JP5432696B2 - Stair reform structure - Google Patents

Description

  The present invention relates to a staircase reforming structure, and more particularly, to a staircase reforming structure using a nose decorative member, a treadboard decorative member, and a kick board decorative member.

  When renovating an existing staircase that has become obsolete, it takes a lot of time and money to break it down and replace it with a new staircase, so various methods for renovating the existing staircase by covering it with a decorative material have been proposed. (For example, refer to Patent Document 1 and Patent Document 2). In the renovation method and renovation staircase described in Patent Document 1 and Patent Document 2, a decorative member that covers a stair nosing part of an existing staircase, a decorative member that covers a tread board, and a decorative member that covers a kick board, These decorative members are joined and fixed to an existing staircase through an adhesive or the like, and the staircase is reformed.

JP 2001-159219 A JP 2005-97947 A

  On the other hand, the existing tread board and the existing kick board which constitute the existing stairs that have become old have been bent or worn by long-term use, and are often deformed from those at the time of design. For this reason, especially when performing renovation of the staircase between the staircase side plates provided on both sides, it is difficult to absorb gaps and errors due to deformation, so a nose decorative member, a treadboard decorative member, and a kickboard decorative member However, it is designed to be reworked and attached to fit the shape after deformation while finely adjusting at the construction site, but by installing a part that can absorb such deformation, installation work of each decorative member Can be performed more efficiently.

  In addition, in the staircase remodeling method and the renovation staircase described in Patent Document 1 and Patent Document 2, with respect to the tread plate decorative member, in view of the appearance and the like, an existing adhesive is used without driving a fixing member such as a fixing screw. Although it will be fixed by sticking to the upper surface of the tread board, a considerable amount of load is applied to the tread board decorative member when the person moves up and down, so the adhesive is dried and the tread board decorative member is already present Until it is firmly fixed to the tread board, it is impossible to ascend or descend the stairs.

  The present invention can efficiently attach the nose decorative member, the tread plate decorative member, and the kicked plate decorative member to the stairs sandwiched by the stairs side plates on both sides while finely adjusting at the construction site, and impairs the appearance. It is an object of the present invention to provide a renovation structure for a staircase that can quickly fix a tread board decorative member to an existing tread board without worries.

  The present invention uses a stair nosing decorative member having a substantially L-shaped cross-sectional shape composed of a horizontal side portion and a vertical side portion, a step board decorative member having a flat plate shape, and a kick plate decorative member having a flat plate shape. A renovation structure of a portion of a staircase sandwiched between staircase side plates on both sides, wherein the nose decorative member is provided on an upper surface of the lateral side portion arranged along an upper surface of a nose portion of an existing footboard. A first concave groove extending in the longitudinal direction is formed, and a notch extending in the longitudinal direction of the nose decorative member is formed in the distal end surface of the lateral side portion, The end surface on the nose side of the member is formed with a corner top surface notch that is wider than the depth of penetration of the notch notch, so that the indentation convex portion that is inserted and disposed in the notch notch, Extending in the longitudinal direction of the tread board decorative member A spacer base material having a thickness corresponding to a protruding length of the nose portion from the existing kick plate is attached along a lower end portion of the existing kick plate, and the kick plate decorative member is attached The upper end portion and the lower end portion are fixed to the nose portion and the spacer base material in close contact with each other, and the back surface of the vertical side portion is closely attached to the surface of the upper end portion of the fixed kick plate decorative member. In addition, the nose decorative member is fixed by driving a fixing member into the existing footboard from the first concave groove in a state where the lower surface of the horizontal side portion is in close contact with the upper surface of the nose portion, and the fixed In the state where the insertion convex portion is inserted and arranged in the insertion notch of the nosing decorative member, and the lower surface is in close contact with the upper surface of the existing stepping plate, the stepping plate decorative member is connected to the distal end surface of the lateral side portion. The corner top surface notch held between The above-mentioned object is achieved by providing a staircase reforming structure in which a fixing member is fixed to the existing tread plate by driving it from the second concave groove and the existing staircase is reformed step by step from the bottom to the top. Achieved.

  In the staircase reforming structure of the present invention, it is preferable that the kick board decorative member, the nose decorative member, and the tread decorative member are fixed together using an adhesive.

  In the staircase reforming structure of the present invention, it is preferable that a resin joint is attached to the first and second concave grooves.

  According to the renovation structure of the staircase of the present invention, the nose decorative member, the treadboard decorative member, and the kickboard decorative member can be efficiently attached to the stairs sandwiched by the stairs side plates on both sides while finely adjusting at the construction site. In addition, the tread plate decorative member can be quickly fixed to the existing tread plate without deteriorating the appearance.

It is sectional drawing explaining the structure of the renovation structure of the staircase which concerns on preferable one Embodiment of this invention. FIG. 3 is a schematic perspective view of a staircase renovated by a staircase reforming structure according to a preferred embodiment of the present invention. It is a schematic perspective view explaining the situation which attaches a kick board decorative member. It is a schematic perspective view explaining the situation which attaches a nose decorative member. It is a schematic perspective view explaining the situation which attaches a nose decorative member. It is a schematic perspective view explaining the situation which attaches a tread board decorative member. It is a schematic perspective view explaining the situation which attaches a tread board decorative member. (A), (b) is a fragmentary sectional view explaining the fixed state of a nose decorative member and a tread board decorative member. It is a schematic perspective view explaining the situation where a resin joint is attached to the first concave groove and the second concave groove.

  A staircase reforming structure 10 according to a preferred embodiment of the present invention shown in FIG. 1 includes a staircase side girder member 30 as a pair of staircase side plates on both sides as shown in FIG. Used when performing renovation using the nose decorative member 11, the step plate decorative member 12, and the kick plate decorative member 13 for the stairs on which both ends of each existing footboard 31 (see FIG. 1) are supported. It is. That is, the existing stair side member 30, the existing tread plate 31, and the existing kick plate 32 have been bent or worn due to long-term use, and have been deformed from those at the time of design. Since the staircase of the portion sandwiched by the staircase-side girder member 30 is easily affected by such deformation, it is difficult to attach each of the decorative members 11, 12, 13 with high accuracy so as not to cause a gap or the like. It has become. In the reform structure 10 of the present embodiment, fine adjustment of the nose decorative member 11, the step board decorative member 12, and the kick plate decorative member 13 is performed at the construction site so that a gap or the like does not occur due to the deformation of these existing step members. It is employed to make it possible to reform the staircase with high accuracy and efficiency while performing the above and to ascend and descend the staircase quickly during and after the remodeling.

  As shown in FIG. 1, the staircase reforming structure 10 according to the present embodiment has a nose decorative member 11 having a substantially L-shaped cross section composed of a lateral side portion 14 and a longitudinal side portion 15, and a flat plate shape. A structure for reforming the staircase of a portion sandwiched between staircase side girder members (staircase side plates) 30 on both sides using a treadboard decorative member 12 and a kick plate decorative member 13 having a flat plate shape, The member 11 is formed with a first groove 16 extending in the longitudinal direction of the nose decorative member 11 on the upper surface of the lateral side portion 14 disposed along the upper surface of the nosing portion 31 a of the existing tread plate 31. A scissor notch 17 extending in the longitudinal direction of the nosing decorative member 11 is formed on the distal end surface of the lateral side portion 14, and the scissor notching 17 is formed on the end surface of the stepping plate decorative member 12 on the nose side. A wider corner than the penetration depth By top notch 18 is formed, swallowed protrusion 19 which is inserted in the can swallow notch 17 is provided to extend in the longitudinal direction of the tread plate decorative member 12.

  Further, the staircase reforming structure 10 of the present embodiment is configured such that the spacer base material 20 having a thickness corresponding to the protruding length T of the nose 31a of the existing step board 31 from the existing kick board 32 is used as the existing kick board 32. The kick plate decorative member 13 is fixed in a state where the upper end portion and the back surface of the lower end portion are in close contact with the nose portion 31a and the spacer base material 20, and is fixed along the lower end portion of the surface of the plate. While the back surface of the vertical side portion 15 is in close contact with the surface of the upper end portion of the decorative member 13, the nose decorative member 11 is placed in the first concave groove 16 in a state where the lower surface of the horizontal side portion 14 is in close contact with the upper surface of the nose portion 31a. Then, a fixing screw 21 as a fixing member is fixed by driving into the existing tread plate 31, and the ridge protrusion 19 is inserted into the ridge notch 17 of the fixed nose decorative member 11 and the lower surface of the existing tread plate 31 is fixed. Close contact with the top surface In this state, the fixing member 21 as a fixing member is fixed to the existing stepping plate 31 from the second concave groove 22 formed by the corner upper surface notch 18 held between the front end surface of the lateral side portion 14. It is fixed by driving in, and the existing stairs are reformed step by step from the bottom to the top.

  In the present embodiment, the reforming structure 10 includes the existing kick plates 32 in each step in the order of the kick plate decorative member 13, the nose decorative member 11, and the tread decorative member 12, one by one from the bottom to the top of the stairs. Alternatively, these decorative members 11, 12, and 13 are attached and fixed over the existing tread board 31.

  In this embodiment, prior to the work of attaching the decorative members 11, 12, and 13 to cover the existing kick plate 32 and the existing tread plate 31 of each step, the stair side girder members 30 on both sides are covered from the inside for remodeling. It is preferable to attach the decorative side plate material 33. That is, for example, by using a lauan plywood for mold making, mold making that matches the concavo-convex shape of the existing staircase, processing and adjusting the shape of the decorative side plate material 33, the processed decorative side plate material 33 using an adhesive In addition to being fixed to the staircase members 30 on both sides from the inside, the finish nail or the like is fixed by being driven toward the staircase members 30 at the portions hidden by the decorative members 13, 11, 12. 33 is attached so as to cover the stair side beam member 30 from the inside.

  And in each step of the existing stairs, in order to cover the existing kick plate 32 and attach the kick plate decorative member 13, as shown in FIG. 3, from the existing kick plate 32 of the step nose 31 a of the existing step plate 31. The nose protrusion dimension (refer to FIG. 1), which is the protrusion length T of the spacer, is measured, and the spacer base material 20 made of, for example, plywood or wood is processed so as to have the same thickness as the actually measured nose protrusion dimension T. The inner dimension B (see FIG. 4) of the staircase side beam member 30 is actually measured, and the spacer base material 20 is cut so as to have the same length as the actually measured inner dimension B. After that, the processed spacer base material 20 is supported by the floor plate decorative member 12 (see FIG. 1) that covers the floor member 23 or the existing step board 31 in the lower stage, and is disposed along the lower end portion of the existing kick plate 32. For example, it is fixed to the surface of the existing kick plate 32 through an adhesive and a fixing screw 21.

  Moreover, while measuring the kicking dimension H of the existing footboard 31 from the floorboard decorative member 12 which covers the floor member 23 or the lower existing footboard 31, the inner dimension B of the stairs side girder members 30 on both sides is actually measured, and these actual values are measured. Based on the above, the kick plate decorative member 13 is cut into a predetermined shape. Here, as the kick board decorative member 13, for example, a veneer bonded plywood can be used.

  Further, the processed kick plate decorative member 13 is fixed using, for example, an adhesive, in a state where the back surfaces of the upper end portion and the lower end portion are in close contact with the nose portion 31a and the spacer base material 20, and the nose portion 31a and the spacer Fixing is performed by driving a finish nail 24 toward the base material 20.

  In addition, when the protruding dimension T of the nose of the existing staircase is zero, a nose base material having a thickness of, for example, about 12 mm is attached to the tip of the existing tread board 31, and the nose portion 31a made of this nose base material has the same thickness. By fixing the upper end portion and the lower end portion to the spacer base material 20 having a length of about 12 mm, the kick plate decorative member 13 can be attached.

  At each step of the existing staircase, in order to attach the nose decorative member 11 so as to cover the nose portion 31a of the existing tread board 31, as shown in FIG. The nosing decorative member 11 is cut so as to have the same length as the inner dimension B. Here, as the nosing decorative member 11, for example, a nosing decorative member that is processed and formed to have a substantially L-shaped cross-sectional shape in a factory or the like in advance using a veneer bonded plywood can be used. It is preferable that the stair nosing decorative member 11 is repeatedly cut while being temporarily placed on the stair nose 31a and finely adjusted so that the shape can follow the deformation of the existing staircase.

  Further, the cut nosing decorative member 11 is coated with an adhesive evenly on the entire back surface thereof, and the back surface of the vertical side portion 15 is brought into close contact with the surface of the upper end portion of the fixed kick plate decorative member 13. In the state where the lower surface of the lateral side portion 14 is in close contact with the upper surface of the nosing portion 31a, the nosing portion 31a of the existing footboard 31 is covered and fixed. Furthermore, as shown in FIG. 5, a rectangular shape having a width of about 8 mm and a depth of about 5 mm, for example, is provided on the upper surface of the lateral side portion 14 of the nose decorative member 11 so as to extend in the longitudinal direction of the nose decorative member 11. The nosing decorative member 11 is fixed by driving a plurality of fixing screws 21 of, for example, 3.3 mm × 40 mm at predetermined intervals from the first concave groove 16 having a cross-sectional shape toward the existing tread plate 31.

  Here, in order to prevent the nosing decorative member 11 from cracking when the fixed screw 21 is driven, a lead hole (a pilot hole) is formed at a predetermined position of the first concave groove 16 prior to driving the screw. It is preferable to keep it. Further, it is preferable that a thin plate spacer 25 having a vertical width slightly shorter than the vertical width of the vertical side portion 15, for example, a thickness of about 3 mm, is attached to the back surface of the vertical side portion 15 of the nosing decorative member 11. (See FIG. 1). When the nose decorative member 11 is fixed so as to cover the nose portion 31a by attaching a thin plate spacer 25 having a length slightly shorter than the vertical width of the vertical side portion 15 to the back surface of the vertical side portion 15, Since the thin plate spacer 25 is interposed between the vertical side portion 15 and the kick plate decorative member 13, the lower end surface of the vertical side portion 15 is slightly between the plate decorative member 13 and the thickness of the thin plate spacer 25. Thus, it becomes possible to make the gaps evenly visible on the lower end surface of the vertical side portion 15 by visual inspection.

  In order to attach the tread plate decorative member 12 so as to cover the existing tread plate 31 in each step of the existing staircase, as shown in FIG. 6, while measuring the internal dimension B of the stair side girder member 30 on both sides, the nose decorative member 11 The depth dimension D from the front end of the horizontal side portion 14 to the surface of the upper existing kick plate 32 is measured. Based on these actually measured values, the tread board decorative member 12 is cut so as to have a predetermined rectangular shape in consideration of a clearance of about 2 to 3 mm in the depth dimension D, for example. Here, as the tread board decorative member 12, for example, a veneer bonded plywood can be used. The plate decorative member 12 is preferably finely adjusted so that the cut shape can follow the deformation of the existing staircase, etc. by repeatedly cutting it while temporarily placing it on the upper surface of the existing tread plate 31.

  After that, the cut tread plate decorative member 12 is coated with an adhesive evenly on the entire back surface thereof, for example, between the tip of the lateral side portion 14 of the nose decorative member 11 and the existing kick plate 32 on the upper stage. At the same time, the dropped tread board decorative member 12 is drawn close to the fixed nose decorative member 11 side, and as shown in FIGS. In the state where the ridge protrusion 19 is inserted and disposed, the existing tread plate 31 is covered and fixed. Also, a second rectangular cross-sectional shape having a width of about 8 mm and a depth of about 5 mm, for example, is held between the front end surface of the lateral side portion 14 by the corner upper surface notch 18 on the nose side of the step board decorative member 12. The tread plate decorative member 12 is fixed to the existing tread plate 31 by driving a plurality of, for example, 3.3 mm × 40 mm fixing screws 21 at predetermined intervals from the concave groove 22 toward the existing tread plate 31.

  As a result, as shown in FIG. 8B, the notch 17 and the ridge protrusion 19 are engaged with each other at the joint between the nosing decorative member 11 and the tread plate decorative member 12, and the first concave When the fixing screw 21 is driven into the groove 16 and the second concave groove 22, the end portion of the nose decorative member 11 and the end portion of the tread plate decorative member 12 are pressed against each other, and these are firmly and integrally joined. Become.

  Furthermore, in this embodiment, for example, a 3.3 mm × 40 mm fixing screw 21 is provided at a predetermined interval along the end of the stepping plate decorative member 12 on the side of the upper existing kicking plate 32 toward the existing stepping plate 31. By plunging in a plurality, the end portion on the side of the existing kick board 32 in the upper stage of the tread board decorative member 12 is also fixed to the existing tread board 31.

  Here, in order to prevent the tread plate decorative member 12 from being cracked when the fixed screw 21 is driven, prior to driving the screw, the second recessed groove 22 or the existing kick plate 32 side end portion is in a predetermined position. It is preferable to form a lead hole (a pilot hole). Further, by drawing the dropped tread board decorative member 12 toward the nose decorative member 11 side, a gap is generated between the lower end surface of the existing kick board 32 in the upper stage and the end surface of the tread decorative member 12. However (see FIG. 1), the gap is covered by the spacer base material 20 and the kick plate decorative member 13 when the existing step board 31 and the existing kick plate 32 in the upper stage are reformed. The fixing screw 21 driven into the tread board decorative member 12 along the end portion on the existing upper kick plate 32 side of the upper stage is also covered by the upper spacer base material 20 and the kick board decorative member 13.

  The staircase reforming structure 10 of the present embodiment is formed so as to cover the existing staircase by sequentially performing the above-described steps one by one from the lower stage to the upper stage of the existing staircase. In addition, at the joint between the upper step and the upper floor, which is the uppermost step, for example, an upper floor ridge or a new floor member on the upper floor is applied to the front end surface of the side portion 14 of the nose decorative member 11. By performing the joining, a reforming structure is performed.

  Further, in the present embodiment, the nosing decorative member 11 and the first concave groove 16 and the second concave groove 22 formed by the stepping decorative member 12 fixed to the existing stepping plate 31 by the fixing screw 21 are fitted into these, For example, a resin joint 26 made of an olefin resin or the like is mounted and fixed. Since the resin joints 26 are attached to the first and second concave grooves 16 and 22, the fixing screw 21 can be covered and the resin joint 26 functions as an anti-slip when the stairs are raised and lowered. Will do.

  According to the staircase reforming structure 10 of the present embodiment having the above-described configuration, the staircase side plates 30 on both sides are finely adjusted at the construction site while the nose decorative member 11, the treadboard decorative member 12, and the kicked plate decorative member 13 are finely adjusted at the construction site. The step board decorative member 12 can be quickly fixed to the existing step board 31 without impairing the appearance.

  That is, according to the present embodiment, in particular, the nose decorative member 11 and the tread plate decorative member 12 are independent members, and the inner dimension B of the staircase side girder member 30 on both sides and the depth to the surface of the upper existing kick plate 32 are shown. Cutting is performed based on the actual measurement value of the dimension D, and these are repeatedly cut while temporarily placed on the nose 31a and the existing tread plate 31 so that the shape can easily follow the deformation of the existing staircase. It is possible to adjust the insertion depth of the ridge protrusion 19 on the end surface of the tread plate decorative member 12 into the ridge notch 17 formed on the distal end surface of the lateral side portion 14 of the nose decorative member 11. By adjusting, the gaps and errors due to the deformation of the existing staircase and the like are absorbed, and the existing part of the staircase decorative member 11, the treadboard decorative member 12 and the kick plate decorative member 13 are sandwiched between the staircase side plates 30 on both sides. It is possible Yuku and efficiently with take the step.

  In addition, according to the present embodiment, the nosing decorative member 11 and the tread plate decorative member 12 are fixed by driving the fixing screw 21 in the first concave groove 16 and the second concave groove 22. It is possible to prevent the appearance from being damaged without being conspicuous, and the nose decorative member 11 and the step board decorative member 12 are fixed by the fixing screw 21, and thereby the nose decorative member 11 and the step board decorative member 12 are strengthened. It is possible to fix and quickly go up and down the stairs without waiting for the adhesive to dry.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it is not always necessary to attach resin joints to the first and second concave grooves, and the pair of stair side plates on both sides of the staircase is a staircase side plate that is attached to cover the side walls of the staircase in addition to the staircase side girder member. It may be.

DESCRIPTION OF SYMBOLS 10 Stairs reform structure 11 Nose decorative member 12 Tread board decorative member 13 Kick board decorative member 14 Horizontal side part 15 Vertical side part 16 1st ditch | groove 17 Recessed notch 18 Corner | angular part upper surface notch 19 Recessed convex part 20 Spacer Base material 21 Fixing screw (fixing member)
22 Second concave groove 24 Fine shawl 26 Resin joint 30 Stair side girder member (stair side plate)
31 Existing footboard 31a Nose 32 Existing kick plate B Inner dimensions of stair side girder members on both sides D Depth dimension from the staircase decorative member to the surface of the upper existing kick plate H Height of existing footboard L Dimension of nose ( Projection length of the nose from the existing riser plate)

Claims (3)

Stair side plates on both sides using a nose decorative member having a substantially L-shaped cross-section composed of a horizontal side portion and a vertical side portion, a tread plate decorative member having a flat plate shape, and a kick plate decorative member having a flat plate shape It is a renovation structure of the stairs in the part sandwiched between
In the nosing decorative member, a first concave groove extending in the longitudinal direction of the nosing decorative member is formed on the upper surface of the lateral side portion arranged along the upper surface of the nosing portion of the existing footboard, A scissor notch extending in the longitudinal direction of the nosing decorative member is formed on the front end surface of the lateral side portion,
An end surface on the nose side of the step board decorative member is formed with a corner upper surface notch wider than the depth of penetration of the notch notch, so that the notch protrusion inserted into the notch notch is disposed. Part is provided to extend in the longitudinal direction of the tread plate decorative member,
A spacer base material having a thickness corresponding to a protruding length of the nosing portion from the existing kick plate is attached along a lower end portion of the existing kick plate, and the kick plate decorative member is attached to the nosing portion. And fixed in a state where the back of the upper end portion and the lower end portion are in close contact with the spacer base material,
The nose decorative member is mounted in a state where the back surface of the vertical side portion is in close contact with the surface of the upper end portion of the fixed kick plate decorative member and the lower surface of the horizontal side portion is in close contact with the upper surface of the nose portion. , By fixing a fixed member into the existing footboard from the first concave groove,
In the state where the ridge protrusion is inserted and arranged in the ridge notch of the fixed nosing decorative member, and the lower surface is in close contact with the upper surface of the existing step plate, Fixing by fixing a fixing member into the existing tread plate from the second groove formed by the notch on the upper surface of the corner held between the front end surface, and reforming the existing stair step by step from the bottom to the top Sequential staircase renovation structure. The staircase reforming structure according to claim 1, wherein the kick board decorative member, the nose decorative member, and the tread decorative member are fixed together with an adhesive. The staircase reforming structure according to claim 1 or 2, wherein a resin joint is attached to the first concave groove and the second concave groove.

Images