JP4526887B2 - Distribution rack equipment - Google Patents

Description

  The present invention relates to a distribution shelf device for an operator to take out, for example, a boxed electrical component and perform a predetermined operation.

  Conventionally, as a physical distribution shelf device, a shelf that transports an empty box after an assembly operator removes a part to be transported, such as packed electrical parts, from a box to a predetermined place using gravity. There is an apparatus (for example, refer to Patent Document 1). The shelf apparatus includes a supply shelf that is inclined downward toward the operator, a discharge shelf that is inclined downward toward the discharge side, and a switching shelf that is provided so as to be capable of reciprocating rotation along the inclination of both the shelves. In this physical distribution shelf device, the load is supplied and transported to the switching shelf in a state where the switching shelf is in the posture along the inclination of the supply shelf, and the empty box after the load removal work by the operator is inclined to the discharge shelf. Is sent to the discharge shelf from the switching shelf rotated along

By the way, during the operation of taking out the load that has been transported to the switching shelf, the next load is sequentially placed on the supply shelf. However, it is necessary to stop the load placed on the supply shelf so that the load does not move to the switching shelf side while the worker is working. For this reason, in the said shelf apparatus, the stopper is provided in the load conveyance surface of a supply shelf so that withdrawal is possible in the middle of a supply shelf, and this stopper is withdrawn according to the timing of an operation | work. In order to control the timing of the stopper exit / exit, a detector that detects the arrival of the load and a cylinder device that is driven according to a signal from the detector or that stops driving are provided.
Japanese Utility Model Publication No. 7-23713

  By the way, in recent years, this type of shelf apparatus may be moved in accordance with the situation (product assembly line) at the work site. However, in the above conventional shelf device, an electrically operated means such as a detector is used to move the stopper out. Alternatively, an air cylinder device may be used to move the stopper away. For this reason, special equipment for supplying electricity to each place where the shelf device is moved and piping equipment for an air cylinder are required. As described above, it is necessary to manage the electrical wiring and the air piping, which interferes with the work, and it may be difficult to change the layout of the shelf device in the factory.

  Therefore, an object of the present invention is to provide a shelf device that can simplify the working environment by reducing the number of special electrical equipment or air piping equipment.

The physical distribution shelf apparatus of the present invention is provided with a switching shelf for transporting an object to be transported, which is transported from a transport shelf on the upstream side in the transport direction, to a transport shelf arranged on the downstream side in the transport direction, on the transport shelf body. The switching shelf can be switched between an accepting posture for receiving the object to be conveyed from the upstream conveying shelf and a conveying posture for conveying the object to be conveyed to the downstream conveying shelf, and the conveying path of the upstream conveying shelf. Is provided with a stopper that can be switched between a locking posture that protrudes into the transported object and is locked to a transported object, and an unlocking posture that sinks into the transport surface of the transport path and prevents the transported object from moving downstream. A link mechanism is provided for setting the stopper in the unlocking posture in the receiving position of the switching shelf and setting the stopper in the locking posture in the transporting posture of the switching shelf, and the switching shelf is connected to the transport shelf body via a shelf support shaft. And can be rotated freely to accept and transport It is possible to switch between the locking posture and the unlocking posture by providing the stopper so as to be rotatable around the shaft on the conveyance shelf side, and the link mechanism is provided on the switching shelf side. An operation member that rotates around the shelf support shaft together with the switching shelf, and a stopper that is provided on the stopper side and rotated around the shaft body in accordance with the rotation operation of the operation member so that the stopper is locked and unlocked. And a spring for urging the operated member around the shaft body in a direction in which the stopper is in the locking posture .

  In the above configuration, since the stopper is in the unlocking posture in the receiving posture of the switching shelf, the object to be transported is transported on the transport shelf on the upstream side in the transport direction toward the downstream side, that is, the switching shelf. When the transported object reaches the switching shelf from the upstream transport shelf, the posture of the switching shelf is switched from the receiving posture to the transporting posture, and the link mechanism is activated by this switching operation, and the stopper is engaged from the unlocking posture. It switches to the stop position and is locked to the next object to be conveyed and prevents the object to be conveyed downstream. Then, when the object to be transported is transported to the transport shelf on the downstream side, the switching shelf is again switched to the accepting posture, and the stopper is switched to the unlocking posture via the link mechanism along with the operation of the transport shelf, The conveyed object can be conveyed again to the downstream side, that is, the switching shelf side. By sequentially placing the object to be conveyed on the conveyance shelf on the upstream side of the switching shelf, the object to be conveyed is conveyed to the conveyance shelf on the downstream side while repeating the above operation. In this way, the switching shelf and the stopper are connected by the link mechanism that switches the stopper between the locking posture and the locking release posture according to the posture of the switching shelf, so that the shelf device is moved for each location. Special equipment and air piping for supplying necessary electricity can be reduced. Therefore, the wiring and the like are reduced, and the working environment can be simplified.

  In the above configuration, the operated member is rotated in one direction around the shaft body by the operating member against the elasticity of the spring in the receiving position of the switching shelf, and the operated member holds the stopper in the unlocking posture. ing. When the object to be conveyed is transported to the switching shelf and the switching shelf is switched to the transporting posture, and the operation member rotates about the shelf support shaft, the operated member is rotated by the elastic force of the spring and the operated member is stopped by the stopper. Is in a locked posture, and the conveyed object is prevented from being conveyed downstream, that is, to the switching shelf side.

  In particular, when a weight is applied to the switching shelf so that a load is applied so that the switching shelf is in a receiving posture around the shelf support shaft, the weight is transferred to the switching shelf in the receiving posture. It is preferable that the switching shelf is set to a weight that rotates to the transport posture by the weight of the object to be transported. According to this configuration, the switching shelf is in a receiving posture due to the weight of the weight, and when the object to be transported is transported and placed on the switching shelf from the transport shelf, the weight acts on the transport shelf, and the transport shelf is the weight. While the load due to the weight is maintained, the receiving posture is switched to the conveying posture, and the object to be conveyed is conveyed to the conveying shelf on the downstream side. That is, it is possible to prevent the switching shelf from rapidly rotating around the shelf support shaft when a transported object is placed on the switching shelf due to the weight of the weight acting on the switching shelf. It is possible to secure safety or to protect the conveyed object.

Objects diverted transport rack, the detection member for detecting that the transported object has arrived at a predetermined position of the transfer rack from the upstream side in the conveying direction are provided on the shelf device main body, the detection member, projecting to the conveying path of the conveying shelf It is possible to switch between the detection posture and the transport allowable posture that is pressed by the arrival of the transported object and sinks into the transport surface of the transport path, and prevents the transported object from moving downstream on the upstream side of the detection member. This stopper is switchable between a locking posture that protrudes into the conveyance path of the conveyance shelf and locks to the object to be conveyed, and a locking release posture that sinks into the conveyance surface of the conveyance path, It is preferable that a link mechanism is provided for setting the stopper in the unlocking posture in the detection posture of the detection member and setting the stopper in the locking posture in the permissible conveyance posture of the detection member.

  In the above configuration, when the object to be conveyed is conveyed from the upstream conveyance shelf, the detection member changes from the detection posture to the conveyance allowable posture, and the stopper that has been in the unlocking posture until then is switched to the locking posture by the link mechanism. Instead, when the transported object to be transported next is blocked and the transported object passes through the detection member and the detection member returns to the detection posture again, the stopper in the locking posture is locked by the link mechanism. Since it returns to the release posture, the next object to be conveyed can be conveyed toward the downstream side. While the above operation is repeated, the objects to be conveyed are sequentially conveyed to the downstream side of the conveyance shelf. Also in this case, special equipment for supplying electricity necessary for each place where the shelf device is moved, air piping, etc. can be reduced, so that the wiring and the like are reduced, and the working environment is reduced. Can be simplified.

  In particular, the detection member can be switched between a detection posture and a conveyance allowable posture by being provided rotatably on the shelf device body via a shaft body, and the link mechanism is provided on the detection member side and is pivoted together with the detection member. The stopper is engaged with the locking posture by an operating member that rotates around the body and an operated member that is provided on the stopper side and rotates around a shaft body different from the shaft body as the operating member rotates. The operation member is biased in the direction in which the detection member is rotated to the detection posture, and the operated member is attached in the direction in which the stopper is rotated to the lock release posture. Preferably, a biasing spring is provided.

  According to the above configuration, the operation member is urged by the spring in the direction in which the detection member is rotated to the detection posture, and the operated member is urged in the direction in which the stopper is rotated to the unlocking posture. Therefore, when the transported object is transported to the downstream side of the transport shelf and the detection member is pressed against the elasticity of the spring by its weight and the transport posture is changed from the detection posture, the operation member is pivoted along with the operation. With this operation, the operated member rotates about the shaft body, and the stopper assumes the locking posture, thereby preventing the next object to be conveyed from being conveyed downstream. When the transported object passes through the detection member, the detection member again becomes the detection posture by the elastic force of the spring, and the stopper is again switched to the unlocking posture by switching the posture. By repeating the above operation, the objects to be conveyed are sequentially conveyed to the downstream side.

  According to the physical distribution shelf device of the present invention, since no electrical device is required to drive the stopper that prevents the conveyance of the object to be conveyed, the electricity for driving the stopper that has been necessary so far is supplied. Therefore, it is possible to reduce the number of facilities and the air piping, etc., and to reduce the wiring and the like, thereby simplifying the work environment.

  Hereinafter, a distribution shelf device according to an embodiment of the present invention will be described with reference to the drawings. This physical distribution shelf device is used so that, for example, an assembly part packed in a box, for example, is transported from an upstream side to a downstream side as an object to be transported, and an operator takes out electrical parts from the box and works on the downstream side. 1 is a side view showing the overall structure of the distribution shelf device, FIG. 2 is a perspective view showing a part of the distribution shelf device, FIG. 3 is an enlarged side view showing a part of the distribution shelf device, and FIG. 5 is an enlarged side view from the side, and FIG. 5 is an operation diagram showing the operation of the first shock absorber accompanying the switching of the posture of the first transport shelf.

  1 to 3, the physical distribution shelf device 1 includes a shelf device body 2, a transport shelf 3, and a switching shelf 4 disposed between the transport shelves 3. The shelf apparatus main body 2 has a frame structure of pipe members, and includes leg members 5, 6, 7, and 8 arranged at four corners in plan view and left and right leg members 5, 6, 7, and 8 in side view. A pair of lateral rail members 10 and 11 that connect the upper end portions and the lower end portions, and leg members 6 and 8 in the width direction B when viewed from the front, and leg members 5 and 7 in the width direction B when viewed from the back and forth It is comprised from the width direction crosspiece member 12 connected in several places by the direction H, and the reinforcing bar member 13 passed to the up-down direction H between the upper and lower horizontal direction crosspiece members 10 and 11. FIG. The leg members 5, 6, 7, and 8 and the lateral beam members 10 and 11, the leg members 5, 6, 7, and 8 and the width direction beam member 12, the lateral beam members 10, 11 and the reinforcing bar member 13 are joints, respectively. It is fixed through. In addition, casters 5a and 6a are attached to lower end portions of the leg members 5, 6, 7 and 8 via attachment members, so that the shelf apparatus body 2 can be moved from the installation location.

  The transport shelf 3 includes a first transport shelf 3A, a second transport shelf 3B, a third transport shelf 3C, and a fourth transport shelf 3D arranged in the shelf device body 2, and the first transport shelf 3A and the second transport shelf 3B, the third transport shelf 3C, and the fourth transport shelf 3D are arranged at a predetermined interval from the upper part to the lower part of the shelf apparatus body 2, that is, at least an interval through which the articles 16, 17, 18, 18A can pass. Is provided. Further, the first transport shelf 3A, the second transport shelf 3B, the third transport shelf 3C, and the fourth transport shelf 3D are respectively an upper open section U-shaped first rail member 20 and a second rail that extend in the left-right direction. In the width direction B between the end portions of the member 21, the third rail member 22, and the fourth rail member 23 and the first rail member 20, the second rail member 21, the third rail member 22 and the fourth rail member 23, respectively. Guide rollers laid side by side in the connecting frames 25, 26, 27, 28 to be connected and the recesses 20a, 21a, 22a, 23a formed over substantially the entire length of the rail members 20, 21, 22, 23 in the length direction. 30, 31, 32, 33.

  The first rail member 20, the second rail member 21, the third rail member 22, the fourth rail member 23, and the connection frames 25, 26, 27, and 28 are assembled through joints. The guide rollers 30, 31, 32, and 33 are rotatably installed in the recesses 20a, 21a, 22a, and 23a via support shafts (not shown). Since the surfaces connecting the outer peripheral surfaces of the guide rollers 30, 31, 32, 33 are used as the transport paths 35, 36, 37 of the articles 16, 17, 18, the outer peripheral surfaces of the guide rollers 30, 31, 32, 33. Is in a position protruding upward from the first rail members 20, 21, 22, 23. Of the first rail members 20, 21, 22, 23, the lowermost fourth rail member 23 is the longest, followed by the uppermost first rail member 20, third rail member 22, second rail member. It becomes shorter in the order of 21. The fourth transport shelf 3D is used as a shelf for transporting the empty box 18A.

  The first rail member 20 is provided so as to be inclined downward at a predetermined inclination angle θ1 from one side of the shelf apparatus body 2 to the other side (operator side), whereby the conveyance path 35 is directed toward the other side. Thus, the arrangement is inclined downward at a predetermined inclination angle θ1. 3 A of 1st conveyance shelves are arrange | positioned so that it may pass to the leg members 5 and 7 of the one side, and the reinforcement collar members 13 and 13 of the other side, and the edge part of the connection frame 25 of 3 A of 1st conveyance shelves is the leg members 7 and the reinforcing members 13 and 13 are fixed via joints.

  The second rail member 21 is provided so as to be inclined downward at a predetermined inclination angle θ2 from the other side of the shelf device body 2 to the one side, whereby the conveyance path 36 is inclined at a predetermined inclination angle toward the one side. The arrangement is inclined downward at θ2. The 2nd conveyance shelf 3 is arrange | positioned so that it may pass to the reinforcement rod members 13 and 13 of the other side, and the reinforcement rod members 13 and 13 of the one side, and the edge part of the connection frame 26 of the 2nd conveyance shelf 3B is the reinforcement rod member 13. , 13 is fixed through a joint.

  The third rail member 22 is provided so as to be inclined downward at a predetermined inclination angle θ3 from one side to the other side of the shelf apparatus main body 2, whereby the conveyance path 37 has a predetermined inclination angle toward the other side. The arrangement is inclined downward at θ3. The third transport shelf 3 is fixed to the reinforcing rod members 13 and 13 on the one side and the leg members 6 and 8 on the other side via joints.

  The fourth rail member 23 is provided so as to be inclined downward at a predetermined inclination angle θ4 from the other side of the shelf device body 2 to the one side, whereby the conveyance path 38 is inclined at a predetermined inclination angle toward the one side. The arrangement is inclined downward at θ4. The 4th conveyance shelf 3 is arrange | positioned so that it may pass to the leg members 6 and 8 of the other side, and the leg members 5 and 7 of the one side, and the connection frame 28 of 4th conveyance shelf 3D is being fixed through the joint. These inclination angles θ1 to θ4 are set to angles at which the conveyed objects 16, 17, 18, 18A are conveyed while rotating the guide rollers 30, 31, 32, 33 by their own weight.

  The switching shelf 4 includes a first switching shelf 4A and a second switching shelf 4B. The first switching shelf 4 is provided on the other side of the shelf device body 2 in a continuous portion of the first transport shelf 3A and the second transport shelf 3B, and the second switching shelf 4B is provided on the first side of the shelf device body 2. It is provided in a continuous portion between the second transport shelf 3B and the third transport shelf 3C.

  The first switching shelf 4A changes the direction of the transported object 17 transported from the first transport shelf 3A and transports it toward the second transport shelf 3B. The first switching shelf 4A includes a shelf support shaft 46 along the width direction B that is suspended by a hook-like suspension member 45 that is fixed between the leg members 6 and 8 on the other side and fixed through a joint. A first switching frame 47 rotatably supported on the shelf support shaft 46; The first switching frame 47 is attached to the shelf support shaft 46 via a joint and is extended toward the first transport shelf 3A. The side frame members 47a, 47b on both sides in the width direction B, the side frame members 47a, A front end frame member 47c attached via a joint between the front end portions of 47b, and guide rod members 48 and 49 which are parallel to the side frame members 47a and 47b and are passed to the shelf support shaft 46 and the front end frame member 47c. It is configured.

  The first switching shelf 4 has a receiving posture J1 in which the first switching frame 47 is raised and rotated around the shelf support shaft 46 in order to receive the conveyed object 17 from the upstream first conveying shelf 3A, and the conveyed object 17 is When transported to the first switching frame 47, the first switching frame 47 is rotated downward around the shelf support shaft 46 by the weight of the transported object 17, and transports the transported object 17 to the second transport shelf 3B. It is possible to switch to the transport posture J2. Reference numeral 47d in the drawing is a stopper member that restricts the downward movement rotation range of the first switching frame 47, and is fixed to the reinforcing rod member 13 on the other side. Reference numeral 47e in the drawing is a stopper member that restricts the range of upward movement of the first switching frame 47, and is fixed to the reinforcing rod member 13 on the other side.

  A first switching device 55 for switching the posture of the first switching shelf 4A between the receiving posture J1 and the transporting posture J2 is provided. A second switching device 56 is provided for switching the attitude of the second switching shelf 4B between the receiving attitude J1 and the transport attitude J2. The first switching device 55 includes a first weight device 57 for rotating the first switching frame 47 up against its weight, and a first gas damper for limiting the rotation speed of the first switching frame 47. 58.

  The first weight device 57 is attached to a lower portion on one side of the first switching frame 47 along the width direction B and rotates together with the first switching frame 47, and the shaft of the mounting rod member 61. A first wire 63 connected to one end portion in the direction via a connector 61a, a first pulley 66 attached to the upper portion of the other reinforcing rod member 13 via an attachment member 65, and the first pulley 66. The first reinforcing rod member 13 is fixed along the other first reinforcing rod member 13 via a joint in the middle of the first rod 67 and the other reinforcing rod member 13 connected to the tip of the first wire 63 wound around the wire. It is comprised from the cylindrical weight exterior member 68. As shown in FIG.

  The cylinder side base end portion of the first gas damper 58 is attached to the center in the width direction B of the width direction crosspiece member 12 which is passed along the width direction B between the other leg members 6 and 8 below the first switching frame 47. The mounting member 65 is rotatably attached via a shaft 71a. The rod-side tip of the first gas damper 58 is attached to the attachment rod member 61 via the bracket 72 and is attached to the shaft 71b so as to be rotatable.

  The physical distribution shelf device 1 further includes a first shock absorber 75 for buffering the transported object 17 that is transported to the first switching shelf 4A and slides on the guide rod members 48 and 49. . The first shock absorber 75 is passed to a pair of rotating arm members 76 assembled to the support rod member 9 that extends between the leg members 6 and 8 along the width direction, and to the tip of the rotating arm member 76. And a base end portion through a shock-absorbing shaft member 77 whose both end portions are rotatably passed through the rotating arm member 76 and a sleeve portion 80 that is rotatably fitted around the center of the buffer shaft member 77 in the width direction B. Is extended and attached in a direction perpendicular to the axial direction of the buffer shaft member 77, and the buffer arm member 82 is inserted through the sleeve portion 81 at the tip of the buffer arm member 82 and arranged in parallel with the buffer shaft member 77. It is comprised from the receiving collar member 83 made. The buffer arm member 82 is rotatably supported by the rotating arm member 76 so as not to open more than a certain angle with respect to the rotating arm member 76. Further, as shown in FIG. 5, the first shock absorber 75 is configured such that the receiving hook member 83 has an opening angle α in which the rotation arm member 76 and the shock arm member 82 can be changed by the weight of the members constituting them. The first switching frame 47 is mounted. Reference numeral 89 in the drawing is a stopper for limiting the rotation range of the buffer shaft member 77.

  In a state where the conveyed object 17 is not placed on the guide rod members 48 and 49 of the first switching frame 47, the weight of the first weight 67 works on the first switching shelf 4A. The shelf 4 </ b> A has a receiving posture J <b> 1 in which the first switching frame 47 is lifted and rotated around the shelf support shaft 46. When the transported object 17 is transported and placed on the first switching frame 47, the transported object 17 hits the receiving rod member 83. And the receiving rod member 83 is pressed in the conveyance direction of the 1st switching frame 47 by the weight of the member which comprises the 1st buffer 75 with the weight of the to-be-conveyed object 17, and it shows as a continuous line from the virtual line of FIG. To retreat. That is, the buffer arm member 82 moves in a standing direction while retracting so that the inclination angle with respect to the horizontal plane is increased. With the operation of the buffer arm member 82, the buffer shaft member 77 and the rotating arm member 76 are moved around the support rod member 9. The opening angle α formed by the rotating arm member 76 and the buffer arm member 82 is reduced. In this way, the object to be transported 17 operates the first shock absorber 75 as described above according to its weight (weight acting in the transport direction), and the object 17 is transported by the operation of the first shock absorber 75. It is buffered so that the conveyance speed can be reduced, and it is possible to prevent the assembled parts from being damaged.

  By the way, when the article to be transported 17 is transported from the first transport shelf 3 </ b> A to the first switching frame 47 and placed thereon, it is between the first switching frame 47 and the mounting member 65 attached to the widthwise crosspiece member 12. Since the first gas damper 58 is interposed, the first switching frame 47 is slowly rotated around the shelf support shaft 46 by the buffering force of the first gas damper 58, and the tip frame member 47c is moved to the second transport shelf. Located on the 3B side. In this way, when the posture of the first switching shelf 4A is changed from the receiving posture J1 to the transporting posture J2, the transported object 17 is transported toward the second transporting shelf 3B so as to slide on the guide rod members 48 and 49. Is done. The first switching shelf 4A is prevented from rotating further by the front end frame member 47c of the first switching frame 47 coming into contact with the stopper member 47d.

  At this time, the weight of the first weight 67 is acting on the first switching shelf 4A. However, since the first gas damper 58 is interposed between the first switching frame 47 and the mounting member 65, the first switching shelf 4A receives the receiving posture J1 at a low speed due to the buffering force of the first gas damper 58. Is switched to the transport posture J2. Thus, the weight of the first weight 67 is used when the first switching shelf 4A is switched from the receiving posture J1 to the transporting posture J2. Therefore, compared with the case where the first switching shelf 4A is switched from the receiving posture J1 to the transporting posture J2 with the buffering force of only the gas damper, it is possible to reduce the capacity of the installed gas damper, that is, the first gas damper 58. is there. In addition, since the first weight 67 is formed in a bowl shape and the first weight 67 is inserted into the cylindrical weight exterior member 68, the first weight 67 smoothly moves to the weight exterior member 68 when moving up and down. Since it is guided and the first weight 67 can be prevented from moving by the weight exterior member 68, safety can be ensured. Further, since the posture of the first switching shelf 4A is mechanically switched using the first weight device 57 and the first gas damper 58 instead of the device using electrical control, the conventional electrical wiring and Air piping for the air cylinder is not required.

  By the way, when the first switching shelf 4A is switched from the receiving posture J1 to the transporting posture J2, the transported object 17 is transported to the second transporting shelf 3B side by sliding on the guide rod members 48 and 49 by its weight. The Then, the first shock absorber 75 receives the weight as shown by the phantom line in FIG. 5 so that the opening angle α between the rotating arm member 76 and the shock arm member 82 is increased by the weight of the members constituting them. The scissor member 83 slides slightly on the guide scissors members 48 and 49. However, at this time, the opening angle α is set not to exceed 180 °. When the transported object 17 is transported to the second transport shelf 3B, the first switching shelf 4A loses the weight enough to hold the transport posture J2, so that the first switching shelf 4A is again driven by the weight of the first weight 67. It rotates around the shelf support shaft 46 and returns to the receiving posture J1. Also at this time, the first switching shelf 4 </ b> A rotates at a low speed by the buffering force of the first gas damper 58. In the first shock absorber 75, as the first switching shelf 4A rotates toward the receiving posture J1, the receiving rod member 83 is moved to the first switching frame by the weight of the members constituting the first shock absorber 75. 47 so that it slides on the downstream side of the first switching frame 47 so that the opening angle α returns to the angle at which the conveyed object 17 is waited.

  In the distribution shelf device 1, each of the first transport shelf 3A disposed upstream of the first switching shelf 4A in the transport direction and the second transport shelf 3B upstream of the second switching shelf 4B in the transport direction, A pair of stoppers 100 and 135 in the transport direction for restricting transport of the transported objects 16 and 18 are provided. As shown in FIG. 3, the stopper 100 protrudes into the transport paths 35 and 36 in accordance with the switching operation between the receiving posture J1 and the transport posture J2 of the first switching shelf 4A and the second switching shelf 4B. , 18 can be switched to a locking posture K1 and a locking release posture K2 sunk into the transport surfaces of the transport paths 35, 36.

  By the way, the bridging rod members 102, 103, 104 are arranged below the first transport shelf 3 </ b> A, the second transport shelf 3 </ b> B, and the third transport shelf 3 </ b> C across the reinforcing rod members 13. , 103, 104 are arranged in parallel to the first transport shelf 3A, the second transport shelf 3B, and the third transport shelf 3C, respectively. The mounting rod members 105 and 106 are assembled via joints across the downstream sides of the conveying rod members 102 and 103 on both sides in the width direction B in the conveying direction.

  Each of the stoppers 100 and 135 is formed by bending a metal plate, and includes a flat plate portion 108 on the upstream side in the transport direction and a protrusion formed on the downstream side of the flat plate portion 108 and projecting upward. A stop portion 109 and side wall portions 110 and 111 on both sides in the width direction B are provided. The first switching shelf 4A and the one stopper 100 are configured such that the stopper 100 is in the unlocking posture K1 in the receiving posture J1 of the first switching shelf 4A, and the stopper 100 is locked in the transporting posture J2 of the first switching shelf 4A. The first link mechanism 112 is connected.

  A fixing bracket 115 is fixed via a joint at the center position in the width direction B of the mounting rod members 105, 106, and 107. The fixed bracket 115 is formed in a U-shape in plan view from a front plate 116 on the upstream side in the transport direction and side plates 117 and 118 on both sides in the width direction B. The fixed bracket 115 is disposed at a position below the conveyance path 35. Between the side plates 117 and 118 of the fixed bracket 115, a first shaft body 120 serving as a rotation center of the stopper 100 is passed. The stopper 100 has side wall portions 110 and 111 disposed between the side plates 117 and 118 of the fixing bracket 115, and the first shaft body 120 penetrates the side wall portions 110 and 111.

  As shown in FIG. 4, the first link mechanism 112 has an operation member 121 that rotates together with the first switching frame 47 of the first switching shelf 4A. The operation member 121 is disposed at one end in the width direction B side of the mounting rod member 61 protruding from the shelf apparatus main body 2 to the one side in the width direction B, and has a base 121a facing upward, and a transport direction from the base 121a. It is formed in an L shape when viewed from the front side from the bowl-shaped operation portion 121b extending toward the upstream side. And the front-end | tip of the operation part 121b is extended in the conveyance direction upstream rather than the other reinforcement collar member 13. FIG.

  The first link mechanism 112 includes a stopper-side operated member 125 that is rotated at the tip of the operation portion 121 b of the operation member 121. The operated member 125 is formed in a rectangular shape in a side view and a U shape in a front view. A second shaft 123 passed to brackets 122 provided on both sides in the width direction B of the mounting rod member 105 is penetrated by the side plate 125 a of the operated member 125. A base portion of an operation plate 124 as a switching mechanism for switching the stopper 100 between the receiving posture J1 and the locking posture K1 is integrally assembled to the second shaft body 123. The operation plate 124 has a shaft body 124a provided at the front end thereof along the width direction B and is slidably inserted into curved long holes 110a and 111a formed in the side walls 110 and 111. The operated member 125 is urged between the operated member 125 and the reinforcing rod member 13 in the receiving posture J1 of the first switching shelf 4 in a direction in which the operated member 125 is pressed against the operating portion 121b of the operating member 121 (the stopper 100 is A tension spring 129 (which is biased around the second shaft body 123 in the direction of the locking posture K1) is interposed.

  When the first switching shelf 4A is switched from the receiving posture J1 to the transporting posture J2 as described above, the operating portion 121b of the operating member 121 is moved down along with the operation, and has been placed on the operating member 121 until then. The operated member 125 is rotated downward around the second shaft body 123 by the elasticity of the tension spring 129, and the operated member 125 is integrated with the second shaft body 123. The operation plate 124 integrated with the second shaft body 123 is switched from the tilted posture M1 tilted to the upstream side in the transport direction to the standing posture M2 standing on the downstream side in the transport direction. Due to the operation of the operation plate 124, the shaft body 124 a slides along the long holes 110 a and 111 a, and the stopper 100 protrudes into the conveyance path 35 from the unlocking posture K <b> 1 submerged in the conveyance path 35. Switching to the stop posture K2.

  The distribution shelf device 1 includes a detection roller 130 as a detection member that detects that the object 16 has arrived at a predetermined position on the first conveyance shelf 3A from the upstream side in the conveyance direction. A third shaft 131 is inserted so as to pass to the side plates 117 and 118 of the fixing bracket 115, and the detection roller 130 is a front view on the third shaft 131 protruding in the width direction B from the side plate 117. It is attached via an arm member 132 formed in the mold. The detection roller 130 is rotatably assembled to the arm member 132 via a shaft body 133. The detection roller 130 can be switched between a detection posture N1 protruding from the conveyance path 35 of the first conveyance shelf 3A and a conveyance permissible posture N2 which is pressed by the arrival of the transported object 16 and sinks into the conveyance surface of the conveyance path 35. It is said that.

  A stopper 135 is provided on the upstream side of the detection roller 130 in the transport direction, which is different from the stopper 100 that prevents the transported object 16 from moving downstream in the transport direction. The stopper 135 has the same configuration as the stopper 100. Similarly to the stopper 100, the stopper 135 protrudes into the conveyance path 35 of the first conveyance shelf 3A and engages with the article 16 to be conveyed, and the conveyance path. It is possible to switch to the unlocking posture K2 sinking on the transport surface 35.

  The detection roller 130 and the stopper 135 are connected by a link mechanism 136 that sets the stopper 135 in the detection posture N1 of the detection roller 130 to the locking release posture K2 and sets the stopper 135 to the locking posture K1 in the conveyance allowable posture N2 of the detection roller 130. Has been. Similarly to the stopper 100, the stopper 135 is connected to a fixing bracket 115a assembled to the mounting rod member 105a via a first shaft body 120a. Then, the operation plate 124A rotates around the second shaft 123a so that the stopper 135 can be switched between the locking posture K1 and the locking releasing posture K2.

  The link mechanism 136 is integrally assembled to the second shaft body 123a and the connecting arm 140, one end of which is assembled to the lower end portion of the arm member 132 via the shaft body 137 and extended to the upstream side in the transport direction. The second shaft body 123a and the other end side of the arm member 132 are rotatably connected via the shaft body 138, and are interposed between the mounting rod member 105 and the connecting arm 140. And a tension spring 142. In this case, the second shaft body 123a is rotatably supported by the brackets 122a on both sides in the width direction B attached to the attachment rod member 105a. The tension spring 142 has a function of holding the operation roller 124A in the tilting posture M1 while holding the detection roller 130 in the detection posture N1 by urging the connecting arm 140 toward the first switching shelf 4A. In other words, the tension spring 142 urges the arm member 132 as an operation member in a direction in which the detection roller 130 is rotated to the detection posture N1, and the operated member 141 and the stopper 135 are in the unlocking posture K2. Has a function of urging in the direction of rotation.

  In the above configuration, since the stopper 135 is in the unlocking posture K2 with the detection posture N1 of the detection roller 130 by the tension spring 142, the transported object 16 placed on the first transport shelf 3A is transported by its own weight. It is conveyed downstream in the direction and reaches the detection roller 130. When the transported object 17 has not yet reached the first switching shelf 4A, the first switching shelf 4A is in the receiving posture J1, so the stopper 100 is in the unlocking posture K2. In this state, when the detection roller 130 is pressed by the object to be conveyed 16 to change from the detection posture N1 to the conveyance allowable posture N2, the rotation operation around the third shaft body 131 of the detection roller 130 and the arm member 132 is performed via the connecting arm 140. Is transmitted to the operated member 141, and the operated member 141 rotates around the axis of the second shaft body 123a together with the second shaft body 123a, and the operation plate 124A together with the second shaft body 123a moves from the tilted posture M1 to the standing posture M2. Thus, the stopper 135 is switched from the locking release posture K2 to the locking posture. Therefore, the transported object 16 on the upstream side in the transport direction is stopped by being locked by the stopper 135 and being transported downstream, and stopped on the spot. When the downstream object 17 is placed on the first switching shelf 4A, the stopper 100 assumes the locking posture K1 by the operation as described above. By the way, when the transported object 17 is placed on the first switching shelf 4A, there is nothing to press the detection roller 130, so that the detection roller 130 is again in the detection posture N1, and thereby the stopper 135 is in the unlocking posture K2. Therefore, the object to be conveyed 16 is conveyed downstream in the conveying direction. When the detection roller 130 is again pressed by the next object to be conveyed 16 to change from the detection posture N1 to the conveyance allowable posture N2, the stopper 135 becomes the locking posture K1. While the transported object 16 is being supplied to the first transport shelf 3A, the above operation is repeated.

  Thus, according to the embodiment of the present invention, the stopper 100 is connected by the first link mechanism 112 so that the posture of the stopper 100 is switched in accordance with the operation of the first switching shelf 4A. Yes. In the past, a detection device that detects the arrival of an object to be conveyed is provided at the stopper portion, and the posture of the stopper is switched by a device that is driven by an electrical signal from the detection device. We needed wiring equipment. However, since a mechanism that mechanically interlocks with the operation of the first switching shelf 4A is provided in order to switch the posture of the stopper 100, no special electrical wiring facility is required for the shelf device as in the prior art. Furthermore, since such an electrical wiring facility is not required, the work environment can be simplified, and a predetermined work can be performed simply by moving the physical distribution shelf device 1 to an arbitrary place in the factory, for example. . Furthermore, since the transport shelf includes the first transport shelf 3A, the second transport shelf 3B, and the third transport shelf 3C, it is possible to stock a plurality of transported objects 16, 17, and 18; Therefore, it is possible to effectively use the distribution space in the factory.

  The second switching shelf 4B has a receiving posture J1 in which the second switching frame 50 is turned up around the shelf support shaft 46 in order to receive the transported object 18 from the upstream second transport shelf 3B, and the transported object 18 When transported to the second switching frame 50, the second switching frame 50 moves downward and pivots around the shelf support shaft 46 due to the weight of the transported object 18 to transport the transported object 18 to the third transport shelf 3 </ b> C. It is possible to switch to the transport posture J2. The 2nd switching shelf 4B is for changing the conveyance direction of the to-be-conveyed object 18 conveyed from the 2nd conveyance shelf 3B toward the 3rd conveyance shelf 3C, and is attached to the 1st switching shelf 4A. Since it has a symmetric configuration only in different parts, detailed description is omitted.

  The second weight device 59 is attached to a lower portion on one side of the second switching frame 86 along the width direction B and rotates with the second switching frame 86, and one axial direction of the operating member 90. A second wire 91 connected to the side end portion via a connector 90a, a second pulley 93 attached to the upper portion of one reinforcing rod member 13 via an attachment member 99, and the second pulley 93 are wound. A weight exterior fixed along the first reinforcing rod member 13 through a joint in the middle of the hook-shaped second weight 94 and one reinforcing rod member 13 connected to the tip of the second wire 91 that is hung. The member 95 is comprised.

The cylinder side base end portion of the second gas damper 88 is attached to the center of the width direction B of the width direction crosspiece member 12 passed along the width direction B between the one leg members 5 and 7 below the second switching frame 86. The mounting member 92 is rotatably attached via a shaft body 95a. The rod side tip of the second gas damper 88 is attached to the operating member 90 via a bracket 96 and is rotatably attached to the shaft body 95b.
The second weight device 59 and the second gas damper 88 have a function of operating the second switching shelf 4B, and the operations thereof are the same as those of the first weight device 57 and the first gas damper 58, and thus detailed description thereof is omitted. To do. Reference numeral 150 denotes a second shock absorber, and the second shock absorber 150 has a function of buffering the object to be transported 18 on the second switching shelf 4B, and its movement is the same as that of the first shock absorber 75. Therefore, detailed description of the configuration and operation is omitted.

  In addition to the detection roller 130, the stopper 100, and the stopper 135, another detection roller 151 is provided on the third transport shelf 3 </ b> C further downstream of the detection roller 130. Then, a mechanism 152 is provided in which the stopper 100 is set in the locking posture K1 in the conveyance allowable posture N2 of the detection roller 151, and the stopper 100 is set in the locking release posture K2 in the detection posture N1 of the detection roller 151. When an operator takes out the object to be transported 18 that has been transported to the third transport shelf 3C from the box and performs a predetermined operation, the empty box 18A is transported to one side when the empty box 18A is placed on the fourth transport body 3D. And recovered.

  In the above-described embodiment, the first transport shelf 3A, the second transport shelf 3B, the third transport shelf 3C, and the fourth transport shelf 3D are set in the direction in which the transport direction is reversed left and right in order and in the opposite inclination. The shelf layout was designed to make effective use of the work space. However, the embodiment of the present invention is not limited to such a configuration. If there is no problem in terms of space, a plurality of transport shelves can be arranged in the same direction. In this case, a switching shelf is provided between the transport shelves, and the switching shelf is configured to be switched between a receiving posture along the transporting direction of the transporting shelf and a transporting posture rotated around a vertical axis, for example. It is also possible to take out from the switching shelf. Furthermore, in the above-described embodiment, the transported object is transported on the roller in its transport direction by its own weight. However, in some cases, the transported object may be transported downstream by a driving roller. In any case, in the present invention, any configuration may be used as long as the stopper is in the locking posture in the receiving position of the switching shelf and the both are connected by the link mechanism so that the stopper is in the locking releasing posture in the transporting posture of the switching shelf.

The side view which shows the whole structure of the distribution shelf apparatus which shows embodiment of this invention. The partially broken perspective view of the shelf apparatus for distribution similarly. The expanded partially broken side view which similarly shows a part of shelf apparatus for distribution. The enlarged partially broken side view from the opposite side. Similarly, the operation | movement figure which shows operation | movement of the 1st shock absorber accompanying the change of the attitude | position of a 1st conveyance shelf.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Distribution | distribution shelf apparatus, 2 ... Shelf apparatus main body, 3 ... Conveyance shelf, 3A ... First conveyance shelf, 4 ... Switching shelf, 4A ... First switching shelf, 16 ... Conveyed object, 17 ... Conveyed object, 20 ... 1st rail member, 21 ... 2nd rail member, 22 ... 3rd rail member, 30, 31, 32 ... guide roller, 47 ... 1st switching frame, 55 ... 1st switching device, 57 ... 1st weight apparatus, 58 ... first gas damper, 61 ... mounting member, 75 ... first shock absorber, 76 ... rotating arm member, 77 ... buffer shaft member, 100 ... stopper, 112 ... first link mechanism, 121 ... operating member, 124A ... Operation plate 130 ... Detection roller 135 ... Stopper 141 ... Operated member

Claims (2)

The transfer shelf main body is provided with a switching shelf for transferring the object to be transferred, which is transferred from the transfer shelf on the upstream side in the transfer direction, to the transfer shelf arranged on the downstream side in the transfer direction. Can be switched between an accepting posture for receiving the transport from the upstream transport shelf and a transport posture for transporting the object to be transported to the downstream transport shelf, protruding into the transport path of the upstream transport shelf and locked to the object to be transported A stopper is provided that can be switched between a locking posture to be engaged and a locking release posture that has been sunk in the conveyance surface of the conveyance path and prevents movement of the conveyed object to the downstream side. Is provided with a link mechanism for setting the stopper to the locking posture in the transfer shelf of the switching shelf ,
The switching shelf is provided on the transport shelf main body so as to be rotatable via a shelf support shaft so as to be switched between a receiving posture and a transporting posture, and the stopper is provided so as to be rotatable around a shaft body on the transport shelf side. The link mechanism is provided on the switching shelf side and rotates about the shelf support shaft together with the switching shelf, and provided on the stopper side and the operation member. And an operated member for switching the stopper between a locking posture and a locking releasing posture by rotating around the shaft body in accordance with the rotating operation of the rotating member. A shelf device for physical distribution is provided with a spring that biases the shaft body in the direction to be moved . A weight for applying a load is connected to the switching shelf so that the switching shelf is placed in a receiving posture around the shelf support shaft, and the weight is loaded when the object to be transported is transported and placed on the switching shelf in the receiving posture. distribution shelf device according to claim 1, wherein the shelf switched by weight of the conveyed object is characterized in that it is set to the weight to rotate the conveyance posture.

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