JP7187013B2 - hose mover - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose moving device capable of easily moving a large-diameter hose such as a concrete pressure-feeding hose used when concrete is pumped and placed at a construction site.

When pouring concrete at a construction site using a concrete pressure-feeding hose, a worker supports the tip of the pressure-feeding hose and pours the concrete into a predetermined location. When changing the placement location, the end of the pressure feed hose must be moved, but the heavy weight of the pressure feed hose makes it difficult to lift and move. becomes. However, since the pressure feeding hose is heavy, if it is moved while being dragged, the hose body will wear out early or crack in the hose body. Further, when moving on a reinforcing bar, the reinforcing bar is pulled by the pressure feeding hose and deformed, and depending on the case, there is a possibility that the binding wire of the reinforcing bar may be cut. Therefore, as shown in Patent Literature 1, for example, a hose-moving device has been developed that can smoothly move a heavy hose for pressure-feeding concrete without dragging it and has a simple structure. This hose-moving device is made of a resin, more specifically, a reinforced plastic box with a housing recess formed at the upper end for housing the hose. The hose is used by fitting it in the housing recess of. If the hose is to be moved here, for example, by pulling, the box body can be slid on the reinforcing bars and the hose can be moved smoothly.

However, since the hose for pumping concrete is heavy and often needs to be moved frequently at the casting site, the sliding surface on the bottom of the box of the hose moving device or the bottom of the slide is severely worn. Mobile equipment has a problem of short life.

In order to deal with such a problem, for example, as shown in Patent Document 2, a box having a housing recess formed at the upper end for housing the hose and the box covering the lower outer surface of the box are provided. Hose displacement devices have also been used which consist of a sliding member removably fitted to the body. This hose moving device does not need to replace the entire hose moving device even if the bottom surface of the slide wears, and only the slide member needs to be replaced, so it is highly economical.

However, against the backdrop of the fact that the usage environment of concrete pumping hoses is becoming more severe due to the increase in size of buildings and the shortening of construction periods, there is a demand for further measures to improve the wear of hose moving equipment.

In order to meet these demands, the hose moving device or the slide member is made of a lightweight metal material such as stainless steel to improve the abrasion resistance of the moving device itself.

Japanese Utility Model Publication No. 2-37956 JP-A-7-317320

Using a metal material such as stainless steel can be expected to improve the durability or wear resistance of the moving instrument compared to using a resin material. However, when a metal moving tool is slid on, for example, a reinforcing bar, the metal tying wire that binds the reinforcing bars due to friction between the metals corrodes due to, for example, generated sparks. There is a risk that it will deteriorate, cut, and disturb the arrangement of the reinforcing bars. If the arrangement of reinforcing bars is disturbed, there is a possibility that the strength of the concrete structure will decrease.

The present invention was created in view of the problems of the prior art related to the bottom surface of the hose moving device, and the bottom surface of the hose moving device can be replaced. It is an object of the present invention to provide a device for moving a hose provided with means for improving durability, which is different from measures such as forming a hose with a wear-resistant material.

In order to achieve this object, the hose moving device of the present invention is a hose moving device on which a hose is placed and moved, the device main body having a bottom surface formed as a slide surface, and a and a hose accommodating portion, wherein the hose accommodating portion includes friction reducing means for reducing friction with the hose. When the hose housed and supported in the hose housing is pulled or pushed in the lengthwise direction of the hose, the friction reducing means causes the hose to shift in the longitudinal direction relative to the hose housing or the device body. It's getting easier. Therefore, when the hose is used, the amount of sliding movement of the hose moving device or the device body is reduced by the amount that the hose shifts relative to the hose accommodating portion or the device body. As a result, the wear of the bottom surface of the hose moving device or device body can be sufficiently reduced, but if the bottom surface of the hose moving device or device body is made of a metal material, for example, sparks may occur. It is also possible to reduce the frequency and effectively protect the reinforcing bars or binding wires. The hose accommodating portions can be provided at both ends of the instrument body, for example, at both front and rear ends. The wear reducing means can be configured to abut or contact the lower portion of the outer peripheral surface of the hose to reduce friction with the hose.

The friction reducing means can be a low-friction surface layer, a low-friction surface portion, or a low-friction surface sheet formed on the hose housing. Alternatively, the friction reducing means may be a rotating roller provided in the hose housing. The rotating roller can have a metal roller, but can also have a rubber roller or a resin roller.

ADVANTAGE OF THE INVENTION According to this invention, the durability or abrasion resistance of the apparatus for hose movement can be improved effectively.

1 is an exploded perspective view of a first hose moving device according to the present invention; FIG. It is a front view of a roller structure. FIG. 10 is a perspective view showing the state of use of the first hose moving device; It is a perspective view which shows the example of a change of roller structure. It is a front view which shows the example of a change of roller structure. Fig. 3 is an exploded perspective view of a second hose transfer device according to the present invention; It is a sectional view of a slide structure. FIG. 11 is a perspective view showing the state of use of the second hose moving device; FIG. 11 is a perspective view showing a modification of the low-friction surface layer;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

First, a first hose moving device according to the present invention will be described with reference to FIGS. 1 to 3. FIG.

The first hose moving device 1 comprises a device body 3 made of plastic (for example, polyester resin or epoxy resin), particularly fiber-reinforced plastic (for example, glass-fiber reinforced polyester resin or glass-fiber reinforced epoxy resin), and this device. a metal hose support structure 5 removably mounted inside the body 3. The instrument main body 3 is integrally formed in the shape of a container with an open top or in the shape of a low-height box. A pair of left and right side wall portions 13 and 15 are provided, and the pair of left and right side wall portions 13 and 15 are formed higher than the pair of front and rear wall portions 9 and 11 . The pair of front and rear walls 9 and 11 and the pair of left and right side walls 13 and 15 are smoothly connected to the bottom surface 7. 11 is connected to the upper end. A pair of front and rear circular attachment holes 17 and 19 are formed in the pair of left and right side walls 13 and 15, respectively.

The hose support structure 5 includes a pair of front and rear metal pipe-shaped support bodies 21 and 23 having the shape of a rectangular frame on one end in the length direction and the other end in the length direction, and the pipe-shaped support bodies 21 and 23. A pair of left and right metal connection plates 25 and 27 that connect the ends to each other, and a pair of left and right support towers formed in an inverted V shape by metal rods attached to the pipe-shaped support bodies 21 and 23, respectively, or Pillars 29, 31 and a wide V-shaped hose housing support portion supported by a pair of left and right support towers or pillars 29, 31 and formed by metal rods between the support towers or pillars 29, 31. 33 , 35 , and metallic friction-reducing bearings 37 , 39 (friction-reducing means) provided on both left and right sides of the V-shaped hose housing support portions 33 , 35 . The support tower or column 29 and the hose accommodation support 33, and the support tower or column 31 and the hose accommodation support 35 respectively constitute the hose accommodation. Long hole-shaped mounting holes 41 and 43 are formed in the pair of left and right connection plates 25 and 27 corresponding to the mounting holes 17 and 19 of the side wall portions 13 and 15, respectively.

The friction-reducing bearings 37,39 are attached to the hose-receiving supports 33,35 via metal mounting rings 45,47, which form the hose-receiving supports 33,35. Friction-reducing bearings 37, 39 having mounting rings 45, 47 fixed to inner rings (not shown) are fitted to the metal rods for mounting together with the mounting rings 45, 47, and the mounting rings 45, 47 are fixed to the metal rods. Then, a metal rod is secured between a pair of support towers or columns 29,31. The metal outer rings 49, 51 of the friction-reducing bearings 37, 39 are rotatable with respect to the hose housing support portions 33, 35, and are in contact with or in contact with the lower side of the concrete pumping hose 53 over the entire width of the concrete. It is arranged so as to support the pressure feeding hose 53 .

The hose support structure 5 is placed inside the device main body 3 , the mounting bolt 55 is passed through the mounting hole 17 and the mounting hole 41 from the outside of the side wall portion 13 , the nut 59 is attached to the mounting bolt 55 from the inside, and the side wall portion 15 is attached. By inserting the mounting bolt 57 through the mounting hole 19 and the mounting hole 43 from the outside and attaching the nut 61 to the mounting bolt 57 from the inside, the first hose moving device 1 can be constructed. Also, by removing the nuts 59 and 61 from the mounting bolts 55 and 57 and extracting the mounting bolts 55 and 57 from the mounting holes 41 and 43 and the mounting holes 17 and 19, the instrument body 3 can be separated from the hose support structure 5. When the bottom surface 63 of the instrument body 3 is worn out, only the instrument body 3 can be replaced.

The first hose moving device 1 is connected to a pair of support towers or columns 29 on the front side with a pulling string 65, placed on a reinforcing bar 67 at a concrete casting location, and then placed in a hose housing, that is, a hose housing support. Concrete pumping hose 53 is housed or mounted on parts 33, 35 or friction reducing bearings 37, 39 for use. When moving the concrete pumping hose 53 by a large amount, the pulling string 65 is pulled to slide the first hose moving device 1 on the reinforcing bar 67 . When changing the placement position of concrete slightly, the position of the tip of the concrete pressure-feeding hose 53 is changed without pulling the tension string 65. In this case, the concrete pressure-feeding hose 53 is designed to reduce friction. The rotation of the outer rings 49 and 51 of the bearings 37 and 39 causes the first hose moving device 1 to move in the longitudinal direction with respect to the hose housing support portions 33 and 35 or the device main body 3, so that the first hose moving device 1 almost slides on the reinforcing bars 67. Otherwise, the amount of sliding movement of the first hose moving device 1 on the reinforcing bar 67 is reduced. Also, the pulsation of the concrete pumping hose 53 is not transmitted to the tool main body 3 due to the rotation of the friction reducing bearings 37 and 39 . Here, even if the instrument body 3 is made of stainless steel, for example, the binding wire (not shown) binding the reinforcing bars 67 is not easily cut.

As shown in FIGS. 4 and 5, in order to protect the concrete pumping hose 53, instead of the metal friction-reducing bearings 37, 39, rubber or resin outer rings 69, 71 are provided for friction reduction. Rotating rubber or resin rollers (in this case, bearings with resin inner rings are used) 73 and 75 may be attached to the hose housing support portions 33 and 35 . The rubber or resin roller 73 can be attached to the hose accommodation support 33 so as to be sandwiched between a positioning ring 76 fitted and fixed to the hose accommodation support 33, and the rubber or resin roller 75 is attached to the hose accommodation support. It can be attached to the hose housing support portion 35 so as to be sandwiched by a positioning ring 78 that is fitted and fixed to the hose housing support portion 35 .

A second hose moving device according to the present invention will now be described with reference to FIGS.

The second hose moving device 77 includes a device main body 79 and hose housing portions 81 and 83 provided on the front and rear sides of the device main body 79. The device main body 79 is made of plastic (for example, polyester resin). or epoxy resin), particularly made of fiber-reinforced plastic (for example, glass-fiber-reinforced polyester resin or glass-fiber-reinforced epoxy resin), and a body portion 85 attached to the body portion 85 so as to cover the lower outer surface of the body portion 85. and a sliding member 87 made of plastic (for example polyester resin or epoxy resin), in particular fiber-reinforced plastic (for example glass-fiber reinforced polyester resin or glass-fiber reinforced epoxy resin). The body portion 85 is integrally formed in the shape of a container with an open top or in the shape of a relatively high box, and includes a bottom portion 89, a pair of front and rear walls 91 and 93 rising from the outer edge of the bottom portion 89, and a pair of left and right walls. The pair of front and rear walls 91 and 93 and the pair of left and right side walls 95 and 97 are formed at the same height. Lightening holes 99, 101, 103 for reducing weight are formed in the bottom surface portion 89 and the pair of front and rear wall portions 91, 93, and the pair of front and rear circular mounting holes are formed in the pair of left and right side wall portions 95, 97, respectively. 105 and 107 are formed. Note that the lightening holes 99, 101, and 103 may not be formed. A pair of front and rear walls 91 and 93 and a pair of left and right side walls 95 and 97 have upper ends formed with flanges 109 over the entire circumference. A pair of front and rear flanges 109a and 109b of the flange 109 are provided with semi-cylindrical or semi-circular hose housing portions 81 and 83 for housing the concrete pumping hose 53, respectively. Low-friction surface layers 111 and 113 are formed at portions 81 and 83, respectively, to constitute friction reducing means. The low-friction surface layers 111, 113 are thin layers made of a low-friction plastic material having a coefficient of friction smaller or lower than that of the plastic material of the body portion 85, and are applied to the entire hose housing portions 81, 83 and both sides of the hose housing portions 81, 83. are formed at the collar portions 109a and 109b. Connection holes 115 (the connection hole of the side wall portion 95 is not shown) for connecting the pulling string 65 are provided on both sides in the front-rear direction of the pair of left and right side wall portions 95 and 97 of the body portion 85, and a handle is provided in the central portion. A hole 117 (a hole for holding the side wall portion 95 is not shown) is formed. For the low-friction surface layers 111 and 113, for example, polyvinyl alcohol, polyacetal, fluororesin, polyethylene, nylon, or ultra-high molecular weight polyethylene can be used.

The slide member 87 is formed integrally in the shape of a container with an open top or in the shape of a low box. A pair of left and right side wall portions 125 and 127 are provided, and the pair of left and right side wall portions 125 and 127 are formed higher than the pair of front and rear wall portions 121 and 123 . The pair of front and rear walls 121 and 123 and the pair of left and right side walls 125 and 127 are smoothly connected to the bottom portion 119. 123 is connected to the upper end. The pair of left and right side wall portions 125 and 127 are formed with a pair of front and rear circular mounting holes 129 and 131 corresponding to the mounting holes 105 and 107 of the side wall portions 95 and 97 of the body portion 85, respectively.

The sliding member 87 is fitted on the lower side of the outer surface of the main body portion 85, the mounting bolt 133 is passed through the mounting hole 129 and the mounting hole 105 from the outside of the side wall portion 125, the nut 137 is attached to the mounting bolt 133 from the inside, and the side wall portion 127 is attached. A second hose moving device 77 can be constructed by passing a mounting bolt 135 through the mounting hole 131 and the mounting hole 107 from the outside and attaching a nut 139 to the mounting bolt 135 from the inside. Further, by removing the nuts 137 and 139 from the mounting bolts 133 and 135 and extracting the mounting bolts 133 and 135 from the mounting holes 105 and 107 and the mounting holes 129 and 131, the slide member 87 can be separated from the body portion 85, so that the slide member 87 can be separated from the body portion 85. Only the slide member 87 can be replaced when the bottom surface 141 of the member 87 is worn.

The second hose moving device 77 connects the pulling string 65 to the connection holes 115 formed in the pair of left and right side walls 95 and 97 of the main body 85, and places it on the reinforcing bar 67 at the concrete placing location. , the hose accommodating portions 81 and 83 are accommodated in the concrete pumping hose 53 for use. When the concrete pumping hose 53 is moved by a large amount, the pulling string 65 is pulled to slide the second hose moving device 77 on the reinforcing bar 67 . In order to slightly change the placement position of concrete, the position of the tip of the concrete pressure-feeding hose 53 is changed without pulling the tension string 65. In this case, the concrete pressure-feeding hose 53 has low friction. Since the surface layers 111 and 113 can be easily slid in the front-rear direction, the second hose-moving device 77 hardly slides on the reinforcing bars 67, and the second hose-moving device 77 does not slide on the reinforcing bars 67. The amount of slide movement is reduced. Further, the pulsation of the hose 53 for pumping concrete is not transmitted to the tool main body 79 due to sliding on the low wear layers 111 and 113 . Here, even if the instrument main body 79 or the slide member 87 is made of stainless steel, for example, the binding wire (not shown) binding the reinforcing bars 67 is not easily cut.

A modification of the low-friction surface layers 111 and 113 will be described with reference to FIG. Here, the surface portions of the hose accommodating portions 81 and 83 can also be made of the same resin material as the others, such as polyester resin or epoxy resin.

A low-friction surface layer (low-friction surface sheet or low-friction surface portion) 143 (the rear-side low-friction surface layer is not shown) provided in place of the low-friction surface layers 111 and 113 is provided on the hose accommodation portions 81 and 83. A plate-like body 145 made of a low-friction plastic material is curved along the hose accommodating portions 81 and 83 and fixed with bolts 147 . (Fig. 9a). An adhesive can also be used to fix the plate-like body 145 . Further, by fitting a surface member 149 made of a low-friction plastic material, which is previously formed into a curved shape corresponding to the hose housing portions 81 and 83, to the hose housing portions 81 and 83 and fixing them with bolts 147, low friction is achieved. A low-friction surface layer (low-friction surface sheet or low-friction surface portion) 143 can be constructed in place of the surface layers 111, 113 (Fig. 9b). An adhesive may also be used to fix the surface member 149 . The fixing of the plate-like body 145 or the surface member 149 with the bolts 147 can be performed by attaching nuts (not shown) to the bolts 147 protruding from the back side of the flanges 109a and 109b. Alternatively, a low-friction surface layer (low-friction surface sheet or low-friction surface portion) 143 may be configured by attaching segments 151 made of a low-friction plastic material to the hose housing portions 81 and 83 so as to cover them (Fig. 9c). A bolt or an adhesive can be used to fix the segment 151 . Plate-like body 145, surface member 149 and segment 151 can be made of low-friction plastic such as polyvinyl alcohol, polyacetal, fluororesin, polyethylene, nylon or ultra-high molecular weight polyethylene.

1, 77 Hose moving device 3, 79 Device body 29, 31 Support tower or column 33, 35 Hose housing support 37, 39 Friction reduction bearing 53 Concrete pumping hose 63, 141 Bottom surface 73, 75 Friction reduction Rotating rubber or resin rollers 81, 83 Hose accommodating portions 111, 113, 143 Low friction surface layer

Claims (6)

A hose moving device that moves with a hose on it,
a device body having a bottom surface formed as a slide surface; and a hose accommodating portion provided in the device body,
The hose accommodation portion includes a hose accommodation support portion formed in a V shape or a wide V shape so as to have downward slopes on both sides in the width direction, and the downward slope portions on both sides in the width direction of the hose accommodation support portion. and respectively provided rotating rollers . The rotating roller is provided in an intermediate portion of the descending inclined portion, A hose moving device according to claim 1, characterized in that: 3. The hose moving device according to claim 1, wherein the rotating rollers are provided so as to support both sides in the width direction of the lower side of the hose housed in the hose housing. 3. The hose storage support part according to claim 1, wherein the hose housing support part is formed of a metal rod. Hose transfer equipment. A hose moving device that moves with a hose on it,
A device body having a bottom surface formed as a slide surface, a hose support structure frame mounted inside the device body, and a hose housing portion provided in the hose support structure frame,
The hose support structure frame includes a pair of front and rear pipe-shaped support bodies, and a pair of left and right connection plates that connect ends of the pair of pipe-shaped support bodies,
The hose accommodation portion includes a hose accommodation support portion formed in a V shape or a wide V shape so as to have descending inclined portions on both sides in the width direction, and the descending inclined portions on both sides in the width direction of the hose accommodation support portion. and a rotating roller provided on each pipe-shaped support body. Hose transfer equipment. Each of the pipe-shaped support bodies is provided with a pair of left and right support towers or pillars, and the hose housing support is supported by the pair of support towers or pillars and between the support towers or pillars. According to claim 5, characterized in that it is provided in Hose transfer equipment.

Images