JP5890447B2 - Drum body lifting device and drum body lifting method - Google Patents

Description

  The present invention relates to a lifting device for a drum body having a cylindrical shape (cylindrical shape) that holds a long body in a wound state, and more particularly, on a lower portion of the drum body that is laid down on a support board (ground). The present invention relates to a drum body lifting device and a drum body lifting method which are arranged to lift the drum body. In particular, the present invention relates to a lifting device suitable for being applied to a winding drum of a band-shaped member (profile) and a method for lifting a drum body.

Regarding the rehabilitation of old sewer pipes, a rehabilitation method for sewer pipes has been carried out in which a strip-like member (referred to as a “profile”) is wound around the inner surface of the existing pipe helix in a spiral manner and lined. .
Therefore, a drum support base is provided in the vicinity of the opening of the manhole at the construction site, in which a drum (that is, a drum for the belt-like member) for winding the belt-like member is prepared for carrying out the rehabilitation method. The belt-shaped member drum is placed on the roller, and the belt-shaped member drum is rotated and the belt-shaped member drum is rotated to lower the belt-shaped member into the human hole while the belt-shaped member is pulled out of the belt-shaped member drum as the lining operation proceeds. It is going.
FIG. 12 shows a cross section of an example of the belt-shaped member. The (a) figure shows the cross section of the strip | belt-shaped member 100 made from a synthetic resin (vinyl chloride resin), and the (b) figure shows the cross section of the engagement state of the strip | belt-shaped members 100 mutually. In other words, the belt-like member 100 is spirally wound and the adjacent belt-like members 100 are engaged with each other to form a tubular body (lining tube). Reference numeral 102 denotes a water stop material interposed in the engaging portion.
The conventional drum support has a structure that is lifted from the beginning for the rotation of the belt-shaped member drum placed on the drum support. For this reason, in order to mount the drum for belt-like members on the drum support, a lifting / hanging work device such as a crane is separately required, and the use is restricted, and the scale of the equipment cannot be avoided.

Japanese Utility Model Publication No. 62-48112

The present invention has been made in view of the above circumstances, and supports a drum body having a heavy weight for holding a long body such as a belt-like member in rotation, and provides a rotational motion to the drum body to wind the long body. Provided is a drum body lifting device having a simple mechanism that can support the rotation of the drum body and can lift the drum body without requiring a lifting / suspending work device such as a crane in the operation of lifting. The purpose (technical problem).
Another object of the present invention is to provide a method for lifting a drum body that is carried out using the lifting device.
Therefore, the basic idea of the present invention is to add a lifting action to the rotation support mechanism including the roller. However, in the contact relationship between the cylindrical drum body and the roller of the rotation support mechanism, the rotation support mechanism is provided. Focusing on the fact that the contraction operation of the distance between the rollers of the mechanism exerts a smooth lifting action of the drum body, it has been made based on the knowledge that the lifting action can be added to the rotation support mechanism.

Specifically, the drum body lifting device and the drum body lifting method of the present invention adopt the following configuration.
(First invention)
A first aspect of the present invention relates to a drum lifting device S, as described in claim 1,
The drum body D having a cylindrical shape as well as wound hold the elongate body and sideways state, is disposed in the lower portion of the drum body D support plate of the drum body D through the flange portion of the large diameter of the drum body A device for lifting from above H ,
A rectangular frame composed mainly of two x-axis frames and two y-axis frames that have rigidity and are arranged in parallel to the x-axis and the y-axis orthogonal to each other,
The two x-axis frames include an outer frame having a quadrangular cross section and an inner frame having a quadrangular cross section that fits into the outer frame, and the inner frame is caused by a jacking action of a screw rod disposed in the inner and outer frames. Is axially movable within the outer frame,
The two y-axis frames have a predetermined length, and a roller portion that supports the drum body rotatably with a roller is fixed.
The bottom surface of the roller portion is substantially planar, and the square frame body is surface-supported on the support plate,
The square frame is divided in the y-axis frame and can be assembled.
It is characterized by that.
The first invention is an inventive concept that is more specifically shown in the following embodiment and extracted from the embodiment.
In the above,
1) “Long body” includes a belt-like member used for pipe line-up and electric wires / communication lines in the electric / communication field, but does not exclude other equivalent long members.
2) The “drum body” includes a body part, and includes any form of a mode in which a long body is wound and held on the outer peripheral surface of the body part and a mode in which the long body is wound and held on the inner peripheral surface of the body part. And in any aspect, it has a flange part larger diameter than this trunk | drum.
3) The “side-down state” refers to a state where the drum body is supported by the circumferential surface of the drum body.
In the above configuration,
1) The x-axis frame can be expanded and contracted,
2) The roller part is composed of a single long roller arranged on the y-axis frame,
3) The roller portion is formed by arranging a plurality of short rollers on the y-axis frame,
4) The roller part is fixed along the y-axis frame so that the position can be adjusted.
5) Each segment of the y-axis frame should be plugged in.
6) Each divided body of the y-axis frame adopts a flange connection,
Is an optional matter that is adopted as appropriate.

(Function)
The basic action of the lifting device S is exhibited in the assembly operation performed around the drum body D and the lifting operation on the drum body D.
Assembly operation (holding stationary state)
At the work site, the drum body D is placed on the support plate in a stationary state, and in this state, the divided part of the rectangular frame body of the lifting device S is arranged around the drum body D, and the lifting device S is assembled. Thereafter, the jack operation section of the x-axis frame is operated to contract the two x-axis frames by the jacking action, and the roller of the roller base mounted on the y-axis frame is brought into contact with the flange peripheral surface of the drum body D. .
Thereby, the drum body D for strip | belt-shaped members and this lifting device S take a "stationary state."
In addition, said support board provides a support surface with respect to the ground in the construction site made using this drum body D, the loading platform of the vehicle which conveys this drum body D, or them according to them Including things.
Lifting operation From the above-mentioned stationary state, the jack operation section of the x-axis frame is further operated, the two x-axis frames are contracted synchronously by the jacking action, and the two y-axis frames are pulled toward each other. The rollers of the roller base mounted on the y-axis frame are in contact with the peripheral surface of the flange of the drum body D, and the opposing roller bases are attracted to each other with the slip of the bottom plate on the support plate. By pulling the roller (that is, moving in the x-axis direction), the drum body D gradually rises upward (that is, moves in the z-axis direction) with an approaching action.
In this state, the drum body D is rotated and the belt-like member stored in the drum body D is pulled out.

(Second invention)
A second aspect of the present invention relates to a method for lifting a drum body, as described in claim 7,
The drum body D having a cylindrical shape is laid sideways while the long body is wound and supported at the lower part of the drum body D via the large-diameter flange portion of the drum body D. A method of lifting from the board H ,
a) Mainly a square frame body having two x-axis frames and two y-axis frames which are rigid and arranged in parallel to the x-axis and y-axis orthogonal to each other;
b) The two x-axis frames are composed of a rectangular cross-section outer frame and a quadrilateral cross-section inner frame that fits into the outer frame, and by the jacking action caused by the rotation of the screw rods arranged in the inner and outer frames. The inner frame can be moved axially within the outer frame,
c) The two y-axis frames have a predetermined length, and a roller portion that supports the drum body rotatably with a roller is fixed.
d) The bottom surface of the roller portion is substantially planar, and the square frame body is surface-supported on the support plate H,
e) The rectangular frame is divided in the y-axis frame and can be assembled.
It is made using a drum body lifting device comprising the above a, b, c, d, e,
The divided lifting device on the support board H is arranged on the four circumferences of the drum body D in a state of being laid down, and the divided lifting device is assembled.
The x-axis frame is contracted by the jacking action of the x-axis frame,
While the roller of the roller portion mounted on the y-axis frame is in contact with the flange portion of the drum body D, the bottom surface of the roller portion slides on the support plate H, and the drum body D is lifted. ,
It is characterized by that.
The second invention is an invention concept that is more specifically shown in the following embodiment and extracted from the embodiment.
In the above,
1) “Long body” includes a belt-like member used for pipe line-up and electric wires / communication lines in the electric / communication field, but does not exclude other equivalent long members.
2) The “drum body” includes a body part, and includes any form of a mode in which a long body is wound and held on the outer peripheral surface of the body part and a mode in which the long body is wound and held on the inner peripheral surface of the body part. And in any aspect, it has a flange part larger diameter than this trunk | drum.
3) The “side-down state” refers to a state where the drum body is supported by the peripheral surface of the drum body.
4) “Supporting board” includes a ground on a construction site where a drum body is used, a loading platform of a vehicle that conveys the drum body, or a thing that provides a support surface for the drum body according to them.
In the above configuration,
1) The x-axis frame can be expanded and contracted,
2) The roller part is composed of a single long roller arranged on the y-axis frame,
3) The roller portion is formed by arranging a plurality of short rollers on the y-axis frame,
4) The roller part is fixed along the y-axis frame so that the position can be adjusted.
5) Each segment of the y-axis frame should be plugged in.
6) Each divided body of the y-axis frame adopts a flange connection,
Is an optional matter that is adopted as appropriate.

The present invention has the following effects.
1) Since the lifting device S performs a lifting action from a stationary state on the support plate of the drum body D and supports the drum body D while being lifted, while maintaining the rotation support function of the drum body D, There is no need for lifting / hanging equipment such as cranes. Also, the lifting device S itself is downsized and easy to handle.
2) The lifting device S can be assembled and may be assembled to the drum body D at the time of shipment of the drum body D, or may be assembled after the installation of the drum body D on site, or may be assembled. It can be disassembled later and can be handled according to the situation.
3) Since the square frame 1 of the lifting device S is rigid and strong, and the roller base is fixed to the square frame, the center of gravity can be kept low, and it can be stably installed on the support board. It does not fall easily against unexpected external forces.
4) The drum body D is rolled and supported by the roller of the roller portion in line contact, and the friction is small, so that the drum body D can be lifted smoothly.
5) Since the lifting device S is surface-supported with the bottom surface of the roller portion on the support plate with the drum body D placed thereon, stable support is achieved through a stationary state and a moving state, and a large supporting force. Can be demonstrated. Further, the assembly work of the lifting device S described above can be performed smoothly by the stable surface supporting action of the roller portion.

The top view which shows the whole of one Embodiment (1st Embodiment) of the lifting apparatus S of the weight body of this invention. Side view of the lifting device S (two-direction arrow view of FIG. 1) The partial expanded sectional view of the x-axis frame 2 of this lifting device S (3-3 expanded sectional view of FIG. 1). The top view of the division body A. FIG. The partial omission plan view of division body B. The top view of the roller part 5. FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. FIG. 6 is another aspect diagram of the lifting device S. The side view which shows the stationary state of this lifting device S (9 direction arrow line view of FIG. 11). FIG. 4 is a side view showing a lifting operation of the lifting device S. FIG. 11 is a view in the direction of arrow 11 in FIG. 9. (A) The figure is sectional drawing of an example of a strip | belt-shaped member. (B) The figure is sectional drawing which shows the engagement state between strip | belt-shaped members. The x-axis direction figure which shows the other structure of the roller part 5 of this lifting device S.

Embodiments of a drum body lifting device and a drum body lifting method according to the present invention will be described with reference to the drawings.
FIGS. 1-7 shows application to the lifting device of the drum for strip | belt-shaped members which is one Embodiment of this invention. That is, FIGS. 1 and 2 show an outline of the entire belt-like member drum lifting device, and FIGS. 3 to 7 show the configuration of each part of the belt-like drum lifting device.

Belt-like member drum lifting device S (see FIGS. 1 and 2)
The belt-like member drum lifting device (hereinafter simply referred to as “lifting device”) S, as shown in its entirety in FIGS.
1) Mainly a rectangular frame 1 having rigidity and arranged in parallel to the x axis and the y axis perpendicular to each other,
2) The x-axis frame 2 can be expanded and contracted with a jacking action,
3) The y-axis frame 3 has a predetermined length, and the four roller portions 5 on which the drum body is rotatably mounted are fixedly provided inside the y-axis frame 3;
4) The rectangular frame 1 is supported by the bottom surface of the roller portion 5.
Further, the lifting device S can be assembled / disassembled with a semi-assembly.

Drum D for belt-shaped member (see FIGS. 9 to 11)
First, a belt-shaped member drum (hereinafter simply referred to as “drum”) D to which the lifting device S is applied will be described.
As shown in FIGS. 9 to 11, the drum D has a cylindrical body having a hollow portion having a predetermined width, and includes a hollow cylindrical body portion 50 and flanges 52 having a diameter larger than that of the body portions 50 at both ends. Consists of. A plurality of belt-like members 100 are wound into the body 50, and the belt-like members 100 are pulled out from the openings 52 a of the flanges 52 and used.
The drum D as a whole (and hence the flange 52) has a large diameter and is heavy, and usually exceeds the width of the loading platform of the transport vehicle (truck). An example is a drum D having an overall weight of 2 tons and a flange 52 diameter of 220 cm.
The drum D is usually made of iron (steel), but does not exclude other metals (for example, aluminum) and wood.

The above drum is a so-called inner winding type, and has the following configuration as an example. That is, the drum is structured by a main body 50 and large-diameter flanges 52 on both sides of the main body 50. Initially, a substantially cylindrical temporary cylinder having a diameter smaller than that of the main body 50 is detachably attached between the flanges 52, and the belt-like member 100 is wound around the temporary cylinder at the factory. The temporary body portion is a separable multi-segment body, and has the same diameter as that of the opening 52a of the flange 52 (in this case, fits into the opening 52a) or a diameter larger than the diameter of the opening 52a (in this case, the flange 52). And is detachably fixed to the flange 52. Thereafter, the main body 50 is fixed to the outer periphery of the wound belt-like member 100 and between the flanges 52. The main body 50 is also formed as a separable multi-part body, and is fitted between the flanges 52 from the outer diameter direction and is detachably fixed to the flanges 52. Alternatively, the main body 50 is composed of a plurality of rod-like bodies arranged on the circumference.
In use, the temporary body portion is removed, and the belt-like member 100 can be unwound from the inner periphery, and the belt-like member 100 in the main body portion 50 is taken out from the opening 52 a of the flange 52.

Hereinafter, the configuration of the lifting device S will be described in detail.
Square frame 1
The square frame 1 is composed of an x-axis frame 2 and a y-axis frame 3, and the detailed structure thereof will be described below.

x-axis frame 2 (see Fig. 3)
The x-axis frame 2 can be expanded and contracted by a jacking action, and includes an outer frame 10 having a short square cross section and an inner frame 11 having a long square cross section fitted into the outer frame 10. The inner frame 11 can be expanded and contracted by sliding in the outer frame 10 by the movement.
That is, as shown in FIG. 3, a first cover plate 14 having a screw rod insertion hole (circular hole) 14a through which the screw rod 12 is inserted is fixed to the end of the outer frame 10, and further, A fixed gap space exists at the outer end portion, and the second lid plate 15 is fixed to the outer end portion so as to be removable with a fixing bolt a. A screw rod insertion hole (circular hole) 15 a through which the screw rod 12 is inserted is formed in the front surface of the second lid plate 15. The fixing bolt a is attached by providing a bolt insertion hole into which the non-threaded portion of the screw rod portion of the fixing bolt a is inserted into the second cover plate 15, and the screw portion of the fixing bolt a at a corresponding position of the outer frame 10. A screw hole to be screwed is established. The first and second cover plates 14 and 15 function as reaction force members against the rotational movement of the screw rod 12.
Further, a screw plate (nut) 16 having a screw hole 16a at the center and screwed with the screw rod 12 is fixedly provided on the inner side of the end portion of the inner frame 11 fitted into the outer frame 10.
The screw rod 12 includes a screw portion 12a, a rotating portion (spanner hook) 12b at the end, and a housing 12c connected to the rotating portion 12b. The screw portion 12a is a screw rod insertion hole 14a of the first lid plate 14. The housing 12c is inserted into the above-described gap space of the above-described second lid plate 15 and the screw rod 12 is tightened through the rotating portion 12b. The first and second cover plates 14 and 15 at the end of the outer frame 10 are brought into contact with the end surfaces of the outer frame 10 by the insertion (forward / reverse rotation).
The screw rod 12 constitutes a jack operation portion, and the x-axis frame 2 is contracted by the forward rotation of the screw rod 12, and the x-axis frame 2 is expanded by the reverse rotation.

y-axis frame 3 (see FIGS. 1, 4 and 5)
The y-axis frame 3 is mainly composed of a main frame 3 a having a fixed length, and the main frame 3 a is fitted and inserted into short joint frames 3 b and 3 c protruding from the x-axis frame 2.
In the present embodiment, in the drawing, the joint frame 3b is fixed to the side surface of the end of the x-axis frame 2 by rigid contact such as welding on the left side (that is, the jack operation unit side), and both ends of the main frame 3a are connected to the joint frame 3b. And is fastened with fixing bolts b. On the right side, the joint frame 3c is fixed to the end surface of the x-axis frame 2 by welding or the like, and both ends of the main frame 3a are inserted into the joint frame 3c (the main frame 3a on the right side is the left side). Longer than that). Fastened with a fixing bolt c.
FIG. 4 shows a divided body A including the joint frame 3b. The divided body A is composed of a short outer frame 10 of the x-axis frame 2 and a joint frame 3b fixed to the end side surface of the outer frame 10 with a rigid contact such as welding. As described above, the second cover plate 15 to which the first and second cover plates 14 and 15 are attached is omitted from the outer frame 10.
FIG. 5 shows a divided body B including the joint frame 3c. The divided body B includes a long inner frame 11 of the x-axis frame 2 and a joint frame 3c fixed to the end surface of the inner frame 11 with a rigid contact such as welding. As described above, the screw plate 16 is attached to the end of the inner frame 11.
The inner frame 11 of the divided body B is inserted into the outer frame 10 of the divided body A, and the screw rod 12 is interposed between the outer frame 10 and the inner frame 11.

Roller unit 5 (see FIGS. 6 and 7)
The roller unit 5 is attached to the main frame 3a of the y-axis frame 3, is fixed to be movable with respect to the main frame 3a, supports the square frame 1 with the four roller units 5, and In use, the belt-like member drum body is mounted so as to be rotatable. Specifically, the roller portion 5 includes a roller 20 that rotatably supports the belt member drum body, a roller holding frame 21 that holds the shaft portion 20a of the roller 20, and the roller holding frame 21 that is a y-axis frame. 3 and a fixed frame 22 fixed to the main frame 3a.
The roller 20 is composed of a rotating drum portion that supports the belt-like member drum body so as to be rotatable, and a shaft portion 20a that projects from the central axis of the rotating drum portion.
The roller holding frame 21 includes a side wall plate 21a constituting a square wall and a bottom plate 21b fixed to the bottom portion of the side wall plate 21a, thereby maintaining rigidity. The shaft portion 20a of the roller 20 is detachably received in a groove portion 21c formed in the side wall plate 21a in the width direction (y-axis direction). The bottom plate 21b holds a certain area and is placed on the support board with its friction surface. Further, the rear side wall plate 21a is rigidly connected to the fixed frame 22 with or without the interposed plate 23 interposed therebetween.
The fixed frame 22 has a rectangular cross section and is attached so as to surround the main frame 3 a of the y-axis frame 3. The fixed frame 22 is movable with respect to the main frame 3a, and is fixed to the main frame 3a by a fixing bolt d.
The roller unit 5 may be fixed (no movement) with respect to the main frame 3 a of the y-axis frame 3. In this case, the fixed frame 22 is not necessary, and the roller holding frame 21 of the roller unit 5 is directly rigidly contacted with the main frame 3 a of the y-axis frame 3.

Semi-assembled body (see Fig. 1 and Fig. 8)
As shown in FIG. 1, the lifting device S can be assembled by a plurality of semi-assemblies S1, S2, S3, S4, and can be disassembled after being assembled.
The semi-assembly S1 is mainly composed of one x-axis frame 2 having a jack function incorporated therein, and includes joint frames 3b and 3c fixed to both ends of the x-axis frame 2. The semi-assembled body S2 is mainly composed of the other x-axis frame 2 in which the jack function is incorporated. The semi-assembled body S2 includes joint frames 3b and 3c fixed to both ends of the x-axis frame 2 in an opposite manner to the semi-assembled body S1. . The semi-assembled body S3 is mainly composed of the main frame 3a of the y-axis frame 3 to which the roller base 5 is attached. In assembly, both ends thereof are inserted into the joint frames 3b of the semi-assembled bodies S1 and S2, and fastened with fixing bolts b. . The semi-assembled body S4 is mainly composed of the main frame 3a of the y-axis frame 3 to which the roller base 5 is attached. In assembly, both ends thereof are inserted into the joint frames 3c of the semi-assembled bodies S1 and S2, and fastened with fixing bolts c. .
In the present embodiment, a jack operation unit is arranged on the same side in the x-axis frame 2.
FIG. 8 shows another embodiment of the semi-assembly. In this aspect, the aspect in which the jack operation parts are arranged on the opposite sides in the x-axis frame 2 is adopted. That is, two semi-assemblies S1 and one each of semi-assemblies S3 and S4 are used, and the three types of semi-assemblies are used.

The basic action of the basic action the lifting device S of this lifting device S is exerted in the assembling operation of該持up system S, lifting operations and the drum D for strip according lifting device S.
9 to 11 show the operation mode, FIGS. 9 and 11 show the stationary state of the lifting device S, and FIG. 10 shows the lifting state.
Assembly operation (holding state) (Refer to Fig. 9 and Fig. 11)
At the work site, the belt-shaped member drum D is temporarily placed on the support board H while being kept stationary, and the semi-assemblies S1, S2, S3, S4 of the lifting device S are placed around the drum D at this position. To arrange. The subassemblies S1, S2, S3, S4 are assembled together with the fastening bolts a, b, c, d. At this time, the roller 20 of the roller base 5 mounted on the y-axis frame 3 and the flange 52 of the drum D are arranged on the same straight line. After that, the screw rod 12 of the jack operation section is rotated to contract the two x-axis frames 2 by the jacking action, and all the rollers 20 of the four roller bases 5 mounted on the y-axis frame 3 are drummed. It contacts the flange 52 of D.
Thereby, the drum D for strip | belt-shaped members and this lifting device S take a "stationary state."
Lifting operation (see Fig. 10)
From the above-mentioned stationary state, the screw rod 12 is further rotated, and the two x-axis frames 2 are synchronously contracted by the jacking action, and the two y-axis frames 3 are pulled toward each other. The roller 20 of the roller base 5 mounted on the y-axis frame 3 is in contact with the flange 52 of the drum D, and the opposing roller bases 5 are drawn toward each other by the slip of the bottom plate 21b on the support board H, and the roller 20 By pulling (that is, moving in the x-axis direction), the drum D gradually rises upward (ie, moves in the z-axis direction) with an upward action via the flange 52.
When the weight W of the drum D is 2 tons and the diameter φ of the flange 52 of the drum D is 220 cm, the initial distance L1 between the shaft portions 20a of the rollers 20 facing each other of the lifting device S Is 119 cm, the x-axis frame 2 of the lifting device S is contracted by a jack operation, and the distance L2 between the shaft portions 20a of the roller 20 is 108 cm, the lifting height h of the drum D is 2.4 cm. Become.
In this state, the drum D is rotated and the belt-like member 100 accommodated in the drum D is pulled out.
When the supply of the lowering operation strip member 100 is completed, the screw rod 12 of the jack operation unit is rotated in the reverse direction, the two x-axis frames 2 are synchronously extended, and the two y-axis frames 3 are separated from each other. While the roller 20 of the roller base 5 mounted on the y-axis frame 3 supports the flange 52 of the drum D, the opposing roller bases 5 are separated from each other by the slip of the bottom plate 21b on the support board H, and the drum D Is gradually moved down through the flange 52 and placed on the support board H.
In this state, the belt-like member drum D and the main lifting device S again adopt the “stationary state”.

Mode of Use of the Lifting Device S Based on the basic operation of the lifting device S, the mode of use for the belt-shaped member drum D that is performed using the lifting device S will be described.

Hereinafter, description will be made based on the procedure of use.
(1)
At the factory shipment (or relay base) of the drum D for the belt-shaped member, the drum D for the belt-shaped member is lifted and installed on a loading platform of a predetermined transport vehicle (usually a truck) by a dedicated crane. The loading platform serves as a support plate.
At this time, the belt-shaped member drum D is laid sideways, and the lifting device S is installed in a stationary state as described above under the belt-shaped member drum D. Alternatively, the main lifting device S may be disposed in a fixed relationship with the belt-shaped member drum D first, and the belt-shaped member drum D may be disposed on the lifting device S. The belt-shaped member drum D on the bed is fastened to the bed.
Alternatively, the belt-shaped member drum D may be arranged on the loading platform, and only the drum D may be fastened to the loading platform, and the lifting device S may be placed in another position in a semi-assembled state.

(2)
Move the truck to the construction site and stop at an appropriate position (usually as close as possible to the human hole). At this time, the level of the loading platform of this truck is secured. Thereafter, the fastening of the belt-like member drum D on the loading platform is released, and the fixed position state of the lifting device S is confirmed.
When the lifting device S remains in the semi-assembled state, the lifting device S is assembled in the manner described above, and is brought into a fixed position with the belt-shaped member drum D.

(3)
The jack operation of the x-axis frame 2 is actuated by the jack operating portion of the lifting device S, the belt-like member drum D is lifted, and the belt-like member 100 is pulled out from the belt-like member drum D.

(Effect of embodiment)
1) Since the lifting device S lifts the drum from the stationary state on the support plate of the drum and supports the drum while being lifted, the lifting / hanging of the crane or the like is maintained while maintaining the rotation support function of the drum. No unloading work device is required. Also, the lifting device S itself is downsized and easy to handle.
2) The lifting device S can be assembled and assembled to the drum D at the time of shipment of the drum D, or may be assembled after the installation of the drum D on site, or may be disassembled after the assembly. Can be handled according to the situation.
3) The square frame 1 of the lifting device S is rigid and strong, and the four roller bases 5 are fixed to the square frame 1, so that the center of gravity can be kept low and stable on the support board. It will not fall down easily due to unexpected external force.
4) The roller unit 5 of the lifting device S can be adjusted in the distance of the y-axis frame 3 and can correspond to various types of drums D having different flange intervals.
5) The drum D is rolled and supported by the roller 20 of the roller unit 5 in a line contact, has a small friction, and exhibits a smooth lifting action of the drum D.
6) Since the lifting device S is surface-supported on the support plate with the bottom plate 21b of the roller unit 5 with the drum D placed thereon, stable support is provided through a stationary state and a moving state, and a large support is provided. I can demonstrate my power. Further, the assembly work of the lifting device S is smoothly performed by the stable surface supporting action of the roller unit 5.

(Other aspects 1)
In the previous embodiment, the x-axis frame 2 can be expanded and contracted, but it is not excluded that the x-axis frame 2 can only be contracted. In this case, the second cover plate 15 is omitted.
(Other aspect 2)
In the previous embodiment, there are two roller bases 5 attached to the y-axis frame 3, but it is not excluded that a single roller base having a long roller is used. Two flanges of the drum D are supported by the long roller.
(Other aspect 3)
In the previous embodiment, the coupling mode of the semi-assembled body is a nesting mode. However, the y-axis frame 3 is divided into two or three along the y-axis, and the contact surface of the divided body of the y-axis frame 3 is defined. It is not excluded that the flanges are in flange connection with bolts and nuts. In this case, it is a design matter to be appropriately made to adopt a mode of dividing into two from the center or a mode of dividing into three.
(Other aspect 4)
It does not exclude that the expansion / contraction movement of the x-axis frame 2 is performed via an expansion / contraction mechanism (for example, screw rods or hydraulic cylinders having opposite screw forms on both sides) arranged in the center of the x-axis frame 2.
(Other aspect 5)
The y-axis frame 3 does not exclude taking a circular cross section other than taking a square cross section.

(Other embodiments)
In the previous embodiment, the belt-shaped member drum D has an inner winding type, but the same effect can be obtained in an embodiment in which an outer winding drum D is used. That is, the drum D also includes a hollow body 50 and flanges 52 at both ends. The body 50 is made as small as possible, and the belt-like member 100 is wound around the outer periphery of the body 50 in multiple layers. . Of course, the outer diameter of the wound layer of the belt-like member 100 is smaller than the diameter of the flange 52.
This type of drum D is applied to a former push type pipe making apparatus.
In use, the drum D arranged near the opening of the human hole on the ground is lifted by the main lifting device S, the belt-shaped member 100 is unwound from the outer periphery of the drum D, and the belt-shaped member 100 is installed at the bottom of the human hole. It is fed into a push-type pipe making apparatus, and the belt-like member 100 is spirally wound with the former push-type pipe making apparatus to form a lining pipe and sent out into an existing sewer pipe.

The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention.
1) In this embodiment, the rotational movement of the drum D by the roller 20 of the lifting device S depends on the manual operation of the operator. However, it is not excluded that these rotational movements are driven by power (electric motor, hydraulic motor).
FIG. 13 shows an example thereof. In the figure, 30 is a hydraulic motor, 30 a is a rotational drive shaft of the hydraulic motor 30, 31 is a joint, 32 is a wheel disposed on the lower surface of the hydraulic motor 30, and 33 is a hydraulic motor 30. This is a stepping pedal that performs forward and reverse operations. The hydraulic circuit (pipe, hydraulic source) is omitted.
Specifically, the hydraulic motor 30 is connected to the rotating shaft 20a of the roller 20 of the roller portion 5 via a joint 31, and the hydraulic motor 30 is driven (forward / reverse) by the depression of the pedal 33. The hydraulic motor 30 has wheels 32 and moves smoothly in the x-axis direction.

The present invention is not limited to a drum for profile members for sewer rehabilitation, and is a cable for winding a cable used for so-called cable installation work (electric installation work) of electric wires and communication lines in the electric and communication fields. Applicable to drums.
In other words, the cable drum has substantially the same configuration as that of the belt-shaped member drum described above, and has a large-diameter flange (rib plate) at both ends of a winding drum (cylinder) for winding the cable.
In the conventional electric construction work, a shaft rod is inserted into the center hole of the drum and both ends of the shaft rod are supported by posts (stays) standing on a support board. According to the application, neither a crane nor a column is required, and stable wiring work can be performed.

S ... Lifting device, D ... Drum body (drum for belt-shaped member)
DESCRIPTION OF SYMBOLS 1 ... Square frame body, 2 ... x-axis frame, 3 ... y-axis frame, 5 ... roller stand, 12 ... screw rod, 20 ... roller, 21b ... bottom plate

Claims (7)

The long drum is held and the cylindrical drum is laid sideways, and the drum is lifted from the top of the support plate via the large-diameter flange of the drum that is arranged at the bottom of the drum. A device,
A rectangular frame composed mainly of two x-axis frames and two y-axis frames that have rigidity and are arranged in parallel to the x-axis and the y-axis orthogonal to each other,
The two x-axis frames include an outer frame having a quadrangular cross section and an inner frame having a quadrangular cross section that fits into the outer frame, and the inner frame is caused by a jacking action of a screw rod disposed in the inner and outer frames. Is axially movable within the outer frame,
The two y-axis frames have a predetermined length, and a roller portion that supports the drum body rotatably with a roller is fixed.
The bottom surface of the roller portion is substantially planar, and the square frame body is surface-supported on the support plate ,
The square frame is divided in the y-axis frame and can be assembled.
A drum body lifting device characterized by the above.   The drum body lifting device according to claim 1, wherein the x-axis frame is movable in a telescopic manner.   The drum body lifting device according to claim 1 or 2, wherein the roller portion includes a plurality of short rollers corresponding to the flange portion of the drum body, each being arranged on the y-axis frame.   The drum body lifting device according to any one of claims 1 to 3, wherein the roller portion is fixed along the y-axis frame so that the position thereof can be adjusted.   The drum body lifting device according to any one of claims 1 to 4, wherein each of the divided bodies of the y-axis frame has an insertion connection.   The drum body lifting device according to any one of claims 1 to 4, wherein each of the divided parts of the y-axis frame adopts a flange connection. The long drum is held and the cylindrical drum is laid sideways, and the drum is lifted from the top of the support plate via the large-diameter flange of the drum that is arranged at the bottom of the drum. A method,
a) Mainly a square frame body having two x-axis frames and two y-axis frames which are rigid and arranged in parallel to the x-axis and y-axis orthogonal to each other;
b) The two x-axis frames are composed of a rectangular cross-section outer frame and a quadrilateral cross-section inner frame that fits into the outer frame, and by the jacking action caused by the rotation of the screw rods arranged in the inner and outer frames. The inner frame can be moved axially within the outer frame,
c) The two y-axis frames have a predetermined length, and a roller portion that supports the drum body rotatably with a roller is fixed.
d) The bottom surface of the roller portion is substantially planar, and the square frame body is surface-supported on the support plate,
e) The rectangular frame is divided in the y-axis frame and can be assembled.
It is made using a drum body lifting device comprising the above a, b, c, d, e,
Arranging the divided lifting device on the four circumferences of the drum body in a state of lying down on the support board, assembling the divided lifting device,
The x-axis frame is contracted by the jacking action of the x-axis frame,
The roller of the roller part mounted on the y-axis frame is brought into contact with the flange part of the drum body, and the bottom surface of the roller part is slid on the support plate to lift the drum body.
A method of lifting a drum body characterized by the above.

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