JP2000110369A - Jack device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jack device capable of remarkably simplifying and preparing the attaching working of a bridging member, and corresponding to the linear disposition and orthogonal disposition of a plurality of the bridging members. SOLUTION: A jack support 1 has a male screw part on the outer periphery, has a base 10 on one end of an axial direction, and the other end side is a free end. A movable body 2 includes a base body part 20 and bridging connection parts 21-24. The base body part 20 is combined in the jack post 1, and can move along the axial direction of the jack post 1. The bridging connection pats 21-24 are parts for connecting for post members, which are provided with the circumference of the base body part 20 at different angles. Tightening means 31, 32 are screw-coupled on the male screw part of the jack post 1, the movable body 2 is fixed on the jack post 1 or fixing is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jack device for receiving building materials in building construction work.

[0002]

2. Description of the Related Art A jack device of this type is used as a means for receiving and supporting a lower end portion of a building material and adjusting the height of the building material in a construction work of a house or the like.
The conventional jack device has a structure in which a rotor having a female screw portion is screwed to a jack support having an external thread portion on the outer periphery, and the rotor is moved up and down on the jack support.

When assembling a scaffold using the above-described jack device, first, the jack device is installed on the ground,
The lower end of the building material is fitted to the tip of the jack support and is supported by the rotor. As the building material, a pipe having a circular cross section is used.

Next, one end of the root member is temporarily fixed to the outer periphery of the building material, and a jack device for supporting another building material is arranged at the other end position of the root member. Next, another building material is fitted into the jack device, and the other end of the rooted member is temporarily fixed to the outer periphery of the fitted building material.

If the height of the building material assembled this time is different from the height of the previously set building material, the rotor provided in the jack device is rotated on the jack support to rotate the rotor. Adjust the height of the building material.

[0006] Thereafter, the rooting members arranged between adjacent building materials are fixed to each of the building materials. The rooted member is connected to a height of, for example, about 30 cm or less from the ground surface. The root has, for example, a connecting member made of a clamp or a wedge at both ends, and is fastened and fixed to the circular outer periphery of the building material by this connecting portion.

[0007] The above-mentioned conventional jack device and the problem of the root-linking member are related to the connection-fixing of the root-linking member to the building material at a height of, for example, about 30 cm or less from the ground surface. ) Must be tightened and fixed to the building material, which results in forcing the worker to work in a middle posture. For this reason, the physical burden on the worker has been extremely large.

[0008] Another problem is that, when connecting the rooted member to the building material, the connecting portion formed by the clamp of the rooted member is fastened and fixed to the cross-sectional outer periphery of the building material. The rooted member rotates freely around the axis of the building material, and the position of the rooted member with respect to the building material cannot be specified.

That is, the building material must always keep a fixed distance around the building. Therefore, the plurality of rooted members connected between the building materials must be arranged in a straight line so as to be substantially parallel to the wall surface of the building. However, conventionally, since the rooted member can freely rotate around the axis of the building material, and the position of the rooted member with respect to the building material cannot be specified, it takes much time to arrange the rooted member in a straight line. Cost.

[0010] At the corner of the building, the arrangement of the building materials and the root members arranged along one wall surface and the arrangement of the building materials and the root members arranged along the other wall surface are arranged. And the arrays must be orthogonal to each other.

However, conventionally, the rooted member can freely rotate around the axis of the building material, and the position of the rooted member with respect to the building material cannot be specified. The arrangement of the building material and the root member arranged along the arrangement and the arrangement of the building material and the root member arranged along the other wall surface may be orthogonal to each other,
was difficult.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a jack device which can greatly simplify and facilitate the work of attaching a rooted member.

Another object of the present invention is to provide a jack device in which a plurality of rooted members can be arranged simply and reliably in a straight line.

Still another object of the present invention is to provide, for example,
When it is necessary to make the arrangement of one of the building materials and rooted members orthogonal to the arrangement of the other building materials and rooted members, such as at the corner of a building, simply and reliably. An object of the present invention is to provide a jack device that can be orthogonalized.

[0015]

In order to solve the above-mentioned problems, a jack device according to the present invention comprises a jack support,
It includes at least one movable body and fastening means. The jack support has a male screw portion on the outer periphery, a base at one end in the axial direction, and a free end at the other end.

The movable body includes a base portion and a plurality of rooted connecting portions. The base portion is combined with the jack support and is movable along an axial direction of the jack support. The plurality of root connection portions are portions for connecting the root connection members, and are provided around the base at different angles from each other.

The tightening means is screwed to the male screw portion of the jack post, and fixes the movable body to the jack post or releases the fixing.

The jack device according to the present invention constitutes a scaffolding device together with the building material and the rooted member. Construction materials
It is connected to the free end provided on the jack post of the jack device. The rooting member is connected to the rooting connection of the jack device.

Here, since the jack support has a base at one end in the axial direction and the other end is a free end, the base of the jack support is installed on the ground, and the other end which is a free end is provided. In addition, building materials can be combined by means such as fitting.

The jack device includes a movable body. The movable body includes a base. The base portion is combined with the jack support and can move along the axial direction of the jack support. Therefore, the height position of the building material fitted on the other end side of the jack support can be determined according to the position of the movable body on the jack support.

The jack device further includes fastening means. This fastening means is screwed to the male thread of the jack post. Thus, by rotating the fastening means on the jack post, it can be moved on the jack post in its axial direction. The position of the movable body on the jack support can be adjusted by adjusting the position by rotating the fastening means. By adjusting the position of the movable body, the height position of the building material is also adjusted.

Further, the fastening means fixes the movable body to the jack support. Therefore, the adjusted position of the movable body and the height position of the building material can be fixed by operating the fastening means.

Further, the fastening means releases the fixation of the movable body to the jack support. Therefore, the positions of the movable body and the building material can be adjusted to any positions at any time as needed.

The movable body includes a plurality of root connection portions.
The root connection part is a part for connecting the root connection members. Therefore, the root member can be attached to the movable body via the root connection part. The root member is connected to the building material via a movable body and a jack support.

Unlike the conventional method, the root-linking member does not need to be connected to the building material, but only has to be connected to the root-link connection portion provided on the movable body. For this reason, the connection work of the root member to the building material becomes extremely easy.

[0026] Each of the plurality of rooted links is provided around the base at different angles. Therefore, by setting the mutual arrangement angle of the root connection members to a predetermined value, the arrangement direction and the angle of the root connection member can be automatically set. For example, in a jack device used in a situation where a plurality of root-entangled members are arranged in a straight line so as to be substantially parallel to the wall of the building, the two root-entangled connecting portions are set at an angular interval of about 180 degrees. Use a movable body. Thus, the plurality of root-trapping members can be simply and reliably arranged in a straight line.

In addition, an arrangement of building materials and root members arranged along one wall surface, such as a corner of a building, and a building material and root members arranged along the other wall surface. When it is necessary to make the arrangement of the members orthogonal to each other, a movable body in which two adjacent rooted connecting portions are set at an angular interval of about 90 degrees is used. Thereby, at the corner of the building, the arrangement of the building materials and the root-entangled members arranged along one wall surface and the arrangement of the building materials and the root-entangled members arranged along the other wall surface It can be made simple and reliable.

The jack device according to the present invention can take various modes. For example, there may be one movable body and four rooted connection portions, and each of the four rooted connection portions may be provided around the base portion at angular intervals of about 90 degrees. In this case, a jack device that can cope with both the linear arrangement and the orthogonal arrangement can be obtained.

In another aspect, there may be one movable body and two rooted connections and two rooted connections at about 90 degrees around the base. In this case, at the corner of the building, the arrangement of the building materials and the root members arranged along one wall surface and the arrangement of the building materials and the root members arranged along the other wall surface Can be obtained so as to be orthogonal to each other.

In still another embodiment, there may be one movable body and two root connection parts, and two root connection parts may be provided at an angular interval of about 180 degrees around the base part. In this case, a jack device suitable for arranging a plurality of rooted members in a straight line is obtained.

In still another embodiment, two movable bodies may be provided. Two root linking portions are provided for each of the movable bodies, and each is provided at an angular interval of about 90 degrees around the base portion. The two mobiles are combined with one another such that the rooted connections are arranged at angular intervals of about 90 degrees around the jack strut. According to this aspect, it is possible to obtain a jack device capable of coping with both the linear arrangement and the orthogonal arrangement by combining the two movable bodies.

In the case where two movable bodies are provided, as a mode different from the above, two root connection parts are provided for each of the movable bodies, and each of the root connection parts is provided by about 180 degrees around the base part. It may be provided at an angular interval of degrees. The two movable bodies are combined with each other such that each of the rooted connections is disposed at an angular spacing of about 90 degrees around the jack strut. Also in this case, by combining the two movable bodies, it is possible to obtain a jack device that can support both the linear arrangement and the orthogonal arrangement.

The present invention further provides a preferred mode, a different mode, and a connecting mode of the movable body constituting the jack device.
Also disclosed are preferred embodiments of the rooting member combined with the jack device, and a scaffolding device including the jack device and the rooting member.

Other objects, configurations and advantages of the present invention will be described in more detail with reference to the accompanying drawings. The drawings are merely examples.

[0035]

FIG. 1 is an exploded perspective view of a jack device according to the present invention, and FIG. 2 is a perspective view of the jack device shown in FIG. 1 in an assembled state. As shown in the drawing, the jack device according to the present invention includes a jack support 1, a movable body 2,
And fastening means 31 and 32. Jack support 1
It has a male screw portion on the outer circumference, a base 10 at one end in the axial direction, and a free end at the other end.

The movable body 2 includes a base portion 20 and connecting portions 21, 22, 23, and 24. The base 20 is
It is combined with the jack support 1 and can move along the axial direction of the jack support 1. Root connection parts 21 to 24
It is a portion connecting the rooted members, and is provided around the base portion 20 at different angles from each other.

In this embodiment, the root connection portion 21
The root connection portion 22 is provided in the X direction on the outer peripheral surface of the base portion 20, the root connection portion 22 is provided in the Y direction orthogonal to the root connection portion 21, and the root connection portion 23 is orthogonal to the root connection portion 22. The root connection part 24 is provided in the X direction, and is provided in the −Y direction orthogonal to the root connection part 23. Further, of the root connection portions 21 to 24, the root connection portion 2
1 and 23 are located on the outer peripheral surface on one end side of the base portion 20;
Provided at the same height position, the root connection portions 22 and 24
Are provided at the same height position on the outer peripheral surface on the other end side of the base portion 20.

The fastening means 31 and 32 are screwed to the male screw portion of the jack column 1 to fix the movable body 2 to the jack column 1 or release the fixing. The illustrated fastening means 31, 32 are constituted by two rotors. The two rotors constituting the fastening means 31, 32 have operation rods 310, 320, and are screwed to the jack column 1 so as to sandwich the movable body 2 from above and below.

FIG. 3 is an enlarged plan view of a movable body used in the jack device according to the present invention, and FIG. 4 is a sectional view taken along line 4-4 in FIG. Hereinafter, the structure of the movable body will be described in more detail with reference to FIGS.

Each of the root connection portions 21 to 24
It has root bearing holes 250, 260, 270 and 280. In this embodiment, each of the root connection portions 21 to 24 is provided at both ends of the bent plates 25, 26, 27 and 28,
It is attached to the base part 20 by a joining means such as welding. Each of the bent plates 25 to 28 has a gap between itself and the side surface of the base 20, and these gaps serve as root-receiving holes 250 to 280.

The root connection portion 21 includes a bottom plate 211 and
And two side plates 212 and 213. Side plate 212,
213 are erected on opposite sides of the bottom plate 211 with an interval D therebetween, and the interval D is rooted to form a guide space. The bottom plate 211 is provided with one screw hole 210 used for fastening and fixing the rooted member.

The root connection portion 22 includes a bottom plate 221 and
And two side plates 222 and 223. Side plate 222,
223 are erected on opposite sides of the bottom plate 221 with an interval D therebetween, and the interval D is rooted to form a guide space. The bottom plate 221 is provided with two screw holes 220 used for fastening and fixing the rooted member.

The root connection portion 23 includes a bottom plate 231 and
And two side plates 232 and 233. Side plate 232,
233 are erected on opposite sides of the bottom plate 231 with an interval D therebetween, and the interval D is rooted to form a guide space. The bottom plate 231 is provided with one screw hole 230 used for fastening and fixing the rooted member.

The root connection portion 24 includes a bottom plate 241 and
And two side plates 242 and 243. Side plate 242,
243 are erected on opposite sides of the bottom plate 241 with an interval D therebetween, and the interval D is rooted to form a guide space. The bottom plate 241 is provided with two screw holes 240 used for fastening and fixing the rooted member.

In the embodiment, the number of the screw holes 210 and 230 is one and the number of the screw holes 220 and 240 is two.
The number can be arbitrarily changed. For example, screw hole 21
The number of 0 and 230 may be two.

Root connection portions 21 to 2 shown in FIGS.
No. 4 has a square cross section. This cross-sectional shape corresponds to a root-entangled member having a square cross-sectional shape. The cross-sectional shape of the root connection portions 21 to 24 can be arbitrarily changed corresponding to the cross-sectional shape of the root connection member. For example, when the cross-sectional shape of the root-entanglement member is circular, the cross-sectional shape of the root-entanglement connecting portions 21 to 24 is arc-shaped.

FIG. 5 is an enlarged partial sectional view of the jack device shown in FIGS. Referring to the figure, the fastening means 3
1 has a ring-shaped step 311 at one end in the axial direction. The step 311 receives the lower end of the base 20 of the movable body 2 and plays a role in determining the height position of the movable body 2.

The fastening means 32 has a ring-shaped step 321 at one end in the axial direction, and a step 322 at the other end. The step portion 321 plays a role of receiving the lower end portion of the building material fitted into the jack support 1. Step 32
2 serves to press the upper end of the base 20 of the movable body 2 and fix the movable body 2 to the jack support 1.

The fastening means 31 and 32 are screwed to the male screw portion of the jack column 1 to fix the movable body 2 to the jack column 1 or release the fixing. The illustrated fastening means 31, 32 are constituted by two rotors. The two rotors have operation rods 310 and 320, and are screwed to the jack support 1 so as to sandwich the movable body 2 from above and below.

Although not shown, the jack device according to the present invention can take various forms in addition to the forms described above. For example, the movable body includes two rooted connections, each of which is about 1
It may be provided at 80 degrees. In yet another aspect,
The movable body may include two rooted connections, each of the rooted connections being provided at about 90 degrees around the base.

FIG. 6 is a perspective view of a rooted member to be combined with the jack device shown in FIGS. 1 to 5, and FIG.
FIG. 8 is a sectional view taken along line -7. The illustrated rooted member has a main rod 40, a protrusion 41, and a connecting means 42. The main rod portion 40 has an upper surface 4 at both ends in the length direction.
It has a hole 400 penetrating from 01 to the bottom surface 402. The projections 41 are inserted into root receiving holes (see FIGS. 3 and 4) of the movable body, and are provided at both ends of the main rod 40. The connecting means 42 penetrates the hole 400 at both ends in the length direction of the main rod 40.

The projection 41 is formed by a connecting means such as welding.
It is fixed to both ends of the main rod 40. In the figure, a bolt is used for the connecting means 42 and the upper surface 401 of the main rod portion 40 is used.
To be screwed. The connecting means 42 has a stopper 421 at the lower end in the axial direction. According to this structure,
The connecting means 42 can be prevented from falling off from the main rod 40. Although not shown, a nut may be provided on the upper surface 401 of the main rod portion 40 and a bolt may be coupled to the nut. In the figure, one connecting means 42 is provided, but the number thereof can be arbitrarily changed according to the number of root receiving holes of the root connecting part.

FIG. 8 is a view showing a connecting means different from the connecting means shown in FIG. 8 has a shaft 420, a pin 422, and a spring mechanism (not shown) at the lower end in the axial direction. The pin 422 receives the spring pressure in the p1 direction from the spring mechanism, and normally protrudes outside the shaft 420. However, when the pin 422 receives a force in the p2 direction against the spring pressure, the pin 422 is housed inside the shaft 420. Is done. The root-entanglement member shown in FIG. 6 and the root-entanglement connection portion of the movable body may be connected by such connection means 42.

The jack device according to the present invention constitutes a scaffolding device together with the building material and the rooted member. Construction materials
The jack device is fitted into a free end provided on a jack support. The rooting member is connected to the rooting connection of the jack device.

FIG. 9 is a perspective view of a scaffolding device in which the jack device shown in FIGS. 1 to 5 is combined with the root link member shown in FIGS. 6 to 8, and FIG. FIG. However, FIGS. 9 and 10 show a part of the arrangement of the building materials and the rooted members arranged along the wall surface 91 of the building 9 in the scaffolding device.

In the figure, the jack device 51 is installed at a distance ΔG from the wall surface 91 of the building 9. At this time, the root connection portions 22 and 24 of the jack device 51 are
It is positioned substantially parallel to the wall surface 91 of the building 9, and the root connection portions 21 and 23 are positioned substantially perpendicular to the wall surface 91 of the building 9. One end of the rooting member 71 is connected to the rooting connection portion 24 of the jack device 51, and one end of the rooting member 72 is connected to the rooting connection portion 22 of the jack device 51. Further, one end of the rooting member 73 is connected to the rooting connection portion 21 of the jack device 51, and the other end is connected to the rooting connection portion 23 of the jack device 52.

Here, since the jack support 1 has a base 10 at one end in the axial direction and the other end is a free end, the base 10 of the jack support 1 is installed on the ground and becomes a free end. The building material 6 can be combined with the other end by means such as fitting.

The base 20 of the movable body 2 constituting the jack devices 51 and 52 is combined with the jack support 1 and can move along the axial direction of the jack support 1. Therefore, the height position of the building material 6 fitted on the other end side of the jack support 1 can be determined according to the position of the movable body 2 on the jack support 1.

Further, the fastening means 31 of the jack device,
32 is screwed to the male screw portion of the jack support 1, so that by rotating the jack support 1,
On the jack support 1 it can be moved in its axial direction.

In the embodiment, the fastening means 31, 32 are
It is composed of two rotors. Tightening means 3
1 is arranged below the movable body 2, and the fastening means 32 is arranged above the movable body 2. Therefore, the position of the movable body 2 on the jack column 1 is adjusted by the position adjustment by the rotation of the fastening means 31, and the height position of the building material 6 is adjusted.

The tightening means 32, together with the tightening means 31, is rotated on the jack column 1 so as to sandwich the movable body 2 from above and below, thereby adjusting the adjusted movable body 2
Can be securely fixed. According to this structure, the root members 71 to 73 are securely fixed to the jack support 1 via the movable body 2. For this reason, even when an external force acts on the scaffolding device, a scaffolding device with high mechanical strength that is less likely to shake or twist is obtained.

Further, the fastening means 31 and 32 release the fixing of the movable body 2 to the jack post 1. Therefore,
The positions of the movable body 2 and the building material 6 can be adjusted to any positions at any time as needed.

The movable body 2 includes rooted connecting portions 21 to 24. The root connection portions 21 to 24 are portions that connect the root connection members. Therefore, the rooting member can be attached to the movable body 2 via the rooting connecting portion. The root members 71 to 73 are connected to the building material 6 via the movable body 2 and the jack support 1. Rooted members 71-7
3 does not need to be connected to the building material 6, unlike the related art, and only needs to be connected to the root connection portions 21 to 24 provided in the movable body 2. For this reason, the connection work of the root members 71 to 73 to the building material 6 becomes extremely easy.

In the embodiment, each of the root connection portions 21 to 24 is provided at an angular interval of about 90 degrees around the base portion 20, so that the opposing positions of the base portion 20 (angular intervals of approximately 180 degrees) are provided. 2), the two root connection portions 24,
By arranging the rooting members 71 and 72 on 22,
The root members 71 and 72 can be arranged in a straight line.

Further, the root connection parts 21 and 24 having an angular interval of about 90 degrees with respect to the root connection parts 22 and 24.
In addition, by connecting the root holding member 73, the root holding member 73 and the root holding members 71, 72 can be made orthogonal to each other.

FIG. 11 is an enlarged partial sectional view of the jack device 51 of the scaffold device shown in FIGS. Here, the connecting portion between the jack device 51 and the root holding member 73 will be described in more detail. A connecting portion between the jack device 51 and the root members 71 and 72, and a jack device 52
The description of the connection portion between the and the rooting member 73 will be omitted.

The root connection portion 21 is provided in the root receiving hole 2.
50. The rooting member 73 combined with the jack device 51 having this configuration has protrusions 41 at both ends as shown in FIG. Therefore, in the jack device 51, by inserting the projection 41 of the root holding member 73 into the root holding hole 250, the root holding member 73 can be easily positioned on the root connection portion 21 of the jack device 51. .

Further, in the embodiment, the root connection portion 21
Includes a bottom plate 211 and two side plates 212 and 213 (see FIG. 3). The side plates 212 and 213 are erected on opposite sides of the bottom plate 211 with an interval D therebetween, and the interval D is rooted to form a guide space (see FIG. 3). In the case of a jack device having a root connection portion having this structure, both side surfaces 212 and 213 of the root connection portion 21 are provided.
Then, the root holding member 73 is accurately positioned by the root holding guide space therebetween.

The rooting member 73 thus positioned is screwed from the upper side into the screw hole provided in the bottom plate 211 of the rooting connecting portion 21 using the screwing tool to tighten the connecting means 42. By doing so, one end is securely fixed to the jack device 51.

FIG. 12 is a front view showing another embodiment of the jack device according to the present invention. The jack device shown in FIG. 12 is characterized by the first movable body 2A and the second movable body 2A.
B. The first movable body 2A is provided with root connection portions 21 and 23 at an angular interval of about 180 degrees around the base portion 20, and the second movable body 2B is provided with root connection portions 22 and 24. It is provided around the base part 20 at an angular interval of about 180 degrees. The first movable body 2 </ b> A and the second movable body 2 </ b> B are configured such that the rooted connecting portions 21 and 23 and the rooted connecting portions 22 and 24
They are combined with each other so as to be arranged at an angular interval of 0 degrees.

In the case of this embodiment, by using one of the first movable body 2A and the second movable body 2B, a jack device suitable for arranging a plurality of rooted members in a straight line is obtained. Can be Further, by combining the first movable body 2A and the second movable body 2B, it is possible to obtain a jack device capable of coping with both the linear arrangement and the orthogonal arrangement.

Although not shown, each of the first movable body 2A and the second movable body 2B may be provided with two rooted connecting portions around the base portion at an angular interval of about 90 degrees. . In the case of this embodiment, by using any one of the first movable body 2A and the second movable body 2B, the building material and the roots are arranged along one wall surface at the corner of the building. A jack device suitable for orthogonalizing the arrangement of the members and the arrangement of the building material and the rooted members arranged along the other wall surface is obtained. Also, the first movable body 2A and the second movable body 2B are shown in FIG. 1 by being combined with each other such that the rooted connection portions are arranged at an angular interval of about 90 degrees around the jack support 1. The same effects as those of the embodiment are obtained.

FIG. 13 is a front view showing still another embodiment of the jack device according to the present invention. In the drawings, the same components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals. A feature of the jack device shown in FIG. 13 is that each of the connecting portions 21 to 24 of the movable body 2 is constituted by a wedge receiving portion.
Four wedge receiving portions are provided, each of which is arranged on the outer peripheral surface of the base portion 20 at an angular interval of about 90 degrees from each other.

FIG. 14 is a front view of the rooting member combined with the jack device shown in FIG. As shown in the drawing, this root-linking member has wedges 44 at both ends in the longitudinal direction of the main rod portion 40.

FIG. 15 shows the jack device shown in FIG.
FIG. 15 is an enlarged view showing a combination structure with the root-linking member shown in FIG. 14. As shown in the figure, a wedge 44 of a rooted member is driven into the wedge receiving portion 24.

FIG. 16 is a front view showing still another embodiment of the jack device according to the present invention. In the drawings, the same components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals. The feature of the jack device shown in FIG. 16 is that each of the root connection portions 21 to 24 is formed by a tubular receiving portion that receives the pipe connection mechanism 8. Four tubular receiving portions are provided, each of which is arranged on the outer peripheral surface of the base portion 20 at an angular interval of about 90 degrees from each other. As the pipe connection mechanism 8 combined with the tubular receiving portion, the one disclosed in Japanese Patent Application Laid-Open No. 8-86087 can be employed.

FIG. 17 is a front view of a rooting member used in combination with the jack device shown in FIG. The root link member is provided with a pipe connection mechanism 8 that forms a coupling portion 45 at both ends in the longitudinal direction of the main rod portion 40.

FIG. 18 is an enlarged partial cross-sectional view showing a pipe connecting mechanism constituting a connecting portion. Pipe connection mechanism 8
Includes a movable pin 81 and a spring 82. Movable pin 81
Are bent in the same direction at both ends with an interval therebetween, and are introduced into the insertion portion 80 through holes 801 and 802 provided in the insertion portion 80 so as to be able to be taken in and out freely. The spring 82
It is attached to one end of the movable pin 81 and applies a tension spring pressure to the movable pin 81. One end of the spring 82 is
And is received by a receiving plate 83 integrated with the receiving member. After the movable pin 81 is pushed out in the direction of arrow b1 against the spring pressure of the spring 83 and then rotated as shown by arrow c3, the tip of the movable pin 81 can be removed from the hole 802.

FIG. 19 shows the jack device 5 shown in FIG.
FIG. 18 is a diagram showing a combination of the above and the rooting member 7 shown in FIGS. In order to connect the root member 7 to the jack device 5, the insertion portion of the pipe connection mechanism 8 constituting the coupling portion 45 is inserted into the root connection portion 24 formed by the tubular receiving portion. Then, the movable pin 81 is passed through a hole 240 provided in the
Is inserted into the inside of the connecting portion 24.

FIG. 20 is a cross-sectional view showing a connection state between the pipe connection mechanism 8 and the root connection portion 24 in the assembly structure shown in FIG. As shown in the drawing, the insertion portion 80 constituting the pipe connection mechanism 8 is inserted into the root connection portion 24. The tip of the movable pin 81 of the pipe connection mechanism 8 is connected to the hole 2
It is inserted into the hole 802 of the insertion portion 80 through the hole 40. As a result, the root connection portion 24 and the insertion portion 80 are connected.

In order to release the connection, in FIG. 20, the movable pin 81 may be pushed out in the direction of the arrow b1 against the spring pressure of the spring 82 and then rotated as shown by the arrow c3.

The advantage of the pipe connection mechanism 8 is that even a person who is not familiar with the work can connect and fix the rooting member 7 to the jack device 5 very easily and quickly without using tools. That can be done.

FIG. 21 is a perspective view showing another example of the rooting member used in combination with the jack device according to the present invention, and FIG. 22 is an enlarged sectional view taken along line 22-22 of FIG. The feature of this embodiment is that two members 40A, 40A
B is that one end side in the longitudinal direction is combined so as to be able to expand and contract in the longitudinal direction as shown by arrows a1 and a2. A fixing means 43 is provided between the member 40A and the member 40B.
The expansion and contraction operation between A and 40B is allowed, and the expansion and contraction operation is prohibited by rotating the camera as shown by the arrow c1.

Although not shown, each of the members 40A and 40B may be provided with either a wedge (see FIG. 14) or a pipe connection mechanism (see FIGS. 17 and 18) instead of the projection 41. . When the wedge member is employed, the wedge member is combined with the jack device shown in FIG. 13, and when the pipe connection mechanism is employed, the root member is combined with the jack device shown in FIG.

A bolt is used as the connecting means 42 and is screwed to the upper surfaces of the main rods 40A and 40B. A nut is attached to the upper surfaces of the main rods 40A and 40B by means such as welding. A bolt may be connected to the nut. In the figure, two connecting means 42 are provided, but it is needless to say that the number thereof can be arbitrarily changed according to the number of root receiving holes of the root connecting part.

Referring to FIG. 22, the member 40A has the hole 4
41, a protrusion 442, and a nut 443. The hole 441 is provided at one longitudinal end of the member 40A. The protrusion 442 is disposed above the hole 441, and is fixed to the outer surface of the member 40A by a coupling means such as welding. The nut 443 is arranged inside the protruding portion 442 and is fixed by coupling means such as welding.
Although not shown, the nut 443 may be directly fixed to the outer surface of the member 40A by, for example, welding.

The fixing means 43 has a retaining 431 at the lower end in the axial direction, and is screwed to the nut 443.
According to this structure, it is possible to prevent the fixing means 43 from falling off the nut 443. In the figure, two fixing means 43 are provided, but the number thereof can be arbitrarily changed as needed. In the drawing, a thumb screw is used for the fixing means 43, but a bolt, a countersunk screw or the like may be used as an exception.

FIG. 23 is an enlarged sectional view showing another example of the rooted member shown in FIG. In the figure, the same components as those shown in FIG. 22 are denoted by the same reference numerals. The feature of the embodiment shown in FIG.
3 is screwed at two places on the upper surface and the lower surface of the member 40A and the member 40B.

In FIG. 22, the member 40B has a hole 444
Having. The holes 444 penetrate from the upper surface to the lower surface of the member 40B, and are provided at intervals along the longitudinal direction. The hole 441 of the member 40A is provided at a position corresponding to the hole 444 of the member 40B, and penetrates from the upper surface to the lower surface of the member 40A. The fixing means 43 includes two nuts 443 provided on the upper and lower surfaces of the member 40A.
Is screwed to.

In the embodiment, the protrusion 442 and the nut 443
Is provided on the upper surface of the member 40A, and the nut 443 is provided on the lower surface of the member 40A. Although not shown, the protrusion 442 is formed on the upper surface of the member 40A.
The combination of the nut 443 may be replaced by the nut 443, or the combination of the protrusion 442 and the nut 443 may be replaced on the lower surface of the member 40A.

FIG. 24 is a plan view of a scaffolding device in which the jack device according to the present invention is combined with the rooting member shown in FIG. In the figure, the same components as those shown in FIG. 10 are denoted by the same reference numerals.

The rooting member 74 can adjust the longitudinal dimension d by expanding and contracting the members 40A and 40B in the longitudinal direction as shown by arrows a1 and a2 (FIG. 2).
1). Therefore, even when the length dimension or the depth dimension of the building 9 does not correspond to the fixed length dimension of the length 7 of the fixed length dimension, one side 91 side of the length direction X of the building 9 or On one side surface 92 side in the depth direction Y, the position of the building material can be accurately positioned at a predetermined position. Therefore, the gap between the scaffolding device and the building 9 can be set to the predetermined size ΔG.

In the example shown in FIG.
Is used at a corner of the scaffolding device, but may be used at an intermediate portion of the scaffolding device.

[0094]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide a jack device capable of remarkably simplifying and facilitating the work of attaching the root-trapping member. (B) It is possible to provide a jack device capable of simply and surely arranging a plurality of root members in a straight line. (C) At the corner of the building, the arrangement of the building material and the rooted members arranged along one wall surface and the arrangement of the building material and the rooted members arranged along the other wall surface ,
It is possible to provide a jack device that can be simply and surely orthogonalized.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a jack device according to the present invention.

FIG. 2 is a perspective view of the jack device shown in FIG. 1 in an assembled state.

FIG. 3 is an enlarged plan view of a movable body used in the jack device according to the present invention.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

FIG. 5 is an enlarged partial sectional view of the jack device shown in FIG. 2;

FIG. 6 is a perspective view of a rooting member combined with the jack device shown in FIGS. 1 to 5;

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6;

FIG. 8 is a view showing a connecting means different from the connecting means shown in FIG. 7;

FIG. 9 is a perspective view of a scaffolding device in which the jack device shown in FIGS. 1 to 5 and the rooting member shown in FIGS. 6 to 8 are combined.

FIG. 10 is a plan view of the scaffold device shown in FIG.

FIG. 11 is an enlarged partial sectional view of the jack device of the scaffold device shown in FIGS.

FIG. 12 is an exploded perspective view showing another embodiment of the jack device according to the present invention.

FIG. 13 is a front view showing still another embodiment of the jack device according to the present invention.

FIG. 14 is a front view of a rooting member combined with the jack device shown in FIG. 13;

FIG. 15 is an enlarged view showing a combination structure of the jack device shown in FIG. 13 and the root-trapping member shown in FIG.

FIG. 16 is a front view showing still another embodiment of the jack device according to the present invention.

FIG. 17 is a front view of a rooted member combined with the jack device shown in FIG. 16;

FIG. 18 is an enlarged cross-sectional view of a connection mechanism used for the root member shown in FIG.

FIG. 19 is an enlarged view showing a combined structure of the jack device shown in FIG. 16 and the root catch member shown in FIG. 17;

20 is a cross-sectional view showing a connection state between a connection mechanism and a tubular receiving portion in the assembly structure shown in FIG. 19;

FIG. 21 is a perspective view showing another example of a rooted member used in combination with the jack device according to the present invention.

FIG. 22 is an enlarged sectional view taken along line 22-22 of FIG. 21;

FIG. 23 is an enlarged cross-sectional view showing another example of the rooting member shown in FIG. 21.

FIG. 24 is a plan view of a scaffolding device in which the jack device according to the present invention is combined with the root link member shown in FIG. 20.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Jack support 10 Base 2 Movable body 20 Base part 21-24 Root connection part 31, 32 Tightening means 3 Pin 5 Jack device 6 Building material

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naohiko Harada 2-9-9 Hikonari, Misato-shi, Saitama 9-72 (72) Yukio Harada 1-7-4 Nakasone, Yoshikawa-shi, Saitama F-term (reference) 2E177 AA13 CA04 CC03 CC13 CC17

Claims (10)

[Claims] 1. A jack device including a jack support, at least one movable body, and fastening means, wherein the jack support has a male screw portion on an outer periphery and a base at one end in an axial direction. The other end side is a free end. The movable body includes a base portion and a plurality of rooted connecting portions, and the base portion is combined with the jack support, and extends along the axial direction of the jack support. Wherein each of the root connection portions is a portion connecting the root members, and is provided around the base portion at different angles from each other; and the tightening means includes the male member of the jack support. A jack device that is screw-coupled to a screw portion and fixes or releases the movable body to the jack support. 2. The jack device according to claim 1, wherein the number of the movable bodies is one, and the number of the root connection portions is four, and each of the number is about 90 around the base portion. A jack device provided at angular intervals every degree. 3. The jack device according to claim 1, wherein the number of the movable bodies is one, and the number of the root-linking connection parts is two or three. Jack device provided at an angular interval of about 90 degrees or about 180 degrees. 4. The jack device according to claim 1, wherein the number of the movable bodies is two, and the rooted connecting portion is two for each of the movable bodies.
And each is provided at an angular interval of about 90 degrees or about 180 degrees around the base portion, and the two movable bodies are arranged such that each of the rooted connection portions is arranged around the jack strut. Jack devices that are combined with each other so as to be arranged at angular intervals of about 90 degrees. 5. The jack device according to claim 1, wherein the root connection portion has a root reception hole. 6. The jack device according to claim 5, wherein the root connection portion includes a bottom plate and two side plates, wherein the side plates are spaced apart from each other, and A jack device which is erected on opposite sides of a bottom plate, and wherein the interval is rooted and forms a guide space. 7. The jack device according to claim 1, wherein the root connection portion is formed by a wedge receiving portion. 8. The jack device according to claim 1, wherein the root connection portion is constituted by a tubular receiving portion. 9. A root supporting member coupled to the jack device according to claim 5 or 6, wherein the both ends have projections inserted into the root receiving holes. 10. A scaffolding device including a jack device, a building material, and a rooted member, wherein the jack device is any one of claims 1 to 8; A material is connected to the free end provided on the jack post of the jack device, and the root member is coupled to the root connection portion of the jack device.