KR102401283B1 - Automatic height adjustable pillows - Google Patents

Abstract

Disclosed is an automatic height adjustment pillow which allows the height to be automatically adjusted in accordance with a posture and allows the height to be smoothly and flexibly adjusted by dual damping force. According to the present invention, the automatic height adjustment pillow comprises: a lower plate; an upper plate installed on an upper portion of the lower plate to be lifted to support the weight of a head; and a variable unit installed between the lower plate and the upper plate to change the height of the upper plate in accordance with a load applied to the upper plate, and including a pair of X-shaped variable supports and a driving cylinder providing an elastic driving force for the pair of variable supports in a direction in which the height of the pair of variable supports increases. The driving cylinder includes: a cylinder body filled with fluid, wherein both ends thereof are closed by a first plug and a second plug; a first piston tightly attached to the inside of the cylinder body to be driven straight and having at least one communication path through which fluid passes to prevent a sudden movement; an operating rod wherein one end thereof is fixed on the first piston, and the other end thereof penetrates the first plug to be connected to the pair of variable supports; and a first elastic member installed between the first piston and the first plug to provide an elastic force for transporting the first piston toward the second plug.

Description

Automatic height adjustable pillows {Automatic height adjustable pillows}

The present invention relates to an automatic height adjustment pillow, and more particularly, to an automatic height adjustment pillow whose height is automatically adjusted according to posture and whose height is soft and flexibly adjusted by a double damping force.

In modern society, the use of high-tech IT devices such as personal computers and mobile phones has become commonplace, and living with one's head bowed all day is becoming fixed. Many people are complaining of shoulder and neck pain. Patients with such neck and shoulder pain complain of greater pain in the morning, especially when they wake up from sleep.

In general, pillows support the head and induce comfortable sleep, secure the stability of the body structure through cervical spine protection, and facilitate breathing and blood circulation. If you continue to use a pillow, you may have a straight neck, a so-called turtle neck, or the alignment of the spine may change and cause numbness or pain.

However, since existing pillows are manufactured in a standardized form without considering individual body characteristics or sleeping posture, users have no choice but to adjust their body to the height or shape of the standardized pillow while sleeping.

As a technique for solving this problem, Patent Registration No. 10-1602945 is disclosed. The prior registered patent is configured to support the X-shaped height adjustment part between the upper and lower plates by the elastic force of the tension spring. With this configuration, the height can be adjusted by the difference in the load applied to the pillow when lying on the side or lying down, and by adjusting the height, the correct posture can be maintained when sleeping.

However, the automatic height adjustment pillow according to the prior art has a problem in that the displacement speed is irregular by controlling the height only by the elasticity of the tension spring, and does not give a comfortable feeling when ascending or descending. In addition, in the automatic height adjustment pillow according to the prior art, the X-frame structure supporting the upper and lower plates causes a phenomenon in which the intrinsic elasticity of the spring is rapidly reduced due to the action of the lever ratio as the angle changes (the closer the upper and lower plates are) there was

Registered Patent 10-1602945

According to the present invention, by applying a hydraulic damper, it is possible to implement a smooth and flexible operation and to provide an automatic height adjustment pillow capable of maximally suppressing noise that may be generated during operation.

Automatic height adjustment pillow according to an aspect of the present invention, the lower plate is placed on the floor and supported; The upper plate is installed to be liftable on the upper part of the lower plate to support the load of the head; Installed between the lower plate and the upper plate so that the height of the upper plate is variable according to the load applied to the upper plate, the pair of X-shaped variable supports and the pair of variable supports in the direction in which the height of the pair of variable supports increases a variable portion including a drive cylinder providing an elastic driving force to the variable support, wherein the drive cylinder includes: a cylinder body filled with a fluid and closed at both ends by a first plug and a second plug; a first piston in which at least one communication path through which the fluid passes is formed so as to be in close contact with the inside of the cylinder body and driven in a straight line to prevent sudden movement; an operating rod having one end fixed to the first piston and the other end passing through the first plug and connected to the pair of variable supports; and a first elastic member installed between the first piston and the first plug to provide an elastic force for transferring the first piston toward the second plug.

In this case, a communication path may be formed in the operation rod to communicate both regions partitioned by the first piston.

In this case, the communication path of the actuating rod may include a first communication path extending in a longitudinal direction from one end of the actuating rod, and a second communication path extending in a vertical direction from the end of the first communication path.

In this case, it may further include a second piston closely inserted into the outer surface of the operation rod to partition the space between the first piston and the first plug into both zones.

In this case, the first elastic member is installed between the first piston and the second piston, and a second elastic member is installed between the second piston and the first plug to generate an elastic force for pushing the second piston toward the first piston. can provide

At this time, a communication path is formed in the second piston in a vertical direction with respect to the longitudinal direction of the working rod, and when the first piston moves and comes into close contact with the second piston, the second communication path of the working rod is formed with the second piston It can be communicated with the communication path of

In this case, the passage area of the communication path may be formed such that the feed speed after the first piston and the second piston are brought into close contact with each other is reduced compared to the feed speed before the first piston comes into close contact with the second piston.

In this case, the second elastic member may provide a stronger elastic force than the first elastic member.

In this case, the pair of variable supports, one end is fixed to be rotatable on the upper plate, the other end is a first support fixed to be slidably installed on the first sliding guide fixed to the lower plate; a second supporter having one end rotatably fixed to the lower plate, the other end being slidably constrained to a second sliding guide fixedly installed on the upper plate, and rotatably connected to a portion of the first supporter by a rotation shaft; a link having one end rotatably connected to the other end of the second support; Connecting rods each rotatably connected to the other end of the pair of links, some of which are connected to the end of the working rod of the driving cylinder to be linearly driven on the horizontal surface of the lower plate; may include.

The second sliding guide may be provided with an elastic means for providing an elastic force so that the other end of the second support slides in an ascending direction.

According to the above configuration, the automatic height adjustment pillow according to the present invention can implement smooth and flexible operation using oil pressure for sudden movement when controlled only with a spring.

In addition, the automatic height adjustment pillow according to the present invention can effectively suppress the sudden sinking phenomenon that occurs when controlling only the existing spring by applying a double oil port and a double pitch spring when descending.

In addition, the automatic height adjustment pillow according to the present invention, the spring is located in the vacuum case containing the oil can suppress the noise that may be generated during sensitive operation during sleep.

1 is a perspective view of a no-load state of an automatic height adjustment pillow according to an embodiment of the present invention.
Figure 2 is an internal perspective view of the no-load state of the automatic height adjustment pillow according to an embodiment of the present invention.
3 is a perspective view of an internal mechanism in a no-load state of the automatic height-adjusting pillow according to an embodiment of the present invention;
Figure 4 is a perspective view of the maximum load state of the automatic height adjustment pillow according to an embodiment of the present invention.
Figure 5 is an internal perspective view of the maximum load state of the automatic height adjustment pillow according to an embodiment of the present invention.
6 is a perspective view of an internal mechanism of an automatic height adjustment pillow in a no-load state according to an embodiment of the present invention;
7 is an exploded perspective view of an automatic height adjustment pillow according to an embodiment of the present invention.
8 is a cross-sectional view of a driving cylinder that is a component of an automatic height adjustment pillow according to an embodiment of the present invention in an unloaded state.
9 is a cross-sectional view of an intermediate load of a driving cylinder, which is a component of an automatic height-adjusting pillow according to an embodiment of the present invention.
10 is a partially enlarged cross-sectional view of an operating state between a no-load intermediate load of a driving cylinder, which is a component of an automatic height-adjusting pillow according to an embodiment of the present invention;

The words and terms used in the present specification and claims are not to be construed as limited in their ordinary or dictionary meanings, but in accordance with the principle that the inventor can define terms and concepts in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea.

Therefore, the embodiments described in this specification and the configurations shown in the drawings correspond to a preferred embodiment of the present invention, and do not represent all of the technical idea of the present invention, so that the configuration may be replaced by various There may be equivalents and variations.

In this specification, terms such as "comprises" or "have" are intended to describe the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but one or more other features It should be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

The presence of an element "in front", "behind", "above" or "below" of another element means that, unless otherwise specified, it is directly in contact with another element, such as "front", "rear", "above" or "below". It includes not only being disposed at the “lower side” but also cases in which another component is disposed in the middle. In addition, that a component is "connected" with another component includes not only direct connection to each other, but also indirect connection to each other, unless otherwise specified.

Hereinafter, an automatic height adjustment pillow 1 according to the present invention will be described with reference to the drawings.

Automatic height adjustment pillow 1 according to an embodiment of the present invention, with reference to FIGS. 1 to 10 , a lower plate 40 , an upper plate 30 , a variable part 50 , and a height adjustment part 100 . include

The lower plate 40 is placed on the floor and supported with reference to FIGS. 2, 5 and 7 . That is, it means a floor on which pillows are placed, such as a floor or a bed.

At this time, the lower plate 40 serves to support all the loads of the upper plate 30 , the components, and the cushion member 20 positioned thereon, and to hold the center so as not to incline.

At this time, the lower plate 40 is provided with a rim 41, and a groove 40b for guiding the driving cylinder 110 and a groove 40a for guiding the guide sleeve 81 are formed in the center. . Since the operation is performed along these grooves, it is possible to prevent the upper plate 30 from being twisted or shaken in advance.

At this time, a seating groove 41a in which the second sliding guide 60 fixed to the upper plate 30 is seated is formed in the edge 41 of the lower plate 40 . This is to avoid interference when fully folded under full load.

The upper plate 30 is, with reference to FIGS. 2, 5, and 7, is installed so as to be lifted on the upper part of the lower plate 40 can support the load of the head.

In this case, the cushion member 20 may be fixed to the upper portion of the upper plate 30 . The cushion member 20 may have a curved surface 20a formed on its upper surface according to an ergonomic design.

At this time, like the lower plate 40 , grooves may be formed in the upper plate 30 to seat or guide parts.

2 to 10 , the variable part 50 is installed between the lower plate 40 and the upper plate 30 so that the height of the upper plate 30 varies according to the load applied to the upper plate 30 . However, a pair of X-shaped variable supports 53 and a driving cylinder 110 that provides an elastic driving force to the pair of variable supports 53 in a direction in which the height of the pair of variable supports 53 increases ) may be included.

By providing the variable part 50 in this way, the pillow height is varied in response to the load applied according to the sleeping posture, so that the correct sleeping posture can be maintained. In other words, in the supine position, a lot of head load is applied, and the height of the pillow is lowered so that the cervical vertebrae are curved in a gentle curve. can be placed horizontally.

The pair of variable supports 50 may include a first support 51 , a second support 52 , a link 70 , and a connecting rod 80 with reference to FIGS. 2 to 7 .

One end of the first support 51 may be rotatably fixed to the upper plate 30 , and the other end may be constrained to be slidably fixed to the first sliding guide 90 fixed to the lower plate 90 .

At this time, one end of the first support 51 is rotatably connected to the rotation support block 31 fixed to the upper plate 30 .

2 to 7 , one end of the second support 52 is rotatably fixed to the rotation support block 42 fixed to the lower plate 40 , and the other end is fixed to the upper plate 30 . The installed second sliding guide 60 is slidably constrained to be installed, and is connected to a portion of the first support 51 so as to be rotatably connected by a rotating shaft 53a to form an X-shaped frame.

At this time, referring to FIG. 7 , a spring 63 providing an elastic force so that the other end of the second support 52 slides in an upward direction may be installed in the second sliding guide 60 . Here, the rotation shaft 61 of the other end of the second support 52 is inserted into the slot of the second sliding guide 60, and the pushing member 62 is configured to push the rotation shaft 61 into the second sliding guide 60. installed inside And the spring 63 is assembled to the rear of the pushing member 62, and finally the nut member 64 can be assembled to support the spring 63 by blocking the inside.

At this time, the closer the distance between the upper plate 30 and the lower plate 40, that is, the lower the height of the pillow 1, the pushing member 62 is built-in by pressing the spring 63, while maintaining the lowest height. When adjusting the height of the pillow (1), it may serve to assist the initial tensile force.

One end of the link 70 may be rotatably connected to the other end of the second support 51 , and the connecting rod 80 is rotatably connected to the other end of the pair of links 70 , respectively, , some of which are connected to the end of the operation rod 111 of the driving cylinder 110 via the guide sleeve 81 to be linearly driven on the horizontal surface of the lower plate 40 .

At this time, due to the structure of the link 70 and the connecting rod 80, the pillow 1 does not tilt even when the height is adjusted, and the load can be stably supported. If it is supported only by a pair of X-shaped supports, it may become unstable because the pair of supports may be tilted in one direction as the height increases. This problem can be solved by the structure of the link 70 and the connecting rod 80 .

The height adjusting unit 100 is configured to set the limit of the height of the upper plate 30 by adjusting the position of the driving cylinder 110 .

At this time, the height adjusting unit 100 includes a connecting member 120 having one end connected to the second plug 114 of the driving cylinder 110 and a screw ( rotatably connected at the other end of the connecting member 120 ). 130), a nut block 140 fixed to the lower plate 40 and into which the screw 130 is inserted, and an adjustment knob fixed to the end of the screw 130 and rotating the screw 130 to adjust the height (150).

At this time, when the adjusting knob 150 is rotated according to the user's selection, the distance to the nut block 140 is adjusted while the screw 130 is rotated, and accordingly, the position of the driving cylinder 110 is changed and eventually the upper plate It becomes possible to adjust the height limit of (30).

On the other hand, the driving cylinder 110, referring to FIGS. 8 to 10, the cylinder body 112, the first piston 118, the operation rod 111, the second piston 115, the first elastic member ( 117) and a second elastic member 116 may be included.

The cylinder body 112 may be filled with a fluid, and both ends may be sealed with a vacuum filled with oil by the first plug 113 and the second plug 114 .

At this time, the cylinder body 112 is of course cylindrical, and the first plug 113 and the second plug 114 seal the cylinder body 112 by the O-rings 119 .

At this time, the working rod 111 is allowed to enter and exit the first plug 113 , and the connecting rod 80 may be connected to the end of the working rod 111 via the guide sleeve 115 , The connecting member 120 may be connected to the second plug 114 .

At this time, the oil, which is a fluid, is embedded in the cylinder body 112 to serve as a hydraulic damper.

The first piston 118 may be in close contact with the inside of the cylinder body 112 to be driven in a straight line, and at least one communication path 118a through which a fluid passes to prevent abrupt movement may be formed. Here, for example, two communication paths having a diameter of 0.5 mm may be formed.

One end of the operation rod 111 may be fixed to the first piston 118 , and the other end may pass through the first plug 114 to be connected to the pair of variable supports 50 .

In this case, the operation rod 111 may be formed with communication paths 111a and 111b for communicating both regions partitioned by the first piston 118 .

At this time, the communication paths 111a and 111b of the operation rod 111 include a first communication path 111a extending from one end of the operation rod 111 in the longitudinal direction, and the first communication path 111a. It may be formed of a second communication path 111b extending in the vertical direction from the end. Here, for example, the diameter of the first communication path 111a and the second communication path 111b may be 0.5 mm.

Accordingly, the oil path from no-load to mid-load in FIG. 8 corresponds to, for example, a total diameter of 1.5 mm, so that a faster oil flow can be achieved than from mid-load to maximum load, which will be described later.

The second piston 115 may be closely inserted into the outer surface of the operation rod 111 to partition the space between the first piston 118 and the first plug 113 into both zones.

At this time, the second piston 115 has a jaw formed on the outside of the large-diameter portion and the small-diameter portion, and one end of the first elastic member 117 is hung and supported on the jaw.

At this time, a communication path 115a is formed in the second piston 115 in a vertical direction with respect to the longitudinal direction of the operation rod 111 , and the first piston 118 moves to the second piston 115 . When in close contact, the second communication path 111b of the operation rod 111 may communicate with the communication path 115a of the second piston 115 . Here, the communication path 115a of the second piston 115 may have a diameter of, for example, 0.5 mm. Therefore, as shown in FIG. 9, the oil passage area from the middle load to the maximum load is designed to reduce the oil flow because the diameter is 0.5 mm.

At this time, the first elastic member 117 is installed between the first piston 118 and the second piston 115 , and a second elastic member is installed between the second piston 115 and the first plug 113 . A 116 may be installed to provide an elastic force for pushing the second piston 115 toward the first piston 118 .

As described above, the feed rate after the first piston 118 and the second piston 115 are in close contact with each other is lower than the feed rate before the first piston 118 is in close contact with the second piston 115 . The passage area of the communication path may be formed as much as possible.

In this case, the second elastic member 116 may provide a stronger elastic force than the first elastic member 117 . That is, it is possible to control the speed according to the flow of oil and control the speed by the difference in the elastic force of the two springs, so that the damping force can be doubled.

1 and 4 , the durable components including the upper and lower plates 30 and 40 are covered by the cover 10 and can be opened and closed by a so-called zipper 11 . The adjustment knob 150 is exposed to the outside of the cover 10, and the height of the pillow can be adjusted using this as described above. The cover 10 may have a curved surface 10a in the same shape as the cushion member 20 . Figure 1 is a state in which the maximum height as a no-load state, Figure 4 is a pillow in a state having the lowest height in the maximum load state.

2 , 3 , 5 and 6 , the lower plate 40 is placed on the floor or bedding such as a bed, and the height of the upper plate 30 is adjusted by the variable part 50 . That is, when a load is applied to the upper plate 30 in the no-load state of FIGS. 2 and 3 , the operation rod 111 starts to come out from the cylinder body 112, and when the maximum load is reached, it is lowered to a minimum height as shown in FIGS. 5 and 6 . do. Of course, the exposure length of the actuating rod 111 will be maximized at this time.

Referring to FIG. 8 , the inside of the driving cylinder 110 in a no-load state can be seen. The operation rod 111 is inserted into the cylinder body 112 as much as possible. In this state, when a load is applied to the upper plate 30 , the oil between the first piston 118 and the second piston 115 is transferred between the communication path 118a of the first piston 118 and the operation rod 111 . The first and second communication paths 111a and 111b of the first piston 118 and the second plug 114 begin to move into the region.

Referring to FIG. 9 , the inside of the driving cylinder 110 in an intermediate load state can be seen. The actuating rod 111 is protruding from the part of the cylinder body 112 . At this time, the first elastic member 117 is compressed as much as possible, and the first piston 118 and the second piston 115 are in close contact with each other to move together. From this time to the maximum load state, the oil flows in the order of the communication path 115a of the second piston 115 , the second communication path 111b of the second piston 115 , and the first communication path 111a . From this point on, the second elastic member 116 is moved while being compressed, and the communication area is also reduced and the elastic force of the second elastic member 116 is large, so that the movement speed is reduced compared to the applied load.

Referring to FIG. 10 , an intermediate state from the state of FIG. 8 to the state of FIG. 9 is shown. As a state before the first piston 118 is in close contact with the second piston 115 , the oil continues through the communication path 118a of the first piston 118 and the communication path 111a and 111b of the operation rod 111 . it is flowing

On the contrary, when the load goes to no-load under the maximum load or the intermediate load, the first piston 118 and the second piston 115 are unloaded as shown in FIG. 9 by the elastic force of the first elastic member 117 and the second elastic member 118. return to its original position.

Although the embodiments of the present invention have been described, the spirit of the present invention is not limited by the embodiments presented herein, and those skilled in the art who understand the spirit of the present invention can add or change components within the scope of the same spirit. Other embodiments can be easily proposed by , deletion, addition, etc., but this will also fall within the scope of the present invention.

1: Pillow
10: cover 20: cushion member
30: upper plate 40: lower plate
50: variable part 51: first support
52: second support 53: variable support
60: second sliding guide 70: link
80: connecting rod 81: guide sleeve
90: first sliding guide 100: height adjustment unit
110: drive slide 111: actuation rod
112: cylinder body 113: first plug
114: second plug 115: second piston
116: second elastic member 117: first elastic member
118: first piston 119: O-ring
120: connecting member 130: screw
140: nut block 150: adjustment knob

Claims (10)

lower plate;
The upper plate is installed to be liftable on the upper part of the lower plate to support the load of the head;
Installed between the lower plate and the upper plate so that the height of the upper plate is variable according to the load applied to the upper plate, a pair of X-shaped variable supports and the pair of variable supports in a direction in which the height of the pair of variable supports increases Including; and a variable portion including a drive cylinder that provides an elastic driving force to the variable support;
The driving cylinder is
a cylinder body filled with a fluid and closed at both ends by a first plug and a second plug;
a first piston in close contact with the inside of the cylinder body and having at least one communication path through which the fluid passes so as to be driven in a straight line and to prevent sudden movement;
an operating rod having one end fixed to the first piston and the other end passing through the first plug and connected to the pair of variable supports; and
a first elastic member installed between the first piston and the first plug to provide an elastic force for transferring the first piston toward the second plug;
including,
The actuating rod is formed with a communication path for communicating both regions partitioned by the first piston,
The communication path of the actuating rod consists of a first communication path extending in a longitudinal direction from one end of the working rod, and a second communication path extending in a vertical direction from the end of the first communication path,
Automatic height adjustment pillow further comprising a second piston closely inserted into the outer surface of the actuating rod so as to divide the space between the first piston and the first plug into both zones. delete delete delete According to claim 1,
The first elastic member is installed between the first piston and the second piston, and a second elastic member is installed between the second piston and the first plug to provide an elastic force for pushing the second piston toward the first piston , automatic height adjustment pillow. 6. The method of claim 5,
A communication path is formed in the second piston in a vertical direction with respect to the longitudinal direction of the working rod, and when the first piston moves and comes into close contact with the second piston, the second communication path of the working rod communicates with the second piston An automatic height-adjusting pillow in communication with the furnace. 7. The method of claim 6,
The passage area of the communication path is formed so that the feed rate after the first piston and the second piston are in close contact with each other than the feed speed before the first piston is in close contact with the second piston is formed, an automatic height adjustment pillow. 7. The method of claim 6,
The second elastic member provides a stronger elastic force than the first elastic member, automatic height adjustment pillow. lower plate;
The upper plate is installed to be liftable on the upper part of the lower plate to support the load of the head;
Installed between the lower plate and the upper plate so that the height of the upper plate is variable according to the load applied to the upper plate, a pair of X-shaped variable supports and the pair of variable supports in a direction in which the height of the pair of variable supports increases Including; and a variable portion including a drive cylinder that provides an elastic driving force to the variable support;
The driving cylinder is
a cylinder body filled with a fluid and closed at both ends by a first plug and a second plug;
a first piston in close contact with the inside of the cylinder body and having at least one communication path through which the fluid passes so as to be driven in a straight line and to prevent sudden movement;
an operating rod having one end fixed to the first piston and the other end passing through the first plug and connected to the pair of variable supports; and
a first elastic member installed between the first piston and the first plug to provide an elastic force for transferring the first piston toward the second plug;
including,
The pair of variable supports,
a first support having one end rotatably fixed to the upper plate and the other end being constrained to be slidably slidably installed on the first sliding guide fixed to the lower plate;
a second supporter having one end rotatably fixed to the lower plate, the other end being slidably constrained to a second sliding guide fixedly installed on the upper plate, and rotatably connected to a portion of the first supporter by a rotation shaft;
a link having one end rotatably connected to the other end of the second support;
A connecting rod rotatably connected to the other end of the pair of links, some of which are connected to the end of the working rod of the driving cylinder to be linearly driven on the horizontal surface of the lower plate; Containing, automatic height adjustment pillow. 10. The method of claim 9,
The second sliding guide is provided with an elastic means for providing an elastic force so that the other end of the second support slides in an ascending direction is installed, an automatic height adjustment pillow.

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