MODIFIED HEADREST OF A CHAIR
The present invention has a back supporting module, a front headrest module and an anchor plate. The back supporting module has a positioning base, a moveable base, and a positioning cover. An insertion recess is formed in a top end of the positioning base. The moveable base is mounted in the insertion recess of the positioning base. The moveable base can be moved along the positioning cover. The front headrest module has a linking plate mounted in the moveable base and a headrest board. The anchor plate is mounted on a front surface of the linking plate and is securely connected to the moveable base. The headrest board is connected securely to the linking plate. When moving the headrest board, the level position and height of the moveable base can be adjusted.
1. Field of the Invention
The present invention relates to a modified headrest of a chair, especially a headrest mounted on a top end of a chair backrest for supporting the head of a user.
2. Description of the Prior Arts
A conventional chair is made of a cushion module, a backrest module and a foot base. The backrest module is mounted on the cushion module and the foot base is mounted under the cushion module. When a user sits on the cushion module, the back of the user can be supported by the backrest module. However, the conventional chair does not have a device mounted on a top end of the backrest module for supporting the head of the user. After remaining seated for a period, the user feels tired on their head and neck.
For overcoming the drawback, a conventional headrest is mounted on the backrest module. When sitting on the seat of the chair, the user's back can be supported by the backrest module and the user's head can lean on the conventional headrest to relax the head and neck of the user. Furthermore, another conventional headrest is movably mounted on the backrest module with an adjusting structure for adjusting the height of the conventional headrest. So the conventional chair can be used for users with different body shapes.
But the conventional headrest with an adjusting function cannot meet the demands of users with different body shapes. Therefore, the conventional headrest with an adjusting function still cannot completely meet the demands of users with different body shapes. Especially, the sitting habits differ from user to user, and the supporting effect of the conventional headrest will be limited.
To overcome the shortcomings, the present invention provides a modified headrest of a chair to mitigate or obviate the aforementioned problems.
SUMMARY OF THE INVENTIONThe main objective of the present invention is to provide a modified headrest of a chair that has a multi-function adjustment to adjust the height and the angle of the headrest, so that the present invention can meet more requirements from different users.
A modified headrest of a chair comprises a back supporting module, a front headrest module and an anchor plate. The back supporting module has a positioning base, a moveable base, and a positioning cover. An insertion recess is formed in a top end of the positioning base. The moveable base is mounted in the insertion recess and the positioning cover is securely mounted on a back end of the positioning base. The moveable base can be moved along the positioning cover. The front headrest module has a headrest board and a linking plate. The linking plate is mounted in the moveable base. The anchor plate is mounted on a front surface of the linking plate and is securely connected to the moveable base. The headrest board is curved and is connected securely to the linking plate.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
With reference to
The moveable base 12 is a plate, is mounted in the insertion recess 112 of the positioning base 11 and is located in the space 114. The moveable base 12 has two linking rods 121 respectively formed on two opposite sides of the moveable base 12 at a top side of the moveable base 12, two protrusions 122 respectively mounted on the linking rods 121, multiple lock holes 123 mounted through the protrusions 122 at intervals, a positioning groove 124 formed in a front surface of the moveable base 12, multiple positioning pins 125 mounted in the positioning groove 124, and a straight groove 126 formed in the front surface and communicating with the positioning groove 124.
With reference to
With reference to
With reference to
The modified headrest of a chair of the present invention further has an anchor plate 30 mounted on the linking plate 22 and connecting to the moveable base 12, and the anchor plate 30 has multiple anchor holes 31 and two engaging teeth 32. The anchor holes 31 are formed through two opposite sides of the anchor plate 30 and corresponding to the lock holes 123, and multiple screwing units are mounted through the anchor holes 31 and locked in the lock holes 123. The engaging teeth 32 are formed on the two sides of the anchor plate 30 next to the inner locations of the anchor holes 31 and engage the toothed portions 222 of the linking plate 22. When assembling, the linking plate 22 is mounted on the front side of the positioning base 11, and the protrusions 122 are respectively mounted into the second grooves 221. The anchor plate 30 is mounted on the front side of the linking plate 22 by mounting some locking components through the anchor holes 31 and being mounted in the lock holes 123. The engaging teeth 32 respectively engage the toothed portions 222, such that the linking plate 22 is mounted on the headrest board 21 to enable the repositioning rods 213 to be mounted in the through holes 223 and locked by the fasteners.
With reference to
The present invention has two adjusting functions, one is to adjust the angle of the headrest board 21 and the headrest board 21 is not locked by the lock components. With reference to
The other adjusting function is to adjust the height of the headrest board 21. The moveable base 12 is movably mounted in the positioning base 11. When the headrest board 21 is pulled obliquely, the linking plate 22, the anchor plate 30 and the moveable base 12 are moved as well. With reference to
The present invention has two adjustments of changing height and level position of the headrest board 21, so users could adjust the headrest board to meet the requirements of different body shapes, thereby providing an improved comfort headrest to the users.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims
1. A modified headrest of a chair comprising:
- a back supporting module having a positioning base having an insertion recess formed in a top end of the positioning base; a moveable base mounted in the insertion recess; and a positioning cover securely mounted on a back end of the positioning base, the moveable base being moveable along the positioning cover;
- a front headrest module having a headrest board being curved; and a linking plate mounted on and connected to the headrest board, and abutting the moveable base; and
- an anchor plate mounted on a front surface of the linking plate and securely connected to the moveable base.
2. The modified headrest of a chair as claimed in claim 1, wherein
- the back supporting module has an actuating sheet mounted in the moveable base;
- the moveable base is a plate and is mounted in the insertion recess of the positioning base and has a positioning groove formed in a front surface of the moveable base;
- the actuating sheet of the back supporting module is made of soft materials, is mounted in the positioning groove, and has a linking arm extending downwardly from an outer edge of the actuating sheet; and a fastening pin formed on a bottom end of the linking arm;
- the positioning cover is connected to the positioning base and has a limit groove formed on a center of the positioning cover and facing the positioning groove of the moveable base; a convex portion formed on and protruding from the limit groove of the positioning cover, and a curved orbit formed between the convex portion and the limit groove; a first arc groove formed in the convex portion; and a second arc groove formed in the convex portion and communicating with the curved orbit.
3. The modified headrest of a chair as claimed in claim 2, wherein
- the moveable base has multiple positioning pins mounted in the positioning groove;
- the actuating sheet has multiple securing holes formed through the actuating sheet and respectively disposed around the positioning pins.
4. The modified headrest of a chair as claimed in claim 2, wherein
- the positioning base has an opening formed in a front side of the positioning base; a space formed in the positioning base and communicating with the insertion recess and the opening; and multiple fastening blocks mounted between the opening and an inner wall of the positioning base; and
- the positioning cover has multiple securing holes formed on edges of the positioning cover and corresponding to positions of the fastening blocks.
5. The modified headrest of a chair as claimed in claim 1, wherein
- the moveable base has two linking rods formed on two opposite sides of the moveable base at a top side of the moveable base; and two protrusions respectively mounted on the linking rods;
- the linking plate has two second grooves formed through the linking plate; and two toothed portions formed on the front surface of the linking plate and located on inner sides of the second grooves; and
- the modified headrest has an anchor plate mounted on the linking plate and connecting to the moveable base, and the anchor plate has
- two engaging teeth formed on two opposite sides of the anchor plate and engaging the toothed portions of the linking plate.
6. The modified headrest of a chair as claimed in claim 2, wherein
- the moveable base has two linking rods formed on two opposite sides of the moveable base at a top side of the moveable base; and two protrusions respectively mounted on the linking rods;
- the linking plate has two second grooves formed through the linking plate; and two toothed portions formed on the front surface of the linking plate and located on inner sides of the second grooves; and
- the modified headrest has an anchor plate mounted on the linking plate and connecting to the moveable base, and the anchor plate has
- two engaging teeth formed on two opposite sides of the anchor plate and engaging the toothed portions of the linking plate.
7. The modified headrest of a chair as claimed in claim 3, wherein
- the moveable base has two linking rods formed on two opposite sides of the moveable base at a top side of the moveable base; and two protrusions respectively mounted on the linking rods;
- the linking plate has two second grooves formed through the linking plate; and two toothed portions formed on the front surface of the linking plate and located on inner sides of the second grooves; and
- the modified headrest has an anchor plate mounted on the linking plate and connecting to the moveable base, the anchor plate has
- two engaging teeth formed on two opposite sides of the anchor plate and engaging the toothed portions of the linking plate.
8. The modified headrest of a chair as claimed in claim 4, wherein
- the moveable base has two linking rods formed on two opposite sides of the moveable base at a top side of the moveable base; and two protrusions respectively mounted on the linking rods;
- the linking plate has two second grooves formed through the linking plate; and two toothed portions formed on the front surface of the linking plate and located on inner sides of the second grooves; and
- the modified headrest has an anchor plate mounted on the linking plate and connecting to the moveable base, and the anchor plate has
- two engaging teeth formed on two opposite sides of the anchor plate and engaging the toothed portions of the linking plate.
9. The modified headrest of a chair as claimed in claim 5, wherein
- the headrest board has multiple repositioning rods formed on a back surface of the headrest board; and
- the linking plate has multiple through holes formed through the headrest board and corresponding to the repositioning rods of the headrest board.
10. The modified headrest of a chair as claimed in claim 6, wherein
- the headrest board has multiple repositioning rods formed on a back surface of the headrest board; and
- the linking plate has multiple through holes formed through the headrest board and corresponding to the repositioning rods of the headrest board.
11. The modified headrest of a chair as claimed in claim 7, wherein
- the headrest board has multiple repositioning rods formed on a back surface of the headrest board; and
- the linking plate has multiple through holes formed through the headrest board and corresponding to the repositioning rods of the headrest board.
12. The modified headrest of a chair as claimed in claim 8, wherein
- the headrest board has multiple repositioning rods formed on a back surface of the headrest board; and
- the linking plate has multiple through holes formed through the headrest board and corresponding to the repositioning rods of the headrest board.
13. The modified headrest of a chair as claimed in claim 1, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on a front surface of the headrest board, the supporting cushion has two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks; and two fixing holes formed through two sides of the supporting cushion.
14. The modified headrest of a chair as claimed in claim 2, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on the front surface of the headrest board, the supporting cushion has two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks; and two fixing holes formed through two sides of the supporting cushion.
15. The modified headrest of a chair as claimed in claim 3, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on the front surface of the headrest board, the supporting cushion has
- two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks.
16. The modified headrest of a chair as claimed in claim 4, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on the front surface of the headrest board, the supporting cushion has two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks; and two fixing holes formed through two sides of the supporting cushion.
17. The modified headrest of a chair as claimed in claim 5, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on the front surface of the headrest board, the supporting cushion has
- two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks; and
- two fixing holes formed through two sides of the supporting cushion.
18. The modified headrest of a chair as claimed in claim 6, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on the front surface of the headrest board, the supporting cushion has
- two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks; and
- two fixing holes formed through two sides of the supporting cushion.
19. The modified headrest of a chair as claimed in claim 7, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on the front surface of the headrest board, the supporting cushion has
- two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks; and
- two fixing holes formed through two sides of the supporting cushion.
20. The modified headrest of a chair as claimed in claim 8, wherein
- the headrest board has a reposition space formed in a front surface of the headrest board; two first grooves formed through two sides on the repositioning space and being vertical; and
- the modified headrest has a supporting cushion mounted on the front surface of the headrest board, the supporting cushion has
- two guiding blocks mounted on a back surface of the headrest board and facing the first grooves, wherein lock components are mounted through the fixing holes and the first grooves and are locked in the guiding blocks; and
- two fixing holes formed through two sides of the supporting cushion.
Type: Application
Filed: Aug 5, 2014
Publication Date: Feb 11, 2016
Inventor: Yao-Chuan WU (Chiayi Hsien)
Application Number: 14/451,937