Bed fastener

Abstract

Provided is a futon fastener that fixes the displacement of the core material within the side fabric of the futon without making needle holes in the side fabric, and can be fixed at any part of the futon, not limited to the end of the futon. 【Solution means】 The futon fastener 101 according to the present disclosure includes a cap 1 having a recess 2 and an elastic member 3 that can be fitted into the opening 5 of the recess 2 by an elastic restoring force. The cap 1 has an inward overhang 7 on the entire or a part of the circumference of the opening 5 so that the fitted elastic member 3 does not come off. The recess 2 of the cap 1 has a central portion that retreats deeper than the opening 5. The elastic member 3 can be curved or bent so that its central portion is located deeper than the opening 5 while maintaining the elastic restoring force in a state where it is fitted into the opening 5.

Description

Technical Field

[0001] The present invention relates to a bedding fastener for preventing displacement of the filling material in a futon.

Background Art

[0002] In a feather futon, there has been a problem that feathers, which are filling materials packed inside the side fabric of the futon, are likely to move, and deviate from a state where the feathers are uniformly arranged over the entire side fabric and become locally concentrated in a part thereof. For this reason, every time a feather futon is used, a troublesome operation for eliminating the deviation of the feathers has been required.

[0003] On the other hand, fasteners for fastening two or more types of bedding, such as a comforter and a mattress, or a comforter and a blanket, so that they do not shift relative to each other have been conventionally known (for example, Patent Documents 1 to 10). Among these documents, the fasteners described in Patent Documents 1, 2, 9, and 10 have a pin-fastening structure in which needles or the like are pierced into both of the two types of bedding for fastening, and the other Patent Documents 3, 4, 5, 6, 7, and 8 have a clip-like structure in which the ends of the two types of bedding are clamped together by an elastic force for fastening. Therefore, even if these fasteners are hypothetically diverted for the purpose of preventing the deviation of the filling material inside the side fabric of a feather futon or the like, only a needle hole can be opened in the side fabric, or otherwise only the ends can be fastened.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Patent Document 6

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a futon fastener that fixes the displacement of the inner material within the side fabric of the futon at an arbitrary position, not limited to the end of the futon, without making needle holes in the side fabric. [Means for Solving the Problems]

[0006] To achieve the above object, a first aspect of the present invention is a futon fastener, comprising: a cap having a recess; and an elastic member that can be fitted into the opening of the recess by an elastic restoring force. The cap has an inwardly projecting portion on the entire circumference or a part of the opening so that the fitted elastic member does not come off. The recess of the cap has a central portion that retreats deeper than the opening. The elastic member is curved or bendable so that its central portion is located deeper than the opening while maintaining the elastic restoring force in a state where it is fitted into the opening.

[0007] According to this configuration, for example, turn the caps upside down (i.e., the openings facing upward), arrange them at intervals on the floor, spread the futon flat so as to cover them, and press the elastic member against a part of the cap. Then, with the futon sandwiched, the elastic member is fitted into the opening of the concave portion of the cap. When fitting, the elastic member is curved or bent so that the central portion of the elastic member is located deeper than the opening of the cap. As a result, the fitted elastic member does not come out of the concave portion of the cap by disengaging the inward protruding portion due to its elastic restoring force, and maintains the force for sandwiching the futon. In this way, by sandwiching the futon from the front and back at various places on the futon, movement of the core material within the side fabric of the futon is suppressed. The positions for sandwiching the futon from the front and back are not limited to the ends of the futon. Also, it is not necessary to make needle holes in the side fabric. The elastic member can be released from the cap by releasing the elastic restoring force by bending or curving it in the reverse direction using, for example, a hook.

[0008] The second aspect of the present invention is the futon fastener according to the first aspect, wherein the elastic member has a pair of elastic bodies that can elastically expand and contract, and a connecting portion that rotatably connects the base end portions of the pair of elastic bodies to each other. Further, the elastic member can be bent so that the central portion of the elastic member is located deeper than the opening when the pair of elastic bodies rotate relative to each other.

[0009] According to this configuration, the elastic member can be easily bent.

[0010] The third aspect of the present invention is the futon fastener according to the second aspect, wherein each of the pair of elastic bodies has a curved linear elastic body in a "C" shape having both end portions sandwiching a gap at the base end portion. Further, the connecting portion has a shaft body that rotatably connects each of the pair of elastic bodies at both end portions.

[0011] According to this configuration, by pressing the connecting portion of the elastic member toward the central portion of the concave portion of the cap, the elastic member can be easily fitted into the opening of the cap. Also, an easily bendable elastic member can be easily manufactured.

[0012] According to a fourth aspect of the present invention, there is provided a futon fastener according to the second or third aspect, further comprising a mounting tool for fitting the elastic member into the opening of the cap. The mounting tool has a main body portion and a movable portion. The main body portion has a "V"-shaped groove on its head that can accommodate the elastic member in a bent state, and has a through hole that opens at the center of the bottom of the "V"-shaped groove. The movable portion has a connecting portion holding portion on its head that can elastically hold the connecting portion of the elastic member, and is movable through the through hole of the main body portion. Further, the main body portion further has a restraining portion that abuts against the movable portion to prevent the movable portion from retreating so that the movable portion does not retreat from the position where the connecting portion of the elastic member placed in the "V"-shaped groove is held. The mounting tool further has a biasing member that biases the movable portion against the restraining portion by an elastic restoring force.

[0013] According to this configuration, the elastic member is placed in the "V"-shaped groove of the main body portion of the mounting tool in a bent state, the connecting portion of the elastic member is elastically held by the connecting portion holding portion of the movable portion, the head of the main body portion is directed toward the concave portion of the cap, and the movable portion is pressed toward the concave portion, whereby the elastic member can be easily fitted into the opening of the cap.

[0014] According to a fifth aspect of the present invention, there is provided a futon fastener according to any one of the first to third aspects, further comprising a hook for removing the elastic member from the cap by lifting the central portion of the elastic member fitted into the opening of the cap.

[0015] According to this configuration, the elastic member fitted into the opening of the cap can be easily removed from the cap. The hook may be separate from or integral with the mounting tool according to the fourth aspect.

Effects of the Invention

[0016] According to the present invention as described above, a futon fastener is realized that fixes the displacement of the core material within the side fabric of the futon at any part, not limited to the end of the futon, without making needle holes in the side fabric.

Brief Description of the Drawings

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Best Mode for Carrying Out the Invention

[0018] FIG. 1 is a perspective view illustrating the configuration of a futon fastener according to an embodiment of the present invention. The futon fastener 101 in the illustrated example has a cap 1 and an elastic member 3. The cap 1 has a recess 2, and the elastic member 3 can be fitted into the opening 5 of the recess 2 by its elastic restoring force. In FIG. 1, the cap 1 having a rotating body shape is shown with a quarter portion along the circumference cut out in order to illustrate its cross-sectional structure.

[0019] The cap 1 has an inward projecting portion 7 that projects inward over the entire circumference of the opening 5 so that the fitted elastic member 3 does not come off. In the illustrated example, the cap 1 is made of aluminum, and the inward projecting portion 7 is formed by winding up the opening edge of the cap 1 inward. The recess 2 of the cap 1 has a central portion that retreats deeper (downward in the figure) than the opening 5. The elastic member 3 is bendable so that its central portion (corresponding to the connecting portion 11 in the illustrated example) is located deeper than the opening 5 while maintaining its elastic restoring force in a state where it is fitted into the opening 5.

[0020] The elastic member 3 has a pair of elastic bodies 9 that can elastically expand and contract, and a connecting portion 11 that rotatably connects the base end portions of the pair of elastic bodies 9 to each other. The elastic member 3 is bendable so that the central portion of the elastic member 3 (corresponding to the connecting portion 11 in the illustrated example) is located deeper than the opening 5 when the pair of elastic bodies 9 rotate relative to each other.

[0021] FIG. 2 is a plan view of the elastic member 3. Each of the pair of elastic bodies 9 has a linearly elastic body curved in a "C" shape having both ends with a gap therebetween at the base end portion. The connecting portion 11 has a shaft body 13 to which each of the pair of elastic bodies 9 is rotatably connected at both ends. Enlarged diameter portions 15 are connected to both ends along the axis of the shaft body 13 so that the pair of elastic bodies 9 do not come off the shaft body 13. A spacer 17 is disposed between those portions so that the portions of the pair of elastic bodies 9 rotatably connected to the shaft body 13 maintain a distance from each other.

[0022] The pair of elastic bodies 9 can be elastically deformed as illustrated by the dotted line in FIG. 2, and is required to exhibit an elastic restoring force of an appropriate strength against the elastic deformation. For this reason, for example, a metal wire, such as a steel wire, which can be elastically bent and has a certain rigidity, is used for the pair of elastic bodies 9. The shaft body 13, the enlarged diameter portion 15, and the spacer 17 included in the connecting portion 11 are made of, for example, metal, synthetic resin, or wood.

[0023] FIGS. 3 to 6 are use process diagrams illustrating the usage method of the futon fastener 101. To use the futon fastener 101, first, as illustrated in FIG. 3, turn the cap 1 over (that is, the opening 5 faces upward) and arrange them at intervals on the floor, and spread the futon 19 flat so as to cover them. The futon 19 is, as an example, a cotton futon.

[0024] Next, as illustrated in FIG. 4, put the futon 19 into the recess 2 of the cap 1. Next, as illustrated in FIG. 5, push the pair of elastic bodies 9 of the elastic member 3 into the recess 2 through the futon 19. The pair of elastic bodies 9 can pass through the opening 5 and enter the recess 2 by opening downward.

[0025] Next, as illustrated in FIG. 6, by further pressing the central portion (connecting portion 11) of the elastic member 3, the elastic member 3 is fitted into the opening 5 of the cap 1 with the futon 19 sandwiched therebetween. When being fitted, the pair of elastic bodies 9 open upward, whereby the central portion (connecting portion 11) is located deeper than the opening 5. At this time, among the pair of elastic bodies 9, the tip portion 21 farthest from the connecting portion 11 is locked to the inward projecting portion 7 provided along the peripheral edge of the opening 5 of the cap 1. As a result, the fitted elastic member 3 does not come off the inward projecting portion 7 and come out of the recess 2 of the cap 1 due to the elastic restoring force of the elastic body 9, and maintains the force to sandwich the futon 19 in cooperation with the cap 1.

[0026] In this way, by using the futon fastener 101, the futon 19 can be sandwiched from the front and back at various positions of the futon 19, and the movement of the inner material within the side fabric of the futon 19 can be suppressed. The positions where the futon 19 is sandwiched from the front and back are not limited to the ends of the futon 19. Also, it is not necessary to create needle holes in the side fabric. The elastic member 3 can be removed from the cap 1 by releasing the elastic restoring force of the elastic body 9, for example, by pulling up the connecting portion 11 using a hook.

[0027] Figs. 7 and 8 are a perspective view and a cross-sectional view illustrating a mounting tool associated with the futon fastener 101. This mounting tool 111 has a main body portion 23 and a movable portion 25. The main body portion 23 has a "V"-shaped groove 27 on its head that can accommodate the elastic member 3 in a bent state. The bottom center of the groove 27 has a through-hole 29. The movable portion 25 has a connecting portion holding portion 31 on its head that can elastically hold the connecting portion 11 of the elastic member 3. In the illustrated example, the connecting portion holding portion 31 is a groove that opens on the head of the movable portion 25 and receives the connecting portion 11, and the opening width is set to be slightly narrower than the diameter of the connecting portion 11, thereby elastically holding the connecting portion 11.

[0028] The movable portion 25 is movable up and down through the through-hole 29 of the main body portion 23. The main body portion 23 further has a stopping portion 33 that abuts against the movable portion 25 to prevent the movable portion 25 from retreating so that the movable portion 25 does not retreat from the position where it holds the connecting portion 11 of the elastic member 3 placed in the groove 27. Furthermore, the mounting tool 111 has a biasing member 35 that biases the movable portion 25 by an elastic restoring force so as to abut against the stopping portion 33.

[0029] In the illustrated example, the movable portion 25 has an extrusion member 37, a manual operation member 39, and a fastening member 41 that fastens them. The extrusion member 37 is inserted into the through-hole 29 and moves while being guided by the through-hole 29, and is a member that extrudes the elastic member 3 held by the connecting portion holding portion 31 at the head toward the recess 2 of the cap 1. In the illustrated example, the extrusion member 37 is plate-shaped.

[0030] The manual operation member 39 has a bottom portion that is connected to the bottom of the extrusion member 37 by a fastening member 41, and a cylindrical portion that is disposed around the extrusion member 37. By pressing the bottom of the manual operation member 39 with the palm or fingers, the extrusion member 37 can be advanced to extrude the elastic member 3. A part of the cylindrical portion of the manual operation member 39 is retractably accommodated in a cavity 43 that opens on the bottom surface of the main body portion 23 and communicates with the through hole 29. The biasing member 35 is accommodated in the cavity 43 and is interposed between the ceiling portion of the cavity 43 and the bottom of the manual operation member 39. In the illustrated example, the biasing member 35 is a compression coil spring.

[0031] Figs. 9 to 13 are use process diagrams illustrating the method of using the wearing tool 111. To use the wearing tool 111, first, as illustrated in Fig. 9, the elastic member 3 is placed on the "V"-shaped groove 27 of the main body portion 23 of the wearing tool 111 with the pair of elastic bodies 9 opening upward. Further, the connecting portion 11 of the elastic member 3 is elastically held by the connecting portion holding portion 31 of the movable portion 25.

[0032] Next, as illustrated in Fig. 10, the head of the main body portion 23 is directed toward and brought close to the recess 2 of the cap 1. Next, as illustrated in Fig. 11, the head of the main body portion 23 is pressed against the recess 2 of the cap 1 through the futon 19. In this way, the head of the main body portion 23 is set to a size that can be inserted into the recess 2 of the cap 1. Next, as illustrated in Fig. 12, by pressing the movable portion 25 toward the recess 2 of the cap 1, the connecting portion 11 of the elastic member 3 held by the connecting portion holding portion 31 of the movable portion 25 is pushed out to the bottom of the recess 2. Thereby, as illustrated in Fig. 13, the elastic member 3 is fitted into the opening 5 of the cap 1 in a state where the futon 19 is sandwiched. As described above, by using the wearing tool 111, the elastic member 3 can be easily attached to the cap 1.

[0033] Fig. 14 is a perspective view illustrating the hook attached to the futon fastener 101. The hook 121 in the illustrated example is entirely rod-shaped or long plate-shaped, and has a hook-shaped portion 45 at its tip for scooping up the central portion of the elastic member 3 fitted into the opening 5 of the cap 1.

[0034] FIG. 15 is a process diagram illustrating the usage method of the hook 121. To use the hook 121, as shown in the illustrated example, after inserting the hooked portion 45 of the hook 121 between the connecting portion 11 of the elastic member 3 fitted into the opening 5 of the cap 1 and the futon 19, by pulling up the hook 121, the elastic member 3 can be easily removed from the cap 1.

[0035] (Other Embodiments) (1) FIG. 16 is a perspective view illustrating the configuration of the elastic member of the futon fastener according to another embodiment of the present invention. The elastic member 47 illustrated in FIG. 16(a) has a linear elastic body curved in an "S" shape. Different from the elastic member 3 illustrated in FIG. 2, the connecting portion 11 is not provided. Even without the connecting portion 11 like the elastic member 47, it can be elastically curved by itself. Therefore, the elastic member 47 can be curved so that its central portion is located deeper than the opening 5 while maintaining the elastic restoring force in a state where it is fitted into the opening 5 of the cap 1. (2) Instead of the linear elastic body curved in an "S" shape, it is also possible to use a linear elastic body curved in an "8" shape so that the central portions intersect, like the elastic member 49 illustrated in FIG. 16(b).

[0036] (3) The hook 121 illustrated in FIG. 14 is also applicable to the elastic members 47, 49, 51 illustrated in FIG. 16. (4) The hook 121 illustrated in FIG. 14 was separate from the mounting tool 111, but it is also possible to configure it integrally with the mounting tool 111. (5) In FIG. 1, the inward overhanging portion 7 provided along the periphery of the concave portion 2 of the cap 1 extended along the entire circumference. In contrast, it is also possible to provide the inward overhanging portion 7 in a part along the periphery of the concave portion 2 within the range where the elastic member 3 can be locked.

[0037] (6) As the futon 19 to which the futon fastener 101 is applied, a cotton futon was illustrated, but the futon 19 may be a futon other than a cotton futon. For example, a thin futon with a soft filling is suitable as an application target of the futon fastener 101.

Description of Reference Numerals

[0038] 1 cap, 2 recess, 3 elastic member, 5 opening, 7 inwardly projecting portion, 9 elastic body, 11 connecting portion, 13 shaft body, 15 diameter-expanded portion, 17 spacer, 19 futon, 21 tip portion, 23 main body portion, 25 movable portion, 27 groove, 29 through hole, 31 connecting portion holding portion, 33 restraining portion, 111 mounting tool, 35 biasing member, 37 pushing member, 39 manually-operated member, 41 fastening member, 43 hollow portion, 45 hook-shaped portion, 47, 49, 51 elastic members, 101 futon fastener, 111 mounting tool, 121 hook.

Claims

1. a cap having a recess; an elastic member that can be fitted into the opening of the recess by an elastic restoring force; The cap has an inward protruding portion around the entire or a part of the periphery of the opening so that the fitted elastic member does not come off, The recess of the cap has a central portion recessed further back than the opening, The elastic member, when fitted into the opening, can be curved or bent so that its center is positioned further back than the opening while maintaining its elastic restoring force.

2. The elastic member has a pair of elastic bodies that can elastically expand and contract, and a connecting portion that connects base ends of the pair of elastic bodies to each other so that they can rotate, The futon fastener according to claim 1, wherein the elastic member can be bent so that the central portion of the elastic member is positioned deeper than the opening by the pair of elastic bodies rotating relative to one another.

3. Each of the pair of elastic bodies has a linear elastic body curved in a "C" shape having both ends sandwiching a gap at the base end, The futon fastener according to claim 2, wherein the connecting portion has a shaft to which each of the pair of elastic bodies is rotatably connected at both ends.

4. The cap further includes a fitting for fitting the elastic member into the opening of the cap. The wearing tool is a main body having a "V" shaped groove at a head portion, in which the elastic member can be placed in a bent state, and a through hole opening at a bottom center portion of the "V" shaped groove; a connecting portion holding portion that can elastically hold the connecting portion of the elastic member at a head portion of the connecting portion holding portion, and a movable portion that can move through the through hole of the main body portion, the main body further includes a stopper portion that abuts against the movable portion to stop the movable portion from retracting from a position that holds the connecting portion of the elastic member placed in the "V"-shaped groove, 4. The futon fastener according to claim 2 or 3, wherein the attachment further comprises a biasing member that biases the movable portion by elastic restoring force so as to contact the restraining portion.

5. The futon fastener according to any one of claims 1 to 3, further comprising a hook for removing the elastic member from the cap by scooping up the central portion of the elastic member fitted into the opening of the cap.

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