KR101686954B1

KR101686954B1 - Height-Adjustable Pillow

Info

Publication number: KR101686954B1
Application number: KR1020150064625A
Authority: KR
Inventors: 장상빈
Original assignee: 주식회사 모텍스
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2016-12-19
Also published as: KR20160132266A

Abstract

According to the present invention, A plurality of upper members arranged so as to be movable up and down at different positions on the upper side of the lower member; And a lift device for independently controlling the height of the upper members by moving the upper members in the vertical direction, respectively.

Description

{Height-Adjustable Pillow}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pillow, and more particularly, to a height-adjustable pillow capable of varying the height.

The pillow is configured to support the user's head to maintain a comfortable posture when the user is lying down or sleeping, and is generally configured to have a constant height and proper cushioning.

People take sleep in various postures. He lays down on a regular basis, lays down on his side, and falls down. In the case of cutting a pillow at a normal time, the back, the cervical spine, and back part of the human body form a straight line. Therefore, even if a relatively high pillow is used, the pillow will not feel a great inconvenience. The shoulder of one side and the side of the other side of the face, the cervical vertebrae are distorted due to the difference in distance. On the contrary, if a relatively high pillow is used, it may be relatively comfortable to sit on the side, but when laying on the bedside, it is difficult to expect a comfortable sleep because the head is lifted.

An embodiment of the present invention is to provide a height-adjustable pillow that can be adjusted to a height at which the user can feel comfortable.

The problems to be solved are not limited thereto, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, A plurality of upper members arranged to be movable up and down at different positions on the upper side of the lower member; And a lift device that adjusts the height of each of the upper members independently by moving the plurality of upper members in the up and down directions, respectively.

Wherein the lift mechanism for adjusting the height of the first upper member of the plurality of upper members includes at least one rotary member mounted on one of the first upper member and the lower member such that the first upper member and the lower member are rotatable about the vertical axis; And an elevating operation mechanism for elevating and lowering the first upper member while performing linear motion in the vertical direction with respect to the other one of the first upper member and the lower member by converting the rotational motion of the rotary member.

Wherein the elevating operation mechanism includes a slope inclined upwardly inclined in one direction along the circumferential direction about the axis of the rotary member, which is provided at a portion of the rotary member opposite to the other of the first upper member and the lower member, An elevating guide member having a portion; And a contact member protruding from the other of the first upper member and the lower member so as to contact the inclined surface and performing a linear motion in the up and down direction by the inclined surface when the rotating member is rotated. The lift device for controlling the height of the first upper member may further include reverse rotation preventing means for limiting the rotation direction of the rotary member such that the rotary member is rotated only in a forward direction in which the rotary member is lifted up .

Alternatively, the elevating / lowering operation mechanism may include an inclination adjusting mechanism provided at a portion of the rotary member opposite to the other of the first upper member and the lower member, and inclined upwardly in one direction along the circumferential direction about the axis for the rotary member An elevating guide member having a plurality of engagement protrusions continuously provided in the longitudinal direction of the inclined portion on the inclined portion and disposed at different heights; And a contact member protruding from the other of the first upper member and the lower member and arranged to contact any one of the plurality of latching jaws in accordance with a rotation angle of the rotation member, Wherein the stepped surfaces are spaced apart from each other along the longitudinal direction of the inclined portion and are spaced apart from each other and at different heights, and the connecting surfaces are inclined surfaces connecting the stepped surfaces of the different heights, And the contact member can be displaced to another adjacent step surface while being raised or lowered along the connecting surface when the rotating member is rotated.

According to an embodiment of the present invention, there is provided an image forming apparatus comprising: a lower member having an open upper portion and a hollow inner portion; A first upper member and a second upper member arranged to be movable forward and rearward from the upper side of the lower member in the vertical direction, respectively; And a first elevating device and a second elevating device for moving the first upper member and the second upper member in the vertical direction to adjust the height of the first upper member and the height of the second upper member, The first elevating device or the second elevating device includes a drive rotating member and at least one driven rotating member mounted inside the lower member so as to be rotatable about respective vertical axes; A first power transmission mechanism for transmitting the rotational force of the drive rotational member to the driven rotational member; And an elevating operation mechanism for elevating and lowering the first upper member or the second upper member while performing linear motion in the vertical direction with respect to the first upper member or the second upper member by converting the rotational motion of the driven rotary member .

The first elevating device or the second elevating device includes a driving shaft disposed so as to intersect the shaft for driving the driving circuit member and having one end protruded from the inside of the lower member so as to be directly manipulated by a user, And a second power transmission mechanism for transmitting the rotational force of the drive shaft to the drive rotational member to rotate the drive rotational member.

Here, the driving and rotating member may be disposed at a position where a portion of the outer circumferential side is exposed through an exposure opening provided in the lower member so as to be directly manipulated by the user.

The height control pillow according to the embodiment of the present invention may further include a height display device for displaying the height of the first upper member (or the second upper member).

The height display device includes: a rack extending downward along the vertical direction from the first upper member (or the second upper member); A pinion engaged with the rack; And a display member provided outside the lower member and rotatable together with the pinion and having a height display portion.

Means for solving the problems will be more specifically and clarified through the embodiments, drawings, and the like described below. In addition, various solution means other than the above-mentioned solution means may be further proposed.

According to the embodiment of the present invention, since the height of the pillow can be adjusted partly by the height at which the user can feel comfortable, the user can take a more comfortable sleep.

In addition, when applied to a multi-use facility such as a hospital, a hotel or a condominium, the user can adjust the height of the pillow according to his / her preference, thereby greatly improving the customer satisfaction.

1 to 3 are a front view, a plan view, and a side view, respectively, of a height adjustment pillow according to a first embodiment of the present invention.
4 and 5 are a perspective view and a plan view showing a lift device of a height control pillow according to a first embodiment of the present invention.
6 is an enlarged view of a portion A in Fig.
Fig. 7 is a configuration diagram showing part B of Fig. 6. Fig.
8 is a perspective view and a plan view showing a height display device of a height control pillow according to a first embodiment of the present invention.
FIG. 9 and FIG. 10 are perspective views showing a main portion of a height adjusting pillow according to a second embodiment of the present invention.
11 is a plan view showing the reverse rotation prevention means shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For a better understanding of the invention, it is to be understood that the size of elements and the thickness of lines may be exaggerated for clarity of understanding. Further, the terms used to describe the embodiments of the present invention are mainly defined in consideration of the functions of the present invention, and thus may be changed depending on the intentions and customs of the user and the operator. Therefore, the terminology should be interpreted based on the contents of the present specification throughout.

A height-adjustable pillow according to a first embodiment of the present invention is shown in Figs. 1-8.

1 to 3, the height control pillow according to the first embodiment of the present invention includes a base 20 as a lower member and a plurality of lift panels 30A and 30B as an upper member. The base 20 and the lift panels 30A and 30B constitute a pillow body.

The base 20 is formed in a rectangular box shape having a structure in which at least a part of the upper part is opened. Specifically, the base 20 is composed of a bottom plate and side walls erected along the edges on the bottom plate.

The elevating panels 30A and 30B are arranged so as to be movable in the up-and-down direction Z-axis direction (vertical direction) at different positions on the upper side of the base 20, respectively.

Cushions 40A and 40B for resiliently supporting the head of the user are disposed above the lift panels 30A and 30B.

1, the elevation control pillow according to the first embodiment of the present invention guides upward and downward movement of the lifting panels 30A and 30B so that the lifting panels 30A and 30B can move accurately in the vertical direction And may further include guiding means (52, 54).

Guide means 52 and 54 include guide pins 52 protruding downward from the lower portions of the lift panels 30A and 30B and guide pins 52 on the bottom plate of the base 20, And a pin insertion member 54 having a guide hole in which the guide pins 52 are inserted, respectively. It is preferable that a plurality of guide pins 52 paired with the pin insertion member 54 are provided on the lift panels 30A and 30B. The positions of the pair of guide pins 52 and the pin insertion member 54 can be changed from each other.

4 to 7, the elevation control pillow according to the first embodiment of the present invention moves the elevation panels 30A and 30B in the vertical direction (Z-axis direction) And elevating devices 500A and 500B that adjust the elevation independently (individually).

The first embodiment of the present invention is characterized in that a plurality of lift panels 30A and 30B may be provided, but the first lift panel 30A positioned relatively forward and the second lift panel < RTI ID = 0.0 > The first elevating device 500A for elevating and lowering the first elevating panel 30A and the second elevating device 500B for elevating and lowering the second elevating panel 30B, The present invention will now be described with reference to the accompanying drawings.

The first lift panel 30A and the second lift panel 30B arranged in the forward and backward directions (Y-axis direction) divide the user's head into upper and lower portions. According to the first embodiment of the present invention, the first elevation panel 30A and the second elevation panel 30B can be maintained in a posture that allows the user to feel comfort during sleep, etc. Head height, head angle, etc. can be adjusted more freely.

The first elevating device 500A moves the first elevating panel 30A upward and downward with respect to the base 20 to adjust the height of the first elevating panel 30A relative to the base 20. [

4 and 5, the first elevating device 500A includes a plurality of rotating members 512A and 514A formed in a disk shape. The rotating members 512A and 514A are disposed between the base 20 and the first lift panel 30A. The rotating members 512A and 514A are provided with a single driving rotating disk 512A and a plurality of driven rotating disks 514A having the same diameter.

Both the driving rotating disk 512A and the driven rotating disk 514A are rotatably mounted on the bottom plate of the base 20 in the vertical direction (Z-axis direction) do. For example, four follower rotating discs 514A are provided and two of them can be arranged in the left-right direction (both sides in the X-axis direction) in the front-rear direction.

4 and 5, the first elevating device 500A is configured such that when the driving rotating disk 512A is rotated, the rotating rotational disk 512A is rotated by the driven rotating disk 514A so that the driven rotating disks 514A are rotated together, And further includes first power transmission mechanisms 522A, 524A, and 526A that transmit power to the rotating disk 514A.

The first power transmission mechanisms 522A, 524A, and 526A are gear type transmission mechanisms including a spur gear. The spur gear includes a single driving gear 522A, a plurality of driven gears 524A having the same pitch circle diameter, and a single idler gear 526A.

The driving gear 522A is mounted coaxially with the driving rotating disk 512A and rotated together with the driving rotating disk 512A and the driven gears 524A are coaxially mounted on the driven rotating disks 514A, (514A).

The idler gear 526A is rotatably mounted on a bottom plate of the base 20 in a vertical direction (Z-axis direction), and the driven gears 524A are engaged with idler gears 526A at different positions, respectively , The drive gear 522A engages with one of the driven gears 524A. Accordingly, when the driving rotary disk 512A is rotated, any one of the driven rotary disks is rotated by the driving gear 522A and one of the driven gears engaged with the driven rotary disk 512A, and the driven gear 522A, The idler gear 526A and the remaining driven gear, the remaining driven rotary disk is rotated at the same speed as any one driven rotary disk.

The driving gear 522A and the driven gear 524A may be provided below the driving rotation disk 512A and the driven rotation disk 514A and may be provided on the outer periphery of the driving rotation disk 512A and the driven rotation disk 514A May be provided.

The number of the idler gears 526A can be appropriately increased according to conditions such as the arrangement structure between the driving rotary disk 512A and the driven rotary disk 514A and the number of the driven rotary disk 514A. Of course, the idler gear 526A may not be applied depending on the operating conditions.

On the other hand, the first power transmission mechanisms 522A, 524A, and 526A may be a belt, a timing belt, a pulley or a chain, and a sprocket wheel (not shown) a sprocket wheel may be used.

6 and 7, the first elevating device 500A converts the rotational motion of the driven rotary disks 514A to linearly move in the vertical direction (Z-axis direction) with respect to the first elevating panel 30A, Lifting operation mechanisms 532A and 534A for lifting the first lift panel 30A while lifting the first lift panel 30A.

The lifting and lowering operation mechanisms 532A and 534A include an elevating guide member 532A provided on the upper portion of the driven rotating disk 514A and adapted to rotate together with the driven rotating disk 514A respectively from the lower portion of the first lifting panel 30A And a contact member 534A protruding toward the lifting guide members 532A, respectively.

Each of the lifting guide members 532A is provided at an upper portion thereof with an up-sloping sloped side in a circumferential direction about the axis of the driven rotary disk 514A at its lower portion in one direction (opposite to the rotational direction, that is, clockwise with reference to Fig. 5) And has an inclined portion 532A1. Further, the lifting guide members 532A have hooking jaws 532A2 continuously provided along the longitudinal direction of the inclined portion 532A1 on the inclined portion 532A1. Thus, the latching jaws 532A2 are arranged at different heights.

Each of the contact members 534A is brought into contact with one of the engaging jaws 532A2 at an end portion thereof in accordance with the rotation angle of the lifting guide member 532A rotated together with the driven rotating disk 514A. Preferably, the end of each contact member 534A is formed to be sharp.

Each of the latching jaws 532A2 is composed of a stepped surface 532A3 and a connecting surface 532A4. The step surfaces 532A3 are spaced apart from each other at regular intervals along the longitudinal direction of the inclined portion 532A1 and are located at different heights. The connecting surfaces 532A4 are formed as inclined surfaces connecting stepped surfaces 532A3 of different heights. The contact member 534A is moved up and down along the connecting surface 532A4 when the elevating guide member 532A is rotated together with the driven rotating disk 514A below the elevating guide member 532A so as to be brought into contact with another adjacent stepped surface .

In order to prevent the contact member 534A from being inadvertently moved up and down along the connecting surface 532A4, the stepped surfaces 532A3 are respectively moved in one direction along the circumferential direction about the axis of the driven rotating disk, In the clockwise direction with reference to FIG. 5).

4 and 5, the first elevating device 500A includes a rotatable drive shaft 540A disposed on the drive rotation disk 512A in a horizontal direction so as to intersect the shaft for the drive rotation disk 512A, And second power transmission mechanisms 552A and 554A for transmitting the rotational force of the drive shaft 540A to the drive rotation disk 512A.

The drive shaft 540A is disposed in the Y-axis direction in the front-rear direction and penetrates one side of the side wall constituting the base 20 so as to be directly manipulated by the user, so that one end thereof is exposed to the outside. An operation handle 545A is mounted on one end of the drive shaft 540A exposed to the outside.

The second power transmission mechanisms 552A and 554A engage with the drive bevel gear 552A and the drive bevel gear 552A mounted on the other end of the drive shaft 540A and are driven and rotated And a driven bevel gear 554A mounted coaxially with the disk 512A.

The first elevating device 500A constructed as described above is configured such that when the contact members 534A are positioned on the stepped surfaces 532A3 of the engaging jaws located at the lowermost end of the engaging jaws 532A2 of the respective elevating guide members 532A , And maintains the first lift panel 30A at the lowest position.

In this state, by rotating the drive shaft 540A by operating the operation handle 545A, the rotational force of the drive shaft 540A is transmitted to the drive rotation disk 512A by the drive bevel gear 552A and the driven bevel gear 554A And rotates the driving rotary disk 512A and rotates the driving rotary disk 512A by the driven rotary disk 514A by the driving gear 522A, the driven gears 524A and the idler gear 526A, And rotates the lifting guide members 532A together with the driven rotating disks 514A. When the elevation guide members 532A are all rotated counterclockwise with reference to Fig. 5 by operating the operation handle 545A, the abutting members 534A are brought into contact with the inclined connecting surfaces 532A4 of the lowermost engaging shoulder 532A2 And is positioned on the stepped surface 532A3 of the latching jaw at a higher position adjacent to the lowermost latching jaw 532A2 so that the first lift panel 30A is maintained at a raised height do.

When the operation handle 545A is further rotated in the same direction, the height of the first lift panel 30A is further raised. Of course, when the operation handle 545A is continuously rotated in the same direction, the contact members 534A are continuously raised by the respective latching jaws 532A2 and positioned on the stepped surface 532A3 of the latching jaw positioned at the uppermost position Falls on the stepped surface of the lowermost stopping jaw.

On the other hand, when the operation handle 545A is rotated in the opposite direction, the contact members 534A are positioned on the stepped surface 532A3 of the latching jaw 532A2 positioned at a relatively low stage, The height is lowered.

The second lifting device 500B moves the second lifting panel 30B upward and downward with respect to the base 20 to adjust the height of the second lifting panel 30B relative to the base 20. [

As shown in FIGS. 4 and 5, the second elevating device 500B includes a plurality of rotating members 512B and 514B formed in a disk shape. The rotating members 512B and 514B of the second lifting device 500B are disposed between the base 20 and the second lifting panel 30B. The rotating members 512B and 514B of the second lifting device 500B are provided with a single driving rotating disk 512B and a plurality of driven rotating disks 514B having the same diameter.

Both the driving rotary plate 512B and the driven rotary plate 514B of the second lifting device 500B are mounted on the bottom plate of the base 20 so as to be rotatable about an axis in the vertical direction (20). For example, four driven rotating disks 514B of the second lifting device 500B are provided and two of them can be arranged in the left and right direction (both sides in the X-axis direction) in the forward and backward directions.

1 and 5, a part of the peripheral portion of the driving rotating disk 512B of the second lifting device 500B is passed through an exposure opening 22 provided on one side wall of the base 20 The user can directly rotate the driving rotary disk 512B of the second elevating device 500B using a part of the outer peripheral side of the driving rotary disk 512B exposed through the exposure opening 22 have.

4 and 5, the second elevating device 500B is configured such that when the driving rotating plate 512B of the second elevating device 500B is rotated due to user's operation, The power transmitting mechanism 522B for transmitting the rotational force of the driving rotating disk 512B of the second elevating device 500B to each driven rotating disk 514B of the second elevating device 500B so that the driven rotating disks 514B are rotated together , 524B, and 526B.

The power transmission mechanisms 522B, 524B, and 526B of the second lifting device 500B are gear type transmission mechanisms including a spur gear. As the spur gears of the power transmission mechanisms 522B, 524B and 526B of the second lifting device 500B, a single drive gear 522B, a plurality of driven gears 524B having the same pitch circle diameters, Two identical idler gears 526B are provided.

The driving gear 522B of the second elevating device 500B is mounted coaxially with the driving rotating plate 512B of the second elevating device 500B and rotated together with the driving rotating plate 512B of the second elevating device 500B And the driven gears 524B of the second elevating device 500B are respectively coaxially mounted on the driven rotating disks 514B of the second elevating device 500B to rotate the driven rotating disks 514B ).

In the second elevating device 500B, the two idler gears 526B are engaged with each other and mounted on the bottom plate of the base 20 so as to be rotatable about an axis in the up-and-down direction (Z-axis direction) ) Engage with one and the other idler gear 526B, respectively, and the drive gear 522B meshes with one of the driven gears 524B. Accordingly, when the driving rotary plate 512B of the second elevating device 500B is rotated, the driving gear 522B of the second elevating device 500B and any one of the driven gears engaged with the driving gear 522B, The rotating disk is rotated and the remaining driven rotary disk of the second lifting device 500B is driven by the driven gear engaged with the driving gear 522B of the second lifting device 500B, the two idler gears 526B and the other driven gear And is rotated at the same speed as any one of the corresponding driven rotary disks.

The driving gear 522B and the driven gear 524B of the second elevating device 500B may be provided below the driving rotating disk 512B and the driven rotating disk 514B of the second elevating device 500B, And may be provided on the outer periphery of the driving rotary plate 512B and the driven rotary plate 514B of the second lifting device 500B.

The number of the idler gears 526B in the second elevating device 500B is set to be larger than the number of idler gears 526B in the operating conditions such as the arrangement structure between the driving rotating disk 512B and the driven rotating disk 514B, the number of the driven rotating disks 514B, And can be appropriately increased or decreased accordingly. That is, depending on the conditions, only one idler gear 526B may be provided, or three or more idler gears 526B may be provided. Of course, the idler gear 526A may not be applied depending on the operating conditions.

On the other hand, as the power transmission mechanisms 522B, 524B, and 526B of the second lifting device 500B, a transmission mechanism using a belt (which may be a timing belt) and a pulley or a chain and a sprocket wheel may be applied have.

The second elevating device 500B converts the rotational motion of the driven rotary disks 514B of the second elevating device 500B and performs a linear motion in the vertical direction (Z-axis direction) with respect to the second elevating panel 30B And an elevating operation mechanism 532B for elevating and lowering the second lift panel 30B.

The elevating operation mechanism 532B of the second elevating device 500B is disposed above the driven rotating discs 514B of the second elevating device 500B and the driven rotating discs 514B of the second elevating device 500B, And a contact member (not shown) protruding from the lower portion of the second lift panel 30B toward the elevation guide members 532B of the second elevation device 500B, respectively, .

The elevating operation mechanism 532B of the second elevating device 500B is constructed and operates in the same or similar manner as the elevating operation mechanisms 532A and 534A of the first elevating device 500A.

More specifically, the lifting operation mechanisms 532B and 534B of the second lifting gear 500B are provided with two idler gears 526B and driven gears 524B engaged with one idler gear 526B and the other idler gear 526B, The upper portion of the elevating guide member (two elevating guide members disposed on the right side with reference to FIG. 5) provided on the driven rotary disk coaxial with the driven gear engaged with any one of the two idler gears 526B, (See reference numeral 532A1 in Fig. 6) which is provided in an oblique upward slope in one direction (counterclockwise in the direction of rotation, that is, clockwise in Fig. 5) along the circumferential direction about the lower driven rotation disc axis An upper portion of an elevating guide member (two elevating guide members disposed on the left side with reference to FIG. 5) provided on a driven rotary disk coaxial with the driven gear engaged with the other one of the two idler gears 526B, (An inclined portion 532A1 shown in Fig. 6) provided upside down in the other direction along the circumferential direction around the disk shaft (counterclockwise with respect to the rotation direction, that is, counterclockwise with reference to Fig. 5) And is inclined upwardly in the counterclockwise direction opposite to the inclined direction.

Like the elevating guide members 532A of the first elevating apparatus 500A, the elevating guide members 532B of the second elevating and lowering apparatus 500B are also provided on the sloping portion continuously along the longitudinal direction of the sloping portion (Reference numeral 532A2 in Fig. 6). Accordingly, the engaging jaws of the second elevating device 500B are also disposed at different heights.

6A and 6B) of the second elevating device 500B and the connecting surfaces (see FIG. 6) of the second elevating device 500B, as well as the engaging jaws 532A2 of the first elevating device 500A, 532A4). 5). However, the elevating guide member (two elevating guide members disposed on the right side in FIG. 5) provided on the driven rotary disk coaxial with the driven gear engaged with any one of the two idler gears 526B of the second elevating device 500B, While the two idler gears 526B and 526B are inclined downward in one direction (counterclockwise in the direction of rotation, that is, clockwise in FIG. 5) along the circumferential direction around the axis for the driven rotary disk at the lower portion thereof, (The two elevating guide members disposed on the left side with reference to Fig. 5) provided on the driven rotary disk coaxial with the other one of the driven gears disposed on the driven rotary disk, (Counterclockwise with reference to Fig. 5) in the direction of the other side (the direction opposite to the direction of rotation).

As described above, the elevating operation mechanism 532B of the second elevating and lowering device 500B is constructed and operates in the same or similar manner as the elevating operation mechanisms 532A and 534A of the first elevating and lowering device 500A, A detailed description will be omitted.

The second elevating apparatus 500B constructed as described above is configured such that the contact members are spaced apart from each other in the stepped surface of the engaging jaw portion (refer to FIG. 6A) of the engaging jaw (see 532A2 in FIG. 6) of each of the elevating guide members 532B 532A3), the second lift panel 30B is held at its lowest position.

In this state, by rotating and rotating the driving rotary plate 512B of the second elevating device 500B, the rotational force of the driving rotary plate 512B is transmitted to the driving gear 522B of the second elevating device 500B, Rotating circular discs 514B of the second elevating device 500B by the second driven gears 524B and idler gears 526B to rotate the driven rotary discs 514B of the second elevating device 500B Thereby rotating the lifting guide members 532B. 5) of the second elevating device 500B by manipulating the driving rotary plate 512B of the second elevating device 500B in this way to move the elevating guide member 532B 5) is rotated in the counterclockwise direction with reference to FIG. 5, and the rest (two elevating guide members disposed on the left side with reference to FIG. 5) is rotated clockwise with reference to FIG. 5, (Refer to reference numeral 534A in Fig. 7) of the lifting guide members 532A and 532B follow the inclined connecting surfaces (see 532A4 in Fig. 6) of the engaging jaws (refer to 532A2 in Fig. 6) (See reference numeral 532A3 in Fig. 6) of the latching jaw portion at a higher position adjacent to the lowest jaw portion while the second lift panel 30B is lifted up by one step do.

Similarly to the first elevating apparatus 500A, in the case of the second elevating apparatus 500B, if the driving rotating disk 512B is further rotated in the same direction, the height of the second elevating panel 30B is further elevated. When the driving rotary disk 512B of the second elevating device 500B is continuously rotated in the same direction, the contact members of the second elevating device 500B are continuously moved by the engaging jaws of the second elevating device 500B And is positioned on the stepped surface of the lowermost engaging jaw portion. On the other hand, when the driving rotation disk 512B of the second lifting device 500B is rotated in the opposite direction, the height of the second lifting panel 30B is lowered.

Reference numerals 200A and 200B of FIGS. 1, 2 and 8 denote a first elevation display device and a second elevation device 500B for indicating the elevation of the first elevation panel 30A raised and lowered by the first elevation device 500A And a second height display device for displaying the height of the second lift panel 30B raised and lowered.

The first height display device 200A includes a rack 210A extending downward from the bottom of the first lift panel 30A and positioned inside the base 20, A pinion 220A mounted on the pinion 220A and an operating gear 230A mounted on the inside of the base 20 and meshing with the pinion 220A; And a display member 240A rotated together with the gear 230A and having a height display portion. Although not shown, the indication portion may be provided at a portion adjacent to the display member 240A in the base 20, and the indication portion may indicate the height indicated by the height display portion of the display member 240A.

When the first lift panel 30A is lifted and lowered, the rack 210A is lifted and lowered together in the same direction, so that the pinion 220A and the operating gear 230A are rotated, The height of the first lift panel 30A that is raised and lowered while the display member 240A is rotated is displayed. At this time, the user can adjust the elevation of the first lift panel 30A while visually checking the elevation of the elevated first lift panel 30A through the elevation display portion of the display member 240A.

Similarly to the first height display device 200A, the second height display device 200A also includes a rack 210B, a pinion 220B, an operating gear 230B, and a display member 240B, . The second height display device 200A has a structure in which the rack 210B extends downward from the lower portion of the second lift panel 30B as compared with the first height display device 200A, And therefore, a detailed description thereof will be omitted.

Meanwhile, in the first embodiment of the present invention, the rotating members 512A, 514A, 512B and 514B of the lifting devices 500A and 500B are mounted on the base 20 and the contact members 534A of the lifting devices 500A and 500B, The elevating devices 500A and 500B are installed in the elevating panels 30A and 30B so that at least one of the elevating devices 500A and 500B is rotated by the rotating members 512A and 514A and 512B And 514B are mounted on the lift panels 30A and 30B and the contact member 534A is provided on the base 20 in the reverse order.

Although the first embodiment of the present invention has been described with reference to the configuration in which the two lift panels 30A and 30B are disposed before and after the lift panels 30A and 30B, the number and arrangement of the lift panels 30A and 30B are not limited thereto, . Accordingly, in the first embodiment of the present invention, the elevating panels 30A and 30B are not a single-person pillow that supports the user's head by dividing the head of the user into an upper portion and a lower portion. For example, It may be a pillow for two people each.

The main part of the height-adjustable pillow according to the second embodiment of the present invention is shown in Figs. 9 to 11. Fig. As shown in Figs. 9 to 11, the height adjustment pillow according to the second embodiment of the present invention is the same as the first embodiment of the present invention, The elevating and lowering guide member 532A-1 is slightly different from the elevating and lowering operating mechanism of the elevating apparatus (see reference numeral 500A in FIGS. 4 and 5), and further includes the reverse rotation preventing means 562A and 564A .

Referring to Fig. 9, in the second embodiment of the present invention, the elevating guide member 532A-1 of the first elevating mechanism is provided on the upper portion of the driven rotary disks 514A of the first elevating mechanism, (514A). The elevating guide member 532A-1 of the first elevating mechanism is disposed in the upper portion in one direction along the circumferential direction about the axis for the driven rotating disk 514A at the lower portion thereof (In a clockwise direction) with an inclined surface 532A5.

The elevating guide members 532A-1 constituting the first elevating device of the second embodiment are rotated in the same direction together with these driven rotating discs 514A when the driven rotating discs 514A of the first lift device are rotated, The contact members (see reference numeral 534A in Fig. 7) constituting the first lift device are linearly moved in the vertical direction by the inclined surfaces 532A5 provided on the elevation guide members 532A-1 of the first lift device, (See reference numeral 30A in Fig. 7).

The reverse rotation preventing means 562A and 564A serve to limit the rotational direction of the driven rotary disk 514A so that the driven rotary disk 514A of the first lift device is rotated only in the forward direction. The forward rotational direction of the driven rotary disk 514A of the first lift device is the direction in which the driven rotary disk 514A of the first lift device is rotated such that the first lift panel is raised.

10 and 11, the reverse rotation preventing means 562A and 564A are provided at the upper center of at least one of the driven rotary disks 514A of the first lift device to be coaxial with the corresponding driven rotary disk 514A An inner tooth ratchet 562A which is disposed in an inner region defined by the lifting guide member 532A-1 of the first lifting gear and is rotatable together with the driven rotating disk 514A and provided with a ratchet gear on its inner periphery, And a stopper 564A having a single or plural pawls for preventing the ratchet teeth of the internal gear ratchet 562A from engaging with the ratchet teeth of the internal tooth latch ratchet 562A and preventing the ratchet teeth 562A from being reversely rotated together with the corresponding driven rotary disk 514A .

The ratchet gear of the internal gear ratchet 562A is inclined at a predetermined angle with respect to the radial direction of the internal tooth ratchet 562A so that the forward end portion thereof faces the reverse rotation direction, and the moving surface 562A1 toward the forward rotation direction and the reverse rotation direction side And a plurality of gears having a stop surface 562A2 that is oriented toward the center axis.

The stopper 564A is disposed in the inner circumferential side space of the latch gear 562A and the center is fixed to a dedicated fixed shaft. The center of the stopper 564A is connected to a shaft fixed to the fixed shaft dedicated to the stopper 564A fixed to the bottom plate of the base (refer to reference numeral 20 in Fig. 1 or the like) through the center of the driven rotary disk 514A. . The pole of the stopper 564A is provided on the outer periphery of the upper portion of the shaft member. The pole of the stopper 564A is made of a flexible material and is formed into an arc shape whose tip is bent toward the normal rotation direction.

The distal end of the pole of the stopper 564A is held in contact with the stop surface 562A2. When the internal ratchet 562A is rotated in the forward direction, it is contacted with the moving surface 562A1 by the flexible material and arc- And bends to allow forward rotation of the internal tooth ratchet 562A while reversing the internal tooth ratchet 562A restrains the bending deformation due to the shape of the arcuate tooth and limits the reverse rotation of the internal tooth ratchet 562A.

In contrast to what has been described, the pole of the stopper 564A may be a general ratchet pole.

In the elevation adjustment pillow according to the second embodiment of the present invention as constructed as described above, the driven rotary disks 514A of the first lift device are rotated only in the forward direction by the action of the reverse rotation preventing means 562A, 564A. Therefore, even if an external force (head weight of the user) is applied to the first lift panel from the upper side due to the use of the user or the like in the state where the height of the first lift panel is adjusted, the first lift panel can prevent the reverse rotation preventing means 562A, 564A).

On the other hand, in the second embodiment, the reverse rotation preventing means 562A, 564A is applied to at least one of the driven rotary disks 514A of the first lift device. Alternatively, the reverse rotation preventing means 562A (See reference numeral 512A in Fig. 4), idler gear (refer to reference numeral 526A in Fig. 4), drive bevel gear (refer to reference numeral 552A in Fig. 4), or driven bevel gear (See reference numeral 554A in Fig. 4).

Also, the elevation guide member 532A-1 and the reverse rotation preventing means 562A, 564A constituting the first lift device of the second embodiment can be applied to the second lift device in the same or similar manner.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

20: base (lower member)
30A, 30B: First and second lift panel (upper member)
40A, 40B: Cushion
52: Guide pin
54: pin insertion member
200A, 200B: first and second height display devices
500A, 500B: first and second lifting devices

Claims

A lower member having an upper open portion and an inner hollow portion; A first upper member and a second upper member arranged to be movable forward and rearward from the upper side of the lower member in the vertical direction, respectively; And a first elevating device and a second elevating device for moving the first upper member and the second upper member in the vertical direction to adjust the height of the first upper member and the height of the second upper member,
Wherein the first elevating device or the second elevating device comprises:
A drive rotation member and at least one driven rotation member mounted inside the lower member so as to be rotatable about respective vertical axes;
A first power transmission mechanism for transmitting the rotational force of the drive rotational member to the driven rotational member;
A lifting mechanism for lifting the first upper member or the second upper member while changing a rotational motion of the driven rotary member to linearly move the first upper member or the second upper member in a vertical direction;
A driving shaft disposed to intersect with the shaft for the driving circuit member and having one end protruded from the inside of the lower member to the outside so as to be directly manipulated by a user;
And a second power transmitting mechanism for transmitting the rotational force of the drive shaft to the drive rotational member to rotate the drive rotational member.
Height adjustable pillow.

A lower member having an upper open portion and an inner hollow portion; A first upper member and a second upper member arranged to be movable forward and rearward from the upper side of the lower member in the vertical direction, respectively; And a first elevating device and a second elevating device for moving the first upper member and the second upper member in the vertical direction to adjust the height of the first upper member and the height of the second upper member,
Wherein the first elevating device or the second elevating device comprises:
A drive rotation member and at least one driven rotation member mounted inside the lower member so as to be rotatable about respective vertical axes;
A first power transmission mechanism for transmitting the rotational force of the drive rotational member to the driven rotational member;
And an elevating operation mechanism for elevating and lowering the first upper member or the second upper member while converting the rotational motion of the driven rotary member to linearly move in the vertical direction with respect to the first upper member or the second upper member, ,
Wherein the drive rotation member is disposed at a position where a part of the outer peripheral side is exposed through an exposure opening provided in the lower member so as to be directly manipulated by a user,
Height adjustable pillow.

The method according to claim 1 or 2,
The elevating operation mechanism includes:
An ascending / descending induction member provided on an upper portion of the driven rotation member and having an inclined portion provided with an inclined surface inclined upward in one direction along a circumferential direction about an axis for the driven rotation member;
And a contact member protruding from the lower portion of the first upper member or the lower portion of the second upper member so as to be in contact with the inclined surface and performing linear motion in the up and down direction by the inclined surface when the driven rotary member is rotated,
Height adjustable pillow.

The method of claim 3,
Further comprising reverse rotation preventing means for limiting the rotational direction of the driven rotary member such that the driven rotary member provided with the elevating guide member is rotated only in a forward direction in which the first upper member or the second upper member is raised doing,
Height adjustable pillow.

The method according to claim 1 or 2,
The elevating operation mechanism includes:
An inclined portion provided on the upper portion of the driven rotary member and provided so as to be inclined upwardly in one direction along a circumferential direction about the axis for the driven rotary member and an inclined portion provided continuously on the inclined portion in the longitudinal direction of the inclined portion, An elevating guide member having a plurality of engaging jaws;
And a contact member protruding from a lower portion of the first upper member or a lower portion of the second upper member and arranged to contact any one of the plurality of latching jaws in accordance with a rotation angle of the driven rotation member,
Wherein each of the plurality of latching jaws comprises a stepped surface and a connecting surface,
Wherein the stepped surfaces are spaced apart from each other along the longitudinal direction of the inclined portion and are spaced from each other at different heights and the connecting surfaces are formed as inclined surfaces connecting the stepped surfaces of the different heights, Wherein when the driven rotatable member is rotated, the driven rotatable member is lifted along the connection surface and displaced to another adjacent stepped surface,
Height adjustable pillow.

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