JP2007107335A - Handrail installation structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the rattling of bracket to base material and prevent to come off the bracket from the base material in a handrail installation structure. <P>SOLUTION: While a bracket 3 presses a base 2 against a wall surface W, it is fixed on the wall surface W via the base 2. Therefore there is no clearance between the leg 32 of the bracket 3 and the base 2, and the leg 32 comes into a tight contact with the base 2 to prevent the play of the bracket 3. If any unreasonable force is applied to the bracket 3 to press it against the base 2, since the back of the protrusion 22 of the base 2 is on a level with the backs of the upper and lower guides 21 so that the base 2 can come into a tight contact with the wall surface W, allowing the whole back surface of the base to tightly contact the wall surface. The handle 31 of the bracket 3 contacts the protrusion 22 having a hollow 27 therein, and this protrusion 22 absorbs unreasonable forces and prevents the base 2 from bending. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for attaching handrails to wall surfaces such as stairs, hallways, toilets, bathrooms, and entrances.

  When attaching a handrail to the wall surface of a building, for example, as described in Patent Document 1, a pair of upper and lower rail grooves formed on the base material by screwing a long base material having a convex portion at the center to the wall surface Fit the pair of upper and lower legs of the bracket into the bracket. Accordingly, the bracket is held in a state of being engaged with the base material. Then, fixing the handrail to the head of the bracket completes the attachment of the handrail.

JP 2001-81929 A

  However, in the handrail mounting structure according to Patent Document 1, the base material is screwed to the wall surface. However, since the back surface opposite to the convex portion of the base material is recessed, the back surface of the base material has no wall surface. A base part is easily warped, and a close contact part and a part having a slight gap are formed. At this time, if a force is applied to the handrail, the base material is twisted. Then, since the bracket is structured to be engaged with the base material, a gap is formed between the bracket and the rail groove, and the bracket rattles. As a result, when the handrail is gripped, the bracket may be detached from the base material.

  The present invention has been made in view of the above technical problem, and an object of the present invention is to provide a handrail attachment structure that eliminates rattling of the bracket with respect to the base material and prevents the bracket from being detached from the base material.

  In order to achieve the above object, a handrail attachment structure according to the present invention comprises a base material attached to a wall surface, and a handrail holding bracket that is fitted into the base material from the front surface and attached thereto, and the base material A guide part protrudes from the upper side edge and the lower side edge of the base member, a convex part protrudes from the center of the base material, and a pair of upper and lower rail grooves are formed by the upper and lower guide parts and the convex part. The base material is substantially flush with the back surface on the opposite side of the upper and lower guide portions so that the back surface on the opposite side to the convex portion of the base material is in contact with the wall surface, and a hollow portion is formed inside the convex portion, The bracket includes a holding portion that holds a handrail, and a pair of upper and lower legs that protrude from the holding portion toward the base material and engage with the rail groove, and the bracket includes the base material Slidable against and before At the bracket fixing position, screws are passed through the upper and lower legs and the base material and screwed into the wall surface, so that the upper and lower legs contact the surface of the rail groove, and the bracket and the base material Both are fixed to the wall surface.

  In the handrail mounting structure, the cross-sectional shape of the hollow portion of the convex portion is substantially rectangular.

  In the handrail mounting structure described above, the height of the hollow portion of the convex portion is greater than the length in the direction perpendicular to the wall surface.

  Furthermore, in the mounting structure of the handrail, a protrusion for attaching a cover that covers the rail groove is formed on each of the guide part and the convex part facing each other, and the interval between the upper and lower protrusions is The length of the rail groove is smaller than the length of the rail groove and larger than the length of the leg portion in the height direction, and the leg portion is lowered by its own weight when placed in the rail groove. Fits into the rail groove.

  Furthermore, in the attachment structure of the handrail, when the cover is attached to the protrusion, the surface of the cover is substantially flush with the surfaces of both the guide portion and the convex portion.

  According to the present invention, the bracket is fixed to the wall surface via the base material while the bracket presses the base material against the wall surface. Therefore, no gap is formed between the leg portion of the bracket and the base material, and the leg portion of the bracket is in close contact with the surface of the base material, so that rattling of the bracket can be prevented. Here, even if an excessive force is applied to the bracket, and the bracket is pressed against the base material, the back surface on the opposite side of the upper and lower guide parts so that the back surface on the opposite side to the convex portion of the base material contacts the wall surface. Since the entire back surface of the base material is in close contact with the wall surface and the holding portion of the bracket comes into contact with the convex portion having a hollow portion, the convex portion absorbs this force and the base material Prevents warping.

  In particular, since the cross-sectional shape of the hollow portion of the convex portion is substantially rectangular, or the height of the hollow portion of the convex portion is larger than the length in the direction perpendicular to the wall surface, the hollow portion is easily deformed. The applied force is dispersed, and the deformation of the entire base material can be prevented.

  Also, since the distance between the protrusions is greater than the length of the legs in the height direction, when the bracket is fitted into the base material, the legs do not get caught in the protrusions, and the legs can be easily placed in the rail groove. Can do. Moreover, since the length of the rail groove in the height direction is larger than the length of the leg part, after the leg part fits in the rail groove, the leg part falls by its own weight, and the leg part is easily fitted into the rail groove. be able to. Therefore, the mounting work of the bracket becomes easy.

  Furthermore, in the base material, a cover is attached to a place where the bracket is not attached, but the surface of the cover and the surface of the guide part and the convex part are almost flush with each other. Is obtained.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  Referring to FIGS. 1 and 2, a handrail 1 mounting structure according to the present embodiment includes a base material 2 attached to a wall surface W, and a handrail 1 fitted and fitted from the front surface of the base material 2. And holding bracket 3.

  The handrail 1 is a long wooden rod member that is attached to the wall surface W horizontally.

  The base material 2 is an aluminum extrusion-molded product, and has a predetermined length along the longitudinal direction of the handrail 1. End caps 4 are fitted into the left and right free ends of the base material 2, respectively.

  With reference to FIGS. 3-6, the guide part 21 is formed in the upper side edge and lower side edge of the base material 2, respectively. On the other hand, a convex portion 22 projects from the center of the base material 2. A pair of upper and lower rail grooves 23 is formed by the upper and lower guide portions 21 and the convex portions 22.

  As shown in FIGS. 3 and 5, projections 24 for attaching the cover 5 that covers the upper and lower rail grooves 23 are formed on the opposing surfaces of the guide portions 21 and the convex portions 22, respectively. V-shaped engagement grooves 25 are formed at the tips of the upper and lower protrusions 24, respectively. As shown in FIG. 6, a V-shaped screwing line 26 is recessed in the center of the guide surface of each rail groove 23.

  7 and 8, the cover 5 is made of a material that can be cut with a cutter knife or scissors. The cover 5 has a flat cover body 51 and projects from the cover body 51 toward the base member 2. It is provided with a pair of upper and lower engaging legs 52 whose front end corners engage with the engaging groove 25 of the protrusion 24. The cover body 51 and the engaging legs 52 are integrally formed. The length L1 in the direction perpendicular to the wall surface W of the cover 5 shown in FIG. Both are set to be flush with each other.

  Referring to FIGS. 25 (A) to 25 (D), the back surface of the base material 2 opposite to the convex portion 22 has upper and lower guide portions of the base material 2 such that the back surface contacts the wall surface W. 21 is flush with the back surface on the opposite side.

  As shown in FIGS. 3 and 5, a hollow portion 27 is formed inside the convex portion 22. The hollow portion 27 of the convex portion 22 is provided so as to penetrate along the longitudinal direction of the base material 2. It has been. As shown in FIG. 5, the cross-sectional shape of the convex portion 22 is substantially rectangular, and its height H is larger than the length L <b> 2 in the direction perpendicular to the wall surface W.

  With reference to FIGS. 9 to 15, the bracket 3 is a wall receiving bracket for retrofitting, and is formed by cutting an extruded material made of aluminum. The bracket 3 includes a holding portion 31 that holds the handrail 1 and a pair of upper and lower leg portions that protrude from the left and right sides of the base portion of the holding portion 31 toward the base material 2 and engage with the rail grooves 23 of the base material 2. 32.

  As shown in FIGS. 9, 12, and 13, a concave arc-shaped head 33 that receives the handrail 1 is attached to the tip of the holding portion 31. Screw insertion holes 34 are formed in the left and right ends of the head 33, respectively.

  The left and right end portions of each leg portion 32 are bent in parallel to the rail grooves 23 as shown in FIGS. Screw insertion holes 35 are formed in the left and right free ends of the legs 32, respectively.

  The bracket 3 is slidable with respect to the base material 2, and as shown in FIGS. 25A to 25D, the mounting screw 6 is attached to the leg portion 32 of the bracket 3 and the base material 2 at the fixed position. And the upper and lower leg portions 32 of the bracket 3 come into contact with the surface of the rail groove 23 of the base material 2 so that both the bracket 3 and the base material 2 are fixed to the wall surface.

  With reference to FIGS. 5 and 12, the interval S between the upper and lower protrusions 24 of the base member 2 is smaller than the length L3 of the rail groove 23 in the height direction, and the leg portions of the bracket 3 are used. It is set larger than the length L4 of 32 in the height direction.

  Referring to FIGS. 16 to 23, the end cap 4 is cantilevered by a cap body 41 having an opening 41 </ b> A toward the base material 2 and the back wall of the opening 41 </ b> A of the cap body 41, The cap body 41 and the upper and lower fitting legs 42 define a fitting space for the base material 2.

  In order to increase the fitting property when the end cap 4 is fitted into the base material 2 as shown in FIG. 19 on the upper side edge and the lower side edge of the inner wall of the opening 41A of the cap body 41, A concave groove 43 that fits into the shoulder portion of the guide portion 21 of the base material 2 is formed.

  As shown in FIGS. 16, 17, and 22, a screw insertion hole 44 is formed at the free end of each fitting leg 42.

  Here, the attachment procedure of the handrail 1 will be described.

  First, the base material 2 is attached to the wall surface W. Specifically, the base material 2 is firmly fixed on the screwing line 26 of the base material 2 with a mounting screw (not shown).

  Next, the bracket 3 is attached to the base material 2. Specifically, first, the interval between the brackets 3 is determined. Then, after the bracket 3 is fitted into the upper and lower rail grooves 23 of the base member 2 from the front and lower legs 32, the bracket 3 is lowered, and the upper and lower leg portions 32 of the bracket 3 are protruded from the base member 2. 24 (see FIGS. 24A, 25A, and 25B). Further, the mounting screw 6 is passed through the screw insertion holes 35 of the upper and lower legs 32 of the bracket 3, and the bracket 3 is firmly attached to the base material 2 with the mounting screw 6 on the screwing line 26 of the base material 2 ( (See FIGS. 24B and 25C).

  Subsequently, the cover 5 and the end cap 4 are attached. Specifically, the end cap 4 is inserted into the left and right free ends of the base material 2, and a mounting screw (not shown) is inserted into the screw insertion hole 44 of the upper and lower fitting legs 42 of the end cap 4, and the end is secured with the mounting screw. Install the cap 4 securely. Then, the length of the cover 5 having the dimension between the bracket and the bracket and the length of the cover 5 having the dimension between the bracket and the end cap are determined, and cutting is performed with a cutter knife or scissors. Thereafter, between the bracket and the end cap, both the left and right ends of the cover 5 are inserted into the bracket 3 side and the end cap 4 side, and the cover 5 is fitted into the base material 2. On the other hand, between the brackets, the left and right ends of the cover 5 are inserted into the one bracket 3 side and the other bracket 3 side, and the cover 5 is fitted into the base member 2. The state where the cover 5 is attached in this way is shown in FIGS. 24 (C) and 25 (D).

  Finally, the handrail 1 is attached. Specifically, a pilot hole is made at a position where the handrail 1 is attached, and the handrail 1 is placed on the head 33 of the bracket 3. Then, the mounting screw 6 is passed through the screw insertion hole 34 of the head 33 of the bracket 3, and the bracket 3 is securely fastened to the handrail 1 with the mounting screw 6.

  According to the present embodiment, the following operations and effects are achieved.

  (1) The bracket 3 is fixed to the wall surface W through the base material 2 while the bracket 3 presses the base material 2 against the wall surface W. Therefore, there is no gap between the leg portion 32 of the bracket 3 and the base material 2, and the leg portion 32 of the bracket 3 is in close contact with the surface of the base material 2, so that the bracket 3 can be prevented from rattling. Here, even if an excessive force is applied to the bracket 3 and the bracket 3 is pressed against the base material 2, the back surface of the base material 2 opposite to the convex portion 22 is in contact with the wall surface W of the base material 2. Since the back surface on the opposite side of the upper and lower guide portions 21 is flush with the back surface, the entire back surface of the base material 2 is in close contact with the wall surface, and the holding portion 31 of the bracket 3 is in contact with the convex portion 22 having the hollow portion 27. By this, the convex part 22 absorbs this force, and the curvature of the base material 2 can be prevented.

  (2) Particularly, since the cross-sectional shape of the hollow portion 27 of the convex portion 22 is substantially rectangular and its height H is set to be larger than the length L2 in the direction perpendicular to the wall surface, the hollow portion 27 is deformed. The applied force is dispersed and deformation of the entire base material 2 can be prevented.

  (3) Since the spacing S between the protrusions 24 of the base material 2 is larger than the length L4 of the bracket 32 in the height direction, when the bracket 3 is fitted into the base material 2, the legs 32 are The leg portion 32 can be easily accommodated in the rail groove 23 of the base material 2 without being caught by the protruding portion 24. Moreover, since the length L3 of the rail groove 23 in the height direction is larger than the length L4 of the leg portion 32 of the bracket 3, after the leg portion 32 is accommodated in the rail groove 23, the leg portion 32 is The leg 32 can be easily fitted into the rail groove 23 by its own weight. Therefore, the attachment work of the bracket 3 becomes easy.

  (4) The cover 5 is attached to the base material 2 where the bracket 3 is not attached, but the surface of the cover 5 and the surfaces of the guide portion 21 and the convex portion 22 of the base material 2 are flush with each other. As a result, irregularities are not formed and a clean appearance is obtained.

  The present invention is not limited to the above embodiment. In the above embodiment, an example in which the present invention is applied to a handrail mounting structure using a retrofitting wall receiving bracket has been described. However, the present invention is applied to a handrail mounting using a rear receiving direct receiving bracket 3 shown in FIG. Even when applied to a structure, the object of the present invention can be sufficiently achieved. It goes without saying that various design changes and modifications can be made within the scope of the claims attached to the present specification.

  The present invention eliminates rattling of the bracket with respect to the base material and prevents the bracket from being detached from the base material. For example, as a structure for attaching handrails to walls such as stairs, hallways, toilets, bathrooms, and entrances Useful.

It is a perspective view which shows the attachment structure of the handrail which concerns on embodiment of this invention. It is a disassembled perspective view of the attachment structure of the handrail. It is a perspective view of the base material applied to the attachment structure of the handrail. It is a front view of the base material. It is sectional drawing which follows the AA line of FIG. It is a figure which expands and shows the X section of FIG. It is a perspective view of the cover applied to the attachment structure of the handrail. It is sectional drawing of the cover. It is a perspective view of the wall receiving bracket for retrofit applied to the attachment structure of the handrail. It is a front view of the bracket. It is sectional drawing which follows the BB line of FIG. It is a side view of the bracket. It is a top view of the bracket. It is a bottom view of the bracket. It is a rear view of the bracket. It is a perspective view of the end cap applied to the attachment structure of the handrail. It is a front view of the end cap. It is sectional drawing which follows the CC line of FIG. It is a figure which expands and shows the Y section of FIG. It is a top view of the end cap. It is a side view of the end cap. It is a rear view of the end cap. It is a side view which shows the state which inserted the end cap in the base material. It is a perspective view which shows the attachment procedure of a bracket and a cover. It is sectional drawing which shows the attachment procedure of a bracket and a cover. It is a perspective view of the direct attachment bracket for retrofit applied to the attachment structure of the handrail.

Explanation of symbols

W Wall surface 1 Handrail 2 Base material 21 Guide portion 22 Protruding portion 23 Rail groove 24 Projection portion 27 Hollow portion 3 Bracket 31 Holding portion 32 Leg portion 5 Cover 6 Screw

Claims (5)

A base material attached to the wall;
A handrail holding bracket that is fitted into the base material from the front, and
On the upper side edge and the lower side edge of the base material, respectively, a guide portion protrudes,
A convex portion is provided in the center of the base material,
A pair of upper and lower rail grooves are formed by the upper and lower guide portions and the convex portion,
The back surface on the opposite side to the convex portion of the base material is substantially flush with the back surface on the opposite side of the upper and lower guide portions, so that the back surface contacts the wall surface,
A hollow part is formed inside the convex part,
The bracket includes a holding portion for holding a handrail, and a pair of upper and lower legs protruding from the holding portion toward the base material and engaging with the rail groove,
The bracket is slidable with respect to the base material,
At the fixed position of the bracket, the upper and lower leg portions come into contact with the surface of the rail groove by screwing the screws through the upper and lower leg portions and the base material into the wall surface, so that the bracket and the base material Both of these are fixed to a wall surface. The handrail attachment structure according to claim 1, wherein a cross-sectional shape of the hollow portion of the convex portion is substantially rectangular. The handrail attachment structure according to claim 1, wherein the hollow portion of the convex portion has a height greater than a length in a direction perpendicular to the wall surface. Protrusions for attaching covers that cover the rail grooves are formed on the surfaces of the guide portion and the convex portion facing each other,
The interval between the upper and lower protrusions is smaller than the length of the rail groove in the height direction and larger than the length of the leg portion in the height direction,
The handrail attachment structure according to any one of claims 1 to 3, wherein when the leg portion is accommodated in the rail groove, the leg portion is lowered by its own weight and fitted into the rail groove. The handrail attachment structure according to claim 4, wherein when the cover is attached to the protrusion, the surface of the cover is substantially flush with the surfaces of both the guide part and the convex part. .

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