CN206664365U - Chair headrest and seat - Google Patents

Abstract

The utility model discloses a kind of chair headrest and seat, the chair headrest includes：Lower headrest, the upper surface of the lower headrest are provided with slide rail, and the slide rail tilts down from back to front；Sliding block, the sliding block are slidably disposed in the slide rail；Upper headrest, the upper headrest are connected with the sliding block；Elastic component, the elastic component elastic connection is between the sliding block and the lower headrest；Pre- latch fitting, the pre- latch fitting are connected between the sliding block and the lower headrest, so that the elastic component keeps elastic stage in initial position, and are arranged to unlock when headrest is moved rearwards on described.The chair headrest of the utility model embodiment, the damage knocked into the back to occupant's neck, and simple in construction, handling ease can be effectively prevented, is easy to produce.

Description

Chair headrest and seat

Technical field

The utility model belongs to technical field of vehicle manufacture, in particular to a kind of chair headrest and has the seat The seat of headrest.

Background technology

The accounting to knock into the back in traffic accident is larger, and during knocking into the back, occupant's rocking in the car easily causes secondary injury. In correlation technique, chair headrest be all be fixed on by head rest pole it is motionless on backrest, automobile occur rear collision when, Occupant's incidence can not be timely close to chair headrest, and this easily causes neck injury, room for improvement be present.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model carries Go out one kind, it is described

According to the chair headrest of the utility model embodiment, including：Lower headrest, the upper surface of the lower headrest, which is provided with, to be slided Rail, the slide rail tilt down from back to front；Sliding block, the sliding block are slidably disposed in the slide rail；Upper headrest, it is described on Headrest is connected with the sliding block；Elastic component, the elastic component elastic connection is between the sliding block and the lower headrest；Prelock Part, the pre- latch fitting are connected between the sliding block and the lower headrest, so that the elastic component keeps elasticity in initial position State, and be arranged to unlock when headrest is moved rearwards on described.

According to the chair headrest of the utility model embodiment, the damage knocked into the back to occupant's neck can be effectively prevented, and It is simple in construction, handling ease, it is easy to produce.

According to the chair headrest of the utility model one embodiment, the longitudinal section of the upper headrest is trapezoidal, and the ladder The bottom of shape is located at front end, and hypotenuse is located at lower end.

According to the chair headrest of the utility model one embodiment, the upper headrest includes：Front end foaming structure and rear end Foaming structure, the expansion ratio of the front end foaming structure are more than the expansion ratio of the rear end foaming structure.

Alternatively, the expansion ratio of the front end foaming structure is 30~35, the expansion ratio of the rear end foaming structure For 20~25.

According to the chair headrest of the utility model one embodiment, the pre- latch fitting for hook, one end of the hook with The sliding block is connected, and the other end catches on the lower headrest.

Alternatively, described one end of the hook is rotationally connected with the sliding block.

Alternatively, it is described it is lower headrest also include be located at the slide rail rear end rear baffle, the elastic component with it is described after Baffle plate is connected, and the hook catches on the rear baffle.

According to the chair headrest of the utility model one embodiment, the elastic component is spring.

Alternatively, the stiffness coefficient of the spring is between 500N/mm~600N/mm.

The utility model also proposed a kind of seat, have as described above any one of chair headrest.

It is described with it is above-mentioned same relative to Dominant Facies possessed by prior art, will not be repeated here.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein：

Fig. 1 is the structural representation according to the seat of the utility model embodiment；

Fig. 2 is the seat structure that pre- latch fitting unlocks when occupant collides headrest backward according to the utility model embodiment Schematic diagram；

Fig. 3 be according to the seat of the utility model embodiment when being knocked into the back on rest the head on the structural representation of reach.

Reference：

Seat 1000,

Chair headrest 100,

Upper headrest 1, front end foaming structure 11, rear end foaming structure 12,

Sliding block 2, elastic component 3, hook 4,

Lower headrest 5, slide rail 51, rear baffle 52, front apron 53,

Head rest pole 6,

Backrest 200, cushion 300.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " axle To ", " radial direction ", the orientation of the instruction such as " circumference " or position relationship be based on orientation shown in the drawings or position relationship, be only for Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Chair headrest 100 below with reference to Fig. 1-Fig. 3 descriptions according to the utility model embodiment.

As shown in Figure 1-Figure 3, included according to the chair headrest 100 of the utility model one embodiment：Lower headrest 5, top Pillow 1, sliding block 2, elastic component 3 and pre- latch fitting.

Wherein, lower headrest 5 and upper headrest 1 can be that expanded material is made, and the appearance of lower headrest 5 and upper headrest 1 can be covered Covering is stamped, lower headrest 5 can be connected with the backrest 200 of seat 1000, can pass through headrest than following headrest 5 and backrest 200 Bar 6 is connected.

The upper surface of lower headrest 5 is provided with slide rail 51, and slide rail 51 tilts down from back to front, and upper headrest 1 is connected with sliding block 2, For example the top of sliding block 2 can be fixedly connected with the lower end of upper headrest 1, sliding block 2 is slidably disposed in slide rail 51, and sliding block 2 can Think rectangular block, upper headrest 1 can be slided by sliding block 2 along slide rail 51.

The elastic connection of elastic component 3 is between sliding block 2 and lower headrest 5, for example one end of elastic component 3 can be connected with sliding block 2, The other end of elastic component 3 can be connected with lower headrest 5, and pre- latch fitting is connected between sliding block 2 and lower headrest 5, so that elastic component 3 exists Initial position keeps elastic stage, and is arranged to unlock when upper headrest 1 is moved rearwards.

It is understood that in initial position (normal driving or parking), the relative position between sliding block 2 and lower headrest 5 Fixed, elastic component 3 is in elastic stage, such as elastic compression or elastic stretching, and elastic force has and makes what headrest 1 slid forward Trend.Elastic component 3 can be spring, such as, the stiffness coefficient of spring can be between 500N/mm~600N/mm.

When by car rear-end, the head back of occupant directes reach headrest 1, make headrest 1 and sliding block 2 along slide rail 51 backward Slide, and cause the relative displacement of sliding block 2 and lower headrest 5 so that the pre- latch fitting being connected between sliding block 2 and lower headrest 5 is solved Lock, the elastic force forward that elastic component 3 is applied to sliding block 2 can drive headrest 1 and sliding block 2 along slide rail 51 forward and to downslide It is dynamic, so that upper headrest 1 so can play preferable protective effect closer to the neck of occupant to the neck of occupant.

According to the chair headrest 100 of the utility model embodiment, the damage knocked into the back to occupant's neck can be effectively prevented, And simple in construction, handling ease, it is easy to produce.

According in a preferred embodiment of the present utility model, with reference to figure 1- Fig. 3, the longitudinal section of upper headrest 1 be it is trapezoidal, And trapezoidal bottom is located at front end, hypotenuse is located at lower end, and so, the area of the front end face of upper headrest 1 is big, to occupant's neck and head The Area of bearing in portion is big.

As shown in figure 1, upper headrest 1 can include：Front end foaming structure 11 and rear end foaming structure 12, front end foaming structure 11 expansion ratio is more than the expansion ratio of rear end foaming structure 12, and the expansion ratio of front end foaming structure 11 is 30~35, after The expansion ratio for holding foaming structure 12 is 20~25, and specifically, the front end 1/3 of upper headrest 1 is front end foaming structure 11, upper headrest 1 rear end 2/3 is rear end foaming structure 12.

That is, the elasticity of the front end of upper headrest 1 is more preferable, when directing reach neck and neck contact area it is bigger, cladding Feel stronger, pressure is smaller, and comfortableness and security are more preferable.

According in a preferred embodiment of the present utility model, with reference to figure 1- Fig. 3, pre- latch fitting can be hook 4, link up with 4 one end is connected with sliding block 2, for example one end of hook 4 can rotationally be connected with sliding block 2, can be provided with along a left side on sliding block 2 The hinge hole of right direction extension, the one end for linking up with 4 can be bent, and gos deep into hinge hole and sliding block 2 and be hinged, link up with 4 it is another Lower headrest 5 is caught in one end, can also include rear baffle 52 than following headrest 5, rear baffle 52 is located at the rear end of slide rail 51, elastic component 3 are connected with rear baffle 52, and hook 4 catches on rear baffle 52.

It is understood that as shown in Fig. 2 when by car rear-end, the head back of occupant directes reach headrest 1, makes Headrest 1 and sliding block 2 are slided backward along slide rail 51, and hook 4 is also moved rearwards therewith, and is departed from rear baffle 52, as shown in figure 3, Hook 4 rotates down around the hinge axes with sliding block 2 under gravity, and the elastic component 3 compressed loses the constraint of hook 4, Uphold forward, and promote sliding block 2, make the sliding downwards forward of headrest 1.

As shown in figure 1, lower headrest 5 can also include front apron 53, front apron 53 is located at the rear front end of slide rail 51, front apron 53 can play spacing effect, and anti-limited slip block 2 departs from slide rail 51.

Certainly, pre- latch fitting can also be other structures form, such as electrically-controlled valve, electronic lock etc..

The invention also discloses a kind of seat 1000.

As shown in Figure 1-Figure 3, the seat 1000 of the utility model embodiment has cushion 300, backrest 200 and chair headrest 100, chair headrest 100 is the chair headrest 100 of any of the above-described kind of embodiment.According to the seat of the utility model embodiment 1000, the damage knocked into the back to occupant's neck, and simple in construction, handling ease can be effectively prevented, is easy to produce.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe Structure, material or feature are contained at least one embodiment or example of the present utility model.In this manual, to above-mentioned art The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature can combine in an appropriate manner in any one or more embodiments or example.

While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that： These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (10)

1. A kind of 1. chair headrest, it is characterised in that including：

   Lower headrest, the upper surface of the lower headrest are provided with slide rail, and the slide rail tilts down from back to front；

   Sliding block, the sliding block are slidably disposed in the slide rail；

   Upper headrest, the upper headrest are connected with the sliding block；

   Elastic component, the elastic component elastic connection is between the sliding block and the lower headrest；

   Pre- latch fitting, the pre- latch fitting is connected between the sliding block and the lower headrest, so that the elastic component is in initial position Elastic stage is kept, and is arranged to unlock when headrest is moved rearwards on described.
2. 2. chair headrest according to claim 1, it is characterised in that the longitudinal section of the upper headrest is trapezoidal and described Trapezoidal bottom is located at front end, and hypotenuse is located at lower end.
3. 3. chair headrest according to claim 1, it is characterised in that the upper headrest includes：Front end foaming structure is with after Foaming structure is held, the expansion ratio of the front end foaming structure is more than the expansion ratio of the rear end foaming structure.
4. 4. chair headrest according to claim 3, it is characterised in that the expansion ratio of the front end foaming structure be 30~ 35, the expansion ratio of the rear end foaming structure is 20~25.
5. 5. chair headrest according to claim 1, it is characterised in that the pre- latch fitting is links up with, one end of the hook It is connected with the sliding block, the other end catches on the lower headrest.
6. 6. chair headrest according to claim 5, it is characterised in that described one end of the hook can turn with the sliding block It is connected dynamicly.
7. 7. chair headrest according to claim 5, it is characterised in that the lower headrest is also included after being located at the slide rail The rear baffle at end, the elastic component are connected with the rear baffle, and the hook catches on the rear baffle.
8. 8. chair headrest according to claim 1, it is characterised in that the elastic component is spring.
9. 9. chair headrest according to claim 8, it is characterised in that the stiffness coefficient of the spring 500N/mm~ Between 600N/mm.
10. 10. a kind of seat, it is characterised in that there is chair headrest as claimed in any one of claims 1-9 wherein.