JP2006103483A - Suspending conveyor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify a support structure of a position-switchable receiving unit provided on a hanger arm for supporting an article to be conveyed and a constitution of a position-switching means. <P>SOLUTION: The suspending conveyor device has a long hole 31 formed at a pivot support of a parallel link 24 for laterally movably supporting a receiving unit 18 and permitting the upward movement of the receiving unit 18; spring materials 28a, 28b for pulling down the receiving unit 18; and internal and external two engagement recessions 32a, 32b engaged with an engagement member 33 when the receiving unit 18 is positioned at both inner and outer positions P1, P2 and positioned at a level supported by a receiving unit support member 21b. At least the inner engagement recession 32a and the engagement member 33 have shapes for suppressing the movement of the receiving unit 18 to the inner position P1. A pusher 41 for releasing the fitting of the internal engagement recession 32a and the engagement member 33 by pushing up the receiving unit 18 and a groove-like member 42 for laterally moving the receiving unit 18 to the inner position P1 are arranged at a receiving unit switching position where the receiving unit 18 is switched from the outer position P2 to the inner position P1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  In the present invention, a hanger for supporting an object to be conveyed suspended from a traveling body for conveyance has a pair of left and right openable / closably provided with a receiver for the object to be conveyed inside the lower end and pivoted on the upper end side so as to be swingable left and right. The present invention relates to a suspended conveying device provided with a hanger arm.

As described in Patent Document 1, the suspension conveyance device as described above responds to a change in the interval between the supported positions (positions supported by the support) on the left and right sides of the object to be handled. In order to be able to do so, it is known that each of the receivers is configured to be switchable between both positions in the opening and closing direction with respect to the hanger arm. Specifically, the receiver is supported by a receiver support member on the hanger arm side so as to be able to move linearly via a slide guide rail so that the receiver can move laterally between the inner and outer positions in the opening and closing direction. A lock pin that can be moved up and down and a spring that urges the lock pin in the downward direction are provided, and a locking recess that allows the lock pin to be lowered and fitted by the urging force of the spring is provided on the receiving member support member side. Lock pin slide guides provided at both ends are provided, and the lock pin fitted in the engaging recess is pushed up to the receiver switching position set in the travel path of the transport traveling body to lock the receiver. The lock pin push-up means for releasing the holder and the receiver driving means for laterally moving the receiver in the position switching direction are provided.
JP-A-4-153118

  In the conventional configuration described in Patent Document 1, the position of the receiving device is not determined unless the receiving device is locked by the lock pin at both the inside and outside positions in the opening and closing direction. It is indispensable that the lock pin is pushed up and unlocked at both the position where the position is switched and the place where the receptacle is switched from the outer position to the inner position. In addition to the need for a slide guide rail that movably supports the receiver between both internal and external positions, it also requires a lock pin that can be raised and lowered and a lock pin slide guide that guides it. There was a problem that the size of the entire receiving part was increased.

  An object of the present invention is to provide a suspending and conveying apparatus that can solve the conventional problems as described above. When the means is shown with reference numerals of embodiments to be described later, it is conveyed. A pair of left and right openable / hangable hangers, each of which is provided with a support 18 for a transported object W on the inner side of the lower end of the hanger 14 hung on the traveling body 1 and whose upper end side is pivotally supported so as to be swingable in the left-right direction. In the suspended transfer device including the arm 16 and configured so that the positions of the both receiving members 18 can be switched between the inner position P1 and the outer position P2 in the opening / closing direction with respect to the hanger arm 16, the receiving member 18 includes: The support members 21a and 21b on the hanger arm 16 side are supported by the parallel links 23 and 24 so as to be laterally movable between the inner and outer positions P1 and P2, and the support portions of the parallel links 23 and 24 include the receiver. 8 is provided with a long hole 31 that allows upward movement, and a spring material (tensile springs 28a and 28b are provided for pulling down the receiver 18 onto the receiver support members 21a and 21b. A locking member 33 is provided on the side of the members 21a and 21b. On the side of the receiver 18, the receiver 18 is at both the inner and outer positions P1 and P2 and is supported by the receiver support members 21a and 21b. Two engaging recesses 32a and 32b that fit into the locking member 33 when in the level are provided, and the receiving member 18 is at least at the outer position P2 of both the engaging recesses 32a and 32b. The inner engagement recess 32a and the engagement member 33 that are sometimes fitted to the engagement member 33 are shaped to prevent the movement of the carrier 18 to the inner position P1. At least in the receiving device switching position where the receiving device 18 is switched from the outer position P2 to the inner position P1, the receiving device 18 is pushed up from the level supported by the receiving device support members 21a and 21b and the inner engagement is performed. A receiver push-up means (pusher 41) for releasing the fitting between the recess 32a and the locking member 33 and a receiver drive means (channel member 42) for laterally moving the receiver 18 to the inner position P1 are disposed. It has been configured.

  In carrying out the present invention having the above-described configuration, as described in claim 2, when the receiving member 18 is located at the inner position P1 in the engagement recesses 32a and 32b, the engagement member 33 is fitted. The mating outer engaging recess 32b and the locking member 33 can be shaped so that the receiving member 18 can ride on and pass through the locking member 33 when the receiving member 18 moves to the outer position P2.

  Further, according to a third aspect of the present invention, a pair of the receiver support members 21a and 21b are arranged side by side, and the receiver 18 supported on the receiver support members 21a and 21b includes a pair of the receivers. Link shaft support members 22a and 22b that are loosely fitted between the support members 21a and 21b are projected, and the parallel links 23 and 24 are lower support shafts 26a installed between the pair of support member support members 21a and 21b. , 26b and upper support shafts 27a, 27b provided on the link shaft support members 22a, 22b, and the long holes 31 of the shaft support portions of the parallel links 23, 24 are formed on the parallel links 23, 24. The upper support shafts 27a and 27b are provided as shaft holes through which the inner and outer engagement recesses 32a and 32b are formed at the lower side of the link shaft support members 22a and 22b, and the locking member 33 is a pair of the above-mentioned Supporter support member It is constructed between 1a and 21b, and the receiver pushing-up means (pusher 41) can be configured to push up the lower sides of the link shaft supporting members 22a and 22b between the pair of receiver support members 21a and 21b. .

  In this case, as described in claim 4, the spring material is a tension spring interposed between the lower support shafts 26a and 26b and the upper support shafts 27a and 27b that support the parallel links 23 and 24. 28a and 28b. Further, as described in claim 5, a pair of the link shaft supporting members 22a, 22b and the parallel links 23, 24 are arranged in parallel, and the tension springs 28a, 28b are a pair of the link shaft supporting members 22a. , 22b.

  According to the suspending and conveying apparatus of the present invention having the above-described configuration, the receiving member is automatically positioned by fitting the engaging recess and the locking member at both the inside and outside positions. It is not necessary to be a movable member such as a conventional lock pin that can be raised and lowered, and it may be fixed to the support member supporting member side, so that the support structure is supported by a parallel link, and Coupled with the fact that the lock pin slide guide for guiding the lock pin is unnecessary, the structure of the entire receiving portion is very simple and can be made compact.

  In addition, the state in which the receiver is positioned by fitting the engaging recess and the locking member at both the inner and outer positions can be held by the urging force of the spring material pulled down to the receiver supporting member side. The means for locking the receiving device at both the inner and outer positions is unnecessary, but when the receiving device is at the outer position, when the hanger arm is moved outward to unload the object to be transferred, the receiving device Since the direction of movement to the inner position is obliquely up and down, and gravity acts in a direction that promotes movement of the receiver to the inner position, the engagement recesses resists the biasing force of the spring material due to reaction or the like. It is considered that there is a possibility that the catcher gets on the locking member and disengages, and the catcher unexpectedly laterally moves to the inner position and the position is switched, but when the catcher is at least in the outer position, it is engaged. The recess and the locking member are inside the receptacle Since the movement of the location can be reliably prevented, receptacle reliably is retained in the outer position can be enhanced safety.

  In addition, when switching the receiving device at the outer position to the inner position, it is only necessary to push up the receiving device so that the engaging recess is detached upward from the locking member. Compared with the case where the small lock pin protruding to the upper side has to be pushed up, the structure of the pushing-up means installed on the traveling path side of the conveying traveling body is simplified.

  In addition, according to the structure of Claim 2, when switching the receiving tool in an inner side position to an outer side position, it is not necessary to push up a receiving tool and to cancel fitting with an engaging recessed part and a locking member, Since it is only necessary to forcibly move the receptacle directly to the outside position, the receptacle switching position set in the travel path of the transport traveling body is changed to the receptacle switching position for switching the receptacle at the inner position to the outside position. The configuration can be simplified and the cost can be reduced by omitting the installation of the lock release means, that is, the receiver push-up means. In addition, when moving the receiving tool from the inner position to the outer position, the engaging recess must be lifted from the locking member against the biasing force of the spring material, so that the resistance at that time is sufficient. It is possible to eliminate the risk that the receiving tool may unexpectedly move from the inner position to the outer position due to vibration or the like.

  Moreover, according to the structure of Claim 3, not only the receptacle inside the hanger arm lower end inside but the whole support structure can be comprised very compactly, the receptacle arrange | positioned by the conveyance path | route side. The push-up means can also be configured compactly. In this case, according to the structure of Claim 4, the support structure of the receiver inside a hanger arm lower end becomes still easier. Furthermore, according to the structure of Claim 5, stability of a receiving device can be improved.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a transport traveling body, which is a pair of front and rear load trolleys 3 supported by a trolley guide rail 2. 4. A load bar 5 suspended by both the load trolleys 3 and 4 and a front free trolley connected to the load trolleys 3 and 4 via connecting rods 6 and 7 and supported by the trolley guide rail 2 8 and rear free trolley 9. The transporting traveling body 1 is driven by a driving chain 11 that is suspended by a driving chain guide rail 10 installed on the upper side of the trolley guide rail 2 via the trolley and driven by driving means (not shown). The pusher 12 provided is performed by pushing the retractable main dog 13 provided in the front free trolley 8.

  A transporting object supporting hanger 14 is suspended from the load bar 5 in the transporting traveling body 1. The hanger 14 is composed of a pair of left and right hanger arms 15 on the front side and a pair of hanger arms 16 on the rear side. The left and right ends of the left and right members 5a and 5b provided in series are pivotally supported by the front and rear horizontal support shafts 17 so that they can be opened and closed in the left and right directions. A support 18 for supporting is provided.

  In the hanger 14 in this embodiment, the pair of rear left and right hanger arms 16 are divided into an arm upper portion 16 a and an arm lower portion 16 b provided with a receiving tool 18, and the arm upper portion 16 a is pivotally supported by the support shaft 17. In addition, the upper part of the pair of front left and right hanger arms 15 and the pair of left and right front and rear direction connecting members 19a and 19b are connected and integrated, respectively, and the arm lower part 16b is positioned in the front and rear direction within the range L with respect to the connecting members 19a and 19b. Supported to change. Accordingly, by changing the position in the front-rear direction of the arm lower portion 16b of the pair of rear left and right hanger arms 16, the receiver 18 of the pair of front left and right hanger arms 15 and the receiver 18 of the pair of rear left and right hanger arms 16 are provided. The front-rear direction interval can be changed according to the type of the object to be conveyed W or the like. Further, the opening operation levers 20a and 20b provided on the pair of left and right front and rear connecting members 19a are pushed upward by the operating means disposed on the side of the travel path, thereby the front left and right hanger arms 15 and the rear left and right. A pair of hanger arms 16 can be moved together.

  Moreover, in the hanger 14 in this embodiment, the receptacle 18 of the rear left and right pair of hanger arms 16 is configured to be capable of changing the position in the opening / closing direction (horizontal direction) of the hanger arm 16. In the following description of the detailed structure and operation, the receiver 18 of the pair of left and right hanger arms 16 on the rear side is referred to as a position switching target receiver 18.

  As shown in FIG. 3 to FIG. 5, a receiver support arm portion 16 a extending inward is provided at the lower ends of the pair of rear left and right hanger arms 16, and the distal end portion of the receiver support arm portion 16 a A pair of supporter support members 21a and 21b projecting inward are arranged side by side. The position switching object receiver 18 is provided with a transported object support attachment 18b on an upper side of a substrate 18a supported so as to be movable in a hanger arm opening / closing direction on the receiver support members 21a and 21b. A pair of link shaft support members 22a and 22b that are loosely fitted between the receiver support members 21a and 21b in parallel with the receiver support members 21a and 21b project from the lower side, and this link shaft support member 22a. 22b and the support member 21a, 21b are connected by two sets of parallel links 23, 24 arranged in parallel between the pair of link shaft support members 22a, 22b.

  The lower ends of the pair of parallel links 25a and 25b constituting each parallel link 23 and 24 are supported by lower support shafts 26a and 26b installed between the pair of supporter support members 21a and 21b. The upper end of 25b is supported by upper support shafts 27a and 27b installed between the pair of link shaft support members 22a and 22b. Accordingly, the position switching target receptacle 18 can move in parallel between the inner position P1 and the outer position P2 in the hanger arm opening / closing direction with the parallel swing motion of the two sets of parallel links 23, 24. At the time of parallel movement between the inner position P1 and the outer position P2, the substrate 18a of the position switching target receiver 18 floats from the pair of receiver support members 21a and 21b, but the inner position P1 and the outer position P2 at both ends Is supported by a pair of receiver support members 21a and 21b.

  Between the pair of link shaft support members 22a and 22b on the position switching target receiver 18 side and the pair of receiver support members 21a and 21b on the hanger arm 16 side, the position switching target receiver 18 is supported on the receiving tool support member 21a. , 21b, two pairs of tension springs 28a, 28b are interposed as spring materials. The tension springs 28a and 28b are formed by bending a spring wire into an S-shape, and the arc portions 29 and 30 at both ends are connected to the link shaft support members 22a and 22b side between the pair of link shaft support members 22a and 22b. The upper support shafts 27a, 27b and the lower support shafts 26a, 26b on the support member supporting members 21a, 21b side are fitted on the outer support shafts. The initial lengths of the tension springs 28a and 28b are set so that they are slightly stretched by the deformation against the elasticity of 30 and a tensile force acts between the upper support shafts 27a and 27b and the lower support shafts 26a and 26b. Has been.

  In this embodiment, two tension springs 28a and 28b are interposed between the upper support shafts 27a and 27b and the lower support shafts 26a and 26b, respectively, in order to obtain a required tensile force. However, depending on the design of the tension springs 28a and 28b, one tension spring 28a and 28b can be interposed between the upper support shafts 27a and 27b and the lower support shafts 26a and 26b, respectively. In some cases, it is possible to interpose only one or two tension springs 28a (or 28b) in parallel between the upper support shaft 27a (or 27b) and the lower support shaft 26a (or 26b). It is. In addition to the upper support shafts 27a and 27b and the lower support shafts 26a and 26b that support the parallel links, a pair of link shaft support members 22a and 22b on the support 18 side and a pair of support devices on the hanger arm 16 side. It is also possible to provide spring support portions on the support members 21a and 21b, and to insert a tension spring between the spring stop portions. Of course, it is also possible to use general coil springs or leaf springs other than the tension springs 28a and 28b configured as described above as the spring material.

  As shown in FIG. 11, in the shaft hole provided to allow the upper support shafts 27a and 27b to pass through the upper ends of the links 25a and 25b of the parallel links 23 and 24, the position switching target receiver 18 is located at the outer position P2 (FIG. 11). 8), the long holes 31 extend vertically upward from the upper support shafts 27a and 27b. Accordingly, the position switching target receiver 18 at the inner position P1 (see FIG. 7) or the outer position P2 (see FIG. 8) at a level at which the substrate 18a is supported by the pair of receiver support members 21a and 21b. The long hole 31 can move up in the length direction of the long hole 31 against the tensile force of the tension springs 28a and 28b.

  At the middle position of the parallel links 23 and 24 on the lower side of the pair of link shaft support members 22a and 22b on the position switching object receiver 18 side, there are two places in the lower side length direction (two places inside and outside in the hanger arm opening / closing direction). Engaging recesses 32a and 32b are provided. On the other hand, between the pair of receiver support members 21a and 21b on the hanger arm 16 side, when the position switching target receiver 18 is at the outer position P2 (see FIG. 8), the inner engagement recess 32a is fitted. When the position switching target receiver 18 is at the inner position P1 (see FIG. 7), a locking member 33 that fits into the outer engagement recess 32b is installed. This locking member 33 is made of a round bar material whose both ends are fixed to the pair of support member support members 21a and 21b by welding or the like at an intermediate position between the parallel links 23 and 24, and the vertical locking surface 34 has a round shape. It is formed by cutting the peripheral surface of the bar. The vertical locking surface 34 of the locking member 33 has the inner engagement recess 32a when the position switching target receiver 18 is at the outer position P2 and the locking member 33 is fitted in the inner engagement recess 32a. The position switching object receiver 18 is prevented from moving toward the inner position P1 by abutting against the inner vertical surface on one side. Further, when the position switching target receptacle 18 at the inner position P1 shown in FIG. 7 moves toward the outer position P2, the position switching target is set with respect to the locking member 33 fitted in the outer engagement recess 32b. The receiver 18 (the lower sides of the pair of link shaft support members 22a and 22b) rides on and engages using the downwardly inclined side surface of one side of the outer engagement recess 32b and the round bar circumferential surface of the locking member 33. The outer engagement recess 32b is not fitted to the member 33. At this time, the position switching target receiver 18 (the lower sides of the pair of link shaft support members 22a and 22b) rides on the locking member 33 in parallel with the upward movement of the upper support shafts 27a and 27b in the long hole 31. This is performed with the upward movement of the position switching target receiver 18 (the pair of link shaft support members 22a and 22b) accompanying the swinging up of the links 23 and 24.

  As is apparent from the above configuration, as shown in FIG. 7, the position switching target receptacle 18 at the inner position P1 has the outer engagement recess 32b fitted into the locking member 33 by the tensile force of the tension springs 28a and 28b. Since it is only held at the inner position P1 by doing so, the position switching target receptacle 18 can be forcibly moved toward the outer position P2 with an operation force of a certain level or more. As shown in FIG. 8, the position switching target receptacle 18 at the outer position P2 is held at the outer position P2 when the inner engagement recess 32a is fitted to the locking member 33 by the tensile force of the tension springs 28a and 28b. At the same time, the movement to the inner position P1 is completely prevented by the contact between the inner vertical surface on one side of the inner engagement recess 32a and the vertical locking surface 34 of the locking member 33. That is, the position switching target receiver 18 is locked at the outer position P2, and the position switching target receiver 18 cannot be forcibly moved to the inner position P1 as it is.

  As shown in FIG. 3 to FIG. 6, the receiver push-up means 35 </ b> A, 35 </ b> B and the receiver drive means 36 </ b> A, 36 </ b> B are disposed at the receiver switching position set in the travel route of the transport traveling body 1. ing. The receiver push-up means 35A and 35B and the receiver drive means 36A and 36B are a pair of left and right rear sides of the hanger 14 for supporting the object to be transported when the transport traveling body 1 stops at a predetermined position. The hanger arm 16 is provided with a pair of left and right sides corresponding to each of the receivers 18, that is, the position switching target receivers 18. However, as described above, the rear side provided with the position switching target receivers 18. Since the pair of left and right hanger arms 16 can be repositioned within the range L, the receiver push-up means 35A, 35B are the pair of rear left and right hanger arms when the transporting traveling body 1 stops at a predetermined position. Corresponding to the 16 current positions, the positions are automatically adjusted before and after the traveling direction of the transport traveling body 1.

  That is, the receiver push-up means 35A, 35B corresponds to the current position of the pair of left and right hanger arms 16 on the rear side when the transport traveling body 1 stops at a predetermined position, and that position is the travel of the transport traveling body 1. Attached separately to a pair of left and right movable members 37a and 37b that are automatically adjusted in conjunction with the front and rear directions, and are supported by the inner ends of the movable members 37a and 37b via a lifting guide rod 38 so as to be movable up and down, and fluid As shown in FIG. 8, the position switching target receiver 18 includes a lifting support arm 40 that is driven up and down within a certain range by a pressure cylinder 39 and a pusher 41 attached to the upper end of the lifting support arm 40. When the transport traveling body 1 held at the outer position P2 stops at a predetermined position, the pusher 41 is connected to the parallel links 23, 24 as shown in FIGS. The pusher 41 is positioned between the inner link 25a and the locking member 33. In this state, the lifting / lowering support arm 40 is lifted by the fluid pressure cylinder 39, so that the pusher 41 moves between the pair of left and right support members 21a and 21b. As shown in FIG. 9, the position switching target receiving tool 18 can be pushed up via a pair of left and right link shaft supporting members 22a and 22b.

  The receiver driving means 36A and 36B are provided at the lower end of the hanger arm 16 regardless of the current position of the pair of rear left and right hanger arms 16 within the range L when the transporting traveling body 1 stops at a predetermined position. A groove-shaped member 42 having a lower open side that is the same length as the range L and that can be fitted to a transported object supporting attachment 18b in the inner position switching target receiver 18 is provided. A pair of left and right movable members 43 that individually support the groove-shaped members 42 at the outer end portions are slid guides on a horizontal platform 44 disposed below the movement path of the hanger 14 for supporting the object to be conveyed. A rail 45 and a slider 46 fitted to the rail 45 are supported so as to be laterally movable in the lateral direction (the opening and closing direction of the hanger arm 16), and are interposed between the gantry 44 and each channel member 42. Reciprocally driven by a pair of left and right fluid pressure cylinders 47.

  In the transport apparatus having the above-described configuration, when the transport traveling body 1 in which the position switching target receiver 18 is held at the outer position P2 arrives at the receiver switching position, the transport travel body 1 with respect to the receiver switching position. By adjusting the position of the movable members 37a and 37b before arrival or after arrival, as shown in FIGS. 8 and 10, the receiver push-up means 35A and 35B positioned at a predetermined position just below the position switching target receiver 18 are changed. Operate. That is, as shown in FIG. 9, the pusher 41 entering from the lower side between the pair of left and right receiver support members 21 a and 21 b is moved up by the fluid pressure cylinder 39 to raise and lower the support arm 40. The position switching target receptacle 18 is pushed up through the materials 22a and 22b. As a result, as shown in FIG. 9, as shown in FIG. 9, the link shaft support portion is engaged with the locking member 33 fitted in the inner engagement recess 32a on the lower side of the pair of left and right link shaft support members 22a and 22b. The members 22a and 22b are pushed up within the length of the long hole 31, the inner engagement recess 32a is released upward from the locking member 33, and the lock of the position switching target receiver 18 at the outer position P2 is released. Is done.

  On the other hand, when the transport traveling body 1 arrives at the receiver switching position, the position switching target receiver 18 is located on the inner side regardless of the position of the rear left and right hanger arms 16 within the adjustment range L. Regardless of the position P1 or the outer position P2, as shown in FIG. 7 or FIG. 9, the position switching target receiver 18 is in the lower open state waiting at the home position of the receiver driving means 36A, 36B. The groove member 42 enters the state. Accordingly, as described above, after the lock of the position switching target receiver 18 at the outer position P2 is released by the receiver push-up means 35A, 35B, the fluid pressure cylinder 47 of the receiver drive means 36A, 36B is actuated, and FIG. As indicated by the phantom line, the position change of the unlocked position at the outer position P2 is performed by laterally moving the groove-shaped member 42 from the home position to the inner side (the center position side in the left-right width direction of the transport path). The target receiver 18 can be moved to the inner position P1 via the transported object support attachment 18b.

  After the pusher 41 of the receiver push-up means 35A, 35B that has pushed up the position change target receiver 18 for unlocking has moved so that the inner engagement recess 32a is separated from the position directly above the locking member 33 inward. The position switching target receiver 18 may be lowered immediately before reaching the inner position P1. As a result, when the position switching target receiver 18 reaches the inner position P1, the position switching target receiver 18 is pulled down by the tensile force of the tension springs 28a and 28b as shown in FIG. The outer engagement concave portion 32b is fitted to the member 33, and the position switching target receiver 18 is held at the inner position P1.

  As described above, the position switching target receiver 18 locked at the outer position P2 is unlocked by the receiver push-up means 35A and 35B and moved to the inner position P1 by the receiver drive means 36A and 36B. Although the position of the position switching target receiver 18 can be switched, as shown in FIG. 7, when the position switching target receiver 18 held at the inner position P1 is switched to the outer position P2. The groove-shaped member 42 of the receiver driving means 36A, 36B may be immediately moved outward from the home position without operating the receiver push-up means 35A, 35B. In this case, as described above, the position switching target receiver 18 is forcibly moved inward by the lateral movement of the channel-shaped member 42 via the transported object support attachment 18b fitted to the channel-shaped member 42. When being moved from the position P1 toward the outer position P2, the outer engaging recess 32b gets over the locking member 33 with the upward movement of the position switching target receiver 18 against the tensile force of the tension springs 28a and 28b. To move outward. When the position switching target receiver 18 reaches the outer position P2, as shown in FIG. 8, the position switching target receiver 18 is pulled down by the tensile force of the tension springs 28a and 28b, and the inner engagement recess 32a is engaged. The position switching object receiver 18 fitted to the stopper member 33 and supported by the receiver support members 21a and 21b is engaged with the locking member 33 (vertical locking surface 34) and the inner engagement recess 32a. And locked by.

  In addition, the thing provided with the rear left-right paired hanger arm 16 comprised so that a position change was possible in order to adjust the space | interval between the front-side left-right paired hanger arm 15 as the to-be-conveyed object support hanger 14 was illustrated. However, the transported object support hanger 14 in which the distance between the front and rear hanger arms 15 and 16 is fixed may be used. Moreover, although the conveyed object support hanger 14 provided with two sets of front and rear hanger arms 15 and 16 was illustrated, the conveyed object support hanger provided with a pair of left and right hanger arms and a front receiving tool and a rear receiving tool. It may be. Furthermore, the rear left and right pair of receivers 18 out of a total of four receivers 18 in total of two pairs of left and right pairs are configured to be switchable between both inner and outer positions in the hanger arm opening / closing direction. It can also be configured such that the position can be switched.

  Further, although an example has been described in which the receiver push-up means 35A and 35B and the receiver drive means 36A and 36B are disposed at the receiver switching position set in the travel route of the transport traveling body 1, When there is a receiver switching position in which only the action of switching the position switching target receiver 18 from the inner position P1 to the outer position P2 is present, the receiver push-up means 35A and 35B are not required at the receiver switching position. It is. However, the position-switching object holder 18 held at the inner position P1 is moved to the outer position P2 in the same manner as the relationship between the inner engagement recess 32a and the locking member 33. The long hole 31 is configured to prevent the movement, and also extends in the upward direction with respect to the upper support shafts 27a and 27b when the position switching target receiver 18 is held at the inner position P1. When the position switching target receiver 18 is configured to be locked even at the inner position P1 by configuring it in a shape that forms a fan shape (there is a sector shape), the receiver push-up means 35A, 35B is provided at any receiver switching position. Necessary.

It is a side view which shows the traveling body for conveyance provided with the to-be-conveyed object support hanger. It is a front view of the traveling body for conveyance. It is a top view which shows the receiver drive means and receiver in a receiver switching position. It is a top view which shows the receiver pushing up means and receiver in a receiver switching position. It is a rear view which shows the receiver drive means of one side in a receiver switching position, a receiver push-up means, and a receiver. It is the partial longitudinal section side view which looked at the receiving device drive means, receiving device pushing-up means, and receiving device in the receiving device switching position from the inside. It is a vertical front view of the principal part which shows the receiver hold | maintained in the inner side position, a receiver drive means, and a receiver push-up means. It is a vertical front view of the principal part which shows the state which was moved to the outer side position by the receiver drive means shown in FIG. It is a vertical front view of the principal part which shows the state which pushed up the receiving device in an outer side position by the receiving device pushing-up means. It is a vertical side view of FIG. 7 or FIG. It is a partially exploded longitudinal sectional side view showing details of the support structure. It is a vertical side view in the locking member position of a receiver support structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyance body 14 Conveyance object support hanger 15 Front left-right pair of hanger arm 16 Rear left-right pair of hanger arm 18 Receiver 21a, 21b A pair of receiver support member 22a, 22b A pair of link axial support member 23, 24 Two sets of parallel links 25a, 25b Links 26a, 26b Lower support shafts 27a, 27b Upper support shafts 28a, 28b Tensile spring 31 Long holes 32a, 32b Inner and outer two engagement recesses 33 Locking member 34 Vertical locking surface 35A , 35B Receiver push-up means 36A, 36B Receiver drive means 37a, 37b A pair of left and right movable members 38 Lifting guide rod 39 Fluid pressure cylinder 40 Lifting support arm 41 Pusher 42 Channel member 43 open on the lower side Pair of left and right movable members 45 Slide guide rail 46 Slider 47 A pair of left and right fluid pressure cylinders P1 Outer position W transported object of 置切 conversion target receptacle inner position P2 position switching target receptacle

Claims (5)

  A hanger for supporting a transported object suspended from a traveling body for transport includes a pair of left and right freely openable / hangable hanger arms provided with a receiver for the transported object on the inner side of the lower end and pivoted on the upper end side so as to be swingable left and right. In the hanging transport device in which both the receivers are configured to be switchable between an inner position and an outer position in the opening / closing direction with respect to the hanger arm, the receiver is attached to the receiver support member on the hanger arm side. A parallel link is supported so as to be laterally movable between the inner and outer positions, and a shaft support portion of the parallel link is provided with a long hole that allows the receiver to move upward, and the receiver is mounted on the receiver support member. A spring member acting in a pulling-down direction is provided, a locking member is provided on the receiving member supporting member side, and the receiving member side has the receiving member at both inner and outer positions and the receiving member supporting member. Supported by Two engaging recesses are provided that fit into the locking member when the level is at the level, and when the receiving member is at least in the outer position, the engaging recess fits into the engaging member. The inner engaging recess and the locking member are configured to prevent movement of the receiver to the inner position, and switch at least the receiver from the outer position to the inner position in the travel path of the transport traveling body. At the receiver switching position, a receiver push-up means for lifting the receiver from a level supported by the receiver support member to release the fitting between the inner engagement recess and the locking member; and the receiver A suspended conveying device provided with a receiver driving means for laterally moving to an inner position.   Out of the two engaging recesses, the outer engaging recess and the locking member that are fitted to the locking member when the receiving member is in the inner position are used when the receiving member moves to the outer position. The suspended conveying device according to claim 1, wherein the receiving member is shaped to be able to ride on and pass through the locking member.   A pair of the support member support members are arranged side by side, and the support member supported on the support member support member is provided with a link support member that is loosely fitted between the pair of support member support members. The link is interposed between a lower support shaft provided between the pair of support member supporting members and an upper support shaft provided on the link support member, and the long hole of the support portion of the parallel link is , Provided as a shaft hole through which the upper support shaft of the parallel link passes, the inner and outer two engaging recesses are formed on the lower side of the link shaft support member, and the locking member is located between the pair of support members. The suspension conveying device according to claim 1, wherein the receiving member push-up means pushes up a lower side of the link shaft support member between the pair of receiving member support members.   The suspension conveying device according to claim 3, wherein the spring material is a tension spring interposed between the lower support shaft and the upper support shaft that supports the parallel link.   The suspended conveying device according to claim 4, wherein a pair of the link shaft support member and the parallel link are provided side by side, and the tension spring is disposed between the pair of link shaft support members.