Tokami Kiribu
The floor trim material design addresses secure attachment and appearance issues by using a cover material with a protrusion and base material with twin walls, ensuring secure, crack-resistant, and easy-to-maintain installation.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2026-03-12
AI Technical Summary
Existing floor trim materials require wider base materials for secure attachment, leading to increased width and potential cracking, poor appearance, and difficulty in replacement or maintenance due to reliance on screws or adhesives.
A floor trim material design featuring a cover material with a longitudinal protrusion and a base material with twin longitudinal walls, allowing secure attachment without increasing width, using notches and through holes for screws, and asymmetric notches for flexibility.
The design ensures secure attachment without increasing base material width, reduces cracking risk, maintains appearance, and facilitates easy installation and maintenance.
Smart Images

Figure 2026044181000001_ABST
Abstract
Description
[Technical Field]
[0001] To provide an improved floor trim material for construction, more specifically, to a floor trim material that can be securely fastened to a floor surface without increasing the width of a base material, can have a thin basis weight of a cover material, is hard to crack even when stepped on, and has a good appearance. [Background technology]
[0002] When laying flooring materials in a building, floor trimmings are used to cover the joints between the flooring materials to hide them. One structure of this floor trimming material has been disclosed in which a pair of cover materials with an approximately T-shaped cross section and a convex and concave portion protruding from a base material are inserted into each other and fixed together (see, for example, Patent Document 1).
[0003] Conventionally, in order to fix floor trim to the floor surface, it was common to screw the base material to the floor surface, and in order to form holes for inserting these screws between the recesses in the base plate (the contact portion on the underside of the base plate), it was necessary to increase the width of the base plate.
[0004] This involves forming a recess in the base material and providing a protrusion (convex portion) on the underside of the cover material that can be inserted into this recess, which unavoidably creates the problem of increasing the width of the basis weight of the cover material (the part that corresponds to the roof).
[0005] When the width of the basis weight is so large, the floor trim, which is originally an auxiliary part, becomes conspicuous and the appearance is poor.Furthermore, because the floor trim is frequently stepped on, the base end of the protrusion is easily subjected to stress, which can cause the basis weight to crack.
[0006] However, if the width of the board is narrowed, there is insufficient area for screws, so the board needs to be fixed directly to the floor surface, which can result in the board being attached more firmly than necessary using double-sided tape or adhesive, making replacement and maintenance difficult.
[0007] In addition, one method of fixing the base material involves stepping on the side piece of the board with the edge of the flooring material, but this causes the edge of the flooring material to lift up, so it is necessary to prevent this by forming a notch or the like on the bottom of the edge of the flooring material where the side piece of the board will be stepped on, which is a problem that requires a lot of processing effort. [Prior art documents] [Patent documents]
[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-63934 Summary of the Invention [Problem to be solved by the invention]
[0009] The present invention was made in consideration of the above-mentioned problems in the prior art, and its purpose is to provide a floor trim material that can be securely attached to the floor surface without increasing the width of the base material, that can have a fine basis weight for the cover material, that is resistant to cracking even when stepped on, and that looks good. [Means for solving the problem]
[0010] The means adopted by the present inventor to solve the above technical problems will be described below with reference to the accompanying drawings.
[0011] That is, the present invention provides a long interior component that can be placed in a gap created at a joint between floor materials F arranged on the floor surface of a building to cover the gap, and that is composed of a pair of cover materials 1 and a base material 2, and that can fix the base material 2 to the floor surface by floor fixing means 3, A protrusion 12 consisting of a single protrusion along the longitudinal direction is formed on the underside of the face 11 of the cover material 1, and the edge of the face 11 can be placed on the edge of the floor material F, A pair of walls 22 consisting of two longitudinally extending protrusions are formed at the approximate center of the upper surface of the substrate 21 of the base material 2, and the protrusion 12 can be inserted into a recess 22A between the pair of walls 22 to be fitted therein. A notch 22B is provided in the pair of walls 22, and the substrate 21 can be cut at the notch 22B. The floor trim material was completed by adopting a technical measure of making the width direction length of the facing 11 of the cover material 1 larger than the width direction length of the substrate 21 of the base material 2.
[0012] In addition, the present invention provides a cover material 1 having a lower surface on which a pair of walls 13 consisting of two longitudinally extending protrusions are formed, and the edge of the cover material 11 can be placed on the edge of the floor material F. A protrusion 23 consisting of a single protrusion extending in the longitudinal direction is formed at approximately the center of the upper surface of the substrate 21 of the base material 2, and this protrusion 23 can be inserted into the recess 13A between the two walls 13 and fitted therein. A notch 23A is provided in the protrusion 23, and the substrate 21 can be cut at this notch 23A. The floor trim can also be completed by adopting a technical measure in which the widthwise length of the facing 11 of the cover material 1 is greater than the widthwise length of the substrate 21 of the base material 2.
[0013] Furthermore, in order to solve the above problems, the present invention can also adopt, in addition to the above means, a technical measure of providing a through hole 21A in the bottom surface of the substrate 21 at the cutout portion 22B of the base material 2, in which a floor fixing means 3 can be arranged, if necessary.
[0014] Furthermore, in order to solve the above problem, the present invention can also adopt, in addition to the above means, a technical measure of providing multiple cutout portions 22B at asymmetric positions relative to the longitudinal center of the base material 2, if necessary.
[0015] Furthermore, in order to solve the above problems, the present invention can also adopt, in addition to the above means, a technical means, if necessary, that allows the upper ends of the twin walls 22 of the base material 2 to be attached in a state in which they abut against the underside of the cover material 1.
[0016] Furthermore, in order to solve the above problems, the present invention can also employ a technical measure of forming spacer protrusions 22C on both side surfaces of the twin walls 22 in addition to the above measures, if necessary.
[0017] In addition, the present invention allows the plurality of base members 2 to be connected to each other in the longitudinal direction by the joint members 4, A protrusion consisting of a single protrusion along the longitudinal direction or a pair of walls consisting of two protrusions along the longitudinal direction that are in a fitting relationship with each other is formed on the lower surface of the face 11 of the cover material 1 and the opposing surface of the upper surface of the substrate 21 of the base material 2, and this protrusion can be inserted into a recess between the pair of walls to be fitted on top of each other. The floor trim can also be completed by adopting a technical measure that allows the edge portion of the facing 11 of the cover material 1 to be placed on the edge portion of the floor material F and makes the widthwise length of the facing 11 greater than the widthwise length of the substrate 21 of the base material 2. [Effects of the Invention]
[0018] In the present invention, in a long interior component that is composed of a pair of cover materials and a base material and that can fix the base material to a floor surface by a floor fixing means, a convex portion consisting of a single protrusion along the longitudinal direction is formed on the underside of the face of the cover material, so that the edge of the face can be placed on the edge of the floor material, while twin walls consisting of two protrusions along the longitudinal direction are formed in the approximate center of the upper surface of the base plate of the base material, so that the convex portion can be inserted into the recess between the twin walls and can be attached, and notches are provided in the twin walls so that the base plate can be cut at these notches, and by making the width direction length of the face of the cover material larger than the width direction length of the base plate of the base material, it can be securely attached to the floor surface without increasing the width of the base material, and the basis weight of the cover material can be made thinner, making it less likely to break even when stepped on and giving it a good appearance. [Brief explanation of the drawings]
[0019] [Figure 1] 1 is an overall perspective view showing a floor trim material according to a first embodiment of the present invention; [Figure 2] 1 is an explanatory cross-sectional view showing a floor trim material according to a first embodiment of the present invention. [Figure 3] 1 is an explanatory cross-sectional view showing a floor trim material according to a first embodiment of the present invention. [Figure 4] FIG. 2 is an explanatory side view showing a modified example of the base material of the floor trim material of the first embodiment of the present invention. [Figure 5] FIG. 2 is an overall perspective view showing a modified example of the floor trim material of the first embodiment of the present invention. [Figure 6] FIG. 2 is an explanatory cross-sectional view showing a modified example of the floor trim material of the first embodiment of the present invention. [Figure 7] FIG. 2 is an overall perspective view showing a floor trim material according to a second embodiment of the present invention. [Figure 8] FIG. 4 is an explanatory cross-sectional view showing a floor trim material according to a second embodiment of the present invention. [Figure 9] FIG. 10 is an explanatory view showing a joint member according to a third embodiment of the present invention. [Figure 10] 10 is an explanatory side view showing the connection state of the base material of the floor trim material of the third embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION
[0020] "First embodiment" A first embodiment of the present invention will be described with reference to Figures 1 to 6. In the figures, reference numeral 1 denotes a cover material, reference numeral 2 denotes a base material, and reference numeral 3 denotes a floor fixing means.
[0021] The present invention is a long interior component that can be placed in a gap created at the joint between flooring materials F placed on the floor surface of a building to cover the gap.
[0022] The floor trim material of the present invention is composed of a pair of cover materials 1 and a base material 2 (see FIG. 1), and the base material 2 can be fixed to the floor surface by floor fixing means 3.
[0023] First, a convex portion 12 consisting of a single protrusion along the longitudinal direction is formed on the underside of the face 11 of the cover material 1. In addition, a decorative layer 11A such as a decorative film can be provided on the upper surface of the face 11 as needed to improve the appearance.
[0024] The cover material 1 can be made of plastic, rubber, metal, etc., and in this embodiment, it is preferable to use PVC (polyvinyl chloride: hard or soft) because it is easy to mold and color (add decoration).The cover material 1 can be manufactured using such a material by extrusion molding, injection molding, etc.
[0025] Furthermore, the edge of the face 11 of the cover material 1 can be placed on the edge of the floor material F. The width of the face 11 is preferably 25 mm or less. If it is larger than 25 mm, it is likely to break when stepped on and will look unattractive. In order to make the width of the face 11 as small as possible, it is preferable that the lapped portion to be placed on is also small, to about a few mm.
[0026] Next, twin walls 22 consisting of two longitudinally extending protrusions are formed in the approximate center of the upper surface of substrate 21 of base material 2. The width of base material 2 is preferably 10 mm or less. As with cover material 1, base material 2 can be produced by extrusion molding, injection molding, or the like using materials such as plastic, rubber, or metal.
[0027] The base material 2 can be fixed to the floor surface by the floor fixing means 3. Specific examples of the floor fixing means 3 include double-sided tape, adhesive, screws, nails, staples, and the like.
[0028] Next, the protrusion 12 can be inserted into the recess 22A between the twin walls 22 of the base material 2 and attached (see FIGS. 2 and 3). In this embodiment, protrusions can be formed on the inner opposing surfaces of the twin walls 22 of the base material 2, and protrusions can also be formed on the outer surface of the protrusion 12 of the cover material 1, so that they fit together when attached, making it difficult for the cover material 1 to come off.
[0029] In this embodiment, the cover material 1 can be made of an elastically deformable soft material, and the face 11 can be biased downward when the cover material is attached to the floor material to increase stability. Examples of soft materials that can be used include soft PVC, thermoplastic elastomers, and rubber-based materials.
[0030] The two walls 22 are provided with notches 22B, allowing the substrate 21 to be cut at the notches 22B. In this embodiment, if necessary, multiple notches 22B may be provided asymmetrically with respect to the longitudinal center of the base material 2. Specifically, as shown in FIG. 4, for example, if the total length is 310 cm, one notch 22B is provided at a predetermined interval from a position tangent to the center line (the dashed line in the figure) located 155 cm from the end, while the other notch 22B is provided at a predetermined interval from a position 20 cm away from the center line. This allows the positions of the notches 22B to be cut to be selected, allowing for adjustment to the desired size required on-site. The base material 2 can also be used as is without cutting it into a single length.
[0031] Furthermore, in this embodiment, through holes 21A are provided in the bottom surface of the base plate 21 at the cutout portions 22B of the base material 2, and fixing screws, nails, or the like can be inserted into these through holes 21A as floor fixing means 3 (see FIGS. 5 and 6). This allows the length in the width direction of the base plate 21 of the base material 2 to be reduced, so that floor fixing means 3 that can be firmly fixed to the floor using screws, nails, or the like, without using double-sided tape or adhesive alone, can be used without interfering with the twin walls 22, which also contributes to reducing the length in the width direction of the front 11 of the cover material 1.
[0032] In this embodiment, the widthwise length of the surface 11 of the cover material 1 is made larger than the widthwise length of the substrate 21 of the base material 2. Since the widthwise length of the substrate 21 is smaller than the gap between the flooring materials F, by satisfying at least this condition, the surface weight 11 can be made thinner, making it less likely to crack when stepped on and also improving its appearance.
[0033] Furthermore, because the width of the substrate 21 of the base material 2 is smaller than the gap between the floor materials F, the floor material F does not step on the side pieces of the substrate 21 of the base material 2, preventing the edges of the floor material F from lifting up, and there is no need to provide notches or the like at the edges of the bottom surface of the floor material F for the side pieces of the substrate 21 to step on. Furthermore, by leaving a small gap between the substrate 21 of the base material 2 and the floor material F, a clearance can be provided to accommodate changes in the gap distance due to expansion and contraction deformation after the floor material F is laid.
[0034] In this embodiment, spacer protrusions 22C can be formed on both side surfaces of the twin walls 22 as needed (see FIGS. 5 and 6). This allows the protruding portion of the spacer protrusions 22C to be used as a ruler that matches the distance between the flooring materials F, and by installing the base material 2 first, the ease of laying the flooring material F can be improved. Furthermore, the spacer protrusions 22C can be made slightly inclined, making it difficult for the base material 2 to slip out of the gap and allowing the spacer protrusions 22C to elastically deform and reduce the load against pressure from the sides due to expansion and contraction deformation after the flooring material F is installed.
[0035] In this embodiment, the upper ends of the twin walls 22 of the base material 2 can be attached in a state where they abut against the lower surface of the front of the cover material 1. By doing so, even if a large load or impact is applied from the upper surface of the front 11, the support force can be improved due to the vertical rigidity of the twin walls 22.
[0036] "Second embodiment" Next, a second embodiment of the present invention will be described with reference to Figures 7 and 8. In this embodiment, the fitting relationship between the protrusions and recesses of the protrusions in the first embodiment is reversed. Specifically, first, twin walls 13 consisting of two longitudinal protrusions are formed on the underside of the face 11 of the cover material 1, and the edge of the face 11 can be placed on the edge of the floor material F.
[0037] In addition, a convex portion 23 consisting of a single protrusion along the longitudinal direction is formed in approximately the center of the upper surface of the substrate 21 of the base material 2, so that this convex portion 23 can be inserted into the recess 13A between the two walls 13 and attached, and a notch 23A is provided in the convex portion 23 so that the substrate 21 can be cut at this notch 23A.
[0038] The length of the face 11 of the cover material 1 in the width direction is made larger than the length of the substrate of the base material 2 in the width direction.
[0039] By configuring it in this way, it is possible to obtain the effect of reducing the basis weight of the cover material, as in the first embodiment. Furthermore, it is also possible to provide through holes in the bottom surface of the substrate 21 in which the floor fixing means 3 can be disposed, or to provide multiple notches 23A at asymmetric positions relative to the center of the base material 2 in the longitudinal direction.
[0040] "Third embodiment" Next, a third embodiment of the present invention will be described with reference to Figures 9 and 10. In this embodiment, multiple base members 2 can be connected together in the longitudinal direction by joint members 4 (see Figure 9, (a) is a top view, (b) and (c) are side views). This allows the longitudinal members to be made compact, improving storage and installation properties.
[0041] Furthermore, by forming a pressing portion 41 at the end of the joint member 4, the joint member 4 and the substrate 21 can be pressed against the floor surface when the floor fixing means 3 is fixed, and the substrate 21 of the base material 2 can be reliably fixed by this joint member 4 even without providing the notch portion as in the first and second embodiments. In this case, the pressing portion 41 can be shaped to avoid the convex portion 23 or twin walls 22 of the base material 2 as appropriate, thereby increasing the area of the substrate 21 that is pressed down.
[0042] Furthermore, in this embodiment, holes 42 can be formed in the joint member 4, and fixing screws, nails, or the like can be inserted into these holes 42 as floor fixing means 3 (see FIG. 10). This allows the width of the substrate 21 of the base material 2 to be reduced, so that floor fixing means 3 that can be firmly fixed to the floor with screws, nails, or the like, without using double-sided tape or adhesive alone, can be used in a position that does not interfere with the protrusions 23 (or the twin walls 22, not shown, in the case where the fitting relationship is opposite), and also contributes to reducing the width of the face 11 of the cover material 1.
[0043] Furthermore, although not shown, spacer protrusions similar to the spacer protrusions 22C can be formed on both side surfaces of the joint member 4.
[0044] Although the present invention is generally configured as described above, it is by no means limited to the illustrated embodiment and various modifications are possible within the scope of the claims. For example, it is preferable that the cross-sectional shapes of the cover material 1 and the base material 2 are both symmetrical, but they can also be asymmetrical if necessary. Furthermore, the floor fixing means 3 can be double-sided tape, adhesive, screws, nails, staples, etc., which can be used alone or in combination depending on the required fixing strength.
[0045] Furthermore, the materials used for the cover material 1 and the base material 2 are not limited to PVC, but may also be resin materials such as polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), ABS resin, ASA resin, polystyrene, and acrylic, or synthetic rubbers such as natural rubber, butyl rubber, and polybutadiene rubber, all of which fall within the technical scope of the present invention. [Explanation of symbols]
[0046] 1 Cover material 11 Find 11A Decorative layer 12 Convex part 13 Double wall 13A Recess 2 Base material 21 PCB 21A through hole 22 Double wall 22A Recess 22B Notch 22C Spacer protrusion 23 Convex part 23A Notch 3 Floor fixing means 4 Joint members 41 Presser foot 42 Hole F. Flooring
Claims
1. A long interior component that can be placed in and cover gaps created at joints between flooring materials arranged on the floor surface of a building, and is composed of a pair of cover material and base material, with the base material being fixed to the floor surface by floor fixing means, The lower surface of the visible part of the cover material has a protrusion formed by a single ridge along the longitudinal direction, and the edge of the visible part can be placed on the edge of the floor material, Approximately in the center of the upper surface of the substrate of the base material, a double wall consisting of two protrusions along the longitudinal direction is formed, and the convex portion can be inserted into the recess between these double walls to be attached, and a notch is provided in the double wall, and the substrate can be cut at this notch. A floor trim material characterized in that the visible width of the cover material is greater than the width of the base material's substrate.
2. A long interior component that can be placed in and cover gaps created at joints between flooring materials arranged on the floor surface of a building, and is composed of a pair of cover material and base material, with the base material being fixed to the floor surface by floor fixing means, The lower surface of the visible portion of the cover material has a double wall formed by two protrusions along the longitudinal direction, and the edge of the visible portion can be placed on the edge of the floor material, A protrusion consisting of a single ridge running along the longitudinal direction is formed approximately in the center of the upper surface of the substrate of the base material, and this protrusion can be inserted into the recess between the two walls and fitted over, and a notch is provided in the protrusion, and the substrate can be cut at this notch, A floor trim material characterized in that the visible width of the cover material is greater than the width of the base material's substrate.
3. The floor trim material according to claim 1 or 2, characterized in that a through hole is provided on the bottom surface of the substrate in the notch of the base material, allowing for the installation of floor fixing means.
4. The floor trim material according to claim 1 or 2, characterized in that a plurality of notches are provided at asymmetrical positions with respect to the longitudinal center of the base material.
5. The floor trim material according to claim 1, characterized in that the upper ends of the twin walls of the base material can be attached to the cover material while abutting against the lower surface of the visible part.
6. The floor trim material according to claim 1, characterized in that spacer protrusions are formed on both sides of the twin walls.
7. A long interior component that can be placed in and cover gaps created at joints between flooring materials arranged on the floor surface of a building, and is composed of a pair of cover material and base material, with the base material being fixed to the floor surface by floor fixing means, Multiple of the aforementioned base materials can be connected to each other in the longitudinal direction by a joint member, A protrusion consisting of a single protrusion along the longitudinal direction or a pair of walls consisting of two protrusions along the longitudinal direction that are in a fitting relationship with each other is formed on the lower surface of the cover member and the opposing surface of the upper surface of the substrate of the base member, and this protrusion can be inserted into a recess between the pair of walls and fitted thereon; A floor trim material characterized in that the visible edge portion of the cover material can be placed on the edge portion of the floor material, and the width direction length of the visible portion is greater than the width direction length of the substrate of the base material.
Citation Information
Patent Citations
Boundary member for floor and construction structure of floor material
JP2011063934A