JP2006320572A - Bracket for headrest support - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a conventional problem, and to effectively use a bracket composed of a substantially cubic bracket body formed by abutting a conventional free end in a longitudinal direction, and is functional and additional to the bracket. Give value. Also, it aims to make effective use of the machine that manufactures the bracket and manufacture the bracket with slight improvements to this manufacturing machine, aiming at the effective use of facilities and resources and the pursuit of economy.
[Configuration] The bracket for supporting the headrest made of metal in the seat back of the present invention is cut on the opposite side of a substantially cubic bracket body formed by bending a flat metal material and butting its free end in the longitudinal direction. Formed with a groove to form a cross-shaped processing band part, with the processing means for the processing band part, the processing part is bent inward to form an elastic piece, and the headrest support is elastically supported by the bracket To do.
[Selection] Figure 8

Description

  The present invention relates to a bracket for a headrest support, and relates to a bracket for a headrest support having an elastic function capable of reliably and firmly holding a resin headrest support.

  As is well known, since the vehicle is required to be quiet during running, this type of headrest metal bracket reliably supports the resin headrest support, prevents rattling during running, It is becoming an important factor to avoid the generation of sound. On the other hand, in recent years, it is considered an urgent need to achieve this kind of rattling prevention.

  In addition, the strength of the metal bracket for headrest support has been pointed out that it is difficult to avoid deformation (ensuring the dimensional accuracy of the bracket) when welding to the metal frame embedded in the seat back, and various improvements have been pointed out. Has been done. However, it is unavoidable that the bracket dimensions are more or less distorted during welding, and there is a problem that the fitting state of the headrest support cannot be ensured (a fitting gap is generated). And if this fitting gap occurs, it becomes a problem, but even if this fitting gap occurs, if this bracket has an elastic function, the headrest support can be elastically supported It seems that there is no problem.

  The metal bracket for the headrest is required to have a predetermined strength. For example, when an impact is applied to the headrest support from the outside, this impact is stopped, and this impact is required in consideration of avoiding blind movement (blur) of the headrest support. Yes. However, the metal bracket is as its name suggests, and because it has a structure that does not have an elastic function against impacts, it is possible to prevent rattling and avoid rattling due to tolerances, degree of assembly, etc. It is considered difficult.

  In consideration of the above situations, if this type of metal bracket has an elastic function, it may be formed by the above-described tolerance, gap due to the degree of assembly, etc., or deformation due to welding. Even if a gap is generated, it is obvious that no problem will occur for the time being because it can be treated for a predetermined period.

  Further, as prior literatures in which a metal bracket is provided with an elastic function, there are "Headrest support device" (Literature (1)) of Japanese Utility Model No. 4-30930 and "Headrest support device of Japanese Utility Model No. 4-30931". (Reference (2)). This literature (1) and literature (2) are the structures which give an elastic mechanism indirectly to this bracket by interposing the engaging body which consists of a spring structure between a bracket and a headrest support. The engaging body is a separate part from the bracket.

No. 4-30930 Reality 4-30931

  The literatures (1) and (2) have a configuration in which an engaging body separate from the bracket is attached and an elastic function is given to the bracket. Therefore, there are problems in terms of production and economy, such as an increase in the number of parts, difficulty in automatic assembly, and high costs. In addition, there are also problems that require labor and much labor for the manufacture of parts and their procurement and / or management.

  In view of the above, the present invention effectively uses a bracket composed of a substantially cubic bracket body formed by bending a conventional flat metal material and abutting the free ends in the longitudinal direction. And it aims to give additional value. The bracket according to the present invention can be manufactured with an effective use of a machine for manufacturing the bracket and a slight improvement to the manufacturing machine, and an object is to effectively use facilities, resources, etc. and to pursue economic efficiency.

  The invention of claim 1 makes effective use of a bracket composed of a substantially cubic bracket body formed by bending a conventional flat metal material and abutting the free ends in the longitudinal direction. And it aims at giving additional value (elastic function). The bracket according to the present invention can be manufactured with an effective use of a machine for manufacturing the bracket and a slight improvement to the manufacturing machine, and an object is to effectively use facilities, resources, etc. and to pursue economic efficiency. Another object of the invention of claim 1 is to eliminate the gap between the bracket and the headrest support, to prevent rattling and to avoid the generation of rattling noise.

Claim 1 is a bracket for metal headrest support embedded in a seat back,
This bracket is formed by bending a flat metal material, forming a substantially cubic bracket body by abutting the free ends in the longitudinal direction, and providing a cut groove on the opposite side of the substantially cubic bracket body. It is a bracket for a headrest support in which a processing band portion having a shape is formed, and an elastic piece is formed by bending the processing portion inward with a processing means for the processing band portion.

  A second aspect of the present invention provides a clinch structure for a bracket according to the first aspect.

  According to a second aspect of the present invention, there is provided a headrest support bracket in which the butt according to the first aspect is formed by a butt formed by a concavo-convex portion having a clinch structure.

  The invention of claim 3 is to provide an optimal elastic piece when the elastic part is formed by bending the processed portion according to claim 1 inward.

  A third aspect of the present invention provides a headrest support for a headrest support in which the elastic piece according to claim 1 has a single shape and is configured to be attached to a single shape of the headrest support inserted into the bracket and / or a double-type stay presser elastic piece. It is a bracket.

  A fourth aspect of the invention is to provide an optimum elastic piece when forming the elastic piece by bending the processed portion according to claim 1 inward.

  According to a fourth aspect of the present invention, there is provided a bracket for a headrest support in which the elastic piece according to the first aspect is formed in a double shape and is in contact with the double-type stay pressing elastic piece of the headrest support inserted into the bracket.

The invention of claim 1 is a bracket for a metal headrest support embedded in a seat back,
The bracket is formed by bending a flat metal material, forming a substantially cubic bracket body by abutting the free ends in the longitudinal direction, and providing a cut groove on the opposite side of the substantially cubic bracket body to form a cross shape It is a bracket for a headrest support in which a band portion is formed and an elastic piece is formed by bending a processing portion inward by a processing means for the processing band portion.

  Accordingly, the first aspect of the present invention effectively uses a bracket composed of a substantially cubic bracket body formed by bending a conventional flat metal material and abutting the free ends in the longitudinal direction. In addition, there is a feature that can give additional value (elastic function). The bracket according to the present invention can be manufactured with an effective use of the machine for manufacturing the bracket and a slight improvement to the manufacturing machine, and there is an actual advantage that an effective use of facilities and resources can be pursued and the economy can be pursued. In addition, the present invention has a feature that the gap between the bracket and the headrest support is eliminated, and rattling can be prevented and generation of rattling noise can be avoided.

  A second aspect of the present invention is a headrest support bracket in which the butt according to the first aspect is formed by a butt by a concavo-convex portion of a clinch structure.

  Therefore, claim 2 is characterized in that the clinch structure of the bracket according to claim 1 can be provided.

  The invention according to claim 3 is for the headrest support in which the elastic piece according to claim 1 is made into a single shape, and the headrest support is inserted into the bracket in a single shape and / or in contact with the double-type stay presser elastic piece. It is a bracket.

  Therefore, the third aspect has a feature that an optimal elastic piece can be provided when the elastic part is formed by bending the processing portion according to the first aspect inward.

  The invention of claim 4 is a bracket for a headrest support in which the elastic piece according to claim 1 is formed in a double shape and is attached to a double-type stay pressing elastic piece of a headrest support to be inserted into the bracket. .

  Accordingly, the fourth aspect has a feature that an optimal elastic piece can be provided when the elastic part is formed by bending the processing portion according to the first aspect inward.

  An example of the present invention will be described.

  Referring to the drawings, FIG. 1 is an overall exploded perspective view illustrating the relationship between a frame embedded in a seat back, a bracket, and a headrest. FIGS. 2-1 to 4-3 show the first embodiment, FIG. 2-1 is a side view showing a state before the bracket is processed, and FIG. 2-2 is a view of FIG. Fig. 3-1 is a side view for explaining the movement of meat during the processing of the bracket, Fig. 3-2 is a cross-sectional view of the main part of Fig. 3-1, and Fig. 4-1 is the processing of the bracket FIG. 4-2 is a cross-sectional view of the main part of FIG. 4-1, and FIG. 4-3 is a vertical cross-sectional view of the main part of FIG. 4-1. Next, FIGS. 5-1 to 6-3 show a second embodiment, FIG. 5-1 is a side view showing a state before processing of the bracket, and FIG. 5-2 is a view of FIG. FIG. 6-1 is a side view illustrating the movement of meat during the processing of the bracket, FIG. 6-2 is a cross-sectional view of the main part of FIG. 6-1, and FIG. FIG. 7-2 is a cross-sectional view of the main part of FIG. 7-1, and FIG. 7-3 is a vertical cross-sectional view of the main part of FIG. FIG. 8 is a schematic sectional view for explaining the relationship between the bracket and the headrest support and / or headrest stay in the first embodiment, and FIG. 9 shows the bracket, the headrest support and / or the headrest stay in the second embodiment. It is a cross-sectional schematic diagram explaining the relationship.

  First, the first embodiment shown in FIGS. 2-1 to 4-3 will be described. In this example, a flat (not shown) metal material is bent and formed at the free end X1 in the longitudinal direction X thereof. Forming the concavo-convex portions X2 and X3, abutting the concavo-convex portions X2 and X3 to form a substantially cubic bracket body 1, and processing means intended to move the meat at the butt end 2 of the substantially cubic bracket body 1 It can be done. One or several cut grooves 3 are formed on the opposite side surface 100 or 101 of the substantially cubic bracket body 1 to form one or several cross-shaped working band portions 5. By a processing means (not shown) using pressing by a press or the like, the processed portion 500 is bent inward 501 to form a single-type elastic piece 6. The state of this processing is indicated by the arrow (A) in FIG. 3-1, and the bending direction in FIG. 3-2 by the arrow (B).

  The relationship between the first embodiment and the headrest support D will be described with reference to the example shown in FIG. 8. The use state will be described below. The upper and lower body portions D1 and D2 of the headrest support D are connected to the upper and lower inner surfaces 102 and 103 of the bracket body 1. Is attached. The headrest support D is supported in the bracket body 1 by this attachment. In this supported state, the elastic piece 6 of the bracket body 1 is attached to the convex portions D3-1 and D4-1 provided on the stay pressing elastic pieces D3 and D4 of the headrest support D from the direction of the arrow (c). When the headrest stay E is inserted into the headrest support D in this state, the headrest stay E is pressed in the direction of the arrow (d), so that the arrows (c) and (d) Due to the repulsive force, there is almost no backlash between the bracket body 1 and the headrest support D, and there is a feature that it is possible to avoid the generation of rattling noise and / or other adverse effects caused by the backlash. In addition, there are practical benefits that can contribute to avoiding harmful effects due to tolerances and facilitating assembly.

  First, the second embodiment of FIGS. 5-1 to 7-3 will be described. In this example as well, the substantially cubic bracket body 1 is formed in the same manner as the first embodiment. The other configurations are basically the same. One or several cut grooves 3 are formed on the opposite side surface 100 or 101 of the substantially cubic bracket body 1 to form one or several cross-shaped working band portions 5. By a processing means (not shown) using pressing by a press or the like, the processing portion 500 is bent inward 501 to form the double-type elastic pieces 6 and 6 (referred to as 6). The state of this processing is indicated by an arrow (A) in FIG. 6-1, and the direction of bending by an arrow (B) in FIG. 6-2.

  The relationship between the second embodiment and the headrest support D will be described with reference to the example shown in FIG. 9. The use state will be described below. The upper and lower body portions D1 and D2 of the headrest support D are connected to the upper and lower inner surfaces 102 of the bracket body 1. 103 is attached. The headrest support D is supported in the bracket body 1 by this attachment. In this supported state, the elastic piece 6 of the bracket body 1 is attached to the two recesses D3-2 and D4-2 provided on the stay pressing elastic pieces D3 and D4 of the headrest support D from the direction of the arrow (c). The When the headrest stay E is inserted into the headrest support D in this state, the headrest stay E is pressed in the direction of the arrow (d), so that the arrows (c) and (d) The repulsive force eliminates rattling between the bracket body 1 and the headrest support D and / or the generation of rattling noise, and can also reliably avoid other adverse effects caused by the rattling. In addition, there is an actual benefit that can sufficiently contribute to avoiding harmful effects due to tolerance and facilitating assembly.

  In the figure, A shows a vehicle seat.

FIG. 1 is an overall exploded perspective view illustrating the relationship between a frame embedded in a seat back, a bracket, and a headrest. Fig. 2-1 is a side view of the bracket before processing 2-2 is a cross-sectional view of the main part of FIG. Fig. 3-1 is a side view explaining the movement of meat during bracket processing 3-2 is a cross-sectional view of the main part of FIG. 3-1. 4-1 is a side view showing the state after processing the bracket 4-2 is a cross-sectional view of the main part of FIG. 4-3 is a longitudinal sectional view of the main part of FIG. Fig. 5-1 is a side view of the bracket before processing 5-2 is a cross-sectional view of the main part of FIG. Fig. 6-1 is a side view explaining the movement of the meat when processing the bracket 6-2 is a cross-sectional view of the main part of FIG. FIG. 7-1 is a side view showing a state after processing of the bracket. 7-2 is a cross-sectional view of the main part of FIG. 7-3 is a longitudinal sectional view of the main part of FIG. FIG. 8 is a schematic cross-sectional view illustrating the relationship between the bracket and the headrest support and / or the headrest stay in the first embodiment. FIG. 9 is a schematic cross-sectional view illustrating the relationship between the bracket and the headrest support and / or headrest stay in the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bracket main body 100 Side surface 101 Side surface 102 Upper inner surface 103 Lower inner surface 2 Butting end part 3 Groove 5 Processed belt part 500 Processed part 501 Inner 6 Elastic piece A Sheet B Frame C Seat back D Headrest support D1 Upper main body part D2 Lower Side body part D3 Stay holding elastic piece D3-1 Convex part D3-2 Concave part D4 Stay pressing elastic piece D4-1 Convex part D4-2 Concave part E Headrest stay F Headrest X Longitudinal direction X1 Free end X2 Concave part X3 Convex part

Claims (4)

It is a bracket for metal headrest support embedded in the seat back,
This bracket is formed by bending a flat metal material, forming a substantially cubic bracket body by abutting the free ends in the longitudinal direction, and providing a cut groove on the opposite side of the substantially cubic bracket body. A bracket for a headrest support in which an elastic piece is formed by forming a processing band portion having a shape and bending the processing portion inward by a processing means for the processing band portion.   A bracket for a headrest support in which the butt according to claim 1 is configured by butt by an uneven portion having a clinch structure.   A bracket for a headrest support, wherein the elastic piece according to claim 1 has a single shape and is configured to be attached to a single shape of the headrest support inserted into the bracket and / or a double-type stay pressing elastic piece.   A bracket for a headrest support having a structure in which the elastic piece according to claim 1 is formed in a double shape and is attached to a stay-holding elastic piece of a double-type headrest support inserted into the bracket.

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