CN108968478A - The supporting mechanism of backrest of rotary chair frame - Google Patents
The supporting mechanism of backrest of rotary chair frame Download PDFInfo
- Publication number
- CN108968478A CN108968478A CN201811131148.3A CN201811131148A CN108968478A CN 108968478 A CN108968478 A CN 108968478A CN 201811131148 A CN201811131148 A CN 201811131148A CN 108968478 A CN108968478 A CN 108968478A
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- Prior art keywords
- column
- backrest
- hole
- fixed
- supporting mechanism
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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 56
- 229920001971 elastomer Polymers 0.000 claims description 35
- 239000000806 elastomer Substances 0.000 claims description 31
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/402—Support for the head or the back for the back adjustable in height
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
The present invention relates to a kind of supporting mechanisms of backrest of rotary chair frame.It solves the prior art and adjusts the technical problems such as inconvenient and the practicability is poor.The supporting mechanism of this backrest of rotary chair frame includes rectangular backrest frame, the back side top side of rectangular backrest frame is connected with support frame by triangle part, support frame includes fixed seat frame and the fixed column that is connected on rear side of fixed seat frame, it further include back rest supports column, matching hole is equipped in the lower end of back rest supports column and fixed column inserts in the matching hole, several adjustment holes being arranged along matching hole axially spaced-apart are equipped on the hole wall of matching hole, it inserts in one end in matching hole in fixed column and is equipped with one end of U-shaped resilient locking element and U-shaped resilient locking element and insert in any one adjustment hole, it inserts in be equipped between one end in matching hole and back rest supports column in fixed column and adjusts guiding mechanism, the upper end of back rest supports column is connect by flexible connection mechanism with triangle part.The present invention has the advantages that adjusting more convenient.
Description
Technical field
The invention belongs to chair technology field more particularly to a kind of supporting mechanisms of backrest of rotary chair frame.
Background technique
Chair is the common daily necessity of one of life.
The structure of chair includes bracket and the cushion that is fixed on bracket, and backrest is equipped on bracket.
Its two kind with fixed and lift of existing many backrests, and the backrest of lift its lift adjustment its adopt
It is locked after being adjusted with screw etc. mode.
Its lift adjustment of this mode is relatively complicated and adjusting stability is poor.
Secondly, existing backrest its can not be swung left and right and backrest can not be tilted backwards individually close to one section of neck, make
With being restricted.
Summary of the invention
Regarding the issue above, the present invention provides a kind of more convenient and stability of adjusting is more preferable, practicability is more
The supporting mechanism of strong backrest of rotary chair frame.
In order to achieve the above objectives, present invention employs following technical proposals: the supporting mechanism of this backrest of rotary chair frame includes square
The back side top side of shape seat back frame, rectangular backrest frame is connected with support frame by triangle part, and the support frame includes fixed seat frame
Further include back rest supports column with the fixed column being connected on rear side of fixed seat frame, is equipped with matching hole in the lower end of back rest supports column
And fixed column inserts in the matching hole, and several tune being arranged along matching hole axially spaced-apart are equipped on the hole wall of matching hole
Knothole inserts in one end that one end that fixed column inserts in matching hole is equipped with U-shaped resilient locking element and U-shaped resilient locking element and appoints
It anticipates in an adjustment hole, is inserted between one end in matching hole and back rest supports column in fixed column and be equipped with adjusting guiding mechanism, leaned on
The upper end of back support column is connect by flexible connection mechanism with triangle part.
The upper end Liang Ge branch of triangle part is connect by tubular rubber connecting column with rectangular backrest frame.
U-shaped resilient locking element is made of a metal bar material bending.
Matching hole and fixed column are designed, axial guiding can be formed, the stability of lift adjustment can be improved.
Adjustment hole and U-shaped resilient locking element are designed, when needing to carry out lift adjustment, U-shaped resilient locking element is outside at this time
One end in adjustment hole is inserted under the adjusting of power and is detached from adjustment hole, discharges external force at this time behind lifting to setting position and forces U
The corresponding one end of shape resilient locking element simultaneously inserts in adjustment hole, reaches the height adjustment of backrest height.
The adjusting guiding mechanism of design, can be further improved the regularity and stability of lift adjustment.
The flexible connection mechanism of design may be implemented individually tilting backwards close to neck location, further enrich
Using function and improve practicability.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the flexible connection mechanism includes made of rubber material
Column connector is arranged in back rest supports column upper end and the lower locating notch close to human body side, sets in the corner of triangle part
There is upper locating notch, the lower end of column connector inserts in lower locating notch and sets between column connector and lower locating notch
Have a lower fixed connection structure, the upper end of column connector insert in locating notch and column connector and upper locating notch it
Between be equipped with upper fixed connection structure, be equipped in column connector close to the one side of human body and determine to setting along column connector shaft
Position groove body, and it is stuck in the intracorporal elastomer block of the locating slot, the upper end of elastomer block is stuck in the upper locating notch and leads to
The upper locking member crossed through column connector is fixed on triangle part, and the lower end of elastomer block is stuck in the lower locating notch simultaneously
Back rest supports column upper end is fixed on by the lower locking member through column connector.
Column connector may be implemented to be swung left and right, and deformation backward.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the positioning groove body lower end slot bottom be equipped with it is tilted backwards downward
The bottom incline of setting is equipped with the lower inclination matching surface to match with the bottom incline in the lower end of elastomer block.
Its elastic recoil performance that can be further improved junction of the structure and further enhance structural strength.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the positioning groove body upper end has inclination forward towards upper setting
Top incline, be equipped with the upper inclination matching surface that matches with the top incline in the upper end of elastomer block.
Its elastic recoil performance that can be further improved junction of the structure and further enhance structural strength.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, one end that the elastomer block inserts in lower locating notch is equipped with
Lower limit step；One end in upper locating notch is inserted in equipped with upper limit step in elastomer block.
The structure its can be to avoid excessive deep assembling.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, in the middle part of the elastomer block rear side outer wall be equipped with it is several between the upper and lower
Every the U-shaped relief groove of setting.
The structure its can form self-protection.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the upper fixed connection structure includes that setting is lacked in upper positioning
Positioning tube at least one in mouthful is equipped with the upper fixation being inserted into one by one for the upper positioning tube on rear side of the upper end of elastomer block
Hole.
Upper locking member is passed through from upper positioning tube placed in the middle.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the lower fixed connection structure includes that setting is lacked in lower positioning
Positioning tube under at least one in mouthful is equipped with the lower fixation being inserted into one by one for the lower positioning tube on rear side of the lower end of elastomer block
Hole.
Lower locking member is passed through from lower positioning tube placed in the middle.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the adjusting guiding mechanism include be located at adjustment hole in and with
The guide runner of fixed column vertical sliding connection, at least one waist-shaped hole is equipped in fixed column, is fixed on guide runner
The guide pin that at least one runs through the waist-shaped hole and connect with back rest supports column.
Moved by guide pin along waist-shaped hole, the regularity and stability of lifting moving can be improved, meanwhile, also into
One step improves whole structural strength.
Alternatively scheme, the adjusting guiding mechanism includes the guide rail and slide block structure being mutually slidably connected.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the fixed column back side is equipped with strip groove, guide runner
In strip groove and the cell wall of the two sides of guide runner and strip groove is slidably connected, the middle part patch of U-shaped resilient locking element
Lean against one side of the guide runner far from strip groove slot bottom.
The design of strip groove can expand the contact area with guide runner, and can be further improved sliding
Regularity and stability.
U-shaped resilient locking element can force guide runner to have the trend moved to human body side.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the guide runner includes back plate and is connected to table before back plate
The slide plate in face is equipped with the elastic construction one contacted with strip groove slot bottom on slide plate, is equipped with and strip groove on slide plate
The elastic construction two of cell wall contact, sticks on back plate rear surface in the middle part of U-shaped resilient locking element.
The elastic construction one of design may insure that U-shaped resilient locking element is contacted with guide runner always.
The elastic construction two of design can provide backrest by elastic buffer of the left and right after twisted and rebound.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the elastic construction one includes being arranged in slide plate upper and lower ends
Cantilevered elastic slice, every piece of cantilevered elastic slice free end close to strip groove one side be equipped with lug boss, lug boss and item
The slot bottom of connected in star contacts.Two pieces of cantilevered elastic slices are symmetrical set.
Cantilevered elastic slice its may insure the elastic property of upper and lower side.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the back plate upper and lower ends are respectively equipped with and the cantilever
The one-to-one resigning breach of formula elastic slice.
The resigning breach of design, the resigning after may insure cantilevered elastic slice elastic deformation.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the elastic construction two includes being arranged on slide plate two sides
Raised line, be respectively equipped with cantilever type elastic portion at the both ends of every raised line, cantilever type elastic portion is contacted with the slot bottom of strip groove.
Back plate is located between two pieces of raised lines.
It not only increases structural strength to raised line, but also the fixed stability of back plate can be improved.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, there are two the waist-shaped holes and is parallel to each other, and slide plate is close
Human body set there are two recessing groove and slide plate be equipped with recessing groove while form four and contacted with the slot bottom of strip groove, institute
The recessing groove and waist-shaped hole stated correspond.
The structure its may insure the stability and ride comfort of lift adjustment.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the matching hole is rectangular opening, and the fixed column inserts in
One end transversal cross-section in matching hole is in rectangle and the rectangular opening matches.
Its stability that lift adjustment can be improved of the structure, avoids mutual circumferentially rotate.
In the supporting mechanism of above-mentioned backrest of rotary chair frame, the back rest supports column includes that rear side has locating recesses slot
Ontology, and by the closed cover board of the notch of locating recesses slot, form above-mentioned matching hole between the ontology and cover board.
Its is easy to disassemble for the structure.
The periphery of cover board is equipped with several buckles, blocks one by one equipped with several for the buckle on the cell wall of locating recesses slot
The bayonet entered.
The elastomer block is processed by sheet metal or nonmetal plate.
Compared with prior art, the advantages of supporting mechanism of this backrest of rotary chair frame, is:
1, adjustment hole and U-shaped resilient locking element are designed, when needing to carry out lift adjustment, U-shaped resilient locking element exists at this time
One end in adjustment hole is inserted under the adjusting of external force and is detached from adjustment hole, discharges external force at this time behind lifting to setting position and is forced
The corresponding one end of U-shaped resilient locking element simultaneously inserts in adjustment hole, reaches the height adjustment of backrest height.
2, the adjusting guiding mechanism designed, can be further improved the regularity and stability of lift adjustment.
3, matching hole and fixed column are designed, axial guiding can be formed, the stability of lift adjustment can be improved.
4, structure is simple and manufacture easy to process.
5, the flexible connection mechanism designed may be implemented individually tilting backwards close to neck location, further enrich
Using function and improve practicability.
Detailed description of the invention
Fig. 1 is revolving chair structure schematic diagram provided by the invention.
Fig. 2 is swivel chair schematic cross-sectional view provided by the invention.
Fig. 3 is enlarged structure schematic diagram at A in Fig. 2.
Fig. 4 is structural schematic diagram provided by the invention.
Fig. 5 is the local explosion structure diagram of Fig. 4.
Fig. 6 is guide runner configuration schematic diagram provided by the invention.
Fig. 7 is enlarged structure schematic diagram at B in Fig. 2.
Fig. 8 is flexible connection mechanism configuration schematic diagram provided by the invention.
In figure, fixed seat frame a1, fixed column a2, waist-shaped hole a21, strip groove a22, back rest supports column a3, matching hole
A31, adjustment hole a32, ontology a33, locating recesses slot a331, cover board a34, U-shaped resilient locking element a4, guide runner a5, guiding
Sell a51, back plate a52, resigning breach a521, slide plate a53, cantilevered elastic slice a54, lug boss a55, raised line a56, cantilever type elastic
Portion a57, lower locating notch a35, lower positioning tube a36, rectangular backrest frame a6, triangle part a7, upper locating notch a71, upper positioning tube
A72, flexible connection mechanism a8, column connector a81, positioning groove body a82, bottom incline a821, top incline a822, elastomer block
A83, lower inclination matching surface a831, upper inclination matching surface a832, U-shaped relief groove a833, upper locking member a84, lower locking member a85,
Upper fixation hole a86, lower fixed hole a87.
Specific embodiment
Below be invention specific embodiment and in conjunction with attached drawing, technical scheme of the present invention will be further described, but
Invention is not limited to these embodiments.
As shown in Figs. 1-2, the supporting mechanism of this backrest of rotary chair frame includes rectangular backrest frame a6, the back side of rectangular backrest frame a6
Top side is connected with support frame by triangle part a7, is also connected with neck support on triangle part a7.
The support frame include include fixed seat frame a1 and the fixed column a2 that is connected on fixed seat frame a1 rear side, fixation
The transversal cross-section of column a2 is in rectangle.
As shown in Figs 1-4,
Further include back rest supports column a3, is equipped with matching hole a31 in the lower end of back rest supports column a3 and fixed column a2 inserts in institute
In the matching hole a31 stated, specifically, the back rest supports column a3 of the present embodiment includes the ontology that rear side has locating recesses slot a331
A33, and formed by the closed cover board a34 of the notch of locating recesses slot a331, between the ontology a33 and cover board a34
The matching hole a31 stated.
Several adjustment hole a32 being arranged along matching hole a31 axially spaced-apart are equipped on the hole wall of matching hole a31, solid
One end that one end that fixed column a2 is inserted in matching hole a31 is equipped with U-shaped resilient locking element a4 and U-shaped resilient locking element a4, which inserts in, appoints
It anticipates in an adjustment hole a32, is equipped with to adjust between one end that fixed column a2 is inserted in matching hole a31 and back rest supports column a3 and lead
To mechanism.
Specifically, the adjusting guiding mechanism of the present embodiment include be located at adjustment hole a32 in and with fixed column a2 vertical sliding
The guide runner a5 of connection is equipped at least one waist-shaped hole a21 on fixed column a2, at least one is fixed on guide runner a5
The guide pin a51 that root runs through the waist-shaped hole a21 and connect with back rest supports column a3.Prioritization scheme, the waist-shaped hole of the present embodiment
There are two a21 and is parallel to each other,
And guide pin a51 also has two and is inserted in the waist-shaped hole a21 one by one.
As shown in figures 1 to 6,
It is equipped with strip groove a22 at the back side fixed column a2, guide runner a5 is located in strip groove a22 and guide runner a5
Two sides and the cell wall of strip groove a22 be slidably connected, guide runner a5 is sticked in the middle part of U-shaped resilient locking element a4 far from item
The one side of connected in star a22 slot bottom.
That is, set on fixed column a2 there are two the lock piece being located between two waist-shaped hole a21 insertion hole, it is underlying
It is blind hole that lock piece, which is inserted into hole, and the lock piece insertion hole being located above is through-hole, and the lower end of U-shaped resilient locking element a4 inserts in blind hole
In, and the upper end of U-shaped resilient locking element a4 through through-hole and stretches in any one adjustment hole a32.
When needing to adjust height, forcing U-shaped resilient locking element a4 by external force at this time, deformation occurs to be detached from originally
Adjustment hole a32 discharge external force at this time when the relatively fixed column a2 of back rest supports column a3 is moved to required position, and U-shaped
Resilient locking element a4, which then resets, to be inserted in corresponding adjustment hole a32.
When back rest supports column a3 lifting, the also synchronization lifting of guide runner a5 at this time, it is ensured that lifting moving it is smooth
Property and stability.
Specifically, the guide runner a5 of the present embodiment includes back plate a52 and the slide plate a53 for being connected to back plate a52 front surface,
Two connecting pins are equipped between back plate a52 and slide plate a53.
The elastic construction one contacted with strip groove a22 slot bottom, specifically, the institute of the present embodiment are equipped on slide plate a53
The elastic construction one stated includes that the cantilevered elastic slice a54 of slide plate a53 upper and lower ends is arranged in, every piece of cantilevered elastic slice a54's
Free end is equipped with lug boss a55 close to the one side of strip groove a22, and lug boss a55 is contacted with the slot bottom of strip groove a22.Two
Block cantilevered elastic slice a54 is symmetrical set.
It is allowed correspondingly secondly, being respectively equipped in the back plate a52 upper and lower ends with the cantilevered elastic slice a54
Position notch a521.
The elastic construction two contacted with the cell wall of strip groove a22 is equipped on slide plate a53, U-shaped resilient locking element a4's
Middle part sticks on back plate a52 rear surface.Specifically, the elastic construction two of the present embodiment includes being arranged on the two sides slide plate a53
Raised line a56, be respectively equipped with cantilever type elastic portion a57 at the both ends of every raised line a56, cantilever type elastic portion a57 and bar shaped are recessed
The slot bottom of slot a22 contacts.Back plate a52 is located between two pieces of raised line a56.
In addition, in slide plate a53 close to human body when setting there are two recessing groove and slide plate a53 is equipped with the while shape of recessing groove
Cheng Sigen is contacted with the slot bottom of strip groove a22, and the recessing groove and waist-shaped hole a21 are corresponded.
Recessing groove improves the ride comfort of relative motion which reduce contact area.
In addition, the matching hole a31 of the present embodiment is rectangular opening, the fixed column a2 inserts in one end in matching hole a31
Transversal cross-section is in rectangle and the rectangular opening matches.
As shown in Fig. 1-2 and Fig. 7-8,
The upper end of back rest supports column a3 is connect by flexible connection mechanism a8 with triangle part a7.Specifically, the present embodiment
Flexible connection mechanism a8 includes the column connector a81 made of rubber material, and setting is in the back rest supports upper end column a3 and close
The lower locating notch a35 of human body side is equipped with upper locating notch a71 in the corner of triangle part a7, under column connector a81
End inserts in lower locating notch a35 and is equipped between column connector a81 and lower locating notch a35 lower fixed connection structure,
The upper end of column connector a81 inserts in locating notch a71 and sets between column connector a81 and upper locating notch a71
There is upper fixed connection structure, is equipped in column connector a81 close to the one side of human body and is axially arranged along column connector a81
Groove body a82 is positioned, and the elastomer block a83 being stuck in the positioning groove body a82, the elastomer block a83 are added by sheet metal
Work is made.
The upper end of elastomer block a83 is stuck in the upper locating notch a71 and the locking by running through column connector a81
Tight part a84 is fixed on triangle part a7, and the lower end of elastomer block a83 is stuck in the lower locating notch a35 and by through column
The lower locking member a85 of shape connector a81 is fixed on the upper end back rest supports column a3.
The positioning groove body a82 lower end slot bottom is equipped with the bottom incline a821 tilted backwards being arranged downward, in elastomer block
The lower end of a83 is equipped with the lower inclination matching surface a831 to match with the bottom incline a821.
The positioning upper end groove body a82 has inclination forward towards the top incline a822 of upper setting, elastomer block a83's
Upper end is equipped with the upper inclination matching surface a832 to match with the top incline a822.
The bottom incline a821 and top incline a822 is parallel to each other.
The elastomer block a83 inserts in one end in lower locating notch equipped with lower limit step；It is inserted in elastomer block a83
One end in locating notch is equipped with upper limit step.
Rear side outer wall is equipped with several spaced U-shaped relief groove a833 up and down in the middle part of the elastomer block a83.
The upper fixed connection structure includes positioning tube a72 in at least one being arranged in upper locating notch, in bullet
Property block a83 upper end on rear side of be equipped with the upper fixation hole a86 being inserted into one by one for the upper positioning tube.
The lower fixed connection structure includes positioning tube a36 under at least one being arranged in lower locating notch, in bullet
Property block a83 lower end on rear side of be equipped with the lower fixed hole a87 being inserted into one by one for the lower positioning tube.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. the back side top side of the supporting mechanism of backrest of rotary chair frame, including rectangular backrest frame (a6), rectangular backrest frame (a6) passes through three
Corner fittings (a7) is connected with support frame, which is characterized in that the support frame is including fixed seat frame (a1) and is connected to fixed seat frame
(a1) fixed column on rear side (a2) further includes back rest supports column (a3), is equipped with matching hole in the lower end of back rest supports column (a3)
(a31) and fixed column (a2) inserts in the matching hole (a31), is equipped on the hole wall of matching hole (a31) several along matching
The adjustment hole (a32) for closing the setting of hole (a31) axially spaced-apart, is equipped with U in one end that fixed column (a2) inserts in matching hole (a31)
One end of shape resilient locking element (a4) and U-shaped resilient locking element (a4) inserts in any one adjustment hole (a32), in fixed column
(a2) it inserts in be equipped between one end in matching hole (a31) and back rest supports column (a3) and adjusts guiding mechanism, back rest supports column
(a3) upper end is connect by flexible connection mechanism (a8) with triangle part (a7).
2. the supporting mechanism of backrest of rotary chair frame according to claim 1, which is characterized in that the flexible connection mechanism
It (a8) include the column connector made of rubber material (a81), setting is in the back rest supports column upper end (a3) and close to human body one
The lower locating notch (a35) of side is equipped with upper locating notch (a71) in the corner of triangle part (a7), column connector (a81)
Lower end inserts in lower locating notch (a35) and is equipped with lower fixation between column connector (a81) and lower locating notch (a35) even
Binding structure, the upper end of column connector (a81) insert in locating notch (a71) and in column connector (a81) and upper positioning
It is equipped with upper fixed connection structure between notch (a71), is equipped at column connector (a81) close to the one side of human body and connects along column
The positioning groove body (a82) that fitting (a81) is axially arranged, and the elastomer block (a83) being stuck in positioning groove body (a82), bullet
Property block (a83) upper end be stuck in the upper locating notch (a71) and the upper locking member by running through column connector (a81)
(a84) it is fixed on triangle part (a7), the lower end of elastomer block (a83) is stuck in the lower locating notch (a35) and by passing through
The lower locking member (a85) of prick post shape connector (a81) is fixed on the upper end back rest supports column (a3).
3. the supporting mechanism of backrest of rotary chair frame according to claim 2, which is characterized in that the positioning groove body (a82)
Lower end slot bottom be equipped with the bottom incline (a821) tilted backwards being arranged downward, the lower end of elastomer block (a83) be equipped with it is described
The lower inclination matching surface (a831) that bottom incline (a821) matches.
4. the supporting mechanism of backrest of rotary chair frame according to claim 2, which is characterized in that the positioning groove body (a82)
Upper end has inclination forward towards the top incline (a822) of upper setting, is equipped with and the updip in the upper end of elastomer block (a83)
The upper inclination matching surface (a832) that inclined-plane (a822) matches.
5. the supporting mechanism of backrest of rotary chair frame according to claim 2, which is characterized in that the elastomer block (a83) is inserted
One end in lower locating notch is equipped with lower limit step；One end in upper locating notch is inserted in equipped with upper in elastomer block (a83)
Limited step.
6. the supporting mechanism of backrest of rotary chair frame according to claim 2, which is characterized in that in the elastomer block (a83)
Outer wall is equipped with several spaced U-shaped relief grooves (a833) up and down on rear side of portion.
7. the supporting mechanism of backrest of rotary chair frame according to claim 2, which is characterized in that the upper fixed connection structure
Including positioning tube (a72) in at least one that is arranged in upper locating notch, it is equipped on rear side of the upper end of elastomer block (a83) for institute
The upper fixation hole (a86) that the upper positioning tube stated is inserted into one by one.
8. the supporting mechanism of backrest of rotary chair frame according to claim 2, which is characterized in that the lower fixed connection structure
Including positioning tube (a36) under at least one that is arranged in lower locating notch, it is equipped on rear side of the lower end of elastomer block (a83) for institute
The lower fixed hole (a87) that the lower positioning tube stated is inserted into one by one.
9. the supporting mechanism of backrest of rotary chair frame according to claim 1, which is characterized in that the adjusting guiding mechanism packet
The guide runner (a5) for being located at and connecting in adjustment hole (a32) and with fixed column (a2) vertical sliding is included, is set on fixed column (a2)
Have at least one waist-shaped hole (a21), be fixed on guide runner (a5) at least one through the waist-shaped hole (a21) and with lean on
The guide pin (a51) of back support column (a3) connection is equipped with strip groove (a22) at the fixed column back side (a2), guide runner (a5)
In strip groove (a22) and the two sides of guide runner (a5) and the cell wall of strip groove (a22) are slidably connected, U-shaped elasticity
The one side of guide runner (a5) far from strip groove (a22) slot bottom is sticked in the middle part of lock piece (a4).
10. the supporting mechanism of backrest of rotary chair frame according to claim 2, which is characterized in that the elastomer block (a83) by
Sheet metal or nonmetal plate are processed into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131148.3A CN108968478B (en) | 2018-09-27 | 2018-09-27 | Supporting mechanism of swivel chair back frame |
Applications Claiming Priority (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108968466A (en) * | 2018-09-27 | 2018-12-11 | 浙江粤强家具科技有限公司 | Swivel chair |
| CN109527856A (en) * | 2018-12-18 | 2019-03-29 | 浙江粤强家具科技有限公司 | The bindiny mechanism of chair cushion and rear bearing sheet |
| US10477973B2 (en) * | 2016-11-01 | 2019-11-19 | Ergogenesis Workplace Solutions, Llc | Ergonomic chair |
| CN111743341A (en) * | 2020-06-17 | 2020-10-09 | 浙江粤强家具科技有限公司 | Rotation locking mechanism for backrest, lifting adjusting sleeve and support frame |
| CN111887642A (en) * | 2020-06-17 | 2020-11-06 | 浙江粤强家具科技有限公司 | Back support |
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| CN111743341A (en) * | 2020-06-17 | 2020-10-09 | 浙江粤强家具科技有限公司 | Rotation locking mechanism for backrest, lifting adjusting sleeve and support frame |
| CN111887642A (en) * | 2020-06-17 | 2020-11-06 | 浙江粤强家具科技有限公司 | Back support |
| CN111743341B (en) * | 2020-06-17 | 2024-03-01 | 浙江粤强家具科技有限公司 | Rotary locking mechanism of backrest, lifting adjusting sleeve and supporting frame |
| CN111887642B (en) * | 2020-06-17 | 2024-03-01 | 浙江粤强家具科技有限公司 | Backrest for chair |
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