JP5046510B2 - Transport device - Google Patents

Description

  The present invention relates to an apparatus for transporting a transported object held by a traveling body that moves along a transport rail arranged continuously on a floor, and more particularly to an apparatus for transporting in a three-dimensional direction.

  There is a hanger conveyor as a general transfer device for machine parts and the like in an assembly factory (see Patent Document 1). This type of conveyor is equipped with a transport rail and drive chain near the ceiling of a factory for assembly and processing, such as a painting factory, and places a transported object on a hanger-like traveling body suspended from the transport rail. It was something to do. And when conveying a conveyed product to a three-dimensional direction, it will be by adjusting the height of the conveyance rail arrange | positioned on a ceiling, etc., and the installation of the said conveyance rail was not easy. In particular, in the painting factory, there is a problem that fine dust or dust falls when the traveling body suspended from the rail installed on the ceiling moves, and this adheres to the painted surface, which improves the quality. It has been desired to provide a conveying device that contributes.

  Therefore, the applicant has installed a transport rail on the floor and developed a traveling body that can move along the transport rail, thereby realizing a transport device that eliminates the need to install the transport rail at a high place in the assembly plant. (See Patent Document 2). This technology is composed of a wheel that rolls on the transport rail, a travel body that is continuous with the wheel, a transport tray support that is erected on the travel body, and a transport tray that is provided at the tip of the support. The conveyed product was loaded or held on the conveyance tray and conveyed by the traveling main body traveling.

  However, since the transport apparatus has a structure in which a transport object is stacked or held on the tip of a transport tray column fixedly installed on the traveling body, when performing three-dimensional transport, the transport apparatus is inclined. The traveling body moves along the transport rail, and the transport tray support column is inclined. Therefore, in the vicinity of the boundary where the transport direction transitions from the horizontal direction to the upward inclination direction, when the preceding traveling body reaches the upward inclination and starts the inclination, the following traveling body is still in the horizontal state. The transport trays of both the front and rear traveling bodies approach each other, and there is a possibility that some of the transported objects protruding outward from the transport tray come into contact with each other. This also means that there is a risk of contact between the traveling body moving in the horizontal direction and the subsequent traveling body moving in the downward inclination direction even in the vicinity of the boundary where the transport direction shifts from the downward inclination direction to the horizontal direction. was there. At the same time, in both cases of upward inclination and downward inclination, the conveyance tray support column is inclined, so that the loading surface of the conveyance tray is inclined obliquely, causing the collapse of the load to be conveyed. It was the cause.

In order to solve the above problems, the inventor of the present application provides a swinging body in the traveling body, and the rail that regulates the posture of the swinging body causes the swinging body to be horizontal even when the traveling body is inclined. (See Patent Document 3 and Patent Document 4).
Japanese Utility Model Publication No. 4-7275 (FIG. 1) Noto 3086461 Japanese Patent Application No. 2005-221914 Japanese Patent Application No. 2005-244399

  The conveying device is configured such that one end of the oscillating body is pivotally supported and the oscillating end can be moved up and down in order to cope with the upward inclination and the downward inclination, and moves in the upward inclination direction. Is configured to raise the swing end and to lower the swing end when moving in the downward tilt direction (see Patent Document 3 and Patent Document 4).

  However, even when moving in the horizontal direction, the rocking end of the rocking body is not fixedly supported, so a rail is required to keep the rocking body horizontal, and the rocking body is rocked in all the routes to be transported. A rail that supports the moving end had to be provided (see Patent Documents 3 and 4). In addition, in some of the above inventions, there is a configuration in which the rocking body can be placed on the bottom surface of the rocking body installation space provided in the traveling body so that the rail is not required when traveling in the horizontal direction (patent) Reference 4), the oscillator has a possibility of being tilted by the action of an external force.

  The present invention has been made in view of the above-mentioned points. The object of the present invention is to enable three-dimensional transport while keeping the transport tray horizontal, and in the case of transport in the horizontal direction. It is another object of the present invention to provide a transport device that can stabilize the transport tray without using rails.

Therefore, the present invention provides a transport apparatus including a transport rail that forms a transport path on a floor, a traveling body that moves while being restricted in a track by the transport rail, and a transport tray that is provided on the traveling body. The traveling body includes a main body having a wheel that rolls along the transport rail, a rotating arm that is supported at one end by the main body and is rotatably provided, and a vicinity of the tip of the rotating arm. It includes a hook portion formed by providing possible stop, and the times post for the carrier tray made by the carrier tray is connected to the upper end while being erected perpendicularly to the longitudinal direction of the movement arm, the hook portion An oscillating member provided on the main body of the traveling body so as to be oscillatable, and a latching recess provided on the oscillating side end of the oscillating member, with respect to the longitudinal direction of the rotating arm. Near the tip of the pivoting arm. Provided, in the section to rotate the rotating arm of the conveying path formed by the conveying rails, it provided the regulating rail for regulating the height of the operating portion of the rotating arm, swinging of the hook portion When the swinging end approaches the operating portion of the rotating arm by swinging a member, the latching concave portion can partially latch the operating portion. Is the gist.

According to the above configuration, when the traveling body travels in the horizontal direction by latching the tip of the pivot arm, the pivot arm can be kept horizontal without being supported by the rail. . When the traveling body travels uphill or downhill, the regulation rail regulates the operating portion provided at the tip of the rotating arm to move up and down, and the height of the tip of the rotating arm is regulated rail. Since the angle of the longitudinal direction of the rotating arm can be adjusted according to the inclination angle of the upward inclination or the downward inclination, the longitudinal direction of the rotational arm can be kept horizontal. Further, when the pivot arm is to be pivoted, the latch of the pivot arm can be released by pivoting the pivot member, and the pivot arm can be released by releasing the latch. Can be freely rotated. Therefore, by providing a rail that can partially swing the swinging member near the boundary where the traveling body shifts from the horizontal direction to the upward slope or the downward slope, the swinging member can be operated, and the transport path Therefore, it is not necessary to provide a rail for swinging the swing member.

Further, the invention is characterized in that the swinging member of the latching portion is formed in a substantially L shape having a bent portion near the center, is pivotally supported by the bent portion, and the bent portion is the boundary. Are arranged with a swinging member having one side as a swinging side and the other as a working side, the swinging side facing upward from the traveling body, and the working side facing backward in the traveling direction of the traveling body, It is possible to configure the swing side tip to swing by operating the working side tip in the vertical direction. With the above-described configuration, by moving up and down the tip of the oscillating member that is oriented in the horizontal direction, the tip that is oriented in the vertical direction oscillates in the front-rear direction around the shaft support portion. By providing a latching recess at the tip of the swing arm, the tip of the rotating arm can be hooked and released by the swing.

In addition, the present invention provides a transport apparatus including a transport rail that forms a transport path on a floor, a traveling body that moves while being restricted in a track by the transport rail, and a transport tray provided on the traveling body. The traveling body includes a main body having a wheel that rolls on the reference surface of the transport rail, a rotating arm that is rotatably supported with one end supported by the main body, and the vicinity of the tip of the rotating arm. And a transport tray column having the transport tray connected to the upper end while standing upright with respect to the longitudinal direction of the arm. An actuating portion projecting laterally with respect to the longitudinal direction is provided in the vicinity of the tip of the rotating arm, and the hooking portion is formed in a substantially L shape having a bent portion in the vicinity of the center. Supported by the main body, one side swings and the other acts A swinging part constituted by a swinging member configured as described above, and a locking recess provided at the swinging end of the swinging member and capable of partially locking the operating part of the rotating arm, In the conveyance path constituted by the conveyance rail, in a section where the rotation arm of the traveling body is to be rotated, a regulation rail that regulates the height of the operation unit has an appropriate interval above the conveyance rail. And a swing guide rail that guides the position of the working tip of the swing member in an appropriate section in the vicinity of the start end and the end of the regulation rail. Is also a summary.

  According to the above configuration, the rotating arm of the traveling body traveling on the upward or downward inclination keeps the longitudinal direction thereof horizontal, so that the operating portion of the rotational arm can be adjusted in height by the restriction rail. Thereby, the support | pillar which supports a conveyance tray will be maintained by the perpendicular direction. In addition, since the swinging portion swings near both ends of the regulation rail, the pivoting arm can be locked and released.

  The swing member according to the present invention is arranged such that the tip on the swing side is upward from a portion pivotally supported by the traveling body, and the tip on the working side is disposed from the pivot support portion to the rear in the traveling direction of the travel body. It can be set as a rocking member. According to such a configuration, the swing side tip can be swung back and forth by moving the working side tip in the up-down direction.

  The swing member according to the present invention is preferably a swing member having a stopper that is biased in a direction to lower the working-side tip and stops the lowering at an appropriate position. According to the above configuration, the tip of the working side is biased toward the lower limit while the downward swing is restricted by the stopper, and the working side of the swinging member is lifted against this biasing. The tip can be raised, and the position of the latching recess can be changed by swinging the swing-side tip by raising the working-side tip. Due to the change in the position of the latching recess, the tip of the pivot arm can be latched and released.

  According to the present invention, when the traveling body moves in the horizontal direction, since the latching portion latches the tip of the rotating arm, a rail that should regulate the members of the traveling body is required in addition to the transport rail. The longitudinal direction of the rotating arm can be kept horizontal. Accordingly, it is sufficient to provide an auxiliary rail only in a portion where the conveyance path is inclined upward or downward. Therefore, the rails can be easily managed and can be improved to stabilize the posture of the traveling body having the upward and downward inclination while using the existing transport rail.

  In addition, the pivoting arm is latched and released by the latching portion by the swinging of the swinging member constituting the latching portion. Therefore, the swinging of the swinging member is one that needs to be swung. A swing guide rail may be disposed at the portion. Then, if the swinging member is formed in a substantially L shape, and one side functions as the swinging side and the other functions as the working side, the working side tip can be raised and lowered if the working side tip is provided backward in the traveling direction of the traveling body. This makes it possible to swing the tip on the swing side. Furthermore, after the latch is released, the tip of the pivot arm is supported by the regulation rail, so that the state of the latch part does not affect the pivot arm, and therefore the latch part is not swung. The movement may be performed only at the timing at which the tip of the rotating member should be latched and at the timing at which the latch should be released. It is sufficient to arrange the swing guide rail only in a predetermined section after the point where the support starts or before the point where the support ends.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the outline of the transport apparatus according to the present embodiment includes a transport rail 1, a traveling body 2 that moves along the transport rail 1, and a transport tray 3 that is supported by the traveling body 2. Has been. The conveyance rail 1 is arranged with an appropriate gap between the end edges 13 and 14 with the substantially U-shaped rail constituting portions 11 and 12 facing the end edges 13 and 14. The main body 4 of the traveling body 2 has traveling wheels 41 and 42 that can be rotated about a horizontal axis at the lower portion thereof, and regulation wheels 43 and 44 that can be rotated about a vertical axis in the front-rear direction of the traveling wheels 41 and 42. The control wheels 43 and 44 of the traveling body 2 can pass through the gaps between the end edges 13 and 14 of the transport rail 1, and the travel wheels 41 and 42 are formed on the inner bottom surfaces 15 and 16 of the transport rail 1. It can roll on the surface. Therefore, the traveling body 2 is configured to be movable in a predetermined direction along the transport rail 1 while supporting the weight of the work loaded on the transport tray 3. An endless drive chain 17 is movably provided below the transport rail 1 in parallel with the transport rail 1, and the main body 4 of the traveling body 2 is locked to the drive chain 17. By being connected, a driving force is applied to the traveling body 2.

  The traveling body 2 further includes a rotating arm 5 and a latching portion 6. The rotating arm 5 has a base end 51 pivotally supported at the upper end of a support member 52 erected on the main body 4, and a distal end (free end) 53 centered on the base end 51. By rotating, the tip 53 moves up and down, and the longitudinal direction of the rotating arm 5 can form a horned state with respect to the longitudinal direction of the main body 4. The upper end of the support member 52 that supports the base end 51 of the rotating arm is bifurcated, and is mounted in the middle of both ends via slide spacers 54 and 55 around the axis of the rotating shaft 56. It can be turned. On the other hand, the distal end (free end) 53 is provided with an operating portion 57 that projects laterally with respect to the longitudinal direction of the rotating arm 5. The actuating portion 57 is provided with a single rod-like member that passes through the tip (free end) 53, and is provided with a rolling member 58 that can roll on the surface of a regulation rail 7 described later at one end. At the other end, a hooked region 59 that allows hooking by a hooking portion 6 described later is formed. In this embodiment, in the vicinity of the center of the rotating arm 5, a transport tray column 31 having an axis line perpendicular to the longitudinal direction of the rotating arm 5 is erected. The transport tray 3 is provided at the upper end of 31, and even when the rotating arm 5 rotates, the axial direction of the transport tray column 31 is orthogonal to the longitudinal direction of the rotating arm 5. When the moving arm 5 rotates, the axial direction is inclined according to the angle.

  The latching portion 6 is constituted by a plate-like swinging member 61 whose main body portion is formed in a substantially L shape, and a portion of the main body portion 4 of the traveling body 2 is located around a substantially L-shaped bent portion by a rotating shaft 62. It is pivotally supported on the side. The swinging member 61 can swing on the swinging side when an external force acts on the working side with one side serving as a working side and the other serving as a swinging side. The working-side tip is disposed from the rotation shaft 62 toward the front in the traveling direction of the traveling body 2, and the swing-side tip is disposed upward from the rotation shaft 62. The vicinity of the rocking side tip of the rocking member 61 is configured to be wider in the width direction than the other parts, and in the vicinity of the tip, of the edge near the edge, the traveling body 2 advances. A latching recess 63 that opens to the front in the direction is formed by cutting out. The latching recess 63 is configured to have a width in which the above-described latched region 59 of the pivot arm 5 can be engaged and a sufficient length in a circular direction around the pivot shaft 62. By allowing the latched area 59 to be engaged, the tip 53 of the rotating arm 5 can be latched via the latched area 59.

  A torsion coil spring 64 is mounted on the rotating shaft 62, and the torsion coil spring 64 forces the swinging direction of the swinging member 61. In other words, the torsion coil spring 64 urges the working side of the swing member 61 downward, and at the same time, urges the swing recess 63 on the swing region 59. Therefore, when an external force is not applied to the operating side, the swinging recess 63 on the swing side is biased so as to hook the hooked region 59. A stopper 65 that can contact the upper surface of the main body 4 of the traveling body 2 protrudes on the working side of the swing member 61, and a lower limit is set when the working side is lowered by the bias of the torsion coil spring 64. Has been. Further, a rolling member 66 is provided at the distal end of the working side so that it can roll along a swing guide rail 8 (described later) provided to apply an external force.

  Here, the operation modes of the rotating arm 5 and the latching portion 6 will be described. FIG. 2A shows a state in which the tip of the rotating arm 5 is hooked by the hooking portion 6. As shown in this figure, the latching recess 63 formed at the tip of the latching portion 6 is covered by the operating portion 57 provided at the tip (free end) 53 of the rotating arm 5. In this state, the position of the tip (free end) 53 of the rotating arm 5 is stabilized, and the rotation of the rotating arm 5 is restricted. At this time, the weight of the work placed on the transport tray 3 acts vertically downward along the axis of the transport tray column 31 and is supported by the rotating arm 5. The weight is decomposed into a base end 51 and a distal end (free end) 53 of the rotating arm 5, and is supported by the support member 52 vertically downward at the base end 51, and at the distal end (free end) 53. It will be supported by the latching part 6. Since these loads that are disassembled and supported are supported by the main body portion 4 of the traveling body 2 via the support member 52 and the latching portion 6, the entire weight is ultimately supported by the traveling body 2. It will be supported. In addition, in the state which the latching | locking part 6 latched the front-end | tip (free end) 53 of the rotation arm 5, since the link node comprised by the rotation arm 5 and the latching part 6 will be fixed, The tip (free end) 53 of the rotating arm 5 is fixedly hooked.

  Further, as shown in the figure, a regulation rail 7 is disposed above the transport rail 1, and this regulation rail 7 is provided at the tip (free end) 53 of the rotating arm 5. The rolling member 58 is formed in a substantially U shape having a size that allows the rolling member 58 to enter. In addition, the opening end vicinity 71 of the regulation rail 7 is provided so as to be gradually wider than the main body portion 72, and has a function of guiding the intrusion of the rolling member 58 constituting a part of the moving traveling body 2. Have. Therefore, when the traveling body 2 moves to a predetermined position along the transport rail 1, the rolling member 58 provided at the tip (free end) 53 of the rotating member 5 enters the inside of the regulation rail 7. As a result, the height of the rolling member 58 that enters the regulation rail 7 is regulated by the regulation rail 7.

  Furthermore, as shown in the figure, in a state where the rolling member 58 of the rotating arm 5 has entered the regulation rail 7, the rolling member 66 provided at the working side tip of the latching portion 6 comes into contact. Is provided with a swing guide rail 8. The swing guide rail 8 is provided so as to be stacked on the upper surface of the transport rail 1 and allows the rolling member 66 that moves above the upper surface of the transport rail 1 to abut. The swing guide rail 8 has a predetermined thickness and a flat surface portion 81 on the upper surface on which the rolling member 66 can roll, and oblique portions 82 and 83 are formed at both ends thereof. The inclined portions 82 and 83 gradually change the height of the rolling member 66, and the flat portion 81 maintains the rolling member 66 at a predetermined height (see FIG. 2B). ). As the rolling member 66 moves up and down along the swing guide rail 8, the swing member 61, which is the main body portion of the stop portion 6, swings, and is provided near the tip of the swing side. The concave portion 63 is separated from the latched region 59 around the pivot shaft 62 or pivoted in a direction in which the latched region 59 is latched.

  As described above, as shown in FIG. 2B, the height of the rolling member 58 of the rotating arm 5 is maintained in a state where it can be hooked by the hooking member 6, and the hooking portion By raising and lowering the six rolling members 66, the latching recess 63 can be latched to and released from the latched region 59 of the rotating arm 5. Therefore, in order to release the latch from the state where the latched region 59 is latched (normal horizontal running state), first, the rolling arm 5 provided at the tip (free end) 53 of the rotary arm 5 is used. The moving member 58 is allowed to enter the regulating rail 7 so that the tip (free end) 53 of the rotating arm 5 is regulated by the regulating rail 7, and then the rolling member 66 provided in the latching portion 6. Changes the height along the swing guide rail 8, that is, by raising the rolling member 66, the swing member 61 is swung to lock the latching recess 63 of the latching portion 6. It is removed from the region 59. The swing member 61 at this time is forced to swing against the biasing force of the torsion coil spring 64.

  Conversely, when the latching area 59 is latched by the latching recess 63, the rolling member 58 of the rotating arm 5 is regulated by the regulation rail 7, and the latching area 59 is used for latching. The height is such that the latch 63 can be latched. In this state, the rolling member 66 of the latch 6 is lowered to swing the latch 6 so that the latch recess 63 is covered. It is moved toward the stop region 59. When the hooked region 59 is engaged with the hooking recess 63, the tip 53 of the rotating arm 5 is hooked. Note that the swinging of the latching portion 6 at this time continues until the rolling member 66 descends along the oblique portion 83 of the swing guide rail 8 and finally leaves the swing guide rail 8. However, at this time, as the restriction by the swing guide rail 8 is released by the biasing of the torsion coil spring 64 provided on the rotating shaft 62 of the latching portion 6, the working side of the latching portion 6 is lowered. As a result, the tip of the swinging side of the hooking portion 6 swings toward the hooked region 59.

  As described above, the latching of the tip 53 of the rotating arm 5 by the latching part 6 is released by the swinging of the latching part 6, but as shown in FIG. Accordingly, the pivot arm 5 is pivotable about the base end 51. At this time, as shown in the figure, the hooked region 59 protruding from the tip (free end) 53 of the rotating arm 5 also moves in an arc shape, but the hooking portion 6 sufficiently swings, that is, The tip end portion on the swing side has a sufficient gap from the hooked region 59 so that the tip portion does not hinder the movement of the hooked region 59. However, when the tip (free end) 53 of the rotating arm 5 is rotated downward, the hooked region 59 protruding from the rotating arm 5 is separated from the tip of the swinging portion 6 on the swing side. The rotation is allowed until it comes into contact with the latching body (swinging member) 61. In addition, when it is necessary to bend the front-end | tip (free end) 53 of the rotation arm 5 greatly, the position which installs the said rotation arm 5 is provided extremely upwards from the main-body part 4 of the traveling body 2. Thus, the rotating arm 5 can be largely rotated while avoiding contact with the latching portion 6.

  Next, the state after the latching of the rotating arm 5 by the latching part 6 will be described. As described above, the latching of the rotating arm 5 by the latching portion 6 is easily released by the swinging of the latching portion 6 by the swinging guide rail 8. When the latch is released, the pivot arm 5 is rotated so as to have a predetermined angle as will be described later. The latch portion 6 is continuously moved by the swing guide rail 8. The rocking state is not maintained.

  That is, as shown in FIG. 4 (a), by sufficiently raising the hooked region 59 so as not to interfere with the hooking portion 6, the rotating arm 5 can be moved in any state. There will be no contact. Therefore, even if the latching recess 63 at the tip of the latching portion 6 is returned to the original position, the latched region 59 no longer exists at the position where it is latched by the latching recess 63. . Therefore, as shown in FIG. 3B, the swinging portion 6 is swung by the swing guide rail 8 at a position where the traveling body 2 moves forward until the tip (free end) 53 of the rotating arm 5 is sufficiently raised. The movement is terminated, and the rolling member 66 provided at the working side tip of the latching portion 6 is lowered. In this way, the restriction of the rolling member 66 by the swing guide rail 8 is completed because the latching portion 6 needs to be pivoted when the latched region 59 is latched and released. In other sections, there is no influence on the traveling body 2 or the rotating arm 5 regardless of whether it moves in the horizontal direction or in the inclined direction. Because. When the restriction of the latching portion 6 by the swing guide rail 8 is released, the posture is restored by the urging of the torsion coil spring 64 and the swinging portion is stopped by the stopper 65. Is a stable posture.

  In contrast to the above, the rolling member 58 of the rotating arm 5 may be restricted downward. In this case, as shown in FIG. 5A, the rolling member 58 guided by the regulation rail 7 is lowered. At this time, the hooked region 59 of the tip (free end) 53 of the rotating arm 5 is sufficiently lowered from the tip of the hooking portion 6 where the hooking recess 63 is provided. And when the latching | locking part 6 is restored | restored to the original state, as shown in FIG.5 (b), the to-be-latched area | region 59 does not contact the latching | locking part 6, but the front-end | tip ( The free end 53 is maintained at a predetermined height by the regulation rail 7. Note that, as shown in the figure, the slope of the swinging side portion of the latching portion 6 in the restored state is slightly abrupt, but the latching region provided at the tip (free end) 53 of the lowered rotating arm 5. The width dimension of the swinging side portion of the latching portion 6 is adjusted so as not to contact the latching portion 6.

  In this way, when the latching portion 6 returns to the original state and the rotating arm 5 can freely rotate, the traveling body 2 traveling along the transport rail 1 is traveling itself. 1, and the position of the tip of the rotating arm 5 (that is, the angle of the rotating arm 5) is restricted by the restriction rail 7. When the pivot arm 5 is again latched by the latch portion 6, first, the restricting portion 6 is swung so that the hooked region 59 of the pivot arm 5 collides with the swing-side tip of the latch portion 6. When the tip (free end) 53 of the rotating arm 5 is raised, it is lowered, and when it is lowered, it is raised so that it is substantially the same height as the latching recess 63. (See FIG. 2 (b)). The restriction of the distal end (free end) 53 of the rotating arm 5 is performed by guiding the position of the rolling member 58 of the rotating arm 5 by the restriction rail 7. After that, by releasing the restriction of the rolling member 66 by the swing guide rail 8, the swing member 61 swings and the latching recess 63 latches the latched region 59 of the rotating arm 5. (See FIG. 2A). After the latching by the latching part 6 is completed, the rolling member 58 of the pivoting arm 5 is detached from the regulation rail 7 so that the transport tray 3 is supported by the pivoting arm 5 and the latching part 6. The traveling body 2 travels while being restricted only by the transport rail 1.

  Next, the state in the case where the traveling body 2 moves along an upward slope or a downward slope will be described. FIG. 6 shows a state in which the traveling body 2 moves along the upward slope. As shown in this figure, the regulation rail 7 is provided in the entire area 1a in which the transport rail 1 is inclined and in the switching section between the horizontal state and the inclined state (referred to as curved portions) 1b and 1c. On the other hand, the swing guide rail 8 is not provided in an area where the transport rail 1 is horizontal and inclined, and is provided only in the vicinity of the curved portions 1b and 1c. This is because, as described above, the swing guide rail 8 has the purpose of swinging the latching portion 6 to latch and release the rotating arm 5.

  Here, the regulation rail 7 and the swing guide rail 8 are both connected to the transport rail 1 and their positions are fixed. When the traveling body 2 moves along the transport rail 1, first, the distal end of the rotating arm 5 is regulated by the regulation rail 7, and further, the traveling body 2 moves forward, so that the latching portion 6. Is restricted by the swing guide rail 8. The operation modes of the members 5 and 6 by the rails 7 and 8 are as described above, but the release of the rotation of the rotation arm 5 by the engagement portion 6 is performed by the rotation arm 5 by the restriction rail 7. Since it is necessary to be at the time when the regulation is sure, the vicinity of the tip 71 of the regulation rail 7 is disposed in front (backward) of the swing guide rail 8. Further, after the latching portion 6 releases the latching rail 7, the distance from the transporting rail 1 is increased because the pivoting arm 5 is sufficiently pivoted in the upward inclination of the transporting rail 1. (So that the tip of the rotating arm 5 can be raised sufficiently). That is, as is clear from the aspect of the traveling body 2 that moves on the inclined portion in the figure, the longitudinal direction of the rotating arm 5 is increased by increasing the distance from the transport rail 1 to the regulating rail (see FIG. 3). Is in a horned state relative to the longitudinal direction of the traveling body 2, but the rotating arm 5 is in a horned state by an amount corresponding to the inclination angle of the traveling body 2. This is because the moving arm 5 is in a horizontal state.

  Thus, in the vicinity of the upper end 1c of the upwardly inclined conveying rail 1, the tip 53 of the rotating arm 5 is again hooked by the hook 6 so that the hooking portion 6 is hooked at a position where the posture of the traveling body 2 is horizontal. The part 6 is swung again so that the tip (free end) 53 of the rotating arm 5 by the hook 6 can be hooked. For that purpose, the swing guide rail 8 is arranged from immediately before the posture of the traveling body 2 becomes horizontal, and the swinging portion 6 starts to swing. On the other hand, with respect to the rotating arm 5, as the posture of the traveling body 2 gradually changes horizontally, the height of the tip (free end) 53 of the rotating arm 5 is lowered, so The distance from the rail 1 is arranged so as to gradually shorten. As a result, the rolling member 58 of the rotating arm 5 is regulated by the regulation rail 7 after the position where the latching part 6 can sufficiently swing, so that the height of the latched area 59 is increased. It adjusts to the same extent as the recessed part 63 for latching (refer FIG.2 (b)). After that, the rolling member 66 of the latching portion 6 is detached from the swing guide rail 8 to complete the latching of the latched region 59 by the latching recess 93 of the latching portion 6. The position at which the restriction by the restriction rail 7 with respect to the front end (free end) 53 of 5 becomes unnecessary is set as the end position of the restriction rail 7 (see FIG. 2A).

  FIG. 7 shows a state of the transport rail 1, the regulation rail 7 and the swing guide rail 8 in the downward inclination. As shown in this figure, even in the downward inclination, the regulation rail 7 is provided in the entire region 1a and the curved portions 1b and 1c where the conveyance rail 1 is inclined, while the swing guide rail 8 is provided with the curved portions 1b and 1c. It is provided only in the vicinity. Here, in the downward inclination, the regulation rail 7 is provided so as to approach the conveyance rail 1 in the section 1 a where the conveyance rail 1 is inclined. Thus, by providing the regulation rail 7 close to the transport rail 1, the tip (free end) 53 of the rotating arm 5 is lowered (see FIG. 5), and this causes the traveling body 2 to be tilted. Therefore, the longitudinal direction of the rotating arm 5 can be kept horizontal.

  Note that, in the curved portions 1b and 1c of the transport rail 1, since the posture of the traveling body 2 is a section in which the posture changes from the horizontal state to the inclined state, or from the inclined state to the horizontal state, the transport rail 1 and the regulation rail The distance to 7 is arranged so as to change gradually. Further, since the hooking portion 6 hooks and releases the tip (free end) 53 of the rotating arm 5 at the bending portions 1b and 1c, the swing guide rail 8 is provided only in the section. It is.

  Since the present embodiment is as described above, only the transport rail 1 is provided in the section where the posture of the traveling body 2 is maintained horizontal, and the regulation rail 7 and the swing guide rail 8 are not necessary. Therefore, it is possible to change uphill or downhill conveyance to a favorable environment while using the already installed conveyance rail 1. Further, in the movement of the traveling body 2 along the upward or downward inclination, the swinging portion 8 may be provided in a part where the posture of the traveling body 2 changes, and the swing guide is provided in the entire area of the inclined section. There is no need to provide the rail 8.

  In addition, although description about embodiment is as above, various aspects can be taken in the range which does not deviate from the meaning of this invention. For example, in the above-described embodiment, the latching portion 6 latches the tip (free end) 53 of the rotation arm 5 to stop the rotation of the rotation arm 5 and the tip (free end). 53 is supported. The latching portion 6 is configured to vary the position of the latching recess 63 at the tip of the swinging side by swinging by the swinging member 61. It operates when passing. Therefore, an electromagnetic switch is provided in place of the swing guide rail 8 so that when the traveling body 2 reaches a predetermined area, a driving device such as a motor is turned on or off to swing the latching portion. Accordingly, the latching by the latching portion and the release thereof can be achieved without the rocking by the rocking member. For convenience of explanation, the transport tray column 31 is erected near the center of the rotating arm 5 (FIG. 1). Since the load applied to the distal end (free end) 53 of the rotating arm 5 can be reduced by being provided close to the base end 51 (FIG. 2), the standing position can be changed as appropriate.

It is a perspective view which shows embodiment of this invention. (A) is explanatory drawing of the state by which the rotation arm front-end | tip was latched by the latching part, (b) is explanatory drawing of the state by which the rotation arm front-end | tip was supported by the control rail. It is explanatory drawing which shows the state which a rotation arm rotates. It is explanatory drawing which shows the relationship between a rotation arm and a latching | locking part. It is explanatory drawing which shows the relationship between a rotation arm and a latching | locking part. It is explanatory drawing which shows the relationship between a rotation arm and a latching part when a traveling body drive | works an uphill inclination. It is explanatory drawing which shows the relationship between a rotation arm and a latching part in case a traveling body drive | works a downward inclination.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveying rail 2 Traveling body 3 Conveying tray 4 Main body part 5 of traveling body 6 Rotating arm 6 Hooking part 7 Restriction rail 8 Swing guide rails 11 and 12 Rail component parts 13 and 14 Rail component part edge 15 and 16 Rail inner side Bottom (transport rail reference plane)
31 Carriage tray support columns 41, 42 Traveling wheels 43, 44 Restriction wheel 51 Rotating arm base 52 Rotating arm support member 53 Rotating arm tip (free end)
54, 55 Slide spacer 56 Rotating shaft 57 Actuating portion 58 Rolling member 59 Engagement region 61 Oscillating member 62 Rotating shaft 63 Retaining recess 64 Torsion coil spring 65 Stopper 66 Rolling member 71 Near the opening end of the regulation rail 72 Body part 81 of the regulation rail 81 Plane parts 82 and 83 of the swing guide rail Oblique parts of the swing guide rail

Claims (5)

In a transport apparatus comprising a transport rail that forms a transport path on the floor, a traveling body that moves while being restricted in the track by the transport rail, and a transport tray provided on the traveling body,
The traveling body includes a main body having a wheel that rolls along the transport rail, a rotating arm that is rotatably supported with one end supported by the main body, and a vicinity of the tip of the rotating arm. A latching portion provided so as to be latchable, and a conveyance tray column having the conveyance tray connected to the upper end while being erected perpendicular to the longitudinal direction of the rotating arm,
The latching portion includes a swinging member provided on the main body of the traveling body so as to be swingable, and a latching recess provided at a tip on the swinging side of the swinging member,
An operating portion that projects laterally with respect to the longitudinal direction of the pivot arm is provided in the vicinity of the tip of the pivot arm, and in a section where the pivot arm is to be pivoted in a transport path formed by the transport rail, A restriction rail for restricting the height of the operating portion of the rotating arm is provided,
When the swing-side tip approaches the operating portion of the rotating arm by swinging of the swinging member of the latching portion, the latching recess can partially latch the operating portion. A conveying apparatus characterized by that. The swinging member of the latching part is formed in a substantially L shape having a bent part near the center, is pivotally supported by the bent part, and one side swings from the bent part. A swinging member having the other as a working side, the swinging side facing upward from the traveling body, the working side facing backward in the traveling direction of the traveling body, and the leading end of the working side in a vertical direction 2. The transport apparatus according to claim 1 , wherein the transporting end is swung by actuating. In a transport apparatus comprising a transport rail that forms a transport path on the floor, a traveling body that moves while being restricted in the track by the transport rail, and a transport tray provided on the traveling body,
The traveling body includes a main body having a wheel that rolls on a reference surface of the transport rail, a rotating arm that is rotatably supported with one end supported by the main body, and a tip of the rotating arm. A hook portion that is provided so as to be hookable in the vicinity, and a transport tray support column that is vertically provided with respect to the longitudinal direction of the arm and that is connected to the transport tray at the upper end.
An operating portion that projects laterally with respect to the longitudinal direction of the pivot arm is provided near the tip of the pivot arm,
The hook portion is formed in a substantially L shape having a bent portion in the vicinity of the center, and the bent portion is pivotally supported by the main body portion, and one side is configured as a swing side and the other as a working side. A latching portion comprising a pivoting member and a latching concave portion provided at the tip of the pivoting side of the pivoting member and capable of partially latching the operating portion of the rotating arm;
In the conveyance path constituted by the conveyance rail, in a section where the rotation arm of the traveling body is to be rotated, a regulation rail that regulates the height of the operation unit has an appropriate interval above the conveyance rail. And a swing guide rail for guiding the position of the working tip of the swing member in an appropriate section in the vicinity of the start end and the end of the regulation rail. The rocking member is a rocking member in which the rocking-side tip is disposed upward from a portion that is pivotally supported by the traveling body, and the working-side tip is disposed from the pivotal support portion to the rear in the traveling direction of the traveling body. The transport device according to claim 3 , wherein the transport device is a member. 5. The transport device according to claim 2 , wherein the swinging member is a swinging member having a stopper that is biased in a direction in which the working-side tip is lowered and that stops the lowering at an appropriate position.

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