JP6364397B2 - mattress - Google Patents

Description

  The present invention relates to an extendable mattress.

  In recent years, beds used for nursing care and treatment have a movable backrest and can be used with the user's upper body raised. The mattress used in this bed is required to have a telescopic function that smoothly bends and deforms while the backrest is movable.

  For example, in the mattress disclosed in Patent Document 1, a bellows-like stretchable portion is provided, and the bellows-like stretchable portion is bent and deformed as the backrest of the bed moves.

JP 11-89672 A

  However, in the conventional mattress, since the stretchable portion is formed in a bellows shape, a great load is continuously applied to the bent portion (especially the front side having a small radius) when bent, and deformation and There is a risk of fragmentation.

  Therefore, there is a possibility that the conventional mattress cannot be used repeatedly for a long time.

Therefore, in the present invention according to claim 1, in a mattress having an elastic portion, said elastic portion, have a slit extending in a direction perpendicular to the stretching direction as well as through the front and back, the slit includes a stretch direction perpendicular It consists of a plurality of first slits and second slits arranged at intervals in the direction of movement, and the first slit and the second slit are spaced in the expansion / contraction direction and shifted in a direction perpendicular to the expansion / contraction direction. The slits of the first slits arranged side by side are arranged in a nested manner with slit ends extending in opposite directions in the expansion / contraction direction at both ends of the first slit and the second slit. The first fixed piece formed between the end portions, the second fixed piece formed between the slit end portions of the second slits arranged side by side, and the first arranged in a nested manner The Forming the movable a movable piece stretch direction between the first fixed piece and a second fixing piece together is formed between the slit end of Tsu bets and slit end of the second slit It was to be.

Moreover , the said expansion-contraction part arranged the said 1st slit and the 2nd slit along with the expansion-contraction direction, and decided to hold | maintain the state extended partially and shortened by itself.

Further , the stretchable part is formed by being divided in a direction perpendicular to the stretchable direction.

  And in this invention, there exists an effect described below.

  That is, in the present invention, in the mattress having the stretchable portion, the stretchable portion penetrates the front and back, and has a slit extending in the direction perpendicular to the stretchable direction. In addition, it is possible to bend the whole smoothly by shortening the front side and extending the back side in the stretchable part. At that time, since the slit penetrates the front and back, it is possible to suppress the occurrence of deformation or fragmentation due to excessive load on the shortened side. Can be used repeatedly.

  In particular, when the stretchable part is held in its extended state and shortened state, the mattress can be extended or shortened as a whole according to the user's physique and the like. become.

  In addition, when the stretchable part is divided and formed in a direction perpendicular to the stretchable direction, the mattress can be partially expanded or shortened, so the mattress can be partially expanded according to the user's preference etc. Thus, a relatively soft part and a shortened comparatively hard part can be formed and used.

The plane explanatory view (a) and the side surface explanatory view (b) which show the mattress concerning the present invention. The plane part enlarged view of an expansion-contraction part (at the time of shortening (a), the time of expansion (b)). The plane enlarged view which shows the state which shortened the expansion-contraction part entirely. The plane enlarged view which shows the state which extended the expansion-contraction part entirely. The plane enlarged view which shows the state which expanded / contracted the expansion-contraction part partially. The plane enlarged view which shows the state which each expanded the 1st-3rd expansion-contraction part divided | segmented partially independently.

  Hereinafter, a specific configuration of the mattress according to the present invention will be described with reference to the drawings. In addition, this invention is applicable to the mattress formed in the sheet form like foam mattresses, such as a urethane foam and a foam rubber. In general, mattresses are often used in a state where they are covered entirely with a bag-like cover, or in a state where only the front side is partially covered with a sheet or the like. It may be used without any problem.

  As shown in FIG. 1, the mattress 1 has a vertically long rectangular thin plate shape that extends in the height direction of the user (the person who lies down), and mainly forms a stretchable portion 2 in a portion that supports the periphery of the user's waist. doing. Here, for the sake of convenience, the height direction of the person lying on the mattress 1 will be referred to as the vertical direction, and the direction orthogonal thereto will be described as the horizontal direction.

  The stretchable part 2 is stretchable in the vertical direction, and is divided into three in the horizontal direction, and a first stretchable part 3, a second stretchable part 4, and a third stretchable part 5 are formed. The first to third expansion / contraction parts 3, 4, 5 are formed with straight cutouts 6, 7 penetrating the front and back, and can extend and contract independently in the vertical direction. Thus, the expansion / contraction part 2 is divided into a plurality (here, three) in the direction orthogonal to the expansion / contraction direction.

  And the mattress 1 can shorten the expansion-contraction part 2 (1st-3rd expansion-contraction part 3, 4, 5) entirely as shown by the continuous line in FIG. Moreover, the mattress 1 can extend | stretch the expansion-contraction part 2 (1st-3rd expansion-contraction part 3, 4, 5) entirely, as shown by the dashed-dotted line in FIG. Further, as shown by a two-dot chain line in FIG. 1, the mattress 1 shortens the front side of the stretchable parts (first to third stretchable parts 3, 4, 5) and extends the back side to be bent as a whole. be able to. Furthermore, the mattress 1 can also partially extend or shorten the stretchable part 2 (first to third stretchable parts 3, 4, 5) (see FIG. 5 or FIG. 6).

  As shown in FIG. 2 (a), each of the first to third stretchable parts 3, 4, 5 includes a plurality of first slits 8 arranged side by side in a direction orthogonal to the stretchable direction, A plurality of second slits 9 are provided so as to be spaced from one slit 8 in the stretching direction and arranged side by side in a direction orthogonal to the stretching direction. The 1st and 2nd slits 8 and 9 have penetrated in the front and back, and the center part has extended in the direction orthogonal to the expansion-contraction direction partially. Here, the first and second slits 8 and 9 are notched gaps 6 and 7 here, but may be long holes formed at intervals.

  The first slits 8 and the second slits 9 arranged orthogonal to the expansion / contraction direction are alternately shifted in the direction orthogonal to the expansion / contraction direction. Then, slit end portions 10 and 11 extending in opposite directions in the expansion / contraction direction are formed at both end portions of the first slit 8 and the second slit 9, and the slit end portion 10 of the first slit 8 The slit ends 11 of the two slits 9 are arranged in a nested manner.

  Thereby, each 1st-3rd expansion-contraction part 3,4,5 is between the slit edge parts 10 of the 1st slit 8 arrange | positioned along with the expansion-contraction direction, as shown to Fig.2 (a). The first fixed piece 12 formed, the second fixed piece 13 formed between the slit end portions 11 of the second slit 9 arranged side by side in the expansion / contraction direction, and the second fixed piece 13 arranged in a nested manner It is formed between the slit end 10 of one slit 8 and the slit end 11 of the second slit 9 and is movable between the first fixed piece 12 and the second fixed piece 13 in the expansion / contraction direction. A piece 14 is formed.

  In the first to third extendable parts 3, 4, and 5, the connection part between the first fixed piece 12 and the movable piece 14 and the connection part between the second fixed piece 13 and the movable piece 14 are formed in a thin shape. These are bent and deformed at these connecting portions, and the state is maintained.

  Therefore, as shown in FIG. 2A, the first to third extendable parts 3, 4, 5 are provided with the slit end 10 of the first fixed piece 12 and the slit end 11 of the second fixed piece 13. The movable piece 14 is in a state where the movable piece 14 is closely shortened, and as shown in FIG. 2B, the movable piece 14 has the slit end 10 of the first fixed piece 12 and the slit end of the second fixed piece 13. It is now possible to hold the stretched state away from 11.

  The 1st-3rd expansion-contraction parts 3,4,5 form the 1st slit 8 and the 2nd slit 9 which make a pair, and form a plurality (here, 8 pairs) at intervals in the expansion-contraction direction. The first slit 8 and the second slit 9 of each pair can be changed to a state where each pair is independently shortened and a state where each pair is extended.

  For example, as shown in FIG. 3, all the first and second slits 8, 9 of the first to third stretchable parts 3, 4, 5 can be held in a shortened state. In this case, the entire length of the mattress 1 is minimized.

  Moreover, as shown in FIG. 4, it can hold | maintain in the state which extended all the 1st and 2nd slits 8 and 9 of the 1st-3rd expansion-contraction parts 3,4,5. In this case, the entire length of the mattress 1 is maximized. When the first to third stretchable parts 3, 4 and 5 are extended, the density of the first to third stretchable parts 3, 4 and 5 is lower than the shortened case. The user (the person lying down) feels soft.

  Further, as shown in FIG. 5, only the first and second slits 8 and 9 in the middle of the first to third stretchable parts 3, 4 and 5 are shortened and the others are held in an expanded state. be able to. In this case, the overall length of the mattress 1 is between the minimum and maximum. Then, by changing the number of the first and second slits 8 and 9 to be extended or shortened, the entire length of the mattress 1 can be adjusted between the minimum and maximum. In this case, the extended portions of the first to third stretchable portions 3, 4, and 5 are relatively soft, and the shortened portions of the first to third stretchable portions 3, 4, and 5 are compared. You will feel hard. In addition, it is possible to hold only the first and second slits 8 and 9 in the middle of the first to third extendable parts 3 and 4 and 5 while shortening the others.

  Furthermore, as shown in FIG. 6, only the first and second slits 8 and 9 in the middle of the first and third stretchable parts 3 and 5 are extended and the others are held in a shortened state. Only the first and second slits 8 and 9 in the middle of the second stretchable part 4 can be shortened and the others can be held in an expanded state. Here, the number of the first and second slits 8 and 9 to be extended or shortened is made the same in the first to third stretchable parts 3, 4, 5, and the first to third stretchable parts 3, 4, Make the lengths of 5 the same. Also in this case, the overall length of the mattress 1 is between the minimum and maximum. Then, by changing the number of the first and second slits 8 and 9 to be extended or shortened, the entire length of the mattress 1 can be adjusted between the minimum and maximum. Also in this case, the extended parts of the first to third elastic parts 3, 4 and 5 are relatively soft, and the shortened parts of the first to third elastic parts 3, 4 and 5 are compared. You will feel hard. In particular, in this case, it is possible to change the position of the first stretchable part 3, the third stretchable part 5, and the second stretchable part 4 that feels soft (hard). In this way, the soft and hard part can be freely changed and used according to the physique and preferences of the user (the person lying down).

  As described above, the mattress 1 includes the slits (first and third stretches 2 (first to third stretchable parts 3, 4, 5)) that extend through the front and back and extend in a direction perpendicular to the stretch direction. 2 slits 8 and 9). Note that the slits (first and second slits 8 and 9) do not necessarily extend linearly in the direction orthogonal to the expansion / contraction direction, and part of the slits extend in the direction orthogonal to the expansion / contraction direction. That's fine.

  Therefore, in the mattress 1 having the above-described configuration, the entire stretchable portion 2 can be smoothly extended or shortened, and the stretchable portion 2 can be shortened on the front side and stretched on the back side to be bent smoothly. . At that time, since the slits (first and second slits 8 and 9) penetrate the front and back, it is possible to prevent deformation or splitting due to excessive load on the shortened side. Therefore, the mattress 1 can be used repeatedly over a long period of time.

  The mattress 1 is configured to hold the stretched portion 2 (first to third stretchable portions 3, 4 and 5) in a stretched state and a shortened state. In addition, when covering the mattress 1 with a cover, a sheet, or the like, it may be covered with a stretchable cover or a sheet, or may be covered with a cover or a sheet having a different size according to the stretched state of the mattress 1.

  Therefore, in the mattress 1 having the above configuration, the mattress 1 can be used by being extended or shortened as a whole in accordance with the physique of the user.

  Furthermore, the mattress 1 has a configuration in which the stretchable portion 2 (first to third stretchable portions 3, 4, 5) is divided and formed in a direction orthogonal to the stretchable direction.

  Therefore, in the mattress 1 having the above-described configuration, the mattress 1 can be partially extended or shortened, so that the mattress 1 can be partially elongated and shortened to be relatively soft according to the user's preference or the like. Thus, it becomes possible to form and use a relatively hardened portion.

  The mattress 1 is configured to be stretchable in the height direction (vertical direction) of the user (the person lying down), but is not limited thereto, and can be expanded and contracted in the width direction (lateral direction). You may comprise as follows. Moreover, in the said mattress 1, although it is set as the structure which formed the one expansion-contraction part 2 in the middle part, it is not restricted to this, It is good also as a structure which formed the some expansion-contraction part 2 in the height direction (vertical direction).

DESCRIPTION OF SYMBOLS 1 Mattress 2 Elastic part 3 1st elastic part 4 2nd elastic part 5 3rd elastic part 6,7 Notch 8 1st slit 9 2nd slit
10,11 Slit end 12 First fixed piece
13 Second fixed piece 14 Movable piece

Claims (1)

In mattresses with stretchable parts,
The stretchable part has slits that penetrate the front and back and extend in a direction perpendicular to the stretch direction, and the slits are a plurality of first slits and second slits arranged at intervals in a direction perpendicular to the stretch direction. The first slit and the second slit are spaced apart in the expansion / contraction direction and are staggered in the direction orthogonal to the expansion / contraction direction, and are expanded / contracted at both ends of the first slit and the second slit. Arranged side by side with the first fixed piece formed between the slit end portions of the first slits arranged side by side by arranging the slit end portions extending in opposite directions to each other in a nested manner Between the second fixed piece formed between the slit end portions of the second slit and the slit end portions of the first slit and the second slit arranged in a nested manner It is formed Together form a movable a movable piece stretch direction between the first fixed piece and a second fixing piece,
The stretchable part is arranged by arranging the first slit and the second slit in the stretchable direction, and holds the stretched and shortened state by itself,
The extendable portion, the mattress characterized that you have been formed by dividing in a direction perpendicular to the stretching direction.

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