CN101332782A

CN101332782A - Headrest

Info

Publication number: CN101332782A
Application number: CNA2007101270826A
Authority: CN
Inventors: 糟谷隆
Original assignee: Tachi S Co Ltd
Current assignee: Tachi S Co Ltd
Priority date: 2007-06-28
Filing date: 2007-06-28
Publication date: 2008-12-31
Anticipated expiration: 2027-06-28
Also published as: CN101332782B

Abstract

A head protection head pillow comprises a decoration covering component; the decoration covering component is provided with a head receiving area used for being impacted by the head of a back seat passenger under an impact situation as well as an impact suction framework arranged in the decoration covering component. Reinforcing pieces are arranged on the points corresponding to the head receiving area on the inner surface of the decoration covering component, thus preventing the decoration covering component from cracking under the situation that the head of the back seat passenger impacts the head receiving area.

Description

Headrest

Technical field

The present invention relates to a kind of headrest that is used for automatic chair, relate in particular to such one type headrest, it has and the time is being sitting in the impact absorption framework that is provided with on the point that head clashed into of the passenger on the back seat when collision.

Background technology

When for example bumping, huge impact load is applied on the carbody, causes automobile to stop suddenly, impels the head of the passenger that takes a seat on the back seat to strike the headrest that is arranged on the front stall strongly again under the action of inertia forward the passenger that takes a seat like this.

For the strong head impact that this rear rider suffers, recurrent situation is that the cladded material of the front stall headrest that collides of head of passenger partly ruptures or comes off.

The headrest of known a kind of cephalic protection type has the impact absorption framework that is provided with therein, and this impact absorption framework is used to front stall, and the head that makes the impact absorption framework will receive rear rider also absorbs the impact that is delivered on it.

Yet just the rest the head on fracture of cladded material of the problems referred to above especially frequently occurs on this cephalic protection type headrest.This is because when the head of rear rider hit headrest, the cladded material of headrest and impact absorption framework excessive contact also finally ruptured there or come off.

In the open No.6-64548 of Japanese laid-open utility model, solution of the above problems has been proposed, it has instructed a kind of like this cephalic protection type headrest, wherein elastomeric cushion material twines the impact absorption framework in the headrest, prevents the excessive contact of the cladded material of resting the head on and impact absorption framework thus and guarantees to avoid the fracture of cladded material.

But this concrete prior art requires elastomeric cushion material to twine around the impact absorption framework, and therefore forming this layout in foaming process and other assembling process is trouble and difficulty, thereby causes the complex structure of resting the head on.

Summary of the invention

At above-mentioned defective, first purpose of the present invention provides a kind of improved cephalic protection type headrest of designs simplification.

In order to realize this purpose, the headrest that is provided with on front stall according to the present invention mainly comprises:

Decoration covering assemblies with inside face;

Be arranged in the head restraint frame in the described decoration covering assemblies;

Be fixed on the impact absorption framework on the described head restraint frame;

Foam stuffing in the described decoration covering assemblies is set;

Head receiving area on being limited in the described decoration covering assemblies a bit, this point is the point that is clashed under his or her action of inertia forward at the head that is landed in the rear rider on the back seat under the situation about bumping; And

With the corresponding point in described head receiving area on be arranged on reinforcement on the inside face of described decoration covering assemblies.

Second purpose of the present invention be with reinforcement be accurately positioned in the corresponding point in above-mentioned head receiving area on and positively hold it in the there in case the displacement.

For this reason, reinforcement can comprise the hardened material that is one with the described foam stuffing of being made by liquid blowing agent, originally described hardened material allows its material that floods described liquid blowing agent to make and via described specific liquid blowing agent dipping by attribute, the curing of this liquid blowing agent that is soaked with of reason in foaming process and obtain sclerosis, described foaming process comprise injecting liquid blowing agent and liquid blowing agent being solidified into to the inside of described decoration covering assemblies and are filled in the described foam stuffing of decorating covering assemblies.

Will be well understood to other a plurality of feature and advantage of the present invention by reading the description of hereinafter doing with reference to accompanying drawing.

Description of drawings

Fig. 1 is the perspective schematic view according to headrest of the present invention;

Fig. 2 is the cutaway view along the intercepting of the line II-II among Fig. 1;

Fig. 3 is the enlarged drawing of the round X intercepting from Fig. 2;

Fig. 4 is used for explanatory expression headrest to be arranged on the front stall and the head of rear rider hits the scheme drawing of the state of headrest;

Fig. 5 is used for the part sectional view that explanatory expression forms the foaming process of headrest;

Fig. 6 is the enlarged drawing of the round X ' intercepting from Fig. 5; And

Fig. 7 is the enlarged drawing of the round X intercepting from Fig. 2, and the expression reinforcement is fixedly connected on by adhesive agent and decorates on the covering assemblies.

The specific embodiment

With reference to Fig. 1-6, show schematic optimal way according to the headrest of totally representing by H of the present invention.

The cephalic protection type that headrest H comes down to be suitable for being installed on the front stall is rested the head on, and it has the head receiving area, is used in the impact that also absorbs such as the head that in emergency circumstances receives the passenger that takes a seat on the back seat that collides head.That is to say, as can see from Figure 4, headrest H is arranged on the spinal support SB of front stall FS, and have the head receiving area 1 that is defined on one point wherein, described point is the point of the head Ph bump of the rear rider P on back seat RS under the effect of inertia forward of specific passenger under case of collision as shown by arrows.

Should be noted that term " forward " or " onwards " refer to the front side F of armchair structure in the automobile cab shown in Figure 4 and headrest H shown in Figure 1, and term " backward " or " backward " refer to the rear side B of Fig. 4 and operator's compartment shown in Figure 1 and headrest.

In Fig. 1-3, can recognize, in general, headrest H mainly comprises: the three-dimensional with the head region of acceptance 1 that is limited to wherein decorates covering assemblies 10, be arranged in reinforcement 2, foam stuffing 3, the head restraint frame element 41 decorated on covering assemblies 10 and the described head receiving area 1 corresponding inside face, be suitable for a pair of

brace members

42,42 and the impact absorption framework 43 that link to each other with the top of front stall back of seat SB.

Decorating covering assemblies 10 can be by the 3D shape shown in being formed that following cladded material of separating is stitched together, this shape is consistent with the predetermined profile of headrest H, described cladded material of separating is: the first cladded material 10A, a pair of second

cladded material

10C, 10C, the 3rd cladded material 10B and the 4th cladded material 10D.

For illustrated embodiment, the first cladded material 10A has: the upper area 10A-1 that extends and half back to lateral region 10A-2 (referring to Fig. 2) of top basically that extend downwardly into the rear side (representing with B) of headrest H from this upper area 10A-1 on the upside of headrest H.Basically be limited to the described first cladded material 10A to the head receiving area 1 of lateral region 10A-2 to the above-mentioned back that half extends to the first cladded material 10A back from above-mentioned upper area 10A-1, as mentioned above, the specific region of this head receiving area 1 head Ph bump that is rear rider under the situation of bumping.

Head restraint frame 41 is arranged in the inside and the predetermined foaming process one embedding foam stuffing 3 by enforcement of decorating covering assemblies 10.Two sidepiece 41B of

head restraint frame

41,41B links to each other with corresponding two

brace members

42,42 one of the 4th cladded material 10D that vertically extends through headrest HD on downward direction or bottom.As shown in the figure, head restraint frame 41 is horizontal-extending in decorating covering assemblies 10, makes its forward direction cross section 41 be positioned to forward away from brace members 42, thereby has avoided the head Ph of rear rider to contact with head restraint frame 41.

Being formed substantially, the impact absorption framework 43 of reverse U shape structure also is arranged in the 10 interior also one embedding foam stuffings 3 of decoration covering assemblies.For example by corresponding two the sidepiece 41Bs of welding with

head restraint frame

41,41B links to each other securely for two sidepiece 43B of impact absorption framework 43,43B.As shown in Figure 2, the horizontal component 43A of impact absorption framework 43 is arranged near head receiving area 1, and this head receiving area 1 is limited on the first cladded material 10A that decorates covering assemblies 10.

According to the present invention, reinforcement 2 is formed to have and is equal to above-mentioned head receiving area 1 basically and fixedly is inserted in zone between the first cladded material 10A and the foam stuffing 3 at this 1 place, particular header receiving area.

Can recognize that from Fig. 5 and 6 reinforcement 2 for example can comprise basic material 21 (for example fabric) and foam plugger 22.In this case, before forming final foaming headrest H, reinforcement 2 is fixedly linked with the inside face 10A-i of the first cladded material 10A that decorates covering assemblies 10 at headrest 1 place, receiving area, make basic material 21 and inside face 10A-i closed contact, foam plugger 22 is towards the inboards of decorating covering assemblies 10 simultaneously.

In this respect, as can see from Figure 2, in the back place of sewing up to end 10Be of the end 10Ae and the second cladded material 10B of the first cladded material 10A, reinforcement 2 can by an one back to end 2E with decorate the fixing stitching of connecting bridge S that covering assemblies 10 has been sewed up.

Perhaps, alternatively, can recognize from Fig. 7 that the basic material 21 of reinforcement 2 can be fixedly connected on the inside face 10A-i of the first cladded material 10A by adhesive agent BN.

Assemble the stage in advance at this headrest, as shown in Figure 5, have the decoration covering assemblies 10 of captive joint above-mentioned reinforcement 2 thereon and be arranged in the upper die and lower die UD that wherein head restraint frame 41 is arranged in known foaming mould device, among the LD.Subsequently, liquid blowing agent 3 ' sprays into the inside of decorating covering assemblies 10 and the piece that is solidified into the foam stuffing 3 of increase by nozzle N.Therefore in this foaming process, emphasis is pointed out that foaming plugger 22 is soaked with liquid blowing agent 3 ', and after finishing foaming, foam plugger 21 condenses into hard plugger layer in the reinforcement 2 because of the curing of liquid blowing agent 3 ', shown in the R among Fig. 3.Like this, because this sclerosis of foaming plugger 21, basic material 21 juxtaposed with it has the strengthening effect of increase.

From the headrest H that forms thus, will recognize that under case of collision, when the head Ph of rear rider hit head receiving area 1 strongly, upwards regional area, reinforcement 2, foam stuffing 3 cooperatively interacted with the enormous impact of effective absorption by the strong bump generation of the head Ph of rear rider with these reinforcement 2 corresponding regional areas and impact absorption framework 3 to decorate covering

assemblies

10 and 1 corresponding back, head receiving area.

Especially; will recognize that the reinforcement 2 and the first cladded material 10A inside face 10A-i's and put the fracture of having guaranteed to prevent the specific first cladded material 10A; effectively avoided the head Ph of rear rider and contacting of impact absorption framework 43 thus, thereby protection head Ph escapes injury and damages.

Reinforcement 2 is not limited to the above-mentioned two-layer laminate structure that comprises basic material 21 and foam plugger 22, but can constitute by an integral material with very big thickness, this material for example comprises textile material or natural leather material or a single-piece synthetic resin material piece.

Like this, comprise at reinforcement 2 under the situation of above-mentioned basic material 21 and foam plugger 22, the advantage that can obtain is, in above-mentioned foaming process, foam plugger 22 is bonded to one because of the dipping of the liquid blowing agent 3 ' in the foam plugger 22 and curing hardening and with foam stuffing 3, therefore reinforcement 2 be accurately positioned in head receiving area 1 corresponding set point on, and positively remain there in case in foaming process, produce displacement.So more can guarantee stiffening effect, guarantee to prevent specific first cladded material 10A fracture thus the first cladded material 10A.

Although below described the present invention, should be realized that the embodiment of the present invention shown in being not limited to, but can be under the prerequisite of the scope that does not break away from this accessory claim the present invention be made any other modification, replace and replenish.For example, replace above-mentioned foaming process, can be independent of head restraint frame 41 and decorate covering assemblies 10, form foam stuffing 3 by a certain foaming process, the foam stuffing 3 that forms thus subsequently be arranged on the head restraint frame and after by decorating covering assemblies 10 coverings.

Claims

One kind with back seat associating, be arranged on the headrest on the front stall that is arranged in described back seat the place ahead, it comprises:

Decoration covering assemblies with inside face;

Be arranged in the head restraint frame in the described decoration covering assemblies;

Be fixed on the impact absorption framework on the described head restraint frame;

Foam stuffing in the described decoration covering assemblies is set;

Be defined in the head receiving area of any in described decoration covering assemblies, this point is the point that is clashed under the action of inertia forward of the head that is landed in the rear rider on the described back seat under the situation about bumping at described rear rider; And

With the corresponding point in described head receiving area on be arranged on reinforcement on the described inside face of described decoration covering assemblies.
2. headrest as claimed in claim 1, it is characterized in that, described reinforcement comprises the hardened material that is one with the described foam stuffing of being made by liquid blowing agent, originally described hardened material is made by having its material that floods the attribute of described liquid blowing agent of permission, and flooded by described specific liquid blowing agent, and this liquid blowing agent that is flooded of reason solidifies and obtains sclerosis in foaming process, and described foaming process comprises to the inside of described decoration covering assemblies injection liquid blowing agent, and liquid blowing agent is solidified into is filled in the described foam stuffing of decorating in the covering assemblies.
3. headrest as claimed in claim 1 is characterized in that, described reinforcement is fixedly linked by a kind of mode in stitching and the adhesive agent and the described inside face of described decoration covering assemblies.
4. headrest as claimed in claim 1, it is characterized in that, described reinforcement comprises basic material, and be the hardened material of one with the described foam stuffing of making by liquid blowing agent, originally described hardened material is made by possessing its material that floods the attribute of described liquid blowing agent of permission, and flooded by described liquid blowing agent, and this liquid blowing agent that is flooded of reason solidifies and obtains hardening in foaming process, described foaming process comprises to the inside of described decoration covering assemblies and injects described liquid blowing agent, and liquid blowing agent is solidified into is filled in the described foam stuffing of decorating in the covering assemblies, and, described basic material contacts with the described inside face of described decoration covering assemblies, and described hardened material and described basic material and put, simultaneously be one with described foam stuffing.
5. headrest as claimed in claim 1, it is characterized in that, described decoration covering assemblies is that the three-dimensional that is formed by multiple cladded material in the predetermined external structure of headrest is decorated covering assemblies, wherein said foam stuffing, described head restraint frame and described impact absorption framework all are arranged on described three-dimensional the decoration in the covering assemblies, wherein said reinforcement comprises the hardened material that is one with the described foam stuffing of being made by liquid blowing agent, originally described hardened material is made by having its material that floods the attribute of described liquid blowing agent of permission, and flooded by described liquid blowing agent, and this liquid blowing agent that is flooded of reason solidifies and obtains sclerosis in foaming process, and described foaming process comprises to the described three-dimensional inside of decorating covering assemblies and injects described liquid blowing agent, and liquid blowing agent is solidified into is filled in three-dimensional described foam stuffing of decorating in the covering assemblies.