Chair leg cover, and method for attaching and detaching chair leg cover

Abstract

To provide a chair leg cover which is easily attached to a leg part and hardly falls off from the leg part.SOLUTION: A chair leg cover includes a slide member, a first double-sided adhesive member, a fixing member, a base member, and a second double-sided adhesive member, the fixing member includes at least a needle portion, and when an angle formed by a line connecting a tip of the needle portion and an end portion of the second double-sided adhesive member and a central axis of the needle portion in an assembled state is defined as α, the angle α is 65.8 degrees or more and 84.3 degrees or less.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] TECHNICAL FIELD The disclosure in this application relates to chair leg covers and methods for installing and removing the chair leg covers.

[0002] Furniture leg parts are known that are attached to the legs of furniture such as chairs and tables to prevent damage to the floor when the furniture is placed on the floor. One example of a furniture leg part is flooring felt 100, which is a combination of felt 101 and an adhesive layer 102, as shown in Fig. 1. Many types of flooring felt are available for sale online.

[0003] Flooring felt has an adhesive layer between the felt and the legs, and the adhesive strength of the adhesive layer is what holds the felt to the legs. However, if the felt and legs are attached using only the adhesive layer, there is a problem that the felt is easily peeled off from the legs.

[0004] As another example of a part for a furniture leg, Patent Document 1 discloses a part for a furniture leg that consists of a seat plate, a fixing bracket for fixing the seat plate to furniture, and a cap for covering the seat plate. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3095781 Summary of the Invention [Problem to be solved by the invention]

[0006] As shown in FIG. 4 of Patent Document 1, the furniture leg part described in Patent Document 1 is fixed to the leg by driving a slender fixing metal fitting formed of a nail, screw, or the like into the leg. Therefore, unlike the flooring felt shown in FIG. 1, the furniture leg part is less likely to come off the leg. However, in the furniture leg part described in Patent Document 1, only the fixing metal fitting has the function of fixing the furniture leg part to the leg. Therefore, in the furniture leg part described in Patent Document 1, the strength with which the furniture leg part is fixed to the leg varies depending on the length of the fixing metal fitting driven into the leg.

[0007] However, increasing the length of a fastening fixture to improve the fastening strength of a furniture leg component raises the problem of the fastening fixture being prone to bending when driven into the leg. Furthermore, to minimize bending of the fastening fixture during driving, the user must hold the fastening fixture in their hand so that it is approximately perpendicular to the leg and apply a driving force in the direction of the fastening fixture's central axis. However, in this case, the only part of the furniture leg component that comes into contact with the leg is the tip of the fastening fixture, and the direction can easily change. Therefore, the user must apply a driving force while continuing to hold the furniture leg component so that the fastening fixture is approximately perpendicular to the leg, which makes the installation of the furniture leg component more difficult.

[0008] The present application has been made to solve the above-mentioned problems. After extensive research, the inventors have newly discovered that (1) the components constituting the chair leg covers include a second double-sided adhesive member that adheres to the legs and a fixing member having a needle portion that is driven into the legs, (2) by shortening the length of the needle portion protruding from the second double-sided adhesive member, when the chair leg covers are placed on the legs, the needle portion is prevented from tilting obliquely relative to the legs. In other words, the needle portion can be oriented nearly perpendicular to the legs, and the fixing member can be driven into the legs even when the chair leg covers are tilted, and (3) when the base member and the legs are bonded using the second double-sided adhesive member, the fixing member also functions as an anchor to reduce the lateral shear force applied to the second double-sided adhesive member.

[0009] That is, an object of the disclosure in this application is to provide chair leg covers that are easy to attach to legs, and methods for attaching and removing the chair leg covers. [Means for solving the problem]

[0010] The disclosure of the present application relates to chair leg covers, and methods for attaching and removing the chair leg covers, as described below.

[0011] (1) A chair leg cover, the chair leg cover comprising: a slide member, a first double-sided adhesive member, a fixing member, a base member, and a second double-sided adhesive member; the fixing member includes at least a needle portion, The base member is The chair includes a first surface facing the leg side of the chair, a second surface opposite to the first surface, a needle portion accommodating space for allowing the needle portion to protrude from the first surface, and a wall portion, the wall portion is formed around the second surface, and the second surface and the wall portion form a slide member accommodating space that accommodates a part of the slide member, The slide member is a third surface that is accommodated in the slide member accommodating space and faces the second surface of the base member; a fourth surface that protrudes from the slide member accommodating space and abuts against a floor surface; Including, The first double-sided adhesive member may be arranged to bond the second surface of the base member and the third surface of the slide member, The second double-sided adhesive member may be arranged such that one surface thereof adheres to the first surface of the base member and the other surface thereof adheres to the leg portion; a length of the needle portion is such that the needle portion can penetrate the second double-sided adhesive member and protrude from the second double-sided adhesive member when the slide member, the first double-sided adhesive member, the fixing member, the base member, and the second double-sided adhesive member are assembled; When the angle formed by the line connecting the tip of the needle portion and the end of the second double-sided adhesive member with the central axis of the needle portion in the assembled state is defined as α, the angle α is 65.8 degrees or more and 84.3 degrees or less. Chair leg covers. (2) The fixing member includes a crocodile portion, The second surface of the base member is formed with a crocodile portion accommodating space for accommodating the crocodile portion, The needle portion accommodating space is formed to penetrate from the alligator portion accommodating space to the first surface. The chair leg cover according to (1) above. (3) The outer periphery of the base member is selected from a circle and a regular polygon. The chair leg cover according to (1) above. (4) A notch is formed on the outer periphery of the first surface of the base member, into which a removal member for the chair leg cover is inserted. The chair leg cover according to (1) above. (5) A method for attaching the chair leg cover according to any one of (1) to (4) above to the legs, the method comprising: a positioning step of positioning the chair leg cover so that the tip of the needle portion and the second double-sided adhesive member abut against the leg portion; a chair leg cover attaching step of attaching the chair leg covers to the legs by pressing the chair leg covers arranged in the arranging step toward the legs; Contains Installation method. (6) A method for removing a chair leg cover attached to a leg from the chair leg, comprising: The removal method is carried out after carrying out the attachment method described in (5) above using the chair leg cover described in (4) above, The removal method includes: an engaging step of engaging a removal member with the notch of the chair leg cover; a removing step of removing the chair leg cover from the leg portion by operating a removing member; Contains How to remove. [Effects of the Invention]

[0012] The chair leg covers disclosed in this application allow the needles to be driven into the legs even when the tips of the needles of the chair leg covers and the second adhesive member are in contact with the legs, i.e., even if the central axis of the needles is misaligned from the legs in a substantially perpendicular direction. The fixing members (needles) function as anchors to reduce the lateral shear force on the second double-sided adhesive member, preventing a decrease in the functionality of the second double-sided adhesive member, and as a result, the chair leg covers are less likely to fall off the legs. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a schematic diagram of a conventional flooring felt 100. [Figure 2] Fig. 2A is a schematic side view for explaining the components that make up the chair leg cover 1, showing the components in an unassembled state, and Fig. 2B is a schematic cross-sectional view showing the components in an assembled state. [Figure 3] FIG. 3 is a top view for explaining the outline of the base member 5. As shown in FIG. [Figure 4] Figure 4A is a schematic side view illustrating the angle α when the tip 42a of the needle portion 42 and the second double-sided adhesive member 6 are positioned so as to abut against the leg portion 7, and Figure 4B is a schematic side view showing the state in which the chair leg cover 1 has been attached to the leg portion 7. [Figure 5] 5A to 5C are schematic diagrams for explaining the anchor effect of the needle portion 42. FIG. [Figure 6] FIG. 6 is a schematic diagram for explaining an optional configuration example in which the chair leg cover 1 can be employed. [Figure 7] FIG. 7 is a photograph substituted for a drawing, which is a photograph of the chair leg cover 1 produced in Example 1. [Figure 8] Figure 8 is a photograph used in place of a drawing. Figure 8A is a photograph of a chair leg cover 1 with a needle portion 42 protruding from the second adhesive member 6 having a length of 1 mm placed on wood, and Figure 8B is a photograph after it has been hammered in. [Figure 9]Figure 9 is a photograph used in place of a drawing. Figure 9A is a photograph of a chair leg cover 1 with a needle portion 42 protruding from the second adhesive member 6 having a length of 4.5 mm placed on wood, and Figure 9B is a photograph after it has been hammered in. [Figure 10] FIG. 10 is a photograph used as a substitute for a drawing, and is a photograph for explaining an outline of an experiment for examining the effect of the chair leg cover 1 driven into wood against a lateral load in Example 3. DETAILED DESCRIPTION OF THE INVENTION

[0014] The chair leg covers and the methods for attaching and removing the chair leg covers disclosed in this application are described in detail below. Note that the position, size, range, etc. of each component shown in the drawings may not represent the actual position, size, range, etc., for ease of understanding. Therefore, the disclosure of this application is not necessarily limited to the position, size, range, etc., disclosed in the drawings.

[0015] In addition, in this specification, (1) A numerical range expressed using "~" means a range that includes the numbers written before and after "~" as the lower and upper limits. (2) Numerical values, numerical ranges, and qualitative expressions (e.g., expressions such as "same" and "the same") indicate numerical values, numerical ranges, and properties that include errors generally accepted in the relevant technical field. (3) When describing something as "approximately ____ shape," it includes not only the exact ____ shape, but also a shape that can be understood as roughly ____ shape. This is interpreted as:

[0016] (Embodiment of chair leg cover) The chair leg cover 1 according to the embodiment will be described with reference to Figures 2 to 4. Figure 2A is a schematic side view illustrating the components constituting the chair leg cover 1, showing the components in an unassembled state. Figure 2B is a schematic cross-sectional view showing the components assembled. Figure 3 is a top view illustrating the outline of the base member. Figure 4A is a schematic side view illustrating the angle α when the tip 42a of the needle part 42 and the second double-sided adhesive member 6 are positioned so as to abut against the leg part 7, and Figure 4B is a schematic side view showing the chair leg cover 1 attached to the leg part 7.

[0017] The chair leg cover 1 according to the embodiment includes a sliding member 2, a first double-sided adhesive member 3, a fixing member 4, a base member 5, and a second double-sided adhesive member 6.

[0018] The fixing member 4 includes a crocodile portion 41 and a needle portion 42 .

[0019] In the example shown in FIG. 2, the base member 5 is (1) A first surface 51 facing the leg 7 of the chair and a second surface 52 opposite to the first surface 51; (2) A wall portion 53 is formed around the second surface 52, and the second surface 52 and the wall portion 53 form a slide member accommodating space 54 that accommodates a part of the slide member 2, (3) The second surface 52 is formed with a crocodile portion accommodating space 55 for accommodating the crocodile portion 41, (4) A needle portion accommodating space 56 is formed, which penetrates from the alligator portion accommodating space 55 to the first surface 51 and allows the needle portion 42 to protrude from the first surface 51. are.

[0020] It is preferable that alligator portion accommodating space 55 is designed so that alligator portion 41 and second surface 52 are substantially flat when fixing member 4 is inserted. It is also preferable that needle portion accommodating space 56 is formed substantially in the center of first surface 51 and second surface 52.

[0021] 3, the outer periphery of the base member 5 is formed in a substantially circular shape. When the outer periphery of the base member 5 is formed in a substantially circular shape and the needle accommodating space 56 is formed in the substantially center of the first surface 51 and the second surface 52, the angle α when the chair leg cover 1 (described later) is placed on the leg 7 is constant regardless of the placement direction.

[0022] Alternatively, although not shown, the outer periphery of the base member 5 may be formed as a regular polygon, such as a triangle, a rectangle, a pentagon, a hexagon, a heptagon, an octagon, a nonagon, a decagon, an eleventh, or a dodecagon. Even when the outer periphery of the base member 5 is formed as a regular polygon, the angle α remains constant when any one side of the base member 5 is placed in contact with the leg 7. Furthermore, when the outer periphery of the base member 5 is a regular polygon, the portion of the outer periphery that contacts the leg 7 is longer than when the outer periphery is circular, making it less likely for the chair leg cover 1 to shift position after being placed on the leg 7. This improves the convenience of attaching the chair leg cover 1 to the leg 7. When the outer periphery of the base member 5 is a regular polygon, the wall portion 53 may also be formed as a regular polygon, and the outer periphery of the slide member 2 may also be formed as a regular polygon. As mentioned above, it is preferable that the needle accommodating space 56 is formed approximately in the center of the first surface 51 and the second surface 52. Alternatively, however, the needle accommodating space 56 does not have to be formed approximately in the center of the first surface 51 and the second surface 52 as long as the angle α when the chair leg cover 1 is placed on the leg 7 is within the range described below.

[0023] 2 and 3, the outer periphery of the crocodile portion 41 is formed in a substantially circular shape, and the inner edge of the crocodile portion accommodating space 55 is also formed in a substantially circular shape. Alternatively, although not shown, the outer periphery of the crocodile portion 41 and the inner edge of the crocodile portion accommodating space 55 may be formed in a non-circular shape such as an ellipse or a polygon.

[0024] The slide member 2 includes a third surface 21 accommodated in the slide member accommodating space 54 and facing the second surface 52 of the base member 5, and a fourth surface 22 protruding from the slide member accommodating space 54 and abutting against the floor surface.

[0025] The first double-sided adhesive member 3 can be arranged to bond the second surface 52 of the base member 5 and the third surface 21 of the slide member 2 together.

[0026] The second double-sided adhesive member 6 can be arranged so that one surface is adhered to the first surface 51 of the base member 5 and the other surface is adhered to the leg portion 7. The shape and size of the second double-sided adhesive member 6 may be the same as or different from the first surface 51 of the base member 5, but it is preferable that they are the same from the viewpoint of obtaining greater adhesive strength.

[0027] The length of the needle portion 42 is the length that protrudes from the second double-sided adhesive member 6 adhered to the first surface 51 of the base member 5 when the slide member 2, the first double-sided adhesive member 3, the fixing member 4, the base member 5, and the second double-sided adhesive member 6 are assembled.

[0028] As shown in FIG. 4A , when the components constituting the chair leg cover 1 are assembled and the tips 42a of the needles 42 and the second double-sided adhesive member 6 are positioned so as to abut against the leg portions 7, the angle formed between the needles 42 and the leg portions 7 is defined as α. Alternatively, the angle α may be defined as the angle formed between the central axis C1 of the needles 42 and a line connecting the tips 42a of the needles 42 and the end portions 61 (the portions abutting against the leg portions 7) of the second double-sided adhesive member 6. If the outer periphery of the base member 5 is a regular polygon, the end portions 61 of the second double-sided adhesive member 6 may be any side of the regular polygonal second double-sided adhesive member 6. If the angle α is too large, in other words, if the length of the needles 42 protruding from the second double-sided adhesive member 6 is too short, the needles 42 will have difficulty functioning as anchors. Examples of the angle α include, but are not limited to, 84.3 degrees or less, 84 degrees or less, 83 degrees or less, 82 degrees or less, 81 degrees or less, 80 degrees or less, 79 degrees or less, 78 degrees or less, 77 degrees or less, 76 degrees or less, and 75 degrees or less. On the other hand, if the angle α is too small, the needle 42 is likely to bend when the chair leg cover 1 is fastened to the leg 7. Examples of the angle α include, but are not limited to, 65.8 degrees or more, 66 degrees or more, 67 degrees or more, 68 degrees or more, 69 degrees or more, 70 degrees or more, 71 degrees or more, 72 degrees or more, 73 degrees or more, and 74 degrees or more. Note that the angle α listed above is merely exemplary. For example, the angle α may be set based on any value selected from the range of 65.8 degrees to 84.3 degrees, with one or two decimal places.

[0029] The material for the sliding member 2 is not particularly limited as long as it will not collapse even when a person sits on a chair with the chair leg cover 1 attached. Examples of suitable materials include, but are not limited to, plastic materials such as fluororesin and polyurethane, rubber, wood, and metal. The sliding member 2 may be formed from a single material or a combination of multiple materials. For example, a base material may be formed from any material, and a material with desired properties may be coated or attached to the base material. For example, if the fourth surface 22 is formed by coating the base material with a material that is slippery on the floor, the chair leg cover 1 functions as a sliding member on the floor. On the other hand, if the fourth surface 22 is formed by coating a material that is not slippery on the floor, the chair leg cover 1 functions as a sliding member on the floor. Examples of materials that can be attached include felt and resin films such as fluororesin and polyurethane. The desired material can be selected based on its slipperiness on the floor.

[0030] As described above, a portion of the sliding member 2 (the portion on the third surface 21 side) is accommodated in the sliding member accommodating space 54. Therefore, even if a force is applied to the sliding member 2 in the lateral direction (direction X substantially perpendicular to the central axis C2 of the leg as shown in FIG. 4B), the sliding member 2 will not go beyond the wall portion 53 of the base member 5 and become detached. Therefore, it is sufficient that the first double-sided adhesive member 3 has at least an adhesive strength sufficient to prevent the sliding member 2 from falling out of the sliding member accommodating space 54 when the orientation of the chair leg cover 1 is changed. Although not limited thereto, the first double-sided adhesive member 3 may be a known double-sided adhesive tape such as an acrylic emulsion.

[0031] The fixing member 4 (the crocodile portion 41 and the needle portion 42) is preferably made of a metal material commonly used in the art. Examples of metal materials commonly used in the art include, but are not limited to, steel, brass, and stainless steel. The fixing member 4 may also be plated with nickel or the like, if necessary.

[0032] The base member 5 is a member that bears the load when the chair is moved after the chair leg covers 1 are attached to the legs. Therefore, it is preferable that the base member 5 is made of a material that is relatively hard. Examples of such materials include, but are not limited to, resins such as polycarbonate, acrylic resin, nylon, polyamide, and polyether ether ketone (PEEK).

[0033] The second double-sided adhesive member 6 has the function of fixing the chair leg cover 1 to the leg 7. Therefore, it is preferable that the material be one that can strongly bond the first surface 52 of the chair leg cover 1 to the leg 7 even when a force is applied in the lateral direction X. Although not limited thereto, examples of materials for forming the second double-sided adhesive member 6 include acrylic emulsion-based adhesives, rubber-based adhesives, and silicone-based adhesives.

[0034] The chair leg cover 1 according to the embodiment has the following advantages. (Effect 1) When the chair leg cover 1 disclosed in the present application is used, the needle 42 can be driven into the leg 7 even when the tip 42a of the needle 42 and the second double-sided adhesive member 6 are in contact with the leg 7, in other words, even when the direction of the central axis C1 of the needle 42 is deviated from the approximately vertical direction. Therefore, when attaching the chair leg cover 1 to the leg 7, the user does not need to hold the needle 42 so that it is approximately vertical to the leg 7, and can apply the driving force P with the needle 42 and the second double-sided adhesive member 6 in contact with the leg 7. This significantly improves the convenience of the attachment work. (Effect 2) The chair leg cover 1 disclosed in the present application is fixed to the leg 7 by a part of the needle portion 42 driven into the leg 7 and by the second double-sided adhesive member 6. Therefore, when the chair leg cover 1 is fixed to the leg 7 with a desired force, the needle portion 42 can be made shorter than when the chair leg cover 1 is fixed only by the needle portion 42, and therefore there is less risk of the needle portion 42 bending when the chair leg cover 1 is fixed to the leg 7. (Effect 3) The anchoring effect of the needles 42 will be described with reference to FIG. 5. For ease of understanding, the chair leg cover 1 shown in FIG. 5 has been omitted for clarity. As shown in FIG. 5A, assume that the base member 5 and the leg 7 are fixed with the second double-sided adhesive member 6 without using the fixing member 4. In this case, as shown in FIG. 5B, when a force (shear force) in the lateral direction X is applied to the second double-sided adhesive member 6, the second double-sided adhesive member 6 shifts. As a result, the shear force is also applied to the adhesive surface between the second double-sided adhesive member 6 and the base member 5 and / or the adhesive surface between the second double-sided adhesive member 6 and the leg 7, making the adhesive surfaces more likely to peel. On the other hand, as shown in FIG. 5C, in the chair leg cover 1 according to this embodiment, the needles 42 of the fixing member 4 are driven into the leg 7 while penetrating the second double-sided adhesive member 6. Therefore, unlike the example shown in FIG. 5B, the second double-sided adhesive member 6 is less likely to shift laterally even when a force in the lateral direction X is applied. As a result, even if the characteristics of the second double-sided adhesive member 6 shown in FIGS. 5B and 5C are identical, the shear force on the adhesive surface between the second double-sided adhesive member 6 and the base member 5 and / or the adhesive surface between the second double-sided adhesive member 6 and the leg 7 in FIG. 5C is smaller, making the adhesive surfaces less likely to peel. As described above, the needles 42 of the chair leg cover 1 according to the embodiment synergistically fulfill two different functions: the fixing function of fixing the chair leg cover 1 to the leg 7 and the anchoring function of reducing the shear force on the second double-sided adhesive member 6. Because the needles 42 are shorter than conventional designs, the fixing effect of the needles 42 alone is smaller than conventional designs. However, the anchoring effect significantly improves the fixing effect of the second double-sided adhesive member 6, thereby firmly fixing the chair leg cover 1 to the leg 7. In other words, the chair leg cover 1 according to the embodiment combines the needles 42 and the second double-sided adhesive member 6, which are arranged so that the needles 42 penetrate through them, to achieve a significant synergistic effect compared to when either is used alone.

[0035] (Example of optional configuration in which chair leg cover 1 can be adopted) Next, an optional configuration example in which the chair leg cover 1 can be used will be described with reference to Fig. 6. Fig. 6 is a schematic side view showing the state in which the chair leg cover 1 is attached to the leg 7.

[0036] A notch 57 may be formed on the outer periphery of the first surface 51 of the base member 5 of the chair leg cover 1 to allow insertion of a removal tool 8 for the chair leg cover 1. The removal tool 8 may be any thin, flat-head screwdriver, for example. The size of the notch 57 is not particularly limited as long as it can be inserted with a known flat-head screwdriver and applied force using the principle of leverage to remove the chair leg cover 1 from the leg 7. The width of the tip of a flat-head screwdriver is 0.6 mm to 1.2 mm according to the JIS standard. Therefore, the notch 57 should be formed so that a gap of approximately 1.5 mm is created between the leg 7 and the chair leg cover 1 when the chair leg cover 1 is attached to the leg 7. While not limited, the notch should be formed on the outer periphery of the first surface 51 toward the second surface 52 to a depth of approximately (1.5 - a) mm, where a is the thickness of the second double-sided adhesive member 6 (mm). Of course, the notch may be shorter than (1.5 - a) mm. Furthermore, there is no particular limitation on the depth of the cutout portion 57 from the outer peripheral surface of the base member 5 toward the center, as long as it is within a range that allows sufficient insertion of the removal member 8. Although not limited thereto, it may be, for example, about 1 mm to 2 mm.

[0037] When the chair leg cover 1 has the cutout portion 57, the chair leg cover 1 attached to the leg portion 7 can be easily removed.

[0038] The chair leg cover 1 and optional additional configuration examples described above are merely examples of the chair leg cover 1 and are not limited to these examples. Other components may be added or removed within the scope of the technical concept disclosed in this application. For example, in the example shown in FIG. 2 , the fixing member 4 is formed of the crocodile portion 41 and the needle portion 42. Alternatively, the fixing member 4 may be formed only with the needle portion 42, and the portion of the needle portion 42 opposite the tip 42a may be fixed to the needle portion accommodating space 56 of the base member 5. In this case, the crocodile portion accommodating space 55 may not be formed. Furthermore, the needle portion accommodating space 56 may have at least a protrusion hole formed on the first surface 51 side so that the needle portion 42 can protrude from the first surface 51. The needle portion accommodating space 56 may or may not extend through to the second surface 52.

[0039] (Embodiment of mounting method) Next, an attachment method according to an embodiment will be described with reference to Fig. 4. The attachment method is carried out using the chair leg cover 1 according to the embodiment described above and any of the optional additional configuration examples thereof.

[0040] The installation method is (1) a placement step of placing the chair leg cover 1 so that the tip 42a of the needle portion 42 and the second double-sided adhesive member 6 abut against the leg portion 7 (see FIG. 4A); (2) A chair leg cover attaching step of attaching the chair leg covers 1 to the legs 7 by pressing P the chair leg covers 1 arranged in the arranging step toward the legs 7 (see FIGS. 4A and 4B).

[0041] The attachment method has the same effects as (Effect 1) and (Effect 2) achieved by the chair leg cover 1 according to the above-described embodiment.

[0042] (Embodiment of Removal Method) Next, a removal method according to the embodiment will be described with reference to Fig. 6. The removal method is carried out after the above-described attachment method is carried out using the chair leg cover 1 having the above-described cutout portion 57.

[0043] The removal method is (1) an engagement step of engaging the removal member 8 with the notch 57 of the chair leg cover 1 (see FIG. 6); (2) a removal step of removing the chair leg cover 1 from the leg 7 by operating the removal member 8; Although the removal process is not shown in the drawings, the chair leg cover 1 can be removed from the leg 7 by twisting a removal member 8 such as a flathead screwdriver or by using the principle of leverage.

[0044] As for the removal method, since the chair leg cover 1 is provided with the cutout portion 57, the chair leg cover 1 attached to the leg portion 7 can be easily removed.

[0045] The following examples are provided to specifically explain the embodiments disclosed in the present application, but these examples are merely for the purpose of explaining the embodiments and are not intended to limit or restrict the scope of the invention disclosed in the present application.

[0046] Example 1 The chair leg cover 1 was made using the following materials. (1) Slide member Polyurethane resin was used as the base material, and a fluorine film was attached to the surface. (2) Fixing member The diameter of the crocodile portion 41 was 10.9 mm, and the thickness of the needle portion 42 was 0.9 mm. The material was steel wire, which was nickel-plated. Two types of fixing members were produced with needle portions 42 of different lengths so that the lengths of the needle portions 42 protruding from the second double-sided adhesive member 6 when assembled were 1 mm and 4.5 mm. (3) Base material The second surface 52 was made of polycarbonate and had a wall 53 around it with a height of 1.8 mm. (4) First double-sided adhesive member and second double-sided adhesive member An acrylic emulsion adhesive was used, with a thickness of 0.8 mm.

[0047] The produced chair leg cover 1 is shown in Figure 7. The top part of Figure 7 shows, from left to right, the sliding member, fixing member, base member, and first and second double-sided adhesive members. The bottom part of Figure 7 shows the chair leg cover 1 assembled from these members.

[0048] <Example 2> The chair leg cover 1 produced in Example 1 was placed on a piece of wood (ash). Figure 8A is a photograph of the chair leg cover 1 when placed, with the needles 42 protruding from the second adhesive member 6 having a length of 1 mm. Since the diameter of the second double-sided adhesive member 6 is 20 mm, the angle α when the needles 42 protruding from the second adhesive member 6 have a length of 1 mm is 84.3 degrees. Figure 9A is a photograph of the chair leg cover 1 when the needles 42 protruding from the second adhesive member 6 have a length of 4.5 mm, with the angle α being 65.8 degrees.

[0049] Next, when a pressure was applied from above by hand to the chair leg cover 1 shown in Figures 8A and 9A, the needle portion 42 was able to be driven into the wood without bending, as shown in Figures 8B and 9B.

[0050] Example 3 Next, an experiment was conducted to examine the effect of the chair leg covers 1 hammered into wood against lateral loads. Figure 10 shows an outline of the experiment. First, as shown in Figure 10A, the chair leg covers 1 (with angles α of 65.8 degrees and 84.3 degrees) manufactured in Example 1 were hammered into wood (ash). Next, as shown in Figure 10B, the chair leg covers 1 were positioned in the holes of a tensile metal plate and placed in a tensile tester. Using the tensile tester, a load was applied so that the chair leg covers 1 could move laterally relative to the wood. In Example 3, the load (maximum load (N)) at which the chair leg covers 1 peeled from the wood and the displacement (amount of lateral displacement of the second double-sided adhesive member) when a load of 60 N was applied were measured. Note that 60 N corresponds to the force required to displace a chair 50 cm per second with a force of 120 kg. As a comparative example, a chair leg cover without the fixing member assembled (i.e., a needle portion of 0 mm) was used.

[0051] Table 1 shows the experimental results. [Table 1]

[0052] As is clear from the results in Table 1, the longer the needles, the greater the maximum load. These results confirm that the needles driven into the wood make the chair leg covers less likely to fall off the wood. Meanwhile, even when the needles protruded only 1 mm, the displacement of 60 N was less than one-fifth of that without needles. A small displacement means that the second double-sided adhesive member 6 shifted less laterally. In other words, even when a large lateral load was applied while the chair leg covers were in use, the chair leg covers were less likely to fall off the legs and functioned effectively.

[0053] From the above results, it has been confirmed that the chair leg cover disclosed in the present application, by setting the length of the needle portion protruding from the second double-sided adhesive member to a predetermined length, simultaneously performs the following functions: (1) a fixing function that allows the cover to be easily driven into wood without bending and makes it difficult for the cover to fall off the wood, and (2) an anchor function that prevents the second double-sided adhesive member 6 from shifting laterally.

[0054] Furthermore, the chair leg covers 1 produced in the examples have cutouts (the distance between the base member 5 and the wood is approximately 1.5 mm, and the depth toward the center is approximately 1.5 mm) as shown in Figure 6. It was confirmed that the chair leg covers could be easily removed from the wood by inserting a flathead screwdriver into the cutouts. [Industrial Applicability]

[0055] The chair leg covers disclosed in the present application can be easily attached to the legs of chairs and are difficult to fall off, and are therefore useful in the furniture industry. [Explanation of symbols]

[0056] 1...chair leg cover, 2...sliding member, 21...third surface, 22...fourth surface, 3...first double-sided adhesive member, 4...fixing member, 41...crocodile portion, 42...needle portion, 42a...tip of needle portion, 5...base member, 51...first surface, 52...second surface, 53...wall portion, 54...sliding member accommodating space, 55...crocodile portion accommodating space, 56...needle portion accommodating space, 57...cutout portion, 6...second double-sided adhesive member, 61...end of second double-sided adhesive member, 7...leg portion, 8...removal member, 100...flooring felt, 101...felt, 102...adhesive layer

Claims

1. A chair leg cover, comprising: a slide member, a first double-sided adhesive member, a fixing member, a base member, and a second double-sided adhesive member; the fixing member includes at least a needle portion, The base member is The chair includes a first surface facing the leg of the chair, a second surface opposite to the first surface, a needle accommodating space for allowing the needle to protrude from the first surface, and a wall portion, the wall portion is formed around the second surface, and the second surface and the wall portion form a slide member accommodating space that accommodates a part of the slide member, The slide member is a third surface that is accommodated in the slide member accommodating space and faces the second surface of the base member; a fourth surface that protrudes from the slide member accommodating space and abuts against a floor surface; Including, The first double-sided adhesive member may be arranged to bond the second surface of the base member and the third surface of the slide member, The second double-sided adhesive member may be arranged such that one surface thereof adheres to the first surface of the base member and the other surface thereof adheres to the leg portion; a length of the needle portion is such that the needle portion can penetrate the second double-sided adhesive member and protrude from the second double-sided adhesive member when the slide member, the first double-sided adhesive member, the fixing member, the base member, and the second double-sided adhesive member are assembled; When the angle formed by the line connecting the tip of the needle portion and the end of the second double-sided adhesive member with the central axis of the needle portion in the assembled state is defined as α, the angle α is 65.8 degrees or more and 84.3 degrees or less. Chair leg covers.

2. the fixing member includes a crocodile portion; The second surface of the base member is formed with a crocodile portion accommodating space for accommodating the crocodile portion, The needle portion accommodating space is formed to penetrate from the alligator portion accommodating space to the first surface. The chair leg cover of claim 1.

3. The outer periphery of the base member is selected from a circle and a regular polygon. The chair leg cover of claim 1.

4. The base member has a notch formed on the outer periphery of the first surface for inserting a removal member for the chair leg cover. The chair leg cover of claim 1.

5. A method for attaching the chair leg cover according to any one of claims 1 to 4 to a leg, the method comprising: a positioning step of positioning the chair leg cover so that the tip of the needle portion and the second double-sided adhesive member abut against the leg portion; a chair leg cover attaching step of attaching the chair leg covers to the legs by pressing the chair leg covers arranged in the arranging step toward the legs; Contains Installation method.

6. A method for removing a chair leg cover attached to a leg from the chair leg, comprising: The removal method is carried out after the attachment method of claim 5 is carried out using the chair leg cover of claim 4, The removal method includes: an engaging step of engaging a removal member with the notch of the chair leg cover; a removing step of removing the chair leg cover from the leg portion by operating a removing member; Contains How to remove.

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