 and the advance position P2 shown in FIG.
By moving by two, the retreating members 4 and 5 move by a distance between the retreating position P1 and the retreating position P2 when viewed from the load support table 3 side, and the retreating members 4 and 5 reach the retreating position P2. The retreating members 4 and 5 have approximately half the length of the load support 3.
Are supported on the distal end portions of the intermediate moving bodies 11 and 12 projecting from the load carrier 3, and the entire length of the intermediate moving bodies 11 and 12 protrudes outward from the load support 3.

The arm driving means 9 oscillates the pair of front and rear load pulling-in / out arms 7a to 8b between a standing / retreating posture S1 and a lying-down operation posture S2 which has fallen substantially horizontally into a load transfer path. 1B and FIGS. 4 to 8
As shown in FIG.
A driven member 28 supported inside a slide guide 27 via a slide guide 27 so as to be movable in a load transfer direction, and a left and right laterally supporting shaft 2 at a substantially central position in the length direction of the moving members 4 and 5.
9, a back and forth rocking lever 30 pivotally supported by
A pair of front and rear loading and pushing arms 7a
Transmission mechanism 31 for converting the swinging motion into a swing motion of
Tooth wheels 32a, 32 pivotally supported inside the front and rear ends of 1, 12
b, a transmission cable 33 such as a chain, which is hung between the two gear wheels 32a and 32b, both ends of which are connected to the driven member 28, and whose intermediate portion is locked to the free end of the lever 30; And a drive unit 34 for moving the.

The power transmitting mechanism 31 has rotating shafts 35a, 35b having loading and pushing arms 7a-8b attached to the outer ends thereof and supported concentrically in the moving members 4, 5 in parallel with the longitudinal direction thereof. And bevel gears 36a and 36b attached to the inner ends of both rotating shafts 35a and 35b;
And a bevel gear 37 interlockingly connected to the front-rear swing lever 30 and meshing with the two bevel gears 36a, 36b. The swinging movement of the lever 30 causes the two load pull-in / out arms 7a, 7b (arms 8a, 8b). Are configured to swing in directions opposite to each other. The drive unit 34 is provided with a rack gear 38 mounted inside one end in the longitudinal direction of the driven member 28 supported inside each of the fixed rail members 15 and 16, and a rack gear 38 mounted on a common transmission shaft 39. 38, a pair of pinion gears 4
0 and a motor 43 with a speed reducer that drives the transmission shaft 39 via gears 41 and 42.

According to the arm driving means 9 described above, by appropriately increasing the swing resistance of the loading and pushing arms 7a to 8b, as shown in FIGS. When 5 is driven in and out as described above,
With the movement of the movable members 4 and 5 with respect to the intermediate moving bodies 11 and 12, the transmission cable 33 only rotates around the two tooth wheels 32a and 32b, and the transmission cable 3
3 does not move relatively. Therefore, the loading and pushing arms 7a to 8a in the erecting / retracting posture S1 and the lying-down operation posture S2.
The position of b does not change due to the movement of the moving members 4 and 5.

When the posture of the loading / extruding arms 7a to 8b is switched, the driving unit 3 of the arm driving means 9
4, a pair of pinion gears 40 on a transmission shaft 39 are rotated by a motor 43 with a speed reducer, and the driven members 28 are respectively connected to the fixed rail members 15 and 16 via rack gears 38 as shown in FIG. To move. As a result,
Since the chain 33 hung on the intermediate moving bodies 11 and 12 is rotated to swing the forward and backward swing arm 30 on the side of the moving members 4 and 5, the forward and backward swing of the arm 30 interlocks. Thus, each of the loading and pushing arms 7a to 8b swings in opposite directions to each other, and one arm 7a, 8a (or 7b,
8b) is switched from the erecting / retracting posture S1 to the lying action posture S2, and at the same time, the other arms 7b, 8b (or 7) are switched.
a, 8a) is switched from the falling action posture S2 to the standing / retreating posture S1.

Each of the loading and pushing arms 7a to 7a
8b, the swing range is limited by a stopper or the like so that it can swing only within a range of 90 degrees between the standing / retreating posture S1 and the falling action posture S2.
1 and S2, in order to stably hold the arms 7a to 8b, for example, the posture holding means 44 shown in FIGS.
Can be added.

The posture holding means 44 is provided for each of the arms 7a to 7a.
8b may be provided side by side for all the rotating shafts 35a and 35b that support the outer end, or two rotating shafts 35a and 35b interlockingly connected via bevel gears 36a, 36b and 37.
May be provided side by side.
The following description will be made by taking an example of the posture holding means 44 provided alongside the rotary shaft 35b. A cam follower lever 45 attached to the rotary shaft 35b and a support shaft 46 having one end mounted on the extension and retreat members 4 and 5 parallel to the rotary shaft 35b. And a tension coil spring 48 for urging the cam 47 toward the cam driven lever 45 side.

Thus, the inner pressing surface 47a of the cam 47
Is a roller 4 supported at the tip of a cam driven lever 45.
5a, the cam 47 moves in a direction opposite to the biasing direction of the spring 48 by the cam driven lever 45 when the loading and pushing arms 7a to 8b are at a neutral angle of 45 degrees between the two positions S1 and S2. When the arms 7a to 8b swing from the neutral angle to any of the postures S1 and S2, the greater the swing angle, the more the spring 48 swings in the biasing direction. The moving amount is configured to be large. Therefore, when the loading / extruding arms 7a to 8b are switched to the standing / retracting posture S1 or the falling action posture S2 by the arm driving means 9, the arms 7a to 8b are held in the posture S1 or S2 by the urging force of the spring 48. Will be.

The transfer apparatus 1 of the present invention configured as described above, for example, as shown in FIG. 10, between the shelves 50 and 51 provided with the load support 2 (see FIG. 1). On the transport train 52 provided so as to be able to travel along, the moving member 4 in the left and right horizontal direction orthogonal to the running direction of the train.
5 can be mounted and used in the moving direction. In this case, when the load support portions 2 of the shelves 50 and 51 are erected in a plurality of upper and lower stages, a transport train 52 is provided for each load support portion 2 of each stage. When a carriage capable of moving up and down is provided, the transfer device 1 is mounted on the carriage, and the transfer device 1 can be made to correspond to a plurality of upper and lower load supports 2. Is also good. 53a and 53b are a pair of left and right guide rails for guiding the transport train 52.

Thus, on the load supporting portion 2, a gap D where the load pulling-in / out arms 7a to 8b in the standing / retreating posture S1 and the retractable moving members 4 and 5 supporting the same can move in and out.
In the state of securing between the loads W adjacent in the train traveling direction,
The load W is placed in parallel in the train traveling direction. The load W has a width smaller than the distance between the moving members 4 and 5 and a length in the depth direction is shorter than the entire length of the moving members 4 and 5.

When unloading the load W placed on the load support 2, the transport train 52 is stopped at a predetermined position immediately adjacent to the load W, as shown by a virtual line in FIG. , The loading and pushing arm 7a on the side close to the load W to be carried out,
The moving members 4 and 5 in the state where 8a (or 7b, 8b) is in the standing and retracting posture S1 are advanced from the retreat position P1 to the advanced position P2 by the retreat driving means 6. When the moving members 4 and 5 reach the advance position P2, the front and rear ends of the moving members 4 and 5 are located at positions protruding slightly forward and rearward from the front and rear ends of the load W to be carried out.

Next, the arm driving means 9 is operated, and as shown by the solid line in FIG. 1, the pair of left and right loading and pushing arms 7a, 8a (or 7b, 8b) on the advancing direction side are lowered from the standing / retreating posture S1. Switching to the action posture S2,
The arm is caused to enter behind the load W to be carried out, and the rear load pulling-out arms 7b, 8b (or 7a, 8a) in the lying action posture S2 are switched to the standing / retreating posture S1. In such a state, the two moving members 4 and 5
Is moved backward to the original retreat position P1 by the retreat driving means 6, the load W to be unloaded on the load supporting portion 2 is located behind the load W and is in a pair of left and right loading retraction push-outs. It is pushed back by the arms 7a and 8a (or 7b and 8b), and is pulled from the load support portion 2 to the center position on the load support 3 (conveyor 10) at the same level.

When the load W is drawn onto the load support 3 (conveyor 10), the transport train 52 can be run to transfer the load W on the load support 3 to a target unloading location. When unloading the load W on the load support 3 at the target unloading location, or loading the load W loaded on the load support 3 as described above at the loading location, the load supporting portion 2 of the shelves 50, 51.
In the case of unloading, the transport train 52 is stopped at the unloading position, and then the loading and pushing arms 7a, 8a (or 7b, 8b) on the unloading direction side are raised and retracted S1.
And the loading and pushing arms 7b and 8b on the opposite side.
(Or 7a, 8a) is in the falling action posture S2, and the retreating members 4, 5 are advanced in the unloading direction.

As a result, the load W on the load supporting table 3 is pushed by the pair of left and right load pulling-in / out arms 7b, 8b (or 7a, 8a) in the lying-down posture S2 located behind the load W, and the load at the same level. It is extruded onto the support 2. When the reciprocating members 4 and 5 reach the advanced position P2 and the load W is pushed out to a predetermined position on the load supporting portion 2, the reciprocating members 4 and 5 are returned to their original positions. Entry position P
It only has to be moved backward to 1.

FIG. 11 shows a state in which the retractable moving member 5 located on one side of the load support table 3 is mounted on a movable base 54 movable in the direction of the distance with respect to the other retractable moving member 4, so that the both retractable movements are possible. The example which comprised so that the space | interval between members 4 and 5 can be changed is shown. In this case, as a matter of course, the fixed rail-shaped member 16 that supports the moving member 5 via the intermediate moving member 12 is installed on the movable table 54, and the moving member 5 moves sideways together with the movable table 54. Even if it is, for example, the retracting drive means is provided so that the retracting drive of the retractable moving member 5 and the swinging drive of the loading and pushing arms 8a, 8b attached to the retractable moving member 5 can be performed without any trouble. 6, the transmission shaft 22 of the first drive unit 13 may be a telescopic transmission shaft using a double shaft, or the transmission shaft 22 may be spline-fitted to the bevel gear unit 21b on the movable table 54 side so that the transmission shaft 22 can only slide in the axial direction. The transmission shaft 39 in the arm driving means 9 may be a transmission shaft using a telescopic double shaft, or the transmission shaft 3 may be connected to the pinion gear 38 on the movable table 54 side.
It is necessary to take measures such as fitting splines 9 so that they can slide only in the axial direction. 55a and 55b are movable tables 54
Is laid on a fixed base 56 that supports the other moving member 4.

The movable table 54 may be manually traversed according to the width of the load W to be handled, and may be fixed after its position has been adjusted. Alternatively, the movable table 54 may be fixed by a method such as using a motor driven rotary screw shaft. It is desirable to make it move laterally by power. Of course, the other moving member 4 may be configured to be able to move laterally, or both moving members 4 and 5 may be moved toward and away from each other to change the center position of the load transfer path between them. Instead, it is also possible to configure such that only the width of the load transfer route is changed.

The arm driving means 9 of the above embodiment comprises a pair of front and rear load pulling-out arms 7a, 7b and 8a, 8
b are driven in opposite directions so as to switch them to the opposite positions. However, as shown in FIG. 12, a pair of front and rear loading / unloading arms 7a, 7b and 8a, 8b
May be driven in the same direction to switch to the same posture. Specifically, for example, one bevel gear 36b and the rotating shaft 35b in the transmission mechanism 31 shown in FIG. 8 are omitted, the rotating shaft 35a is extended, and the loading and pushing arms 7a, 7b or 8a, 8
b may be attached.

As described above, when the pair of front and rear loading / unloading arms 7a, 7b and 8a, 8b are driven in conjunction in the same direction so as to switch to the same posture, the number of components of the transmission mechanism 31 is reduced. In addition to simplifying the structure, both sides of the load W pulled into the load support 3 in the load transfer direction can be sandwiched between the load pulling-out push arms 7a to 8b in the falling action posture S2. As shown in FIG. 10, the transfer device 1
When the transport train 52 transports the load W on the load supporting table 3 when the transport train 52 is used, the load pulling-in / out arms 7a to 8b prevent the load W from floating in the load transfer direction. Can be done. Even when the moving members 4 and 5 are moved at a high speed, the arms 7a to 8a are positioned on both front and rear sides in the load transfer direction of the load W.
Since the transfer is carried out while being sandwiched by b, there is no danger that the load W will overrun due to inertia.

[0030]

As described above, according to the transfer apparatus of the present invention, when the load is pulled in from the load support portion side to the load support table and transferred, the loads provided at the front and rear ends of the moving member are provided. The retractable moving member is moved to the advanced position in a state where the arm on the load supporting portion side of the retracting push-out arm is in the standing and retracting position, and the retractable moving member is loaded in a state in which the arm is switched to the falling action position. By retreating to the retreat position on the support base side, the load can be pushed back and pulled into the load support base by the arm in the falling action posture located behind the load on the load support portion.

When the load on the load support is pushed out onto the load support and transferred, the load pull-out arm on the side farther from the load support is switched to the falling action posture and positioned behind the load. In this state, by moving the moving member to the advanced position, the load on the load support table can be pushed from behind by the arm in the falling action posture and pushed out onto the load support section.

According to the transfer apparatus of the present invention which can pull in, load, or push out and transfer a load as described above, even when loads are placed side by side on a load support portion such as a shelf, the load between the loads can be reduced. In this case, it is only necessary to secure a narrow gap enough for the loading / extruding arm in the erecting / retracting posture and the retracting / moving member supporting the arm to move in and out, so that the storage efficiency on the shelf side can be improved. In addition, since the load is pushed back and moved by the load pull-in / out arm positioned behind the load in the falling action position, the load can be moved in the load transfer direction even if there is some variation in the load width. It can be mounted, and its structure is simpler than that of the sandwiching conveyor type, and can be implemented relatively inexpensively. Of course,
It does not require a special engaged part on the load side, and any load can be handled as a transfer target without any problem as long as it can be pushed back by the load pulling-in push-out arm in the lying action posture. I can do it.

[Brief description of the drawings]

FIG. 1A is a schematic side view of a state in which a retractable moving member is moved to an advanced position, and FIG. 1B is a plan view of the same.

FIG. 2 is a partially cutaway rear view showing the loading and pushing arm switched to a lying action posture.

FIG. 3 is a side view for explaining a retractable driving unit.

FIG. 4 is a side view illustrating the arm driving means when the moving member is at a retreat position.

FIG. 5 is a side view illustrating the arm driving means when the retractable member is at a position in the middle of the advance movement.

FIG. 6 is a side view illustrating the arm driving means when the retractable moving member is at the advanced position.

FIG. 7 is a longitudinal sectional rear view showing a main part of the retractable driving means and a main part of the arm driving means.

FIG. 8 is a partially cutaway side view illustrating an arm driving means in the moving member.

FIG. 9 is a vertical sectional front view for explaining a posture holding means of the loading and pushing arm.

FIG. 10 is a schematic plan view illustrating a state in which the transfer device of the present invention is mounted on a transport train.

FIG. 11 is a schematic plan view illustrating another embodiment.

FIG. 12 is a schematic plan view illustrating still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transfer device 2 Load support part 3 Load support stand 4 Retractable moving member 5 Retractable moving member 6 Retractive drive means 7a Load retrieving and pushing arm 7b Load retrieving and extruding arm 8a Load retrieving and extruding arm 8b Load retracting and extruding arm 9 Arm driving Means 10 Conveyor Constituting Load Support 11 Intermediate Moving Body 12 Intermediate Moving Body 13 First Driving Unit of Retracting Drive Means 14 Second Driving Unit of Retracting Drive Means 15 Fixed Rail Shaped Member 16 Fixed Rail Shaped Member 19 Rack Gear 20a Pinion gear 20b Pinion gear 21a Bevel gear unit 21b Bevel gear unit 22 Power transmission shaft 24 Motor with reduction gear 26a Chain 26b Chain 28 Driven member 30 Front and rear swing lever 31 Transmission mechanism 33 Chain and other transmission cables 34 Drive unit 35a Rotary shaft 35b Rotary shaft 36a 36b bevel gear 37 bevel gear 38 rack gear 39 transmission shaft 40 pinion gear 43 motor with reduction gear 44 arm posture holding means 50 shelf 51 shelf 52 transport train 54 movable base 56 fixed base

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-212670 (JP, A) JP-A-2-48314 (JP, A) JP-A-63-277107 (JP, A) 166619 (JP, U) Japanese Utility Model Application Hei 2-26008 (JP, U) US Patent 4,116,324 (US, A) West German Patent Application Publication 3411195 (DE, A1) West German Patent Application Publication 3917485 (DE, A1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 1/00-1/20

Claims (6)

(57) [Claims] A load support (3) on which a load (W) is horizontally transferred between the load support (2) and a load support (3) and the load support (2). Moving member (4) located on the side of the cargo transfer path
A pair of front and rear loading and unloading arms (7a, 7a,
7b) and an arm driving means (9), wherein the retracting drive means (6) supports the whole of the retractable moving member (4).
Retreat position (P1) located on the side of the platform (3) and move in and out
The reciprocating member (4) is reciprocated in the load transfer direction between the member (4) and the advancing position (P2) in which the entire member (4) is located laterally above the load supporting portion (2). The arm driving means (9) moves the pair of front and rear load pulling-in / out arms (7a, 7b) into a standing and retracting posture (S1) and a lying action posture (S2) which falls down substantially horizontally into the load transfer path. ), And when the moving member (4) is at the advanced position (P2), a pair of front and rear members is provided.
The loading and pushing arms (7a, 7b) of the
It is located outside the front and rear end faces in the load transfer direction of the upper load.
Transfer device configured as follows . 2. A loading and pushing arm (7a)
8b) are disposed on the left and right sides of the load transfer path, and the retraction drive means (6) is a pair of left and right retraction members (4, 5). ) In the same direction to drive the arm back and forth.The arm drive means (9) oscillates by linking the loading and pushing arms (7a, 8a) (7b, 8b) on the same front and rear sides to the same posture. The transfer device according to claim 1, wherein 3. The transfer device according to claim 2, wherein the pair of left and right moving members (4, 5) is provided so as to be able to change the interval between them. 4. A loading / unloading drive means (6) is supported on the side of the load support table (3) so as to be movable in the loading direction, and supports the loading / unloading member (4) so as to be movable in the loading direction. A moving body (11), a first drive unit (13) for driving the intermediate moving body (11) to move in and out, and an output to the intermediate moving body (11) in conjunction with the movement of the intermediate moving body (11); Second drive unit (14) for moving the retreat member (4) in the same direction
The arm driving means (9) comprises a driven member (28) supported on the load support table (3) side so as to be movable in the load transfer direction, and an outgoing and moving member (4).
A forward / backward swinging lever (30) pivotally supported by a pair of forward / backward loading / unloading arms (7a, 7
b) a transmission mechanism (31) that converts the oscillation into an oscillation, and an intermediate moving body (11)
Between the front and rear ends of the driven member (28) and the lever (30)
The transfer device according to any one of claims 1 to 3, comprising a transmission cable (33) connected to the driving member and a driving unit (34) for moving the driven member (28) forward and backward. 5. The arm driving means (9) for interlockingly driving the pair of front and rear loading / unloading arms (7a, 7b) in opposite directions so as to switch between the opposite postures. The transfer device according to any one of the above. 6. The arm driving means (9) for interlockingly driving a pair of front and rear loading / unloading arms (7a, 7b) in the same direction so as to switch them to the same posture. The transfer device according to any one of the above.