JP4910205B2 - Fall prevention tool and fall prevention method - Google Patents

Description

  The present invention relates to a tool for preventing overturning, in which a box-shaped container whose height can be adjusted is accommodated in the gap between the upper surface of the fixture and the ceiling in order to prevent the fixture such as a fixture placed indoors from falling. And a fall prevention method.

  Conventionally, various proposals have been made in order to prevent furniture, bookcases, office lockers and the like from falling down. For example, in Patent Document 1, male screws having different winding directions are provided on the outer surfaces of both ends of a rod-shaped member, and two types of upper and lower pedestals provided with female screws on the inner surface are respectively provided at both ends of the rod-shaped member. A so-called tension rod-type tipping prevention tool that is screwed together has been proposed. This tipping prevention tool moves in the direction in which the pedestals at both ends are separated from each other by rotating the rod-shaped member. For this reason, when the rod-shaped member is placed vertically, one pedestal is placed on the upper surface of the fixture, the other pedestal is brought into contact with the ceiling, and the rod-shaped member is rotated, the pedestals at both ends move away from each other. Therefore, the upper surface and ceiling of the fixture are strongly pressed, and the fixture can be prevented from falling due to a strong shake caused by an earthquake or the like.

  JP-A-8-317826

  However, the conventional tension rod type anti-tip tool prevents the appliance from overturning by constantly pressing the upper surface and ceiling of the fixture, but the extension rod receives a strong lateral force due to strong vibration such as an earthquake. There was a problem that it would come off and the fixture could not be prevented from falling.

  In general, if an article placed on the upper surface of a fixture is subject to strong shaking such as an earthquake, the item will pop out from between the rod-shaped member and the upper and lower pedestals. There was also a problem that was impossible if assumed.

  The object of the present invention has been made in view of the above-mentioned circumstances, and the main object of the present invention is that it is not necessary to constantly press the upper surface and ceiling of the fixture strongly, unlike the conventional tension rod type fall prevention device. An object of the present invention is to provide a tipping prevention tool and a tipping prevention method that do not fall off due to strong shaking such as an earthquake even if there is a gap between the top surface and the ceiling.

  Another object of the present invention is to provide a tool for preventing a fall from preventing a stored article from popping out even when a strong shaking such as an earthquake occurs.

  In order to solve the above-described problems and achieve the object, according to the first aspect of the fall prevention device according to the present invention, the fall prevention device prevents the fall of the fixture by being placed on the upper surface of the fixture. A tool comprising length adjusting means for adjusting an axial length, and an inner wall surface provided with a plurality of columnar bodies erected on the fixture and an insertion portion into which each of the columnar bodies is inserted. And an outer cover for assisting the standing of the columnar body.

  In order to solve the above-described problems and achieve the object, according to the fall prevention tool according to the present invention, the columnar body is a cylindrical body that is removably inserted into the insertion portion. And a columnar body that is removably inserted into the cylindrical body.

  In order to solve the above-described problems and achieve the object, according to the fall prevention tool according to the present invention, the length adjusting means inserts the column body into the cylindrical body. The sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length, and the column body is locked to the cylindrical body by locking means. To do.

  In order to solve the above-described problems and achieve the object, according to the fall prevention tool according to the present invention, the columnar body has a female screw on an inner wall surface, and is inserted into and removed from the insertion portion. It is comprised from the cylindrical body inserted freely, and the pillar body which equips an outer wall surface with an external thread, and is detachably screwed to the said cylindrical body.

  In order to solve the above-mentioned problems and achieve the object, according to the fall prevention tool according to the present invention, the length adjusting means inserts the column body into the cylindrical body. The male screw is screwed into the female screw so that the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length, and the column body is formed into the cylindrical shape. It is characterized by being locked to the body with locking means.

  In order to solve the above-mentioned problems and achieve the object, according to the fall prevention tool according to the present invention, the length adjusting means inserts the column body into the cylindrical body, The male screw is screwed into the female screw so that the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length.

  In order to solve the above-described problems and achieve the object, according to the fall prevention tool according to the present invention, the locking means is a screw, and the screw is removed from the side surface of the cylindrical body. It is characterized by screwing and pressing the tip of the screw against the side surface of the column body to lock the column body to the cylindrical body.

  In order to solve the above-described problems and achieve the object, according to the fall prevention tool according to the present invention, the locking means is a screw, and the screw is removed from the side surface of the cylindrical body. The column body is fixed to the cylindrical body by screwing and screwing the screw into a side surface of the column body.

  In order to solve the above-described problems and achieve the object, the overturn prevention tool according to the present invention is characterized in that a bottom plate portion is provided on the outer cover.

  In order to solve the above-described problems and achieve the object, the overturn prevention tool according to the present invention is characterized in that a lower anti-slip portion is provided in the bottom plate portion.

  In order to solve the above-described problems and achieve the object, the overturn prevention tool according to the present invention is according to claim 11, wherein the lower anti-slip portion comprises a lower mesh plate, and the lower mesh plate is It sticks on the outer surface of a baseplate part.

  In order to solve the above-described problems and achieve the object, the overturn prevention tool according to the present invention is characterized in that a lid portion for covering the outer cover body is provided according to claim 12.

  In order to solve the above-described problems and achieve the object, the overturn prevention tool according to the present invention is characterized in that an upper slip prevention portion is provided on the lid portion.

  In order to solve the above-mentioned problems and achieve the object, the overturn prevention tool according to the present invention is characterized in that the upper anti-slip portion fixes the flat plate and the upper net plate, and the lid It is mounted on the part.

  In order to solve the above-described problems and achieve the object, the overturn prevention tool according to the present invention is the bottom plate portion, the lower anti-slip portion, the lid portion, and the upper anti-slip portion according to claim 15. The pillars are provided with marks corresponding to the sum of the thicknesses of the respective parts.

  In order to solve the above-described problems and achieve the object, according to the fall prevention tool of the present invention, the columnar body is provided with a male screw on one outer side of the one end and the other end. A cylindrical body provided with a reverse male screw on the outer peripheral surface, removably inserted into the insertion portion, and a female screw provided on the inner wall surface, and detachably screwed to the outer peripheral surface at one end of the cylindrical body. The upper pedestal includes a reverse pedestal provided on the inner wall surface and detachably screwed to the outer peripheral surface of the other end of the cylindrical body.

  In order to solve the above-described problems and achieve the object, the overturn prevention tool according to the present invention is as set forth in claim 17, wherein the length adjusting means connects the upper base to the one end of the cylindrical body. The lower pedestal is screwed to the other end of the cylindrical body, and the cylindrical body is rotated so that the axial length of the upper pedestal, the axial length of the lower pedestal, and the cylindrical shape are rotated. The sum of the axial length of the exposed part of the body is adjusted to a predetermined length.

  In order to solve the above-described problems and achieve the object, the fall prevention tool according to the present invention is the fall prevention tool according to claim 18, wherein the fall prevention tool is one of cardboard, wood board, metal plate, or a combination thereof. It is characterized by comprising.

  In order to solve the above-described problems and achieve the object, the fall prevention tool according to the present invention is characterized in that the outer wall surface of the fall prevention tool is covered with a decorative board.

  In order to solve the above-mentioned problems and achieve the object, the fall prevention method according to the present invention is according to claim 20, wherein the fall prevention prevents the fall of the fixture by being placed on the upper surface of the fixture. A method for preventing overturn using a tool, wherein the columnar body is composed of a cylindrical body and a columnar body that is detachably inserted into the tubular body and is erected on the fixture. And a fall prevention tool comprising an outer cover body that assists the standing of the columnar body by providing an insertion portion into which each of the columnar body is inserted on the upper surface of the fixture, and the columnar body is formed into the cylindrical shape. Inserted into the body, the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length, and the column body is locked to the cylindrical body with locking means Thus, the furniture is prevented from falling.

  In order to solve the above-described problems and achieve the object, the fall prevention method according to the present invention is according to claim 21 and is placed on the upper surface of the fixture to prevent the fall of the fixture. A fall-preventing method using a tool, which is a columnar body standing on the fixture and having a female screw on the inner wall surface and a male screw on the outer wall surface and detachably screwed to the cylindrical member And a plurality of columnar bodies, and an outer covering body that assists the standing of the columnar body by providing an insertion portion into which each of the columnar bodies is inserted on the inner wall surface. The column body is inserted into the cylindrical body, and the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length. The male screw is screwed into the female screw, and the column body is fixed to the cylindrical body by a locking means, so that the fixture can be turned over. Characterized in that it stop.

  In order to solve the above-described problems and achieve the object, the fall prevention method according to the present invention is according to claim 22 and is placed on the upper surface of the fixture to prevent the fall of the fixture. A fall-preventing method using a tool, which is a columnar body standing on the fixture and having a female screw on the inner wall surface and a male screw on the outer wall surface and detachably screwed to the cylindrical member And a plurality of columnar bodies, and an outer covering body that assists the standing of the columnar body by providing an insertion portion into which each of the columnar bodies is inserted on the inner wall surface. The column body is inserted into the cylindrical body, and the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length. The male screw is screwed into the female screw to prevent the fixture from overturning.

  In order to solve the above-described problems and achieve the object, the fall prevention method according to the present invention is the fall prevention device according to claim 23, wherein the fall prevention tool includes a bottom plate portion and a lower slip prevention portion on the outer cover. And a cover part covering the outer cover body and an upper slip prevention part placed on the cover part are provided, and the axial length of the cylindrical body and the axial length of the exposed part of the column body After adjusting the sum to a predetermined length, the columnar body has a mark corresponding to the sum of the thicknesses of the bottom plate portion, the lid portion, the upper anti-slip portion and the lower anti-slip portion. The columnar body is pasted on a boundary surface to be inserted into the body, and the column body is reinserted into the cylindrical body so that the mark is hidden.

  In order to solve the above-described problems and achieve the object, the fall prevention method according to the present invention, according to claim 24, is mounted on the upper surface of the fixture to prevent the fall of the fixture. A fall-preventing method using a tool, wherein the cylindrical body is erected on the fixture, has a male screw on one end outer surface and a reverse male screw on the other outer peripheral surface, and a female screw on the inner wall surface. An upper pedestal that is detachably screwed to the outer peripheral surface of one end of the cylindrical body, and a lower portion that is detachably screwed to the outer peripheral surface of the other end of the cylindrical body with an internal female wall on the inner wall surface. An overturn prevention tool comprising: a plurality of columnar bodies constituted by a pedestal; and an outer cover body that assists the standing of the columnar bodies by providing an insertion portion into which each of the columnar bodies is inserted on an inner wall surface. Place on the upper surface of the fixture, screw the upper pedestal to one end of the cylindrical body, By screwing into the other end of the cylindrical body and rotating the cylindrical body, the axial length of the upper pedestal, the axial length of the lower pedestal, and the axial length of the exposed portion of the cylindrical body Is adjusted to a predetermined length to prevent the furniture from falling.

  According to the present invention, it is not necessary to constantly push the upper surface and ceiling of the fixture strongly, unlike the conventional tension rod type overturn prevention device, and even if there is a gap between the upper surface and the ceiling of the fixture, it is strong like an earthquake. A fall prevention tool and a fall prevention method are obtained that do not fall off due to shaking.

  In addition, according to the present invention, it is possible to obtain a tipping prevention tool in which a stored article does not pop out even when a strong shaking such as an earthquake occurs.

(First embodiment)
Embodiments of the overturn prevention tool according to the present invention will be described below in detail with reference to the drawings. FIG. 1 and FIG. 2 are views showing a fixture to which a fall prevention tool of the first embodiment of the present invention is attached, FIG. 1 is a front view, and FIG. 2 is a side view. The fall prevention tool 1 includes a rectangular tube 10 as an “outer casing”, four large cylinders as “insertion portions”, a first columnar body 30, a second columnar body 40, and a third cylinder It is composed of a columnar body 50 and a fourth columnar body 60. The first columnar body 30 includes a first middle cylinder 31 as a “tubular body”, a first small cylinder 32 as a “columnar body”, and a first screw 33. The second columnar body 40 includes a second middle cylinder 41, a second small cylinder 42, and a second screw 43. The fourth columnar body 60 includes a fourth middle cylinder 61, a fourth small cylinder 62, and a fourth screw 63. The third columnar body 50 is not illustrated, but has a similar configuration. The square cylinder 10 is a cylinder having a substantially rectangular cross section, and the large cylinder, the middle cylinder, and the small cylinder are each a cylinder having a circular cross section. The fixture 8 has a front surface 80, an upper surface 82, a lower surface 84, a side surface A 86, a side surface B 87, and a back surface 88.

  Four large cylinders are respectively fixed to the four corners of the inner wall surface of the rectangular tube 10 with an adhesive or a double-sided adhesive tape. A columnar body is inserted into each large cylinder. That is, the first columnar body 30, the second columnar body 40, the third columnar body, and the fourth columnar body 60 are removably inserted into each large cylinder. The first columnar body 30 is configured such that the first small cylinder 32 is removably inserted into the first middle cylinder 31, and the lower end of the first middle cylinder 31 and the upper end of the first small cylinder 32 are The first intermediate cylinder 31 and the first small cylinder 32 are connected to each other by adjusting the length between the first intermediate cylinder 31 and the first small cylinder 32. The first middle cylinder 31 and the first small cylinder 32 are locked by pressing the first screw 33 screwed into the side surface of the first middle cylinder 32 against the side surface of the first small cylinder 32 or This is done by screwing into the side. The second columnar body 40, the third columnar body 50, and the fourth columnar body 60 have the same structure. The fixture 8 is placed on the floor surface 90 of the room 9 and is placed so that the back surface 88 is in contact with the wall surface 94.

  On the upper surface 82 of the fixture 8, the rectangular tube 10, the four large cylinders, the first columnar body 30, the second columnar body 40, the third columnar body 50, and the fourth columnar body 60 are provided. The fall prevention tool 1 is placed, and the lengths of the first columnar body 30, the second columnar body 40, the third columnar body 50, and the fourth columnar body 60 are set to the upper surface 82 of the fixture 8. By making the distance between the ceiling 92 and the ceiling 92 match, the fall prevention tool 1 placed on the upper surface 82 of the fixture 8 is configured to contact the ceiling 82 substantially.

  When strong shaking such as an earthquake occurs in the above state, the fixture 8 receives a force in a direction in which the back surface 88 is separated from the wall surface 94 with the point P at the end of the lower surface 84 in contact with the floor surface 90 as a center point. However, the upper end portion of the fourth small cylinder 62 of the fourth columnar body 60 of the fall prevention tool 1 and the upper end portion of the third small cylinder of the third columnar body are caught by the ceiling 92, and the back surface 88 of the fixture 8 is There is no separation from the wall 94. Therefore, the fixture 8 can be prevented from falling by the tipping prevention tool 1. In this case, even if the length of each columnar body is slightly shorter than the distance between the upper surface 82 of the fixture 8 and the ceiling 92, the effect of preventing the fall does not change. Details will be described later.

  Square tube 10, four large cylinders, first middle cylinder 31, first small cylinder 32, second middle cylinder 41, second small cylinder 42, and third middle cylinder The third small cylinder, the fourth middle cylinder 61, and the fourth small cylinder 62 are all made of cardboard for the purpose of weight reduction. Also, metals such as wood and aluminum are used to increase the strength. In some cases, these corrugated cardboard, wood and metal are used in combination. The first small cylinder 32, the second small cylinder 42, the third small cylinder, and the fourth small cylinder 62 all have a cylindrical shape in cross section. It doesn't matter.

  FIG. 3 is an explanatory diagram for explaining that the fixture is prevented from falling by the tipping prevention tool of the first embodiment. As shown in FIG. 3 (a), when strong shaking due to an earthquake or the like occurs, the fixture 8 rotates and falls as indicated by a two-dot chain line around the point P on the lower surface 84 of the fixture 8 if there is no ceiling 92. Begin to. In this case, the point S at the upper end of the small cylinder 62 of the fourth columnar body 60 and the upper end of the third columnar body of the fourth columnar body 60 of the fall prevention tool 1 draws an arc trajectory centering on the P point. That is, the point S before falling is the point S ′ in the case of FIG. The locus of this point S passes through the upper side of the ceiling 92 as shown by the two-dot chain line in FIG. As the fall proceeds further, as indicated by the two-dot chain line in FIG. The point S becomes a point S ″ at a location almost the same height as the ceiling 92, and thereafter falls below the ceiling 92. In this way, as the fixture 8 falls, the point falls. The locus of S draws a locus of an arc indicated by a point S ′ to a point S ″ and a two-dot chain line. Moreover, the trajectory of the arc of SS′-S ″ is located above the ceiling 92. The above description is based on the trajectory of the point S when the fixture 8 is overturned when the ceiling 92 is not present. Actually, due to the presence of the ceiling 92, the upper end portion of the small cylinder 62 of the fourth columnar body 60 and the upper end portion of the third cylindrical body of the third columnar body are caught by the ceiling 92 due to the two-dot chain line. Therefore, the fixture 8 will not fall over even if a strong shake due to an earthquake or the like is generated by the fall prevention tool 1.

  Even when the length of each columnar body is slightly shorter than the distance between the upper surface 82 of the fixture 8 and the ceiling 92, the upper end of the small cylinder 62 of the fourth columnar body 60 of the fall prevention tool 1 and the first When a part of the arc of the trajectory SS′-S ″ of the point S at the upper end of the small cylinder 3 of the columnar body protrudes above the ceiling 92, the fixture 8 can be prevented from falling. Each columnar body is removably inserted into each large cylinder, and the large cylinder is fixed to the inner wall surface of the square tube, so that each columnar body that touches the ceiling 92 and prevents the fixture from falling down is Even if there is a strong shaking due to an earthquake, etc., it will not come off and fall down, and even if there is a gap between each columnar body and the ceiling 92, it will not fall off due to a strong shaking due to an earthquake etc. The fall prevention tool 1 is always a fixture 8 even if strong shaking occurs due to an earthquake or the like. It is possible to prevent a fall.

  FIG. 4 is a perspective view of the tipping prevention tool of the first embodiment of the present invention, and FIG. 5 is a side view of the tipping prevention tool. The fall prevention tool 1 includes a rectangular tube 10, a first large cylinder 22, a second large cylinder 24, a third large cylinder 26, a fourth large cylinder 28, and a first columnar body 30. , Second columnar body 40, third columnar body 50, and fourth columnar body 60. The first columnar body 30 includes a first middle cylinder 31, a first small cylinder 32, and a first screw 33. The second columnar body 40 includes a second middle cylinder 41, a second small cylinder 42, and a second screw 43. The third columnar body 50 includes a third middle cylinder 51, a third small cylinder 52, and a third screw 53. The fourth columnar body 60 includes a fourth middle cylinder 61, a fourth small cylinder 62, and a fourth screw 63. The first middle cylinder 31 has an upper end portion 312 and a lower end portion 314, and the first small cylinder 32 has an upper end portion 322 and a lower end portion 324. The second middle cylinder 41 has an upper end portion 412 and a lower end portion 414, and the second small cylinder 42 has an upper end portion 422 and a lower end portion 424. The third middle cylinder 51 has an upper end portion 512 and a lower end portion 514, and the third small cylinder 52 has an upper end portion 522 and a lower end portion. The fourth middle cylinder 61 has an upper end 612 and a lower end 614, and the fourth small cylinder 62 has an upper end 622 and a lower end.

  Four large cylinders are respectively fixed to the four corners of the inner wall surface 106 of the square tube 10 with an adhesive or a double-sided adhesive tape. That is, the large cylinder 22 is inside the first corner 112 of the square tube 10, the large cylinder 24 is inside the second corner 114, the large cylinder 26 is inside the third corner 116, and the fourth A large cylinder 28 is fixed to the inside of the corner 118. Furthermore, each columnar body is inserted in each large cylinder. That is, the first columnar body 30 is inserted into the large cylinder 22, the second columnar body 40 is inserted into the large cylinder 24, the third columnar body is inserted into the large cylinder 26, and the fourth columnar body 60 is inserted into and removed from the large cylinder 28. It is inserted freely. In the first columnar body 30, the first small cylinder 32 is removably inserted into the first middle cylinder 31, and a lower end portion of the first middle cylinder 31 and an upper end portion of the first small cylinder 32 are arranged. The first intermediate cylinder 31 and the first small cylinder 32 are connected to each other by adjusting the length between them to a predetermined length. The movement of the first middle cylinder 31 and the first small cylinder 32 is locked by pressing the first screw 33 screwed into the side surface of the first middle cylinder 32 against the side surface of the first small cylinder 32 or This is done by screwing into the side. Similarly, the second columnar body 40, the third columnar body 50, and the fourth columnar body 60 have a structure in which the length between the upper end portion and the lower end portion of each columnar body can be adjusted and fixed. In addition, in the perspective view of the overturn prevention tool 1 in FIG. 4, the square tube 10 seems to be floating in the air. This is because the outer diameter is substantially equal to the inner diameter of each large cylinder and is in a substantially fitted state, so that the square tube 10 stops near the center of each middle cylinder. When the outer diameter of each middle cylinder is smaller than the inner diameter of each large cylinder, the square tube 10 is positioned near the lower end of each middle cylinder.

  As shown in FIG. 1, the fixture 8 is placed on the floor surface 90 of the room 9, and the back surface 88 is placed in contact with the wall surface 94. On the upper surface 82 of the fixture 8, the square tube 10, the first large cylinder 22, the second large cylinder 24, the third large cylinder 26, the fourth large cylinder 28, and the first columnar body 30. And the fall prevention tool 1 which consists of the 2nd columnar body 40, the 3rd columnar body 50, and the 4th columnar body 60 is mounted, and the 1st columnar body 30 and the 2nd columnar body 40 are mounted. And the length of the 3rd columnar body 50 and the 4th columnar body 60 is match | combined with the distance between the upper surface 82 of the fixture 8, and the ceiling 92, The fall prevention tool mounted in the upper surface 82 of the fixture 8 1 can be configured to contact the ceiling 82.

  When strong shaking such as an earthquake occurs in the above-described state, the fixture 8 moves in a direction in which the back surface 88 is separated from the wall surface 94 with the point P at the end of the lower surface 84 in contact with the floor surface 90 as the center point as shown in FIG. Receive power. However, the upper end 322 of the fourth small cylinder 62 of the fourth columnar body 60 of the fall prevention tool 1 and the upper end 522 of the third small cylinder of the third columnar body are caught by the ceiling 92, and the back surface of the fixture 8. 88 does not leave the wall 94. Therefore, the fixture 8 can be prevented from falling by the tipping prevention tool 1. In this case, even if the length of each columnar body is slightly shorter than the distance between the upper surface 82 of the fixture 8 and the ceiling 92, the effect of preventing the fall does not change.

  FIGS. 6A and 6B are views showing the columnar body of the overturn prevention tool of the first embodiment of the present invention, FIG. 6A is a side view of the columnar body, and FIG. 6B is a side view of the screw. The first columnar body 30 includes a first middle cylinder 31, a first small cylinder 32, and a first screw 33. The first screw 33 includes a screw head 332 and a screw tip portion 334. In the first columnar body 30, the first small cylinder 32 is removably inserted into the first middle cylinder 31, and a lower end portion of the first middle cylinder 31 and an upper end portion of the first small cylinder 32 are arranged. The first intermediate cylinder 31 and the first small cylinder 32 are connected to each other by adjusting the length between them to a predetermined length. The movement of the first middle cylinder 31 and the first small cylinder 32 is locked by further screwing the first screw 33 screwed into the side surface of the first middle cylinder 32 into the side surface. In this case, the screw tip 334 of the first screw 33 is sharp, and the screw tip 334 can be screwed into the small cylinder 32. Further, the first screw 33 may be a wood screw having a simple screw head 332 structure. The same applies to the columnar body 40, the columnar body 50, and the columnar body 60.

(First modification of the first embodiment)
FIG. 7 is a view showing a first modification of the columnar body of the overturning prevention tool of the first embodiment of the present invention, FIG. 7 (a) is a side view of the columnar body, and FIG. It is a side view. The first columnar body 30 includes a first middle cylinder 31, a first small cylinder 32, and a first screw 33. The screw 33 includes a screw head 332 and a screw tip portion 334. In the first columnar body 30, the first small cylinder 32 is removably inserted into the first middle cylinder 31, and a lower end portion of the first middle cylinder 31 and an upper end portion of the first small cylinder 32 are arranged. The first intermediate cylinder 31 and the first small cylinder 32 are connected to each other by adjusting the length between them to a predetermined length. The movement of the first middle cylinder 31 and the first small cylinder 32 is locked by pressing the first screw 33 screwed into the side surface of the first middle cylinder 32 against the side surface of the first small cylinder 32. Made. In this modification, the screw tip 334 is flat, and the screw tip 334 is pressed against the small cylinder 32. The same applies to the columnar body 40, the columnar body 50, and the columnar body 60.

(Second modification of the first embodiment)
FIG. 8 is a partial cross-sectional view showing a second modification of the columnar body of the tipping prevention tool of the first embodiment of the present invention. The first columnar body 30 includes a first middle cylinder 31, a first small cylinder 32, and a first screw 33. A male screw 38 is cut on the outer wall surface near the end of the first small cylinder 32, and a female screw 39 is cut on a part of the inner wall surface of the first middle cylinder 31. Since the male screw 38 of the first small cylinder 32 and the female screw 39 of the first middle cylinder 31 are screwed together, the first small cylinder 32 is inserted into the first middle cylinder 31 and rotated. The distance between the lower end 314 of the first middle cylinder 31 and the upper end 322 of the first small cylinder 32 can be adjusted. Further, the movement of the first middle cylinder 31 and the first small cylinder 32 can be locked and fixed by the first screw 33. In this case, since the male screw 38 of the first small cylinder 32 and the female screw 39 of the first middle cylinder 31 use screwing, the lower end 314 of the first middle cylinder 31 and the first thread The distance from the upper end 322 of the small cylinder 32 can be accurately adjusted to a predetermined length. In the present modification, the movements of the first middle cylinder 31 and the first small cylinder 32 are locked to some extent by the threaded engagement of the male screw 38 and the female screw 39, so that the first screw 33 is not necessary. good. Further, the male screw 38 attached to the outer wall surface of the first small cylinder 32 is not limited to the vicinity of the end portion, and may be in a portion such as the vicinity of the center portion of the first small cylinder 32. The same applies to the columnar body 40, the columnar body 50, and the columnar body 60.

  In this modification, the case where the male screw 38 of the first small cylinder 32 and the female screw 39 of the first middle cylinder 31 are screwed together has been described, but the male screw 38 of the first small cylinder 32, or The case where any one of the female threads 39 of the first middle cylinder 31 is provided is also included. That is, a male screw 38 is formed on a part of the outer wall portion of the first small cylinder 32, and the first small cylinder 32 is inserted into the first middle cylinder 31 and rotated to thereby rotate the first middle cylinder 31. A female screw 39 corresponding to the male screw 38 of the small cylinder 32 is formed on the inner wall surface. Thereby, the male screw 38 of the first small cylinder 32 and the female screw of the first middle cylinder 31 can be screwed together. Similarly, the thread of the female screw 39 of the first middle cylinder 31 is formed so as to protrude from the inner wall surface of the first middle cylinder 31, and the first small cylinder 32 is inserted into the first middle cylinder 31. By rotating, a male screw 38 corresponding to the female screw 39 of the middle cylinder 31 is formed on the outer wall surface of the first small cylinder 32. Thereby, the male screw of the first small cylinder 32 and the female screw 39 of the first middle cylinder 31 can be screwed together. Since this method uses screwing of the male screw 38 of the first small cylinder 32 and the female screw 39 of the first middle cylinder 31, the lower end portion 314 of the first middle cylinder 31; The distance from the upper end 322 of the first small cylinder 32 can be accurately adjusted to a predetermined length. This method is more effective when the first small cylinder 32 and the first middle cylinder 31 are made of a material that is easily deformed and is easily formed with screws, such as cardboard.

  Further, in this modification, an elongated belt-like object is wound around the inner wall surface of the first middle cylinder 31 to form a spiral convex portion or recess, and an elongated belt-like object is wound around the outer wall surface of the first small cylinder 32 to form a spiral. A concave portion or a convex portion is formed, and the convex portion on the inner wall surface of the first middle cylinder 31 and the concave portion on the outer wall surface of the first small cylinder 32 are screwed together to rotate, or the first middle cylinder 31 is rotated. The case where the concave portion on the inner wall surface of the cylinder 31 and the convex portion on the outer wall surface of the first small cylinder 32 are screwed together and rotated is also included. In this modification, a convex portion or a concave portion is formed on the inner wall surface of the first middle cylinder 31, and a concave portion or a convex portion is formed on the outer wall surface of the first small cylinder 32. Is inserted into the concave portion of the outer wall surface of the first small cylinder 32, and the concave portion of the first middle cylinder 31 is inserted into the convex portion of the outer wall surface of the first small cylinder 32.

(Third modification of the first embodiment)
FIG. 9 is a partial cross-sectional view showing a third modification of the columnar body of the tipping prevention tool of the first embodiment of the present invention. The first columnar body 30 includes a column 34, an upper pedestal 35, and a lower pedestal 36. The column 34 is formed with an upper male screw 342 near one end and a “reverse male screw” opposite to the winding direction of the upper male screw 342 near the other end as a lower male screw 344. The upper pedestal 35 is formed with an upper female screw 352 that is screwed into the upper male screw 342, and the lower pedestal 36 is formed with a lower female screw 362 that is screwed into the lower male screw 344. When the rotating pin 37 attached to the support column 34 is rotated in such a state, the upper male screw 342 and the lower male screw 344 are wound in opposite directions. 36 move away from each other. As a result, the length between the lower end portion 364 of the lower pedestal 36 and the upper end portion 354 of the upper pedestal 35 can be adjusted to be a predetermined length.

(Second embodiment)
FIG. 10 is a perspective view of the tipping prevention tool of the second embodiment of the present invention, and FIG. 11 is a side view of the tipping prevention tool. The fall prevention tool 1 includes a lower box 70, a first large cylinder 22, a second large cylinder 24, a third large cylinder 26, a fourth large cylinder 28, and a first columnar body 30. , Second columnar body 40, third columnar body 50, and fourth columnar body 60. The lower box 70 has a structure in which a bottom plate portion 720 is attached to the rectangular tube 10 shown in FIG. The first columnar body 30 includes a first middle cylinder 31, a first small cylinder 32, and a first screw 33. The second columnar body 40 includes a second middle cylinder 41, a second small cylinder 42, and a second screw 43. The third columnar body 50 includes a third middle cylinder 451, a third small cylinder 52, and a third screw 53. The fourth columnar body 60 includes a fourth middle cylinder 61, a fourth small cylinder 62, and a fourth screw 63. The first middle cylinder 31 has an upper end 312, and the first small cylinder 32 has an upper end 322 and a lower end 324. The second middle cylinder 41 has an upper end portion 412, and the second small cylinder 42 has an upper end portion 422 and a lower end portion 424. The third middle cylinder 51 has an upper end portion 512, and the third small cylinder 52 has an upper end portion 522. The fourth middle cylinder 61 has an upper end 612, and the fourth small cylinder 62 has an upper end 622. Further, the lower end portion of the first middle cylinder 31, the lower end portion of the second middle cylinder 41, the lower end portion of the third middle cylinder 51, and the lower end portion of the fourth middle cylinder 61 are the bottom plate portion 720 of the lower box 70. It is mounted on the inner surface of the.

  The lower box 70 is made of cardboard or the like for the purpose of weight reduction. Also, metals such as wood and aluminum are used to increase the strength.

  Four large cylinders are respectively fixed to the four corners of the inner wall surface 706 of the lower box 70 with an adhesive or a double-sided adhesive tape. That is, the large cylinder 22 is inside the first corner 712 of the lower box 70, the large cylinder 24 is inside the second corner 714, the large cylinder 26 is inside the third corner 716, and the fourth A large cylinder 28 is fixed inside the corner 718. A columnar body is inserted in each large cylinder. That is, the first columnar body 30 is inserted into the large cylinder 22, the second columnar body 40 is inserted into the large cylinder 24, the third columnar body is inserted into the large cylinder 26, and the fourth columnar body 60 is inserted into and removed from the large cylinder 28. It is inserted freely. In the first columnar body 30, the first small cylinder 32 is removably inserted into the first middle cylinder 31, and a lower end portion of the first middle cylinder 31 and an upper end portion of the first small cylinder 32 are arranged. The length between them is adjusted to a predetermined length, and the movement of the first middle cylinder 31 and the first small cylinder 32 is locked. The movement of the first middle cylinder 31 and the first small cylinder 32 is locked by pressing the first screw 33 screwed into the side surface of the first middle cylinder 32 against the side surface of the first small cylinder 32 or This is done by screwing into the side. Similarly, the second columnar body 40, the third columnar body 50, and the fourth columnar body 60 are similarly structured such that the length between the upper end portion and the lower end portion of each columnar body can be adjusted and fixed. ing.

  As shown in FIG. 1, the fixture 8 is placed on the floor surface 90 of the room 9, and the back surface 88 is placed in contact with the wall surface 94. On the upper surface 82 of the fixture 8, the lower box 70, the first large cylinder 22, the second large cylinder 24, the third large cylinder 26, the fourth large cylinder 28, and the first columnar body 30. And the fall prevention tool 1 which consists of the 2nd columnar body 40, the 3rd columnar body 50, and the 4th columnar body 60 is mounted, and the 1st columnar body 30 and the 2nd columnar body 40 are mounted. And the length of the 3rd columnar body 50 and the 4th columnar body 60 is matched with the distance of the space | interval of the upper surface 82 of the fixture 8, and the ceiling 92, The fall prevention tool mounted in the upper surface 82 of the fixture 8 1 can be configured to contact the ceiling 82.

  When strong shaking such as an earthquake occurs in the above-described state, the fixture 8 moves in a direction in which the back surface 88 is separated from the wall surface 94 with the point P at the end of the lower surface 84 in contact with the floor surface 90 as the center point as shown in FIG. Receive power. However, the upper end 322 of the fourth small cylinder 62 of the fourth columnar body 60 of the fall prevention tool 1 and the upper end 522 of the third small cylinder of the third columnar body are caught by the ceiling 92, and the back surface of the fixture 8. 88 does not leave the wall 94. Therefore, the fixture 8 can be prevented from falling by the tipping prevention tool 1. In this case, even if the length of each columnar body is slightly shorter than the distance between the upper surface 82 of the fixture 8 and the ceiling 92, the effect of preventing the fall does not change as described with reference to FIG.

  Articles can be stored inside the lower box 70. Further, the stored article does not jump out to the outside even when strong shaking such as an earthquake occurs, and the article can be stored at all times.

(Third embodiment)
FIG. 12 is a perspective view of the tipping prevention tool of the third embodiment of the present invention. The overturn prevention tool 1 includes a lower box 70, four large cylinders, four columnar bodies, and an upper box 74. Since the configuration of the lower box 70, the four large cylinders, and the four columnar bodies is the same as that in FIG. 10, detailed description thereof is omitted. The upper box 74 is placed on the lower box 70 and prevents the article stored in the lower box from being covered with dust and dirt. Further, by attaching a decorative plate to the upper surface portion 742, the side surface portion 744 of the upper box 74, and the side surface portion 708 of the lower box 70, the fall prevention tool 1 placed on the upper surface 82 of the fixture 8 in the room 9 is provided. You can also enhance your aesthetics.

  The upper box 74 is made of cardboard or the like for the purpose of weight reduction. Also, metals such as wood and aluminum are used to increase the strength.

(Modification of the third embodiment)
FIG. 13 is a perspective view showing a modification of the tipping prevention tool of the third embodiment of the present invention. As shown in FIG. 12, the present modification includes an upper slip-preventing portion 76 on the tipping prevention tool 1 including a lower box 70, four large cylinders, four columnar bodies, and an upper box 74. The lower slip prevention portion 77 is provided. The upper non-slip portion 76 includes a flat plate 762 and an upper mesh plate 764, and the lower anti-slip portion 77 includes a lower mesh plate 772. The upper mesh plate 764 of the upper slip stopper 76 is fixed to the flat plate 762. Further, the lower mesh plate 772 of the lower slip prevention portion 77 is fixed to the outer surface of the bottom plate portion 720 of the lower box 70. In such a state, first, the fall prevention composed of the lower box 70 in which the lower net plate 772 is attached to the outer surface of the bottom plate portion 720, the four large cylinders, the four columnar bodies, and the upper box 74 is provided. The tool 1 is placed on the upper surface 82 of the fixture 8. Next, the upper slip prevention part 76 is inserted between the upper surface part 742 of the upper box 74 and the ceiling 92 so that the flat plate 762 contacts the ceiling 92. As a result, the overturn prevention tool 1 prevents overturn even if strong shaking such as an earthquake occurs due to the anti-slip effect of the upper net plate 764 of the upper anti-slip portion 76 and the stock net plate 772 of the lower anti-slip portion 77. The tool 1 does not jump out.

  Upper mesh plate 764 and lower mesh plate 772 are made of a plastic material such as vinyl chloride. The flat plate 762 is made of cardboard or the like for the purpose of weight reduction. Also, metals such as wood and aluminum are used to increase the strength.

  FIG. 14 is an explanatory view for explaining the height adjusting method of the tipping prevention tool of the third embodiment of the present invention. FIG. 14A is a side view of a columnar body whose length is matched to the distance between the upper surface of the fixture and the ceiling, and FIG. 14B is the thickness of the fall prevention tool from the distance between the upper surface of the fixture and the ceiling. It is a side view of the columnar body of the length which deducted the part. The tipping prevention tool 1 includes a lower box 70, four large cylinders, four columnar bodies, an upper box 74, an upper slip prevention part 76, and a lower slip prevention part 77. As shown in FIG. 14A, first, the length of the first columnar body is adjusted in advance to the distance between the upper surface 82 of the fixture 8 and the ceiling 92, and the first middle cylinder 31 and the first small cylinder 32 are connected. Stop. The length of the 1st columnar body at this time is set to H1. Here, the mark tape 78 is wound around the first small cylinder 32 with reference to the boundary surface between the first middle cylinder 31 and the first cylinder 32. The length of the mark tape 78 in the longitudinal direction is determined by the thickness of the bottom plate portion 720 of the lower box 70, the thickness of the lid portion of the upper box 74, the thickness of the upper anti-slip portion 76, and the thickness of the lower anti-slip portion 77. It is equal to the sum. Next, the first small cylinder 32 is pushed into the first middle cylinder 31 until the mark tape 78 is not visible. The length of the first columnar body 30 at this time is H2. Therefore, the relationship between the lengths of H1, H2, and the mark tape 78 is the length of the mark tape 78 = H1-H2. The above marker tape is also provided in the same procedure for the second columnar body, the third columnar body, and the fourth columnar body. By the above procedure, the overturn prevention tool 1 including the lower box 70, the four large cylinders, the four columnar bodies, the upper box 74, the upper slip stopper 76, and the lower slip stopper 77. Is placed between the upper surface 82 of the fixture 8 and the ceiling 92 with almost no gap, and does not jump out even when subjected to strong shaking such as an earthquake, and can sufficiently prevent the fixture from falling down. In the case of only the lower box 70, the four large cylinders, and the four columnar bodies, the upper box 74 is added to the upper box 74, and the upper slip prevention part 76 is further added. If the length of the mark tape 78 in the longitudinal direction is matched to each case, the height of the overturning prevention tool 1 can be adjusted by the same method.

  It goes without saying that the present invention is not limited to the procedure of the embodiment described above, and various modifications are possible without departing from the spirit of the present invention.

  For example, although the present embodiment has been described with respect to a rectangular tube having a substantially rectangular cross section, it is needless to say that a substantially elliptical tube having a substantially elliptical cross section is also included.

  In this embodiment, the case where the large cylinder, the middle cylinder, and the small cylinder have a circular cross section has been described, but it is needless to say that the cross section includes a substantially elliptical shape and a substantially rectangular shape.

  In the present embodiment, the case of four each of the large cylinder, the middle cylinder, and the small cylinder has been described, but it goes without saying that the case of two or more is also included.

It is a front view of the fixture which attached the fall prevention tool of the 1st example. It is a side view of the fixture which attached the fall prevention tool of the 1st example. It is explanatory drawing which shows preventing the fall of a fixture with the fall prevention tool of a 1st Example. It is a perspective view of the fall prevention tool of the 1st example. It is a side view of the fall prevention tool of the 1st example. It is a figure which shows the columnar body of the fall prevention tool of a 1st Example. It is a side view which shows the 1st modification of the columnar body of the fall prevention tool of a 1st Example. It is a fragmentary sectional view which shows the 2nd modification of the columnar body of the fall prevention tool of a 1st Example. It is a fragmentary sectional view which shows the 3rd modification of the columnar body of the fall prevention tool of a 1st Example. It is a perspective view of the fall prevention tool of the 2nd example. It is a side view of the overturn prevention tool of the 2nd example. It is a perspective view of the fall prevention tool of the 3rd example. It is a perspective view which shows the modification of the fall prevention tool of a 3rd Example. It is explanatory drawing explaining the height adjustment method of the fall prevention tool which is a 3rd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fall prevention tool 10 Square tube 102 Upper end part 104 Lower end part 106 Inner wall surface 108 Outer wall surface 112 First corner 114 Second corner 116 Third corner 118 Fourth corner 20 Large cylinder 22 First large cylinder 24 First 2 large cylinders 26 third large cylinder 28 fourth large cylinder 30 first columnar body 31 first medium cylinder 312 upper end 314 lower end 32 first small cylinder 322 upper end 324 lower end 33 first Screw 332 Screw head 334 Screw tip 34 Post 342 Upper male screw 344 Lower male screw 35 Upper base 352 Upper female screw 354 Upper end 36 Lower base 362 Lower female screw 364 Lower end 37 Rotating pin 38 Male screw 39 Female screw 40 Second screw Columnar body 41 Second middle cylinder 412 Upper end 414 Lower end 42 Second small cylinder 422 Upper end 424 Lower end 43 Second screw 50 Third 51 Third middle cylinder 512 Upper end portion 514 Lower end portion 52 Third small cylinder 522 Upper end portion 524 Lower end portion 53 Third screw 60 Fourth columnar body 61 Fourth middle cylinder 612 Upper end portion 614 Lower end portion 62 4th small cylinder 622 upper end 624 lower end 63 fourth screw 70 lower box 702 upper end 704 lower end 706 inner wall 708 outer wall 712 first corner 714 second corner 716 third corner 718 fourth 720 Bottom plate portion 74 Upper box 742 Upper surface portion 744 Side surface portion 76 Upper slip prevention portion 762 Flat plate 764 Upper mesh plate 77 Lower slip prevention portion 772 Lower mesh plate 78 Marking tape 8 Fixture 80 Front face 82 Upper face 84 Lower face 86 Side face A
87 Side B
88 Back 9 Indoor 90 Floor 92 Ceiling 94 Wall

Claims (20)

A fall prevention tool for preventing the fall of the fixture by being placed on the upper surface of the fixture,
A length adjusting means for adjusting the length in the axial direction, and a plurality of columnar bodies standing on the fixture;
An outer cover body that assists the standing of the columnar body by providing an inner wall with an insertion portion into which each of the columnar bodies is inserted,
Equipped with,
The columnar body includes a cylindrical body that is removably inserted into the insertion portion, and a columnar body that is removably inserted into the cylindrical body,
The length adjusting means inserts the column body into the cylindrical body, adjusts the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body to a predetermined length, A fall prevention tool, wherein the column body is secured to the tubular body by a securing means. A fall prevention tool for preventing the fall of the fixture by being placed on the upper surface of the fixture,
A length adjusting means for adjusting the length in the axial direction, and a plurality of columnar bodies standing on the fixture;
An outer cover body that assists the standing of the columnar body by providing an inner wall with an insertion portion into which each of the columnar bodies is inserted,
Comprising
The columnar body is provided with a female screw on the inner wall surface, a cylindrical body that is removably inserted into the insertion portion, and a male screw on the outer wall surface that is detachably screwed into the cylindrical body. Composed of body and
The length adjusting means inserts the column body into the cylindrical body, and adjusts the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body to a predetermined length. A fall prevention tool, wherein the male screw is screwed onto the female screw, and the column body is secured to the cylindrical body by a securing means. A fall prevention tool for preventing the fall of the fixture by being placed on the upper surface of the fixture,
A length adjusting means for adjusting the length in the axial direction, and a plurality of columnar bodies standing on the fixture;
An outer cover body that assists the standing of the columnar body by providing an inner wall with an insertion portion into which each of the columnar bodies is inserted,
Comprising
The columnar body is provided with a female screw on the inner wall surface, a cylindrical body that is removably inserted into the insertion portion, and a male screw on the outer wall surface that is detachably screwed into the cylindrical body. Composed of body and
The length adjusting means inserts the column body into the cylindrical body, and adjusts the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body to a predetermined length. A fall prevention tool, wherein the male screw is screwed into the female screw. The locking means is a screw, the screw is screwed in from the side surface of the cylindrical body, and the tip of the screw is pressed against the side surface of the column body to lock the column body to the cylindrical body. The fall prevention tool according to claim 1 . Said locking means is a screw, wherein, characterized by locking the screw from the side of the tubular body screwed, the cylindrical body to the tubular body by screwing the screw on the side face of the columnar body Item 2. The fall prevention tool according to Item 1 . The fall prevention tool according to any one of claims 1 to 5, wherein a bottom plate portion is provided on the outer cover. The fall prevention tool according to claim 6 , wherein a lower slip prevention portion is provided on the bottom plate portion. The fall prevention tool according to claim 7 , wherein the lower slip prevention part is made of a lower mesh plate, and the lower mesh plate is attached to an outer surface of the bottom plate portion. The overturn prevention tool according to any one of claims 1 to 8, further comprising a lid that covers the outer cover. The fall prevention tool according to claim 9 , wherein an upper slip prevention part is provided on the lid part. The anti-tip tool according to claim 10 , wherein the upper anti-slip portion fixes the flat plate and the upper mesh plate and is placed on the lid portion. The fall prevention according to claim 11 , wherein a mark corresponding to a total thickness of each of the bottom plate portion, the lower slip prevention portion, the lid portion, and the upper slip prevention portion is provided on the column body. Tools.   The columnar body includes a male screw on one outer wall surface at one end, a reverse male screw on the outer wall surface on the other end, a cylindrical body that is removably inserted into the insertion portion, and a female screw on the inner wall surface. An upper pedestal that is detachably screwed to the outer wall surface of one end of the cylindrical body, and a reverse female screw that is detachably screwed to the outer wall surface of the other end of the cylindrical body. The fall prevention tool according to claim 1, comprising a lower pedestal. The length adjusting means is configured such that the upper pedestal is screwed into one end of the cylindrical body, the lower pedestal is screwed into the other end of the cylindrical body, and the cylindrical body is rotated. The fall prevention according to claim 13 , wherein the sum of the axial length of the upper pedestal, the axial length of the lower pedestal, and the axial length of the exposed portion of the cylindrical body is adjusted to a predetermined length. Tools. The fall prevention tool according to any one of claims 1 to 14 , wherein an outer wall surface of the fall prevention tool is covered with a decorative board. A fall prevention method using a fall prevention tool that prevents the fall of the fixture by being placed on the upper surface of the fixture,
A plurality of columnar bodies that are erected on the fixture and are configured by a cylindrical body and a columnar body that is removably inserted into the cylindrical body, and an insertion portion into which each of the columnar bodies is inserted is an inner wall surface. An outer covering body that assists the standing of the columnar body by being provided with, and a fall-preventing tool comprising the upper surface of the fixture,
The column body is inserted into the cylindrical body, the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length, and the column body is adjusted to the cylindrical body. A fall-preventing method using a fall-preventing tool, wherein the fall-down of the fixture is prevented by locking with a locking means. A fall prevention method using a fall prevention tool that prevents the fall of the fixture by being placed on the upper surface of the fixture,
A plurality of columnar bodies that are erected on the fixture, and are composed of a cylindrical body having a female screw on an inner wall surface and a column body that has a male screw on an outer wall surface and is detachably screwed to the cylindrical body; A fall prevention tool composed of an outer cover body that assists standing of the columnar body by providing an insertion portion into which each of the columnar bodies is inserted on an inner wall surface, is placed on the upper surface of the fixture,
The column body is inserted into the cylindrical body, and the male screw is inserted into the female thread so that the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length. A fall prevention method using a fall prevention tool, wherein the column body is screwed to the cylindrical body and the fixture is locked by a locking means to prevent the fixture from falling down. A fall prevention method using a fall prevention tool that prevents the fall of the fixture by being placed on the upper surface of the fixture,
A plurality of columnar bodies that are erected on the fixture, and are composed of a cylindrical body having a female screw on an inner wall surface and a column body that has a male screw on an outer wall surface and is detachably screwed to the cylindrical body; A fall prevention tool composed of an outer cover body that assists standing of the columnar body by providing an insertion portion into which each of the columnar bodies is inserted on an inner wall surface, is placed on the upper surface of the fixture,
The column body is inserted into the cylindrical body, and the male screw is inserted into the female thread so that the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column body is adjusted to a predetermined length. A fall-preventing method using a fall-preventing tool, wherein the fall-preventing tool is prevented from being fallen by being screwed onto the fixture. The fall prevention tool is provided with a bottom plate portion and a lower anti-slip portion on the outer cover, and is provided with a cover portion that covers the outer cover and an upper anti-slip portion placed on the cover portion,
After adjusting the sum of the axial length of the cylindrical body and the axial length of the exposed portion of the column to a predetermined length, the bottom plate portion, the lid portion, the upper anti-slip portion, and the lower anti-slip portion A mark corresponding to the sum of the thicknesses of the respective parts is attached to a boundary surface where the column body is inserted into the cylindrical body, and the column body is inserted into the cylindrical body again so that the mark is hidden. A fall prevention method using the fall prevention tool according to any one of claims 16 to 18 . A fall prevention method using a fall prevention tool that prevents the fall of the fixture by being placed on the upper surface of the fixture,
A cylindrical body which is erected on the fixture and has a male screw on one end outer wall surface and a reverse male screw on the other outer wall surface, and an outer peripheral surface on one end portion of the cylindrical body which has a female screw on an inner wall surface. A plurality of columnar bodies comprising: an upper pedestal that is detachably screwed to the upper pedestal; and a lower pedestal that has a reverse female screw on the inner wall surface and is detachably screwed to the outer peripheral surface of the other end of the cylindrical body; A fall prevention tool comprising an outer cover that assists the standing of the columnar body by providing an insertion portion into which each of the columnar bodies is inserted on an inner wall surface; and
The upper pedestal is screwed into one end of the cylindrical body, the lower pedestal is screwed into the other end of the cylindrical body, and the cylindrical body is rotated to rotate the axial length of the upper pedestal. The fall prevention device using the fall prevention tool is characterized in that the fall of the fixture is prevented by adjusting the sum of the axial length of the lower pedestal and the axial length of the exposed portion of the cylindrical body to a predetermined length. Method.

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