JP2010215209A - Door conveying facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door conveying facility utilized for transporting doors detached from a painted vehicle to an installation line, and attaching the finished doors to the left and right sides of the original vehicle body. <P>SOLUTION: Elevating/lowering devices 7A and 7B elevate and lower door hangers between a floor side door loading/unloading position L1 and an upper first door hanger transfer position L2 at which the door hangers 9R and 9L are transferred to/from auxiliary conveyers 8A and 8B, the auxiliary conveyers 8A and 8B convey the door hangers between the first door hanger transfer position L2 and a second door hanger transfer position L3, a first transfer means for transferring the door hangers between the elevating/lowering devices 7A and 7B and the auxiliary conveyers 8A and 8B is provided at the first door hanger transfer position L2, and a door conveying traveling body elevating/lowering device 76 for transferring the door hangers between the auxiliary conveyers 8A and 8B and door hanger supporting portions 48a and 48b of a door conveying traveling body 40 is provided at the second door hanger transfer position L3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a door transport facility for transporting doors removed from both left and right sides of a vehicle body.

  As this type of door transport equipment, a door transport line is provided above the floor-side vehicle body transport line, and the door transporter running on the door transport line is provided with door hanger support portions on both the left and right sides, A pair of left and right door hangers for loading and unloading door hangers between the floor side door stacking / lowering positions and the left and right door hanger support portions on the left and right sides of the body transportation line. A door conveyance facility provided with a lowering means is known from Patent Document 1 and the like.

  Thus, in the conventional door conveyance facility described in Patent Document 1, the pair of left and right door hanger loading / unloading means is provided between the door hanger support portions on the left and right sides of the door conveyance traveling body. Elevating device equipped with a horizontally movable fork-like movable base for transferring the door, an auxiliary conveyor for transferring the door hanger between the elevating device and the door installation / removal work area, and built in the auxiliary conveyor The door hanger has a turntable that inverts the direction of the door hanger horizontally by 180 degrees.

  That is, in the door installation / removal work area, an operator or a transfer machine is placed between the door hanger and the door hanger supported at an appropriate interval from the vehicle body transfer line, and the vehicle body and the door hanger are placed. Therefore, the door hanger supports the door on the side facing the vehicle body of the door hanger, but the door hanger is left in the same direction and the doors on the left and right sides of the door transport traveling body When it is transferred to the hanger support, the doors are positioned inside the door hangers on both the left and right sides of the door conveyance traveling body, and the outfitting work for the door sent to the outfitting line by the door conveyance traveling body is performed. The door hanger located on the outside of the door is not easy to get in the way. In order to solve such a problem, it is necessary to turn the direction of the door hanger horizontally by 180 degrees on the turntable, and the auxiliary conveyor is required to incorporate this turntable between the lifting device and the lift table.

JP-A-1-317881

  In the conventional door conveyance facility described in Patent Document 1 as described above, a large lifting device having a lifting carriage provided with a running fork (fork-like movable base) having a large horizontal retracting stroke is required as the lifting device. In addition, since an auxiliary conveyor for carrying a door hanger equipped with a turntable is required on the floor side, a large facility installation space is required on the floor side of the door installation / removal work area.

  An object of the present invention is to provide a door transport facility that can solve the above-described conventional problems, and the door transport facility according to claim 1 uses the reference numerals of the embodiments described later. In addition, a door conveyance line (door conveyance line by the door conveyance device 6) is provided above the vehicle body conveyance lines 1 and 2 on the floor side, and the door conveyance traveling body 40 traveling on the door conveyance line includes Door hanger support portions 48a and 48b are provided on both the left and right sides, and on the left and right sides of the vehicle body transfer lines 1 and 2, the door loading / unloading positions L1 on the floor side and the doors on the left and right sides of the door transfer traveling body 40 are provided. In a door transport facility provided with a pair of left and right door hanger loading / unloading means for transferring door hangers 9R, 9L to / from hanger support portions 48a, 48b, each door hanger loading / unloading means Elevating devices 7A and 7B provided on the left and right sides of lines 1 and 2, and auxiliary conveyors 8A and 8B that circulate horizontally between the elevating devices 7A and 7B and the door conveyance line, and each elevating device 7A, 7B includes a door hanger 9R, between the upper first door hanger transfer position L2 where the door hanger 9R, 9L is transferred between the auxiliary conveyors 8A, 8B and the floor side door loading / unloading position L1. 9L is raised and lowered, and the auxiliary conveyors 8A and 8B convey the door hangers 9R and 9L between the first door hanger transfer position L2 and the second door hanger transfer positions L3 on the left and right sides of the door conveyance line. The first door hanger transfer position L2 includes first transfer means (lifting device 7A, 7A, 7B) for transferring the door hangers 9R, 9L between the lifting devices 7A, 7B and the auxiliary conveyors 8A, 8B. B) is provided, and the second door hanger transfer position L3 includes the door hanger 9R, between the auxiliary conveyors 8A and 8B and the door hanger support portions 48a and 48b on the left and right sides of the door conveyance traveling body 40. The second transfer means for transferring 9L (door conveying traveling body elevating device 76) is provided.

  In carrying out the present invention having the above-described configuration, specifically, as described in claim 2, the auxiliary conveyors 8A and 8B include a moving body 22 having door hanger hanging portions 29a and 29b at the lower ends thereof, It comprises a guide rail 21 that supports the movable body 22 so that it can travel, and a drive means 23 that travels the movable body 22, and the door hangers 9R, 9L are engaged with the door hanger hanging portions 29a, 29b of the movable body 22. A suspension frame 10 provided with detachable suspended portions 14a and 14b at its upper end, and a door support (door bottom support 11 and door hinge support 12) provided on one side of the suspension frame 10 are provided. The suspension frame 10 of the door hangers 9R, 9L suspended from the moving body 22 can be configured to hang substantially vertically. In this case, as described in claim 3, the suspended portions 14 a and 14 b of the door hangers 9 R and 9 L have a shaft body 17 parallel to the traveling direction of the moving body 22 between a pair of front and rear support plates 18. The door hanger suspension portions 29a and 29b of the movable body 22 are configured by an upper open hook member 31 that receives the shaft body 17 between the pair of front and rear support plates 18, and the hook member 31 is constructed. The stoppers 32a and 32b for opening and closing the upper opening portion can be provided. Further, in this case, as described in claim 4, the stoppers 32 a and 32 b are biased and held in a closed position for closing the upper open portion of the hook member 31, and the door hanger 9 R, At the door hanger transfer position (second door hanger transfer position L3) to which 9L is transferred, the stoppers 32a and 32b are placed against the urging force against the open position where the upper open portion of the hook member 31 is opened. A switching cam rail 37 can be provided.

  According to a fifth aspect of the present invention, the auxiliary conveyors 8A and 8B include a moving body 22 having door hanger hanging portions 29a and 29b at the lower ends, and a guide rail 21 that supports the moving body 22 so that it can run. And a drive means 23 for running the moving body 22, and the elevating devices 7A and 7B use the divided part of the guide rails 21 of the auxiliary conveyors 8A and 8B as elevating guide rails 58. The movable body 22 is driven up and down between a raised position connected to the guide rails 21 of 8A and 8B and a lowered position corresponding to the floor side door loading / unloading position L1. And the door hangers 9R and 9L supported by the moving body 22 are integrally lifted and lowered, and the first transfer means is constituted by the lifting and lowering devices 7A and 7B. ) Is to be able. In this case, as described in claim 6, the door hangers 9R, 9L are suspended from the lower ends of the moving bodies 22 of the auxiliary conveyors 8A, 8B so as to be swingable in the lateral direction, and the door hangers 9R, 9L When the moving body 22 is lowered to the lowered position by the elevating guide rails 58 of the elevating devices 7A and 7B, the door hanger steady members 96a and 96b into which the lower ends of the door hangers 9R and 9L are fitted are disposed on the floor side. Can be arranged.

  When the configuration according to the fifth or sixth aspect is employed, the lifting body 57 that supports the lifting guide rails 58 of the lifting devices 7A and 7B includes the lifting guide rails 58 as described in the seventh aspect. A moving body positioning means 64 for positioning the moving body 22 of the supported auxiliary conveyors 8A and 8B at a fixed position can be provided. In addition, as described in claim 8, the door hangers 9R and 9L are suspended from the lower ends of the moving bodies 22 of the auxiliary conveyors 8A and 8B so as to be swingable in the lateral direction, and the elevators 7A and 7B are lifted and lowered. The elevating body 57 that supports the guide rail 58 prevents the left and right sideways swinging of the door hangers 9R and 9L suspended from the moving body 22 of the auxiliary conveyors 8A and 8B supported by the elevating guide rail 58. Oscillation preventing means (stabilizing guide rails 71a and 71b) can be provided. In this case, as described in claim 9, the swing preventing means comprises a pair of left and right steadying guide rails 71a, 71b disposed on the left and right sides of the door hangers 9R, 9L. , 9L can support a pair of left and right guide rollers 16a, 16b that roll below the pair of left and right guide rails 71a, 71b.

  In addition, as described in claim 10, the door hangers 9R and 9L are provided with supported portions 15a and 15b protruding in a cantilevered manner from the upper side to the left and right sides of the door conveying traveling body 40. Each of the door hanger support portions 48a, 48b includes a fitting portion 53 that can be fitted / removed in the vertical direction with respect to the fitted portion 19 provided on the supported portions 15a, 15b on the door hangers 9R, 9L side. The support members 51a and 51b and the lower portions of the door hangers 9R and 9L supported by the support members 51a and 51b are swung toward the door transporting traveling body 40 side surfaces (guide members). 20 abutting surfaces 52a, 52b that abut against and abut against the abutted surface 20a).

  Further, as described in claim 11, the door hangers 9R and 9L are engaged with the door hangers hanging portions 29a and 29b provided on the moving bodies 22 of the auxiliary conveyors 8A and 8B in the vertical direction. The supported portions 15a are provided with the suspended portions 14a and 14b to be combined with each other at the upper end and are fitted and supported in the vertical direction with respect to the door hanger support portions 48a and 48b on the left and right sides of the door transport traveling body 40. , 15b are provided so as to protrude laterally below the suspended portions 14a, 14b, and the second transfer means (door conveying traveling body elevating device 76) includes auxiliary conveyors 8A, 8B. Door hanger hanging portions 29a, 29b of the movable body 22 are suspended from the supported portions 15a, 15b of the door hangers 9R, 9L via the suspended portions 14a, 14b. The lower position where the gar support portions 48a, 48b are separated downward, and the suspended portions 14a, 14b of the door hangers 9R, 9L supported by the door hanger support portions 48a, 48b of the door transport traveling body 40 are auxiliary conveyors. The door transport traveling body lifting device 76 is configured to drive the door transport traveling body 40 up and down between the upper positions separated from the door hanger hanging portions 29a and 29b of the moving body 22 of 8A and 8B. Can do. In this case, as described in claim 12, the door transport traveling body elevating device 76 is driven to move up and down with a part of the guide rail 39 supporting and guiding the door transport traveling body 40 as the elevating guide rail 81. The door transport traveling body positioning means 83 for positioning the door transport traveling body 40 supported by the lift guide rail 81 at a fixed position is provided, and the door supported by the lift guide rail 81 is provided. On the left and right auxiliary conveyors 8A and 8B on which the door hangers 9R and 9L are transferred to and from the transport traveling body 40, the movable body 22 provided with the door hanger hanging portions 29a and 29b is positioned at a fixed position. A movable body positioning means 95 can be provided.

  Furthermore, as described in claim 13, in the door loading / unloading position L1 on the floor side, the doors DR, DL are provided on the side facing the vehicle body conveyance lines 1, 2 of the door hangers 9R, 9L. When the inner side surface of the DL is supported in the direction facing the vehicle body B, and the door hangers 9R and 9L are transferred to the left and right door hanger support portions 48a and 48b of the door transport traveling body 40, the doors on both sides The doors DR and DL can be configured to be supported not on the hangers 9R and 9L but on the outer sides of the door hangers 9R and 9L in a state in which the door inner side faces outward.

  When the door removed from the vehicle body on the vehicle body conveyance line is sent to the equipment line or the like using the door conveyance line by the door conveyance facility according to the present invention described in claim 1 above, The doors removed on both the left and right sides are respectively supported by a pair of left and right empty door hangers that are lowered to the door stacking position by lifting devices on both the left and right sides of the vehicle body transfer line, and the pair of left and right actual door hangers that support the door are supported. After each elevator lifts to the upper first door hanger transfer position, it is transferred to the auxiliary conveyor by the first transfer means, and the actual door hanger is moved to the second on both the left and right sides of the door conveyance line by this auxiliary conveyor. When the door hanger is transferred to the door hanger transfer position, the second transfer means moves the actual door hanger to the second door hanger transfer position on the door transfer line. To each door hanger support of the left and right sides of an empty door conveying traveling body that is waiting at a position capable of transferring. At this time, since the auxiliary conveyor circulates horizontally between the lifting device and the door conveyance line, the door hanger conveyed by the auxiliary conveyor has a direction at the first door hanger transfer position and a second door. The orientation at the hanger transfer position is reversed horizontally. Therefore, as in the prior art, the door supported on the door hanger facing the body conveyance line side of the door hanger is supported by the door hanger support portions on the left and right sides of the door conveyance traveling body. In some cases, it will be located outside both door hangers, not between both door hangers. In this state, the left and right doors for one vehicle body are set as a set, and the door is equipped with a traveling body for door transportation. It is possible to easily perform the outfitting operation on the door through this outfitting line.

  In the case of attaching the finished door on which the outfitting work has been completed to the vehicle body waiting on the vehicle body conveyance line, that is, the original vehicle body from which the door has been removed, by the door conveyance facility according to the present invention described in claim 1 above, Auxiliary conveyors that run through the door hangers to support the finished door on both the left and right sides, travel to the positions corresponding to the second door hanger transfer positions, and wait at each of the second door hanger transfer positions. The door hangers on both the left and right sides of the door conveyance traveling body are transferred to the left and right by the second transfer means, and the left and right auxiliary conveyors transfer the door hangers supporting the left and right finished doors to the first door hangers. Transport to the loading position. After this, the door hanger on the auxiliary conveyor side is transferred by the first transfer means to each lifting device in the raised position waiting at each first door hanger transfer position and lowered to the door lowering position, thereby The finished door can be lowered from the hanger and attached to the left and right sides of the original vehicle body that has been waiting on the vehicle body conveyance line.

  Although the door conveyance facility of the present invention can be used as described above, according to the door conveyance facility of the present invention, a door is provided between the door conveyance traveling body and the lifting device on the door conveyance line. The auxiliary conveyor that conveys the hanger conveys the door hanger between the first door hanger transfer position corresponding to the raised position of the lifting device and the second door hanger transfer position corresponding to the height of the door conveyance line. Therefore, it is only necessary to install a lifting device on the floor side of the door installation / removal work area, and the transfer of the door hanger between the lifting device and the auxiliary conveyor is performed by the first transfer means. Thus, a large lifting device having a lifting carriage provided with a running fork (fork-like movable base) having a large horizontal retracting stroke as in the prior art is unnecessary. Further, the auxiliary conveyor can provide the function of the turntable used in the conventional equipment, that is, the function of reversing the direction of the door hanger, eliminating the need for the turntable and the door installation / removal work area. The installation space on the floor side can be reduced.

  In addition, according to the structure of Claim 2, the general trolley conveyor for suspension conveyance can be utilized as an auxiliary | assistant conveyor, and also a door hanger also supports the upper end of the suspension frame which supports a door on one side. It is a simple suspension structure that only locks the suspended part to the door hanger hanging part of the moving body on the auxiliary conveyor side, but it can be safely transported with the hanging frame of the door hanger hanging almost vertically. can do. In this case, according to the configuration of the third aspect, the suspended door hanger can be positioned with respect to the traveling direction of the moving body on the auxiliary conveyor side, and the upper side of the moving body on the auxiliary conveyor side can be positioned during the conveyance. Since there is no fear that the door hanger is detached from the open hook member, the door hanger can be transported more safely. Further, according to the configuration of claim 4, an actuator such as a solenoid or a motor that switches the stopper to the open position at the door hanger transfer position where the door hanger is transferred to or from the moving body on the auxiliary conveyor side, and this Control means for controlling the actuator is unnecessary, and the stopper can be reliably switched to the open position at a predetermined position by using the traveling of the moving body with only the cam rail.

  According to the fifth aspect of the present invention, at the first door hanger transfer position, the first transfer means for transferring the door hanger between the lifting device and the auxiliary conveyor is also used by the lifting device. Compared with the case where a dedicated transfer means is additionally provided, not only can the equipment be simplified and the cost can be significantly reduced, but the door hanger lifting position on the lifting device side and the auxiliary position at the first door hanger transfer position can also be reduced. Because the door hanger position on the conveyor side is matched, the area of the equipment is smaller than when the door hanger position on the auxiliary conveyor side is shifted in the horizontal direction with respect to the door hanger lifting position on the lifting device side. Can also be reduced. In this case, according to the configuration of the sixth aspect, the door hanger is suspended from the lower end of the moving body of the auxiliary conveyor so as to be swingable in the lateral direction. Compared to the configuration in which the hanger's posture is fixed, when the moving body of the auxiliary conveyor can be made smaller and lighter, the door hanger is lowered to the door loading / unloading position by the lifting device. Since the door hanger is fixed in a fixed posture by the floor-side door hanger steadying member, the door loading / unloading operation on the door hanger can be performed safely and easily.

  Further, when the configuration according to claim 5 or 6 is adopted, according to the configuration according to claim 7, the moving body of the auxiliary conveyor that is moved up and down to the lifting device side is provided on the lifting device side. Since the moving body positioning means is positioned with respect to the lifting guide rail, there is no possibility that the door hanger suspended on the moving body will move in the length direction of the lifting guide rail, and at the door stacking / lowering position. The loading / unloading operation of the door with respect to the door hanger can be performed safely and easily. Furthermore, according to the structure of Claim 8, when the moving body by the side of the auxiliary conveyor which supported the door hanger transfers on the raising / lowering guide rail of a raising / lowering apparatus, it is suspended from the said moving body. Since the door hanger does not swing laterally and laterally, not only is the safety improved, but in particular, when the configuration according to claim 6 is adopted, the lower end of the door hanger is swung on the floor-side door hanger. It can be surely and smoothly fitted to the stop member. In addition, the door hanger swing prevention means is not provided for each of the many moving bodies on the auxiliary conveyor side, but the door hanger swings on the lifting body of the lifting device that is installed only on the left and right sides of the body conveyance line. Since the movement preventing means is provided, the equipment cost can be suppressed. Further, in this case, according to the structure of the ninth aspect, since the door hanger swing preventing means provided on the lifting device side can be configured by a pair of left and right guide rails for steadying, the structure is simple and inexpensive. be able to.

  In addition, when providing door hanger support parts with support bases that support the lower end of the door hanger on the left and right sides of the door transport traveling body, the inside of the door hanger supported on the left and right sides of the door transport traveling body However, according to the configuration of the tenth aspect, the door hanger support portions provided on the left and right door hanger support portions are provided. If the contact part is arranged so as to abut on the side of the door hanger as much as possible, most of the door hangers supported on both the left and right sides of the door transport traveling body will hang from the left and right sides of the door transport traveling body. The state can be configured. Therefore, it is possible to widen the space between the door hangers supported on the left and right sides of the door conveyance traveling body, and to use the space as a maintenance space or as a parts cart path in the outfitting line.

  Further, according to the structure of the eleventh aspect, the second transfer means for transferring the door hanger between the auxiliary conveyor and the door transport traveling body is moved up and down within a certain range. Since the auxiliary conveyor and the door transport traveling body are arranged in parallel, the door hanger is moved up and down and horizontally moved between the auxiliary conveyor and the door transport traveling body. Compared to the case where the transfer of the door hanger between the auxiliary conveyor and the door transport traveling body is performed by a transfer movement consisting of a combination of the above, the structure of the equipment is extremely simple and necessary for the equipment. The flat area can also be reduced. In this case, according to the structure of Claim 12, while the door conveyance traveling body raising / lowering apparatus can be implemented with a simple structure, the door conveyance traveling body to be moved up and down and the door hanger hanging portion on the auxiliary conveyor side Can reliably prevent relative movement in the respective traveling directions, and can safely and reliably transfer the door hanger between the auxiliary conveyor and the door conveying traveling body. .

  According to the structure of the thirteenth aspect, the door mounting / unloading operation with respect to the vehicle body on the vehicle body transport line and the door loading / unloading operation with respect to the door hanger at the left / right door stacking / unloading positions of the vehicle body are performed. In addition to being able to be easily performed, it is possible to easily perform component mounting work on the door supported on the door hanger supported on the left and right sides of the door conveyance traveling body in the door conveyance line.

It is a layout diagram of the conveyance path | route which shows one utilization form of the door conveyance equipment of this invention. It is a side view of a door hanger. It is a top view of a door hanger. Fig. A is a partially cutaway front view showing a state in which the door hanger is suspended from the moving body of the auxiliary conveyor, and Fig. B is an enlarged longitudinal side view of the door hanger hanging portion of the moving body. A is a side view showing a moving body of an auxiliary conveyor, B is a partially cutaway plan view showing the moving body and driving means, and C is an enlarged plan view showing a door hanger hanging portion of the moving body. . It is a side view which shows the state by which the door hanger was suspended by the moving body of the auxiliary conveyor. It is the side view which shows the state by which the door hanger was suspended by the traveling body for door conveyance of a door conveying apparatus, and the side view which shows the principal part of the traveling body for door conveyance. It is a top view which shows the traveling body for door conveyance, and the door hanger suspended by this. It is a front view which shows the traveling body for door conveyance, and the door hanger suspended by this. It is a front view which shows a door removal / removal work area. It is a side view which shows the moving body which suspended the raising / lowering apparatus and the door hanger suspended and hung by this. It is a front view which shows the moving body which suspended the raising / lowering device and the door hanger suspended and hung by this. It is a front view which shows the door hanger transfer means between the traveling body for door conveyance, and the moving body of an auxiliary conveyor in the state by which the door hanger is suspended by the moving body side of the auxiliary conveyor. It is a front view which shows the door hanger transfer means between the traveling body for door conveyance, and the moving body of an auxiliary conveyor in the state by which the door hanger is suspended by the traveling body side for door conveyance of a door conveyance line. It is a side view which shows the mobile body of the auxiliary conveyor which suspended the door hanger in the door hanger transfer part same as the above. It is a side view which shows the traveling body raising / lowering apparatus for door conveyance in a door hanger transfer part same as the above in the state in which the raising / lowering guide rail which supports the moving body of an auxiliary conveyor exists in a descent | fall limit position. It is a side view which shows the traveling body raising / lowering apparatus for door conveyance in a door hanger transfer part same as the above in the state in which the raising / lowering guide rail which supports the moving body of an auxiliary | assistant conveyor exists in a raise limit position. It is a side view which shows the moving body positioning means attached to a raising / lowering apparatus etc. It is a side view which shows the moving body positioning means attached to the traveling body raising / lowering apparatus for door conveyance.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In the layout diagram of FIG. 1, 1 is a vehicle body transfer line for door removal, 2 is a vehicle body transfer line for door attachment, and 3 is a vehicle body transfer for door removal. The door removal work area set in the line 1, 4 is a door installation work area set in the vehicle body transfer line 2 for door attachment, and 5 is a fitting work area for the removed door. The door detaching vehicle body conveying line 1 and the door attaching vehicle body conveying line 2 are constituted by a floor conveyor that supports and conveys the vehicle body B at the work level on the floor. Reference numeral 6 denotes a door conveyance device, which returns from the door removal work area 3 to the original door removal work area 3 through the fitting work area 5 and the door installation work area 4 in this order. It is comprised by the overhead conveyor which the traveling body 40 for door conveyance drive | works the door conveyance line provided in height.

  In the door removal work area 3 and the door attachment work area 4, the conveyance lines of the door conveyance device 6 are parallel to each other and the conveyance directions are directly above the door removal vehicle conveyance line 1 and the door attachment vehicle conveyance line 2. It arrange | positions so that it may become reverse direction. In the door removal work area 3 and the door installation work area 4, lifting devices 7A and 7B and auxiliary conveyors 8A and 8B are arranged on the left and right sides of the vehicle body transfer lines 1 and 2 (the transfer lines of the door transfer device 6), respectively. It is installed.

  The right door DR and the left door DL removed from the vehicle body B are supported by being divided into a door hanger 9R for the right door and a door hanger 9L for the left door, respectively, and the lifting devices 7A and 7B, the auxiliary conveyor 8A, 8B and the door conveyance device 6 are handled. The door hanger 9R for the right side door and the door hanger 9L for the left side door have symmetrical structures, and as shown in FIGS. Via a door bottom part support 11 projecting from one side of the lower end front-rear frame member 10a and a door hinge part support 12 projecting one side from the front and rear vertical frame members 10b, 10c of the hanging frame 10. A pair of front and rear right doors DR or left doors DL are supported on one side of the suspension frame 10 so as to be detachable in a substantially vertical posture parallel to the suspension frame 10. The horizontal members 13a and 13b projecting to the left and right sides are fixed to the front and rear direction frame member 10d of the upper end of the suspension frame 10 at the two front and rear sides, and the suspended portions 14a and 14b are respectively attached to the horizontal members 13a and 13b. The supported portions 15a and 15b and a pair of left and right guide rollers 16a and 16b supported by a horizontal axis in the left and right direction are attached.

  The pair of front and rear suspended portions 14a and 14b is configured by laying a shaft body 17 parallel to the conveying direction between a pair of front and rear support plates 18, and the shaft body 17 is configured as a suspension frame 10 as shown in FIG. When viewed from the front and rear in the conveying direction, the shaft body is located at a position displaced to the side with the doors DR and DL supported on one side of the suspension frame 10 with respect to the position directly above the suspension frame 10. When the suspension 17 is suspended, the suspension frame 10 that supports the doors DR and DL is configured to hang substantially vertically by gravity. Further, the pair of front and rear supported portions 15a and 15b are arranged in the front-rear direction from the ends of the horizontal members 13a and 13b opposite to the side on which the doors DR and DL are supported with respect to the suspension frame 10. It is provided with a to-be-fitted portion 19 formed by a through hole penetrating in the vertical direction. Furthermore, the front and rear vertical frame members 10b and 10c of the hanging frame 10 are vertically covered on the left and right sides of the upper end of the hanging frame 10 on the side where the supported portion 15 is provided with respect to the hanging frame 10. A guide member 20 forming the contact surface 20a is attached. The lower end portion of the guide member 20 includes an inclined guide surface 20b whose upper end is connected to the contacted surface 20a.

  The auxiliary conveyors 8A and 8B have the same structure, and as shown in FIGS. 4 to 6, the guide rail 21 is installed at an appropriate height above the floor surface, and is supported by the guide rail 21 so as to run freely. The moving body 22 and a driving means 23 for driving the moving body 22 are provided. The moving body 22 includes a load bar 24 and four trolleys 25a to 25d that suspend the load bar 24. The load bar 24 is constituted by connecting short front and rear end load bar units 24a and 24e and intermediate three load bar units 24b to 24d so that they can be bent at least in the horizontal direction. It arrange | positions so that the connection part of load bar single-piece | unit 24a-24e may be suspended. As the drive means 23, for example, a drive composed of a friction drive wheel 26 sandwiching the left and right side surfaces of the load bar 24, a backup roller 27, and a motor 28 that rotationally drives the friction drive wheel 26 can be used. Since the overhead conveyor composed of the guide rail 21, the moving body 22, and the driving means 23 is conventionally well-known, detailed description thereof is omitted.

  The movable body 22 is provided with a pair of front and rear hanger hanging portions 29a and 29b below the central load bar unit 24c of the load bar 24. These hanger hanging portions 29a and 29b are constituted by hook members 31 that are open on the upper side and project from one side of the left and right sides from a frame member 30 that is continuously provided on the lower side of the central load bar unit 24c. As shown in B, the hook member 31 is fitted between the pair of front and rear support plates 18 in the pair of front and rear suspended portions 14a and 14b of the door hangers 9R and 9L. It fits upward from the lower side with respect to the shaft body 17 of 14b, and supports the to-be-suspended parts 14a and 14b. The pair of front and rear hanger hanging portions 29a and 29b are provided with stoppers 32a and 32b for opening and closing the upper release portion of the hook member 31.

  As shown in FIG. 5C, the stoppers 32a and 32b are formed of a belt-like plate whose middle portion in the length direction is pivotally supported on the frame member 30 so as to be swingable in the front-rear and horizontal directions around the vertical support shaft 33. Thus, the front end portion is biased and held by the torsion coil spring 34 and the restraining member 35 at the closed position where the upper open portion of the hook member 31 is closed, and the rear end portion is pivotally supported by the vertical support shaft. A cam follower roller 36 is attached. Thus, as indicated by phantom lines in FIGS. 5B and 5C, stoppers 32 a and 32 b are placed on the hanger transfer position in the travel path of the moving body 22 via the cam driven roller 36. A cam rail 37 that switches against the urging force of the torsion coil spring 34 is provided at a release position that opens the upper opening. In addition, the movable body 22 includes a positioning sandwiched portion that protrudes to the left and right sides near the front end of the frame member 30, that is, to the side opposite to the side where the hook member 31 protrudes from the frame member 30. 38 is provided. The sandwiched portion 38 for positioning is constituted by a roller that is supported by a vertical support shaft.

  Next, the structure of the door conveyance apparatus 6 is demonstrated based on FIGS. The door transport device 6 includes a guide rail 39 installed at an appropriate height above the floor surface, a door transport traveling body 40 supported so as to be able to travel on the guide rail 39, and the door transport traveling body 40. It is comprised by the overhead conveyor comprised from the drive means 41 to be made. The door conveyance traveling body 40 is composed of a load bar 42 and four trolleys 43a to 43d for suspending the load bar 42. The load bar 42 is composed of a single load bar 42a, 42e on the front and rear ends, and three intermediate ones. The load bar units 42b to 42d are connected so as to be bent at least in the horizontal direction, and the trolleys 43a to 43d are arranged to suspend the connecting portions of the load bar units 42a to 42e. As the drive means 41, for example, a drive composed of a friction drive wheel 44 and a backup roller 45 sandwiching the left and right side surfaces of the load bar 42 and a motor 46 that rotationally drives the friction drive wheel 44 can be used. The configuration of the main body composed of the load bar 42 and the trolleys 43a to 43d of the door transport traveling body 40 is basically the same as the configuration of the auxiliary conveyors 8A and 8B. In addition, the connecting means 47 is provided so that the door conveyance traveling bodies 40 adjacent to each other can be connected to each other and can be integrally driven.

  The connecting means 47 is supported by a locking projection 47a projecting upward from the front end of the load bar unit 42a at the front end, and is pivotally supported on the upper side of the load bar unit 42e at the rear end so as to be swingable up and down. It is composed of a locking piece 47b to be taken out, and a cam driven roller 47c pivotally supported on the side of the front end of the locking piece 47b. As shown in phantom lines in FIG. The locking piece 47b of the body 40 covers and engages the locked protrusion 47a of the rear door transport traveling body 40, so that the front door transport traveling body 40 and the rear door transport traveling body 40 are engaged. Can be driven tow. At the position where the front and rear door transport traveling bodies 40 are uncoupled, the cam rails arranged on the side of the travel path act on the cam driven roller 47c of the locking piece 47b of the front door transport traveling body 40, thereby By moving 47b upward, it is detached from the locked protrusion 47a of the rear door transport traveling body 40, and in this state, the front door transport traveling body 40 is switched to high speed travel, thereby connecting the front and rear to each other. The door conveyance traveling bodies 40 that have been separated are separated from each other.

  The door conveyance traveling body 40 of the door conveyance device 6 having the above-described configuration includes a right-side door hanger 9R and a left-side door hanger on the left and right sides below the central load bar unit 42c in the load bar 42. Hanger support portions 48a and 48b for suspending 9L in a symmetrical manner so that the hanging frame 10 is located on the inside and the doors DR and DL are located on the outside are provided. The hanger support portions 48a and 48b are arranged on both the left and right sides of a suspension frame 50 that is suspended at a center position in the width direction by a horizontal support shaft 49 parallel to the traveling direction at a lower center position of the center load bar unit 42c. Provided in the department. That is, each hanger support part 48a, 48b is a pair of front and rear support members that extend laterally from the front and rear ends of the suspension frame 50 and support the pair of front and rear supported parts 15a, 15b of the door hangers 9R, 9L at the tip part. 51a, 51b and a pair of front and rear rollers comprising rollers supported by front and rear horizontal support shafts so as to rollably contact the vertical contact surfaces 20a of the pair of front and rear guide members 20 of the door hangers 9R, 9L. Contact portions 52a and 52b are provided. Each of the support members 51a and 51b is constituted by a vertical pin that fits upward into the fitted portion (through hole) 19 provided in the supported portions 15a and 15b on the side of the supporting door hangers 9R and 9L. A fitted portion 53 is provided. Of the pair of front and rear support members 51a and 51b, the front support member 51a is provided with a left and right horizontal frame member 54 which is positioned parallel to the support member 51a on the front side, and the pair of front and rear contacts. Among the portions (rollers) 52a and 52b, the front contact portions (rollers) 52a are provided at both left and right ends of the left and right horizontal frame member 54, and further above the left and right horizontal frame member 54, respectively, A pair of left and right steadying guide rollers 55 supported by the support shaft is provided.

  The lifting devices 7A and 7B have the same structure, and as shown in FIGS. 10 to 12, a lifting body 57 that is driven up and down along a lifting guide column 56 that is vertically installed on the floor surface. Upper first door hanger transfer position for transferring the door hanger 9R, 9L to and from the auxiliary conveyor 8A, 8B for the moving body 22 of the auxiliary conveyor 8A, 8B that hangs and conveys the door hanger 9R, 9L. It is raised and lowered between L2 and the floor side door loading / unloading position L1. The elevating body 57 includes a horizontal beam member 57a on the side of the elevating guide column 56 facing the vehicle body conveyance lines 1 and 2, and an elevating guide for supporting the movable body 22 below the horizontal beam member 57a. A rail 58 is installed in parallel with the horizontal beam member 57a. As the raising / lowering drive means 59 of the raising / lowering body 57, the raising / lowering balance weight 60 and the raising / lowering body 57 which were loosely fitted in the raising / lowering guide support | pillar 56 were moved between the upper and lower ends of the raising / lowering guide support | pillar 56 so A conventionally well-known one in which a wound transmission gear (such as a chain or wire rope) 61 is driven by a motor 62 can be used. Thus, as shown in FIG. 12, the elevating guide rail 58 that is driven up and down by the elevating body 57 moves the guide rails 21 of the auxiliary conveyors 8A and 8B at the first door hanger transfer position L2 that is the ascending limit position. It is to be connected and is constituted by a part of the guide rail 21 divided.

  The elevating body 57 for installing the elevating guide rail 58 includes a driving means 63 for pulling the moving body 22 on the auxiliary conveyors 8A and 8B side from the upper side to a fixed position on the elevating guide rail 58 and sending it to the lower side, and the fixed position. The movable body positioning means 64 for positioning the movable body 22 with the above, the swing preventing means 65 for blocking the lateral swing of the door hangers 9R, 9L suspended from the movable body 22 on the lifting guide rail 58, and Locking means 66 is provided for locking the elevating guide rail 58 in a state where it is in the ascending limit position where the elevating guide rail 58 is connected to the guide rail 21 on the side of the auxiliary conveyors 8A and 8B, that is, the first door hanger transfer position L2.

  Since the drive means 63 has the same configuration as that of the drive means 23 that travels and drives the moving body 22 in the auxiliary conveyors 8A and 8B, the same reference numerals are used and description thereof is omitted. For example, as shown in FIG. 18, the moving body positioning means 64 has support shafts 67 a and 67 b that can be opened and closed freely so as to hold the positioning sandwiched portions (rollers) 38 provided on the moving body 22 from both front and rear sides. A pair of front and rear sandwiching pieces 68a and 68b pivotally supported by each other, a link 69 interlockingly connecting both the sandwiching pieces 68a and 68b so that the both sandwiching pieces 68a and 68b open and close together, and a sandwiching piece 68b on one side A cylinder unit 70 that opens and closes the cylinder can be used. As shown in FIG. 11 and FIG. 12, the swing preventing means 65 is a pair of left and right supported by the elevating body 57 so as to be in contact with the upper side of the two pairs of front and rear guide rollers 16a and 16b of the door hangers 9R and 9L. The guide rails 71a and 71b for steadying are provided. The lock means 66 is conventionally known in this type of lifting device, and as shown in FIG. 12, fitted portions 72a and 72b attached to both ends of the horizontal beam member 57a of the lifting body 57, and auxiliary members. A movable fitting member 74a supported on a horizontal beam member 73 supporting the guide rails 21 on the conveyors 8A and 8B side so as to be freely detachable from the fitting portions 72a and 72b in a horizontal direction. 74b and cylinder units 75a and 75b for driving the movable fitting members 74a and 74b.

  As shown in FIGS. 1 and 10, the auxiliary conveyors 8 </ b> A and 8 </ b> B are door conveyance lines of a door conveyance device 6 disposed in parallel with the vehicle body conveyance lines 1 and 2 immediately above the vehicle body conveyance lines 1 and 2. And the lifting device 7A, 7B are arranged so that the moving body 22 travels in a horizontal circulation, but the traveling route passes through the first door hanger transfer position L2 adjacent to the lifting devices 7A, 7B. A traveling path portion in which the moving body 22 travels in parallel with the moving portion 22 in the opposite direction is adjacent to the door transport line of the door transport device 6 and a door transport travel body 40 traveling on the door transport line. A second door hanger transfer position L3 for transferring the door hangers 9R, 9L is set. That is, the second door hanger transfer position L3 is set on each of the auxiliary conveyors 8A and 8B on the left and right sides of the vehicle body transfer lines 1 and 2 adjacent to the left and right sides of the vehicle body transfer lines 1 and 2, respectively.

  As shown in FIG. 10, the door conveyance line of the door conveyance device 6 sandwiched between the second door hanger transfer positions L <b> 3 of the auxiliary conveyors 8 </ b> A and 8 </ b> B has a door conveyance traveling body at a fixed position on the door conveyance line. A door conveying traveling body elevating device 76 for elevating and lowering 40 is also provided. Referring to FIGS. 13 to 17, the door transport traveling body elevating device 76 will be described with reference to FIGS. 13 to 17. The upper side of the floor so as to support the guide rail 21 passing through the second door hanger transfer position L3 of both auxiliary conveyors 8A and 8B. As shown in FIGS. 16 and 17, the gantry frame 77 installed at an appropriate height is guided up and down through a pair of front and rear guide means 78 a and 78 b and is driven up and down by one cylinder unit 79. An elevating frame 80 is suspended, and an elevating guide rail 81 that elevates and lowers while supporting the door conveying traveling body 40 is installed under the elevating frame 80. The elevating guide rail 81 connects the guide rail 39 of the door transport device 6 at the ascending limit position, and is constituted by a divided part of the guide rail 39.

  The lift guide rail 81 is configured to pull the door transport traveling body 40 from the upper side to a fixed position on the lift guide rail 81 and to send the door transport traveling body 40 to the lower position, and to position the door transport traveling body 40 at the fixed position. Locking means 84 for locking the door conveying traveling body positioning means 83 and the lifting guide rail 81 at the ascending limit position connecting to the guide rail 39 on the door conveying apparatus 6 side is provided.

  Since the drive means 82 is the same as the drive means 41 for driving the door transport traveling body 40 of the door transport device 6, the same reference numerals are used and description thereof is omitted. For example, as shown in FIG. 19, the door conveyance traveling body positioning means 83 sandwiches one of the left and right pair of steadying guide rollers 55 provided on the door transportation traveling body 40 from both the front and rear sides. The pair of sandwiching pieces 86a and 86b, which are pivotally supported by the support shafts 85a and 85b so as to be freely opened and closed, and the sandwiching pieces 86a and 86b are interlocked and connected to each other so that the sandwiching pieces 86a and 86b are opened and closed. A link 87 and a cylinder unit 88 that opens and closes the holding piece 86b on one side can be used. As shown in FIGS. 16 and 17, the lock means 84 is a roller that is pivotally supported by a horizontal horizontal support shaft on one side of the upper ends of column members 89 a and 89 b erected on both front and rear ends of the lifting frame 80. Between the configured supported parts 90a and 90b and the front and rear end parts of the mount frame 77 between the protruding position for supporting the supported parts 90a and 90b and the retracted position away from the supported parts 90a and 90b. The movable support members 91a and 91b are supported horizontally so as to be movable in and out, and cylinder units 92a and 92b for driving the movable support members 91a and 91b. The column members 89a and 89b have supported portions 93a and 93b that are received by the support portions 77a and 77b provided on the mount frame 77 when the elevating guide rail 81 is lowered to the lower limit position. It is installed.

  Further, the second door hanger transfer position L3 of each auxiliary conveyor 8A, 8B is moved from the upper side to the fixed position of the second door hanger transfer position L3 as shown in FIGS. A driving means 94 that pulls in and sends it to the lower side and a moving body positioning means 95 that positions the moving body 22 at the fixed position are provided. Since the drive means 94 has the same configuration as that of the drive means 23 that travels and drives the moving body 22 in the auxiliary conveyors 8A and 8B, the same reference numerals are used and description thereof is omitted. The moving body positioning means 95 is the same as the moving body positioning means 64 provided on the lifting body 57 of the lifting devices 7A and 7B (see FIG. 18).

  First, an outline of a method for using the door conveyance equipment configured as described above will be described. As shown in FIG. 1, the vehicle body B sent out from the painting process with the doors DR and DL attached to both the left and right sides is as follows. It is transported to a predetermined position in the door removal work area 3 by the floor conveyor of the door removal body conveyance line 1, and in this door removal work area 3, an operator or a door removal robot on both the left and right sides of the door removal body conveyance line 1. Thus, the doors DR and DL are removed from both the left and right sides of the vehicle body B, and the vehicle body B from which the doors DR and DL have been removed is sent out by the floor conveyor of the vehicle body conveyance line 1 for door removal.

  On the other hand, the empty door hangers 9R and 9L are sent into the door removal work area 3 by the door conveying traveling body 40 of the door conveying device 6, and the moving bodies of the auxiliary conveyors 8A and 8B from the door conveying traveling body 40 here. After being transferred to the lifting and lowering devices 7A and 7B by the moving body 22, the lifting and lowering devices 7A and 7B are lowered to the floor side door stacking position together with the moving body 22. On the door hanger 9R for the empty right door and the door hanger 9L for the empty left door lowered to the door loading position, the right door DR and the left door DL removed from the left and right sides of the vehicle body B as described above are provided. Each is loaded. The door transporting traveling body 40 of the door transporting device 6 that has been emptied by moving the door hangers 9R, 9L to the moving body 22 of the auxiliary conveyors 8A, 8B is waiting at a fixed position in the door removing work area 3 as it is. . The door hangers 9R and 9L loaded with the doors DR and DL are returned to the transport line of the auxiliary conveyors 8A and 8B by the elevating devices 7A and 7B together with the moving body 22, and are waiting for the empty door transport traveling body 40. Drive to a position adjacent to.

  Next, the door hangers 9R and 9L loaded with the doors DR and DL are transferred from the moving bodies 22 of the auxiliary conveyors 8A and 8B to the door removal work area 3 after the door hangers 9R and 9L are transported. It is returned to the door conveyance traveling body 40 waiting in the area 3. As a result, the right door DR removed from the right side of the vehicle body B is supported by the door hanger 9R for the right door through the lifting device 7A and the auxiliary conveyor 8A for handling the right door of the door removal work area 3. Then, the empty door hangers 9R and 9L are loaded on the hanger support 48a that supports the empty door hanger 9R for the empty right door of the door conveyance traveling body 40 that has been conveyed into the door removal work area 3. The left door DL removed from the left side of B is supported by the door hanger 9L for the left door, and is emptied through an elevating device 7B that handles the left door of the door removal work area 3 and the auxiliary conveyor 8B. The door hanger 9R, 9L is detached and the door hanger 9L for the empty left door of the door transporting traveling body 40 that has been transported into the work area 3 is supported. It will be loaded into the hanger supporting portion 48b.

  In the hanger support portions 48a and 48b on the left and right sides, the door transporting traveling body 40 that supports the door hangers 9R and 9L loaded with the doors DR and DL, respectively, is sent into the outfitting work area 5. Inside, the outfitting work for the doors DR and DL is performed. This outfitting operation is performed on the doors DR and DL loaded on the door hangers 9R and 9L supported by the hanger support portions 48a and 48b of the door conveyance traveling body 40. The traveling level of the door conveyance traveling body 40 is lowered to a level at which the outfitting work can be easily performed.

  As shown in FIG. 1, the door hangers 9R and 9L that support the doors DR and DL that have been installed are supported on the left and right sides of the door conveyance traveling body 40, and are in a fixed position within the door installation work area 4. Here, after being transferred to the moving bodies 22 of the auxiliary conveyors 8A and 8B on the left and right sides, and transported to the lifting devices 7A and 7B by these moving bodies 22, the doors on the floor side are moved by the lifting devices 7A and 7B. It is lowered to the lowered position. That is, the door hanger 9R for the right side door that supports the right side door DR is connected to the floor side door via the auxiliary conveyor 8A and the lifting device 7A on the right side of the vehicle body B on the floor side vehicle mounting line 2. The door hanger 9L for the left door that supports the left door DL is lowered to the door lowering position on the right side of the vehicle body B on the mounting body transport line 2, and the vehicle hanger 9L on the floor side door mounting body transport line 2 The vehicle is lowered to the door lowering position on the left side of the vehicle body B on the floor-side door mounting body conveyance line 2 via the left auxiliary conveyor 8B and the lifting device 7B.

  In the door mounting body conveyance line 2, the vehicle body B to which the doors DR and DL lowered while being supported by the door hangers 9 </ b> R and 9 </ b> L to the door lowering positions on both the left and right sides is in a fixed position in the door mounting work area 4. The doors DR, DL from the door hangers 9R, 9L are lowered to the floor-side door lowering positions by the lifting devices 7A, 7B by the operator or the door removal robot on both the left and right sides of the vehicle body B. And an operation of attaching the doors DR and DL to both the left and right sides of the vehicle body B on the vehicle body transfer line 2 for door attachment. Note that the door removal vehicle conveyance line 1 and the door attachment vehicle conveyance line 2 are the vehicle removal B in which the doors DR and DL are removed in the door removal work area 3, and the removed doors DR and DL are in the outfitting work area. After the outfitting work in 5, when they are returned to the door installation work area 4, they are connected to each other so that they are sent to a fixed position in the door installation work area 4 or between both lines 1 and 2. It can be connected via a vehicle body transfer means for transferring the vehicle body B.

  In the door installation work area 4, the door hangers 9R and 9L, which are emptied by lowering the doors DR and DL as described above, pass through the elevating devices 7A and 7B and the auxiliary conveyors 8A and 8B. , 9L are transferred to the moving body 22 of the auxiliary conveyors 8A, 8B and then returned to the empty door transporting traveling body 40 waiting in the same position, and the door transporting body 40 again removes the door. In this door removal work area 3, the doors DR and DL removed from the vehicle body B on the door removal vehicle transport line 1 are transported to the outfitting work area 5.

  Next, the operation of each of the above devices will be described in detail. The lifting devices 7A and 7B are configured to lift and lower the lifting body 57 by rotating the winding transmission device 61 forward and backward by the lifting drive means 59 with the configuration described above. By moving up and down along the guide column 56, the moving body 22 of the auxiliary conveyors 8A and 8B transferred to the lifting guide rail 58 supported by the lifting body 57 is the door stacking / lowering position L1 which is the lower limit position. And the first door hanger transfer position L2 that is the ascending limit position. At this time, as shown in FIG. 10, the moving bodies 22 of the auxiliary conveyors 8 </ b> A and 8 </ b> B that are transferred to the lifting guide rail 58 are moved from the lifting guide column 56 to the door removal body transportation line 1 or the door attachment body transportation line 2. The door hangers 9R and 9L suspended from the hanger suspension portions 29a and 29b of the movable body 22 via the suspended portions 14a and 14b are lifted and lowered relative to the suspension frame 10. The doors DR and DL are supported on the side opposite to the side where the guide column 56 is located (the side where the door removing body transport line 1 or the door mounting body transport line 2 is present). At this time, as shown in the figure, the doors DR and DL are oriented such that the inner side surfaces of the doors face the side where the door removing body transport line 1 or the door mounting body transport line 2 is located, and accordingly, the door removing body transport line 1. Alternatively, it is supported by the door hangers 9R and 9L in the direction opposite to the inside and outside of the direction of attachment to the vehicle body B on the door attachment vehicle body conveyance line 2.

  Further, the door hangers 9R and 9L are suspended so as to be swingable in the horizontal and lateral directions around the shaft body 17 fitted to the hook members 31 of the hanger hanging portions 29a and 29b on the movable body 22 side. However, when the moving body 22 suspending the door hangers 9R and 9L is transferred onto the lifting guide rail 58 of the lifting devices 7A and 7B, it is attached to the lifting guide rail 58 as shown in FIG. A pair of left and right steadying guide rails 71a and 71b on the guide rollers 16a and 16b on the side of the door hangers 9R and 9L, and the door hangers 9R and 9L swing laterally about the shaft body 17. Is blocking.

  Further, as shown in FIGS. 11 and 12, the moving body 22 on the lifting guide rail 58 is positioned by the moving body positioning means 64 at a fixed position of the lifting guide rail 58, and the moving body 22 (door hanger 9R, 9L) does not move in the length direction of the lifting guide rail 58. As shown in FIG. 18, the moving body positioning means 64 closes the pair of front and rear holding pieces 68a and 68b by the piston rod extending operation of the cylinder unit 70, and moves the moving body positioning means 64 between the holding pieces 68a and 68b. The positioning sandwiched portion (vertical axis roller) 38 is sandwiched from both the front and rear sides, and the moving body 22 can be adjusted to a fixed position in the sandwiching process.

  It is moved by the lifting and lowering devices 7A and 7B by the anti-swaying action on the door hangers 9R and 9L by the guide rails 71a and 71b for steadying and the guide rollers 16a and 16b and the positioning action of the moving body 22 by the moving body positioning means 64. The process of moving the body 22 up and down between the door loading / unloading position L1 and the first door hanger transfer position L2 can be performed safely.

  Further, in the lifting devices 7A and 7B, the movable body 22 that suspends the empty door hangers 9R and 9L or the door hangers 9R and 9L that support the equipped doors DR and DL is lowered to the door loading / unloading position L1. However, at this time, as shown in FIGS. 10 and 12, the hanger steady rest is provided on the floor surface at the two front and rear positions 10 a of the frame material 10 a at the lower end in the hanging frame 10 of the door hanger 9 R, 9 L. By fitting the upper ends of the members 96a and 96b into the upper-end bifurcated portions 97 so that the lower ends of the door hangers 9R and 9L do not swing horizontally, The door hanger suspended from the moving body 22 in combination with the anti-swaying action on the door hanger 9R, 9L by the 71b and the guide rollers 16a, 16b. 9R, doors DR, the can be easily and safely loading operation or unloading operations DL for 9 L.

  The transfer of the door hangers 9R, 9L or the empty door hangers 9R, 9L supporting the doors DR, DL between the elevating devices 7A, 7B and the auxiliary conveyors 8A, 8B is performed as follows. That is, the elevating body 57 (elevating guide rail 58) of the elevating devices 7A and 7B is moved up by the elevating drive means 59, and the moving body 22 is moved up to the first door hanger transfer position L2 having a predetermined height above the floor surface. As a result, as shown in FIG. 12, the elevating guide rail 58 on the elevating devices 7A and 7B side is connected to the guide rail 21 of the auxiliary conveyors 8A and 8B, so that the lock means 66 is operated to raise and lower the elevating body 57 (elevating guide rail). 58) is locked at the first door hanger transfer position L2. That is, the movable fitting members 74a and 74b whose heights are fixed are advanced and moved by the cylinder units 75a and 75b of both the front and rear locking means 66, and the tip ends thereof are fitted portions on the lifting body 57 (horizontal beam member 57a) side. 72a and 72b are fitted, and the elevating body 57 is locked in a state where the elevating guide rail 58 is connected to the guide rail 21 of the auxiliary conveyors 8A and 8B.

  When the lock of the elevating body 57 (the elevating guide rail 58) is completed by the locking means 66, the driving means 63 on the elevating body 57 side is operated, and the moving body 22 on the elevating guide rail 58 is moved to the auxiliary conveyors 8A and 8B. The movable body 22 is fed out on the lower guide rail 21 or the movable body 22 fed from the upper guide rail 21 onto the lift guide rail 58 is pulled to a fixed position. Of course, when the moving body 22 is sent out from the lifting guide rail 58, the positioning of the moving body 22 by the moving body positioning means 64 is released immediately before that, and when the moving body 22 is drawn onto the lifting guide rail 58, Immediately thereafter, the retracted moving body 22 is positioned at a fixed position by the moving body positioning means 64.

  Stoppers provided on the hanger suspension portions 29a and 29b of the moving body 22 when transporting the door hangers 9R and 9L on the auxiliary conveyors 8A and 8B and lifting and lowering the door hangers 9R and 9L on the lifting devices 7A and 7B. As shown in FIGS. 4B and 5C, 32a and 32b are held by the urging force of the torsion coil spring 34 in the closed position for closing the upper open portion of the hook member 31, so that the door hangers 9R and 9L There is no possibility that the shaft body 17 in the suspended portions 14a and 14b is unexpectedly detached from the hook members 31 in the hanger hanging portions 29a and 29b on the movable body 22 side.

  Transfer of the door hangers 9R and 9L supporting the doors DR and DL from the moving body 22 of the auxiliary conveyors 8A and 8B to the door conveying traveling body 40 of the door conveying device 6 or the door attaching operation in the door removing work area 3 Transfer of empty door hangers 9R, 9L from the moving bodies 22 of the auxiliary conveyors 8A, 8B to the door conveying traveling body 40 of the door conveying device 6 in the area 4 is performed as follows. That is, the moving bodies 22 on the side of the auxiliary conveyors 8A and 8B sent to the second door hanger transfer positions L3 set on the left and right sides of the door conveying traveling body positioning means 83 on the door conveying line of the door conveying device 6 are: The second door hanger transfer position L3 is pulled to a predetermined position by the driving means 94 provided at the second stop and stopped, and thereafter, the position is adjusted to a fixed position by the moving body positioning means 95 and fixed. The moving body positioning means 95 operates in the same manner as the moving body positioning means 64 provided in the elevating devices 7A and 7B. Further, as shown in FIGS. 13 and 14, a cam rail 37 (see FIG. 5B) is disposed at the second door hanger transfer position L3, and the moving body 22 is moved to the second door hanger transfer position. When fed into L3, the stoppers 32a and 32b provided on the hanger hanging portions 29a and 29b of the moving body 22 are removed from the upper open portion of the hook member 31 as indicated by phantom lines in FIGS. 4B and 5C. It is switched to the release position that is laterally separated.

  On the other hand, as shown in FIG. 17, the door conveying traveling body elevating device 76 is moved up and down to the guide rail 39 of the door conveying device 6 by raising the elevating frame 80 to the ascending limit position by the contraction movement of the piston rod of the cylinder unit 79. Waiting with the guide rail 81 connected. At this time, the movable support members 91a and 91b are switched to the advanced limit positions by the cylinder units 92a and 92b of the lock means 84 as shown in the figure, and the distal ends of the movable support members 91a and 91b are supported portions 90a on the lifting frame 80 side. , 90b, the lifting guide rail 81 is held at the ascent end position.

  The empty door transporting traveling body 40 of the door transporting device 6 is moved up and down with the upper drive means 41 to a fixed position on the lifting guide rail 81 held at the ascending limit position of the door transporting traveling body lifting device 76. When it is fed to the guide rail 81 by the driving means 82 provided adjacent to the guide rail 81, the door transfer traveling body 40 is positioned at a fixed position by the door transfer traveling body positioning means 83 provided adjacent to the lifting guide rail 81. That is, as shown in FIG. 19, the pair of front and rear sandwiching pieces 86a and 86b are closed by the piston rod extending operation of the cylinder unit 88, and the steadying of the door conveyance traveling body 40 side between the sandwiching pieces 86a and 86b. The guide roller 55 is clamped from both the front and rear sides, and the door conveyance traveling body 40 is adjusted to a fixed position in the clamping process. Thereafter, as shown in FIG. 16, the movable support members 91a and 91b are switched to the retreat limit position where the movable support members 91a and 91b are separated from the supported portions 90a and 90b on the lifting frame 80 side by the cylinder units 92a and 92b of the lock means 84. The lift frame 80 is lowered to the lower limit position by the extension movement of the piston rod of the cylinder unit 79, and the supported portions 93a and 93b of the column members 89a and 89b are received by the support portions 77a and 77b on the frame frame 77 side, The elevating guide rail 81 is held at the lower limit position. That is, the empty door transporting traveling body 40 that has been transferred to the fixed position of the lifting guide rail 81 of the door transporting traveling body lifting device 76 waits at a standby position that is lowered by a certain height from the travel level. .

  As shown in FIG. 13, the empty door transporting traveling body 40 standing by at a fixed position on the lifting guide rail 81 at the lower limit position of the door transporting traveling body lifting device 76, as shown in FIG. The hanger support portions 48a and 48b are respectively suspended from the moving bodies 22 on the side of the auxiliary conveyors 8A and 8B sent to the second door hanger transfer positions L3 on the left and right sides of the empty door transport traveling body 40. The hanger 9R, 9L is separated below the supported parts 15a, 15b, and the empty door transporting traveling body 40 and the moving body 22 from which the door hangers 9R, 9L are suspended travel relatively without interfering with each other. Since it is in the state to obtain, the moving body 40 on the side of the auxiliary conveyors 8A and 8B that suspend the door hangers 9R and 9L respectively waits for the empty door transporting traveling body 40 as described above. It can be positioned by feeding to the second door hanger transfer position L3 that.

  Thus, if the moving body 22 on the side of the auxiliary conveyors 8A and 8B is sent to the second door hanger transfer position L3 where the empty door transporting traveling body 40 is waiting and positioned by the moving body positioning means 95. As shown in FIG. 17, the lifting guide rail 81 (lifting frame 80) of the door transfer traveling body lifting device 76 is raised to the ascending limit position by the cylinder unit 79. As a result, as shown in FIG. 14, in the ascending process of the door conveying traveling body 40 on the lifting guide rail 81, the moving body 22 at the second door hanger transfer position L3 of the auxiliary conveyors 8A and 8B on the left and right sides is provided. The suspended door hangers 9R and 9L are transferred to the hanger support portions 48a and 48b on the left and right sides of the door conveyance traveling body 40. That is, as shown in FIG. 9, the fitting parts (vertical pins) 53 of the hanger support parts 48a, 48b are fitted parts (vertical through holes) 19 of the supported parts 15a, 15b on the door hangers 9R, 9L side. The support members 51a and 51b of the hanger support portions 48a and 48b lift the supported portions 15a and 15b on the door hangers 9R and 9L side. At this time, the contact portions (horizontal shaft rollers) 52a and 52b provided side by side with the hanger support portions 48a and 48b contact the contact surfaces 20a on the door hangers 9R and 9L, and the door hangers 9R and 9L tilt inward. Therefore, the door hangers 9R and 9L are transferred to the hanger support portions 48a and 48b on the left and right sides of the door transport traveling body 40 in a state where the hanging frame 10 hangs substantially vertically.

  As shown in FIGS. 14 and 17, the door transport traveling body 40 in a state where the door hangers 9R and 9L are suspended by the left and right hanger support portions 48a and 48b as described above is provided with the lifting guide rail 81 (the lifting frame). 80) a pair of left and right abutting so as to cover the guide rollers 16a and 16b located on the inner side among the guide rollers 16a and 16b on both the left and right sides of the hanging door hangers 9R and 9L. The guide rails 98a and 98b can be installed.

  When the transfer of the door hangers 9R and 9L supporting the doors DR and DL from the moving body 22 of the auxiliary conveyors 8A and 8B to the door transport traveling body 40 of the door transport device 6 is completed in the door removal work area 3. The door transporting traveling body 40 on the lifting guide rail 81 at the ascending limit position of the door transporting traveling body lifting / lowering device 76 releases the positioning by the door transporting traveling body positioning means 83, and then the lower side is driven by the driving means 82. And is driven to the outfitting work area 5 and the doors DR and DL for one vehicle body are sent to the outfitting work area 5 through the door hangers 9R and 9L supported by the single door transporting traveling body 40. Can do. On the other hand, the transporting body 22 on the side of the auxiliary conveyors 8A and 8B that has been emptied is allowed to stand by at the second door hanger transfer position L3 as it is, and then the door transporting travel body 40 that is sent to the door transporting travel body lifting device 76. Then, as will be described later, empty door hangers 9R and 9L are received.

  In the door installation work area 4, the door conveyance traveling body 40 of the door conveyance device 6 that has received the empty door hangers 9R, 9L from the moving bodies 22 of the auxiliary conveyors 8A, 8B moves up and down as described above. An empty door hanger 9R, 9L can be fed into the door removal work area 3 by sending it to the lower side from the lifting guide rail 81 at the ascending limit position of the device 76 and running to the door removal work area 3. The empty door hangers 9R and 9L are transferred to the empty moving body 22 on the side of the auxiliary conveyors 8A and 8B waiting at the second door hanger transfer position L3 as described above. On the other hand, the transporting body 22 on the side of the auxiliary conveyors 8A and 8B that has been emptied is allowed to stand by at the second door hanger transfer position L3 as it is, and then the door transporting travel body 40 that is sent to the door transporting travel body lifting device 76. As described later, the door hangers 9R and 9L supporting the doors DR and DL are received.

  Transfer of empty door hangers 9R, 9L from the door conveyance traveling body 40 of the door conveyance device 6 in the door removal work area 3 to the moving body 22 of the auxiliary conveyors 8A, 8B, or the door conveyance device in the door installation work area 4 The transfer of the door hangers 9R and 9L supporting the doors DR and DL from the door transport traveling body 40 to the moving body 22 of the auxiliary conveyors 8A and 8B can be performed in the reverse manner to the above. That is, the door transporting traveling body 40 that supports the door hangers 9R and 9L on both the left and right sides is fixed on the lifting guide rail 81 that is locked by the locking means 84 at the upper limit position of the door transporting traveling body lifting device 76. In the state where it is fed by the driving means 82 and is positioned by the door conveying traveling body positioning means 83, it is made to stand by at the same level as the traveling level in the door conveying line.

  On the other hand, the empty moving body 22 on the side of the auxiliary conveyors 8A and 8B is sent to the second door hanger transfer position L3 by the driving means 94 as described above. At this time, as shown in FIG. The hanger hanging portions 29a and 29b (hook members 31) of the body 22 are waiting on the lifting guide rail 81 at the ascending limit position of the door conveying traveling body elevating device 76 as described above. Since the space between the hung portions 14a and 14b of the door hangers 9R and 9L supported on the left and right sides of the 40 and the horizontal members 13a and 13b below the moving hangers 40 is moved, The door hangers 9R, 9L supported on the left and right sides of the door and the empty moving body 22 do not interfere with each other. Accordingly, the empty moving body 22 on the side of the auxiliary conveyors 8A and 8B is first sent to the second door hanger transfer position L3 for waiting, and the door conveying traveling body 40 of the door conveying device 6 is later moved to the door conveying traveling body. It can also be fed onto the raising / lowering guide rail 81 in the ascending limit position of the raising / lowering device 76. The empty moving body 22 sent to the second door hanger transfer position L3 is positioned at a fixed position by the moving body positioning means 95 as described above, and a stopper attached to the hanger hanging portions 29a and 29b. 32a and 32b are switched by the cam rail 37 to the release positions indicated by solid lines in FIGS. 4B and 5C.

  As described above, the empty conveyor 22 on the side of the auxiliary conveyors 8A and 8B is positioned at the fixed position of the second door hanger transfer position L3, and the door hanger 9R and 9L are supported on both the left and right sides. If the transporting traveling body 40 is positioned at a fixed position on the lifting guide rail 81 at the ascending limit position of the door transporting traveling body lifting device 76, the lifting guide rail 81 of the door transporting traveling body lifting device 76 is moved forward. When the door transporting traveling body 40 on the lifting guide rail 81 is lowered, the door transporting traveling body 40 is moved to the left and right sides of the door transporting traveling body 40 as shown in FIG. The suspended parts 14a and 14b (shaft body 17) of the supported door hangers 9R and 9L are fitted to the hanger hanging parts 29a and 29b (hook member 31) of the empty moving body 22, The hanger support portions 48a and 48b on the door transport traveling body 40 side move downwardly away from the supported portions 15a and 15b on the door hanger 9R and 9L side, and the left and right sides of the door transport travel body 40 on the door transport device 6 side are left and right. The door hangers 9R, 9L supported on both sides are transferred to the moving body 22 on the auxiliary conveyors 8A, 8B side.

  When the transfer of the empty door hangers 9R, 9L from the door conveying traveling body 40 of the door conveying device 6 to the moving body 22 of the auxiliary conveyors 8A, 8B is completed in the door removal work area 3, the door conveying traveling body is completed. The traveling body 40 for door conveyance on the raising / lowering guide rail 81 in the lower limit position of the raising / lowering device 76 waits as it is, and then moves to the second conveyor hanger transfer position L3 on the side of the auxiliary conveyors 8A and 8B. From the body 22, the door hangers 9R and 9L that support the doors DR and DL as described above are received. The moving body 22 on the side of the auxiliary conveyors 8A and 8B having received the empty door hangers 9R and 9L is released by the driving means 94 after being released from the positioning by the moving body positioning means 95, and is transferred to the first door hanger transfer position. At L2, it is transferred to the lifting devices 7A and 7B, and the empty door hangers 9R and 9L can be sent to the floor side door loading position together with the moving body 22.

  In the door installation work area 4, when the transfer of the door hangers 9R and 9L supporting the doors DR and DL from the door conveyance traveling body 40 of the door conveyance device 6 to the moving body 22 of the auxiliary conveyors 8A and 8B is completed. The door conveying traveling body 40 on the lifting guide rail 81 at the lower limit position of the door conveying traveling body elevating device 76 waits as it is, and then is sent to the second door hanger transfer position L3. As described above, empty door hangers 9R and 9L are received from the moving body 22 on the 8A and 8B side. The moving bodies 22 on the side of the auxiliary conveyors 8A and 8B that have received the door hangers 9R and 9L that support the doors DR and DL are sent out to the lower side as described above, and are moved up and down at the first door hanger transfer position L2. 7B, the door hangers 9R and 9L supporting the doors DR and DL together with the moving body 22 can be sent to the floor-side door lowering position.

  The moving bodies 22 of the auxiliary conveyors 8A and 8B travel from the first door hanger transfer position L2 adjacent to the elevating devices 7A and 7B to the door conveying travel on the elevating guide rail 81 of the door conveying traveling body elevating device 76. A horizontal U-turn is made in the travel route to the second door hanger transfer position L3 where the door hangers 9R, 9L are transferred to and from the body 40, and the travel direction at the first door hanger transfer position L2 and the second direction. Since the travel directions at the door hanger transfer position L3 are opposite to each other, the door hanger 9R for the right door and the left door door hanger 9R are used at the door loading / unloading position L1, which is the lower limit position of the elevating devices 7A and 7B. The door hanger 9L supports the doors DR and DL on the inner side facing each other, whereas the second door hanger transfer position L3 supports the door hanger 9R for the right door and the door hanger 9L. And the hanger 9L is back-to-back state, both door hanger 9R, a state where the door DR, DL are supported outside of 9L. Therefore, when the door hangers 9R and 9L are transferred to the left and right hanger support portions 48a and 48b of the door transport travel body 40 located between the door hangers 9R and 9L, the door transport travel bodies The doors DR and DL are positioned outside the door hangers 9R and 9L supported on the left and right sides of the door 40. Moreover, as described above, the doors DR and DL have the inner surfaces of the door hangers 9R and 9L. Since it is supported so as to face outward as viewed from 9L, it is possible to easily perform the outfitting work mainly on the inner surfaces of the doors DR and DL conveyed by the door conveying traveling body 40.

  Further, the door hangers 9R and 9L are supported by the door hanger support portions 48a and 48b on the left and right sides of the door transport traveling body 40 only by the supported portions 15a and 15b at the upper ends thereof, and hang substantially vertically. In other words, in other words, there is no support portion for supporting or positioning the lower ends of the door hangers 9R, 9L on the door conveyance traveling body 40 side, so as shown in FIG. The floor surface, which can be used for passage of maintenance work or parts carts moving on the floor surface, between the door hangers 9R, 9L supported on the left and right sides of the body 40 and below the door transport traveling body 40; A continuous space can be secured.

  The door transportation facility of the present invention is a vehicle manufacturing line, in which the doors removed from the left and right sides of the painted vehicle body on the vehicle body transportation path are sent to the equipment line to which various parts are attached, and the finished door is again on the body transportation line. It can be used as door transport equipment for assembling on both the left and right sides of the original car body.

B Car body DR, DL Door L1 Door loading / unloading position L2 First door hanger transfer position L3 Second door hanger transfer position 1 Door removal vehicle transfer line 2 Door installation vehicle transfer line 3 Door removal work area 4 Door installation Work area 5 Outfitting work area 6 Door transfer device 7A, 7B Lifting device 8A, 8B Auxiliary conveyor 9R, 9L Door hanger 10 Hanging frame 10a Lower end longitudinal frame 11 Door bottom support 12 Door hinge support 14a, 14b Suspended Lower part 15a, 15b Supported part 16a, 16b Guide roller 17 Shaft body 18 A pair of front and rear support plates 19 Fit part 20 Guide member 20a Abutted surface 21, 39 Guide rail 22 Moving body 23, 41, 63, 82 94 Drive means 24, 42 Load bars 25a-25d, 43a- 3d trolley 29a, 29b Door hanger suspension part 31 Hook member 32a, 32b Stopper 37 Stopper control cam rail 38 Positioned sandwiched part 40 Door transport traveling body 48a, 48b Door hanger support part 50 Suspension frame 51a, 51b Support member 52a , 52b Contact portion 57 Lifting body 58, 81 Lifting guide rail 59 Lifting drive means 64, 95 Moving body positioning means 65 Oscillation prevention means 66, 84 Locking means 71a, 71b Guide rail for steadying movement 76 Lifting of traveling body for door conveyance Device 77 Mounting frame 78a, 78b Elevating guide means 79 Cylinder unit 80 Elevating frame 83 Door transfer traveling body positioning means 96a, 96b Door hanger steadying member 97 Upper bifurcated portion

Claims (13)

  A door conveyance line is provided above the floor-side vehicle conveyance line, and door hanger support parts are provided on both the left and right sides of the door conveyance traveling body that runs on the door conveyance line, and on both the left and right sides of the vehicle conveyance line. A door provided with a pair of left and right door hanger loading / unloading means for transferring the door hanger between the floor side door loading / unloading position and the left and right door hanger support portions of the door transport traveling body. In the transport facility, each door hanger loading / unloading means is composed of lifting devices provided on the left and right sides of the vehicle body transport line and an auxiliary conveyor that circulates horizontally between the lifting device and the door transport line. The apparatus raises and lowers the door hanger between the upper first door hanger transfer position for transferring the door hanger between the auxiliary conveyor and the floor side door loading / unloading position. The auxiliary conveyor conveys the door hanger between the first door hanger transfer position and the second door hanger transfer position on the left and right sides of the door conveyance line, and the first door hanger transfer position includes First transfer means for transferring a door hanger between the lifting device and the auxiliary conveyor is provided, and the second door hanger transfer position is provided with each door hanger on both the left and right sides of the auxiliary conveyor and the door conveyance traveling body. A door transfer facility provided with second transfer means for transferring a door hanger between the support portion and the support portion.   The auxiliary conveyor includes a movable body having a door hanger hanging portion at a lower end, a guide rail that supports the movable body so that the movable body can travel, and a driving unit that travels the movable body. A hanging frame provided at the upper end with a suspended portion detachably attached to the hanging portion of the door hanger, and a door support provided on one side of the hanging frame, and suspended from the moving body. The door conveyance equipment according to claim 1, wherein the hanging frame of the door hanger is configured to hang substantially vertically.   The suspended portion of the door hanger is configured by laying a shaft parallel to the traveling direction of the movable body between a pair of front and rear support plates, and the door hanger suspended portion of the movable body is configured by the pair of front and rear The door conveying equipment according to claim 2, comprising a hook member that is open on the upper side for receiving the shaft body between the support plates, and a stopper that opens and closes the upper opening portion of the hook member.   The stopper is biased and held at a closed position that closes the upper open portion of the hook member, and the stopper is placed at the door hanger transfer position where the door hanger is transferred between the stopper and the hook member. The door conveyance equipment according to claim 3, wherein a cam rail for switching against an urging force is provided at an opening position for opening the upper opening of the door.   The auxiliary conveyor includes a movable body having a door hanger hanging portion at a lower end, a guide rail that supports the movable body so that the movable body can travel, and a driving unit that causes the movable body to travel. The divided part of the guide rail of the conveyor is used as an elevating guide rail, and is driven up and down between an ascending position connected to the guide rail of the auxiliary conveyor and a descending position corresponding to the floor door loading / unloading position. The movable body supported by a lifting guide rail and a door hanger supported by the movable body are configured to move up and down integrally, and the first transfer means includes the lifting device. The door conveyance equipment of any one of -4.   The door hanger is suspended from the lower end of the moving body of the auxiliary conveyor so as to be swingable in the lateral direction. When the door hanger and the moving body are lowered to the lowered position by the lifting guide rail of the lifting device. The door conveyance facility according to claim 5, wherein a door hanger steadying member into which a lower end portion of the door hanger is fitted is disposed on the floor side.   The moving body positioning means which positions the moving body of the auxiliary conveyor supported by the said raising / lowering guide rail in a fixed position is provided in the raising / lowering body which supports the raising / lowering guide rail of the said raising / lowering apparatus. The described door transport equipment.   The door hanger is suspended from the lower end of the moving body of the auxiliary conveyor so as to be swingable in the lateral direction. The auxiliary conveyor supported by the lifting guide rail is supported by the lifting body that supports the lifting guide rail of the lifting device. The door conveyance facility according to any one of claims 5 to 7, further comprising swing preventing means for preventing the door hanger suspended from the movable body from swinging in the lateral direction.   The swing prevention means is composed of a pair of left and right guide rails arranged on the left and right sides of the door hanger, and the door hanger has a left and right side rolling on the lower side of the pair of left and right guide rails. The door conveyance facility according to claim 8, wherein the pair of guide rollers are pivotally supported.   The door hanger is provided with a supported portion that protrudes in a cantilevered manner from the upper side to the door hanger, and the door hanger support portions on the left and right sides of the door transport traveling body are connected to the supported portion on the door hanger side. A support member having a fitting portion that is freely detachable in the vertical direction with respect to the provided fitted portion, and a lower portion of the door hanger supported by the support member swings toward the door conveyance traveling body. The door conveyance equipment of any one of Claims 1-9 provided with the contact part which contact | abuts and contacts the side surface of the said door hanger.   The door hanger has a suspended portion that engages and engages in a vertical direction with respect to a door hanger hanging portion provided on a moving body of the auxiliary conveyor at the upper end, and on both the left and right sides of the door conveyance traveling body. A supported portion that is supported by being fitted in a vertical direction with respect to each door hanger support portion is provided to protrude laterally below the suspended portion, and the second transfer means is an auxiliary conveyor. A lower position where the door hanger support part of the traveling body for door transportation is separated downward from the supported part of the door hanger suspended from the suspended part of the door hanger of the movable body, and the door The traveling body for door transportation is placed between the suspended part of the door hanger supported by the door hanger support part of the transporting traveling body and the upper position separated from the door hanger hanging part of the moving body of the auxiliary conveyor. Elevating and lowering traveling body for door conveyance It is constituted by the door transport facility according to any one of claims 1 to 10.   The door conveying traveling body elevating device is configured to drive a part of the guide rail that supports and guides the door conveying traveling body as an elevating guide rail to be moved up and down, and the door conveying traveling supported by the elevating guide rail. Auxiliary conveyors on both the left and right sides are provided with door conveying traveling body positioning means for positioning the body at a fixed position, and the door hangers are transferred between the door conveying traveling bodies supported by the lifting guide rail, The door conveyance facility according to claim 11, further comprising a moving body positioning unit that positions the moving body including the door hanger hanging portion at a fixed position.   At the door loading / unloading position on the floor side, the door is supported on the side of the door hanger facing the vehicle body conveyance line, and the inner side surface of the door faces the vehicle body side, and both left and right sides of the door transportation traveling body When the door hanger is transferred to the door hanger support portion, the door is supported outside the door hangers rather than between the door hangers on both sides, and the door inner surface is positioned outward. The door conveyance equipment of 1-12.

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