Headrest stretching device
A technology of a stretching device and a headrest, which is applied in the field of sofa accessories, can solve the problems of large size and complicated installation structure of the headrest installation structure, and achieve the effects of small size, less use of parts and a simple structure
Pending Publication Date: 2022-04-26
LEGGETT & PLATT JIAXING
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Problems solved by technology
[0003] In the prior art, when the position-adjustable headrest is installed on the backrest, many parts are required, resulting in a relatively complicated installation structure of the headrest on the backrest, which in turn leads to a large size of the headrest installation structure
Therefore, there is room for further improvement in the existing position-adjustable headrest installation structures on the market
Method used
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Embodiment Construction
[0019] combine Figure 1 to Figure 3 The head extension device of the present invention will be further described.
[0020] A headrest stretching device is characterized in that it includes: a mounting plate 5 fixedly mounted on the headrest frame 6 of the sofa chair by bolts; a ratchet 4 having a first connecting plate 41 and a second connecting plate 42, the ratchet 4 is fixed on the mounting plate 5 through the first connecting plate 41, that is, the first connecting plate 41 is fixed on the mounting plate 5 through a plurality of bolts; the headrest connecting plate 1, the first connecting rod group 2 and the second connecting rod group 3 ; The upper end of the first link group 2 is pivotally connected to the rear end of the headrest connecting plate 1, the lower end is pivotally connected to the outer end of the second connecting plate 42, and the upper end of the second connecting rod group 3 It is pivotally connected to the middle position of the headrest connecting pl...
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The invention discloses a headrest stretching device which is characterized by comprising a mounting plate fixedly mounted on a headrest frame of a sofa chair; the ratchet wheel is provided with a first connecting plate and a second connecting plate, and the ratchet wheel is fixed on the mounting plate through the first connecting plate; a headrest connecting plate, a first connecting rod group and a second connecting rod group; the upper end of the first connecting rod set is pivoted to the rear end of the headrest connecting plate, the lower end of the first connecting rod set is pivoted to the outer end of the second connecting plate, the upper end of the second connecting rod set is pivoted to the middle of the headrest connecting plate, the lower end of the second connecting rod set is pivoted to the mounting plate, and meanwhile the second connecting rod set is pivoted to the second connecting plate. After the second connecting plate rotates, the headrest connecting plate is driven to swing back and forth through the first connecting rod set and the second connecting rod set. The invention has the characteristics of simple structure, small size and compactness.
Description
technical field [0001] The invention relates to the field of sofa accessories, in particular to a headrest stretching device. Background technique [0002] In order to increase the comfort of the sofa chair, a position-adjustable headrest is usually installed on the top of the backrest of the sofa, and a position-adjustable lumbar backrest is installed in the middle of the backrest. The position of these headrests relative to the backrest is adjustable. When the sofa can be adjusted to a relatively comfortable state. [0003] In the prior art, when the position-adjustable headrest is installed on the backrest, many parts are required, which leads to a relatively complicated installation structure of the headrest on the backrest, which in turn leads to a large size of the headrest installation structure. Therefore, there is room for further improvement in the existing position-adjustable headrest installation structures on the market. Contents of the invention [0004] Ai...
Claims
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Login to View More IPC IPC(8): A47C17/86A47C17/04
CPCA47C17/86A47C17/04
Inventor 陈俊郭宗峰潘自流毛磊沈郭明邬加浩陈小丽
Owner LEGGETT & PLATT JIAXING