CN1029455C

CN1029455C - Back cushion device

Info

Publication number: CN1029455C
Application number: CN 93118803
Authority: CN
Inventors: 张春
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-07
Filing date: 1993-10-07
Publication date: 1995-08-09
Anticipated expiration: 2013-10-07
Also published as: CN1090740A

Abstract

The invention relates to a back cushion device for lying, the cushion surface of which can be changed to adapt to the requirements of different human bodies. It is composed of a cushion frame, several cam axles supported by bearings on the cushion frame, power source and brake unit on the cam axles, cushion backing surface consisting of cushion component on the cam axles and with its return stroke kept by elastic part, and cushion backing surface with different shapes formed by the cushion component changing with the rotation of cam axles.

Description

Cushion device

The present invention is the bolster apparatus of a kind of confession by the usefulness that crouches, and can be installed on the chair on the long-distance sleeping car and other place that is suitable for.

Present back cushion, have rigid with soft, the rigid shape that makes fixing suitable Human Physiology curve that has, but its only suitable Human Physiology curve people close with it, it is neither too hard, nor too soft that soft back cushion is generally all done, but the people is by crouching up and not exclusively being the Human Physiology curve, have only back cushion very soft, the people just is the Human Physiology curve fully by crouching up, but this back cushion and uncomfortable makes the people produce fatigue easily.

Purpose of the present invention provides the transformable bolster apparatus of a kind of cushion surface, so that people are more comfortable by crouching up.

This specification and later claims, the described several words of summary are to explain like this.

Camshaft: as Fig. 1, be equivalent to one group of cam and be superimposed, the projection profile of cam presented different curves when it rotated along axle.

Cam post: as Fig. 2, refer to the enough cams of camshaft epipodium unlimited near and form ganoid cylinder.

Bar is placed on the camshaft; As Fig. 3, refer to that the bar 9-1 that will not have groove places the bar 9-2 that groove maybe will be arranged on the groove cam ring 1-1-1 on the camshaft to place on the cam 1-1-2 outstanding on the camshaft, as Fig. 4, pulley 9-3 can be equipped with in the position that contacts with camshaft on this bar.

Back cushion spare: the part of forming cushion surface.

Brake component: as Fig. 5, the axle 6 that is braked is passed the opening ring-type spring leaf 7-1-3 that the inboard is fixed with brake rubber block 7-1-2, the opening part of this ring-spring sheet is fixed with clamping plate 7-1-4, support member 7-1-5 is arranged in the crack of this clamping plate, the end of support member 7-1-5 and bar 7-1-6 is fixed, the other end of bar 7-1-6 is equipped with handle 7-1-1, and plate fixed handle 7-1-1 can realize braking.

Electromagnetic brake: this brake such as Fig. 6 are analogous to brake component, just on the clamping plate 7-2-4 solenoid 7-2-7 are installed, and the opening of clamping plate is to be realized by the magnetic force that solenoid 7-2-7 produces.

Above brake component and electromagnetic brake also can be by existing aor brakes, electric pneumatic breaking device, replacements such as train brake.

The present invention is achieved in that on the back cushion frame, by the some camshafts of bearings, power source and brake apparatus is installed on the camshaft, and cushion surface is by placing on the camshaft, keeping the back cushion spare of its backhaul to form by elastic component.Like this, when camshaft is accepted power and rotated, place the back cushion spare on the camshaft just to change by the characteristics of motion of the decision of the cam on the camshaft, its curve that axially just presents the camshaft decision of the cushion surface that back cushion spare is formed along camshaft, cushion surface just presents different curves, select needed curved surface, select needed curved surface, get final product by the brake apparatus braking.

Also transmission mechanism and decelerator can be installed between camshaft and power source, brake apparatus also can be installed on the transmission mechanism, like this, can reduce the speed of rotation of camshaft.

The cushion surface of said apparatus can be that the bar as back cushion spare of some parallel placements is formed, bar is placed on the camshaft of at least two parallel placements, a fixing end of elastic component on each bar, the other end of elastic component is fixed on the back cushion frame, like this, elastic component just makes bar be close to camshaft, and the scope of activities of restriction bar.

Its cushion surface also can be made up of the back cushion spare that is installed on the movable guiding rail, and movable guiding rail is formed guideway with the supporting guide that is installed on the back cushion frame, keeps contacting of movable guiding rail and camshaft by spring.

Its cushion surface can also be the blind-like article of making by as the bar of back cushion spare, blind-like article is placed on the cam post as camshaft, be fixed with elastic component below this blind-like article, the other end of elastic component is fixed on the carrying pad frame, and this elastic component keeps blind-like article to be close to cam post.

The shape of the rotating and projection profile of the camshaft of said apparatus.Can be the human body back physiological curve that several bendings are arranged, along with the rotation of camshaft, its projection profile presents different human body back physiological curves, it can also be wavy curve, along with the rotation of camshaft, its projection profile is and springs up wave, can play massage effect.

Device provided by the present invention, its back cushion)) shape of curve makes the people more comfortable by crouching up, and it can also be and springs up wave, plays the effect of massage.It is worthy of note, it has broken the fixedly limitation of cushion surface, the transformable cushion surface that provides people not relate to as yet so far can impel people to utilize the manufacturing of this device to be more suitable for the cushion surface of people by crouching and needing, and has played positive effect to what improve people by condition for sleeping in.

Be described further below in conjunction with drawings and Examples.

Fig. 1: camshaft partial cutaway diagrammatic sketch

Fig. 2: cam post schematic perspective view

Fig. 3: bar is placed partial sectional view on the camshaft

Fig. 4: the partial sectional view that pulley is installed on the bar

Fig. 5: brake component schematic perspective view

Fig. 6: electromagnetic brake schematic perspective view

Fig. 7: this installs manual structural representation

Fig. 8: this device electric structure schematic diagram

Fig. 9: the electric structure schematic diagram that transmission mechanism is installed

Figure 10: a kind of broken section structural representation that is installed in the cushion surface on the camshaft

Figure 11: the perspective view that places the blind-like article on the cam post

Figure 12: human body back physiological curve coordinate schematic diagram

Embodiment 1: as Fig. 7, on back cushion frame 2-1 and 2-2, support two parallel camshaft 1-1 and 1-2 by bearing 3-1 and 3-2, rotary handle 8-1 and 8-2 and brake component 7-1 and 7-1 ' are installed on camshaft, handle 7-1-1 and 7-1 '-1 arranged on the brake component, its cushion surface is made up of the bar 9 as back cushion spare, place on camshaft 1-1 and the 1-2 bar is parallel, be fixed with spring 10-1 below the bar, the other end of spring 10-1 is fixed on the back cushion frame 2-4, and the outside is surrounded by sponge bedding and padding 11 and high-tension acrylic fibers lining 12.Rotation rotary handle 8-1 and 8-2 just can obtain difform cushion surface, reach the shape that needs, and are got final product by brake component 7-1 and 7-1 ' braking.

Embodiment 2, as Fig. 8, this embodiment is analogous to embodiment 1, its power source is mounted in motor 15-1 and the 15-2 on back cushion frame 2-8 and the 2-9, brake apparatus is mounted in electromagnetic brake 7-2 and the 7-2 ' on back cushion frame 2-8 and the 2-9, and 7-2-7 and 7-2 ' the-the 7th, and solenoid is equipped with movable guiding rail 13-1 below bar, it forms guideway with the supporting guide 14-1 that is installed on the back cushion frame, with switch control motor 15-1 and 15-2 and electromagnetic brake 7-2 and 7-2 '.Connect power supply, the magnetic force that is produced by solenoid is alleviated brake, the rotation of motor drives camshaft, guideway can limit the bar scope of activities better, after reaching the cushion surface that needs, deenergization, motor stops the rotation, and the magnetic force of electromagnetic brake disappears, and the elastic force of spring leaf is braked brake.

Embodiment 3 is analogous to embodiment 2 as this embodiment of Fig. 9, its camshaft 1-1 and 1-2 are identical, they install identical worm gear 4-1 and 4-2, worm gear 4-1 and 4-2 form worm gear pair with identical worm screw 5-1 and the 5-2 that are supported by bearing 3-3 and 3-4, the electromagnetic brake 7-2 and the travelling gear 18 that are fixed on the back cushion frame 2-3 are installed on the worm shaft 6, motor 15 and decelerator 16 are installed on back cushion frame 2-6, decelerator 16 connects by flexible rack 17 and gear 18, motor 15 and electromagnetic brake 7-2 are controlled by switch, after connecting power supply, electromagnetic brake is alleviated, motor driving reducer, decelerator is by the flexible rack driven gear and then drive the worm gear pair rotation, and worm gear pair drives camshaft and rotates lentamente, and cushion surface just is two dimension to be changed.When reaching the curved surface that needs, powered-down.The transmission mechanism of this embodiment also can be by belt pulley, chain pair, gear pair and their replacements such as combination.

Embodiment 4, and this embodiment is analogous to embodiment 3.The shape of its camshaft 1-1 and 1-2 is plane symmetry, and worm gear 4-1 and 4-2 and worm screw 5-1 and 5-2 also are plane symmetry.

Embodiment 5, this embodiment is analogous to embodiment 1, as Figure 10, it has three camshafts, its corresponding mechanism also will increase, and its cushion surface is made up of the back cushion spare 19 that is installed on the movable guiding rail 13-2, and movable guiding rail 13-2 and the supporting guide 14-2 that is installed on the back cushion frame form guideway, lead the backhaul of 13-2 by spring 10-2 maintenance activity, the length of the movable guiding rail 13-2 of present embodiment can be unequal.Like this, the curve master on the cushion surface of cushion surface upper edge camshaft just is the curve that is determined of camshaft.The shape of camshaft also can be different, and cushion surface just is three dimensional change like this, and the shape of back cushion spare 19 can be sheet, strip, in order to a certain position of body support, also can be spherical, pointed, in order to a certain position that harmonizes the body.

Embodiment 6, and this embodiment is analogous to embodiment 1, as Figure 11, its cushion surface is to have the bamboo curtain splint 20 that the bamboo bar of certain bullet degree is made, camshaft is a cam post 21, and bamboo curtain splint 20 is placed on the cam post 21, keeps bamboo curtain splint 20 to be close to cam post by the spring that is fixed on the back cushion frame below.

Embodiment 7, this embodiment is analogous to embodiment 1, the throwing shape profile of its camshaft such as Figure 12 are human body back physiological curve Ω, Ω last each mainly put in plane right-angle coordinate XOY and in following scope, change: the point of contact A of buttocks and Y-axis: { (x, y) | x=0.9/100h≤y≤13/100h } third lumbar vertebra point B: { (x, y) | 20≤x≤60,31/100h≤y≤37/100h}; Shoulder blade summit C{(x, y) | x=0.56/100h≤y≤62/100h}; Hindbrain summit D: (x, y) | 0≤x≤80,86/100h≤y≤89/100h }, wherein h is the human body sitting height, unit is a millimeter.The bolster apparatus that the camshaft of this shape is made is fit to the physiological curve of different human body.

Embodiment 8: this embodiment is analogous to embodiment 1, and the face that the profile of the cam of its camshaft is formed is the screw-like curved surface, and the projection profile of camshaft is wave.

Claims

1, a kind of bolster apparatus is made up of cushion surface and back cushion frame, it is characterized in that on the back cushion frame, by the some camshafts of bearings, dynamic source and brake apparatus on the camshaft, its cushion surface are by placing on the camshaft, keeping the back cushion spare of its backhaul to form by elastic component.

2, device as claimed in claim 1, it is characterized in that cushion surface is the bar composition as back cushion spare of some parallel placements, bar is placed on two parallel camshafts at least, a fixing end of elastic component on each bar, the other end of elastic component is fixed on the back cushion frame.

3, device as claimed in claim 2, it is characterized in that bar below movable guiding rail is installed, this movable guiding rail is formed guideway with the supporting guide that is installed on the back cushion frame, the position that contacts with camshaft on the bar is equipped with pulley.

4, device as claimed in claim 1 is characterized in that cushion surface is the blind-like article of making by as the bar of back cushion spare, blind-like article is placed on the cam post as camshaft, be fixed with elastic component below this blind-like article, the other end of elastic component is fixed on the back cushion frame.

5, as claim 2 or 4 described devices, it is characterized in that camshaft is identical or is plane symmetry, its rotating and projection profile is different human body back physiological curve.

6, device as claimed in claim 5, it is characterized in that camshaft rotating and projection profile is the human body back physiological curve, each is mainly put in plane right-angle coordinate XOY and changes in following scope on the curve, the point of contact A of arm and Y-axis: { (x, y) | x=0.9/100h≤y≤13/100h } third lumbar vertebra point B: { (x, y) | 20≤x≤60,31/100h≤y≤37/100h }; Shoulder blade summit C: (x, y) | x=0.56/100h≤y≤62/100h }; Hindbrain summit D: (x, y) | 0≤x≤80,86/100h≤y≤89/100h }, wherein h is the human body sitting height, unit is a millimeter.

7,, it is characterized in that the rotating and projection profile of camshaft is to spring up wave as claim 2 or 4 described devices.

8, device as claimed in claim 1 is characterized in that cushion surface is made up of the back cushion spare that is installed on the movable guiding rail, and movable guiding rail is formed guideway with the supporting guide that is installed on the back cushion frame, keeps contacting of movable guiding rail and camshaft by spring.

9, device as claimed in claim 1 is characterized in that power source is a rotary handle, and brake apparatus is a brake component.

10, device as claimed in claim 1 is characterized in that power source is a motor, and brake apparatus is an electromagnetic brake.

11, device as claimed in claim 10 is characterized in that between camshaft and motor, and transmission mechanism and decelerator are installed, and electromagnetic brake is installed on the transmission mechanism.

12, device as claimed in claim 1 is characterized in that the outside is surrounded by cushion(ing) material and elastic fabric.