Object transport system

Abstract

To provide an object transport system that allows the cart section to enter the rails steadily and reduces the shock when entering the rails.SOLUTION: The object transport system includes: an object transport device; and a mounting table. The object transport device includes: a traveling section; a cart section; and a transfer mechanism section. A rail extending laterally is arranged between the object transport device and the mounting table. The lateral movement mechanism of the cart section moves back and forth along the rail. The rail includes an inclined section and a horizontal section, with the inclined section sloping away from the object transport device in the lateral direction and upward in the vertical direction. When the lateral movement mechanism moves away from the object transport device in the lateral direction, the first roller and the second roller in the lateral movement mechanism move along the rail. When the lateral movement mechanism moves to the mounting table, the boundary between the inclined section and the horizontal section is positioned between the first roller and the second roller when viewed from the traveling direction.SELECTED DRAWING: Figure 1A

Description

[Technical Field]

[0001] The present invention relates to an object transport system, and more particularly to an object transport system that improves the problem of tilting of a lateral movement mechanism during movement. [Background technology]

[0002] In conventional object transport systems, an object transport device moves between different stops to transport objects. When the object transport device stops at a stop, it picks up and releases objects by moving the carriage of the object transport device to a platform located laterally. However, when the carriage approaches the platform, the rollers of the lateral movement mechanism on the carriage (the rollers closest to the platform in the horizontal direction) generate impact and vibration as they enter along the rail joint. In order to suppress the vibration, the rail is lowered to a position lower than its original position, and the carriage becomes tilted after it has completely entered the platform. Summary of the Invention [Problem to be solved by the invention]

[0003] The present invention provides an object transport system that can correct the angle of inclination of the carriage and reduce the impact when entering a rail. [Means for solving the problem]

[0004] The object transfer system of the present invention includes an object transfer device and a mounting table disposed adjacent to the object transfer device. The object transfer device includes a traveling unit, a carriage unit, and a transfer unit. The traveling unit is disposed on a traveling rail and moves along the traveling direction. The carriage unit is installed below the traveling unit and includes a lateral movement mechanism that moves along the lateral direction and a lifting mechanism that moves along the vertical direction. The transfer unit is installed below the lifting mechanism. A rail extending along the lateral direction is disposed between the object transfer device and the mounting table. The lateral movement mechanism reciprocates laterally between the object transfer device and the mounting table along the rail, and a first roller is installed on one side in the lateral direction and a second roller is installed on the other side of the lateral movement mechanism. The rail includes an inclined portion and a horizontal portion, and the inclined portion extends inclined in a direction away from the object transfer device in the lateral direction and upward in the vertical direction. When the lateral movement mechanism moves in a direction away from the object transfer device in the lateral direction, the first roller and the second roller move along the rail, and when the lateral movement mechanism moves to the mounting table, in a viewing angle seen in the traveling direction, the boundary between the inclined portion and the horizontal portion is located between the first roller and the second roller.

[0005] In one embodiment of the present invention, the dimensions of the first roller are the same as those of the second roller, and the first roller and the second roller are installed offset with respect to the traveling direction. The rail includes a first rail and a second rail installed adjacent to each other in the traveling direction. When the lateral movement mechanism moves in a direction away from the object transfer device in the lateral direction, the first roller is farther from the object transfer device than the second roller, and the first roller moves along the first rail, and the second roller moves along the second rail.

[0006] In one embodiment of the present invention, the inclined portion is disposed on the first rail, the horizontal portion is farther from the object transfer device than the inclined portion, and the inclined portion extends inclined toward the horizontal portion.

[0007] In one embodiment of the present invention, the size of the first roller is smaller than the size of the second roller. The horizontal part includes a first horizontal part and a second horizontal part closer to the object conveyor than the first horizontal part. The horizontal height of the first horizontal part in the vertical direction is higher than the horizontal height of the second horizontal part in the vertical direction, and the inclined part is installed between the first horizontal part and the second horizontal part to connect the two. When the lateral movement mechanism moves in a direction away from the object conveyor in the lateral direction, the first roller is farther from the object conveyor than the second roller, and when the lateral movement mechanism moves to the mounting table, the first roller is located on the first horizontal part and the second roller is located on the second horizontal part.

[0008] In one embodiment of the present invention, the mounting table includes a first mounting table installed on one side of the object conveyor and a second mounting table installed on the other side. The rail includes a first rail disposed between the object conveyor and the first mounting table and a second rail disposed between the object conveyor and the second mounting table, and in a viewing angle when viewed laterally, the first rail and the second rail are installed adjacent to each other in the traveling direction. The third roller is disposed adjacent to the first roller in the traveling direction, and the fourth roller is disposed adjacent to the second roller in the traveling direction. When the lateral movement mechanism moves to one side where the first mounting table is located in the lateral direction, the first roller and the second roller move along the first rail. When the lateral movement mechanism moves to the other side where the second mounting table is located in the lateral direction, the third roller and the fourth roller move along the second rail.

[0009] In one embodiment of the present invention, the size of the third roller is the same as the size of the second roller, and the size of the fourth roller is the same as the size of the first roller.

Advantages of the Invention

[0010] Based on the above, in the object transfer device of the object transfer system of the present invention, the lateral movement mechanism of the carriage unit moves along a rail having an inclined portion and a horizontal portion, and the inclined portion extends obliquely in a direction away from the object transfer device and upward in the vertical direction. In the process of the first roller and the second roller in the lateral movement mechanism moving along the rail, at least one of the first roller and the second roller corrects the inclination of the carriage unit via the inclined portion on the rail. Further, after the lateral movement mechanism moves to the mounting table, the boundary between the inclined portion and the horizontal portion is located between the first roller and the second roller, that is, at least one of the first roller and the second roller is located on the horizontal portion. Thereby, the object transfer system of the present invention can correct the inclination angle of the carriage unit and reduce the impact when entering the rail.

Brief Description of the Drawings

[0011] [Figure 1A] It is an explanatory diagram of different operating states of the object transfer system of the present invention. [Figure 1B] It is an explanatory diagram of different operating states of the object transfer system of the present invention. [Figure 2] It is a top view of the lateral movement mechanism of the object transfer device in an embodiment of the present invention before entering the rail. [Figure 3] It is a perspective explanatory diagram after the lateral movement mechanism in FIG. 2 operates and enters the rail. [Figure 4] It is a plan view of the lateral movement mechanism of the object transfer device in another embodiment of the present invention before entering the rail. [Figure 5] It is a perspective explanatory diagram after the lateral movement mechanism in FIG. 4 operates and enters the rail.

Embodiments for Carrying out the Invention

[0012] 1A and 1B are explanatory diagrams of the object transport system of the present invention in different operating states. FIG. 2 is a top view of a lateral movement mechanism of an object transport apparatus according to one embodiment of the present invention before it enters a rail. FIG. 3 is a perspective explanatory diagram of the lateral movement mechanism of FIG. 2 after it has been activated and entered a rail. In this embodiment, the object transport system 10 transports an object O (e.g., a wafer) to each stop point within a semiconductor factory, for example, to improve overall production efficiency. However, in other embodiments not shown, the object transport system 10 can be applied to other work areas suitable for transporting objects, and the present invention is not limited to the above situation. The object transport system 10 includes an object transport apparatus 100 and a mounting table 200 arranged adjacent to the object transport apparatus 100. More specifically, the object transport device 100 moves, for example, on a traveling rail TR connecting each stop point along a traveling direction TD (a direction perpendicular to the drawings in FIGS. 1A and 1B ), and stops between two mounting tables 200 in a horizontal direction HD (the left-right direction in the drawings in FIGS. 1A and 1B ). Therefore, when the object transport device 100 is stopped at the stop point, the mounting table 200 is disposed adjacent to the object transport device 100. That is, in the object transport system 10, the object transport device 100 is movably mounted, and the mounting table 200 is stationary. However, in other embodiments not shown, only one mounting table 200 may be provided depending on actual needs, and the present invention is not limited thereto. The structure and operation method of the object transport system 10 are further described below.

[0013] 1A and 1B, in this embodiment, object transport apparatus 100 includes a traveling unit 110, a carriage unit 120, and a transfer machine unit 130. Traveling rails TR are disposed above object transport apparatus 100 in the up-down direction UD (e.g., the up-down direction in the drawings of FIGS. 1A and 1B). Traveling unit 110 is disposed on traveling rails TR and moves along traveling direction TD. Movement on traveling rails TR is achieved, for example, by a drive unit (not shown). Carriage unit 120 is disposed below traveling unit 110 in the up-down direction UD and includes a lateral movement mechanism 122 that moves along the lateral direction HD and an elevator mechanism 124 that moves along the up-down direction UD. Transfer machine unit 130 is disposed below elevator mechanism 124 and moves downward along elevator mechanism 124 to load or place object O. Therefore, when object transport device 100 stops at the side of mounting table 200 due to the movement of traveling unit 110, cart unit 120 moves transfer machine unit 130 closer to mounting table 200 by movement of lateral movement mechanism 122 along the lateral direction HD and movement of lifting mechanism 124 along the up-down direction UD. Also, as shown in Figures 1A and 1B, cart unit 120 is covered with a shell, and lateral movement mechanism 122, lifting mechanism 124, transfer machine unit 130, and object O all enter and exit from the inside of the shell, but the present invention is not limited to this.

[0014] Furthermore, in this embodiment, a rail R extending along the lateral direction HD is disposed between the object transport apparatus 100 and the mounting table 200. As shown in the state change between FIGS. 1A and 1B, the lateral movement mechanism 122 of the cart unit 120 moves back and forth along the rail R in the lateral direction HD between the object transport apparatus 100 and the mounting table 200 on one side in the lateral direction HD (i.e., the side of the first mounting table 202, the left side in FIGS. 1A and 1B). In other embodiments not shown, the lateral movement mechanism 122 of the cart unit 120 may move back and forth along the rail R in the lateral direction HD between the object transport apparatus 100 and the mounting table 200 on the other side in the lateral direction HD (i.e., the side of the second mounting table 204, the right side in FIGS. 1A and 1B), and the present invention is not limited to the content shown in FIGS. 1A and 1B. That is, in the explanation of the relative position and operation between the subsequent object transport device 100 and the mounting table 200, the mounting table 200 on one side in the horizontal direction HD (the side of the first mounting table 202) is used as an example, but it can also be applied to the mounting table 200 on the other side in the horizontal direction HD (if present), and its movement direction, etc. can be adjusted as necessary (as described below).

[0015] 1A to 3, in this embodiment, the lateral movement mechanism 122 has a first roller W1 installed on one side in the lateral direction HD (the side closer to the first mounting table 202) and a second roller W2 installed on the other side (the side closer to the second mounting table 204). The reason for installing the second roller W2 is that when the lateral movement mechanism 122 is supported only by the first roller W1 or the object transport device 100, the second roller W2 needs to provide additional support to prevent the central portion of the lateral movement mechanism 122 from bending due to its weight. As shown in FIGS. 2 and 3, the rail R includes an inclined portion RT and a horizontal portion RH. The inclined portion RT extends in a direction away from the object transport device 100 in the lateral direction HD and upward in the up-down direction UD. That is, the inclination direction of the inclined portion RT becomes increasingly upward in the up-down direction UD as it moves away from the object transport device 100.

[0016] Also, as shown in FIGS. 1B and 3, when the lateral movement mechanism 122 moves in a direction away from the object transfer device 100 in the lateral direction HD, the first roller W1 and the second roller W2 move along the rail R. Here, the first roller W1 moves along the inclined portion RT on the rail R, gradually rises upward in the vertical direction UD, and then the inclination of the carriage portion 120 begins to be corrected. At this time, the first roller W1 is farther from the object transfer device 100 than the second roller W2. However, in other embodiments not shown, conversely, for example, the second roller W2 is farther from the object transfer device 100 than the first roller W1, and the second roller W2 may move along the inclined portion RT of the rail R. Also, when the lateral movement mechanism 122 moves to the mounting table 200, in the viewing angle seen in the traveling direction TD, the boundary B between the inclined portion RT and the horizontal portion RH is located between the first roller W1 and the second roller W2 (FIG. 3). Therefore, after the first roller W1 at this time is guided by the inclined portion RT, the carriage portion 120 becomes horizontal.

[0017] As can be understood from this, in the object transfer device 100 of the object transfer system 10 in the present embodiment, the lateral movement mechanism 122 of the carriage portion 120 moves along the rail R having the inclined portion RT and the horizontal portion RH, and the inclined portion RT extends obliquely in a direction away from the object transfer device 100 and upward in the vertical direction UD. In the process of the first roller W1 and the second roller W2 of the lateral movement mechanism 122 moving along the rail R, at least one of the first roller W1 and the second roller W2 corrects the inclination of the carriage portion 120 via the inclined portion RT of the rail R. Also, after the lateral movement mechanism 122 moves to the mounting table 200, the boundary B between the inclined portion RT and the horizontal portion RH is located between the first roller W1 and the second roller W2, that is, at least one of the first roller W1 and the second roller W2 is located on the horizontal portion RH. Therefore, the object transfer system 10 of the present embodiment can correct the inclination angle of the carriage portion 120 and reduce the impact when entering the rail R.

[0018] Referring to FIG. 2 and further elaborating, in the present embodiment, the dimension D1 of the first roller W1 is the same as the dimension D2 of the second roller W2, and the first roller W1 and the second roller W2 are arranged alternately in the traveling direction TD. Taking FIG. 2 as an example, the first roller W1 is arranged more inward (i.e., from the center of the lateral movement mechanism 122) in the traveling direction TD than the second roller W2, but the present invention is not limited thereto, and the second roller W2 may be arranged more inward (i.e., from the center of the lateral movement mechanism 122) in the traveling direction TD. The rail R includes a first rail R1 and a second rail R2 arranged adjacent to each other on the traveling direction TD, corresponding to the first roller W1 and the second roller W2 respectively. That is, the first roller W1 and the second roller W2 are arranged alternately on the traveling direction TD with respect to the first rail R1 and the second rail R2 arranged adjacent to each other in the traveling direction TD. Therefore, when the lateral movement mechanism 122 moves in the direction away from the object transfer device 100 in the lateral direction HD (the left side in FIG. 2), the first roller W1 is farther from the object transfer device 100 than the second roller W2, and the first roller W1 moves along the first rail R1, and the second roller W2 moves along the second rail R2.

[0019] Furthermore, in the present embodiment, as shown in FIGS. 2 and 3, an inclined portion RT is provided on the first rail R1. The horizontal portion RH is installed on the first rail R1 and the second rail R2, and the horizontal portion RH is installed at a position farther from the object transfer device 100 than the inclined portion RT, that is, at the end of the rail R in FIG. 2 away from the lateral movement mechanism 122. The inclined portion RT extends obliquely toward the horizontal portion RH. Here, the second rail R2 may be provided as a horizontal rail having the same height as the horizontal portion RH in the vertical direction UD (see FIG. 3), but the present invention is not limited thereto. Also, a connection portion RR is provided on the second rail R2 to alleviate the height difference when the second roller W2 enters the rail R and reduce the impact, but the present invention does not limit the presence or absence of the installation of the connection portion RR and can be adjusted as needed.

[0020] Therefore, when the lateral movement mechanism 122 moves away from the object transfer device 100 in the lateral direction HD, the first roller W1 enters the rail R earlier than the second roller W2, and rises upward along the inclination direction of the inclined portion RT through the inclined portion RT in the process of moving along the first rail R1. In this way, in the process of moving the lateral movement mechanism 122, even if the first roller W1 before entering the rail R is located at a lower position than the second roller W2 under the influence of gravity, the first roller W1 can also rise upward with the assistance of the inclined portion RT of the first rail R1 after entering the rail R, whereby the overall height of the first roller W1 side of the lateral movement mechanism 122 (that is, the frame to which the first roller W1 and the second roller W2 are attached, etc.) also rises with respect to the second roller W2, and inclination correction is performed. When the lateral movement mechanism 122 completely stops on the mounting table 200 side, the first roller W1 is located on the horizontal portion RH on the side away from the object transfer device 100, and the second roller W2 is located on the horizontal portion RH on the side approaching the connection portion RR, making the entire carriage portion 120 horizontal. Therefore, the object transfer system 10 of the present embodiment can correct the inclination angle of the carriage portion 120 and reduce the impact when entering the rail R.

[0021] Hereinafter, another embodiment of inclination correction will be described.

[0022] FIG. 4 is a plan view of the lateral movement mechanism of the object transfer device in another embodiment of the present invention before entering the rail. FIG. 5 is a perspective explanatory view after the lateral movement mechanism of FIG. 4 operates and enters the rail. In the present embodiment, the carriage portion 120' is applied to the object transfer system 10, the object transfer device 100, and the mounting table 200 shown in FIGS. 1A and 1B. Here, compared with the previous embodiment shown in FIGS. 2 and 3, the lateral movement mechanism 122' of the carriage portion 120' of the present embodiment is configured to have more rollers, and the rail R' also has a corresponding different arrangement method. For other structures not described, refer to the description of the previous embodiment, and it will not be repeatedly described here.

[0023] 4 and 5, in this embodiment, the lateral movement mechanism 122' of the carriage unit 120' has a first roller W1' installed on one side (the side closer to the first mounting table 202) in the lateral direction HD, and a second roller W2' installed on the other side (the side closer to the second mounting table 204). Furthermore, the rail R' includes an inclined portion RT' and a horizontal portion RH' (the subsequent first horizontal portion RH1 and second horizontal portion RH2). The inclined portion RT' extends in a direction away from the object transport device 100 in the lateral direction HD and upward in the up-down direction UD. In this way, when the lateral movement mechanism 122' moves in the lateral direction HD away from the object transport device 100, the first roller W1' and the second roller W2' move along the rail R', and when the lateral movement mechanism 122' moves to the mounting table 200, the boundary between the inclined portion RT' and the horizontal portion RH' (the subsequent first horizontal portion RH1 and second horizontal portion RH2) is located between the first roller W1' and the second roller W2' as viewed in the traveling direction TD (FIG. 5). Therefore, after the first roller W1' is guided to the inclined portion RT', the carriage unit 120' becomes horizontal. This allows the object transport system 10 of this embodiment to correct the angle of inclination of the carriage unit 120' and reduce the impact when entering the rail R'.

[0024] Referring further to FIG. 4, in this embodiment, the dimension D1' of the first roller W1' is smaller than the dimension D2' of the second roller W2'. The horizontal portion RH' includes a first horizontal portion RH1 and a second horizontal portion RH2 that is closer to the object transport apparatus 100 than the first horizontal portion RH1. As shown in FIG. 5, the horizontal height of the first horizontal portion RH1 in the up-down direction UD is greater than the horizontal height of the second horizontal portion RH2 in the up-down direction UD, and the inclined portion RT' is installed between the first horizontal portion RH1 and the second horizontal portion RH2 to connect them. That is, on the rail R, the horizontal heights in the up-down direction UD are the first horizontal portion RH1, the inclined portion RT', and the second horizontal portion RH2 in descending order. The order of the portions farther from the object transport apparatus 100 in the lateral direction HD and closer to the object transport apparatus 100 is the first horizontal portion RH1, the inclined portion RT', and the second horizontal portion RH2. Therefore, when the lateral movement mechanism 122' moves in the lateral direction HD in a direction away from the object transport device 100 (to the left in FIG. 5), the first roller W1' is farther away from the object transport device 100 than the second roller W2', and when the lateral movement mechanism 122' moves toward the mounting table 200, the first roller W1' is located at the first horizontal section RH1 and the second roller W2' is located at the second horizontal section RH2. At this time, because the dimension D1' of the first roller W1' is small, the first horizontal section RH1, which is higher in the up-down direction UD, may maintain the horizontal direction together with the second roller W2', i.e., the cart unit 120' may be placed in a horizontal state.

[0025] More specifically, as shown in FIGS. 1A and 1B, in this embodiment, the mounting table 200 includes a first mounting table 202 and a second mounting table 204. The first mounting table 202 is installed on one side of the object transfer device 100 (for example, the left side of the drawing in FIGS. 1A and 1B), and the second mounting table 204 is installed on the other side of the object transfer device 100 (for example, the right side of the drawing in FIGS. 1A and 1B). As shown in FIG. 4, the rail R' includes a first rail R1' and a second rail R2'. The first rail R1' is disposed between the object transfer device 100' and the first mounting table 202, and the second rail R2' is disposed between the object transfer device 100' and the second mounting table 204. In the viewing angle in the lateral direction HD, the first rail R1' and the second rail R2' are arranged adjacent to each other (not directly adjacent). That is, the first rail R1' and the second rail R2' are arranged alternately in the lateral direction HD. Taking FIG. 4 as an example, the second rail R2' is disposed outside the first rail R1' in the traveling direction TD, but the present invention is not limited thereto, and the first rail R1' may be disposed outside.

[0026] Referring to FIGS. 4 and 5, further, in this embodiment, the first roller W1' is disposed adjacent to the third roller W3 in the traveling direction TD, and the second roller W2' is disposed adjacent to the fourth roller W4 in the traveling direction TD. Also, both the third roller W3 and the fourth roller W4 are disposed outside the first roller W1' and the second roller W2' in the traveling direction TD. When the lateral movement mechanism 122' moves to the side where the first mounting table 202 is located in the lateral direction HD, the first roller W1' and the second roller W2' move along the first rail R1', and the third roller W3 and the fourth roller W4 do not contact the rail R'. When the lateral movement mechanism 122' moves to the other side where the second mounting table 204 is located in the lateral direction HD, the third roller W3 and the fourth roller W4 move along the second rail R2', and the first roller W1' and the second roller W2' do not contact the rail R'. In other embodiments not shown, when the first roller W1' and the second roller W2' move along the first rail R1', the third roller W3 and the fourth roller W4 may be brought into contact with the rail R' according to actual needs, and vice versa, and the present invention does not limit this.

[0027] Also, in the present embodiment, the dimension D3 of the third roller W3 is the same as the dimension D2' of the second roller W2', and the dimension D4 of the fourth roller W4 is the same as the dimension D1' of the first roller W1'. Therefore, the first roller W1' is functionally equivalent to the fourth roller W4, and the second roller W2' is functionally equivalent to the third roller W3. In other words, the first roller W1' and the second roller W2' function when moving toward the first mounting table 202 side, and the third roller W3 and the fourth roller W4 function when moving toward the second mounting table 204 side.

[0028] That is, when the lateral movement mechanism 122' moves along the lateral direction HD toward the first mounting table 202, the first roller W1' enters the first rail R1' earlier than the second roller W2', so the inclination is corrected from the first mounting table 202 side of the lateral movement mechanism 122', and the first roller W1' is lifted upward through the inclined portion RT' of the first rail R1'. Thereby, the object conveyance system 10 of the present embodiment can correct the inclination angle of the carriage portion 120 and reduce the impact when entering the rail R'. Correspondingly, when the lateral movement mechanism 122' moves along the lateral direction HD toward the second mounting table 204, the third roller W3 enters the second rail R2' earlier than the fourth roller W4, so the inclination is corrected from the second mounting table 204 side of the lateral movement mechanism 122', and the third roller W3 is lifted upward through the inclined portion RT' of the second rail R2'.

[0029] In this embodiment in which two mounting tables 200 are provided, the rails R' on both the left and right sides are set (the first rail R1' and the second rail R2' are positioned in the traveling direction TD, for example), and the same set of lateral movement mechanisms 122' can move back and forth in the lateral direction HD. This eliminates the need for complex control operations for the lateral movement mechanisms 122', allowing objects to be placed on the two mounting tables 200 on both the left and right sides. Additionally, a third roller W3 and a fourth roller W4 are added to the mounting table 200 on the opposite side as components having the same functions as the first roller W1' and the second roller W2'. However, in other embodiments not shown, only one mounting table 200 may be provided. In this case, the rail R' includes only the first rail R1', and the lateral movement mechanism 122' includes only the first roller W1' and the second roller W2', with the third roller W3 and the fourth roller W4 omitted.

[0030] In summary, in the object transport device of the object transport system of the present invention, the lateral movement mechanism of the cart moves along a rail having an inclined portion and a horizontal portion, and the inclined portion extends at an angle away from the object transport device and upward in the vertical direction. The inclination of the cart is corrected as at least one of the first and second rollers of the lateral movement mechanism moves along the inclined portion of the rail. After the lateral movement mechanism moves to the mounting table, the boundary between the inclined portion and the horizontal portion is located between the first and second rollers, i.e., at least one of the first and second rollers is located on the horizontal portion. This allows the object transport system of the present invention to correct the angle of inclination of the cart and reduce the impact when entering the rail. [Explanation of symbols]

[0031] 10: Object transport system 100, 100': object transport device 110: Running part 120, 120': bogie section 122, 122': Lateral movement mechanism 124: Lifting mechanism 130: Transfer machine section 200:Placement table 202: First stage 204: Second stage B: Boundary D1, D1', D2, D2', D3, D4: Dimensions HD:Horizontal O: Object R, R': Rail R1, R1': First rail R2, R2': Second rail RH, RH': Horizontal part RH1: 1st horizontal section RH2: 2nd horizontal part RR: Connection RT, RT': Inclined section TD: Travel direction TR: Running rail UD: Vertical direction W1, W1': First roller W2, W2': Second roller W3: Third roller W4: 4th roller

Claims

1. An object transfer system including an object transfer device and a mounting table disposed adjacent to the object transfer device, wherein the object transfer device is disposed on a traveling rail and includes a traveling part that moves along the traveling direction, a carriage part installed below the traveling part and including a lateral movement mechanism that moves along the lateral direction and a lifting mechanism that moves along the vertical direction, a transfer machine part installed below the lifting mechanism, and is provided with, a rail extending along the lateral direction is disposed between the object transfer device and the mounting table, the lateral movement mechanism reciprocates in the lateral direction between the object transfer device and the mounting table along the rail, and the lateral movement mechanism has a first roller installed on one side in the lateral direction and a second roller installed on the other side, the rail includes an inclined part and a horizontal part, and the inclined part extends inclinedly in a direction away from the object transfer device in the lateral direction and upward in the vertical direction, when the lateral movement mechanism moves in a direction away from the object transfer device in the lateral direction, the first roller and the second roller move along the rail, and when the lateral movement mechanism moves to the mounting table, in a viewing angle seen in the traveling direction, a boundary between the inclined part and the horizontal part is located between the first roller and the second roller. An object transfer system.

2. The size of the first roller is the same as the size of the second roller, and the first roller and the second roller are installed offset with respect to the traveling direction, the rail includes a first rail and a second rail installed adjacent to each other in the traveling direction, when the lateral movement mechanism moves in a direction away from the object transfer device in the lateral direction, the first roller is farther from the object transfer device than the second roller, and the first roller moves along the first rail, and the second roller moves along the second rail. The object transfer system according to claim 1.

3. The inclined part is disposed on the first rail, the horizontal part is farther from the object transfer device than the inclined part, and the inclined part extends inclinedly toward the horizontal part. The object transfer system according to claim 2.

4. The size of the first roller is smaller than the size of the second roller, the horizontal part includes a first horizontal part and a second horizontal part closer to the object transfer device than the first horizontal part. The vertical height of the first horizontal portion in the vertical direction is higher than the vertical height of the second horizontal portion, and the inclined portion is installed between the first horizontal portion and the second horizontal portion to connect the two, when the lateral movement mechanism moves in a direction away from the object conveying device in the lateral direction, the first roller is farther from the object conveying device than the second roller, and when the lateral movement mechanism moves to the mounting table, the first roller is located on the first horizontal portion, and the second roller is located on the second horizontal portion. The object conveying system according to claim 1.

5. The mounting table includes a first mounting table installed on one side of the object conveying device and a second mounting table installed on the other side of the object conveying device, the rail includes a first rail disposed between the object conveying device and the first mounting table and a second rail disposed between the object conveying device and the second mounting table, and in a viewing angle in the lateral direction, the first rail and the second rail are installed adjacent to each other, the third roller is disposed adjacent to the first roller in the traveling direction, and the fourth roller is disposed adjacent to the second roller in the traveling direction, when the lateral movement mechanism moves to one side where the first mounting table is located in the lateral direction, the first roller and the second roller move along the first rail, when the lateral movement mechanism moves to the other side where the second mounting table is located in the lateral direction, the third roller and the fourth roller move along the second rail. The object conveying system according to claim 4.

6. The size of the third roller is the same as the size of the second roller, and the size of the fourth roller is the same as the size of the first roller. The object conveying system according to claim 5.

Images