JP7740729B2 - Non-slip material for stairs - Google Patents
Non-slip material for stairsInfo
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- JP7740729B2 JP7740729B2 JP2023193756A JP2023193756A JP7740729B2 JP 7740729 B2 JP7740729 B2 JP 7740729B2 JP 2023193756 A JP2023193756 A JP 2023193756A JP 2023193756 A JP2023193756 A JP 2023193756A JP 7740729 B2 JP7740729 B2 JP 7740729B2
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Description
特許法第３０条第２項適用 １．令和５年１０月２７日～令和５年１１月１４日、別紙納入先リストに記載の納品先へ納品 ２．令和５年９月１日、自社２０２３年度カタログに掲載し公開Article 30, paragraph 2 of the Patent Act applies. 1. From October 27, 2023 to November 14, 2023, deliveries were made to the destinations listed in the attached delivery destination list. 2. On September 1, 2023, the product was published in the company's 2023 catalog.
本発明は、階段を構成する段板の先端に取り付けられる滑り防止用のノンスリップ材に関する。 The present invention relates to a non-slip material that is attached to the ends of the treads that make up a staircase to prevent slipping.
本発明に係るノンスリップ材は、段板の前端上方に位置するコーナー部に固定される略Ｌ字状の金属製のベース部材と、このベース部材を覆うように装着される略Ｌ字状の合成樹脂製のキャップ部材とを備えるが、上記構成を備えるノンスリップ材は、例えば特許文献１に公知である。特許文献１のベース部材（Ｌ型金具）は、段板の上に敷設されるじゅうたん等の敷物の上面に沿う水平部と、水平部の前端から下方に伸びる垂下部とからなる（特許文献１の第２図参照）。水平部には通孔が形成されており、この通孔を介して段板にねじ込まれた木ねじにより、ベース部材は敷物と共に段板に固定されている。水平部の後端の上面には、後方に向かう上凸部（掛合凸部）が形成され、垂下部の下端の前面には、下方開口を有する略Ｕ字状の下凸部（掛合凸部）が形成されている。キャップ部材（すべり止め部材）は、ベース部材の水平部の上面に沿うカバー壁と、ベース部材の垂下部の前面に沿う前縦壁とからなる。カバー壁の後端には、上凸部に係止する、前方に開口を有する鉤状の上凹部（係止部）が形成されている。前縦壁の下端には、後方に向かい、その後に上方に向かって屈曲されて、下凸部に係合する、後方に開口を有する鉤状の下凹部（係止部）が形成されている。下凹部の先端は上方に指向しており、この先端が下凸部の下方開口に係合するようになっている。換言すれば、キャップ部材の下凹部は、ベース部材の下凸部を覆うように下方側から回り込んで、当該下凸部に係合するようになっている。 The non-slip material of the present invention comprises a roughly L-shaped metal base member secured to the corner located above the front end of the step, and a roughly L-shaped synthetic resin cap member attached to cover the base member. A non-slip material with the above-described configuration is known, for example, from Patent Document 1. The base member (L-shaped metal fitting) in Patent Document 1 comprises a horizontal portion that fits over the top surface of a carpet or other covering placed on the step, and a hanging portion that extends downward from the front end of the horizontal portion (see Figure 2 of Patent Document 1). Through holes are formed in the horizontal portion, and the base member and the covering are secured to the step by wood screws threaded through these holes into the step. The upper surface of the rear end of the horizontal portion forms an upward convex portion (hooking convex portion) facing rearward, and the front surface of the lower end of the hanging portion forms a roughly U-shaped downward convex portion (hooking convex portion) with a downward opening. The cap member (non-slip member) comprises a cover wall that fits over the top surface of the horizontal portion of the base member, and a front vertical wall that fits over the front surface of the hanging portion of the base member. The rear end of the cover wall is formed with a hook-shaped upper recess (engagement portion) with an opening at the front that engages with the upper convex portion. The lower end of the front vertical wall is formed with a hook-shaped lower recess (engagement portion) that extends rearward, then bends upward, and engages with the lower convex portion. The tip of the lower recess faces upward, and this tip engages with the lower opening of the lower convex portion. In other words, the lower recess of the cap member wraps around from below to cover the lower convex portion of the base member, and engages with the lower convex portion.
ベース部材にキャップ部材を装着する際には、まず上凸部に上凹部を係合させたうえで、これら凹凸の係合部分を中心にしてキャップ部材を下方に変位させ、水平部の上面にカバー壁を沿わせるとともに、垂下部の前面に前縦壁を沿わせる。次いで、下凸部に下凹部を係合させる。このとき、下凸部を覆うように、下凹部を下方側から回り込ませて、当該下凹部の先端を下凸部の下方開口に進入させることで、ベース部材にキャップ部材を装着固定させることができる。 When attaching the cap member to the base member, first engage the upper concave portion with the upper convex portion, then displace the cap member downward around the engagement between these concave and convex portions, aligning the cover wall with the upper surface of the horizontal portion and the front vertical wall with the front surface of the hanging portion. Next, engage the lower concave portion with the lower convex portion. At this time, the lower concave portion is brought around from below to cover the lower convex portion, and the tip of the lower concave portion is inserted into the lower opening of the lower convex portion, thereby attaching and fixing the cap member to the base member.
上凹部と下凹部の形成箇所を除く、キャップ部材の長手方向の中間部は、軟質合成樹脂により形成されている。このため、下凹部を係合させる際には、中間部を伸長させることで、より容易に下凸部に下凹部を係合させることができる。また、下凹部の係合後は、中間部の復元力により下凹部が上方に引っ張られることで、より強固に下凸部に下凹部を係合させることができる。 The longitudinal middle portion of the cap member, excluding the areas where the upper and lower recesses are formed, is made of a soft synthetic resin. Therefore, when engaging the lower recess, stretching the middle portion makes it easier to engage the lower recess with the lower convex portion. Furthermore, after engaging the lower recess, the restoring force of the middle portion pulls the lower recess upward, allowing it to engage more firmly with the lower convex portion.
特許文献１のノンスリップ材では、キャップ部材のカバー壁が踏まれるなど、カバー壁に大きな外力が作用されると、カバー壁が前後に広がるように変形し、前縦壁が下方に変位し、その結果、下凸部に対する下凹部の係合状態が解除されて、キャップ部材がベース部材から抜け外れるおそれがある。このことは、上記のようにキャップ部材の長手方向の中央部を軟質合成樹脂により形成した場合には、より顕著となるものであり、軟質合成樹脂からなるカバー壁は、より大きく変形するため、前縦壁は容易に下方に変位し、その結果、下凸部に対する下凹部の係合状態が解除されて、キャップ部材がベース部材から抜け外れるおそれがある。 With the non-slip material of Patent Document 1, when a large external force is applied to the cover wall of the cap member, such as when the cover wall is stepped on, the cover wall deforms and expands front to back, causing the front vertical wall to displace downward. As a result, the engagement between the lower concave portion and the lower convex portion is released, and there is a risk that the cap member will come off the base member. This is even more pronounced when the longitudinal center portion of the cap member is formed from a soft synthetic resin, as described above. A cover wall made of a soft synthetic resin will deform more greatly, so the front vertical wall will easily displace downward, causing the engagement between the lower concave portion and the lower convex portion to be released, and there is a risk that the cap member will come off the base member.
本発明は、キャップ部材のカバー壁に大きな力が加わった場合でも、キャップ部材がベース部材から抜け外れることを防ぐことができる、より信頼性に優れた階段のノンスリップ材を提供することを目的とする。 The present invention aims to provide a more reliable non-slip material for stairs that can prevent the cap member from coming off the base member even when a large force is applied to the cover wall of the cap member.
本発明は、階段２の前側上方に位置するコーナー部５に装着されるノンスリップ材１を対象とする。ノンスリップ材１は、階段２の上面３に受け止められる水平部８と、水平部８の前端から下方に伸びる垂下部９とを有し、階段２のコーナー部５に固定される断面Ｌ字状の左右長尺の金属製のベース部材６と、水平部８の上面に沿うカバー壁２４と、垂下部９の前面に沿う前縦壁２５とを有し、係合構造を介してベース部材６に係合装着される断面Ｌ字状の左右長尺の樹脂製のキャップ部材７とからなる。係合構造は、ベース部材６の水平部８の後端とキャップ部材７のカバー壁２４の後端とを接合する第１係合部Ｅ１と、ベース部材６の垂下部９の下端とキャップ部材７の前縦壁２５の下端とを接合する第２係合部Ｅ２とを有する。第１係合部Ｅ１は、ベース部材６の水平部８の後端から後方に向かった片持ち状に張り出し形成された上凸部１２と、キャップ部材７のカバー壁２４の後端に形成された、前方に開口２６を有する鉤状の上凹部２７とで構成される。第２係合部Ｅ２が、ベース部材６の垂下部９の下端に形成された、上方に開口２１を有する鉤状の下凹部２２と、キャップ部材７の前縦壁２５の下端に形成されて、開口２１を介して下凹部２２に上方から挿入される下凸部２８とで構成されている。ベース部材６を構成する水平部８の前端には、垂下部９の前面よりも前方に張り出し形成された突出部１３が設けられている。突出部１３の下面は、キャップ部材７の抜け外れを阻止する抜止面１４とされている。突出部１３の上面および下面は水平面であり、突出部１３は、前方に真っすぐに張り出し形成されている。キャップ部材７のカバー壁２４と前縦壁２５との境界に係るコーナー部に、突出部１３を受け入れる凹入部２９が陥没形成されており、ベース部材６にキャップ部材７を係合装着させた状態において、突出部１３の前端面、上面、および下面が凹入部２９の前側の内面と非接触状態となっている。 The present invention relates to a non-slip material 1 that is attached to a corner portion 5 located above the front of a staircase 2. The non-slip material 1 has a horizontal portion 8 that is received on the upper surface 3 of the staircase 2 and a hanging portion 9 that extends downward from the front end of the horizontal portion 8. The non-slip material 1 is made of a metal base member 6 that is elongated and has an L-shaped cross section and is fixed to the corner portion 5 of the staircase 2, and a resin cap member 7 that is elongated and has an L-shaped cross section and has a cover wall 24 that fits along the upper surface of the horizontal portion 8 and a front vertical wall 25 that fits along the front surface of the hanging portion 9. The cap member 7 is engaged with the base member 6 via an engagement structure. The engagement structure has a first engagement portion E1 that joins the rear end of the horizontal portion 8 of the base member 6 to the rear end of the cover wall 24 of the cap member 7, and a second engagement portion E2 that joins the lower end of the hanging portion 9 of the base member 6 to the lower end of the front vertical wall 25 of the cap member 7. The first engagement portion E1 is composed of an upper convex portion 12 formed by a cantilever extending rearward from the rear end of the horizontal portion 8 of the base member 6, and a hook-shaped upper recessed portion 27 having an opening 26 at the front and formed at the rear end of the cover wall 24 of the cap member 7. The second engagement portion E2 is composed of a hook-shaped lower recessed portion 22 having an opening 21 at the top and formed at the lower end of the hanging portion 9 of the base member 6, and a lower convex portion 28 formed at the lower end of the front vertical wall 25 of the cap member 7 and inserted into the lower recessed portion 22 from above through the opening 21. The front end of the horizontal portion 8 constituting the base member 6 is provided with a protrusion 13 formed by protruding forward beyond the front surface of the hanging portion 9. The lower surface of the protrusion 13 serves as a retaining surface 14 that prevents the cap member 7 from coming off. The upper and lower surfaces of the protrusion 13 are horizontal, and the protrusion 13 is formed by protruding straight forward. A recess 29 for receiving the protrusion 13 is recessed into the corner portion at the boundary between the cover wall 24 and the front vertical wall 25 of the cap member 7, and when the cap member 7 is engaged and attached to the base member 6, the front end surface, upper surface, and lower surface of the protrusion 13 are not in contact with the front inner surface of the recess 29.
キャップ部材７が、軟質プラスチックをベースとして、部分的に当該軟質プラスチックよりも硬度の高い硬質プラスチックからなる補強部３０を形成してなるものであり、少なくとも上凹部２７と下凸部２８とが硬質プラスチックで形成されている。 The cap member 7 is made of a soft plastic base with a reinforcing section 30 made of hard plastic that is harder than the soft plastic, and at least the upper recess 27 and lower protrusion 28 are made of hard plastic.
カバー壁２４の前後方向の中央部分を除いて、当該中央部分を挟むように硬質プラスチックからなる補強部３０（３０ｃ・３０ａ）が形成され、これら補強部３０（３０ｃ・３０ａ）の間に、軟質プラスチックからなる易変形部３１が形成されている。 Except for the central portion in the front-to-rear direction of the cover wall 24, reinforcing portions 30 (30c, 30a) made of hard plastic are formed to sandwich the central portion, and easily deformable portions 31 made of soft plastic are formed between these reinforcing portions 30 (30c, 30a).
突出部１３の前側上方のコーナー部１６が、Ｒ状に形成されている。 The upper front corner 16 of the protrusion 13 is rounded.
本発明に係るノンスリップ材１においては、ベース部材６の垂下部９の下端とキャップ部材７の前縦壁２５の下端とを接合する第２係合部Ｅ２を、ベース部材６の垂下部９の下端に形成された、上方に開口２１を有する鉤状の下凹部２２と、キャップ部材７の前縦壁２５の下端に形成されて、開口２１を介して下凹部２２に上方から挿入される下凸部２８とで構成する。これによれば、例えば、キャップ部材７のカバー壁２４が踏まれるなど、カバー壁２４を下方に押し込むような大きな外力が当該カバー壁２４に作用されたとき、前縦壁２５は下方に移動しようとするが、この前縦壁２５の下方への移動は、ベース部材６の垂下部９の下端に形成された下凹部２２で規制されることとなる。また、このように下凸部２８が下方に移動しようとすればするほど、当該下凸部２８は下凹部２２の内部により深く進入することとなり、結果として、より強固に下凸部２８は下凹部２２に係合されることとなる。以上より、本発明によれば、カバー壁２４を下方に押し込む方向に外力が作用された場合でも、下凸部２８と下凹部２２との間の係合状態が解除されて、キャップ部材７がベース部材６から抜け外れることを防ぐことができ、より信頼性に優れた階段のノンスリップ材１を得ることができる。 In the non-slip material 1 according to the present invention, the second engagement portion E2, which joins the lower end of the hanging portion 9 of the base member 6 and the lower end of the front vertical wall 25 of the cap member 7, is composed of a hook-shaped lower recess 22 with an opening 21 at its top, formed at the lower end of the hanging portion 9 of the base member 6, and a lower protrusion 28 formed at the lower end of the front vertical wall 25 of the cap member 7, which is inserted into the lower recess 22 from above via the opening 21. With this configuration, when a large external force that pushes the cover wall 24 downward is applied to the cover wall 24 of the cap member 7, such as when the cover wall 24 is stepped on, the front vertical wall 25 will attempt to move downward, but this downward movement of the front vertical wall 25 will be restricted by the lower recess 22 formed at the lower end of the hanging portion 9 of the base member 6. Furthermore, the more the lower convex portion 28 attempts to move downward, the deeper it penetrates into the lower recess 22, resulting in the lower convex portion 28 being more firmly engaged with the lower recess 22. As described above, according to the present invention, even if an external force is applied in a direction that pushes the cover wall 24 downward, the engagement between the lower convex portion 28 and the lower recess 22 is released, preventing the cap member 7 from coming off the base member 6, resulting in a more reliable non-slip material 1 for stairs.
少なくとも上凹部２７と下凸部２８とが硬質プラスチックで形成されていると、これら上凹部２７や下凸部２８が変形することで、ベース部材６の上凸部１２や下凹部２２との間の係合状態が解除されることを防ぐことができる。したがって、キャップ部材７がベース部材６から抜け外れることを抑えて、より信頼性に優れた階段のノンスリップ材１を得ることができる。 If at least the upper recess 27 and the lower protrusion 28 are made of hard plastic, deformation of these upper recess 27 and lower protrusion 28 can be prevented, preventing the upper protrusion 12 and lower recess 22 of the base member 6 from being disengaged. This prevents the cap member 7 from coming off the base member 6, resulting in a more reliable non-slip staircase material 1.
カバー壁２４の前後方向の中央部分を除いて、当該中央部分を挟むように硬質プラスチックからなる補強部３０（３０ｃ・３０ａ）が形成され、これら補強部３０（３０ｃ・３０ａ）の間に、軟質プラスチックからなる易変形部３１が形成されていると、当該易変形部３１の形成箇所に係るカバー壁２４の中央部分から、当該カバー壁２４を折り曲げることが可能となる。これによれば、ベース部材６の垂下部９に対するキャップ部材７の前縦壁２５の被せ付け作業をより容易に進めて、より容易にキャップ部材７をベース部材６に装着することができる。 Except for the center portion in the front-to-rear direction of the cover wall 24, reinforcing portions 30 (30c, 30a) made of hard plastic are formed to sandwich the center portion, and a deformable portion 31 made of soft plastic is formed between these reinforcing portions 30 (30c, 30a). This makes it possible to bend the cover wall 24 from the center portion of the cover wall 24 where the deformable portion 31 is formed. This makes it easier to cover the front vertical wall 25 of the cap member 7 over the hanging portion 9 of the base member 6, and to attach the cap member 7 to the base member 6 more easily.
ベース部材６を構成する水平部８の前端には、垂下部９の前面よりも前方に張り出し形成された突出部１３が形成されており、キャップ部材７のカバー壁２４と前縦壁２５との境界に係るコーナー部に、突出部１３を受け入れる凹入部２９が陥没形成されており、突出部１３の下面が、キャップ部材７の抜け外れを阻止する抜止面１４とされていると、例えばキャップ部材７の前縦壁２５を押し上げるような外力が加わった場合でも、抜止面１４である突出部１３の下面にキャップ部材７の凹入部２９の下部が係合することで、キャップ部材７の前縦壁２５の上方移動を規制することができ、不用意に下凹部２２と下凸部２８との間の係合状態が解除されることを防ぐことができる。 A protrusion 13 is formed at the front end of the horizontal portion 8 that constitutes the base member 6, extending forward beyond the front surface of the hanging portion 9. A recessed portion 29 that receives the protrusion 13 is recessed into the corner at the boundary between the cover wall 24 and the front vertical wall 25 of the cap member 7. The underside of the protrusion 13 serves as a retaining surface 14 that prevents the cap member 7 from coming off. For example, even if an external force is applied that pushes up the front vertical wall 25 of the cap member 7, the lower surface of the recessed portion 29 of the cap member 7 engages with the underside of the protrusion 13, which serves as the retaining surface 14, thereby restricting the upward movement of the front vertical wall 25 of the cap member 7 and preventing the engagement between the lower recess 22 and the lower convex portion 28 from being inadvertently released.
突出部１３の前側上方のコーナー部１６が、Ｒ状に形成されていると、より容易に凹入部２９内へ突出部１３を誘い込むことができる。したがって、より容易にキャップ部材７をベース部材６に装着することができる。 If the corner 16 on the upper front side of the protrusion 13 is rounded, the protrusion 13 can be more easily guided into the recess 29. This makes it easier to attach the cap member 7 to the base member 6.
ベース部材６にキャップ部材７を係合装着させた状態において、突出部１３の前端面が凹入部２９の内面の前側と非接触状態となっていると、両者（突出部１３と凹入部２９）の間に空隙Ｓを形成することができる。これによれば、例えばキャップ部材７の前方から衝撃が加わった場合でも、当該衝撃によるキャップ部材７の変形を空隙Ｓで吸収することができるので、より衝撃吸収力に優れたノンスリップ材１を得ることができる。 When the cap member 7 is engaged and attached to the base member 6, if the front end face of the protrusion 13 is not in contact with the front side of the inner surface of the recess 29, a gap S can be formed between the two (protrusion 13 and recess 29). As a result, even if an impact is applied to the cap member 7 from the front, the gap S can absorb deformation of the cap member 7 caused by the impact, resulting in a non-slip material 1 with superior impact absorption capabilities.
（実施形態） 図１～図６に、本発明に係る階段のノンスリップ材の実施形態を示す。本実施形態における前後、左右、上下とは、図１、図２に示す交差矢印と、各矢印の近傍に表記した前後、左右、上下の表示に従う。図２に示すように、本実施形態のノンスリップ材１が適用される階段２は、所定の高さを置いて形成された複数個の踏面（階段２の上面）３と、各踏面３の奥端部から垂直方向に形成された蹴上面４とを有するコンクリート成型品である。ノンスリップ材１は、階段２の前側上方に位置するコーナー部５に装着される。 (Embodiment) Figures 1 to 6 show an embodiment of a non-slip material for stairs according to the present invention. In this embodiment, front, back, left, right, and up and down refer to the crossed arrows shown in Figures 1 and 2 and the indications of front, back, left, right, and up and down written near each arrow. As shown in Figure 2, the staircase 2 to which the non-slip material 1 of this embodiment is applied is a concrete molded product having multiple treads 3 (the upper surface of the staircase 2) formed at a predetermined height and a riser surface 4 formed vertically from the inner end of each tread 3. The non-slip material 1 is attached to the corner portion 5 located above the front side of the staircase 2.
図１および図４に示すように、ノンスリップ材１は、ベース部材６と、ベース部材６に係合装着されるキャップ部材７とで構成される。ベース部材６は、階段２の踏面３で受け止められる平板状の水平部８と、水平部８の前端から下方に伸びて蹴上面４で受け止められる垂下部９とを有する縦断側面視でＬ字状に形成された左右長尺の金属成型品（条材）である。水平部８の前後方向の中央部には、ビス１０用の通孔１１が左右方向の所定間隔置きに開設されている。水平部８の後端には、ベース部材６にキャップ部材７を係合装着するための係合突起（上凸部）１２が形成されている。係合突起１２は、水平部８の後端に連続して、後方に向かって片持ち状に張り出し形成されている。係合突起１２は、水平部８の左右方向の全長に亘って設けられている。 As shown in Figures 1 and 4, the non-slip material 1 is composed of a base member 6 and a cap member 7 that engages and is attached to the base member 6. The base member 6 is a long, L-shaped metal molded product (strip) in a vertical cross-sectional side view. The base member 6 has a flat horizontal portion 8 that is received by the tread 3 of the staircase 2, and a hanging portion 9 that extends downward from the front end of the horizontal portion 8 and is received by the riser surface 4. Through holes 11 for screws 10 are opened at predetermined intervals in the left-right direction in the center of the horizontal portion 8 in the front-to-rear direction. An engagement protrusion (upper convex portion) 12 is formed at the rear end of the horizontal portion 8 for engaging and attaching the cap member 7 to the base member 6. The engagement protrusion 12 is formed contiguous with the rear end of the horizontal portion 8 and protrudes rearward in a cantilevered manner. The engagement protrusion 12 is provided along the entire length of the horizontal portion 8 in the left-to-right direction.
図３乃至図５に示すように、水平部８の前端には、垂下部９の前面よりも前方に張り出し形成された突出部１３が、水平部８の左右方向の全長に亘って設けられている。突出部１３の垂下部９よりも前側に位置する下面は、キャップ部材７の不用意な抜け外れを防ぐための抜止面１４とされている。抜止作用の向上を図るため、突出部１３の前側下方のコーナー部１５は直角状に形成されている。一方、突出部１３の前側上方のコーナー部１６はＲ状に形成されている。 As shown in Figures 3 to 5, a protrusion 13 is formed at the front end of the horizontal portion 8, extending forward beyond the front surface of the hanging portion 9 and spanning the entire length of the horizontal portion 8 in the left-right direction. The lower surface of the protrusion 13, located forward of the hanging portion 9, serves as a retaining surface 14 to prevent the cap member 7 from accidentally coming off. To improve the retaining effect, the front lower corner 15 of the protrusion 13 is formed in a right angle. On the other hand, the front upper corner 16 of the protrusion 13 is formed in an R-shape.
垂下部９は、水平部８から下方に伸びて、前方に向かうように膨出形成された湾曲状の上半部１８と、上半部１８の下方に連続して下方向に伸び、後側に蹴上面４に接するストレート面を有する下半部１９とを備える。下半部１９の下端には前側上向きに突出する係止壁２０が形成されており、係止壁２０の後面と下半部１９の前面との間には、上方に開口２１を有する縦断側面視で鉤状の係合凹部（下凹部）２２が形成されている。この係合凹部２２は、垂下部９の左右方向の全長に亘って設けられている。 The hanging portion 9 comprises a curved upper half portion 18 that extends downward from the horizontal portion 8 and bulges forward, and a lower half portion 19 that extends downward continuously from the lower portion of the upper half portion 18 and has a straight surface that contacts the riser surface 4 on its rear side. A locking wall 20 that protrudes upward and forward is formed at the lower end of the lower half portion 19, and a hook-shaped engagement recess (lower recess) 22 with an opening 21 at the top is formed between the rear surface of the locking wall 20 and the front surface of the lower half portion 19 in a vertical cross-sectional side view. This engagement recess 22 is provided over the entire length of the hanging portion 9 in the left-right direction.
キャップ部材７は、ベース部材６の水平部８の上面を覆うカバー壁２４と、ベース部材６の垂下部９の前面に沿う前縦壁２５とを有する縦断側面視でＬ字状に形成された左右長尺の樹脂成型品である。カバー壁２４の後端には、前方に開口２６を有し、縦断側面視で鉤状に形成されて、係合突起１２を受け入れる装着溝（上凹部）２７が、左右方向の全長に亘って設けられている。前縦壁２５の下端には、ベース部材６の垂下部９の係合凹部２２に差し込み挿入される係止脚片（下凸部）２８が、左右方向の全長に亘って設けられている。ベース部材６の係合突起１２とキャップ部材７の装着溝２７とで、第１接合部Ｅ１が形成される。また、ベース部材６の係合凹部２２とキャップ部材７の係止脚片２８とで、第２接合部Ｅ２が形成される。 The cap member 7 is an elongated, L-shaped resin molded product in a vertical cross-sectional view. It has a cover wall 24 that covers the upper surface of the horizontal portion 8 of the base member 6 and a front vertical wall 25 that fits along the front surface of the hanging portion 9 of the base member 6. The rear end of the cover wall 24 has an opening 26 at the front. A mounting groove (upper recess) 27, which is hook-shaped in a vertical cross-sectional view and accepts the engaging protrusion 12, is provided along its entire length in the horizontal direction. A locking leg piece (lower protrusion) 28, which is inserted into the engaging recess 22 of the hanging portion 9 of the base member 6, is provided along its entire length in the horizontal direction at the lower end of the front vertical wall 25. The engaging protrusion 12 of the base member 6 and the mounting groove 27 of the cap member 7 form a first joint E1. The engaging recess 22 of the base member 6 and the locking leg piece 28 of the cap member 7 form a second joint E2.
キャップ部材７のカバー壁２４と前縦壁２５との境界に係る内側のコーナー部には、ベース部材６の突出部１３を受け入れるための凹入部２９が陥没形成されている。凹入部２９の内面の形状は、縦断側面視で部分円弧状とされている。また、凹入部２９は、左右方向の全長に亘って設けられている。図３に示すように、ベース部材６にキャップ部材７が係合装着された状態において、突出部１３の下面（抜止面１４）と前端面は、凹入部２９の内面と非接触となり、両者（突出部１３と凹入部２９）の間には空隙Ｓが形成されるように構成されている。 A recess 29 for receiving the protrusion 13 of the base member 6 is recessed into the inner corner of the boundary between the cover wall 24 and the front vertical wall 25 of the cap member 7. The inner surface of the recess 29 is partially arc-shaped in a vertical cross-sectional side view. The recess 29 is also provided over its entire length in the left-right direction. As shown in Figure 3, when the cap member 7 is engaged and attached to the base member 6, the underside (retaining surface 14) and front end face of the protrusion 13 do not come into contact with the inner surface of the recess 29, and a gap S is formed between the two (the protrusion 13 and the recess 29).
キャップ部材７は、軟質プラスチックをベースとするものであり、部分的に当該軟質プラスチックよりも硬度の高い硬質プラスチックからなる補強部３０が形成されている。図４に示すように、本実施形態では、カバー壁２４の後端の装着溝２７を含む箇所（第１補強部３０ａ）、前縦壁２５の下端の係止脚片２８を含む箇所（第２補強部３０ｂ）、及びカバー壁２４の前端寄り（第３補強部３０ｃ）の計三箇所に、硬質プラスチックからなる補強部３０が形成されている。第１補強部３０ａの前端は、第３補強部３０ｃの後端までには至っておらず、これら第１補強部３０ａと第３補強部３０ｃの間のカバー壁２４の前後方向の中央部分には、軟質プラスチックからなる易変形部３１が形成されている。 The cap member 7 is based on soft plastic, and is partially formed with reinforcing portions 30 made of hard plastic that are harder than the soft plastic. As shown in Fig. 4, in this embodiment, the reinforcing portions 30 made of hard plastic are formed in three locations: a first reinforcing portion 30a at a location including the mounting groove 27 at the rear end of the cover wall 24; a second reinforcing portion 30b at a location including the locking leg piece 28 at the lower end of the front vertical wall 25; and a third reinforcing portion 30c near the front end of the cover wall 24. The front end of the first reinforcing portion 30a does not extend to the rear end of the third reinforcing portion 30c, and a deformable portion 31 made of soft plastic is formed in the central portion of the cover wall 24 in the front-to-rear direction between the first reinforcing portion 30a and the third reinforcing portion 30c.
次に、ノンスリップ材１の構築方法について図６を参照して説明する。まず、ビス１０を使って階段２のコーナー部５にベース部材６を締結固定する。このとき、水平部８は踏面３に接し、垂下部９は蹴上面４に接している。次に、図６（ａ）に示すように、ベース部材６の係合突起１２に、キャップ部材７の装着溝２７を掛止させて、仮止め状態とする。このとき、キャップ部材７の前縦壁２５の下端の係止脚片２８は、ベース部材６の水平部８の前端の突出部１３の上方に位置している。次に、上記の仮止め状態から、図６（ｂ）に示すように、カバー壁２４を僅かに撓み変形させて、キャップ部材７の前縦壁２５の下端の係止脚片２８を突出部１３より前方に変位させる。このとき、カバー壁２４は、前後の補強部３０（第３補強部３０ｃと第１補強部３０ａ）とで挟まれた、軟質プラスチックからなる易変形部３１から変形することとなる。また、Ｒ状に形成された突出部１３の前側上方のコーナー部１６により、係止脚片２８は突出部１３を容易に乗り越えることができる。次に、図６（ｃ）に示すように、係合突起１２と装着溝２７との係合部を中心にして、キャップ部材７の前端を下方に押し下げ、図１に示すように、キャップ部材７の係止脚片２８をベース部材６の係合凹部２２の奥端（下端）まで差し込む。これにより、係合突起１２と装着溝２７との凹凸係合状態が確立されるとともに、係止脚片２８と係合凹部２２との凹凸係合状態が確立され、これら二箇所の凹凸係合により、キャップ部材７はベース部材６に確りと係合装着されて、ノンスリップ材１が構築される。また、図３に示すように、キャップ部材７をベース部材６に係合装着した状態において、突出部１３の下面（抜止面１４）と前端面は、凹入部２９の内面と非接触となっている。 Next, the construction method of the non-slip material 1 will be described with reference to Figure 6. First, the base member 6 is fastened to the corner portion 5 of the staircase 2 using screws 10. At this time, the horizontal portion 8 contacts the tread surface 3, and the hanging portion 9 contacts the riser surface 4. Next, as shown in Figure 6(a), the mounting groove 27 of the cap member 7 is engaged with the engaging protrusion 12 of the base member 6 to create a temporary fastening state. At this time, the locking leg 28 at the lower end of the front vertical wall 25 of the cap member 7 is positioned above the protrusion 13 at the front end of the horizontal portion 8 of the base member 6. Next, from the temporarily fastened state, as shown in Figure 6(b), the cover wall 24 is slightly flexed and deformed, displacing the locking leg 28 at the lower end of the front vertical wall 25 of the cap member 7 forward of the protrusion 13. At this time, the cover wall 24 deforms from the easily deformable portion 31 made of soft plastic, which is sandwiched between the front and rear reinforcing portions 30 (the third reinforcing portion 30c and the first reinforcing portion 30a). Furthermore, the rounded corner 16 on the upper front side of the protrusion 13 allows the locking leg 28 to easily climb over the protrusion 13. Next, as shown in FIG. 6(c), the front end of the cap member 7 is pushed downward around the engagement between the engagement protrusion 12 and the mounting groove 27. As shown in FIG. 1, the locking leg 28 of the cap member 7 is inserted all the way into the inner end (bottom end) of the engagement recess 22 of the base member 6. This establishes a concave-convex engagement between the engagement protrusion 12 and the mounting groove 27, and a concave-convex engagement between the locking leg 28 and the engagement recess 22. These two engagements securely engage and mount the cap member 7 to the base member 6, thereby forming the non-slip material 1. Furthermore, as shown in FIG. 3, when the cap member 7 is engaged and mounted to the base member 6, the lower surface (retaining surface 14) and front end surface of the protrusion 13 are not in contact with the inner surface of the recess 29.
以上のような本実施形態に係るノンスリップ材１においては、キャップ部材７のカバー壁２４が踏まれるなど、カバー壁２４に大きな外力が作用されると、カバー壁２４は前後に広がるように変形しようとし、前縦壁２５は下方に移動しようとする。しかし、この前縦壁２５の下方への移動は、金属製のベース部材６の垂下部９の下端に形成された係合凹部２２で受け止められる。また、この前縦壁２５が下方へ移動しようとすればするほど、前縦壁２５の下端に形成された係止脚片２８は、係合凹部２２の内部により深く進入することとなり、結果として、より強固に係止脚片２８と係合凹部２２とは、凹凸係合されることとなる。以上より、本実施形態に係るノンスリップ材１によれば、キャップ部材７のカバー壁２４を下方に押し込む方向に外力が作用された場合でも、係止脚片２８と係合凹部２２との間の係合状態が解除されて、キャップ部材７がベース部材６から抜け外れることはなく、より信頼性に優れた階段のノンスリップ材１を得ることができる。 In the non-slip material 1 according to this embodiment, when a large external force is applied to the cover wall 24 of the cap member 7, such as when the cover wall 24 is stepped on, the cover wall 24 tends to deform and expand from front to back, causing the front vertical wall 25 to move downward. However, this downward movement of the front vertical wall 25 is accommodated by the engaging recess 22 formed at the lower end of the hanging portion 9 of the metal base member 6. Furthermore, the more the front vertical wall 25 moves downward, the deeper the locking leg 28 formed at the lower end of the front vertical wall 25 penetrates into the engaging recess 22, resulting in a more secure engagement between the locking leg 28 and the engaging recess 22. As described above, with the non-slip material 1 according to this embodiment, even when an external force is applied in a direction that pushes the cover wall 24 of the cap member 7 downward, the engagement between the locking leg 28 and the engaging recess 22 is released, preventing the cap member 7 from coming off the base member 6. This results in a more reliable non-slip material 1 for stairs.
装着溝２７と係止脚片２８とを硬質プラスチックで形成したので、これら装着溝２７や係止脚片２８が変形することに起因して、ベース部材６の係合突起１２や係合凹部２２との間の係合状態が解除されることを防ぐことができる。したがって、キャップ部材７がベース部材６から外れることを抑えて、より信頼性に優れた階段のノンスリップ材１を得ることができる。 The mounting groove 27 and locking leg 28 are made of hard plastic, which prevents the mounting groove 27 and locking leg 28 from deforming and disengaging from the engaging protrusion 12 and engaging recess 22 of the base member 6. This prevents the cap member 7 from coming off the base member 6, resulting in a more reliable non-slip staircase material 1.
カバー壁２４の前後方向の中央部分を除いて、当該中央部分を挟むように硬質プラスチックからなる補強部３０ａ・３０ｃを形成して、易変形部３１を形成したので、カバー壁２４を易変形部３１から容易に折り曲げることができる。したがって、ベース部材６の垂下部９に対するキャップ部材７の前縦壁２５の被せ付け作業をより容易に進めて、より容易にキャップ部材７をベース部材６に係合装着させることができる。 Except for the center portion in the front-to-rear direction of the cover wall 24, reinforcing portions 30a and 30c made of hard plastic are formed to sandwich this center portion, forming the easily deformable portion 31. This allows the cover wall 24 to be easily bent from the easily deformable portion 31. This makes it easier to cover the front vertical wall 25 of the cap member 7 over the hanging portion 9 of the base member 6, and to more easily engage and attach the cap member 7 to the base member 6.
ベース部材６を構成する水平部８の前端に、垂下部９の前面よりも前方に張り出し形成された突出部１３を形成し、突出部１３の下面に、キャップ部材７の抜け外れを阻止する抜止面１４を形成した。また、キャップ部材７のカバー壁２４と前縦壁２５との境界に係るコーナー部に、突出部１３を受け入れる凹入部２９を陥没形成した。これらによれば、例えばキャップ部材７の前縦壁２５を押し上げるような外力が加わった場合でも、抜止面１４である突出部１３の下面にキャップ部材７の凹入部２９の下部が係合することで、キャップ部材７の前縦壁２５の上方移動を規制することができ、不用意に係合凹部２２と係止脚片２８との間の凹凸係合状態が解除されることを防ぐことができる。加えて、キャップ部材７の装着溝２７と係止脚片２８とを硬質プラスチックで形成し、その他の箇所を軟質プラスチックで構成したので、キャップ部材７のカバー壁２４と前縦壁２５との境界に係るコーナー部を軟質プラスチックで構成することができる。これによれば、当該コーナー部に形成されて突出部１３を受け入れる凹入部２９が、突出部１３と接触して破損することを防ぐことができる。また、軟質プラスチックに由来する柔軟性と衝撃吸収性により、外部衝撃を緩和して凹入部２９が欠損することを防ぐことができる。因みに凹入部２９を硬質プラスチックで形成した場合には、衝撃を緩和できず、欠損するおそれがある。 The front end of the horizontal portion 8 of the base member 6 is formed with a protrusion 13 that extends forward beyond the front surface of the hanging portion 9, and the underside of the protrusion 13 is formed with a retention surface 14 that prevents the cap member 7 from coming off. Furthermore, a recess 29 that receives the protrusion 13 is recessed into the corner at the boundary between the cover wall 24 and the front vertical wall 25 of the cap member 7. With this configuration, even if an external force is applied that pushes up the front vertical wall 25 of the cap member 7, the lower part of the recess 29 of the cap member 7 engages with the underside of the protrusion 13, which serves as the retention surface 14, thereby restricting upward movement of the front vertical wall 25 of the cap member 7 and preventing the unintended release of the engagement between the engagement recess 22 and the locking leg 28. Additionally, since the mounting groove 27 and locking leg 28 of the cap member 7 are made of hard plastic and the other parts are made of soft plastic, the corner at the boundary between the cover wall 24 and the front vertical wall 25 of the cap member 7 can be made of soft plastic. This prevents the recessed portion 29 formed in the corner portion to receive the protrusion 13 from coming into contact with the protrusion 13 and being damaged. Furthermore, the flexibility and shock absorption properties of soft plastic help to absorb external impacts and prevent the recessed portion 29 from breaking. Incidentally, if the recessed portion 29 were made of hard plastic, it would not be able to absorb the impact and there is a risk of it breaking.
突出部１３の前側上方のコーナー部が、Ｒ状に形成されていると、より容易に凹入部２９内へ突出部１３を誘い込むことができる。したがって、より容易にキャップ部材７をベース部材６に装着することができる。 If the upper front corner of the protrusion 13 is rounded, the protrusion 13 can be more easily guided into the recess 29. This makes it easier to attach the cap member 7 to the base member 6.
ベース部材６にキャップ部材７を係合装着させた状態において、突出部１３の前端面が凹入部２９の内面と非接触状態となっていると、両者（突出部１３と凹入部２９）の間に空隙Ｓを形成することができる。これによれば、例えばキャップ部材７の前方から衝撃が加わった場合でも、当該衝撃によるキャップ部材７の変形を空隙Ｓで吸収することができるので、より衝撃吸収力に優れたノンスリップ材１を得ることができる。 When the cap member 7 is engaged and attached to the base member 6, if the front end surface of the protrusion 13 is not in contact with the inner surface of the recess 29, a gap S can be formed between the two (the protrusion 13 and the recess 29). As a result, even if an impact is applied to the cap member 7 from the front, the gap S can absorb any deformation of the cap member 7 caused by the impact, resulting in a non-slip material 1 with superior impact absorption capabilities.
本発明のノンスリップ材１が装着される階段は、コンクリート製の階段２に限られない。 The stairs to which the non-slip material 1 of the present invention can be attached are not limited to stairs 2 made of concrete.
１ ノンスリップ材
２ 階段
３ 階段の上面（踏面）
５ コーナー部
６ ベース部材
７ キャップ部材
８ 水平部
９ 垂下部
１２ 上凸部（係合突起）
１３ 突出部
１４ 抜止面
１６ 突出部の前側上方のコーナー部
２１ 開口
２２ 下凹部（係合凹部）
２６ 開口
２７ 上凹部（装着溝）
２８ 下凸部（係止脚片）
２９ 凹入部
３０ 補強部
３１ 易変形部
Ｅ１ 第１係合部
Ｅ２ 第２係合部
Ｓ 空隙
1 Non-slip material 2 Stairs 3 Top surface of stairs (tread)
5 Corner portion 6 Base member 7 Cap member 8 Horizontal portion 9 Hanging portion 12 Upper convex portion (engagement protrusion)
13 Protrusion 14 Retaining surface 16 Front upper corner portion of protrusion 21 Opening 22 Lower recess (engagement recess)
26 Opening 27 Upper recess (mounting groove)
28 Lower convex portion (locking leg piece)
29 Recessed portion 30 Reinforced portion 31 Deformable portion E1 First engaging portion E2 Second engaging portion S Gap
Claims (4)
階段（２）の上面（３）に受け止められる水平部（８）と、水平部（８）の前端から下方に伸びる垂下部（９）とを有し、階段（２）のコーナー部（５）に固定される断面Ｌ字状の左右長尺の金属製のベース部材（６）と、
水平部（８）の上面に沿うカバー壁（２４）と、垂下部（９）の前面に沿う前縦壁（２５）とを有し、係合構造を介してベース部材（６）に係合装着される断面Ｌ字状の左右長尺の樹脂製のキャップ部材（７）とからなり、
係合構造が、ベース部材（６）の水平部（８）の後端とキャップ部材（７）のカバー壁（２４）の後端とを接合する第１係合部（Ｅ１）と、ベース部材（６）の垂下部（９）の下端とキャップ部材（７）の前縦壁（２５）の下端とを接合する第２係合部（Ｅ２）とを有し、
第１係合部（Ｅ１）が、ベース部材（６）の水平部（８）の後端から後方に向かった片持ち状に張り出し形成された上凸部（１２）と、キャップ部材（７）のカバー壁（２４）の後端に形成された、前方に開口（２６）を有する鉤状の上凹部（２７）とで構成され、
第２係合部（Ｅ２）が、ベース部材（６）の垂下部（９）の下端に形成された、上方に開口（２１）を有する鉤状の下凹部（２２）と、キャップ部材（７）の前縦壁（２５）の下端に形成されて、開口（２１）を介して下凹部（２２）に上方から挿入される下凸部（２８）とで構成されており、
ベース部材（６）を構成する水平部（８）の前端には、垂下部（９）の前面よりも前方に張り出し形成された突出部（１３）が設けられており、
突出部（１３）の下面が、キャップ部材（７）の抜け外れを阻止する抜止面（１４）とされており、
突出部（１３）の上面および下面は水平面であり、突出部（１３）は、前方に真っすぐに張り出し形成されており、
キャップ部材（７）のカバー壁（２４）と前縦壁（２５）との境界に係るコーナー部に、突出部（１３）を受け入れる凹入部（２９）が陥没形成されており、ベース部材（６）にキャップ部材（７）を係合装着させた状態において、突出部（１３）の前端面、上面、および下面が凹入部（２９）の前側の内面と非接触状態となっていることを特徴とする階段のノンスリップ材。 A non-slip material attached to a corner portion (5) located at the front upper side of a staircase (2),
a horizontal portion (8) that is received on the upper surface (3) of the stairs (2) and a hanging portion (9) that extends downward from the front end of the horizontal portion (8); and a metal base member (6) that is L-shaped in cross section and is fixed to a corner portion (5) of the stairs (2);
The cap member (7) is made of resin and has an L-shaped cross section and is elongated from side to side, and has a cover wall (24) that fits along the top surface of the horizontal portion (8) and a front vertical wall (25) that fits along the front surface of the hanging portion (9). The cap member (7) is engaged with and attached to the base member (6) via an engaging structure.
The engagement structure has a first engagement portion (E1) that joins the rear end of the horizontal portion (8) of the base member (6) to the rear end of the cover wall (24) of the cap member (7), and a second engagement portion (E2) that joins the lower end of the hanging portion (9) of the base member (6) to the lower end of the front vertical wall (25) of the cap member (7),
The first engagement portion (E1) is composed of an upper convex portion (12) formed by projecting rearward in a cantilevered manner from the rear end of the horizontal portion (8) of the base member (6), and a hook-shaped upper concave portion (27) having an opening (26) at the front and formed at the rear end of the cover wall (24) of the cap member (7),
The second engaging portion (E2) is composed of a hook-shaped lower recess (22) having an opening (21) at the top, which is formed at the bottom end of the hanging portion (9) of the base member (6), and a lower protrusion (28) which is formed at the bottom end of the front vertical wall (25) of the cap member (7) and is inserted from above into the lower recess (22) through the opening (21) ,
A protrusion (13) is provided at the front end of the horizontal portion (8) constituting the base member (6), and the protrusion (13) is formed to protrude forward beyond the front surface of the hanging portion (9),
The lower surface of the protrusion (13) is a retaining surface (14) that prevents the cap member (7) from coming off,
The upper and lower surfaces of the protrusion (13) are horizontal, and the protrusion (13) is formed to protrude straight forward.
A non-slip material for stairs is characterized in that a recess (29) for receiving a protrusion (13) is recessed into the corner portion at the boundary between the cover wall (24) and the front vertical wall (25) of the cap member (7), and when the cap member (7) is engaged and attached to the base member (6), the front end face, upper face, and lower face of the protrusion (13) are in a non-contact state with the front inner face of the recess (29) .
少なくとも上凹部（２７）と下凸部（２８）とが硬質プラスチックで形成されている、請求項１記載の階段のノンスリップ材。 The cap member (7) is made of a soft plastic base with a reinforcing portion (30) partially formed thereon, the reinforcing portion being made of a hard plastic having a higher hardness than the soft plastic,
2. The non-slip material for stairs according to claim 1, wherein at least the upper recess (27) and the lower protrusion (28) are made of hard plastic.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002161620A (en) | 2000-11-24 | 2002-06-04 | Sekisui House Ltd | Non-slip cushioning and stair structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS512905Y1 (en) * | 1970-08-30 | 1976-01-28 | ||
| JPS5938833Y2 (en) * | 1976-10-13 | 1984-10-29 | 株式会社ナカ技術研究所 | anti-slip for buildings |
| JPS5934670Y2 (en) * | 1979-05-22 | 1984-09-26 | 株式会社ナカ技術研究所 | anti-slip for buildings |
| JPS55168628U (en) * | 1979-05-22 | 1980-12-04 | ||
| JPS5697078U (en) * | 1979-12-25 | 1981-08-01 | ||
| JPS58126322U (en) * | 1982-02-22 | 1983-08-27 | 株式会社川口技研 | anti-slip for stairs for rugs |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002161620A (en) | 2000-11-24 | 2002-06-04 | Sekisui House Ltd | Non-slip cushioning and stair structure |
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