The method of demolishing a building includes self-propelling a demolition machine into the building, operating the demolition machine so as to form a movement hole at a floor part of an upper story, moving the demolition machine to the upper floor via the movement hole; moving the demolition machine to the highest floor by repeating the aforementioned operation; discharging the demolition waste downwardly through the movement holes.

BACKGROUND OF THE INVENTION 
   This invention relates to the scrapping method of constructions such as a building and a scrapping machine. When the constructions such as buildings are scrapped conventionally, the breaker and clasped crushing device are attached in the tip part of the drive arm of the backhoe, and the building is disassembled from the outside the building. 
   In the conventional scrapping method using the backhoe, the building can be disassembled only range that the tip part of the drive arm of the backhoe reaches, and the disassembled part is restricted. 
   Moreover, the breaker and clasped crushing device attached in the tip part of the drive arm can move only around the backhoe and to an outer direction. 
   Furthermore, installation of the backhoe and reservation of work space are needed for the outside of the building in order to disassemble a building from the outside of the building so that some troubles are happened and the operation troubles the neighbors. 
   SUMMARY OF THE INVENTION 
   Accordingly, it is an object of the invention to provide a scrapping method for constructions which can scrap using the scrapping machine on a building regardless of the height of the building. 
   It is another object of the invention to provide a scrapping method for constructions which can operate so as to place the demolition waste inside the building from a top of the building and to transport the scraping machine to an upper story easily, and the building is disassembled without securing, surrounding the building, installation space or work space for the machine. 
   It is a further object of the invention to provide a scrapping machine which can fully operate even if it has a small drive arm and body as a mini backhoe. 
   Novel features which are believed to be characteristic of the invention, both as to its organization and method of operation, together with further objects and advantages thereof, are described below with reference to the accompanying drawings in which preferred embodiments of the invention are illustrated as an example. 
   It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only, and are not intended as a definition of the limits of the invention. 


   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a flow showing a first embodiment of the present invention; 
       FIG. 2  is an explanatory view for moving a scrapping machine; 
       FIG. 3  is a side view of a scrapping machine; 
       FIG. 4  is a front view of a scrapping machine; 
       FIG. 5  is a top view of a scrapping machine; 
       FIG. 6  is a side view showing the way in which the clasped crushing device is attached; 
       FIG. 7  is an explanatory view showing the way in which a hole for moving is formed; 
       FIG. 8  is an explanatory view showing the way in which the scrapping machine moves to an upper floor; 
       FIG. 9  is an explanatory view showing the way in which the scrapping machine moves to a top floor; 
       FIG. 10  is an explanatory view showing the way in which the upper part of the building is scraped; 
       FIG. 11  is a flow showing a second embodiment of the present invention; 
       FIG. 12  is an explanatory view for moving a scrapping machine; 
       FIG. 13  is an explanatory view showing the way in which the demolition waste is discharged; 
       FIG. 14  is a flow showing a third embodiment of the present invention; 
       FIG. 15  is an explanatory view showing the way in which the scrapping machine moves to a top floor; 
       FIG. 16  is an explanatory view showing the way in which the demolition work is operated; 
       FIG. 17  is a flow showing a fourth embodiment of the present invention; 
       FIG. 18  is an explanatory view for moving a scrapping machine; 
       FIG. 19  is a top view of a scrapping machine; 
       FIG. 20  is a side view of a scrapping machine showing a fifth embodiment of the present invention; 
       FIG. 21  is a top view of a scrapping machine; 
       FIG. 22  is an explanatory view for moving a scrapping machine; 
       FIG. 23  is a side view of a scrapping machine showing a sixth embodiment of the present invention; 
       FIG. 24  is a top view of a scrapping machine; 
       FIG. 25  is an explanatory view of a mount; 
       FIG. 26  is a flow showing a seventh embodiment of the present invention; 
       FIG. 27  is an explanatory view showing the way in which the scrapping machine moves to an upper floor; 
       FIG. 28  is a top view of a scrapping machine; 
       FIG. 29  is a flow showing an eighth embodiment of the present invention; 
       FIG. 30  is an explanatory view showing the way in which the scrapping machine moves to an upper floor; 
       FIG. 31  is a top view of a scrapping machine; 
       FIG. 32  is a flow showing a ninth embodiment of the present invention; 
       FIG. 33  is an explanatory view showing the way in which the scrapping machine moves to an upper floor; 
       FIG. 34  is a side view of a scrapping machine; 
       FIG. 35  is a side view showing a tenth embodiment of the present invention; 
       FIG. 36  is a top view; 
       FIG. 37  is a front view; 
       FIG. 38  is an explanatory view showing the way in which extensible legs are stored; 
       FIG. 39  is an explanatory view showing the way in which the scrapping machine moves to an upper floor; 
       FIG. 40  is a side view showing an eleventh embodiment of the present invention; 
       FIG. 41  is a top view; 
       FIG. 42  is a front view; 
       FIG. 43  is a side view showing a twelfth embodiment of the present invention; 
       FIG. 44  is a top view; 
       FIG. 45  is a front view; 
       FIG. 46  is a side view showing a thirteenth embodiment of the present invention; 
       FIG. 47  is a top view; 
       FIG. 48  is a front view; 
       FIG. 49  is a side view showing a fourteenth embodiment of the present invention; 
       FIG. 50  is a top view; 
       FIG. 51  is an explanatory view showing the way in which the scrapping machine moves to an upper floor; 
       FIG. 52  is a side view showing a fifteenth embodiment of the present invention; 
       FIG. 53  is a top view; 
       FIG. 54  is an explanatory view showing the way in which the scrapping machine moves to an upper floor; 
       FIG. 55  is a side view showing a sixteenth embodiment of the present invention; 
       FIG. 56  is a top view; 
       FIG. 57  is a front view; 
       FIG. 58  is an explanatory view of a drive arm; 
       FIG. 59  is an explanatory view of a movement mechanism to forward-, backward-, left- and right directions; 
       FIG. 60  is a side view of an attachment for a crushing machine; 
       FIG. 61  is a top view of an attachment for a crushing machine; 
       FIG. 62  is an explanatory view showing the way in which a breaker is used; 
       FIG. 63  is an explanatory view showing the way in which a clasped crushing device is used; 
       FIG. 64  is an explanatory view showing the way in which extensible legs are extended; 
       FIG. 65  is an explanatory view showing the way in which a scrapping machine moves to an upper floor; 
       FIG. 66  is an explanatory view showing the way in which a scrapping machine moves through a hole; 
       FIG. 67  is a side view showing a seventeenth embodiment of the present invention; 
       FIG. 68  is a top view; 
       FIG. 69  is a front view; 
       FIG. 70  is an explanatory view showing the way in which a scrapping machine is hanged up into an elevator hole; 
       FIG. 71  is an explanatory view of an extensible base; 
       FIG. 72  is an explanatory view showing the way in which an extensible base is operated; 
       FIG. 73  is another side view; 
       FIG. 74  is a side view showing an eighteenth embodiment of the present invention; 
       FIG. 75  is a top view; 
       FIG. 76  is a front view; 
       FIG. 77  is a side view showing a nineteenth embodiment of the present invention; 
       FIG. 78  is a top view; 
       FIG. 79  is a front view; 
       FIG. 80  is a side view showing a twentieth embodiment of the present invention; 
       FIG. 81  is a top view; 
       FIG. 82  is a front view; 
       FIG. 83  is an explanatory view of a movement device for caterpillar; 
       FIG. 84  is an explanatory view showing the way in which a movement device for caterpillar works; and 
       FIG. 85  is another top view. 
   


   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   Preferred embodiments of the present invention are described in more detail below with reference to the accompanying drawings. 
   An understanding of the present invention may be best gained by reference to  FIGS. 1–10 .  FIGS. 1–10  illustrate a scrapping method of constructions such as a building in accordance with a first embodiment of the present invention. 
   The numeral  1  shows a step for moving a scrapping machine  4  for a building  2 , and the scrapping machine  4  self-propels inside through an opening  3  of the building  2 , the opening  3  being disassembled from the outside. The scrapping machine  4  of the building used at the movement process  1  is formed in substantially the same size as a mini backhoe. 
   As shown in  FIGS. 3–6 , the scrapping machine  4  comprises a body; a running device  8 ; a scrapping machine body  13 ; and extensible legs  16 . 
   The running device  8  is comprised of caterpillars  6  attached to both sides of the body  5 , capable of running the body  5 ; and a hydraulic drive device  7 , using in the hydraulic backhoe, driving the caterpillars  6 . 
   The scrapping machine body  13  has the almost same mechanism of the mini backhoe, having a drive arm  10  that is attached, capable of rotating horizontal direction. A breaker  11  and a clasped crushing device  12  are attached to a tip portion of the drive arm  10  respectively. 
   The extensible legs  16  using at least four hydraulic cylinders are attached to forward-, backward-, right- and left portions at a base  9  of the body  5  via two hydraulic cylinders  14  and  15 , capable of moving the base  9  up to an upper floor of the building  2 . 
   The scrapping machine  4  can run by driving hydraulic drive device  7  as well as the conventional mini backhoe, and it can operate the breaker  11  and the clasped crushing device  12  or the drive arm  10  from a drivers seat  17  of the scrapping machine body  13 . 
   Moreover, when the scrapping machine  4  moves to upper floor or works a higher place, the extensible legs  16  can expand and contract, and the hydraulic cylinders  14  and  15  can expand and contract. 
   The numeral  18  shows a step for forming a movement hole  20  which is formed at a floor part  19  of the upper floor by the scrapping machine  4  after the movement process  1 , the scrapping machine  4  can pass through the movement hole  20  and move to the upper floor. The breaker  11  attached to the tip portion of the drive arm  10  forms a hole  21 , as shown in  FIG. 7 , then the clasped crushing device  12  is attached to the tip portion of the drive arm  10 , and the floor part  19  is clasped and broken by the clasped crushing device  12 , and the movement hole  20  is formed. 
   The numeral  22  shows a step for moving the scrapping machine  4  to the upper floor via the movement hole  20 . In the movement process  22 , the scrapping machine  4  may move to the upper floor by four winches. As shown in  FIG. 8 , after the extensible legs  16  extend, the scrapping machine  4  passes the movement hole  20 . Then the bottom portion of the caterpillars  6  is placed at an upper portion of the floor part  19  of the upper floor, and the tip portion of the drive arm  10  is contacted at the floor part  19 . 
   After that, one of the extensible legs  16  is contracted and the hydraulic cylinders  14  and  15  are acted and moved to forward-, backward-, left- and right directions, the extensible leg  16  locates so as to be supported by the floor part  19 . After doing such work one by one and the extensible legs  16  locates so as to be supported by the floor part  19 , the caterpillars  6  is located on the floor part  19  via the operating of the hydraulic cylinders  14  and  15  and run on the floor part  19  of the upper floor. 
   As shown in  FIG. 9 , the numeral  23  shows a step for moving the scrapping machine  4  to the highest floor after the hole formation process  18  and movement process  22  are performed one by one. In this step, the hole formation process  18  is operated such that a support plate and support bar are arranged so as to locate the scrapping machine  4  above the movement hole  20  which is formed below when the movement hole  20  is formed at the same place as the movement hole  20  in lower floors. 
   On the other hand, when the movement hole  20  is formed at the different place of the movement hole  20  of the down stair, the movement hole  20  of the down stair leaves as it is. 
   As shown in  FIG. 10 , the numeral  24  shows a step for scrapping at the top part of the building  2  without scrapping the floor part located beneath the scrapping machine  4 , and the building is scrapped so as to place the demolition waste inside the building  2 . In this step  24 , the breaker  11  and clasped crushing device  12  are attached to the tip portion of the drive arm  10 , and the demolition work is carried out. 
   The numeral  26  shows a step for discharging the demolition waste  25  that produces at the scrapping process  24  through the movement hole  20  to the lower direction. In the discharging process  26 , the scrapping machine  4  of a building performs, and it is performed by hand. 
   The numeral  27  shows a step of the demolition work to the lower floor. In this step  27 , the scrapping machine  4  moves to the lower floor after the step  24  is performed, and the scrapping process  24  and discharging process  26  are performed one by one. The movement of the scrapping machine  4  is performed by extension and contraction of the extensible legs  16  and hydraulic cylinders  14  and  15 . 
   Other embodiments of the present invention will now be described with reference to  FIGS. 11–85 . In  FIGS. 11–85 , the same components as in the first embodiment described above with reference to  FIGS. 11–85  are designated by the same reference numerals and therefore will not be further explained in great detail. 
   A second embodiment of the present invention is shown in  FIGS. 11–13 . It is distinguished from the first embodiment in that a movement process  1 A that the scrapping machine  4  moves to the highest floor through an elevator hole  28  is performed, and a process  26 A for discharging the demolition waste through the elevator hole  28 . A scrapping method with the movement process  1 A and discharging process  26 A according to the second embodiment has similar advantages to that according to the first embodiment. 
   In addition, removal of an elevator and disassembling the entrance part of the elevator hole  28  are performed before the movement of the scrapping machine  4  through the elevator hole  28  is performed with four winches  29 . 
   A third embodiment of the present invention is shown in  FIGS. 14–16 . It is distinguished from the first embodiment in that a scrapping method is composed of a movement process  1 ; a forming process  18  for the first movement hole  20 ; a first movement process  22  to the upper floor; a forming process  18 A for the second movement hole  20 A; a second movement process  22  to the upper floor; a process  23 A for moving the scrapping machine  4  to the highest floor; a process  24 A for scrapping at the top part of the building  2 ; a process  27 A of the demolition work; and a process  27 B of the demolition work to the lower floor. 
   In the forming process  18 , the first movement hole  20  formed to move the scrapping machine  4  to the upper floor after the movement process  1  is performed. 
   Then the scrapping machine  4  moves through the first movement hole  20  in the first movement process  22 . 
   In the forming process  18 A, the second movement hole  20 A to move the scrapping machine  4  to the upper floor is formed on the upper floor portion located at a different place from the first movement hole  20 . 
   Then the scrapping machine  4  moves through the second movement hole  20 A in the second movement process  22 A. 
   Then the scrapping machine  4  moves to the highest floor of the building in the process  23 A after the forming process  18 , the first movement process  22 , the forming process  18 A and the second movement process  22 A are performed one by one. 
   After that, the scrapping machine  4  scraps so that the demolition waste is located inside the building, and it is discharged to the lower floor, and the scrapping machine  4  located on the floor or the demolition waste also scraps the floor part of the upper portion of the building in the process  24 A. 
   In the process  27 A of the demolition work, the demolition waste is discharged through the movement holes  20  and  20 A. The scrapping machine  4  scraps so that the demolition waste is located inside the building, and the demolition waste is discharged through the movement holes  20  and  20 A. Then the scrapping machine  4  located on the floor or the demolition waste also scraps the floor part. 
   Then the process  27 A is repeated, and the scrapping machine  4  scraps to the lower floor in the process  27 B of the demolition work. 
   A scrapping method according to the third embodiment has similar advantages to that according to the first embodiment. 
   A four embodiment of the present invention is shown in  FIGS. 17–19 . It is distinguished from the first embodiment in that a movement process  1 B is performed. In this process  1 B, a scrapping machine  4 A is attached winches  29  at forward-, backward-, left- and right portions thereof, and it moves to the roof part of the building  2  by the winches  29 . A scrapping method with the movement process  1 B according to the fourth embodiment may be operated. 
   In addition, the scrapping machine  4 A may be lifted up using the crane installed in the roof. 
   A fifth embodiment of the present invention is shown in  FIGS. 20–22 . It is distinguished from the first embodiment in that the extensible legs  16  using four hydraulic cylinders are attached to forward-, backward-, left- and right portions of the body  5  or the base  9  of the body  5 , capable of working with vertical movement, and winches  29  are attached to forward-, backward-, left- and right portions to the base  9 . A scrapping machine  4 B can move through the hole  28  and move to a roof part easily from the outside of a building. 
   A sixth embodiment of the present invention is shown in  FIGS. 23–25 . It is distinguished from the first embodiment in that the breaker  11  and clasped crushing device  12  are attached to the tip portion of the drive arm  10  via a mount  32  interposed a horizontal rotatable mechanism  30  and a vertical rotatable mechanism  31 , and four hooks  35  is attached to forward-, backward-, left- and right portions to the base  9 , attaching to engage pieces  34  which are attached to tip portions of wires  33 . A scrapping machine  4 C according to the sixth embodiment has similar advantages to that according to the fifth embodiment. 
   A seventh embodiment of the present invention is shown in  FIGS. 26–28 . It is distinguished from the first embodiment in that a scrapping machine  4 D which is not installing the extensible leg in the d-, backward-, left- and right portions of the base  9  can move to an upper directions, and the scrapping machine  4 D includes a extensible stand  40 , capable of lifting the end portion thereof by a hydraulic cylinder  39 , having guide plates  40   a  pivotably attached to both ends thereof. A scrapping method with movement process  22 B to the upper floor for a scrapping machine  4 D may be operated. 
   In addition, a guide plate  40   a  may be used at one end part of the extensible stand  40 . In this case, when the scrapping machine  4  is located on the extensible stand  40 , it may run on the floor part of the upper floor after the guide plate  40   a  rotates to an upper direction and raises, and it is located on the upper floor. 
   An eighth embodiment of the present invention is shown in  FIGS. 29–31 . It is distinguished from the first embodiment in that a movement process  1 C is performed. A scrapping machine  4 E is installed a winch  41 . A wire  42  of the winch  41  of scrapping machine  4 E is fixed to a building body via a tip part of an arm  43  installed in an upper part of the disassembled building  2 . Then the wire  42  is wound by the winch  41 . After that, the scrapping machine  4 E runs on the outer wall of the building  2 , and it moves to the roof part. 
   A scrapping method with movement process  1 C by a scrapping machine  4 E may be operated. 
   In addition, in this embodiment, the winch  41  is attached to the upper portion of the building, and the wire  42  can move slidably via a pulley attached to the tip portion of the arm  43 . 
   A ninth embodiment of the present invention is shown in  FIGS. 32–34 . It is distinguished from the first embodiment in that a scrapping machine  4 F has a support stand  45  with a hydraulic cylinder  44  which projects under the body  5 , the scrapping machine  4 F moves up using the extensible stand  40  in a movement process  22 C. A scrapping method with the movement process  22 C to the upper floor by a scrapping machine  4 F may be operated. 
   In this case, since the support stand  45  of the scrapping machine  4 F can expand and contract, the extensible stand  40  with a small stroke of expansion and contraction can be used. 
   A tenth embodiment of the present invention is shown in  FIGS. 35–39 . It is distinguished from the fifth embodiment in that a scrapping machine  4 G has the caterpillars  6  attached to the body  5  via two pairs of hydraulic cylinders  46 A, as a movement device for caterpillar, so as to project at a voluntary length and further comprises left and right of support members  47  for extensible legs which is formed in the shape of a bar; extensible legs  49 ; hydraulic cylinders  52  for storing the extensible legs; a pivotable boom  54 ; an attachment  56 ; and a crushing machine  57 . 
   The support members  47  are attached projectably to left and right sides of the upper portion rather than the top end portion of the body  5  by the hydraulic cylinders  46 , projecting to an outer direction rather than front and back ends of the caterpillars  6 . 
   The extensible legs  49  are supported pivotably by pivot pins  48  to the front and back ends of the support members  47 , having the hydraulic cylinders which is positioned the lower portion thereof located above the lower end portion of the caterpillars  6  in a standing and storing manner and positioned the lower portion of the caterpillars  6  located above the floor part  19  of the upper floor in a extending manner. 
   The hydraulic cylinders  52  store the extensible legs  49  on the support members  47  when in not use, one end thereof supported pivotably at a portion adjacent a center portion of the support members  47  by pivot pins  50 , and another end thereof supported pivotably at the extensible legs  49  by pivot pins  51 . 
   The pivotable boom  54  is attached pivotably to a tip portion of the drive arm  10  of the scrapping machine body  13  by the hydraulic cylinder  53  as the same as the conventional backhoe. 
   The attachment  56  is attached to a tip portion of the pivotable boom  54  so as to rotate by the hydraulic cylinder  55 . 
   The crushing machine  57 , such as, for example the breaker and clasped crushing device, is attached removably to the attachment  56 . 
   In the scrapping machine  4 G, the scrapping machine body  13  horizontally rotates, and the drive arm  10 , pivotable boom  54 , attachment  56 , crushing machine  57  are operated. The extensible legs  49  stand by operating the hydraulic cylinders  52  after the movement hole  20  is formed on the floor part of the upper floor. After that, the extensible legs  49  are extended, and the lower portion of the caterpillars  6  are positioned above the floor part  19  of the upper floor. 
   Then the hydraulic cylinders  46  as the movement device for caterpillar are operated, and the caterpillars  6  moves to an outward direction so as to be supported at the floor part at both sides of the movement hole  20 . 
   The extensible legs  49  extend, and the caterpillars  6  are supported on the floor part  19  of the upper floor. 
   Under this condition, after the movement hole  20  is formed at the floor part  19  of the next upper floor, the hydraulic cylinders  46  as a movement device for caterpillar is started to work, and the support members  47  project to the outer direction. 
   Next, after the extensible legs  49  expand, the lower parts of the extensible legs  49  touch, and the body  5  moves upwards a little. After that, the hydraulic cylinders  46  as the movement device for caterpillar are operated, and the caterpillars  6  are stored, and then the extensible legs  49  are expanded further, and the lower ends of the caterpillars  6  locate on the floor part  19  of the upper floor. Therefore, the scrapping machine  4 G moves upward one by one. 
   In addition, when support plates  58  are used to support the extensible legs  49 , it can cover a part of the movement hole  20  located at the extensible legs  49  when in movement to the upper floor. 
   An eleventh embodiment of the present invention is shown in  FIGS. 40–42 . It is distinguished from the tenth embodiment in that back ends of leg pieces  61  are pivoted the lower end of the extensible legs  49  by the pivot pins  59 , storing along the extensible legs  49  when in not use, operating by the hydraulic cylinders  60  so as to project to an outward direction when in use. A scrapping machine  4 H with the leg pieces  61 according to the eleventh embodiment has similar advantages to that according to the tenth embodiment, and the leg pieces  61  can be stored and projected so that the scrapping machine  4 H can be supported by the leg pieces  61  which supports around the movement hole  20  of the floor part  19  each floor and moves without the support plate. 
   A twelfth embodiment of the present invention is shown in  FIGS. 43–45 . It is distinguished from the first embodiment in that the extensible legs  49  located at forward-, backward-, left- and right portions are attached fixedly at forward- and backward ends of the support members  47 . 
   A scrapping machine  41  according to the twelfth embodiment has similar advantages to that according to the eleventh embodiment. 
   A thirteenth embodiment of the present invention is shown in  FIGS. 46–48 . It is distinguished from the twelfth embodiment in that a scrapping machine  4 J further includes a body  5 A having attachments  62  for support members of the extensible legs, positioning above the upper end portion of the caterpillars  6  and outside the front and back ends of the caterpillars  6 ; hydraulic cylinders  63  as the support members of the extensible legs, projecting to an outer direction to the attachments  62 ; and the extensible legs  49  at forward-, backward-, left- and right parts fixed to a tip portion of the hydraulic cylinders  63 . The scrapping machine  4 J according to the thirteenth embodiment has similar advantages to that according to the twelfth embodiment. 
   A fourteenth embodiment of the present invention is shown in  FIGS. 49–51 . It is distinguished from the twelfth embodiment in that the extensible legs  49  is attached fixedly to the attachments  62 , locating and attaching to the parts outwardly rather than the front and backward direction of the caterpillars  6 , at the body  5 A; extensible leg piece bodies  66  are attached rotatably to the lower parts of the lower extensible legs  49   a  via pivot pins  64 , having support pieces  65  attached rotatably to tip portions thereof by its weight; and extensible leg pieces  68  includes hydraulic cylinders  67  for rotating the extensible leg piece bodies, attaching rotatably so as to store and use. In a scrapping machine  4 K, the extensible leg pieces  68  projects outwardly, the extensible legs  49  extends, the caterpillars  6  projects outwardly, the extensible leg pieces  68  are stored, and the extensible legs  49  contract. Therefore, it can move through the movement hole  20  which is formed at the upper floor. 
   A fifteenth embodiment of the present invention is shown in  FIGS. 52–54 . It is distinguished from the fourteenth embodiment in that further comprises extensible leg pieces  68 A includes support members  50  attached to the lower portions of the front and backward lower extensible legs  49   a;  and the extensible leg piece bodies  66  attached so as to project outwardly via the hydraulic cylinders  67  rather than the both ends of the support members  50 . A scrapping machine  4 L according to the fifteenth embodiment has similar advantages to that according to the fourteenth embodiment. 
   A sixteenth embodiment of the present invention is shown in  FIGS. 55–66 . It is distinguished from the first embodiment in that a scrapping machine  4 M comprises the body  5 ; the running device  8  including the caterpillars  6  attached to both sides of the body  5 , capable of running the body  5  and the hydraulic drive device  7 , using in the hydraulic backhoe, driving the caterpillars  6 ; a scrapping machine body  13 A attached rotatably to the body  5  to a horizontal direction via a rotation device  100 , having a drivers seat  101 , a motor  102 , a hydraulic pump  103  and a drive arm  104 ; extensible legs  16 A attached to forward-, backward-, left- and right parts of the base  9  of the body  5  via a movement mechanisms  70  to forward-, backward-, left- and right directions with hydraulic cylinders  69  and  69   a,  having the hydraulic cylinders capable of moving the body  5  on the upper floor; and attachment for a crushing machine  71  attached to the tip portion of the drive arm  104 , having the crushing machine including the breaker  11  and a clasped crushing device  12  attached detachably at the tip portion thereof which drives rotatably. 
   As shown in  FIG. 58 , the drive arm  104  comprises a standing-up link  74  which rotates in the vertical direction by standing-up hydraulic cylinder  73  to a frame  72  of the scrapping machine body  13 A; and a rotation boom  77  which rotates by a rotation hydraulic cylinder  76  pivoted rotatably by a pivot pin  75  so as to contain in the upper part of the standing-up link  74 . 
   As shown in  FIG. 59 , the movement mechanisms  70  to forward-, backward-, left- and right directions further comprises the hydraulic cylinders  69  to forward-, backward directions attached a back end portion thereof to the forward-, backward-, left- and right parts of the plate  9  of the body  5  to fix slide movement members  78 , fixing the fixed portions of the extensible legs  16 A to the tip portions of extensible legs  79 ; and the hydraulic cylinders  69   a,  allowing the hydraulic cylinders  69  to move to left- and right directions. 
   As shown in  FIGS. 60 and 61 , the attachment  71  for a crushing machine further includes a hydraulic motor  80  for horizontal rotation; a rotation support body  82 ; a hydraulic motor  83  for vertical rotation; and a mount  85 . 
   The hydraulic motor  80  is attached to a tip portion of the rotation boom  77  of the drive arm  68 . 
   The rotation support body  82  is attached the level portion thereof to a drive shaft  81  of the hydraulic motor  80 , having a mount surface formed in the shape of a L-letter. 
   The hydraulic motor  83  is provided fixedly at a vertical portion of the rotation support body  82 . 
   The mount  85  is provided fixedly at a drive shaft  84  of the hydraulic motor  83 , attaching the crushing machine such as the breaker  11  and clasped crushing device  12 . 
   The scrapping machine  4 M operates the hydraulic drive device  7  as well as the conventional hydraulic backhoe etc. and drives the running device  8 . Then it moves into the building  2  which is disassembled. 
   Next, the breaker  11  is attached to the mount  85  of the attachment  71 , and the standing-up link  74  and the rotation boom  77  rotates by driving the standing-up hydraulic cylinder  73  and rotation hydraulic cylinder  76 . In addition, the breaker  11  is located at a easy working state after it rotates to a horizontal and vertical directions by driving the hydraulic motor  80  and  83 , a hole  86  with a size which can use the clasped crushing device  12  as shown in  FIG. 62  is formed at the floor part of the upper floor. 
   After that, the breaker  11  is removed from the mount  85  of the attachment  71 , and the clasped crushing device  12  is attached. Then the clasped crushing device  12  and drive arm  104  are moved, and the hole  86  formed in upper floor is expanded one by one, and a hole  86 A of the size which the scrapping machine  4 M can pass, as shown in  FIG. 63 . 
   In addition, the extensible legs  16 A are extended during such working, and the work for forming the hole may be operated. 
   After the hole  86 A is formed, the extensible legs  16 A are extended, the lower part of he caterpillars  6  passes through the hole  86 A and located at the upper portion of the floor part  19  as shown in  FIG. 64 , and the tip portion of the drive arm  104  is pressed against the floor surface. 
   Then one of the extensible legs  16 A is contracted, and hydraulic cylinders  69  and  69   a  are operated. The extensible legs  16 A is moved to a portion which touches the lower part of the extensible legs  16 A to the floor part, and the lower part of the extensible legs  16 A is located on the floor part. 
   As such work is done one by one, after the extensible legs  16 A are supported on the floor part as shown in  FIG. 65 , any two of the extensible legs  16 A are located so as to float on the floor part  19  by the drive arm  104  as shown in  FIG. 66 . After that, two extensible legs  16 A are extended and contracted, and other two extensible legs  16 A are extended and contracted. After the scrapping machine  4 M is moved to the position which can do a self-run, it runs on the floor part. 
   Such works are repeated, after the scrapping machine  4 M moves to the highest floor, it operates the expansion and contraction of the extensible legs  16 A and movement and rotation of the clasped crushing device  12 , and the demolition work can be operated. 
   A seventeenth embodiment of the present invention is shown in  FIGS. 67–73 . It is distinguished from the sixteenth embodiment in that a scrapping machine is formed in the size of a mini backhoe so that it can move upwards using the elevator hole  28 ; the extensible legs  16 A are attached extendably to forward-, backward-, left- and right portions of the base  9  of the body  5 , capable of adjusting the height; and winches  87  are attached to forward-, backward-, left- and right portions of the base  9  of the body  5 . 
   A scrapping machine  4 N according to the seventeenth embodiment has similar advantages to that according to the first embodiment, and it can move through the elevator hole  28  as shown in  FIG. 70 , and it can move upwards by a extensible base  89  having rotatable guide plates  89   a.  The extensible base  89  can extends on the floor surface of the upper floor by a hydraulic cylinder  88  as shown in  FIGS. 71 and 72 . In addition, the guide plate  89   a  may be provided at one side of the extensible base  89 . Moreover, in this embodiment, when the extensible base  89  is used to move upward, a scrapping machine  4 Q without the movement mechanism to forward-, backward-, left- and right directions and the extensible legs may be used as shown in  FIGS. 73 . 
   Moreover, after the scrapping machine  4 Q is located on the extensible base  89 , the guide plate  89   a  rotates upward as shown in a dot line, and the extensible base  89  is lifted up. Then, the guide plate  89   a  is located so as to support at the floor part of the upper floor, and the scrapping machine  4 Q may move to the floor part though the hole  86 A. 
   An eighteenth embodiment of the present invention is shown in  FIGS. 74–76 . It is distinguished from the seventeenth embodiment in that engaging pieces  93  are fixed to the forward-, backward-, left- and right portions of the plate  9  of the body  5 , engaging with catching pieces  92  attached to tip portions of wires  91  of winches  91 . A scrapping machine  4 O according to the eighteenth embodiment has similar advantages to that according to the seventeenth embodiment. 
   A nineteenth embodiment of the present invention is shown in  FIGS. 77–79 . It is distinguished from the seventeenth embodiment in that a scrapping machine body  13 B having the running device  8 , the drive arm  104 , movement mechanisms  70 , the extensible legs  16 A, attachment  71  and a control equipment  94 , without the driver's seat; and a remote control equipment  96  using radio control or the remote control. The remote control equipment  96  includes a movement control equipment  95  which can operate the control equipment  94 . A scrapping machine  4 P can be operated and used by operating the movement control equipment  95  in a safe place. 
   A twentieth embodiment of the present invention is shown in  FIGS. 80–85 . It is distinguished from the sixteenth embodiment in that the caterpillars  6 A includes a support bodies  6   a  for the caterpillar, having guide pins  98  inserted slidably into guide holes  97  located at both sides of the body  5 ; and movement devices  99  for caterpillar, providing the hydraulic cylinder and the like which allows the support bodies  6   a  to slide in the right-and-left direction. In a scrapping machine  4 R, the extensible legs  16 A are extended, and it passes through the hole  86 A and moves to the upper floor. After that, the movement devices  99  are driven, and the caterpillars  6 A projects to the right-and-left direction and drives on the floor part. 
   Therefore, the movement device for allowing the extensible legs  16 A to move to forward-, backward-, left- and right directions is not need so that its structure is simple. 
   Moreover, as shown in  FIG. 85 , when the upward-moving method with the extensible base  89  is operated, the scrapping machine  4 S without the extensible legs has similar advantages to that according to the twentieth embodiment. 
   In addition, the running device  8  which is used the hydraulic drive device  7  is explained in each of embodiment of the present invention, and the running device may be used in engine, electric motor and the like. Also air cylinder instead of the hydraulic cylinder may be used. 
   As set forth above, the advantages of the invention are as follows: 
   (1) A scrapping method of constructions, comprising steps of moving a scrapping machine of a building, placing the scrapping machine by being self-propelled into the building, the scrapping machine being capable of receiving one of a breaker and a clasped crushing device to a tip portion of a drive arm; forming a movement hole which is formed at a floor part of an upper floor by the scrapping machine after the movement process, the scrapping machine being capable of passing through the movement hole and moving to the upper floor; moving the scrapping machine to the upper floor via the movement hole; moving the scrapping machine to the highest floor after the hole formation process and the movement process to the upper floor are performed one by one; scrapping at a top part of the building without scrapping the floor part located beneath the scrapping machine, the building being scrapped so as to place demolition waste inside the building; discharging the demolition waste that is produced by the scrapping process through the movement hole in the lower direction; and performing the demolition work on the lower floor after the scrapping machine moves to the lower floor after scrapping at a top part of the building, and the scrapping process for the top part of the building and discharging process are performed one by one so that it can scrap using the scrapping machine without a drive arm having the same size as the height of the building, regardless of the height of the building. 
   Therefore, scrapping can be done efficiently with the scrapping machine in any building. 
   (2) As discussed above (1), it can scrap from inside the building so that the demolition waste is located inside the building. 
   Therefore, there are no broader installation space and workspace around the building, and it is easy to start work comfortably. Also it does not cause trouble around the circumference of the building. 
   (3) As discussed above (2), since the scrapping is carried out inside of the building, it can efficiently prevent the flow of coarse particulate generated when scrapping from going outside. 
   (4) As discussed above (1), since it can dissolve from the upper part of the building to the lower part thereof one by one, it can dissolve safely. 
   (5) The scrapping machine can move upward one by one via the hole. Therefore, it is easy to work with moving to the upper floor. 
   (6) As discussed above (5), it can use the conventional backhoe that is converted, it can move to the upper floor without miniaturization especially.