JP2021157364A - Mount table - Google Patents

Abstract

To provide a mount table that can improve safety by causing a contact sensor of an automatic guided vehicle to more reliably detect the presence of obstacles while suppressing obstacle false detection when being carried by the automatic guided vehicle.SOLUTION: A mount table 1 is for mounting articles and carried by an automatic guided vehicle 50 including a contact sensor 52, and includes: a table body 10 including a mounting surface on which the articles are placed and a plurality of leg parts 14 provided at intervals from each other; at least one contact bar 15 extending along a side surface of the table body and supported by the table body so as to be able to approach the side surface; and a pressing mechanism 20 for pressing a contact part 53 of the contact sensor of the automatic guided vehicle in conjunction with the approach of the contact bar to the side surface.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a mounting table on which articles are placed.

Conventionally, an unmanned transport device including a transport trolley and a transport self-propelled vehicle (unmanned transport vehicle) that is detachably connected to the transport trolley is known (see, for example, Patent Document 1). The automatic guided vehicle that constitutes this automatic guided vehicle has a detection unit that is a laser scanner, sonar, or camera that forms a detection area for detecting obstacles. Further, the transport trolley is connected to the transport self-propelled vehicle, and has the first and second legs that form a detection restriction region, which is an region where the detection of obstacles is restricted, in a part of the detection region. A movable part that changes its posture from a non-detection posture, which is a posture not detected by the detection unit, to a detection posture, which is a posture detected as an obstacle by the detection unit, by contacting an obstacle existing in the detection restriction area. Have. As a result, the presence of an obstacle in contact with the movable portion can be detected by detecting the movable portion by the detection unit of the self-propelled vehicle.

JP-A-2019-133404

However, in the above-mentioned conventional automatic guided vehicle, even if the movable part of the automatic guided vehicle comes into contact with an obstacle, the movable part does not move to the position detected by the detection part, and the existence of the obstacle cannot be detected. There is a risk. Therefore, the conventional automatic guided vehicle still has room for improvement in ensuring the safety of the automatic guided vehicle during transportation. In addition, depending on the road surface condition, vibration may be applied to the transport self-propelled vehicle and the transport carriage during the transportation of the article. Will be added. Then, when the vibration is transmitted to the transport carriage, the movable portion may enter the detection area due to the change in posture, and an obstacle may be erroneously detected.

Therefore, the present disclosure can improve safety by allowing an automatic guided vehicle to more reliably detect the presence of an obstacle while suppressing false detection of an obstacle when the vehicle is transported by an automatic guided vehicle. The main purpose is to provide a stand.

The mounting table of the present disclosure is a mounting table on which an article is placed and is transported by an automatic guided vehicle including a contact sensor, and is provided at a distance from a mounting surface on which the article is placed. A pedestal body including the plurality of legs, at least one contact bar extending along the side surface of the pedestal body and supported by the pedestal body so as to be accessible to the side surface, and the contact bar. It includes a pressing mechanism that presses the contact portion of the contact sensor of the automatic guided vehicle in conjunction with the approach to the side surface.

When the automatic guided vehicle of the present disclosure is transported by an automatic guided vehicle, the automatic guided vehicle is moved below the mounting surface of the automatic guided vehicle from between the legs, and the automatic guided vehicle supports the vehicle. Further, when an obstacle comes into contact with a contact bar extending along the side surface of the table body during transportation of the mounting table by an automatic guided vehicle, the contact bar is pushed by the obstacle and approaches the side surface of the table body. Then, the pressing mechanism presses the contact portion of the contact sensor of the automatic guided vehicle in conjunction with the approach to the side surface of the contact bar. As a result, when the mounting table of the present disclosure is transported by the automatic guided vehicle, the contact sensor of the automatic guided vehicle can more reliably detect the presence of the obstacle while suppressing erroneous detection of obstacles to improve safety. It can be further improved.

It is a plane which shows the mounting table of this disclosure. It is a partial cross-sectional view which shows the mounting table of this disclosure. It is a perspective view which shows the base body of the mounting base of FIG. It is an enlarged view which shows the main part of the mounting table of FIG. It is an enlarged view which shows the pressing mechanism of the mounting table of FIG. It is an enlarged view for demonstrating the operation of the pressing mechanism of the mounting table of FIG. It is an enlarged view for demonstrating the operation of the pressing mechanism of the mounting table of FIG. It is an enlarged view which shows the other pressing mechanism applicable to the mounting table of FIG. It is a top view which shows the pressing mechanism of the other mounting table of this disclosure. It is an enlarged view which shows the pressing mechanism of the mounting table of FIG. It is an enlarged view for demonstrating the operation of the pressing mechanism of the mounting table of FIG.

Next, a mode for carrying out the invention of the present disclosure will be described with reference to the drawings.

FIG. 1 is a plane showing the mounting table 1 of the present disclosure, and FIG. 2 is a partial cross-sectional view showing the mounting table 1. The mounting table 1 shown in these drawings is used, for example, in a factory, a warehouse, or the like to mount a plurality of parts, a case containing the parts, or an article such as a pallet on which the parts are mounted, and is used for unmanned transportation. It is lifted and transported by a vehicle (AGV) 50. As shown in FIGS. 1 and 2, the automatic guided vehicle 50 includes an elevating mechanism 51 for lifting (supporting) the mounting table 1 and a plurality of automatic guided vehicles 50 (two in the present embodiment) for detecting obstacles. Includes contact sensor 52. Each contact sensor 52 includes a contact portion 53 for contacting an obstacle and a detection unit 54 for detecting that the obstacle has come into contact with the contact portion 53. In the present embodiment, the contact portion 53 of each contact sensor 52 is an airbag filled with air inside. One contact portion 53 is provided on the automatic guided vehicle 50 so as to cover from the front end or the rear end of the automatic guided vehicle 50 to a part of the side surfaces on both sides. The detection unit 54 of each contact sensor detects, for example, deformation of the contact portion 53 due to contact with an obstacle due to a change in air pressure in the corresponding contact portion 53, and when the deformation of the contact portion 53 is detected, , A contact detection signal indicating that effect is transmitted to the control device of the automatic guided vehicle 50. When the control device receives a contact detection signal from any of the contact sensors 52 (detection unit 54) while the automatic guided vehicle 50 is traveling, the control device stops the automatic guided vehicle 50 from traveling.

As shown in the figure, the mounting table 1 includes a table body 10 on which articles are mounted. As shown in FIGS. 1 and 3, the base body 10 has a rectangular (square in this embodiment) outer frame 11, beams 12 and 13, and four extending from the four corners of the outer frame 11. Includes the legs 14 and. The upper surfaces of the outer frame 11, the beams 12 and 13 in the drawing are used as the mounting surface 10s on which the article is mounted. However, a plate (not shown) may be fixed to the upper surface of the outer frame 11, the beam 12 and 13 in the drawing, and the upper surface of the plate may be used as the mounting surface 10s. Further, the outer frame 11 has four side surfaces 11s, and in the present embodiment, the adjacent side surfaces 11s are orthogonal to each other. Further, the length of each side surface 11s of the outer frame 11 is set to be sufficiently longer than the larger of the overall length and width of the automatic guided vehicle 50 used together with the mounting table 1, and the distance between the adjacent legs 14 is also set. The total length and width of the automatic guided vehicle 50 are sufficiently longer than the larger one. As a result, the automatic guided vehicle 50 can be made to enter from between the adjacent legs 14 to the lower part near the central portion of the mounting surface 10s (base body 10).

Further, the mounting table 1 includes a plurality of (four in this embodiment) contact bars 15. Each contact bar 15 is made of metal, resin, or the like so as to have a substantially rectangular parallelepiped shape having substantially the same length as the corresponding side surface 11s of the outer frame 11 and having a height longer than the height of the outer frame 11 and the beams 12 and 13. It is formed. Each contact bar 15 is supported by the outer frame 11 so as to face the entire corresponding side surface 11s of the outer frame 11 and to be able to approach and separate from the side surface 11s. Further, a plurality of springs (elastic bodies) 16 having relatively low rigidity (two in the present embodiment) are arranged between each contact bar 15 and the corresponding side surface 11s, and each contact bar 15 is arranged. A plurality of springs 16 are urged so as to extend substantially parallel to the corresponding side surface 11s.

Further, the mounting table 1 includes four pressing mechanisms 20. As shown in FIGS. 4 and 5, each pressing mechanism 20 has a pressing member 21 capable of pressing the contact portion 53 of the contact sensor 52 of the automatic guided vehicle 50 and a gas as an urging member for urging the pressing member 21. It includes a spring 22, a stopper 23 that locks the pressing member 21 against the urging force of the gas spring 22, and two stopper releasing members 24 that are connected to the corresponding contact bars 15. As shown in FIGS. 1 and 4, the pressing mechanism 20 has two side surfaces 11s that intersect (orthogonally) each corner of the outer frame 11 so that the gas spring 22 extends along the diagonal line of the outer frame 11. It is placed one by one inside.

The pressing member 21 of each pressing mechanism 20 is a rod member shorter than the leg portion 14, and is fixed to the tip of the rod of the gas spring 22 so as to be substantially orthogonal to the gas spring 22. Further, the base end portion of the gas spring 22, that is, the end portion on the side opposite to the pressing member 21 side is rotatably supported by the support portion provided on the outer frame 11. The stopper 23 is fixed to the outer frame 11 below the gas spring 22 so as to extend along the gas spring 22 substantially parallel (substantially horizontal) to the mounting surface 10s. Further, at the tip of the stopper 23, a locking portion 23a that engages with the locked portion 21a formed on the pressing member 21 is formed. By engaging the locking portion 23a with the locked portion 21a of the pressing member 21, the gas spring 22 is held in a compressed state, whereby the urging of the pressing member 21 by the gas spring 22 is restricted. Hereinafter, the state in which the locking portion 23a of the stopper 23 and the locked portion 21a of the pressing member 21 are engaged with each other is referred to as the “operated state” of the pressing mechanism 20. In such an actuated state, as shown in FIG. 5, the gas spring 22 extends substantially parallel to the stopper 23, and the pressing member 21 extends substantially parallel to the leg portion 14, that is, substantially vertically. Further, in the actuated state, the distance between the pressing members 21 in the direction along each side surface 11s of the outer frame 11 is longer than that of the automatic guided vehicle 50 used together with the mounting table 1 having a larger total length and width.

One of the two stopper release members 24 of the pressing mechanism 20 is orthogonal to the one side surface 11s and the contact bar 15 with respect to the contact bar 15 along one of the two side surfaces 11s intersecting with each other of the outer frame 11. It is connected (fixed) like this. Further, the other of the two stopper release members 24 is connected (fixed) to the contact bar 15 along the other of the two side surfaces 11s so as to be orthogonal to the other side surface 11s and the contact bar 15. There is. Further, a tapered surface 24s is formed at the tip of each stopper release member 24 so as to be inclined downward in FIG. 5 as the distance from the contact bar 15 is increased. In the actuated state, as shown in FIGS. 4 and 5, each stopper release member 24 is between the gas spring 22 and the upper surface of the stopper 23 without the tapered surface 24s coming into contact with the outer peripheral surface of the gas spring 22. It is fixed to the corresponding contact bar 15 so as to be located at.

Subsequently, the operation of the pressing mechanism 20 of the mounting table 1 when being transported by the automatic guided vehicle 50 will be described.

When the automatic guided vehicle 1 of the present disclosure is transported by the automatic guided vehicle 50, the automatic guided vehicle 50 is moved from between the legs 14 to the lower part of the central portion of the table body 10 (mounting surface 10s). At this time, since the distance between the pressing members 21 in the direction along each side surface 11s of the outer frame 11 is longer than the one having the larger overall length and width of the automatic guided vehicle 50, the automatic guided vehicle 50 is moved forward, backward, left and right. It is possible to enter below the mounting table 1 (table body 10) from any of the four directions. As a result, the mounting table 1 can be transported by using a relatively small automatic guided vehicle 50 having excellent maneuverability while ensuring the mountability of the mounting table 1. After stopping the automatic guided vehicle 50 below the central portion of the table body 10 (mounting surface 10s), the elevating mechanism 51 of the automatic guided vehicle 50 is operated, and as shown in FIG. Raise the main body 10). As a result, the mounting table 1 (and the articles mounted on the mounting table 1) can be transported in a state of being lifted by the automatic guided vehicle 50.

Further, when some obstacle comes into contact with at least one of the plurality of contact bars 15 extending along the side surface 11s of the table body 10 during the transportation of the mounting table 1 by the automatic guided vehicle 50, as shown in FIG. The contact bar 15 is pushed by an obstacle and approaches the side surface 11s of the base body 10. When any of the contact bars 15 approaches the corresponding side surface 11s in this way, the tapered surface 24s of the stopper release member 24 connected to the contact bar 15 approaches the side surface 11s of the contact bar 15, and the gas spring 22 Contact the outer peripheral surface of the. Further, as shown in FIG. 7, the stopper release member 24 presses the gas spring 22 upward in the drawing by the tapered surface 24s in response to the approach of the corresponding contact bar 15 to the side surface 11s. As a result, the gas spring 22 rotates counterclockwise in FIG. 7, and the engagement between the locking portion 23a of the stopper 23 and the locked portion 21a of the pressing member 21 is released accordingly. When the engagement between the locking portion 23a and the locked portion 21a is released, the gas spring 22 extends as shown in FIGS. 6 and 7, whereby the pressing member 21 is urged by the gas spring 22. The corresponding contact portion 53 of the automatic guided vehicle 50 is pressed.

As described above, when an obstacle comes into contact with at least one of the contact bars 15 extending along the side surface 11s of the table body 10 (outer frame 11) during transportation of the mounting table 1 by the automatic guided vehicle 50, the contact The bar 15 is pushed by an obstacle and approaches the side surface 11s of the base body 10. Then, the pressing mechanism 20 presses the contact portion 53 of the contact sensor 52 of the automatic guided vehicle 50 in conjunction with the approach of the contact bar 15 to the side surface 11s. As a result, when the mounting table 1 is transported by the automatic guided vehicle 50, the presence of obstacles is more reliably present in the contact sensor 52 (detection unit 54) of the automatic guided vehicle 50 while suppressing erroneous detection of obstacles. It is possible to detect it and further improve the safety.

Further, the pressing mechanism 20 has a gas spring 22 capable of urging the pressing member 21 capable of pressing the contact portion 53 of the automatic guided vehicle 50 toward the contact portion 53, and the pressing member 21 resisting the urging force of the gas spring 22. It includes a stopper 23 that locks the contact bar 15 so as to be separated from the contact portion 53, and a stopper release member 24 that releases the lock of the pressing member 21 by the stopper 23 in response to the approach of the contact bar 15 to the side surface 11s. That is, when the contact bar 15 is pushed by an obstacle and approaches the side surface 11s of the base body 10, the stopper release member 24 connected to the contact bar 15 releases the lock of the pressing member 21 by the stopper 23, and accordingly. The gas spring 22 urges the pressing member 21 so as to press the contact portion 53 of the contact sensor 52 of the automatic guided vehicle 50. As a result, the contact portion 53 of the automatic guided vehicle 50 is quickly pressed by the pressing member 21 in response to the contact of the obstacle with the contact bar 15, and the obstacle is pressed by the contact sensor 52 (detection portion 54) of the automatic guided vehicle 50. It is possible to detect the existence of the vehicle with good responsiveness.

Further, in the mounting table 1, the end of the gas spring 22 opposite to the pressing member 21 side is rotatably supported by the table body 10, and the stopper 23 extends along the gas spring 22. It is fixed to the base body 10 and has a locking portion 23a that engages with the locked portion 21a of the pressing member 21. The stopper release member 24 has a tapered surface 24s that can come into contact with the gas spring 22, and the gas spring 22 is pressed by the tapered surface 24s in response to the approach of the contact bar 15 to the side surface 11s to lock the stopper 23. The gas spring 22 is rotated so that the engagement between the portion 23a and the locked portion 21a of the pressing member 21 is released. As a result, the moving distance of the contact bar 15 with respect to the side surface 11s of the base body 10 is shortened, and the locking portion 23a of the stopper 23 and the locked portion 21a of the pressing member 21 are engaged with each other in response to the movement of the contact bar 15. Can be released.

Further, in the mounting table 1, each pressing mechanism 20 is arranged inside the intersection of the two side surfaces 11s of the table body 10 (outer frame 11) so that the gas spring 22 extends along the diagonal line of the outer frame 11. Will be done. Further, each pressing mechanism 20 has a stopper release member 24 connected to a contact bar 15 along one of the two side surfaces 11s intersecting with each other, and a stopper connected to a contact bar 15 along the other of the two side surfaces 11s. Includes a release member 24. This makes it possible to expand the detectable range of obstacles by one pressing mechanism 20.

Further, as the automatic guided vehicle 50 used together with the mounting table 1, by using a vehicle including an elevating mechanism 51 for lifting the table body 10, wheels (casters) are omitted from the mounting table 1 and the mounting table 1 is installed. It is possible to ensure good stability in. However, wheels may be provided on, for example, each leg 14 of the mounting table 1 so that the mounting table 1 is connected to the automatic guided vehicle 50 and can travel together with the automatic guided vehicle 50.

Further, the pressing mechanism 20 includes, but is not limited to, a gas spring 22 as an urging member. That is, as shown in FIG. 8, the urging member of the pressing mechanism 20 includes a rod 221 connected to the pressing member 21, an elastic body (for example, a coil spring) 222 for urging the rod 221, and the rod 221 and elasticity. It may be a spring unit 22X including a cylinder (housing) 223 that accommodates the body 222 and is rotatably supported by the base body 10. Further, the contact bar 15 does not necessarily have to be provided on all the side surfaces 11s of the base body 10 (outer frame 11).

FIG. 9 is a plan view showing another mounting table 1B of the present disclosure. Of the components of the mounting table 1B, the same elements as the mounting table 1 described above are designated by the same reference numerals, and duplicate description will be omitted.

The mounting table 1B shown in FIG. 9 includes a plurality of pressing mechanisms 20B (four in the example of FIG. 9) that are different from the pressing mechanism 20 of the mounting table 1. As shown in FIGS. 8 and 9, each pressing mechanism 20B includes a rotating link 25 having a contact portion 251 provided at one end and a stopper 26, and is 1 with respect to each side surface 11s of the outer frame 11. It is provided one by one. The other end of the rotation link 25 of each pressing mechanism 20B is rotated by the base body 10 (outer frame 11) so that the contact portion 251 can contact the contact portion 53 of the contact sensor 52 of the automatic guided vehicle 50. It is supported freely. The stopper 26 of each pressing mechanism 20B is connected (fixed) to the contact bar 15 so as to extend in a direction orthogonal to the corresponding contact bar 15, and is slidable by the base body 10 (outer frame 11). Be supported. Further, each stopper 26 includes a ball plunger 27, and each rotation link 25 is formed with a recess (not shown) that can engage with the ball of the ball plunger 27 of the corresponding stopper 26. Hereinafter, the state in which the rotating link 25 engages with the ball plunger 27 of the corresponding stopper 26 is referred to as the “operated state” of the pressing mechanism 20B.

In the actuated state of the pressing mechanism 20B, the rotating link 25 is locked by the stopper 26 so that the contact portion 251 is close to the contact bar 15, thereby restricting the rotation of the rotating link 25. Further, in the actuated state, each rotation link 25 extends substantially parallel (substantially horizontal) to the mounting surface 10s so as to be orthogonal to the corresponding side surface 11s (contact bar 15). As a result, in the activated state, as shown in FIG. 10, a sufficient space is secured below each pressing mechanism 20B, so that the size restriction of the automatic guided vehicle 50 used together with the mounting table 1B can be reduced. Can be done.

When the mounting table 1B including the pressing mechanism 20B is transported by the automatic guided vehicle 50, when an obstacle comes into contact with at least one of a plurality of contact bars 15 extending along the side surface 11s of the table body 10, FIG. As shown in 11, the contact bar 15 is pushed by an obstacle and approaches the side surface 11s of the base body 10. When any of the contact bars 15 approaches the corresponding side surface 11s in this way, the stopper 26 connected to the contact bar 15 moves to the inner side of the corresponding outer frame 11, and is rotated by the ball plunger 27 accordingly. The lock of the link 25 is released. As a result, as shown in FIG. 11, the rotation link 25 rotates with respect to the base body 10 due to gravity, and the contact portion 251 presses the contact portion 53 of the contact sensor 52 of the automatic guided vehicle 50. As a result, the pressing mechanism 20B also makes it possible for the contact sensor 52 (detection unit 54) of the automatic guided vehicle 50 to detect the presence of the obstacle in response to the contact of the obstacle with the contact bar 15. Further, the pressing mechanism 20B can be configured at a lower cost than the pressing mechanism 20 including the gas spring 22. Further, as shown in FIGS. 9 to 11, one end of the wire 28 is fixed to each rotating arm 25, and when the pressing mechanism 20B is activated, the wire 28 is pulled to rotate the rotating ring 25. This makes it possible to relock the rotating link 25 to the stopper 26.

The rotation link 25 is urged between the rotation link 25 and the base body 10 in order to rotate the rotation link 25 more responsively in response to contact with the contact bar 15 of an obstacle. An urging member 29 (for example, an elastic body such as a torsion coil spring, see FIG. 10) may be provided. Further, a plurality of pressing mechanisms 20B may be provided on each side surface 11s of the outer frame 11. Further, the rotating link 25 may include a rod including the contact portion 251 and a main body (housing) that slidably supports the rod. As a result, in the actuated state, the contact portion 251 and the rod are pushed into the main body so that the contact portion 251 does not protrude to the outside of the contact bar 15, and the contact portion 251 is rotated as the rotation link 25 is rotated. The 251 can be projected from the main body by centrifugal force and brought into contact with the contact portion 53. Further, wheels may be provided on each leg portion 14 of the mounting table 1B so that the mounting table 1B is connected to the automatic guided vehicle 50 and can travel together with the automatic guided vehicle 50.

As described above, the mounting table of the present disclosure is a mounting table (1, 1B) on which an article is placed and is transported by an automatic guided vehicle (50) including a contact sensor (52). A base body (10) including a mounting surface (10s) on which an article is placed and a plurality of legs (14) provided at intervals from each other, and a side surface (11s) of the base body (10). At least one contact bar (15) extending along the line and supported by the platform body (10) so as to be accessible to the side surface (11s), and the side surface (11s) of the contact bar (15). It includes a pressing mechanism (20, 20B) that presses the contact portion (53) of the contact sensor (52) of the automatic guided vehicle (50) in conjunction with the approach to the vehicle.

When the automatic guided vehicle of the present disclosure is transported by an automatic guided vehicle, the automatic guided vehicle is moved below the mounting surface of the automatic guided vehicle from between the legs, and the automatic guided vehicle supports the vehicle. Further, when an obstacle comes into contact with a contact bar extending along the side surface of the table body during transportation of the mounting table by an automatic guided vehicle, the contact bar is pushed by the obstacle and approaches the side surface of the table body. Then, the pressing mechanism presses the contact portion of the contact sensor of the automatic guided vehicle in conjunction with the approach to the side surface of the contact bar. As a result, when the mounting table of the present disclosure is transported by the automatic guided vehicle, the contact sensor of the automatic guided vehicle can more reliably detect the presence of the obstacle while suppressing erroneous detection of obstacles to improve safety. It can be further improved.

Further, the pressing mechanism (20) has a pressing member (21) capable of pressing the contact portion (53) of the automatic guided vehicle (50) and the pressing member (21) on the contact portion (53) side. The urging member (22, 22X) capable of urging and the pressing member (21) are locked so as to be separated from the contact portion (53) against the urging force of the urging member (22, 22X). The stopper (23) is connected to the contact bar (15), and the pressing member (21) is locked by the stopper (23) in response to the approach of the contact bar (15) to the side surface (11s). It may include a stopper release member (24) for releasing the above. In such a pressing mechanism, when the contact bar is pushed by an obstacle and approaches the side surface of the table body during the transportation of the mounting table by the automatic guided vehicle, the stopper release member connected to the contact bar locks the pressing member by the stopper. The urging member urges the pressing member so as to press the contact portion of the contact sensor of the automatic guided vehicle. As a result, the contact portion of the automatic guided vehicle can be quickly pressed by the pressing member in response to the contact of the obstacle with the contact bar, and the contact sensor of the automatic guided vehicle can detect the presence of the obstacle with good responsiveness. It becomes. In this case, the urging member may be a gas spring, and includes a rod connected to the pressing member, an elastic body for urging the rod, and a housing for accommodating the rod and the elastic body. You may.

Further, the end portion of the urging member (22, 22X) opposite to the pressing member (21) side may be rotatably supported by the base body (10), and the stopper (23) may be supported. Is fixed to the base body (10) so as to extend along the urging member (22, 22X) and engages with a part of the pressing member (21). The stopper release member (24) has a tapered surface (24s) capable of contacting the urging member (22, 22X), and the side surface of the contact bar (15). The urging member (22, 22X) is pressed by the tapered surface (24s) in response to the approach to (11s) to form the locking portion (23a) and the part (21a) of the pressing member (21). The urging member (22, 22X) may be rotated so as to be disengaged from the above. As a result, it is possible to release the engagement between the locking portion of the stopper and a part of the pressing member according to the movement of the contact bar while shortening the moving distance of the contact bar with respect to the side surface of the base body.

Further, the front base body (10) may include two side surfaces (11s) intersecting each other, and the pressing mechanism (20) is inside the intersection of the two side surfaces (11s). The pressing mechanism (20) may be arranged with the stopper release member (24) connected to the contact bar (15) along one of the two side surfaces (11s) and the two said ones. It may include the stopper release member (24) connected to the contact bar (15) along the other side of the side surface (11s). This makes it possible to expand the detectable range of obstacles by one pressing mechanism.

Further, the base body (10) has a square outer frame (11) having four side surfaces (11s) and four legs (11) extending from the corners of the outer frame (11), respectively. The pressing mechanism (20) may include the outer frame (20) so that the urging member (22, 22X) extends along the diagonal line of the outer frame (11). It may be arranged one by one inside the corner of 11).

Further, the pressing mechanism (20B) has a contact portion (251) provided at one end, and the contact portion (251) is a contact portion of the contact sensor (52) of the automatic guided vehicle (50). A rotating link (25) whose other end is rotatably supported by the base body (10) so as to be able to contact (53), and the contact portion (251) are the contact bar (15). The rotating link (25) is locked so as to be separated from the rotating link (25), and the rotating link (25) is released as the contact bar (15) approaches the side surface (11s). It may include a stopper (26). In such a pressing mechanism, when the contact bar is pushed by an obstacle and approaches the side surface of the table body during the transfer of the mounting table by the automatic guided vehicle, the locking of the rotating link by the stopper is released. As a result, the rotation link rotates with respect to the base body, and the contact portion presses the contact portion of the contact sensor of the automatic guided vehicle. With such a pressing mechanism, it is possible to make the contact sensor of the automatic guided vehicle detect the presence of the obstacle in response to the contact of the obstacle with the contact bar.

Further, the base body (10) has a square outer frame (11) having four side surfaces (11s) and four legs (11) extending from the corners of the outer frame (11), respectively. 14) may be included, and the pressing mechanism (20B) extends in a direction orthogonal to the corresponding side surface (11s) of the rotating link (25). At least one may be provided for each.

Further, the automatic guided vehicle (509) may include an elevating mechanism (51) for lifting the platform body (10). As a result, it is possible to omit the wheels from the mounting table and ensure good stability when the mounting table is installed. However, the mounting table of the present disclosure may include, for example, wheels provided on the legs, and may be connected to an automatic guided vehicle and travel together with the automatic guided vehicle.

It goes without saying that the invention of the present disclosure is not limited to the above-described embodiment, and various changes can be made within the scope of the extension of the present disclosure. Furthermore, the above-described embodiment is merely a specific embodiment of the invention described in the column of the outline of the invention, and does not limit the elements of the invention described in the column of the outline of the invention.

The invention of the present disclosure can be used in the manufacturing industry of a mounting table on which an article is placed.

1,1B mounting table, 10 main body, 10s mounting surface, 11 outer frame, 11s side surface, 12,13 beam, 14 legs, 15 contact bar, 16 spring, 20,20B pressing mechanism, 21 pressing member, 21a cover Locking part, 22 gas spring, 22X spring unit, 221 rod, 222 elastic body, 223 cylinder, 23,26 stopper, 23a locking part, 24 stopper release member, 24s tapered surface, 25 rotating link, 251 contact part , 27 ball plunger, 28 wire, 29 urging member, 50 automatic guided vehicle, 51 lifting mechanism, 52 contact sensor, 53 contact part, 54 detector.

Claims (8)

A loading platform on which articles are placed and transported by an automatic guided vehicle including a contact sensor.
A base body including a mounting surface on which the article is placed and a plurality of legs provided at intervals from each other.
With at least one contact bar extending along the side surface of the pedestal body and being accessiblely supported by the pedestal body with respect to the side surface.
A pressing mechanism that presses the contact portion of the contact sensor of the automatic guided vehicle in conjunction with the approach of the contact bar to the side surface.
A stand equipped with. In the mounting table according to claim 1,
The pressing mechanism
A pressing member capable of pressing the contact portion of the automatic guided vehicle, and
An urging member capable of urging the pressing member toward the contact portion,
A stopper that locks the pressing member so as to be separated from the contact portion against the urging force of the urging member.
A mounting table that is connected to the contact bar and includes a stopper release member that releases the locking of the pressing member by the stopper in response to the approach of the contact bar to the side surface. In the mounting table according to claim 2.
The end of the urging member on the side opposite to the pressing member side is rotatably supported by the base body.
The stopper is fixed to the base body so as to extend along the urging member, and has a locking portion that engages with a part of the pressing member.
The stopper release member has a tapered surface capable of contacting the urging member, and presses the urging member with the tapered surface in response to the approach of the contact bar to the side surface to press the locking portion and the locking portion. A mounting table that rotates the urging member so that the pressing member is disengaged from the part. In the mounting table according to claim 2 or 3.
The pedestal body includes two said sides that intersect each other.
The pressing mechanism is arranged inside the intersection of the two sides.
The pressing mechanism includes the stopper release member connected to the contact bar along one of the two side surfaces, and the stopper release member connected to the contact bar along the other of the two side surfaces. A stand including. In the mounting table according to claim 4,
The pedestal body includes a quadrangular outer frame having the four side surfaces and four legs extending from the corners of the outer frame, respectively.
The pressing mechanism is a mounting table in which the urging members are arranged one by one inside the corners of the outer frame so that the urging members extend along the diagonal line of the outer frame. In the mounting table according to claim 1,
The pressing mechanism
It has a contact portion provided at one end, and the other end is rotatably supported by the base body so that the contact portion can contact the contact portion of the contact sensor of the automatic guided vehicle. With a rotating link
It includes a stopper that locks the rotation link so that the contact portion is separated from the contact bar and releases the lock of the rotation link as the contact bar approaches the side surface. Mounting stand. In the mounting table according to claim 6.
The pedestal body includes a quadrangular outer frame having the four side surfaces and four legs extending from the corners of the outer frame, respectively.
The pressing mechanism is a mounting table provided at least one for each side surface so that the rotation link extends in a direction orthogonal to the corresponding side surface. In the mounting table according to any one of claims 1 to 7, the automatic guided vehicle is a mounting table including an elevating mechanism for lifting the table body.

Images