Method for transporting trolley equipment and elevator equipment

Abstract

The objective is to provide a trolley device and a method for transporting elevator equipment that can improve the work efficiency of transport operations. [Solution] The first end 12a of the leg member 12 is rotatably connected to the mounting member 11. A rotation restricting mechanism is also provided between the mounting member 11 and the first end 12a. When the load is lifted from a position lower than the transport position to the transport position, the leg member 12 rotates to the lock angle due to the weight of the pair of wheels 13. The rotation restricting mechanism restricts the rotation of the leg member 12 relative to the mounting member 11 when the angle of the leg member 12 relative to the mounting member 11 reaches the lock angle.

Description

Technical Field

[0001] The present disclosure relates to a trolley device and a method for transporting elevator equipment.

Background Art

[0002] In a conventional caster for a transport device, an attachment portion is attached to the transport device. A wheel is attached to the attachment portion via a bracket (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional caster for a transport device as described above, the height of the transport device from the floor surface when transporting the transport device is determined by the height dimension of the caster. Therefore, for example, when transporting a device with a small vertical dimension, it is necessary to perform the transport operation at a low position, resulting in a decrease in workability.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to obtain a trolley device capable of improving the workability of a transport operation and a method for transporting elevator equipment.

Means for Solving the Problems

[0006] The trolley device according to this disclosure comprises a mounting member attached to a load, a leg member having a first end rotatably connected to the mounting member and a second end opposite to the first end, a wheel provided on the second end, and a rotation restricting mechanism provided between the mounting member and the first end. When the load is lifted from a position lower than the transport position to the transport position, the leg member rotates due to the weight of the wheel until the angle with respect to the mounting member becomes a locked angle. The rotation restricting mechanism restricts the rotation of the leg member relative to the mounting member when the angle of the leg member with respect to the mounting member reaches the locked angle. The elevator equipment transport method according to this disclosure includes an attachment step of attaching a plurality of trolley devices to the bottom of the elevator equipment placed on a container, a lifting step of lifting the elevator equipment from its position on the container to a transport position, and a transport step of transporting the elevator equipment horizontally using the plurality of trolley devices. Each trolley device comprises an attachment member attached to the elevator equipment, a leg member having a first end rotatably connected to the attachment member and a second end opposite to the first end, a wheel provided at the second end, and a rotation restricting mechanism provided between the attachment member and the first end. When the elevator equipment is lifted to the transport position, the leg member rotates due to the weight of the wheel until the angle with respect to the attachment member becomes a locked angle. The rotation restricting mechanism restricts the rotation of the leg member relative to the attachment member when the angle of the leg member with respect to the attachment member reaches the locked angle. [Effects of the Invention]

[0007] According to this disclosure, the work efficiency of transport operations can be improved. [Brief explanation of the drawing]

[0008] [Figure 1] This is a side view showing the usage state of the trolley device according to Embodiment 1. [Figure 2] Figure 1 is a perspective view showing the trolley device. [Figure 3] Figure 2 is a magnified perspective view of the inside of the groove of the mounting member. [Figure 4]Figure 2 is a magnified perspective view showing the first end of the leg member. [Figure 5] This is a cross-sectional view showing the main part of Figure 4. [Figure 6] This is a side view showing the state of the trolley device being attached to the cargo in Figure 1. [Figure 7] Figure 6 is a perspective view of the trolley device seen from diagonally below. [Modes for carrying out the invention]

[0009] The embodiments will be described below with reference to the drawings. Embodiment 1. Figure 1 is a side view showing the trolley device in use according to Embodiment 1. In the figure, multiple trolley devices 10 are attached to the underside of the cargo 50. In this example, a pair of front and rear trolley devices 10 are used as the multiple trolley devices 10. In the state shown in Figure 1, the cargo 50 is transported by the worker in the left-right direction in Figure 1 using the pair of trolley devices 10.

[0010] Figure 2 is a perspective view showing the trolley device 10 of Figure 1. Each trolley device 10 has a mounting member 11, a leg member 12, a pair of wheels 13, and an axle 14.

[0011] The mounting member 11 is attached to the bottom surface of the luggage 50 using multiple bolts 15. A groove 11a is provided at one end of the mounting member 11. The shaft 14 is fixed to the mounting member 11 so as to cross the groove 11a horizontally.

[0012] The leg member 12 has a first end 12a and a second end 12b. The second end 12b is the end opposite to the first end 12a. When transporting the load 50, the first end 12a is the upper end of the leg member 12, and the second end 12b is the lower end of the leg member 12.

[0013] The first end portion 12a is inserted into the groove 11a. The shaft 14 passes through the first end portion 12a. The first end portion 12a is connected to the mounting member 11 so as to be rotatable about the shaft 14.

[0014] The pair of wheels 13 is rotatably provided at the second end portion 12b. The second end portion 12b is located between the pair of wheels 13.

[0015] FIG. 3 is a perspective view showing an enlargement of the inside of the groove 11a of the attachment member 11 in FIG. 2. The attachment member 11 is provided with a first shaft hole 11b through which the shaft 14 passes. Further, a pair of lock holes 11c are provided on the wall surfaces of the groove 11a facing each other. In FIG. 3, only one of the pair of lock holes 11c is shown.

[0016] FIG. 4 is a perspective view showing an enlargement of the first end portion 12a of the leg member 12 in FIG. 2. FIG. 5 is a cross-sectional view showing the main part of FIG. 4. The first end portion 12a is provided with a second shaft hole 12c through which the shaft 14 passes.

[0017] Although not shown in FIG. 2, the cart device 10 further has a rotation restricting mechanism 16. The rotation restricting mechanism 16 is provided between the attachment member 11 and the first end portion 12a.

[0018] Further, the rotation restricting mechanism 16 restricts the rotation of the leg member 12 with respect to the attachment member 11. That is, the rotation restricting mechanism 16 locks the angle of the leg member 12 with respect to the attachment member 11 at the lock angle shown in FIGS. 1 and 2. The lock angle in this example is 90 degrees.

[0019] Here, either the attachment member 11 or the leg member 12 is taken as the first member, and the other is taken as the second member. In this example, the leg member 12 is the first member, and the attachment member 11 is the second member.

[0020] The rotation restricting mechanism 16 has a pair of lock members 17 and a pair of compression springs 18. In FIG. 4, the pair of compression springs 18 are not shown. Also, in FIG. 5, only one of the pair of compression springs 18 is shown.

[0021] A pair of locking members 17 and a pair of compression springs 18 are provided on the first end 12a of the first member, the leg member 12. The second member, the mounting member 11, is provided with a pair of locking holes 11c as described above.

[0022] Each locking member 17 is inserted into the corresponding locking hole 11c when the angle of the leg member 12 relative to the mounting member 11 reaches the locking angle. This restricts the rotation of the leg member 12 relative to the mounting member 11 and locks the angle of the leg member 12 relative to the mounting member 11 at the locking angle.

[0023] The first end portion 12a is provided with a pair of lock member insertion holes 12d. Figure 5 shows only one of the pair of lock member insertion holes 12d.

[0024] Each compression spring 18 is positioned within the corresponding lock member insertion hole 12d of a pair of lock member insertion holes 12d. Each compression spring 18 pushes the corresponding lock member 17 in the direction of insertion into the lock hole 11c.

[0025] Figure 6 is a side view showing the trolley device 10 in the process of being attached to the cargo 50 in Figure 1. Figure 7 is a perspective view of the trolley device 10 in Figure 6, viewed from diagonally below.

[0026] The cargo 50 is loaded onto container 51. Container 51 is placed on the floor surface 52. When attaching the trolley device 10 to the cargo 50, the angle of the leg member 12 with respect to the mounting member 11 is greater than the locking angle. That is, the leg member 12 is at an obtuse angle with respect to the mounting member 11.

[0027] As a result, the vertical dimension of the trolley device 10 is less than or equal to the gap between the bottom surface of the cargo 50 on the container 51 and the floor surface 52. In this state, the mounting member 11 is fixed to the bottom surface of the cargo 50 by multiple bolts 15.

[0028] After a pair of trolley devices 10 are attached to the luggage 50, the luggage 50 is lifted. As the luggage 50 is lifted, the angle of the leg members 12 relative to the mounting member 11 gradually decreases due to the weight of the pair of wheels 13 on each trolley device 10. That is, the leg members 12 gradually change from an extended state relative to the mounting member 11 to a bent state relative to the mounting member 11.

[0029] Then, the angle of the leg member 12 relative to the mounting member 11 reaches the locking angle. The vertical position of the load 50 at this time is called the "transport position". When the load 50 is lifted from a position lower than the transport position to the transport position, the leg member 12 rotates due to the weight of the pair of wheels 13 until the angle relative to the mounting member 11 becomes the locking angle.

[0030] Before the angle of the leg member 12 relative to the mounting member 11 reaches the locking angle, each locking member 17 is in contact with the surrounding area of ​​each locking hole 11c in the mounting member 11, i.e., with each wall surface of the groove 11a, and each compression spring 18 is compressed.

[0031] When the angle of the leg member 12 relative to the mounting member 11 reaches the locking angle, the rotation restricting mechanism 16 restricts the rotation of the leg member 12 relative to the mounting member 11. That is, when the angle of the leg member 12 relative to the mounting member 11 reaches the locking angle, the restoring force of the pair of compression springs 18 causes the pair of locking members 17 to be inserted into the pair of locking holes 11c, respectively.

[0032] As a result, each of the pair of trolley devices 10 is locked into the operating state shown in Figure 1. After this, the cargo 50 is lifted and unloaded from the container 51. Then, the cargo 50 is transported using the pair of trolley devices 10.

[0033] In this type of trolley device 10, the first end 12a of the leg member 12 is rotatably connected to the mounting member 11. A rotation restricting mechanism 16 is also provided between the mounting member 11 and the first end 12a.

[0034] Then, when the load 50 is lifted from a position lower than the transport position to the transport position, the leg member 12 rotates to the lock angle due to the weight of the pair of wheels 13. The rotation restricting mechanism 16 restricts the rotation of the leg member 12 relative to the mounting member 11 when the angle of the leg member 12 relative to the mounting member 11 reaches the lock angle.

[0035] Therefore, each trolley device 10 can be easily attached to the cargo 50 regardless of the height of the container 51 from the floor 52, that is, regardless of the height of the cargo 50. Therefore, in order to attach each trolley device 10 to the cargo 50, it is not necessary to lift the cargo 50, and workers do not need to go under the cargo 50.

[0036] Furthermore, the transport position of the cargo 50 can be raised higher than the position where it is placed in the container 51. Therefore, workers do not need to bend down when transporting the cargo 50.

[0037] Therefore, the trolley device 10 of Embodiment 1 can improve the work efficiency of transporting the cargo 50.

[0038] Furthermore, the trolley device 10 can be standardized regardless of the height of the container 51 from the floor 52, and the height at which workers push the cargo 50 can also be the same. In addition, by standardizing the trolley device 10, the management costs of jigs can be reduced.

[0039] Furthermore, each trolley device 10 can be easily removed from the cargo 50.

[0040] Furthermore, when the angle of the leg member 12 relative to the mounting member 11 reaches the locking angle, the restoring force of the pair of compression springs 18 causes the pair of locking members 17 to be inserted into the pair of locking holes 11c, respectively. Thus, the angle of the leg member 12 relative to the mounting member 11 can be locked to the locking angle with a simple configuration.

[0041] Furthermore, the locking mechanism 16 can be easily released by pushing the locking member 17 into the locking member insertion hole 12d through the locking hole 11c. This allows the trolley device 10 to be easily reused.

[0042] In this embodiment, the cargo 50 to which the trolley device 10 of Embodiment 1 is attached can be, for example, elevator equipment. When installing or renovating elevator equipment, multiple trolley devices 10 can be attached to the elevator equipment to transport it.

[0043] In this case, the method for transporting elevator equipment includes an installation process, a lifting process, and a transport process.

[0044] The installation process involves attaching multiple trolley devices 10 to the underside of the elevator equipment placed on the container 51. The lifting process involves lifting the elevator equipment from its position on the container 51 to the transport position. The transport process involves transporting the elevator equipment horizontally using the multiple trolley devices 10.

[0045] This method of transporting elevator equipment can improve the efficiency of the transport work.

[0046] Examples of elevator equipment include emergency stop devices. By using the trolley device 10 of Embodiment 1, heavy emergency stop devices can be easily transported.

[0047] Furthermore, the elevator equipment referred to as cargo 50 is not limited to emergency stop devices; it may also include hoisting machines, machine stands, etc.

[0048] Furthermore, the "50 items" category is not limited to elevator equipment.

[0049] Furthermore, the number of trolley devices 10 attached to the luggage 50 can be changed according to the shape, weight, size, etc., of the luggage 50, and may be three or more.

[0050] Furthermore, the mounting position of each trolley device 10 on the luggage 50 is not limited to the bottom surface of the luggage 50, but may also be, for example, on the side.

[0051] Furthermore, the mounting device for attaching the mounting member 11 to the luggage 50 is not limited to a bolt 15, but may also be, for example, a combination of a bolt 15 and a nut, or a magnet.

[0052] Furthermore, the number of wheels 13 provided on one leg member 12 may be one or three or more.

[0053] Furthermore, a weight may be added to at least one of the wheel 13 and the second end 12b. This allows the leg member 12 to rotate more reliably and smoothly to the locking angle when the load 50 is lifted.

[0054] Furthermore, the locking angle is not necessarily limited to 90 degrees; for example, it may be a larger angle than 90 degrees.

[0055] Furthermore, the rotation restricting mechanism 16 may have a structure that allows the user to select the locking angle to be used from a plurality of locking angles.

[0056] Furthermore, the locking member 17 and the compression spring 18 may be provided on the mounting member 11, and the leg member 12 may be provided with a locking hole. That is, the mounting member 11 may be the first member and the leg member 12 may be the second member. [Explanation of Symbols]

[0057] 10 Bogie device, 11 Mounting member, 11c Locking hole, 12 Leg member, 12a First end, 12b Second end, 13 Wheel, 16 Rotation restricting mechanism, 17 Locking member, 18 Compression spring, 50 Luggage, 51 Container.

Claims

1. Mounting components that are attached to luggage, A leg member having a first end rotatably connected to the mounting member and a second end which is the end opposite to the first end, The wheel provided at the second end, and Rotation restricting mechanism provided between the mounting member and the first end Equipped with, When the load is lifted from a position lower than the transport position to the transport position, the leg member rotates due to the weight of the wheels until the angle with respect to the mounting member becomes the locked angle. The rotation restricting mechanism is a trolley device that restricts the rotation of the leg member relative to the mounting member when the angle of the leg member relative to the mounting member reaches the lock angle.

2. When either the mounting member or the leg member is designated as the first member and the other as the second member, The aforementioned rotation control mechanism is A locking member provided on the first member, which is inserted into a locking hole provided on the second member when the angle of the leg member relative to the mounting member reaches the locking angle, A compression spring is provided on the first member and pushes the locking member in the direction of insertion into the locking hole. It has, The trolley device according to claim 1, wherein before the angle of the leg member with respect to the mounting member reaches the locking angle, the locking member is in contact with the area around the locking hole in the second member and the compression spring is compressed.

3. The trolley device according to claim 1 or claim 2, wherein a weight is attached to at least one of the wheel and the second end.

4. Installation process: Attaching multiple trolley devices to the underside of elevator equipment mounted in a container. A lifting process for lifting the elevator equipment from its position on the container to the transport position, and A transport process in which the elevator equipment is transported horizontally using the aforementioned multiple trolley devices. Includes, Each of the aforementioned trolley devices, Mounting member to be attached to the elevator equipment, A leg member having a first end rotatably connected to the mounting member and a second end which is the end opposite to the first end, The wheel provided at the second end, and Rotation restricting mechanism provided between the mounting member and the first end Equipped with, When the elevator equipment is lifted to the transport position, the leg member rotates due to the weight of the wheels until the angle relative to the mounting member becomes the locked angle. A method for transporting elevator equipment, wherein the rotation restricting mechanism restricts the rotation of the leg member relative to the mounting member when the angle of the leg member relative to the mounting member reaches the lock angle.

5. The elevator equipment is an emergency stop device, as described in claim 4, for transporting elevator equipment.

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