JP2015113231A - Stacker crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stacker crane which facilitates maintenance work for removing abrasion powder attracted by a magnet member.SOLUTION: A stacker crane 1 includes: wheels 10 which roll contacting with a rail R; and a travel body 20 provided with the wheels 10. The stacker crane 1 is moved along the rail R by the wheels 10 rolling on the rail R. The stacker crane 1 further includes a detachable body 41 which may be attached to or detached from the travel body 20; and a fastener for fixing the detachable body 41 to the travel body 20. A magnet member 42 which faces the rail R in a state where the detachable body 41 is fixed to the travel body 20 is provided at the detachable body 41.

Description

  The present invention relates to a stacker crane that moves along a rail.

  Generally, a stacker crane that constitutes an automatic warehouse system includes a wheel that rolls in contact with a rail, and a traveling body on which the wheel is provided. When at least one of the rail and the wheel is made of metal, there is a problem that metal wear powder (for example, iron powder) is generated due to friction between the rail and the wheel. In an environment where food warehouses and precision equipment are handled, it is required that wear powder such as iron powder does not scatter.

  In order to suppress the scattering of the wear powder due to the friction between the rail and the wheel, for example, it is conceivable to provide a magnet member that adsorbs the wear powder (see, for example, Patent Document 1). Patent Document 1 describes a stacker crane in which a permanent magnet that attracts metal powder generated by friction between a rail and a slide member is provided on the lower surface of a lifting body.

JP 2006-282306 A

  By the way, in order to maintain the wear powder adsorption performance by the magnet member, it is necessary for the operator to regularly perform a maintenance operation for removing the wear powder adsorbed by the magnet member. When the stacker crane is installed in a narrow place, the maintenance work is troublesome.

  This invention is made | formed in view of the said situation, Comprising: It aims at providing the stacker crane which can perform the maintenance operation | work which removes the abrasion powder adsorbed by the magnet member easily.

  In order to solve the above-mentioned problem, the stacker crane according to claim 1 includes a wheel that rolls in contact with a rail, and a traveling body provided with the wheel, and the wheel is rolled to the rail. A stacker crane that moves along the traveling body, further comprising: a detachable body that can be attached to and detached from the traveling body; and a latch for fixing the removable body to the traveling body, A magnet member is provided to face the rail when the detachable body is fixed to the traveling body.

  The stacker crane according to claim 2 is the stacker crane according to claim 1, wherein the locking tool includes a fixed locking tool having a fixed hook, and a movable locking tool having an operation lever and a movable hook. The patch lever is capable of switching between a state in which the fixed hook and the movable hook are hooked to each other and a state in which the fixed hook and the movable hook are not hooked by rotation of the operation lever.

  The stacker crane according to claim 3 is the stacker crane according to claim 1 or 2, wherein the detachable body includes a support frame portion that supports the magnet member, and a grip portion that extends above the support frame portion. It is characterized by having.

  The stacker crane according to claim 4 is the stacker crane according to claim 3, wherein an upper end portion of the grip portion is provided with a drop-off preventing portion protruding in a horizontal direction from the grip portion. And

  The stacker crane according to claim 5 is the stacker crane according to any one of claims 1 to 4, wherein a cover member that covers the magnet member is provided on the detachable body.

  The stacker crane according to claim 6 is the stacker crane according to any one of claims 1 to 5, wherein the traveling body is provided with a support that supports the detachable body, and the support is A pair of upper and lower protrusions facing each other in the direction, and the pair of upper and lower protrusions regulate movement of the detachable body inserted between the pair of upper and lower protrusions in the vertical direction.

  A stacker crane according to a seventh aspect is the stacker crane according to the sixth aspect, wherein the lower protrusion disposed on the lower side of the pair of upper and lower protrusions is more than the upper protrusion disposed on the upper side. It extends in the horizontal direction, and the upper surface of the upper protrusion is an inclined surface that guides the detachable body toward the upper surface of the lower protrusion.

  ADVANTAGE OF THE INVENTION According to this invention, the stacker crane which can perform easily the maintenance operation | work which removes the abrasion powder adsorbed by the magnet member can be provided.

It is a perspective view which shows the stacker crane which concerns on one Embodiment of this invention. (A) is the schematic diagram which simplifies and shows the stacker crane which concerns on the embodiment, (B) is the one part enlarged view. It is a perspective view of the magnet unit with which the stacker crane concerning the embodiment is provided. (A) is a front view of the detachable body constituting the magnet unit, (B) and (C) are side views, and (D) is a plan view. (A) is a top view of the magnet member which comprises a magnet unit, (B) is a side view. It is an expanded view of the cover member which shows the state which extended the cover member which comprises a magnet unit. (A) is a top view of the movable locking tool which comprises a magnet unit, (B) is a side view. It is a perspective view of the edge part of the traveling body with which the stacker crane concerning the embodiment is provided, and is a figure showing the support etc. provided in the traveling body. (A) is a top view of the support provided in a traveling body, (B) and (C) are side views. (A) is a top view of the locking tool fixing member provided in a traveling body, (B) is a front view. (A) is a top view of the fixed locking tool provided in a traveling body, (B) is a side view. It is a perspective view which shows the state by which the magnet unit was fixed to the traveling body. (A)-(C) are schematic diagrams for demonstrating operation | movement of a locking tool. The schematic diagram for demonstrating the attachment operation | work of the magnet unit to a traveling body. (A) And (B) is a schematic diagram for demonstrating the removal operation | work of the abrasion powder from a cover member.

  An embodiment of the present invention will be described with reference to the drawings. In addition, the X direction represented by the arrow X in the figure, the Y direction represented by the arrow Y in the figure, and the Z direction that is the vertical direction represented by the arrow Z in the figure are directions orthogonal to each other.

  As shown in FIG. 1, a stacker crane 1 that constitutes a three-dimensional automatic warehouse system is a floor-type stacker crane including wheels 10, a traveling body 20, a fork device 30, and the like. The stacker crane 1 is provided on a rail R formed of linear steel that extends in the Y direction.

  The wheels 10 are provided at both ends of the traveling body 20 in the Y direction. The wheel 10 is made of steel and rolls in contact with the upper surface of the rail R. The traveling body 20 travels along the rail R as the wheels 10 roll.

  The traveling body 20 is provided on the rail R. The traveling body 20 includes a lower frame 21 and an upper frame 22 that are spaced apart from each other in the Z direction, and a mast 23 that connects the lower frame 21 and the upper frame 22. The lower frame 21 of the traveling body 20 is rotatably provided with wheels 10 and guide rollers (not shown) that roll in contact with the side surface of the rail R. When the traveling body 20 travels along the rail R, the fork device 30 moves along with the traveling body 20 along the rail R. That is, the stacker crane 1 moves along the rail R as the wheels 10 roll.

  The fork device 30 is a device that supports and transfers a load (not shown). The fork device 30 is provided so as to be movable up and down along the mast 23 extending in the Z direction. That is, the fork device 30 is provided to be movable in the Z direction with respect to the traveling body 20.

  As shown in FIG. 2, the stacker crane 1 includes a magnet unit 40 that can be detached and attached to the traveling body 20. The magnet unit 40 shown in FIG. 2 (B) is simplified in FIGS. 1 and 2 (A).

  As shown in FIG. 2A, the magnet unit 40 is attached to the lower frame 21 constituting the traveling body 20 and is disposed in the vicinity of the wheel 10. The magnet unit 40 is provided at both ends of the lower frame 21 in the Y direction. Since the two magnet units 40 provided on the lower frame 21 have the same configuration, the magnet unit 40 provided on one end of the lower frame 21 will be described below and provided on the other end of the lower frame 21. The description relating to the magnet unit 40 is omitted.

  As shown in FIG. 2 (B), the magnet unit 40 includes a detachable body 41 that can be attached to and detached from the lower frame 21 of the traveling body 20. When the detachable body 41 is fixed to the traveling body 20, the magnet unit 40 moves together with the traveling body 20.

The configuration of the magnet unit 40 will be described with reference to FIGS.
As shown in FIG. 3, the magnet unit 40 includes an attaching / detaching body 41, a magnet member 42 that magnetically attracts metal wear powder, a cover member 43 that covers the magnet member 42, and a movable locking tool 44. I have.

  As shown in FIG. 4, the detachable body 41 includes a support frame portion 41A that supports the magnet member 42, a supported portion 41B that is supported by the traveling body 20, and a pair of grips that can be gripped by a human hand. It has a part 41C and a locking tool fixing part 41D to which the movable locking tool 44 is fixed. The support frame portion 41A formed in a rectangular shape when viewed from above has a pair of opposing walls 41E arranged at intervals in the Y direction and a pair of opposing walls 41F arranged at intervals in the X direction. The opposing wall 41E and the opposing wall 41F are connected to each other. A hook-and-loop fastener 45 is provided on the outer surface of the facing wall 41E. A through hole 41G into which a screw (not shown) for attaching the magnet member 42 to the detachable body 41 is inserted is formed in the facing wall 41F. The supported portions 41B are provided at both ends of the support frame portion 41A in the X direction, and protrude in the X direction from the outer surfaces of the pair of opposing walls 41F. The supported portion 41B connects the support frame portion 41A and the grip portion 41C, and the grip portion 41C extends upward from each end portion of the supported portion 41B. That is, the support frame portion 41A is provided between the pair of grip portions 41C, and each of the grip portions 41C protrudes above the support frame portion 41A. At the upper end portion of the grip portion 41C extending in the Z direction, a drop-off prevention portion 41H protruding from the grip portion 41C in the Y direction is provided. The locking tool fixing portion 41D is provided at the upper end portion of the support frame portion 41A, and connects the pair of opposing walls 41E. A plurality of female screws 41I into which screws (not shown) for attaching the movable locking tool 44 to the detachable body 41 are inserted are formed in the locking tool fixing portion 41D. The detachable body 41 in which the portions 41A to 41D and 41H are integrally formed can be formed by welding one or more steel materials. The detachable body 41 is preferably formed of stainless steel in order to maintain corrosion resistance. Moreover, in order to prevent the magnet member 42 from sticking to the detachable body 41 and to prevent the detachable body 41 from being magnetized, the detachable body 41 is preferably formed of nonmagnetic stainless steel. Since the magnet member 42 does not stick to the detachable body 41, the magnet unit 40 can be easily assembled. Further, since the detachable body 41 is not magnetized, the detachable body 41 is prevented from sticking to support members 51 and 52 (see FIG. 8) described later, and the magnet unit 40 is easily inserted into the support members 51 and 52. It is possible.

  As shown in FIG. 5, the magnet member 42 is a columnar magnet bar extending in the X direction. The inside of the magnet member 42 is configured by a permanent magnet in which N poles and S poles are alternately magnetized in the X direction, and the exterior of the magnet member 42 is configured by stainless steel that maintains the corrosion resistance performance of the magnet member 42. ing. The permanent magnet is preferably a neodymium-based rare earth magnet in order to ensure the attraction performance of metallic wear powder. Female screws 42 </ b> A for attaching the magnet member 42 to the detachable body 41 are formed at both ends of the magnet member 42 in the X direction.

  As shown in FIG. 6, the cover member 43 is a flexible sheet formed of a vinyl chloride resin. The dimension L from one end to the other end of the cover member 43 in the direction perpendicular to the X direction is larger than the circumference of the magnet member 42 so that the cover member 43 can be wound one or more times along the outer periphery of the magnet member 42. Also long. A double-sided tape 46 is provided at one end of both ends of the cover member 43, and a hook-and-loop fastener 47 is provided at the other end. The double-sided tape 46 is attached to the surface of the cover member 43, and the surface fastener 47 is attached to the back surface of the cover member 43 with an adhesive. The double-sided tape 46 is attached to the inner surface of the opposing wall 41E that constitutes the detachable body 41, and the surface fastener 47 is attached to the surface fastener 45 provided on the outer surface of the opposing wall 41E. Thus, the cover member 43 is provided on the detachable body 41, and one end of the cover member 43 is configured to be easily detachable from the detachable body 41 by the hook-and-loop fastener 45.

  As shown in FIG. 7, the movable locking tool 44 includes a substrate 44A, an operation lever 44B provided on the substrate 44A, and a movable hook 44C provided on the operation lever 44B. The substrate 44A is formed with a plurality of through holes 44D into which screws (not shown) for attaching the movable locking tool 44 to the detachable body 41 are inserted. The operation lever 44B rotates around a rotation axis A1 indicated by a one-dot chain line A1 in the drawing, and the movable hook 44C rotates around a rotation axis A2 indicated by a one-dot chain line A2 in the drawing. The rotation axis A2 of the movable hook 44C is displaced in the Y direction with the rotation of the operation lever 44B.

  Next, a configuration provided in the lower frame 21 of the traveling body 20 in order to fix the magnet unit 40 (see FIG. 3) to the traveling body 20 will be described with reference to FIGS. Since the configuration at both ends of the lower frame 21 is the same, the configuration provided at one end of the lower frame 21 will be described below, and the description of the other end of the lower frame 21 will be omitted.

  As shown in FIG. 8, at one end of the lower frame 21, the magnet unit 40 is fixed to the traveling body 20, so that support tools 51 and 52, a locking tool fixing member 53, and a fixed locking tool 54 are provided. Is provided. The locking tool fixing member 53 is provided between the support tools 51 and 52 that are arranged at intervals in the X direction. The support tools 51 and 52 and the locking tool fixing member 53 are attached to the traveling body 20 using bolts 61.

  As shown in FIG. 9, the support tool 51 includes a traveling body mounting portion 51A, a lower projection 51B, and an upper projection 51C. Similarly, the support tool 52 includes a traveling body mounting portion 52A, a lower projection 52B, and an upper projection 52C. A plurality of through holes 51D and 52D into which the bolts 61 are inserted are formed in the traveling body mounting portions 51A and 52A. Each protrusion 51B, 51C, 52B, 52C protrudes from the traveling body attaching portions 51A, 52A in the Y direction. The lower protrusions 51B and 52B and the upper protrusions 51C and 52C are provided with an interval in the Z direction, and constitute a pair of upper and lower protrusions. The lower protrusions 51B and 52B arranged on the lower side protrude in a direction away from the traveling body attachment parts 51A and 52A than the upper protrusions 51C and 52C arranged on the upper side. The upper surfaces 51F and 52F of the upper protrusions 51C and 52C are inclined so as to be lowered from the traveling body attachment parts 51A and 52A, and are inclined toward the upper surfaces 51E and 52E of the lower protrusions 51B and 52B. . The supported portion 41B of the detachable body 41 is inserted between the lower protrusions 51B and 52B and the upper protrusions 51C and 52C. Therefore, the support tools 51 and 52 support the supported portion 41B, and the lower protrusion portions 51B and 52B and the upper protrusion portions 51C and 52C function as movement restriction portions that restrict movement of the detachable body 41 in the Z direction. Further, movement restricting portions 51G and 52G for restricting the movement of the detachable body 41 in the direction approaching the traveling body 20 are provided between the lower protrusions 51B and 52B and the upper protrusions 51C and 52C.

  As shown in FIG. 10, the locking tool fixing member 53 includes a traveling body mounting portion 53A and a locking device mounting portion 53B. A long hole 53C into which the bolt 61 is inserted is formed in the traveling body mounting portion 53A. The locking tool attaching part 53B protrudes from the traveling body attaching part 53A in the Y direction. A plurality of female screws 53 </ b> D for attaching the fixed locking tool 54 to the locking tool fixing member 53 are formed in the locking tool mounting portion 53 </ b> B.

  As shown in FIG. 11, the fixed locking tool 54 includes a substrate 54A and a fixed hook 54B. The substrate 54A is formed with a plurality of through holes 54C into which screws (not shown) for attaching the fixing locking member 54 to the locking member fixing member 53 are inserted. The fixed hook 54 </ b> B is hooked on the movable hook 44 </ b> C of the movable locking tool 44 and restricts the movement of the detachable body 41 in the direction away from the traveling body 20.

A state in which the detachable body 41 is fixed to the traveling body 20 will be described with reference to FIG.
As shown in FIG. 12, the supported portion 41B of the detachable body 41 is inserted between the lower projections 51B, 52B and the upper projections 51C, 52C of the support tools 51, 52, and the fixed locking tool 54 is inserted. The fixed hook 54 </ b> B and the movable hook 44 </ b> C of the movable locking tool 44 are hooked to each other, whereby the detachable body 41 is fixed to the traveling body 20. Therefore, when the detachable body 41 is fixed to the traveling body 20, the support tools 51 and 52 and the locking tools 44 and 54 restrict the movement of the magnet unit 40 in the Z direction and the Y direction. The fixed latch 54 and the movable latch 44 constitute a latch 71 for fixing the detachable body 41 to the traveling body 20, and the latch 71 operates the operation lever 44B. Thus, the detachable body 41 can be fixed and released.

The operation of the locking tool 71 will be described with reference to FIG.
FIG. 13A shows a state where the fixed hook 54B and the movable hook 44C are not hooked. In order to fix the detachable body 41 to the traveling body 20, as shown in FIG. 13B, the operating lever 44B is raised upward to bring the rotation axis A2 of the movable hook 44C closer to the fixed hook 54B. The movable hook 44C is disposed at a position indicated by a two-dot chain line B1 in the drawing. Then, by tilting the operation lever 44B and moving the rotation axis A2 of the movable hook 44C away from the fixed hook 54B as shown in FIG. 13C, the fixed hook 54B and the movable hook 44C are hooked. When the fixing of the detachable body 41 to the traveling body 20 is released, as shown in FIG. 13B, the operation lever 44B is raised upward to bring the rotation axis A2 of the movable hook 44C closer to the fixed hook 54B. The movable hook 44C is disposed at a position indicated by a two-dot chain line B2. Then, the operation lever 44B is tilted so that the fixed hook 54B and the movable hook 44C are not caught as shown in FIG.

  An example of the operation of attaching the magnet unit 40 to the traveling body 20 will be described. FIG. 14 shows one process of attaching the magnet unit 40 to the traveling body 20. The detachable body 41 in FIG. 14 illustrates a cross section of the supported portion 41B, and one of the pair of grip portions 41C is not illustrated. Moreover, the two-dot chain line in FIG. 14 has shown the operator's hand.

  The worker holds the grip unit 41 </ b> C with his / her hand and has the magnet unit 40 so that the support frame portion 41 </ b> A is disposed between the support tools 51 and 52. Then, the magnet unit 40 is lowered from above the support tools 51 and 52, and the supported portions 41B provided at both ends of the support frame portion 41A are brought into contact with the upper surfaces 51F and 52F of the upper protrusion portions 51C and 52C. With the supported portion 41B in contact with the upper surfaces 51F and 52F, the magnet unit 40 is moved in the direction of the arrow C1. The upper surfaces 51F and 52F of the upper protrusions 51C and 52C guide the supported portion 41B of the magnet unit 40 to the upper surfaces 51E and 52E of the lower protrusions 51B and 52B, and the supported portion 41B extends from the upper surfaces 51F and 52F. The upper surface 51E and 52E contact | abut by falling. At this time, since the magnet member 42 of the magnet unit 40 is magnetically attracted toward the rail R, the supported portion 41B is easily guided to the upper surfaces 51E and 52E of the lower projections 51B and 52B. Next, the magnet unit 40 is moved in the direction of the arrow C2 in the drawing in order to bring the fixed latch 54 and the movable latch 44 close to each other. Then, the operation lever 44B of the movable locking tool 44 is operated to hook the movable hook 44C on the fixed hook 54B.

  In addition, when removing the magnet unit 40 from the traveling body 20, the operation lever 44B of the movable locking tool 44 is operated, and the fixing of the detachable body 41 to the traveling body 20 is released. Then, the grip unit 41 </ b> C is grasped by hand, and the magnet unit 40 is extracted from the support tools 51 and 52.

  With reference to FIG. 15, the maintenance operation | work which removes the abrasion powder adsorbed by the magnet member 42 is demonstrated. Maintenance work is performed by removing the magnet unit 40 from the traveling body 20.

  The metal wear powder attracted by the magnet member 42 adheres to the cover member 43 that covers the magnet member 42 as shown in FIG. Therefore, the operator separates the attached surface fasteners 45 and 47 in order to remove the abrasion powder adsorbed by the magnet member 42, and widens the cover member 43 as shown in FIG. The abrasion powder adhering to the surface of the member 43 is removed.

In the present embodiment, the following effects can be obtained.
(1) The stacker crane 1 includes a wheel 10 and a traveling body 20, an detachable body 41 that can be attached to and detached from the traveling body 20, and a locking tool 71 for fixing the detachable body 41 to the traveling body 20. The detachable body 41 is provided with a magnet member 42 that faces the rail R when the detachable body 41 is fixed to the traveling body 20. According to this configuration, by fixing the detachable body 41 to the traveling body 20 using the locking tool 71, the metal wear powder provided on the detachable body 41 magnetically wears the metal wear powder. Can be aspirated. For this reason, when metal wear powder is generated due to the friction between the rail R and the wheel 10, the scattering of the wear powder can be suppressed by the magnet member 42. Furthermore, the detachable body 41 can be detached from the traveling body 20 together with the magnet member 42 by releasing the fixation of the detachable body 41 by the locking tool 71. For this reason, the operator can remove the detachable body 41 from the traveling body 20 and take the magnet member 42 that adsorbs the abrasion powder to an arbitrary place. Therefore, the maintenance work for removing the abrasion powder adsorbed by the magnet member 42 can be easily performed as compared with the configuration in which the magnet member 42 is difficult to attach to and detach from the traveling body 20.

  (2) The locking tool 71 includes a fixed locking tool 54 having a fixed hook 54B and a movable locking tool 44 having an operation lever 44B and a movable hook 44C, and the fixed hook 54B is rotated by the rotation of the operation lever 44B. And a patchon lock capable of switching between a state in which the movable hook 44C is hooked and a state in which the fixed hook 54B and the movable hook 44C are not hooked. For this reason, the operator can fix the detachable body 41 to the traveling body 20 without using a tool such as a screwdriver.

  (3) The detachable body 41 includes a support frame portion 41A and a grip portion 41C extending upward from the support frame portion 41A. For this reason, since the operator can attach and detach the detachable body 41 to and from the traveling body 20 with the grip portion 41C, the detachable body 41 can be easily handled.

  (4) At the upper end of the grip part 41C, a drop-off prevention part 41H that protrudes from the grip part 41C in the horizontal direction (Y direction) is provided. For this reason, when the operator's hand holding the grip part 41C is in contact with the drop-off preventing part 41H, it is possible to prevent the detachable body 41 from falling out of the operator's hand.

  (5) The detachable body 41 is provided with a cover member 43 that covers the magnet member 42. For this reason, metal abrasion powder attracted by the magnet member 42 can be attached to the cover member 43. Therefore, the maintenance work can be performed by cleaning the cover member 43, and the wear powder adhering to the cover member 43 can be easily removed by moving the cover member 43 away from the magnet member 42. Therefore, the maintenance work can be easily performed as compared with the configuration in which the wear powder adheres to the magnet member 42.

  (6) The traveling body 20 is provided with support tools 51 and 52 that support the detachable body 41. The support tools 51 and 52 are a pair of upper and lower protrusions (protrusion parts 51B and 51B) facing each other in the vertical direction (Z direction). 51C and the protrusions 52B and 52C), and the pair of upper and lower protrusions restricts the movement of the detachable body 41 inserted between the pair of upper and lower protrusions in the vertical direction. For this reason, the detachable body 41 can be more firmly fixed to the traveling body 20.

  (7) Of the pair of upper and lower protrusions (protrusions 51B and 51C and protrusions 52B and 52C), the lower protrusions 51B and 52B disposed on the lower side are the upper protrusions 51C and 52C disposed on the upper side. The upper surfaces 51F and 52F of the upper protrusions 51C and 52C are inclined surfaces that guide the detachable body 41 toward the upper surfaces 51E and 52E of the lower protrusions 51B and 52B. is there. For this reason, the detachable member 41 can be guided to the upper surfaces 51E and 52E of the lower protrusions 51B and 52B by sliding the detachable member 41 along the upper surfaces 51F and 52F of the upper protrusions 51C and 52C.

  The present invention is not limited to the above embodiment, and the above configuration can be changed as appropriate. For example, the following modifications can be implemented, and the following modifications can be combined.

  -If the support tools 51 and 52 and the locking tool fixing member 53 are provided with respect to the traveling body 20, the support tools 51 and 52 etc. may be attached to members other than the lower frame 21. FIG. For example, the support tools 51 and 52 and the locking tool fixing member 53 may be attached to a bracket (not shown) that supports the guide roller.

  The arrangement of the fixed latch 54 and the movable latch 44 may be reversed. That is, a movable locking tool may be provided on the traveling body 20 instead of the fixed locking tool 54, and a fixed locking tool may be provided on the detachable body 41 instead of the movable locking tool 44.

  As long as the detachable body 41 can be fixed to the traveling body 20, a locking tool for fixing the detachable body 41 to the traveling body 20 may be configured by a lock other than a patchon lock. . For example, the latch for fixing the detachable body 41 to the traveling body 20 may be a pinch lock.

DESCRIPTION OF SYMBOLS 1 Stacker crane 10 Wheel 20 Running body 21 Lower frame 22 Upper frame 23 Mast 30 Fork device 40 Magnet unit 41 Detachable body 41A Support frame part 41B Supported part 41C Grip part 41D Locking fixture fixing part 41E, 41F Opposite wall 41G Through hole 41H Fall-off prevention part 41I Female screw 42 Magnet member 42A Female screw 43 Cover member 44 Movable locking tool 44A Substrate 44B Operation lever 44C Movable hook 44D Through hole 45 Surface fastener 46 Double-sided tape 47 Surface fasteners 51, 52 Supporting tools 51A, 52A Traveling Body mounting portions 51B, 52B Lower projections 51C, 52C Upper projections 51D, 52D Through holes 51E, 51F, 52E, 52F Upper surface 53 Locking fixture fixing member 53A Traveling body mounting portion 53B Locking fixture mounting portion 53C Long hole 53D Female screw 54 fixed lock 5 4A Substrate 54B Fixed hook 54C Through hole 61 Bolt 71 Locking tool R Rail

In order to solve the above-mentioned problem, the stacker crane according to claim 1 includes a wheel that rolls in contact with a rail, and a traveling body provided with the wheel, and the wheel is rolled to the rail. A stacker crane that moves along the traveling body, further comprising: a detachable body that can be attached to and detached from the traveling body; and a latch for fixing the removable body to the traveling body, a cover member, a magnet member which faces the rail when in the state in which the detachable member is fixed is provided for the traveling member, said cover member, said magnet so as to cover the lower portion of the magnet member A sheet wound around a member, wherein one end and the other end of the cover member are attached to the detachable body, and the one end is configured to be detachable from the detachable body .
The stacker crane according to claim 7 includes a wheel that rolls in contact with the rail and a traveling body provided with the wheel, and the stacker crane moves along the rail when the wheel rolls. A crane, further comprising a detachable body attachable to and detachable from the traveling body, and a locking tool for fixing the detachable body to the traveling body, wherein the detachable body includes the traveling body On the other hand, when the detachable body is fixed, a magnet member that faces the rail is provided, and the traveling body is provided with a support tool that supports the detachable body. The pair of upper and lower protrusions opposed to each other, the pair of upper and lower protrusions restricts the movement of the detachable body inserted between the pair of upper and lower protrusions in the vertical direction, and the pair of upper and lower protrusions Placed on the lower side The lower protrusion extends in the horizontal direction from the upper protrusion disposed on the upper side, and the upper surface of the upper protrusion is an inclined surface that guides the detachable body toward the upper surface of the lower protrusion. It is characterized by being.

The stacker crane according to claim 5 is the stacker crane according to any one of claims 1 to 4 , wherein the traveling body is provided with a support that supports the detachable body, the support being A pair of upper and lower protrusions facing each other in the direction, and the pair of upper and lower protrusions regulate movement of the detachable body inserted between the pair of upper and lower protrusions in the vertical direction.

A stacker crane according to a sixth aspect is the stacker crane according to the fifth aspect , wherein the lower protrusion disposed on the lower side of the pair of upper and lower protrusions is more than the upper protrusion disposed on the upper side. It extends in the horizontal direction, and the upper surface of the upper protrusion is an inclined surface that guides the detachable body toward the upper surface of the lower protrusion.

Claims (7)

A stacker crane that includes a wheel that rolls in contact with a rail, and a traveling body provided with the wheel, and that moves along the rail when the wheel rolls,
A detachable body that is detachable from the traveling body; and a locking tool for fixing the detachable body to the traveling body,
The stacker crane, wherein the detachable body is provided with a magnet member facing the rail when the detachable body is fixed to the traveling body. The locking device includes a fixed locking device having a fixed hook and a movable locking device having an operation lever and a movable hook, and the fixed hook and the movable hook are hooked to each other by the rotation of the operation lever. The stacker crane according to claim 1, wherein the stacker crane is capable of switching between a state where the fixed hook and the movable hook are not caught. The stacker crane according to claim 1 or 2, wherein the detachable body includes a support frame portion that supports the magnet member, and a grip portion that extends upward from the support frame portion. 4. The stacker crane according to claim 3, wherein a drop-off preventing portion protruding in a horizontal direction from the grip portion is provided at an upper end portion of the grip portion. The stacker crane according to any one of claims 1 to 4, wherein the detachable body is provided with a cover member that covers the magnet member. A support for supporting the removable body is provided on the traveling body,
The support has a pair of upper and lower protrusions opposed in the vertical direction,
The stacker according to any one of claims 1 to 5, wherein the pair of upper and lower protrusions restricts movement of the detachable body inserted between the pair of upper and lower protrusions in the vertical direction. crane. Of the pair of upper and lower protrusions, the lower protrusion disposed on the lower side extends in the horizontal direction from the upper protrusion disposed on the upper side,
The stacker crane according to claim 6, wherein the upper surface of the upper protrusion is an inclined surface that guides the detachable body toward the upper surface of the lower protrusion.

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