JP6187986B2 - Pressure fixing arm and anchor construction method to cope with fragile body using the same - Google Patents

Description

  The present invention, for example, has a lower strength and density than ordinary concrete and, conversely, is attached to cover and protect the surface of a fragile enclosure constructed of a gas-mixed lightweight soil (FCB) having high water permeability. The present invention relates to a pressure fixing arm capable of preventing the covering protective material and the like from being peeled off and contributing to the repair thereof, and an anchor method for dealing with a brittle casing using the same.

  In some cases, a road is paved on the top of a fragile enclosure constructed of a bubble-mixed lightweight soil (FCB) or the like. In this case, when high-concentration salt water eluted from a large amount of snow melting agent (calcium chloride, etc.) sprayed in a cold region penetrates into the housing and accumulates in a saturated state, the covering protective material is bound to the housing. The connected steel material is corroded abnormally quickly.

  Conventionally known anchoring methods include adhesive (chemical) anchoring methods and metal anchoring methods, all of which apply to the fact that the casing has high strength and density and the capillaries of the casing are not stagnant. It is known that this is an absolute condition. Therefore, there is a problem that the conventional anchor method cannot be applied to the fragile housing as described above.

Kuwahara et al., “Fundamental experiments on pulling characteristics of sloping piles as a greenhouse foundation”, Osaka Prefecture University Graduate School of Agricultural and Life Sciences Research Report (2003), Vol.55, pp.23-28

  The inventor of this application touched the said nonpatent literature 1 in the process of creating the anchor construction method applicable to a clot-like weak rod. In this Non-Patent Document 1, there is a report entitled “Fundamental experiment on pulling characteristics of sloping pile as a greenhouse foundation” and that a specific sloping pile is excellent in pulling characteristics with respect to soil. Then, assuming that the soil is similar to a clot-like fragile skeleton, the structure of a specific slant pile may serve as a hint for creating a new anchor structure that can be applied to a lumpy-like fragile skeleton. I came.

  The present invention has been proposed in view of the above circumstances, for example, it is possible to prevent the covering protective material attached to cover and protect the surface of a clot-like fragile enclosure from being peeled off, and to peel off the covering protective material It is an object of the present invention to provide a pressure fixing arm that can repair a fragile body like a lump, and an anchor method for dealing with the fragile body using the pressure fixing arm.

  In order to achieve the above object, the present invention provides a pressure fixing arm used for attaching a member to be attached to the surface of a fragile housing, wherein the anchor portion has a predetermined depth of insertion, and the anchor portion is at one end. And a pressurizing force transmission arm portion provided with a pressurizing portion at the other end, and inclined from a predetermined position of the attached member to the inside of the fragile housing with respect to the normal to the surface The fragile housing in which the head portion of the anchor portion, the head portion of which is installed with the head portion exposed to the outside from the attached member for a predetermined length, is passed through the hole and the anchor portion is driven. Generated by the applied pressure by pressing the back surface of the mounted member against the fragile housing by pressing the pressurizing portion with a desired applied pressure to a predetermined position of the mounted member with the inside held on the back. The reaction force is It is given as a couple of force to the head of the anchor part via a pressure transmission arm part, and the weakened body is pressurized so as to be sandwiched between the anchor part to which the couple is applied and the back surface of the attached member. Thus, a second reaction force is generated, and this second reaction force secures a pulling resistance force of the anchor portion.

  The present invention is characterized in that the hole and the anchor portion are connected by a screw structure.

  The present invention is characterized in that a gap is formed in the pressurizing portion so as to be easily bent by the applied pressure.

  The present invention is characterized in that a pressing bolt member is provided in the pressing portion.

  The present invention relates to a pressure fixing arm used for installing a covering protective material for covering and protecting the surface of a crumb-like fragile enclosure, or used for installing various devices on the surface, and has a predetermined rooting An arm portion having a depth and a plate-like or rod-like arm material, a pressure transmission arm portion having a hole through which the anchor portion penetrates at one end portion of the arm material and having a push bolt member at the other end portion And is driven into the inside of the fragile housing from a predetermined position of the covering protective material or the device at an angle of 0 to 45 degrees with respect to the normal of the surface, and the head is the covering protective material Alternatively, the inside of the fragile housing in which the hole of the pressurizing force transmission arm portion is attached to the head portion of the anchor portion installed so as to be exposed for a predetermined length from the surface of the device, and the anchor portion is driven The coating on the back The back surface of the covering protective material or the device is pressed against the fragile housing by propelling the push bolt member of the pressure transmission arm portion to a predetermined position of the protective material or the device with a desired pressure. The reaction force generated by the applied pressure is applied as a couple to the head of the anchor portion via the applied pressure transmission arm, and the anchor portion to which the couple is applied and the covering protective material or A second reaction force is generated by pressurizing the fragile casing between the back surface of the device and a pulling resistance force of the anchor portion is secured by the second reaction force.

  The present invention is a pressure fixing arm used for installing a covering protective material for covering and protecting the surface of a fragile casing, or used for installing and fixing various devices on the surface, and has a predetermined depth of penetration. And an arm member having a plate shape or a rod shape, and a female screw hole for connecting one end portion of the arm material to a male screw portion of the head portion of the anchor portion, or a head portion of the anchor portion. The arm member is coupled to the head portion of the anchor, having a hole for penetrating the male screw portion and having a hole for coupling with a nut and having a pressurizing portion at the other end. Is driven into the inside of the fragile housing from a predetermined position of the covering protective material or the device with an inclination in a range of 0 to 45 degrees with respect to the normal to the surface, and the pressurizing portion is the covering protective material. Or, contact the surface of the device a predetermined distance in advance, and When the anchor portion is driven into the predetermined distance, a predetermined pressing force is generated in the pressurizing portion, and the back surface of the covering protective material or the device is pressed against the fragile housing, so that a reaction force of the pressing force is generated. And acting as a couple of forces on the head of the anchor portion via the pressure transmission arm portion, and being pressed so that the fragile housing is sandwiched between the anchor portion and the back surface of the covering protective material or the device. A second reaction force is generated, and this second reaction force secures a pulling resistance force of the anchor portion.

  The present invention uses the pressure fixing arm to incline the anchor portion from a predetermined position of the covering protective material or the device to the inside of the fragile housing within a range of 0 to 45 degrees with respect to the normal of the surface. The anchor is installed so that the head is exposed for a predetermined length from the surface of the covering protective material or the device, and the hole of the pressure transmission arm is attached to the head of the anchor Then, the push bolt member of the pressurizing force transmitting arm portion is propelled with a desired pressurizing force to a predetermined position of the covering protective material or the machine that the anchored portion is driven into the back of the fragile housing, The reaction force generated by the applied pressure is applied as a couple to the head of the anchor portion via the applied pressure transmission arm portion by pressing the back surface of the covering protection material or the device against the fragile housing. In addition, a pressure is applied so that the brittle casing is sandwiched between the anchor portion to which the couple is applied and the back surface of the covering protective material or the device, thereby generating a second reaction force, and the anchor portion is generated by the second reaction force. It relates to an anchor method for dealing with a fragile body characterized by securing a pulling-out resistance.

  The present invention uses the pressure fixing arm, and connects the arm material to the head of the anchor portion from a predetermined position of the covering protective material or the device to the inside of the fragile housing, with respect to the perpendicular to the surface. Inclined in the range of 0 to 45 degrees, and the pressure part reaches the surface of the covering protective material or the device in advance by a predetermined distance, and further drives the anchor part to drive the predetermined distance. When a predetermined pressing force is generated in the pressurizing portion and the back surface of the covering protective material or the device is pressed against the fragile housing, the reaction force of the pressing force is transferred to the anchor via the pressing force transmitting arm portion. Acting as a couple of forces on the head of the part, and the second reaction force is generated by being pressurized so that the brittle casing is sandwiched between the anchor part and the back surface of the covering protective material or the device. By said en Securing the pulling resistance of over portion, characterized in that.

  The pressure fixing arm according to the present invention includes an anchor portion having a predetermined penetration depth, a hole through which the anchor portion penetrates at one end portion, and a pressure portion or a push bolt member provided at the other end portion. It consists of a pressure transmission arm part. The pressure transmission arm portion may be a plate-shaped or bar-shaped arm material. Therefore, the present invention is achieved by two members, ie, an anchor portion having a predetermined length and a plate-shaped or bar-shaped pressurizing force transmitting arm portion, and thus can be configured very simply.

  Incidentally, the present invention is achieved by three members even if a push bolt member is included. Using the pressure fixing arm having such a structure, the member to be attached (covering protective material or equipment) is inclined from a predetermined position to the inside of the fragile housing within a range of 0 to 45 degrees with respect to the normal to the surface of the fragile housing. The anchor portion is driven, and the anchor portion is installed so that its head is exposed for a predetermined length from the surface of the covering protective material or the device. Furthermore, the process of mounting | wearing the hole of a pressurizing force transmission arm part to the head of an anchor part is passed. Subsequently, the pressurizing part or the push bolt member of the pressurizing force transmission arm part is pushed to a predetermined position of the covering protective material or the equipment in which the inside of the fragile casing in which the anchor part is driven is held on the back surface, and the covering A process of pressing the back surface of the protective material or equipment against the fragile housing is performed. And, by these steps, the reaction force generated by the applied pressure is applied as a couple to the head of the anchor portion via the applied pressure transmission arm portion, and the anchor portion, the covering protective material, or the device that applied the couple force. The second reaction force is generated by pressurizing the brittle casing with the back surface of the anchor member, and the pulling resistance force of the anchor portion can be secured by the second reaction force. That is, through these steps, it is possible to construct an anchor method for dealing with fragile bodies.

  Therefore, by applying the pressure fixing arm according to the present invention and the anchor method for dealing with the weak housing using the same, the wind power during the typhoon to be peeled off from the housing against the covering protective material for covering and protecting the weak housing By applying a pressure (pre-stress) that far exceeds the seismic force during an earthquake, it is possible to ensure safety performance during the construction process. In addition, the present invention also provides a safety performance to the equipment installed on the surface of the fragile enclosure by applying a pressure much higher than the wind power at the time of a typhoon or the seismic force at the time of an earthquake to be peeled off from the enclosure. Can be secured.

It is a schematic explanatory drawing which illustrates roughly the structure of the pressurization fixing arm which concerns on 1st Embodiment of this invention. FIG. 3 is a cross-sectional explanatory view illustrating an example in which the pressure fixing arm according to the first embodiment of the present invention is applied to a fragile housing whose surface is covered and protected by a protective wall panel, in a cross-sectional view. It is side surface explanatory drawing explaining the example in which the pressurization fixing arm which concerns on 1st Embodiment of this invention was applied to the weak housing by which the surface was coat | covered and protected with the protection wall panel. It is an explanatory image figure explaining the process in which the guide hole for anchors driven into a protection wall panel is formed in order to apply the anchor construction method which copes with the weak case concerning a 1st embodiment of the present invention. In the anchor construction method concerning a 1st embodiment of the present invention, it is an explanatory image figure explaining the process of mounting a pressurizing force transmission arm on the head of an anchor exposed for a predetermined length from a protection wall panel. In an anchor construction method concerning a 1st embodiment of the present invention, it is an explanatory image figure explaining a process which penetrates a protection wall panel and drives an anchor into a weak case. In the anchor construction method concerning a 1st embodiment of the present invention, it is an explanatory image figure explaining a process which pushes a pushing bolt member of a pressurizing force transmission arm with a desired pressurizing force, and presses the back of a protection wall panel on a weak case. The anchor construction method according to the first embodiment of the present invention is applied, and a reaction force is generated by being pressed so that the brittle casing is sandwiched between the anchor to which the couple is given and the back surface of the protective wall panel. It is an explanatory image figure explaining the state where the extraction resistance of the anchor is secured. The anchor construction method according to the second embodiment of the present invention is applied, and a reaction force is generated by pressing so that the brittle casing is sandwiched between the anchor to which the couple is given and the back surface of the protective wall panel. It is explanatory drawing explaining the state by which the extraction resistance force of the said anchor is ensured. The appearance of the pressure transmission arm of the pressure fixing arm according to the embodiment of the present invention is shown, (a) is an external perspective view of the pressure transmission arm of the pressure fixing arm according to the first embodiment, (b). It is an external appearance perspective view of the pressurizing force transmission arm of the pressurization fixing arm concerning a 2nd embodiment.

  Hereinafter, a first embodiment relating to a pressure fixing arm according to the present invention and an anchor method for dealing with a fragile body using the same will be described with reference to the drawings. The first embodiment described below is merely an example embodying the configuration of the present invention, and the present invention can be modified in various ways without departing from the matters described in the claims. Can do. In the following first embodiment, a pressure fixing arm applied to a fragile housing whose protective wall panel is covered and protected and an anchor method for dealing with the fragile housing using the same will be described.

  The present invention relates to a pressure fixing arm applicable to a brittle frame constructed of a bubble-mixed lightweight soil (FCB) having low strength and density compared to ordinary concrete and having high water permeability. It relates to the anchor method to deal with the fragile body that had been. When the pressure fixing arm 1 according to the present invention is applied, as shown in FIGS. 1 to 3, for example, a protective wall panel P as a covering protective material that covers and protects the fragile housing B as a member to be attached to the fragile housing B On the other hand, the safety performance can be ensured by applying a pressing force far exceeding the wind power at the time of the typhoon to be peeled off from the chassis B or the seismic force at the time of the earthquake. In particular, this safety performance is naturally secured in the course of the construction of the anchor method for dealing with a fragile housing using the pressure fixing arm 1 according to the present invention. In addition to the protective wall panel P, the mounted member may be various types of equipment (see FIG. 4).

  The pressure fixing arm 1 includes an anchor 2 having a predetermined depth of penetration, for example, a depth of depth of 20 times or more of a diameter or a depth of about 10 cm to 100 cm. Further, a bent portion 31 is formed in the middle of a plate-like or bar-like, for example, plate-like arm material, and a hole 32a through which the anchor 2 passes is provided at one end 32 that is one plate piece portion via the bent portion 31. The other end portion 33, which is the other plate piece portion of the arm material, is provided with the pressure transmission arm 3 provided with the push bolt 4 (see FIG. 10A).

  The other end 33 is provided with a hole through which the push bolt 4 passes. The push bolt 4 is pushed at the other end 33 with a wrench or the like so that the tip of the push bolt 4 penetrates the hole, so that the tip 41 presses the protective wall panel P.

  In the first embodiment, the angle of the other end portion 33 with respect to the one end portion 32 of the bent portion 31 is an obtuse angle of 135 to 180 degrees. In the present invention, the arm material is allowed to be a flat plate material in which the angle of the other end portion 33 with respect to the one end portion 32 of the bent portion 31 is 180 degrees. Further, as described above, the pressure transmission arm 3 may be plate-shaped or rod-shaped.

  In FIG. 1 to FIG. 3, the pressure fixing arm 1 applied to the fragile housing B has an anchor 2 extending from a predetermined position of the protective wall panel 1 to the inside of the fragile housing B with respect to the normal to the surface of the fragile housing B. It is driven at an angle of 45 degrees, for example, 30 degrees in FIG. In particular, the head 21 is installed such that a predetermined length (for example, 2 to 8 cm) is exposed from the surface of the protective wall panel P. A hole 32 a of the pressure transmission arm 3 is attached to the head 21 of the anchor 2.

  Further, the push bolt 4 provided in the pressure transmission arm 3 is propelled with a desired pressure to a predetermined position of the protective wall panel P holding the inside of the fragile housing B into which the anchor 2 is driven, on the back. The back surface of the protective wall panel P is pressed against the fragile housing B. The pressurizing force for propelling the push bolt 4 can be set to a desired pressurizing force by using, for example, a torque wrench. For example, the push bolt 4 can be propelled with a pressing force of 250 to 500 Newton (N), and further 500 to 1000 Newton (N).

  As a result, a reaction force is generated in the protective wall panel P due to the applied pressure, and this reaction force is applied as a couple to the head of the anchor 2 via the applied pressure transmission arm 3. The anchor 2 to which the couple is applied is pressurized so as to sandwich the fragile casing B with the back surface of the protective wall panel P, and a second reaction force is generated in the fragile casing B against the applied pressure. Based on this second reaction force, the anchor 2 is provided with a pulling resistance force. Moreover, the pulling resistance force is obtained as a force having substantially the same value as the pressure set on the push bolt 4.

  Hereinafter, based on FIGS. 4-8, the anchor construction method which copes with the weak housing using the pressurization fixing arm which concerns on this invention is demonstrated easily.

  First, as shown in FIG. 4, a hole inclined at a predetermined angle in a range of 0 to 45 degrees with respect to a normal of the surface of the fragile casing B toward the inside of the fragile casing B at a predetermined position of the protective wall panel P. Form. This hole is a guide hole for driving the anchor 2.

  Next, as shown in FIG. 5, the anchor 2 is driven into the guide hole so that the head 21 is exposed for a predetermined length from the surface of the protective wall panel P. A hole 32 a of the pressure transmission arm 3 is attached to the head 21 of the anchor 2.

  Further, as shown in FIG. 6, the anchor 2 is driven deeper into a guide hole opened from a predetermined position of the barrier panel P toward the inside of the fragile housing B. When the anchor 2 is driven deeply into the guide hole, as shown in FIG. 7, a desired pressure (for example, 500 N) is set on the torque wrench and the pressure transmission arm 3 is pushed by the torque wrench. The bolt 4 is propelled toward the protective wall panel P. Thereby, the back surface of the protective wall panel P is pressed against the fragile casing B as shown in FIG.

  In FIG. 8, in the fragile housing B to which the pressure fixing arm 1 is applied, a reaction force is generated by the applied pressure, and this reaction force is applied as a couple to the head 21 of the anchor 2 via the applied pressure transmission arm 3. Is given. Furthermore, the anchor 2 to which the couple is given is pressurized so as to sandwich the fragile casing B with the back surface of the protective wall panel P. In the case B vulnerable to this pressurization, a second reaction force different from that generated by pressurization by the push bolt 4 is generated. The second reaction force is provided as a pulling resistance force of the anchor 2. In particular, the pull-out resistance force of the anchor 2 can be obtained with substantially the same value as the set pressure of the torque-equipped wrench.

  Here, as an example of the force for peeling the protective wall panel from the fragile enclosure, a negative wind pressure generated during a typhoon and an earthquake inertia force generated during an earthquake are assumed. Based on this, it was assumed that a large-scale earthquake occurred during a strong wind, and the maximum pull-out load of the anchor of the fixed pressure arm was calculated.

The calculation conditions are as follows.
(1) Wall height (h) h = 15.00m
(2) Area per protective wall panel (s) s = 0.27 (square m)
(3) Weight per protective wall panel (w) w = 21 (kg)
(4) Seismic inertia force (kh) kh = 0.24
The protective wall panel is a rectangle of 900 mm × 300 mm.

The wind pressure (P) borne by one protective wall panel is obtained.
P = 6055.7504 (Nf)
In addition, numerical value [air density 1.23 (kg / m ³ ), design standard wind speed 40 (m / s) shown in "Road civil engineering barrier work guideline (2012 version)" (4-2-7 wind load) , Drag coefficient 1.2, gust response coefficient 1.9, etc.].

Obtain the earthquake inertia force (Gh) that is borne by each protective wall panel.
Gh = 9.8 × w × kh = 49.392 (Nf)

The maximum load (Fmax) per panel is as follows.
Fmax = P + Gh = 6555.1424 (Nf)

Then, when two pressure fixing arms are applied per panel, the maximum pull-out strength (F) per anchor is as follows.
F = 6555.1424 / 2 = 327.5712 (Nf)

  In the present invention, for example, when the pressing bolt 4 is propelled by setting a pressurizing force of 500 N with a wrench with torque, it is possible to secure the anchor pull-out resistance of approximately the same value as 500 N. On the other hand, the maximum extraction strength (F) per anchor may be 327.5712 (Nf) as described above. Therefore, by applying the anchor method of the present invention to the covering protective material that covers and protects the fragile enclosure, the applied pressure (pre-stress) is much higher than the wind power at the time of typhoon to be peeled off from the enclosure and the seismic force at the time of earthquake. ), It is understood that safety performance can be secured during the construction process.

  Next, a pressure fixing arm according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 9 and FIG. 10B show a pressure transmission arm of the pressure fixing arm according to the second embodiment of the present invention. In the following description, only the configuration different from the pressure fixing arm 1 according to the first embodiment is described, and the description of the same configuration is omitted.

  As shown in FIG. 10 (b), the pressure transmission arm 103 has a hole 132a at one end 132 having a female screw structure, while the anchor portion 2 has a male screw structure. The part 2 is connected with a screw structure. In addition, the pressurizing force transmission arm 103 is formed with a gap 106 in the pressurizing portion 105 which is the other end portion 133 so as to be easily bent by the applied pressure. The pressurizing force transmission arm 103 may have a structure in which the anchor portion 2 passed through the hole 132a is coupled with a nut (not shown) in addition to the case where the hole 132a of the one end portion 132 has a female screw structure.

  Hereinafter, regarding the anchor method for dealing with the fragile skeleton B using the pressure fixing arm according to the second embodiment of the present invention, portions different from the first embodiment will be briefly described.

  As shown in FIG. 9, the female screw hole 132 a formed in the one end portion 132 of the pressurizing force transmission arm 103 is connected to the anchor portion 2 having a male screw structure. At that time, the head portion 121 of the anchor portion 2 is exposed from the one end portion 132 to a predetermined length (for example, 1 to 3 cm), and the anchor 2 is driven into a guide hole formed in the protective wall panel P. And the pressurization part 105 makes a predetermined distance (for example, 1-2 cm) contact the surface of the protective wall panel P ahead (refer the code | symbol Y in FIG. 9).

  Further, the anchor 2 is driven deeply (see FIG. 6), and the pressure unit 105 is pressed against the protective wall panel P. Thereby, the back surface of the protective wall panel P is pressed against the fragile housing B (see FIG. 9).

  In the fragile housing B to which the pressure fixing arm is applied, a reaction force is generated by the applied pressure, and this reaction force is applied as a couple to the head 21 of the anchor 2 through the applied pressure transmission arm 103. Furthermore, the anchor 2 to which the couple is given is pressurized so as to sandwich the fragile casing B with the back surface of the protective wall panel P. In the fragile housing B against this pressurization, a second reaction force different from that generated by the pressurization by the pressurization unit 105 is generated. The second reaction force is provided as a pulling resistance force of the anchor 2.

  While the present invention has been described in detail with respect to several embodiments that the applicant believes to be the best, the present invention is not limited to the embodiments described above without departing from the scope of the claims. Various design changes can be made without any change. In the above embodiment, the present invention is used, the protective wall panel is covered and protected on the surface of the fragile casing, the protective wall panel is prevented from peeling off, and the peeled protective wall panel can be restored to the fragile casing. The example to do was demonstrated. However, the present invention is not limited to such an example, and the present invention is applied to an example in which a predetermined device is installed in the fragile housing, and the device is prevented from peeling off, and the peeled device is turned into the fragile housing. It can be repairable.

  Moreover, although the form with which the nut was attached to the anchor was disclosed in FIGS. 4-8, this nut was only provided in order to make it easy to drive an anchor into a weak housing, and is an essential structure in the present invention. Is not something. In addition, the material of the components constituting the pressure fixing arm is not limited, and a metal or other material suitable for the application can be used.

1 ······· Pressure fixing arm 2 ······················ Anchor 21, 121 ··· Head 3, 103 ··· Pressure transmission arm 31 ··· ... Bending part 32,132 .... One end part 32a, 132a .... Hole 33, 133 ... ... Other end part 4 ... ... Push bolt 41 ... ············ 105 ·······························································································

Claims (8)

A pressure fixing arm used to attach a member to be attached to the surface of the fragile housing,
An anchor portion having a predetermined penetration depth;
A pressure transmission arm portion having a hole through which the anchor portion penetrates at one end portion and a pressurizing portion at the other end portion;
The anchor portion that is driven from a predetermined position of the mounted member into the weak housing by being inclined with respect to the normal of the surface, and the head portion of the anchor member is exposed to a predetermined length from the mounted member. Is passed through the hole,
The back surface of the attached member is pressed against the fragile housing by pressing the pressurizing portion with a desired applied pressure to a predetermined position of the attached member that the inside of the fragile housing in which the anchor portion is driven is held back. By being pressed,
The reaction force generated by the applied pressure is applied as a couple to the head of the anchor portion via the applied pressure transmission arm, and the anchor portion to which the couple is applied and the back surface of the attached member The second reaction force is generated by being pressurized so that the fragile housing is sandwiched between
With this second reaction force, the pullout resistance force of the anchor portion is ensured.
A pressure fixing arm. The hole and the anchor portion are connected by a screw structure,
The pressure fixing arm according to claim 1. In the pressurizing part, a gap was formed for easy bending by the applied pressure.
The pressure fixing arm according to claim 1, wherein the pressure fixing arm is provided. A pressing bolt member was provided in the pressurizing part,
The pressure fixing arm according to any one of claims 1 to 3, wherein the pressure fixing arm is provided. A pressure fixing arm used to install a covering protective material that covers and protects the surface of a clot-like brittle enclosure, or used to install various devices on the surface;
An anchor portion having a predetermined penetration depth;
A plate-shaped or bar-shaped arm material, having a hole through which the anchor portion penetrates at one end portion of the arm material, and a pressurizing force transmission arm portion having a push bolt member at the other end portion,
It is driven into the inside of the fragile housing from a predetermined position of the covering protective material or the device at an angle of 0 to 45 degrees with respect to the normal of the surface, and its head is the surface of the covering protective material or the device. The hole of the pressure transmission arm part is attached to the head of the anchor part installed to be exposed for a predetermined length from
The push bolt member of the pressurizing force transmission arm portion is propelled with a desired pressurizing force to a predetermined position of the covering protective material or the machine that the inside of the fragile housing in which the anchor portion is driven is held back. By pressing the back surface of the covering protective material or the device against the fragile housing,
The reaction force generated by the applied pressure is applied as a couple to the head of the anchor portion via the applied pressure transmission arm portion, and the anchor portion to which the couple is applied and the covering protective material or the A second reaction force is generated by being pressurized so that the fragile housing is sandwiched between the back surface of the device,
With this second reaction force, the pullout resistance force of the anchor portion is ensured.
A pressure fixing arm. A pressure fixing arm used to install a covering protective material for covering and protecting the surface of the fragile housing, or used to install and fix various devices on the surface;
An anchor portion having a predetermined penetration depth;
A plate-like or rod-like arm material, one end of this arm material is passed through a female screw hole for coupling with the male screw portion of the head portion of the anchor portion, or the male screw portion of the head portion of the anchor portion. A pressure transmission arm portion having a hole for coupling with a nut and having a pressurizing portion at the other end,
The arm member coupled to the head portion of the anchor portion is inclined from a predetermined position of the covering protective material or the device to the inside of the fragile housing within a range of 0 to 45 degrees with respect to the normal of the surface. The pressurizing unit is brought into contact with the surface of the covering protective material or the device in advance by a predetermined distance, and further, the predetermined pressurizing force is generated in the pressurizing unit by driving the anchor unit for the predetermined distance. Then, the back surface of the covering protective material or the device is pressed against the fragile housing,
The reaction force of the applied pressure acts as a couple of forces on the head of the anchor part via the applied pressure transmission arm part, and the brittle casing is formed between the anchor part and the back surface of the covering protective material or the device. The second reaction force is generated by being pressed so as to sandwich,
With this second reaction force, the pullout resistance force of the anchor portion is ensured.
A pressure fixing arm. Using the pressure fixing arm according to claim 5,
The anchor portion is driven in a range of 0 to 45 degrees with respect to the normal of the surface from the predetermined position of the covering protective material or the device to the inside of the fragile housing, and the head portion is the covering protective material or the head Install the anchor part so that it is exposed for a predetermined length from the surface of the equipment,
Attach the hole of the pressure transmission arm part to the head of the anchor part,
The push bolt member of the pressurizing force transmitting arm portion is propelled to a predetermined position of the covering protective material or the device that the inside of the fragile housing in which the anchor portion is driven is held back, and the covering By pressing the back of the protective material or the device against the fragile housing,
The reaction force generated by the applied pressure is applied as a couple to the head of the anchor portion via the applied pressure transmission arm portion, and the anchor portion to which the couple is applied and the covering protective material or the device A second reaction force is generated by applying pressure so as to sandwich the fragile housing with the back surface,
The second reaction force secures the pullout resistance of the anchor portion.
Anchor construction method to deal with fragile bodies characterized by this. Using the pressure fixing arm according to claim 6,
The arm member coupled to the head of the anchor portion is driven into the fragile housing from a predetermined position of the covering protective material or the device with an inclination of 0 to 45 degrees with respect to the normal to the surface. The pressurizing part reaches the surface of the covering protective material or the device in advance by a predetermined distance, and the anchoring part is further driven to propel the predetermined distance to generate a predetermined pressurizing force on the pressurizing part. By pressing the back surface of the covering protective material or the device against the fragile housing,
The reaction force of the applied pressure acts as a couple of forces on the head of the anchor part via the applied pressure transmission arm part, and the brittle casing is formed between the anchor part and the back surface of the covering protective material or the device. The second reaction force is generated by being pressed so as to sandwich,
The second reaction force secures the pullout resistance of the anchor portion.
Anchor construction method to deal with fragile bodies characterized by this.