JP2022087972A - Headrest device - Google Patents

Abstract

To provide a headrest device that attains any one or multiple of miniaturization and weight reduction of a headrest, securing of indoor visibility, or in-car air circulation or resolution of "sanmitsu" (closed space, gathering, close contact).SOLUTION: A headrest A is attached via a support 5 inserted into a bracket 3 installed on a seat 1 and a headrest stay 6 housed in the support 5. The headrest A is configured with means for securing the length of the support 5 or the stay 6 for forming a space between an upper surface of the seat 1 and an under surface of the headrest A. The space is formed between the upper surface of the seat 1 and the under surface of the headrest A, and with the space formation, miniaturization or weight reduction of the headrest, security of indoor visibility, or security of indoor cleanliness/resolution of "sanmitsu" can be achieved utilizing in-car air circulation.SELECTED DRAWING: Figure 1

Description

The present invention relates to a headrest device that forms a space between the upper surface of the seat and the lower surface of the headrest to reduce the size and weight of the headrest, ensure indoor visibility, air flow in the vehicle, eliminate three-csightness, and the like.

The conventional relationship between the headrest and the seat has, for example, the structure shown in FIG. That is, in the disassembled scale schematic diagram illustrating the relationship between the headrest (1000) and the seat (1001), the upper frame (1002) constituting the seat (1001) is provided with a pair of brackets (1003). A pair of headrest supports (1005) and a pair of headrest stays (1006) are inserted and supported in the bracket (1003) so that the headrest (1000) can be attached to the seat (1001) and the seat (1001) can be attached to the seat (1001). As a general rule, the space H is not formed between the upper surface (1001a) of the 1001) and the lower surface (1000a) of the headrest (1000).

Therefore, there is a problem in achieving any one or more of the objectives such as miniaturization and weight reduction of the headrest (1000), ensuring indoor visibility, air circulation in the vehicle, and elimination of three densities.

As an example of forming a space H between the upper surface (1001a) of the seat (1001) and the lower surface (1000a) of the headrest (1000), for example, a headrest support (1005) or a headrest stay (1006). ) Can be considered as a means to secure the length.

For example, Japanese Patent Application Laid-Open No. 2004-34546 (Reference (1)) describes a means for ensuring the length of a headrest support or a headrest stay in order to form a space between the upper surface of the seat and the lower surface of the headrest. The headrest device having the configuration including the above is not disclosed. That is, the document (1) is a lower cylinder member shown in paragraphs 0906 of the specification, FIGS. 20 to 23, and is a headrest support structure in which the lower cylinder member is attached to the lower side of the headrest support. .. INDUSTRIAL APPLICABILITY The present invention is vibration prevention and rattling prevention of a headrest support (headrest stay).

Japanese Unexamined Patent Publication No. 2004-345463

Certainly, in document (1), it seems to be effective in preventing vibration and rattling. However, by forming a space between the upper surface of the seat and the lower surface of the headrest, which is intended by the present invention, the headrest can be made smaller and lighter, indoor visibility can be ensured, air circulation in the vehicle, or three denseness. There is room for improvement as a headrest device that aims to eliminate one or more of them.

Then, claim 1-8 is proposed to achieve the object of the present invention.

Claim 1 is a headrest attached to a seat via a pair of headrest supports inserted into a pair of brackets mounted on the seat and a pair of headrest stays housed in the pair of headrest supports.
It is a headrest device configured to include a headrest support or a means for ensuring the length of the headrest stay in order to form a space between the upper surface of the seat and the lower surface of the headrest.

Thereby, the effect of claim 1 forms, for example, a space between the upper surface of the seat and the lower surface of the headrest. By forming this space, it is possible to secure the cleanliness of the room and / or eliminate the three-csightness by using the miniaturization and weight reduction of the headrest, ensuring the visibility in the room, and the air circulation in the car.

The second aspect of the present invention is a headrest device having a support bush attached to the lower end of the headrest support and / or a cushioning material as a means for ensuring the length.

Thereby, the effect of claim 2 becomes the same as that of claim 1, and it is possible to provide a support bush that is useful for achieving this effect.

A third aspect of the present invention is a headrest device in which the support bush is configured to be locked to one or a plurality of locking portions of a bracket or a headrest support.

Thereby, the effect of claim 3 becomes the same as that of claim 2, and the structure of the support bush that is useful for achieving this effect can be disclosed.

A fourth aspect of the present invention is a headrest device having a structure in which the means for ensuring the length is a stopper provided between the inner bottom of the bracket and the outer bottom of the headrest stay, and / or a cushioning material.

Thereby, the effect of claim 4 becomes the same as that of claim 1, and a stopper that is useful for achieving this effect can be provided.

A fifth aspect of the present invention is a headrest device in which the stopper is configured to be locked between the inner bottom of the bracket and the outer bottom of the headrest stay.

Thereby, the effect of claim 5 becomes the same as that of claim 4, and it is possible to provide a stopper useful for achieving this effect.

A sixth aspect of the present invention is a headrest device having a load receiving stopper and / or a cushioning material attached to the lower end of the headrest support as a means for ensuring the length.

A seventh aspect of the present invention is a headrest device in which the load receiving stopper is provided at the upper and lower ends of the bracket and / or the headrest support, and is configured to be locked to one or a plurality of locking portions.

A eighth aspect of the present invention is a headrest device having a structure in which a support cap and / or a cushioning material is attached to or attached to the headrest support as a means for ensuring the length.

Thereby, the effect of claim 6-8 becomes the same as that of claim 1, and it is possible to provide a load receiving stopper or a support cap which is useful for achieving this effect.

Schematic diagram of the entire disassembled scale explaining the relationship between the headrest and the seat Perspective view of the first embodiment (example in which a bush is attached) Front view of the main part of the first embodiment Side view of the main part of the first embodiment AA sectional view of FIG. 3 in the first embodiment. BB sectional view of FIG. 4 in the first embodiment. An enlarged cross-sectional view showing the relationship between the bracket, the headrest support, and the headrest stay of the first embodiment. The relationship between another bracket of the first embodiment, the headrest support, and another headrest stay is shown, (a) is an enlarged cross-sectional view, (b) is a cross-sectional view showing the main part of the locking relationship, (c). Is a cross-sectional view that visualizes a part of the view from the front, which is the whole view except the stay. The relationship between the headrest support and another bracket of the first embodiment is shown, (a) is an enlarged cross-sectional view, (b) is an end view of a main part using a rectangular bracket, (b). C) is an end view of the main part using a bracket with a different shape, (d) is an enlarged cross-sectional view of the main part, (e) is an enlarged cross-sectional view of other main parts, and (f) is an overall view except for the stay. Cross-sectional view that visualizes a part visually recognized from the front direction In the first embodiment, the relationship between the other brackets, the headrest support, and the other headrest stays is shown. C) is an end view of the main part using a bracket with a different shape, and (d) is an enlarged cross-sectional view of the main part. A cross-sectional view that visualizes a part of the view from the side view as a whole except for the stay in FIG. 10-1. In the second embodiment (an example in which the load receiving stopper is attached), the locking relationship between the load receiving stopper, the bracket, the headrest support, and the headrest stay is shown. Enlarged cross-sectional view of, (c) is a view that visualizes a part visually recognized from the front direction as a whole except for the stay. In the second embodiment (an example in which a load receiving stopper is attached), an enlarged cross-sectional view of a main part showing a locking relationship between another load receiving stopper, a bracket, a headrest support, and a headrest stay. In another example of the second embodiment, (a) is a cross-sectional view, (b) is a table showing the shape of the bottom in (a), and (c) shows another example of the protrusion of the bracket and the hole of the stay. Cross section of the main part Enlarged sectional view of the main part of the second embodiment The figure which is another example of 2nd Example and shows the main part. Cross-sectional view of a partially missing part of the main part of the second embodiment Cross-sectional view of the third embodiment (example with a cap attached) Overall view of the third embodiment, (a) is an end view of the main part and the bracket is rectangular, and (b) is an end view of the main part and the bracket is irregularly shaped. Disassembled scale schematic diagram explaining the relationship between the conventional headrest (1000) and the seat (1001)

Hereinafter, each embodiment of the present invention will be sequentially described with reference to the drawings, but the present invention is not limited to the drawings and / or the description, and is one embodiment.

As shown in FIG. 1, the headrest A is a pair supported by a pair of brackets 3 and 3 (referred to as bracket 3) for headrest support arranged on an upper frame 2 (skeleton) arranged on the upper surface 1a of the seat 1. The headrest supports 5 and 5 (referred to as support 5) and a pair of headrest stays 6 and 6 (referred to as stay 6) that are inserted and supported by the support 5 are attached to the seat 1. The bracket 3 may have either a rectangular shape or a deformed shape shown in FIG. 9 (c). The upper frame 2 may have a pipe shape, a plate shape, or any other press shape.

The basic structure is that the pair of headrest supports 5 inserted into the bracket 3 mounted on the seat 1 and the headrest A housed in the headrest support 5 and attached to the seat 1 via the headrest stay 6 have a seat. A space H is formed between the upper surface 1a of 1 and the lower surface Aa of the headrest A. By forming this space H, for example, in the space H, the headrest A can be made smaller and lighter, the interior visibility in the vehicle can be ensured, or the air circulation in the vehicle can be used to ensure the cleanliness in the vehicle. / Or, it is expected that the three-csightness of taxis, etc., which is necessary these days, can be resolved. The bracket 3 has a bottomed shape (inner bottom) that receives a load described later. Further, as a general rule, the stay 6 is a bottom with a diaphragm and a hole (outer bottom). This outer bottom has a cushioning effect.

Hereinafter, each preferred embodiment in which the space H is formed will be described.

In FIG. 2-FIG. 10-2 showing the first embodiment, a bottomed bush 10 (this bush 10) is used as a means for ensuring the length of the support 5 (and / or the stay 6 described later may be possible). Has a space H dimension) is added. That is, the length of the bush 10 is added to the length of the conventional support (1005) to increase the length. As a result, a space H can be formed between the upper surface 1a of the sheet 1 and the lower surface Aa of the headrest A.

Then, as shown in FIGS. 2 to 7, the bush 10 is attached (provided) to the lower end 5a of the support 5. The mounting position is considered to be the lower end of the conventional support (1005). Of course, an integral shape is also possible. In this example, the bracket 3 has the same form as the conventional bracket (1003), but is an example. The method of inserting and supporting the support 5 into the bracket 3 is the same as in the conventional method, in which the locking piece 501 of the support 5 is fitted and locked in the locking opening 300 provided in the bracket 3 and fixed at a predetermined position. do. Further, it is possible that the support 5 and the bracket 3 are provided with a retaining structure. As a general rule, the stay 6 has the same size as the conventional stay (1006) (the same applies to each embodiment). However, it is desirable that the length is long (the same applies to each embodiment). In the figure, 600 is a pressing portion of the stay 6. The operation of the pressing portion 600 will be described later. Then, a space and / or a narrowing down or the like is formed at the lower end of the stay 6 to achieve a shock absorbing effect (each embodiment).

8 to 10-2 are another embodiment of the first embodiment, which is a method of flexibly locking the locking piece 501 of the support 5 to the locking opening 300 of the bracket 3. The locking piece 501 of the support 5 is pressed outward from the peripheral wall by using the pressing portion 600 of the stay 6. Further, in order to hold the locking piece 501 inward around the periphery, a structure is adopted in which the locking piece 501 is housed in the step portion 601 (constituting the pressing portion 600) of the stay 6 when it is free.

In FIGS. 8A to 8C, the basic structure thereof is similar to the structure of FIG. 7 described above, and the convex piece 503 of the support 5 is provided in the locking opening 300 provided at an appropriate position such as the lower end of the bracket 3. (The load receiving stopper that receives the load of the entire headrest A, which is the same as the reference numeral 11) is involved, and by pushing the stay 6, the convex piece 503 is pushed, and it fits in the locking opening 300 and is engaged. It is a structure that stops. Further, one or a plurality of spring pieces 500 (same for each embodiment) of the support 5 are attached and locked to the inner wall of the bracket 3 and its space. Mainly to prevent the support 5 from slipping from the bracket 3 and to prevent vibration (the same applies to other examples). Further, one or more convex pieces 503 of the support 5 (same as the load receiving stopper that receives the load of the entire headrest A) shall be inserted into and locked in the one or more locking openings 300 of the bracket 3. And, the locking portion 503a is formed on the upper side of the convex piece 503.

In FIGS. 9A to 9F, the basic structure thereof is similar to the structures of FIGS. 7 and 8 described above, and the support 5 has a flexible piece 505 and a connecting piece 506 connected to the flexible piece 505. The convex pieces 503b and 503c having a bifurcated form or a single-row form (for example, an auxiliary protrusion 504 described later) are provided in a plan view. Further, the stay 6 is configured with a pressing portion 600 and a step portion 601. The flexible pieces 505 and the convex pieces 503b and 503c are locked (inserted) in one or several locking openings 300 (same for each embodiment) provided at appropriate positions such as the lower end of the bracket 3. Be supported. Note that 507 is a space formed between the stay 6 and the support 5, and is a space for the spring function of the flexible piece 505. Then, it is possible to secure the support 5 to the frame 2, the mounting position of the stay 6 and the like, the space H, detachment, other misalignment prevention, vibration prevention, and the like. Others, or use by inserting or removing, shall be in accordance with the above-mentioned examples. Further, the connecting piece 506 has a structure for connecting the convex piece 503b and the convex piece 503c, and the operations of the convex piece 503b and the convex piece 503c are synchronized with each other.

Next, in FIGS. 10-1 (a) to (d) and 10-2, the basic structure thereof is similar to the structure of FIG. 7 described above, and the locking provided at an appropriate position such as the lower end of the bracket 3. The structure is such that the locking piece 501 of the support 5 is involved in the opening 300, and the locking piece 501 is pushed by pushing the stay 6 to fit in the locking opening 300. In the figure, reference numeral 504 is an auxiliary protrusion of the locking piece 501, and the auxiliary protrusion 504 is attached to the locking piece 501 as necessary to assist the locking piece 501 and prevent cracks and the like. Further, reference numeral 601 in FIG. 10-1 (b) is an inwardly facing step portion for pushing the stay 6, and the step portion 601 controls the operation of the locking piece 501. The step portion 601 and the locking piece 501 and the like are provided with an inclined surface for the purpose of escaping the load and maintaining the strength.

This structure conforms to FIG. 7 described above. The number of the locking openings 300, the locking pieces 501, or the stepped portions 601 and / or the provision of these in pairs on both sides can be appropriately changed. For example, the dimensions of the bracket 3, the support 5, or the stay 6 may be changed as appropriate depending on the locking location.

Further, in the above-mentioned example of FIG. 10-1, a means for receiving the load of the stay 6 is shown, and the locking opening 300 of the bracket 3 has a convex portion (a pair of convex portions) provided on the locking piece 501 of the support 5. One of the (unsigned) is hooked and locked, and / or the step portion 601 of the stay 6 is hooked and locked to the other of the convex portions provided in pairs on the locking piece 501 of the support 5. Then, receive this support 5 and secure each position.

In FIGS. 11 (a) to 11 (c), which show a series of second embodiments, the basic structure follows the above-mentioned structures of FIGS. 9 and 10-1. The common points are at least a combination of the bending piece 505 and the connecting piece 506 of FIG. 9, the space 507, the locking piece 501 of FIG. 10-1, the auxiliary protrusion 504, and the like, and the pressing portion 600 of the stay 6. It is a structure including a step portion 601. Its usage, operation, features, etc. conform to the structures of FIGS. 9 and 10-1. Others, or use by inserting or removing, are in accordance with the above-mentioned Examples of FIGS. 9 and 10-1 and each of the above-mentioned Examples.

12-16 show each of the other examples of the second embodiment, and the weight of the headrest A is shown as a means for ensuring the length of the support 5 (and / or the stay 6 described later). The structure is such that a load receiving stopper 11 (the stopper 11 has the size of the space H and receives the load of the entire headrest A) that can receive the impact is added. That is, the length of the conventional support (1005) is increased by adding the length of the stopper 11. As a result, a space H can be formed between the upper surface 1a of the sheet 1 and the lower surface Aa of the headrest A. 13 and 14 show locking portions (projections (i), protrusions (ro), and holes (ha)) of other structures described later.

In FIG. 13 (a), the stay 6 is provided with a bottom bush 12 having protrusions (i) and (ro) and functioning as a cushioning material, and is used as a means for ensuring the length. The protrusion (i) is locked in the locking hole (unsigned) provided at the bottom of the stay 6, and the protrusion (ro) is locked in the hole 3d at the bottom of the bracket 3, so that the bottom bush 12 at the time of impact It can prevent misalignment and impact (the same applies to other means of ensuring length). The protrusions (i) and holes 3d may not be present, and the presence or absence of these protrusions (i) and holes 3d is shown in FIG. 13 (b) as a table. FIG. 13 (a) is an example of 4 in this table. Note that FIG. 13 (a) shows a state in which one bottom free end 3b of the bracket 3 is locked in the hole (ha). FIG. 13C is an example in which a protrusion 3e is provided on the bottom of the bracket 3 upward. The protrusion 3e is inserted and supported in a locking hole (unsigned) on the bottom surface of the stay 6 to be integrated. Further, in FIG. 14, one bottom free end 3b of the bracket 3 is plugged into or attached to a hole (ha) provided in the other side free end 3c, and the bracket 3 has a bottomed shape. It shows the state before. That is, the bottom free end 3b and the side free end 3c can be inserted and supported (FIG. 13 (a)) and opened (FIG. 14). The advantages such as taking in and replacing the bottom bush 12 and maintaining the shape are ensured. It should be noted that one bottom free end 3b has a structure for forming a bottom, and the other side free end 3c has a structure for forming a side. Further, as described above, the bottom bush 12 is provided with upper and lower protrusions (i) and (ro), and these protrusions (i) and (ro) are holes 3d and / or stay 6 at the bottom of the bracket 3. The structure shall be such that it can be inserted and locked or removed from the locking holes (unsigned) provided at the bottom of the. It should be noted that the above-mentioned example is an example, and the protrusion (i), (ro), and the hole 3d may not be present.

Then, in the examples of FIGS. 15 and 16, another embodiment of the second embodiment is provided, and an extension portion (unsigned, a length for securing the space H dimension) is provided at the lower end 6a of the stay 6, and the extension portion is provided. A hole 6c for locking is formed in the side portion 6b of the above, and the locking piece 501 of the support 5 is inserted into the hole 6c to lock the hole 6c, and the position of the stay 6 is determined (the space H dimension is secured). Others are the same as those in the first and second embodiments described above. FIG. 16 is a cross-sectional view of the main body portion showing the locking stopper 602.

In FIGS. 17 and 18, which show a series of third embodiments, the cap 14 (the cap 14 is a space H) is used as a means for ensuring the length of the support 5 (and / or the stay 6 described later). The structure is provided with dimensions). That is, the length of the conventional support (1005) is increased by adding the length of the cap 14. As a result, a space H can be formed between the upper surface 1a of the sheet 1 and the lower surface Aa of the headrest A. FIG. 18 (a) shows a square type, and FIG. 18 (b) shows a variant type, which is an example.

Others, for example, functions, uses, etc., are in accordance with the above-mentioned first and second embodiments.

In the third embodiment, as shown in FIG. 18, the support 5 may show a different irregular cross section in a plan view, and a space area I different from that of the other corners is provided in some corners. There is. The function, use, etc. shall be in accordance with the first and second embodiments.

Although not shown, the stay 6 can be inserted and supported by an auxiliary member (not shown) provided under the bracket 3.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope shown in each claim. For example, each embodiment obtained by combining the technical means appropriately modified within the scope of each claim is also included in the technical scope of the present invention.

1 Sheet 1a Top 2 Frame 3 Bracket 3a Bottom 3b Free end 3c Free end 3d Hole 3e Protrusion 300 Locking opening 5 Support 5a Bottom 500 Spring piece 501 Locking piece 502 Locking stopper 503 Convex piece 503a Locking part 503b Convex piece 503c Convex piece 504 Auxiliary protrusion 505 Flexible piece 506 Connecting piece 507 Space 6 Stay 6a Lower end 6b Side part 6c Hole 600 Pressing part 601 Step part 602 Locking stopper 10 Bush 11 Load receiving stopper 12 Bottom type bush 14 Cap 1000 Headrest 1000a 1001a Top surface 1002 Frame 1003 Bracket 1005 Support 1006 Stay A Headrest Aa Bottom surface H Space I Space area (I) Protrusion (ro) Protrusion (ha) Hole

Claims (8)

A headrest attached to the seat via a pair of headrest supports inserted into a pair of brackets mounted on the seat and a pair of headrest stays housed in the pair of headrest supports.
A headrest device configured to include a means for securing the length of the headrest support or the headrest stay in order to form a space between the upper surface of the seat and the lower surface of the headrest. The headrest device according to claim 1, wherein the means for ensuring the length is a support bush attached to the lower end of the headrest support and / or a cushioning material. The headrest device according to claim 2, wherein the support bush is configured to be locked to the bracket, one of the headrest supports, or a plurality of locking portions. The headrest device according to claim 1, wherein the means for ensuring the length is a stopper provided between the inner bottom of the bracket and the outer bottom of the headrest stay, and / or a cushioning material. The headrest device according to claim 4, wherein the stopper is configured to be locked between the inner bottom of the bracket and the outer bottom of the headrest stay. The headrest device according to claim 1, wherein a load receiving stopper and / or a cushioning material is attached to the lower end of the headrest support as a means for ensuring the length. The headrest device according to claim 6, wherein the load receiving stopper is provided at the upper and lower ends of the bracket and / or the headrest support, and is configured to be locked to one or a plurality of locking portions. The headrest device according to claim 1, wherein a support cap and / or a cushioning material is attached to or attached to the headrest support as a means for ensuring the length.

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