JP4262617B2 - Prop - Google Patents

Description

    The present invention relates to a column used for a vehicle stop or the like.

  2. Description of the Related Art Conventionally, as a column used for a car stop installed at an entrance of a park or the like, there is a column that is lifted and lowered so that a column main body can appear and disappear with respect to the ground surface. In order to cope with barrier-free etc. in recent years, such a column is required to prevent the column body from protruding from the ground surface so that when the column body is buried, the passage on the column can be performed more smoothly. ing. In order to meet such demands, those having the structures shown in FIGS. 8 and 9 are known. FIG. 8 shows a state in which the column main body protrudes from the ground, and FIG. 9 shows a state in which the column main body is buried in the ground.

  The column 1 includes a column main body 110 formed in a columnar shape, an embedded cylinder 120, a guide cylinder 130, and a support member 140.

  The column main body 110 is configured to be movable up and down so as to be able to appear and disappear with respect to the ground J, and is formed in a cylindrical shape having substantially the same cross-sectional shape from the column head 111 to the lower end 112. A protrusion 113 protruding in a direction perpendicular to the axial direction is formed at the lower portion of the column main body 110.

  The embedded cylinder 120 is formed in a cylindrical shape having substantially the same cross-sectional shape, and a guide cylinder holding portion 125 protruding toward the inner peripheral side to hold the guide cylinder 130 is formed at the upper end thereof, and is formed in the lower part. A screw hole 126 for inserting a screw 153 is formed. And all the parts of the buried cylinder 120 are buried in the ground J in a state of being buried in the ground J.

  The guide cylinder 130 is inserted into the embedded cylinder 120 and is externally fitted to the column main body 110, and the upper end of the main body 131 is formed and fixed on the guide cylinder holding part 125 of the embedded cylinder 120 by a bolt 151. And the upper surface of the flange 133 is embedded in the ground J in a state where the upper surface is substantially the same as the ground J.

  A guide groove 135 into which the projection 113 enters is formed at the lower end of the main body 131. The guide groove 135 includes a vertical groove 135a extending in the axial direction from the lower end of the main body 131, and a vertical groove 135a. And a terminal groove 135c extending in the axial direction from a substantially tip portion of the lateral groove portion 135b.

  The support member 140 prevents the support column main body 110 from descending endlessly when the lower end 112 of the support column main body 110 abuts on the upper end of the support member 140, and is formed in a cylindrical shape whose upper end is closed. In addition, a screw hole 141 for inserting the screw 153 is formed in the upper part of the side surface, and is inserted into the lower part of the buried cylinder 120. The support member 140 is fixed to the buried cylinder 120 by inserting the screws 153 into the screw holes 126 and 141.

  As a material constituting the column 1, metal is used for the column main body 110, the support member 140, the bolt 151, and the screw 153 in order to reduce the overall weight while maintaining a certain strength. Is made of synthetic resin.

  Further, when the column main body 110 is fixed in a state of protruding from the surface of the ground J, the protrusion 113 provided on the column main body 110 is engaged with the terminal groove 135c of the guide groove 135 as shown in FIG. Do.

  When the column main body 110 is buried in the ground J from the state in which the column main body 110 is fixed in a state of protruding from the surface of the ground J, the following procedure is performed. First, the column main body 110 is slightly raised to slide the protrusion 113 upward in the terminal groove 135c. Next, by rotating the column main body 110, the protrusion 113 is slid in the horizontal groove portion 135b in the direction in which the vertical groove portion 135a is disposed. Finally, the column main body 110 is lowered, the protrusion 113 is slid in the vertical groove 135a, the protrusion 113 is extracted from the guide groove 135, and the lower end 112 of the column main body 110 is brought into contact with the upper end of the support member 140. The column main body 110 is buried in the ground J in a state where the upper end of the column head 111 of the column main body 110 is substantially the same height as the surface of the ground J (see FIG. 9).

  Further, when the column main body 110 is fixed in a state where the column main body 110 protrudes from the surface of the ground J from a state where the column main body 110 is buried in the ground J, the following procedure is performed. First, the column main body 110 is raised, and the protrusion 113 of the column main body 110 is slid upward in the vertical groove portion 135a. Next, the column main body 110 is rotated in the circumferential direction, and the protrusion 113 is slid in the lateral groove portion 135b in the direction in which the terminal groove 135c is disposed. Finally, the column main body 110 is slightly lowered to allow the protrusion 113 to enter the terminal groove 135c, thereby fixing the column main body 110 in a state of protruding from the surface of the ground J.

  If such a configuration is adopted, the column main body 110 can be completely buried in the ground J, and therefore there is no portion protruding from the ground J when the column main body 110 is buried, such as an automobile or a person. It is possible to make the traffic smoothly.

  However, when the column main body 110 is buried in the ground J and the lower end portion 112 of the column main body 110 is brought into contact with the upper end of 140, the column main body 110 is passed when an automobile, a person, or the like passes over the column 1. A load from above is added to the, and a load from above is also applied to the support member 140 accordingly. In such a case, since the support member 140 is fixed to the embedded cylinder 120 with the screw 153, the load applied to the column main body 110 is transmitted to the screw 153 via the support member 140, and eventually. Stress concentration is caused in the screw holes 126 and 141. Furthermore, since the support member 140 and the screw 153 are formed of metal as described above, the embedded tube 120 is formed of synthetic resin as described above, and therefore, the embedded tube 120 includes the support member 140 and the screw 153. Compared with low strength. Therefore, the screw hole 126 of the embedded cylinder 120 is expanded downward by repeatedly applying the load as described above, and accordingly, the support member 140 may gradually sink and the column main body 110 may also gradually sink. Is assumed.

  Therefore, in order to prevent such sinking, the structures shown in FIGS. 10 and 11 can be considered (for example, Patent Document 1). FIG. 10 shows a state in which the column main body protrudes from the ground, and FIG. 11 shows a state in which the column main body is buried in the ground.

  In addition, in the following description, about the part which has the same structure as the above-mentioned support | pillar 1, only the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  The support column 1 includes a support column body 110 formed in a column shape, an embedded tube 120, and a guide tube 130, and does not include the support member 140.

  The column head 111 provided to the head of the column main body 110 is formed in a shape protruding in a direction perpendicular to the axial direction.

  At the upper end of the buried cylinder 120, a head storage portion 123 that is larger than the inner diameter of the main body 121 of the embedded cylinder 120 and is a space for storing the column head 111 is formed. 125 is not formed.

  As described above, the guide tube 130 includes the main body portion 131 having the guide groove 135 and the flange portion 133, and the flange portion 133 is fixed on the bottom surface 123 a of the head storage portion 123 by the bolt 151.

  When the column main body 110 is buried in the ground J from a state in which the column main body 110 is fixed in a state of protruding from the surface of the ground J, the following procedure is performed. First, the column main body 110 is slightly raised to slide the protrusion 113 upward in the terminal groove 135c. Next, by rotating the column main body 110, the protrusion 113 is slid in the horizontal groove portion 135b in the direction in which the vertical groove portion 135a is disposed. Finally, the column main body 110 is lowered, the protrusion 113 is slid in the vertical groove portion 135 a, the protrusion 113 is extracted from the guide groove 135, and the lower surface of the column head 111 of the column main body 110 is placed on the head storage portion 123 of the embedded cylinder 120. The entire column main body 110 is buried in the ground J by bringing it into contact with the bottom surface 123a and storing the column head 111 in the head storage portion 123 (see FIG. 11).

  In addition, since the procedure in which the column main body 110 is fixed in a state where the column main body 110 protrudes from the surface of the ground J from the state in which the column main body 110 is buried in the ground J is the same as the case of the above-described column 1, The description is omitted.

When such a configuration is adopted, the lowering of the column main body 110 is prevented by the lower surface of the column head 111 being brought into contact with the bottom surface 123a of the head storage portion 123, that is, surface contact. Thus, stress concentration is not caused by the load from above. Therefore, it is possible to avoid a situation in which the column main body 110 gradually sinks by repeatedly applying the load from above, and the above-described problems can be solved. In addition, since the column main body 110 can be completely buried in the ground J, there is no portion that protrudes from the ground J when the column main body 110 is buried, as in the prior art described above. It is possible to make people pass smoothly.
Utility model publication 61-33053

  However, if the above structure is adopted, as shown in FIG. 10, when the column main body 110 protrudes from the surface of the ground J, the head storage portion 123 is recessed with respect to the surface of the ground J with respect to the external space. Since it will be exposed, sand, dust, etc. are likely to enter the head storage portion 123. Further, when sand, dust or the like enters the head storage portion 123, it is difficult to smoothly store the column head 111 in the 123 unless they are removed. Since it is recessed with respect to the surface, it takes time to remove sand, dust and the like.

  Therefore, the present invention prevents the sand main body 110 from entering the ground J by preventing sand, dust, etc. from entering the recessed portion of the ground J when the pillar main body 110 is exposed from the surface of the ground J. It aims at providing the support | pillar which can be buried smoothly.

The invention according to claim 1 has a columnar shape configured to be movable up and down so as to be able to appear and disappear with respect to the ground, and has a column head protruding in a direction perpendicular to the axial direction at the head, and an outer side at the lower part. a post body with the protrusion protruding been made to accommodate the strut body, and buried tube comprising a head housing portion all parts are housed Rutotomoni being embedded in the ground, the head at the upper end, A concealing member for concealing the head storage part by disposing at least a portion at the same height as or higher than the ground when the prop body protrudes from the ground, and a guide groove into which the protrusion enters. And a guide tube that prevents the column main body from moving downward when the projection is locked to the lower end of the end groove of the guide groove. In the predetermined ascending position before the column body reaches the rising end And the function of causing the concealing member to be raised and concealing the head storage portion by the at least part, and a state in which the column main body protrudes from the surface of the ground when it is engaged with the lower end of the terminal groove. And a function of fixing to .

According to a second aspect of the present invention, in the support column according to the first aspect, the concealing member includes a lower surface of the column head when the column head of the column main body is stored in the head storage unit. wherein in a state of being disposed between the bottom surface of the head housing part, characterized in that it is configured to Ru is accommodated in the head receiving portion.

  According to a third aspect of the present invention, in the support column according to the first or second aspect, the concealing member includes an outer fitting portion that is fitted onto the column main body, and a flange portion that is formed at an upper end of the outer fitting portion. The saddle portion is characterized in that it is formed in a shape that conceals the head storage portion when it is disposed at the same height as or higher than the ground.

According to a fourth aspect of the present invention, in the support column according to any one of the first to third aspects, the concealing member includes an auxiliary portion that extends downward from an outer peripheral portion of the collar portion, and the collar portion is more than the ground. The head storage portion is concealed by the auxiliary portion .

According to a fifth aspect of the present invention, in the support according to any one of the first to fourth aspects, a packing member formed of a material having an elastic force is provided at a peripheral portion of the head of the support main body. It is characterized by that.

  According to the first aspect of the present invention, the head storage portion that stores the head of the column main body is concealed by the concealing member when the column main body protrudes from the ground. The head storage portion is not directly exposed to the external space, and sand, dust and the like are prevented from directly entering the head storage portion.

  Further, the concealing member is a portion exposed to the external space because at least a part of the concealing member is disposed at the same height as or higher than the ground when the column main body protrudes from the ground. Therefore, unlike the structure of the prior art, sand, dust or the like does not enter the recessed portion.

  Therefore, when the column main body is buried in the ground, it is not necessary to take time and effort to remove sand, dust, etc. in the recessed portion as in the prior art, and the column main body can be buried smoothly. .

  According to invention of Claim 2, when the head of the said support | pillar main body is accommodated in the said head accommodating part, the said concealing member is the bottom face of the said head, and the bottom face of the said head accommodating part. Since it is stored in the head storage part in a state of being disposed between the heads, it does not become an obstacle when the head is stored in the head storage part. In addition, when the column main body protrudes from the ground, at least a portion is disposed at the same height as or higher than the ground, and as described above, it is recessed with respect to the ground surface. It is possible to smoothly bury the column main body without sand, dust or the like entering the portion. Therefore, it becomes possible to bury the column main body more smoothly in the ground.

  According to invention of Claim 3, the said concealment member is comprised so that it may be provided with the external fitting part externally fitted to the said support | pillar main body, and the collar part formed in the upper end of this external fitting part, The same as the said ground Since the concealment member can be configured only by forming the collar portion in a shape concealing the head storage portion when arranged at a height or higher, the concealment member The configuration can be simplified.

According to invention of Claim 5, since the packing member formed with the raw material which has an elastic force is provided in the peripheral part of the head of the said support | pillar main body, the said head is in the said head accommodating part. When the head is stored, the head storage portion can be completely sealed by the head, and sand, dust, etc. can be prevented from entering the head storage portion.

  An embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 shows a state in which the column main body protrudes from the ground in the column according to this embodiment.

  As shown in FIG. 1, the support column 1 includes a support column body 10 formed in a columnar shape, an embedded tube 20, a guide tube 30, a concealing member 40, and a side surface protection member 50.

  The column main body 10 is configured to be movable up and down so as to be able to appear and disappear with respect to the ground J, and as shown in FIGS. 1 and 3, a column head 11 formed on the head of the column main body 10 and A protrusion 13 is provided at the lower part of the support body 10 so as to protrude from the support body 10 in a direction perpendicular to the axial direction.

  The column head 11 is formed in a state of projecting in a direction perpendicular to the axial direction of the column main body 10, and a part of the upper end, a peripheral edge, and a lower end thereof have elasticity such as rubber and urethane. A packing member 11a formed of a material having the same is provided.

  The protrusions 13 are arranged at two places on the periphery of the column main body 10, and these protrusions 13 are arranged so as to face each other.

As shown in FIG. 1, the buried cylinder 20 is entirely embedded in the ground J, and includes a main body portion 21 and a cylindrical portion 23 disposed below the main body portion 21. The upper end of the body portion 21, the head accommodating portion 25 of a larger diameter than the inner diameter of the other inner diameter and the cylindrical portion 23 of the main body portion 21 is formed, in the head accommodating portion 25, strut head 11 There has been and can be accommodated. The main body portion 21 and the cylindrical portion 23 both have substantially the same inner diameter, and both members are connected together by a bolt 61.

  As shown in FIGS. 1 and 3, the guide tube 30 is inserted into the main body portion 21 of the embedded tube 20, and is formed at the upper end of the main body portion 31 and the main body portion 31 that fits outside the column main body 10. And a flange 33 provided with a bolt hole 33a for inserting the screw.

  At the lower end of the main body 31, guide grooves 35 into which the protrusions 13 enter are formed at two locations. The guide groove 35 includes a vertical groove portion 35a extending in the axial direction from the lower end portion of the main body portion 31, a horizontal groove portion 35b extending in the circumferential direction from a substantially distal end portion of the vertical groove portion 35a, and a horizontal groove. A terminal groove 35c extending in the axial direction from the substantially distal end portion of the portion 35b is provided, and the guide grooves 35 are in a positional relationship that substantially faces each other.

  As shown in FIGS. 1 and 4, the concealing member 40 includes a main body portion 41 (corresponding to an outer fitting portion) formed in a cylindrical shape, and a flange portion 43 formed at the upper end of the main body portion 41. Yes.

  The main body 41 is formed with a diameter slightly larger than the outer periphery of the column main body 10, and the outer periphery is formed with a diameter slightly smaller than the inner periphery of the main body 21 and the cylindrical part 23.

  The outer periphery of the flange 43 is formed in a shape that substantially contacts the inner periphery of a main body 51 (described later) of the side surface protection member 50.

  The side surface protection member 50 is formed in a cylindrical shape, and includes a main body portion 51 disposed on the side surface 25 b of the head storage portion 25, and a flange portion 53 formed on the upper end thereof and disposed on the upper end 21 a of the main body portion 21. I have.

  Hereinafter, with reference to FIG. 1 and FIG. 5, an arrangement state of each member in a state in which the column main body 10 protrudes from the surface of the ground J will be described.

  The column main body 10 is fixed to the guide cylinder 30 in a state in which the protrusion 13 is locked to the lower end of the terminal groove 35 c of the guide cylinder 30 and is prevented from moving downward.

  The guide tube 30 is disposed in a state in which the main body 31 is disposed on the inner periphery of the main body 21 and the cylindrical portion 23 of the embedded tube 20, and the flange 33 is in contact with the bottom surface 25 a of the head storage portion 25. ing. In addition, the flange portion 33 is fixed to the bottom surface 25a of the head storage portion 25 by a bolt 61 inserted into the bolt hole 33a.

  The concealing member 40 is embedded in the embedded cylinder 20 with the main body 41 fitted on the column main body 10, and embedded with the collar 43 disposed on the upper surface of the collar 33 of the guide cylinder 30. It is arranged in the cylinder 20.

  The main body portion 41 is a state in which the collar portion 43 is movable between a height at which the collar portion 43 is substantially in contact with the upper surface of the collar portion 33 of the guide tube 30 and a height located at substantially the same height as the surface of the ground J. It is inserted into the inner periphery of the part 21 and the cylindrical part 23.

  Further, the lower end portion of the main body portion 41 is locked to the protrusion 13 of the column main body 10, and the protrusion 13 causes the flange portion 43 of the concealing member 40 to be positioned at substantially the same height as the surface of the ground J. Is retained.

  And as above-mentioned, since the outer periphery of the collar part 43 is formed in the shape which substantially contacts the inner periphery of the main-body part 51 (after-mentioned) of the side surface protection member 50, the head accommodating part 25 is the collar part 43. Is hidden from the external space.

  Hereinafter, an operation for changing the column main body 10 from the state of protruding from the surface of the ground J to the state in which the entire column main body 10 is buried in the ground J will be described.

  First, the column main body 10 is slightly raised to slide the protrusion 13 upward in the terminal groove 35c. Along with this, the concealment member 40 slightly rises.

  Next, by rotating the column main body 10, the protrusion 13 is slid in the horizontal groove 35 b in the direction in which the vertical groove 35 a is arranged.

  Further, by lowering the column main body 10, the protrusion 13 is slid in the longitudinal groove portion 35 a, and the concealing member 40 is lowered to a position where the collar portion 43 contacts the collar portion 33 of the guide tube 30. Furthermore, by continuing the descent of the column main body 10, the protrusion 13 is extracted from the guide groove 35, and the column head 11 of the column main body 10 is stored in the head storage portion 25 of the buried cylinder 20, thereby 10 is buried in the ground J.

  In this state, as shown in FIGS. 6 and 7, the column head 11 and the concealing member 40 are such that the lower end of the packing member 11 a contacts the flange 43 of the concealing member 40 and the periphery thereof is a side surface. It arrange | positions in the state which contacts the main-body part 51 of the protection member 50. FIG. And the head storage part 25 is concealed by the support | pillar head 11 by arrange | positioning in this state. Further, the concealing member 40 is arranged in a state where the lower surface of the flange portion 43 is in contact with the upper surface of the flange portion 33 of the guide tube 30.

  Furthermore, an operation for changing the column main body 10 from the state in which the column main body 10 is buried in the ground J to the state in which the column main body 10 protrudes from the surface of the ground J will be described.

  First, the column main body 10 is raised, the protrusion 13 of the column main body 10 is fitted into the vertical groove portion 35a of the guide groove 35, the protrusion 13 is slid upward in the vertical groove portion 35a, and the protrusion 13 is formed on the main body portion 41 of the concealing member 40. Lock to the bottom. Furthermore, the concealing member 40 is raised by continuing the raising of the column main body 10 to the height at which the protrusion 13 is positioned at the height (corresponding to the rising end) where the lateral groove 35b is formed.

  Next, the column main body 10 is rotated in the circumferential direction, and the protrusion 13 is slid in the lateral groove portion 35b in the direction in which the terminal groove 35c is disposed. Finally, the column main body 10 is slightly lowered to allow the protrusion 13 to enter the terminal groove 35c, thereby fixing the column main body 10 in a state of protruding from the surface of the ground J. The hiding member 40 is slightly lowered by this operation.

  With the above configuration, in a state where the column main body 10 protrudes from the surface of the ground J, the head storage portion 25 that stores the column head 11 of the column main body 10 is concealed by the flange portion 43 of the concealing member 40. Therefore, the head storage part 25 is not directly exposed to the external space, and sand, dust and the like are prevented from entering the head storage part 25 directly. Further, since the flange portion 43 of the concealing member 40 is disposed at substantially the same height as the surface of the ground J, the portion exposed to the external space should not have a recessed portion with respect to the surface of the ground J. Therefore, unlike the configuration of the prior art, sand, dust or the like does not enter the recessed portion.

  Therefore, when the column main body 10 is buried in the ground J, it is not necessary to take time and effort to remove sand, dust, etc. in the recessed portion as in the conventional case, and the column main body 10 can be buried smoothly. Become.

  Further, the concealing member 40 is disposed between the lower surface of the column head 11 and the bottom surface of the head storage unit 25 when the column head 11 of the column main body 10 is stored in the head storage unit 25. In this state, it is stored in the head storage unit 25, so that it does not become an obstacle when the column head 11 is stored in the head storage unit 25. Therefore, the column main body 10 can be buried in the ground J more smoothly.

  Further, the concealing member 40 is configured to include a main body portion 41 that is externally fitted to the column main body 10 and a flange portion 43 that is formed at the upper end of the main body portion 41, and the outer periphery of the flange portion 43 is a side surface protection member. Since the head housing part 25 can be concealed when the collar part 43 is arranged at the same height as the ground, it is only formed in a shape that substantially contacts the inner periphery of the 50 main body parts 51. The configuration of the concealing member 40 can be simplified.

  Furthermore, since the concealing member 40 can be lifted as the column main body 10 is raised only by providing the column main body 10 with the protrusions 13, the configuration of the column 1 can be simplified.

  In addition, since the packing member 11 a made of a material having elasticity is provided at the lower end and the periphery of the column head 11 of the column body 10, the column head 11 is stored in the head storage unit 25. The head storage portion 25 can be completely sealed by the column head 11 and sand, dust and the like can be prevented from entering the head storage portion 25.

  Further, in the state where the column main body 10 protrudes from the surface of the ground J, the column head 11 is provided with the packing member 11a. Therefore, even when a person or the like accidentally contacts the column head 11, the impact is caused. Can be relieved.

  In addition, the collar part 43 of the concealment member 40 does not necessarily need to be disposed at substantially the same height as the ground J in a state where the column main body 10 protrudes from the surface of the ground J. For example, an auxiliary portion extending downward from the outer peripheral portion of the flange portion 43 is formed on the concealing member 40, the flange portion 43 is disposed slightly above the surface of the ground J, and the inner peripheral surface of the main body portion 51 of the side surface protection member 50. It is possible to configure the support column 1 so that a portion exposed to the external space does not have a recessed portion with respect to the surface of the ground J by contacting the auxiliary portion with the auxiliary portion.

  Further, the main body portion 21 and the cylindrical portion 23 do not have to be formed of separate members, and may be formed integrally from the beginning.

In the support | pillar concerning one Embodiment of this invention, it is a fragmentary sectional view which shows the state in which the support | pillar main body protruded from the ground surface. It is the partial cross section figure which showed the support | pillar main body of the support | pillar concerning one Embodiment of this invention. It is the partial cross section figure which showed the guide cylinder of the support | pillar concerning one Embodiment of this invention. It is the partial cross section figure which showed the concealment member of the support | pillar concerning one Embodiment of this invention. In the state of FIG. 1, it is the schematic which showed the arrangement | positioning condition of a support | pillar main body, a guide cylinder, and a concealment member. In the support | pillar concerning one Embodiment of this invention, it is a fragmentary sectional view which shows the state which the support | pillar main body was buried with respect to the ground surface. FIG. 7 is a schematic diagram illustrating an arrangement state of a column main body, a guide tube, and a concealing member in the state of FIG. 6. In one form of the support | pillar concerning a prior art, it is a fragmentary sectional view which shows the state in which the support | pillar main body protruded from the ground surface. In one form of the support | pillar concerning a prior art, it is sectional drawing which shows the state with which the support | pillar main body was buried with respect to the ground surface. In another form of the support | pillar concerning a prior art, it is a fragmentary sectional view which shows the state which the support | pillar main body protruded from the ground surface. In another form of the support | pillar concerning a prior art, it is sectional drawing which shows the state with which the support | pillar main body was buried with respect to the ground surface.

DESCRIPTION OF SYMBOLS 1 support | pillar 10 support | pillar main body 11a packing member 11 support | pillar head 13 protrusion 20 buried cylinder 21a upper end 21 main body part 23 cylindrical part 25 head storage part 25a bottom face 40 concealment member 41 main body part (external fitting part)
43

Claims (5)

A column main body that has a columnar shape that can be raised and lowered to be able to appear and disappear with respect to the ground , has a column head protruding in a direction perpendicular to the axial direction in the head, and a protrusion protruding outward in the lower part When,
Be those for housing the strut body, and buried tube comprising a head housing portion all parts are housed Rutotomoni being embedded in the ground, the head at the upper end,
A concealing member for concealing the head storage part by disposing at least a portion at the same height as or higher than the ground when the prop body protrudes from the ground ;
A guide tube having a guide groove into which the projection enters, and a guide cylinder that prevents the column main body from moving downward when the projection is locked to a lower end of a terminal groove of the guide groove;
When the column main body rises, the protrusion engages the concealing member at a predetermined ascending position before the column main body reaches the ascending end, and raises the concealing member so that the at least part of the head storage portion And a function of fixing the column main body in a state of protruding from the surface of the ground when locked to the lower end of the terminal groove . The strut according to claim 1,
The concealing member is disposed between the bottom surface of the column head and the bottom surface of the head storage unit when the column head of the column main body is stored in the head storage unit. , struts, characterized in that it is configured to Ru is accommodated in the head receiving portion. The strut according to claim 1 or 2,
The concealing member includes an outer fitting portion that is fitted on the column main body, and a flange portion that is formed on an upper end of the outer fitting portion,
This support | pillar was formed in the shape which conceals the said head storage part, when it arrange | positions at the height same as the said ground or the height beyond it. In the support | pillar in any one of Claims 1 thru | or 3,
The concealing member has an auxiliary portion extending downward from an outer peripheral portion of the heel portion, and the heel portion is disposed at a height higher than the ground, and the head storage portion is concealed by the auxiliary portion. The prop is characterized by becoming .   In the support | pillar in any one of Claims 1 thru | or 4,
  A support column comprising a packing member made of a material having elasticity in a peripheral portion of a support column head of the support column main body.

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