JP5123813B2 - Attaching the wall fixture - Google Patents

Description

The present invention relates to a method of mounting wall fastener to be fixed so as to sandwich the wall material in the thickness direction.

Conventionally, a handrail installed on a wall is known. The handrail is mainly composed of a long handrail body and an attachment (wall fixture) provided at an end of the handrail body and supporting the handrail body (supported body) at a predetermined height. ing. The fixture plays an important role of transmitting the load applied to the handrail body to the wall material, and is fixed so as to sandwich the wall material in the thickness direction (see Patent Document 1).
Patent Registration No. 2903313

  However, in the above-described conventional technology, when a fixture is directly attached to a wall material made of gypsum board or the like without using a pier, etc., when a load is applied to the handrail main body, The wall material is easily damaged by the load received from the back side.

The present invention has been made in view of the above-described conventional problems, and can extend the life of a wall material to which a wall fixture is attached, and when a load is applied to a supported body, the wall material is It aims at providing the attachment method of the wall fixture which can delay reaching to destruction.

The method for attaching the wall fixture according to the present invention includes a locking means including a plate material that is curved in an arch shape and presses the back surface of the wall material, and a front side of the wall material in a state of being connected to the locking means. Provided with a supporting means for supporting a supported body, and the wall fixing tool is fixed by sandwiching the wall material in the thickness direction by the locking means and the supporting means. Mounting the operating means for operating the locking means from the front side of the wall material in a state where the locking means is on the back side of the wall material; The step of inserting the locking means into the back side of the wall member in a state where the operation means is mounted from the hole formed in the wall member, and the support member through the hole of the wall member, Connecting to the locking means located on the back side of the When connected to Kigakaritome means, extruding said operating means by said support means and thereby dropping the rear side of the wall material.

According to this invention, the operating means mounted on the locking means inserted on the back side of the wall material is pushed out by the support means when the support means is connected to the locking means, Since it falls off to the back side, the trouble of removing the operation means on the back side of the wall material can be saved.
Moreover, the board | plate material of the shape curved in the shape of an arc which presses the back surface of a wall material is formed with the leaf | plate spring. When a load is applied to the supported body, a force is transmitted to the locking means via the support means. And the board | plate material formed with the stainless steel for springs which comprises a latching means absorbs a part of energy which the fixture received by the elastic deformation. And the force transmitted to the back surface of a wall material from a board | plate material reduces. As a result, it is possible to suppress so-called fatigue, in which an external force is repeatedly applied to the wall material to reduce the strength of the wall material. In addition, when a dynamic load such as an impact is applied to the supported body, a part of the energy received by the fixture is absorbed by largely elastically deforming the plate made of spring stainless steel. Reduce the load transmitted to the wall material. In other words, in order to cause the wall material to break down, a larger load than before must be applied to the supported body. Therefore, the lifetime of the wall material to which the wall fixture is attached can be extended, and the wall material can be delayed from breaking.

  ADVANTAGE OF THE INVENTION According to this invention, while extending the lifetime of the wall material to which the wall fixing tool was attached, when a load is added to a to-be-supported body, it can delay that a wall material leads to destruction.

  Hereinafter, a handrail mounting tool and a mounting method of the handrail according to the present embodiment will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a view for explaining a handrail attachment (wall fixture) fixed to the wall material W1. FIG. 2 is a view for explaining a handrail attachment fixed to the wall material W1.

  As shown in FIG. 1, the handrail attachment of the first embodiment includes a fixing means 2 fixed to an edge portion of an installation hole W1a formed in the wall material W1, a wall material W1 and a wall material W2. Is inserted in the space between the mounting holes W1a, and is provided on the front surface F side of the wall material W1 in a state of being connected to the locking means 3 and the locking means 3 that presses the back surface B of the wall material W1, And supporting means 4 for supporting a handrail main body (supported body) H (see FIGS. 14, 15, and 16).

  In the state where the fixture 100 is attached to the wall material W1, as shown in FIGS. 1 and 2, the locking means 3 is parallel to the wall material W1 with a predetermined distance from the wall material W1 and the wall material W1. Is provided on the back surface B side of the wall material W1. Further, the front surface F of the wall material W1 is provided with support means 4, and the fixture is installed so that the wall material W1 is sandwiched between the locking means 3 and the support means 4. In the present embodiment, a case will be described in which a fixture is directly fixed to a wall material W1 such as a gypsum board that is likely to be damaged by the fixture without using a perforation or the like.

  3A and 3B are diagrams for explaining the fixing means 2, in which FIG. 3A is a side view, FIG. 3B is a cross-sectional view taken along the line IV-IV in FIG. 3C, and FIG. Indicates.

  The fixing means 2 is for reinforcing the peripheral portion of the installation hole W1a formed in the wall material W1. As shown in FIGS. 3A, 3B, and 3C, the fixing means 2 is provided along an annular contact portion 21 and an inner peripheral edge of the contact portion 21. And a mounting portion 22 extending substantially perpendicular to the contact portion 21. When the fixing means 2 is installed in the installation hole W1a of the wall material W1, the contact portion 21 contacts the front surface F of the wall material W1, and the mounting portion 22 is connected to the side edge (thickness direction) of the installation hole W1a. Contact).

  The locking means 3 is for supporting the support member 4 at a predetermined position on the front surface F side of the wall material W1 and transmitting the load applied to the handrail main body H to the back surface B of the wall material W1. The locking means 3 includes two plate members (hereinafter referred to as plate springs) 31 having the same shape, a holding portion 33 that holds the plate springs 31, and a retaining member 34 that positions the plate springs 31 at predetermined positions. It has. The locking means 3 includes two leaf springs 31 that are rotatably connected to each other at an intermediate portion.

  4A and 4B are diagrams for explaining the leaf spring 31, wherein FIG. 4A is a front view, FIG. 4B is a cross-sectional view at the VV position of FIG. 4A, and FIG. (D) shows a rear view.

  As shown in FIGS. 4A to 4D, the leaf spring 31 is a metal thin plate having a band shape in plan view, and is curved in an arc shape in side view. And the press part 31b which curved in the direction opposite to the curve direction of the whole leaf | plate spring 31 is formed in both ends. The pressing portion 31b is a portion that presses the peripheral portion rear surface B of the installation hole W1a formed in the wall material W1 and transmits the load applied to the handrail main body H to the wall material W1. At the center of the leaf spring 31, an engagement hole 31a having a predetermined shape in front view is formed, into which the holding portion 33 is inserted. The engagement hole 31a is a pair of engagement portions formed in a concave shape on the edge of the sliding portion 31a1 so as to face each other across the center of the circle of the sliding portion 31a1 in a plan view. Part 31a2. Further, one rotation stopper (stopper) 31 c is formed on the longitudinal side of the leaf spring 31. The rotation stopper 31c extends in a direction opposite to the bending direction (protruding direction) of the leaf spring 31.

  FIG. 5 is a diagram for explaining a state in which the handrail fixture fixed to the wall material W1 is viewed from the back surface B side of the wall material W1, and (a) shows the leaf spring 31 on the back surface B side of the wall material W1. The inserted state is shown, and (b) shows a state in which the leaf spring 31 is rotated by a predetermined angle.

  As shown in FIGS. 5A and 5B, the two leaf springs 31 rotate one of the two leaf springs 31 on the back surface B side of the wall material W1. And attached in a state of being orthogonal to a substantially cross shape.

  The two leaf springs 31 are holding portions with the other leaf spring 31 rotated 180 degrees in plan view with respect to one leaf spring 31 and the bending direction (projection direction) directed in the same direction. 33 is attached. Then, as shown in FIGS. 5A and 5B, the rotation stop 31 c of one leaf spring 31 arranged on the outer side in the bending direction is such that one leaf spring 31 is opposite to the other leaf spring 31. When rotating at a predetermined angle (approximately 90 degrees in the present embodiment), it engages with the side portion of the other leaf spring 31 to stop the rotation of the leaf spring 31 and two leaf springs. The opening angle of 31 is regulated. In this way, the rotation stopper 31c regulates the opening angle of the pair of leaf springs 31 and prevents the leaf springs 31 from rotating excessively. Then, the back surface B of the wall material W1 is pressed against the pressing portion 31b of the leaf spring 31 in a state where the two leaf springs 31 are opened at a predetermined opening angle. Thereby, the load transmitted from the leaf spring 31 to the back surface B of the wall material W1 is dispersed.

  In the present embodiment, the material of the leaf springs 31 is spring stainless steel (see JIS G 4313). Examples of the stainless steel for spring include SUS 301-CSP 1 / 2H, SUS 301-CSP 3 / 4H, SUS 301-CSP H, SUS 301-CSP EH, SUS 301-CSP SEH, and SUS 304-CSP 1 / 2H. SUS 304-CSP 3 / 4H, austenite type such as SUS 304-CSP H, martensite type such as SUS 420J2-CSP 0, SUS 631-CSP 0, SUS 631-CSP 1 / 2H, SUS 631-CSP 3 / And precipitation hardening systems such as 4H, SUS 631-CSP H, SUS 632 J1-CSP 1 / 2H, and SUS 632 J1-CSP 3 / 4H. The material of the leaf spring 31 is preferably austenitic spring stainless steel. In the present embodiment, SUS 304-CSP 1 / 2H is used as the material of the leaf spring 31. By using SUS 304-CSP 1 / 2H having a predetermined hardness as the material of the leaf spring 31, it is possible to extend the mold used for manufacturing the leaf spring 31 and increase the mass productivity. Moreover, the material which has a predetermined physical property can be easily obtained by using the stainless steel for springs standardized as a material of the leaf | plate spring 31. FIG.

  Moreover, as thickness of the leaf | plate spring 31, it is preferable that it is 1.7 mm or more, and it is more preferable that it is 1.8 mm or more. Moreover, as thickness of the leaf | plate spring 31, it is preferable that it is 2.3 mm or less, and it is more preferable that it is 2.2 mm or less. If the thickness of the leaf spring 31 is less than 1.7 mm, it tends to be difficult to ensure the rigidity as the locking means 3. If the thickness of the leaf spring exceeds 2.3 mm, the handrail body H When a load is applied, the leaf spring 31 tends to be difficult to deform, and it is difficult to process the leaf spring 31 into an arcuate shape.

  FIG. 6 is a view for explaining the holding portion 33, FIG. 6 (a) shows a side view, FIG. 6 (b) shows a cross-sectional view at the IV-IV position of (c), and FIG. Shows a front view. 7A and 7B are diagrams for explaining the holding portion 33. FIG. 7A shows a cross-sectional view at the position II-II in FIG. 6B, and FIG. Sectional drawing in the II position is shown.

  The holding portion 33 is a cylindrical member for integrating the locking means 3 and the support member 4. The holding portion 33 holds the two leaf springs 31 and the retaining member 34 on the peripheral surface side, and holds the support means 4 described later in an attachment / detachment hole 33a formed so as to penetrate the center. As shown in FIG. 6A and FIG. 6B, the holding portion 33 is one of the two leaf springs 31, an attachment portion 33 b that is a portion to which the two leaf springs 31 are attached. It includes an engagement protrusion 33c that is a part for rotating only the spring 31 together with the rotation of the holding part 33, and a transmission part 33d that is a part that transmits a load to the leaf spring 31 while preventing the leaf spring 31 from falling off. .

  As shown in FIGS. 7A and 7B, the mounting section 33b has a circular cross-sectional shape. The outer diameter of the attachment portion 33b is substantially equal to or slightly smaller than the inner diameter of the sliding portion 31a1 of the engagement hole 31a formed in the leaf spring 31. Thereby, even if the leaf | plate spring 31 attached only to the attachment part 33b rotates centering on the axis of the attachment-and-detachment hole 33a, the holding | maintenance part 33 does not interlock | cooperate with this rotation. Further, as shown in FIGS. 7A and 7B, a pair of engaging protrusions 33c are formed across the center of the attachment / detachment hole 33a so as to protrude from the outer peripheral surface of the attachment part 33b. ing. Of the two leaf springs 31, the leaf spring 31 attached to the portion where the engagement protrusion 33c is formed engages the engagement protrusion 31c with the engagement portion 31a2 of the engagement hole 31a. As a result, the leaf spring 31 attached to the portion where the engaging projection 33c is formed rotates in conjunction with the rotation of the holding portion 33 when the holding portion 33 rotates about the axis of the attachment / detachment hole 33a. To do.

  Therefore, only one of the two leaf springs 31 attached to the holding portion 33 can be rotated in conjunction with the rotation of the holding portion 33.

  Here, the shape of the engagement hole 31a of the leaf spring 31 has a complex shape as described above. Thereby, even if the shape of the engagement hole 31a formed in the two leaf springs 31 is the same, if only one leaf spring 31 is engaged with the engagement protrusion 33c of the holding portion 33, Only one leaf spring 31 can be rotated together with the holding portion 33. That is, it is not necessary to make the shapes of the engagement holes 31 a formed in both the leaf springs 31 different from each other according to the attachment position of the holding portion 33. Therefore, the two leaf springs 31 can have the same shape, the leaf springs 31 can be easily mass-produced, and the leaf springs 31 can be stored and managed easily.

  The transmission portion 33d is formed at the end of the holding portion 33 so as to protrude outward in the radial direction of the attachment / detachment hole 33a, as shown in FIGS. 6 (a), 6 (b), and 6 (c). It is a bowl-shaped part. When the holding portion 33 presses the peripheral edge portion of the engagement hole 31a of the leaf spring 31 and receives a load applied to the handrail main body H via the support means 4, the transmission portion 33d is connected to the attachment portion 33b and the engagement protrusion. A force is transmitted to the leaf spring 31 attached to the portion 33c. Moreover, the transmission part 33d prevents the leaf | plate spring 31 from dropping from the holding | maintenance part 33 with the retaining member 34 mentioned later.

  The retaining member 34 is a substantially annular member (see FIG. 11). The retaining member 34 is installed by being fitted into a circumferential groove 33 e formed in the holding portion 33. The retaining member 34 restricts the two leaf springs 31 from moving in the direction of the central axis of the attaching / detaching hole 33 a of the holding portion 33 and prevents the two leaf springs 31 from falling off the holding portion 33.

  FIG. 8 is a view for explaining the support means 4, (a) shows a front view, and (b) shows a side view. FIG. 9 is a view for explaining the support means 4 and shows a cross-sectional view at the XX position in FIG.

  The support means 4 supports the end of the handrail main body H at a predetermined position of the wall material W1 and integrates the locking means 3 provided on the back surface B side of the wall material W1 and the handrail main body H. Is. Further, the support means 4 has a role of operating and rotating one of the two leaf springs 31 of the locking means 3 from the front surface F side of the wall member W1 when the fixture 100 is attached. Have.

  As shown in FIGS. 8A, 8 </ b> B, and 9, the support unit 4 includes a main body portion 41, a flange portion 42, and a connecting portion 43. The main body 41 is a substantially disk-shaped part for fixing the handrail main body H, and on one surface, a screw hole 41b for fixing the handrail main body H to a fixture, and for rotating the handrail main body H. A groove 41c for engaging the jig is formed. The collar portion 42 is a portion for bringing the support member 4 into contact with the contact portion 21 of the fixing device 2 and sandwiching the wall material W1 together with the two leaf springs 31. It is formed to extend toward the direction. The connecting portion 43 is a shaft-like portion for attaching the locking means 3 and is formed so as to protrude from the other surface of the main body portion 41. The connecting portion 43 includes a facing portion 43a that protrudes from the other surface of the main body portion 41, and a fitting shaft 43b that is formed to protrude further from the tip of the facing portion 43a. The diameter of the insertion shaft 43b is substantially the same as the inner diameter of the attachment / detachment hole 33a of the holding portion 33, and the diameter of the facing portion 43a is larger than the diameter of the insertion shaft 43b. Therefore, there is a step between the fitting shaft 43b and the facing portion 43a. At the time of attachment, the connecting portion 43 is inserted into the attachment / detachment hole 33a of the holding portion 33 until it hits a step formed at the boundary between the facing portion 33a and the insertion shaft 43a. Furthermore, a through hole 41 c is formed in the support means 4 so as to penetrate the connecting portion 43 from the main body portion 41. The through hole 41c is a hole for inserting an operation string 51 described later.

  The support means 4 is fitted so that the side from which the connecting portion 43 protrudes is inserted into the installation hole W1a formed in the wall material W1. At the same time, the insertion shaft 43 b of the connecting portion 43 is mounted in the attachment / detachment hole 33 a formed in the holding portion 33 of the locking means 3.

  A method for attaching the handrail attachment will be described in detail below.

  First, the operator forms the installation hole W1a in the wall material W1. Then, the mounting portion 22 of the fixing means 2 is mounted so as to be in contact with the side edge of the installation hole W1a, and the contact portion 21 is mounted so as to be in contact with the peripheral front surface F of the installation hole W1a.

  Next, the operator prepares to insert the locking means 3 into the back surface B side of the wall material W1. When inserting the locking means 3 on the back surface B side of the wall material W1, the operation means 5 for appropriately operating the locking means 3 on the back surface B side of the wall material W1 that cannot be reached by the operator. Use.

  The operation means 5 includes an operation string 51 (see FIG. 1), a cap 53 for efficiently transmitting the force applied to the operation string 51 to the locking means 3, and a handle 52 (attached to the distal end of the operation string 51). 1).

  10A and 10B are views for explaining the cap 53 of the operation means 5, in which FIG. 10A shows a perspective view, and FIG. 10B shows a cross-sectional view at the position XI-XI in FIG. Show.

  As shown in FIGS. 10A and 10B, the cap 53 is formed by forming two insertion holes 53a in a substantially disk-shaped member. The two insertion holes 53 a are holes for folding the operation string 51.

  The operator attaches the cap 53 to the distal end portion of the holding portion 33 of the locking means 3 in advance. Further, the operator folds and passes the operation cord 51 in the middle so as to pass through the two insertion holes 53 a of the cap 53 from the attachment / detachment hole 33 a of the holding portion 33.

  When the preparation of the operation means 5 is completed, the operator inserts the locking means 3 into the back surface B side of the wall material W1 from the installation hole W1a. FIGS. 11-13 is a figure for demonstrating the procedure which fixes the attachment tool of a handrail to wall material W1. FIG. 11 is a cross-sectional view illustrating a state in which the locking means 3 is inserted into the back surface B side of the wall material W1 with the cap 53 and the operation cord 51 of the operation means 5 attached. FIG. 12 is a cross-sectional view illustrating a state in which the support means 4 is attached. FIG. 13 is a cross-sectional view illustrating a state in which the fixture is fixed so as to sandwich the wall material W1. FIG. 14 is a cross-sectional view for explaining a state in which an excessive load is applied to the handrail main body H fixed to the wall material W1, the leaf spring 31 of the locking means 3 is deformed, and the support means 4 is displaced.

  Specifically, first, the operator closes the locking means 3 in the state where the two leaf springs 31 are closed (the longitudinal direction of the two leaf springs 31 is directed in the same direction). As shown in FIG. 6, the wall material W1 is inserted from the front surface F side to the back surface B side through the installation hole W1a formed in the wall material W1. At this time, the operator pulls the end portion of the operation string 51 and the handle 52 provided at the end portion in a direction away from the front surface F side of the wall material W1, and the locking means 3 is moved to the back surface B side of the wall material W1. Support like hanging. Then, the operator passes the locking means 3 through the installation hole W1a having an inner diameter smaller than the outer diameter of the locking means 3.

  When the locking means 3 is inserted into the back surface B side of the wall material W1, the operator pulls the operating cord 51 in the horizontal direction as shown in FIG. 12, and the locking means 3 is moved to the back surface of the wall material W1. A predetermined position of B, that is, the holding portion 33 is arranged so as to be positioned at the center of the installation hole 1a.

  Next, the operator inserts the operation cord 51 into the through hole 41a from the side where the connecting portion 43 of the support means 4 is formed, and inserts the support means 4 into the installation hole W1a. At this time, the operator attaches the fitting shaft 43 b of the support means 4 to the attachment / detachment hole 33 a of the holding portion 33. Thereby, the wall material W1 is sandwiched between the two leaf springs 31 and the support means 4 in the thickness direction. At this time, the cap 53 and the operation string 51 of the operation means 5 are pushed out by the tip of the connecting portion 43 and fall to the back surface B side of the wall material W1 (see FIG. 13). In this way, the cap 53 of the operating means 5 attached to the locking means 3 inserted on the back surface B side of the wall material W1 is attached to and detached from the holding part 33 of the locking means 3 by the connecting portion 43 of the support means 4. When it is connected to the hole 33a, it is pushed out by the support means 4 and falls off to the back surface B side of the wall material W1, so that the trouble of removing the cap 53 of the operation means 5 on the back surface B side of the wall material W1 can be saved. it can.

  Next, an operator rotates the support means 4 by engaging the front-end | tip of a jig | tool with the groove | channel 41c formed in the main-body part 41 of the support means 4, and rotating a jig | tool. As the support means 4 rotates, the holding portion 33 rotates, and one of the two leaf springs 31 that is engaged with the engagement protrusion 33c of the holding portion 33 is the rotation stop 31c. Until the other leaf spring 31 is engaged. Thus, the two leaf springs 31 arranged on the back surface B of the wall material W1 are operated on the front surface F side of the wall material W1 so as to change from the state of FIG. 5A to the state of FIG. 5B. The And the press part 31b of each leaf | plate spring 31 contact | abuts to the peripheral part of the installation hole W1a of the back surface B of wall material W1.

  Finally, the operator fixes the handrail body H to the support means 4 and finishes the installation of the handrail attachment and the handrail body H.

  When a load is applied to the handrail main body H installed in this way, the load is transmitted to the two leaf springs 31 constituting the locking means 3 via the support means 4. When a load is transmitted to the leaf spring 31, the leaf spring 31 is elastically deformed to absorb a part of the energy and reduce the load transmitted from the leaf spring 31 to the wall material W1. As a result, it is possible to suppress so-called fatigue, in which an external force is repeatedly applied to the wall material W1 to reduce the strength of the wall material W1.

  FIG. 14 is a cross-sectional view for explaining a state in which a dynamic load such as an impact is applied to the handrail main body H fixed to the wall material W1, the leaf spring 31 of the locking means 3 is deformed, and the support means 4 is displaced. It is. For example, as shown in FIG. 14, when an excessive dynamic load such as an impact is applied to the handrail main body H, the leaf spring 31 of the locking means 3 is greatly elastically deformed, and the main body portion of the support means 4 41 is displaced in a direction away from the installation hole W1a to the outside of the wall material W1 (front surface F side). Thereby, a part of energy received by the fixture is absorbed, and the load transmitted to the wall material W1 is reduced. Therefore, it can avoid that a fixture destroys wall material W1. Furthermore, if the deformation of the leaf spring 31 is an elastic deformation, the leaf spring 31 returns to its original shape again when the load applied to the handrail body H is removed. Therefore, the handrail main body H and the whole fixture can also return to the original shape again, and the handrail can be continuously used.

  According to the above embodiment, the two leaf springs 31 curved in an arc shape that presses the back surface B of the wall material W1 are formed of spring stainless steel. When a load is applied to the handrail main body H, a force is transmitted to the locking means 3 via the support means 4, and the leaf spring 31 formed of stainless steel for spring is elastically deformed. Thereby, a part of the energy received by the fixture is absorbed. And the force transmitted from the leaf | plate spring 31 to the back surface B of wall material W1 reduces. As a result, it is possible to suppress so-called fatigue, in which an external force is repeatedly applied to the wall material W1 to reduce the strength of the wall material W1. Further, when an excessively large dynamic load such as an impact is applied to the handrail main body H, the support means 4 is also displaced by largely elastically deforming the leaf spring 31 formed of stainless steel for springs. Thus, a part of the energy received by the fixture 100 is absorbed, and the load transmitted to the wall material W1 is reduced. In other words, a larger load than before must be applied to the handrail body H in order to cause the wall material W1 to break down. Therefore, the life of the wall material W1 to which the handrail attachment tool 100 is attached can be extended, and the wall material W1 can be delayed from breaking even when a dynamic load such as an impact is applied. .

  In the above embodiment, the handrail mounting tool for fixing the handrail main body H, which is a supported body, to the wall is described as the wall fixing tool, but the present invention is not limited to this, for example, The wall fixing tool may be of a type that is connected to a wall material such that it is connected to a chiffon or a shelf arranged along the wall and prevents them from falling. . Or the thing of the type which connects a shelf itself to a wall fixture as a to-be-supported body may be used.

  In the following, examples of the present invention will be shown, but the present invention is not limited by the following examples as a matter of course, and it is of course possible to implement with appropriate modifications within a range that can be adapted to the purpose of the preceding and following descriptions. They are all included in the technical scope of the present invention.

(Tensile load test)
As shown in FIG. 15, a tensile load was applied to the handrail under the following conditions using a tension / compression tester. Note that the wall material W1 has a lower end sandwiched between two steel grippers S, and prevents the wall material W1 and the wall material W2 from being lifted by receiving the load of the testing machine.

Testing machine; Imada Manufacturing Co., Ltd. SDW1000SL
Load direction; Vertical upward Test temperature: 28 ℃
Test humidity; 29%
Handrail length: 500 mm (center distance between two fixtures)
Wall material W1; gypsum board thickness of wall material W1; 9.5 mm
Compression speed: 10 mm / min
Material of leaf spring; (Example) Stainless steel for spring of SUS 304-CSP 1 / 2H
(Comparative example) SUS 304 stainless steel leaf spring plate thickness; 2.0 mm
Radius of leaf spring; 64.02 mm
Leaf spring width; 25 mm
Table 1 shows the test results of the tensile load test.

  As shown in Table 1, in the example using the spring stainless steel for the leaf spring, it was able to withstand a larger load than the comparative example using the normal stainless steel for the leaf spring.

(Repeated load test)
As shown in FIG. 16A and FIG. 16B, a weight W having a predetermined weight is hung on the center portion of the handrail body H using a belt, and the weight W is placed on the testing machine D. The state is dropped from the state (FIG. 16A) (FIG. 16B), and a dynamic load is repeatedly applied to the handrail. The wall material W1 is fixed to the two support columns C installed at a predetermined interval.

Vibration load frequency: 23 times / minute Test temperature: 30 ° C (room temperature)
Wall material W1; gypsum board thickness of wall material W1; 9.5 mm
Handrail length: 500 mm (the distance between the centers of the two fixtures)
Material of leaf spring; (Example 1) Stainless steel for spring of SUS 304-CSP 1 / 2H
(Example 2) Stainless steel for spring of SUS 304-CSP 1 / 2H
(Comparative example) SUS 304 stainless steel leaf spring plate thickness; 2.0 mm
Radius of leaf spring; 64.02 mm
Leaf spring width; 25 mm
Table 2 shows the results of the repeated load test.

  As shown in Table 2, in Examples 1 and 2 in which the spring spring material is used as the material of the leaf spring, better durability is obtained than in the comparative example in which the stainless steel material is used as the material of the leaf spring. It was.

It is a figure for demonstrating the attachment tool of the handrail fixed to a wall material. It is a figure for demonstrating the attachment tool of the handrail fixed to the wall material. It is a figure for demonstrating a fixing means, (a) shows a side view, (b) shows sectional drawing in the IV-IV position of (c), (c) shows a front view. It is a figure for demonstrating a leaf | plate spring, (a) shows a front view, (b) shows sectional drawing in the VV position of (a), (c) shows a side view, (d) Shows a rear view. It is a figure explaining the state which looked at the attachment of the handrail fixed to the wall material from the back side of the wall material, (a) inserts the 1st leaf spring and the 2nd leaf spring in the back side of the wall material (B) shows the state which rotated the 1st leaf | plate spring by the predetermined angle. It is a figure for demonstrating a holding | maintenance part, (a) shows a side view, (b) shows sectional drawing in the IV-IV position of (c), (c) shows a front view. It is a figure for demonstrating a holding | maintenance part, (a) shows sectional drawing in the II-II position of FIG.6 (b), (b) shows sectional drawing in the II position of FIG.6 (b). . It is a figure for demonstrating a support means, (a) shows a front view, (b) shows a side view. It is a figure for demonstrating a support means, and shows sectional drawing in the XX position of Fig.8 (a). It is a figure for demonstrating the cap of an operation means, (a) shows a perspective view, (b) shows sectional drawing in the XI-XI position of (a). It is a figure for demonstrating the procedure which fixes the attachment tool of a handrail to a wall material, and demonstrates the state by which a latching means is inserted in the back side of a wall material in the state which attached the cap of the operation means and the operation string It is sectional drawing. It is a figure for demonstrating the procedure which fixes the attachment of a handrail to a wall material, and is sectional drawing explaining the state which attaches a support means. It is a figure for demonstrating the procedure which fixes the attachment tool of a handrail to a wall material, and is sectional drawing explaining the state by which the attachment tool was fixed to the predetermined position. It is sectional drawing explaining the state to which the excessive load was added to the handrail fixed to the wall material, the latching means deform | transformed, and the support means shifted position. It is a figure for demonstrating a tensile load test. It is a figure for demonstrating a repeated load test, (a) shows the state by which the weight was mounted on the testing machine, (b) shows the state by which the testing machine operated and the weight fell.

Explanation of symbols

3 Locking means 31 Leaf spring (plate material)
4 Supporting means 100 Handrail attachment (wall fixture)
H Handrail body (supported body)
W1 Wall material B Back of wall material

Claims (1)

A locking means including a plate material that has a bowed shape and presses the back surface of the wall material;
Provided on the front side of the wall material in a state of being connected to the locking means, and supporting means for supporting the supported body,
A mounting method of a wall fixture that is fixed by sandwiching the wall material in the thickness direction by the locking means and the support means ,
Mounting the operating means for operating the locking means from the front side of the wall material in a state where the locking means is on the back side of the wall material;
A step of inserting the locking means into the back side of the wall material in a state where the operation means is mounted from the hole formed in the wall material;
Connecting the support means to the locking means located on the back side of the wall material through the hole of the wall material,
When connecting the support means to the locking means, the operation means is pushed out by the support means and dropped to the back side of the wall material.

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