CN200992160Y

CN200992160Y - Adjustable headrest

Info

Publication number: CN200992160Y
Application number: CN 200620157936
Authority: CN
Inventors: 陶桂东; 王冰松; 魏小娟
Original assignee: CSR Sifang Locomotive and Rolling Stock Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2006-11-13
Filing date: 2006-11-13
Publication date: 2007-12-19
Anticipated expiration: 2016-11-13

Abstract

The adjustable headrest of the utility model is disposed on the upper part of the rail vehicle seat backrest and installed on the vehicle wall partition, which comprises a positioning column that can be adjusted vertically along the headrest and the elastic balls in which the ends are embedded into the positioning column. The utility model selecting and passing through the height position of the elastic balls inside the annular positioning groove on the positioning column is provided with a connecting plate connected and fixed to a pillow. A mounting base arranged between the connecting plate and the partition wall is connected and fixed to the partition wall. A vertical guide post is arranged between the inboard upper and lower ends of the connecting plate and a plurality of annular positioning grooves are arranged in array along the horizontal direction of the guide post. A positioning device is also included, which fixed on the mounting base. The elastic end of the positioning device is embedded into the annular positioning groove of the guide post.

Description

Changeable cushion

Technical field

The utility model is a kind of head rest that carries out vertical height adjustment, and this head rest is applied to the seat unit of guideway vehicle particularly, belongs to mechanical manufacturing field.

Background technology

Urban track traffic has at present obtained developing rapidly, and for guaranteeing the high-speed cruising and the travelling comfort of guideway vehicle, the existing seat that provides for the passenger generally adopts the high back framework, and for leaning on head design-calculated head rest structure.

Because passenger's concrete height is also uncertain, so the conventional seat head rest is determined by average human height.Too high or cross when short when passenger's stature, this fixed head rest can not be given a kind of comfortable sensation of people.For the passenger of long-term travel, can produce comparatively tired and uncomfortable property especially.

The utility model content

Changeable cushion described in the utility model, be to address the above problem and not enough and adjustable positioning device is installed between car body partition and head rest, comprise and to carry out the registration mast of vertical adjusting and the resilient balls that the end is embedded into registration mast with head rest, by selecting the height and position in the circular orientation groove of resilient balls on registration mast.

Design goal of the present utility model is, realizes a kind of structure and the method that can regulate the relative height between head rest and the seat according to the concrete height of passenger, and the vertical adjusting of head rest has certain alerting ability, and operation is simple.

For realizing above-mentioned design goal, the seat of described changeable cushion and guideway vehicle is split type setting, and it has:

A plate, this connecting panel and bolster are connected and fixed;

One mount pad is set between connecting panel and partition, and this mount pad and partition are connected and fixed;

One vertically-guided post is set between the inboard upper and lower end of connecting panel, is arranged with several circular orientation grooves along the horizontal direction setting of guidepost;

One location device, this registration device is fixed on the mount pad, and the elastic ends of registration device is embedded in the circular orientation groove of guidepost.

As the changeable cushion of above-mentioned scheme, when the passenger regulates the vertical height of head rest according to himself height, upwards lift or when pushing bolster downwards, bolster drives connecting panel and drives by connecting panel that guidepost is upper and lower to be moved.At this moment, the elastic ends of registration device makes progress successively or is embedded into downwards in each circular orientation groove of guidepost, when guidepost stops vertical when mobile, the elastic ends of registration device rests in a certain detent, simultaneously registration device plays location, fixing effect to guidepost, changes relative static conditions between registration device and the guidepost once more until use external force.

For improving flexible adjustment and the location between registration device and the guidepost, described guidepost is set in the vertical through hole of mount pad, and described registration device is set in the horizontal side of mount pad in through hole.

Further improving design is, described registration device comprises a bolt, and the end of bolt is provided with a spring, and the other end of spring connects a ball, is positioned at the sheathed nut in end in the mount pad outside at bolt.

In the vertical through hole of guidepost at mount pad when mobile, ball is extrusion spring by the guidepost lateral pressure and outwards, and spring is compressed and ball withdraws from from a certain detent of guidepost.

Roll into another detent instantaneous of guidepost when ball, the elastic force release meeting of spring is pressed to ball in the detent again.If this moment, guidepost stopped vertical moving, then ball will rest in this groove and effect that guidepost is played location, fixes, unless external force changes the relative static conditions between registration device and the guidepost once more.

In addition, also can be provided with two side direction through holes, and the registration device of said structure is arranged on symmetrically the both sides of mount pad in the both sides of mount pad.

Consider in actual use, the difference of guideway vehicle operation geographic area, passenger's height can be distinguished to some extent.When being used for China's southern area when guideway vehicle, passenger's stature is shorter, and then with respect to the standard size of seat, head rest needs downward adjusting basically; When guideway vehicle was used for the northern area of China, passenger's stature was higher, and then head rest needs basically to adjusted.

Use for convenient most of passengers' adjusting, a torsion spring is set between described connecting panel and mount pad, an end of torsion spring is fastened on the connecting panel, and the other end of torsion spring is fastened on the vertical side end of mount pad.

When needs are regulated head rest up or down, can be by means of the torsion of torsion spring comparatively like a cork to a side direction mobile guide post.

Content to sum up, described changeable cushion has the following advantages:

1, regulate the vertical height of head rest by the passenger neatly according to height, operation is simple.

2, can regulate like a cork in conjunction with the location of the elasticity between guidepost and the registration device, and by means of the elastic force of torsion spring, time saving and energy saving.

Description of drawings

Now in conjunction with the following drawings the utility model is described further

Fig. 1 is the structural representation of described guideway vehicle seat;

Fig. 2 is the cross-sectional view of described head rest;

Fig. 3 is the side direction generalized section of Fig. 2;

As shown in Figure 1 to Figure 3, seat 10, backrest 11, seat cushion 12,

Connecting panel 1, partition 2, bolster 3, mount pad 4, vertical through hole 41, side direction through hole 42, guidepost 5, detent 51, bolt 61, spring 62, ball 63, nut 64, torsion spring 7.

The specific embodiment

Embodiment 1, as shown in Figure 1 to Figure 3, is applied to the seat 10 of guideway vehicle, has backrest 11 and seat cushion 12.Wherein,

Described changeable cushion, comprise the connecting panel 1 that is fastened on the bolster 3, one mount pad 4 is set between connecting panel 1 and partition 2, and vertically-guided post 5 is connected between the inboard upper and lower end of connecting panel 1, is arranged with several circular orientation grooves 51 along the horizontal direction setting of guidepost 5.

Guidepost 5 is set in the vertical through hole 41 of mount pad 4, is provided with two side direction through holes 42 in the both sides of mount pad 4.

2 bolts 61 of registration device are set in respectively in the side direction through hole 42, and the end of bolt 61 is respectively equipped with a spring 62, and the other end of spring 62 connects a ball 63, are positioned at the sheathed nut 64 in end in mount pad 4 outsides at bolt 61.

One end of torsion spring 7 is fastened on the connecting panel 1, and the other end of torsion spring 7 is fastened on the upper end of mount pad 4.

When the passenger regulates the vertical height of head rest according to himself height, upwards lift or push bolster 3 downwards, bolster 3 drives connecting panels 1 and drives guidepost 5 upper and lower moving by connecting panel 1.

When guidepost 5 was mobile in vertical through hole 41, ball 63 is extrusion spring 62 by guidepost 5 lateral pressures and outwards, and spring 62 is compressed and ball 63 withdraws from from a certain detent 51 of guidepost 5.

The elastic force release meeting of spring 62 is pressed to ball 63 in another detent 51 again, if this moment, guidepost 5 stopped vertical moving, then ball 63 will rest in this groove and effect that guidepost 5 is played location, fixes.

When needs are regulated head rest downwards, by means of the torsion of torsion spring 7 can be comparatively like a cork mobile guide post 5 downwards.

Claims

1, a kind of changeable cushion, with the seat of guideway vehicle be split setting, it is characterized in that: have a plate, this connecting panel and bolster are connected and fixed;

2, changeable cushion according to claim 1 is characterized in that: described guidepost is set in the vertical through hole of mount pad, and described registration device is set in the horizontal side of mount pad in through hole.

3, changeable cushion according to claim 1 and 2 is characterized in that: described registration device comprises a bolt, and the end of bolt is provided with a spring, and the other end of spring connects a ball, is positioned at the sheathed nut in end in the mount pad outside at bolt.

4, changeable cushion according to claim 3 is characterized in that: the both sides of described mount pad are provided with two side direction through holes, and described registration device is arranged on the both sides of mount pad symmetrically.

5, changeable cushion according to claim 4 is characterized in that: a torsion spring is set between described connecting panel and mount pad, and an end of torsion spring is fastened on the connecting panel, and the other end of torsion spring is fastened on the vertical side end of mount pad.