TWM510686U - Soft backrest adjustment device - Google Patents

Soft backrest adjustment device Download PDF

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Publication number
TWM510686U
TWM510686U TW104202505U TW104202505U TWM510686U TW M510686 U TWM510686 U TW M510686U TW 104202505 U TW104202505 U TW 104202505U TW 104202505 U TW104202505 U TW 104202505U TW M510686 U TWM510686 U TW M510686U
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TW
Taiwan
Prior art keywords
brake block
sofa
pivot
adjustment device
trolley
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Application number
TW104202505U
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Chinese (zh)
Inventor
rong-hui Chen
Original Assignee
rong-hui Chen
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Application filed by rong-hui Chen filed Critical rong-hui Chen
Priority to TW104202505U priority Critical patent/TWM510686U/en
Publication of TWM510686U publication Critical patent/TWM510686U/en

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Description

沙發椅背調整裝置Sofa back adjustment device

本新型涉及一種沙發椅的構造,特別是一種可以無段調整椅背位置的沙發椅背調整裝置。The invention relates to a structure of a sofa chair, in particular to a sofa chair back adjusting device capable of adjusting the position of the seat back without a step.

由於物質生活水準的提高以及製造技術的進步,現代化家庭中使用的沙發椅不在侷限於具有固定樣式與功能的傳統設計,另一種結合功能性、舒適性與造型的功能型沙發已成為傢俱市場的新寵。Due to the improvement of material living standards and the advancement of manufacturing technology, the sofa chairs used in modern homes are not limited to traditional designs with fixed styles and functions. Another functional sofa that combines functionality, comfort and styling has become the furniture market. New favorite.

圖1繪示了一種已知可以調整沙發椅背的功能型沙發的構造,其中沙發椅背60的中段位置可轉動地樞設有一支撐桿61,支撐桿61的另一端可轉動地樞設於沙發椅的椅座62或椅墊的內部骨架(圖中未示)。藉由支撐桿61的支撐與連接,使用者可以自由地將沙發椅背60在一第一位置和一第二位置之間任意的移動,在調整沙發椅背60時只需要將其略微抬高,以支撐桿61和椅座62的樞接處為旋轉中心將沙發椅背60擺動至另一位置,使沙發椅背60重新置放於椅墊即可完成沙發椅背60的位置調整,透過調整沙發椅背60的位置,使用者可以自由地改變沙發椅的座椅深度。1 is a view showing a configuration of a functional sofa that can be adjusted to the back of a sofa, wherein a middle portion of the sofa back 60 is rotatably pivotally provided with a support rod 61, and the other end of the support rod 61 is rotatably pivoted to The seat 62 of the sofa chair or the inner skeleton of the seat cushion (not shown). By the support and connection of the support rod 61, the user can freely move the sofa back 60 between a first position and a second position, and only needs to raise the sofa back 60 slightly. The seat back 60 is swung to another position with the pivotal center of the support rod 61 and the seat 62 as a center of rotation, so that the sofa back 60 can be repositioned on the seat cushion to complete the position adjustment of the sofa back 60. By adjusting the position of the sofa back 60, the user can freely change the seat depth of the sofa.

前述功能型沙發的可調整式沙發椅背,只能提供二個位置的調整功能,實難滿足不同身材之使用者的需要,同時其結構穩固度,調整便利性和耐用度都有不足,因此有必要加以改良。The adjustable sofa back of the functional sofa can only provide two position adjustment functions, which is difficult to meet the needs of users of different sizes, and its structural stability, adjustment convenience and durability are insufficient. It is necessary to improve it.

本新型提出了一種可以無段調整沙發椅背位置的沙發椅背調整裝置,調整沙發椅背的方式只需要透過推和拉的動作即可完成,具有容易操作的優點,且結構和支撐強度更加優秀。The present invention proposes a sofa back adjustment device that can adjust the position of the back of the sofa without a step. The method of adjusting the back of the sofa can be completed only by pushing and pulling, which has the advantages of easy operation, and the structure and support strength are more. excellent.

為實現上述功能,本新型沙發椅背調整裝置的一實施例,包括一基座,一滑車和一單向止推機構;基座固設於沙發的椅座,基座具有一滑軌和一齒條;滑車具有一支架用以連結並支撐沙發椅背,滑車可以沿著滑軌在滑軌的一第一位置和一第二位置之間來回移動;單向止推機構裝設於滑車,單向止推機構包含一制動塊和一彈性元件,常態時制動塊位於單向制動位置令沙發椅背僅能朝向第二位置的方向移動,當滑車移動至第二位置可令制動塊擺動至釋放位置,令沙發椅背可自由地移回至第一位置,當滑車移動至第一位置可令制動塊回復至常態的單向制動位置。In order to achieve the above functions, an embodiment of the novel sofa back adjustment device includes a base, a pulley and a one-way thrust mechanism; the base is fixed to the seat of the sofa, and the base has a slide rail and a a rack; the pulley has a bracket for connecting and supporting the back of the sofa, and the trolley can move back and forth along a sliding rail between a first position and a second position of the slide rail; the one-way thrust mechanism is mounted on the trolley. The one-way thrust mechanism comprises a brake block and an elastic element. In the normal state, the brake block is located in the one-way braking position, so that the sofa back can only move toward the second position, and when the trolley moves to the second position, the brake block can be swung to The release position allows the back of the sofa to be freely moved back to the first position, and when the trolley is moved to the first position, the brake block can be returned to the normal one-way braking position.

在本新型沙發椅背調整裝置的一實施例,其中制動塊以可擺動的關係樞設於滑車的一第一樞接點,基座包括一第一止擋部和一第二止擋部,當滑車和制動塊移動至第二位置,制動塊會與第二止擋部碰撞,令制動塊以第一樞接點為旋轉中心擺動至釋放位置,反之當滑車和制動塊移動至第一位置,制動塊會與第一止擋部碰撞,令制動塊以第一樞接點為旋轉中心擺動至常態的單向制動位置。In an embodiment of the present invention, the brake block is pivotally disposed at a first pivoting point of the trolley, and the base includes a first stop and a second stop. When the pulley and the brake block move to the second position, the brake block will collide with the second stop, so that the brake block swings to the release position with the first pivot point as the center of rotation, and when the block and the brake block move to the first position. The brake block collides with the first stopping portion, so that the braking block swings to the normal one-way braking position with the first pivoting point as a center of rotation.

透過本新型所揭露的沙發椅背調整裝置,使用者可以自由地將椅背由前述的第一位置朝向第二位置的方向移動,用以調整沙發椅背的位置及座椅的深度,當沙發椅背移動至第二位置又可將沙發椅背重新推回至初始的第一位置,並以相同的方式自由調整沙發椅背的位置及座椅的深 度,具有容易操作的優點。Through the sofa back adjustment device disclosed in the present invention, the user can freely move the seat back from the first position toward the second position to adjust the position of the back of the sofa and the depth of the seat, when the sofa The back of the seat is moved to the second position, and the back of the sofa back can be pushed back to the initial first position, and the position of the back of the sofa and the depth of the seat can be freely adjusted in the same manner. Degree, has the advantage of easy operation.

以下配合圖式所描述的內容係為用於實現本新型上述之目的、實施例、技術特徵及其功效的較佳實施方式,並非用以限定本新型。The following description of the drawings is a preferred embodiment for the purpose of the present invention, the embodiments, the technical features and the functions thereof, and is not intended to limit the present invention.

「習知技術」"Knowledge Technology"

60‧‧‧沙發椅背60‧‧‧Sofa back

61‧‧‧支撐桿61‧‧‧Support rod

62‧‧‧椅座62‧‧‧ seat

「本新型」"This new type"

P1‧‧‧第一位置P1‧‧‧ first position

P2‧‧‧第二位置P2‧‧‧ second position

S‧‧‧沙發S‧‧‧ sofa

S10‧‧‧椅座S10‧‧‧ seat

S11‧‧‧椅墊S11‧‧‧Cushion

S12‧‧‧沙發椅背S12‧‧‧Sofa back

10‧‧‧基座10‧‧‧ Pedestal

11‧‧‧滑軌11‧‧‧Slide rails

12‧‧‧齒條12‧‧‧ rack

121‧‧‧齒部121‧‧‧ teeth

13‧‧‧第一止擋部13‧‧‧First stop

14‧‧‧第二止擋部14‧‧‧Second stop

20‧‧‧滑車20‧‧‧ tackle

21‧‧‧支架21‧‧‧ bracket

22A‧‧‧第一樞接點22A‧‧‧First pivot point

23A‧‧‧第一樞軸23A‧‧‧First pivot

23B‧‧‧第二樞軸23B‧‧‧Second pivot

30‧‧‧單向止推機構30‧‧‧One-way thrust mechanism

40‧‧‧制動塊40‧‧‧ brake pads

41‧‧‧棘齒41‧‧‧ ratchet

42‧‧‧第一觸擊端42‧‧‧first strike end

43‧‧‧第二觸擊端43‧‧‧second strike end

44‧‧‧第一滑槽44‧‧‧First chute

441‧‧‧第一端441‧‧‧ first end

442‧‧‧第二端442‧‧‧ second end

45‧‧‧第二滑槽45‧‧‧Second chute

451‧‧‧卡制端451‧‧‧Card end

452‧‧‧推舉端452‧‧‧"

50‧‧‧彈性元件50‧‧‧Flexible components

51‧‧‧自由端51‧‧‧Free end

圖1,為已知可以調整沙發椅背的功能型沙發的構造及其動作。Fig. 1 is a view showing the structure and operation of a functional sofa which can be adjusted to the back of a sofa.

圖2,為本新型沙發椅背調整裝置的一實施例的構造分解圖。Fig. 2 is an exploded perspective view showing an embodiment of the sofa seat back adjusting device of the present invention.

圖3,為本新型沙發椅背調整裝置的一實施例的局部構造分解圖。Fig. 3 is an exploded perspective view showing the structure of an embodiment of the sofa seat back adjusting device of the present invention.

圖4,為本新型沙發椅背調整裝置的一實施例的組合構造圖。Fig. 4 is a view showing the combined structure of an embodiment of the sofa back adjustment device of the present invention.

圖5,為本新型沙發椅背調整裝置的一使用示意圖,繪示沙發椅背調整裝置設於沙發的情形。FIG. 5 is a schematic view of the use of the sofa back adjustment device of the present invention, showing the situation that the sofa back adjustment device is disposed on the sofa.

圖6,為圖5的側視構造圖,繪示本新型沙發椅背調整裝置和沙發椅背的位置關係。FIG. 6 is a side view structural view of FIG. 5, showing the positional relationship between the sofa back adjustment device and the sofa back.

圖7A~圖7D,為本新型沙發椅背調整裝置的連續動作圖。7A to 7D are continuous operation diagrams of the sofa seat back adjusting device of the present invention.

首先請參閱圖2~圖4,為本新型沙發椅背調整裝置的一實施例的構造分解圖;本新型沙發椅背調整裝置的一實施例包括:一基座10,一滑車20和一單向止推機構30。First, please refer to FIG. 2 to FIG. 4 , which are structural exploded views of an embodiment of the sofa back adjustment device of the present invention; an embodiment of the novel sofa back adjustment device includes: a base 10 , a pulley 20 and a single To the thrust mechanism 30.

基座10固設於沙發S的椅座S10(見圖5及圖6)或椅墊S11的內部骨架(圖中未示,由於沙發S非本新型的創作範圍故以虛線繪示),基座10具有一滑軌11、一齒條12、一第一止擋部13和一第二止擋部14(見圖7A),齒條12具有複數個沿著齒條12之長軸方向排列的齒部121,滑軌11和齒條12的 長軸方向互相平行且沿著同一方向延伸,滑軌11的實施方式可以是圓桿狀、工型軌或其他等效元件其中的任一種,本新型圖式中繪示者係為一對互相平行的圓桿狀滑軌11,但不以此為限,在本新型的其他實施例,滑軌11可以是工型軌或其他等效元件其中的任一種,第一止擋部13和第二止擋部14分別位於滑軌11的長軸方向的兩端,本新型圖式中繪示的一種實施方式,第一止擋部13和第二止擋部14分別固設於齒條12的長軸方向的兩端。The base 10 is fixed to the seat S10 of the sofa S (see FIG. 5 and FIG. 6) or the inner skeleton of the seat cushion S11 (not shown in the drawing, because the sofa S is not shown in the dotted line of the novel), the base is shown. The seat 10 has a slide rail 11, a rack 12, a first stop portion 13 and a second stop portion 14 (see Fig. 7A). The rack 12 has a plurality of rows arranged along the long axis of the rack 12. Tooth 121, slide rail 11 and rack 12 The long axis directions are parallel to each other and extend in the same direction, and the embodiment of the slide rail 11 may be any one of a round rod shape, a work rail or other equivalent elements, and the present figure is a pair of mutual Parallel round rod-shaped slide rails 11, but not limited thereto, in other embodiments of the present invention, the slide rails 11 may be any one of a work rail or other equivalent components, the first stop portion 13 and the first The two stopping portions 14 are respectively located at two ends of the sliding rail 11 in the long axis direction. In an embodiment of the present invention, the first stopping portion 13 and the second stopping portion 14 are respectively fixed to the rack 12 . Both ends of the long axis direction.

滑車20具有一支架21用以連結並支撐沙發椅背S12,滑車20以可滑動的關係裝設於滑軌11,可以沿著滑軌11在滑軌11的一第一位置P1(見圖7D)和一第二位置P2(見圖7B)之間來回移動(所述第一位置P1和第二位置P2可視為滑車20分別移動至滑軌11的軸向兩端盡頭處的位置)。The trolley 20 has a bracket 21 for coupling and supporting the sofa back S12. The trolley 20 is slidably disposed on the slide rail 11 and can be along the slide rail 11 at a first position P1 of the slide rail 11 (see FIG. 7D). And moving back and forth between a second position P2 (see FIG. 7B) (the first position P1 and the second position P2 can be regarded as positions where the trolley 20 moves to the end of the axial ends of the slide rail 11, respectively).

單向止推機構30包含一制動塊40和一彈性元件50,制動塊40以可擺動的關係樞設於滑車20的一第一樞接點22A,制動塊40具有一棘齒41、一第一觸擊端42和一第二觸擊端43,棘齒41可以和齒條12的齒部121嚙合,制動塊40能以第一樞接點22A為旋轉中心擺動至一單向制動位置和一釋放位置其中之一處,常態時制動塊40位於單向制動位置(見圖7A),使用者可以自由地將沙發椅背S12朝向第二位置P2的方向移動,在移動的過程中制動塊40能以第一樞接點22A為旋轉中心自由的擺動,令棘齒41能滑過齒部121的表面(見圖7B),沙發椅背S12在任何位置停止時,彈性元件50的彈力可以將制動塊40的棘齒41推回至和齒部121嚙合的位置,提供單向止動的功能;當滑車20和制動塊40移動至第二位置P2,第二觸擊端43會與第二止擋部14碰撞,令制動塊40擺動至釋放位置(見圖7C),反之當滑車20和制動塊40移動至第一位置P1,第一觸擊端42會與第一止擋部13碰撞(見圖7D),令制動塊 40擺動至常態的單向制動位置;在單向制動位置的制動塊40的棘齒41和齒條12的齒部121嚙合,在釋放位置的制動塊40的棘齒41和齒條12的齒部121分離,棘齒41和齒部121嚙合時可以限制滑車20和制動塊40只能朝向滑軌11和齒條12之長軸方向的單一方向移動,在本新型圖3繪示的一實施例,滑車20及其連結的沙發椅背S12只能由第一位置P1朝向第二位置P2的方向移動,換言之單向止推機構30具有單向止動的功能,棘齒41和齒部121分離時滑車20和制動塊40可以在滑軌11和齒條12的長軸方向任意移動。The one-way thrust mechanism 30 includes a brake block 40 and a resilient member 50. The brake block 40 is pivotally disposed at a first pivot point 22A of the trolley 20. The brake block 40 has a ratchet 41 and a first a striking end 42 and a second striking end 43 , the ratchet 41 can mesh with the tooth portion 121 of the rack 12 , and the brake block 40 can swing to a one-way braking position with the first pivot point 22A as a center of rotation and One of the release positions, in the normal state, the brake block 40 is in the one-way braking position (see FIG. 7A), and the user can freely move the sofa back S12 toward the second position P2, and the brake block is moved during the movement. 40 can swing freely with the first pivot point 22A as a center of rotation, so that the ratchet 41 can slide over the surface of the tooth 121 (see FIG. 7B), and when the sofa back S12 is stopped at any position, the elastic force of the elastic member 50 can be Pushing the ratchet 41 of the brake block 40 back to the position where the tooth portion 121 is engaged, providing a one-way stop function; when the pulley 20 and the brake block 40 are moved to the second position P2, the second strike end 43 is The two stops 14 collide, causing the brake block 40 to swing to the release position (see FIG. 7C), and vice versa when the block 20 and the brake block 40 Movable to a first position P1, a first end 42 will strike the stopper portion 13 of the first collision (see FIG. 7D), so that the brake shoe 40 swings to the normal one-way braking position; the ratchet teeth 41 of the brake block 40 in the one-way braking position mesh with the tooth portions 121 of the rack 12, the ratchet teeth 41 of the brake block 40 and the teeth of the rack 12 in the release position When the portion 121 is separated, the ratchet 41 and the tooth portion 121 can be engaged to restrict the movement of the pulley 20 and the brake block 40 only in a single direction toward the long axis direction of the slide rail 11 and the rack 12, which is an implementation of the novel FIG. For example, the trolley 20 and its associated sofa back S12 can only be moved from the first position P1 toward the second position P2. In other words, the one-way thrust mechanism 30 has a one-way stop function, the ratchet 41 and the tooth portion 121. The pulley 20 and the brake block 40 can be arbitrarily moved in the long axis direction of the slide rail 11 and the rack 12 at the time of separation.

在本新型的一實施例,彈性元件50的功能係用以長態提供一彈力,用以將制動塊40維持在單向制動位置和釋放位置其中任一處。In an embodiment of the present invention, the function of the resilient member 50 is to provide a spring force for maintaining the brake block 40 in either of the one-way braking position and the release position.

為達上述功能,其中彈性元件50和制動塊40的一種實施方式如下,但不僅限於下文及其相應之圖式內容所舉之實施方式,舉凡熟悉此技術領域具有通常知識者在瞭解下述的實施方式,當可輕易完成其他的等效構造,惟此種簡易的變換仍應屬本新型的技術範疇。To achieve the above functions, an embodiment of the elastic member 50 and the brake block 40 is as follows, but is not limited to the embodiments described below and the corresponding drawings, and those skilled in the art will understand the following. In the embodiment, when other equivalent structures can be easily completed, such a simple transformation should still belong to the technical scope of the present invention.

彈性元件50可以是板片彈簧、螺旋彈簧和扭力彈簧其中的任一種,彈性元件50的一端固定於滑車20,彈性元件50的另一自由端51長態抵住制動塊40,藉由彈性元件50的彈力將制動塊40維持在單向制動位置和釋放位置其中任一處。The elastic member 50 may be any one of a leaf spring, a coil spring and a torsion spring. One end of the elastic member 50 is fixed to the trolley 20, and the other free end 51 of the elastic member 50 is long against the brake block 40 by the elastic member. The spring force of 50 maintains the brake block 40 in either of the one-way braking position and the release position.

制動塊40具有一第一滑槽44和一第二滑槽45,第一滑槽44可以是一種沿者直線或弧線延伸的狹長形滑槽,第二滑槽45係為一種具有轉折的狹長形滑槽,滑車20的第一樞接點22A設有一第一樞軸23A,第一樞軸23A以鬆配合的關係對應穿過第一滑槽44,滑車20還具有一第二樞軸23B,第二樞軸23B以鬆配合的關係對應穿過第二滑槽45,常態時第一樞軸 23A位於第一滑槽44的一第一端441,第二樞軸23B位於第二滑槽45的一卡制端451,當滑車20朝向第二位置P2的方向移動,第二樞軸23B係卡置在卡制端451同時帶動制動塊40一起朝向第二位置P2的方向移動,常態時制動塊40位於單向制動位置(見圖7A),當滑車20和制動塊40移動至第二位置P2,第二觸擊端43會與第二止擋部14碰撞,第一樞軸23A將會滑動至位於第一滑槽44之另一端的一第二端442,而此同時第二樞軸23B將滑動至位於第二滑槽45之另一端的一推舉端452(見圖7C),藉由第二樞軸23B將制動塊40的棘齒41向上舉起而與齒條12的齒部121分離,令制動塊40擺動至釋放位置,在彈性元件50的彈力的推抵之下可以令第二樞軸23B暫時停留在推舉端452,進而令制動塊40暫時維持在釋放位置;反之當滑車20和制動塊40移動至第一位置P1,第一觸擊端42會與第一止擋部13碰撞,致使第一樞軸23A回到第一滑槽44的一第一端441(即前述的常態位置),而第二樞軸23B也再次回到第二滑槽45的卡制端451,同時令制動塊40擺動回常態的單向制動位置。The brake block 40 has a first sliding slot 44 and a second sliding slot 45. The first sliding slot 44 can be an elongated slot extending along a straight line or an arc. The second sliding slot 45 is a narrow and long with a turning. The first pivoting point 22A of the trolley 20 is provided with a first pivot 23A. The first pivot 23A corresponds to the first sliding slot 44 in a loose fit relationship, and the trolley 20 further has a second pivot 23B. The second pivot shaft 23B corresponds to the second sliding slot 45 in a loosely fitting relationship, and the first pivot shaft in the normal state. 23A is located at a first end 441 of the first chute 44, and the second pivot 23B is located at a carding end 451 of the second chute 45. When the trolley 20 moves toward the second position P2, the second pivot 23B is The card is placed at the carding end 451 while the brake block 40 is moved together in the direction of the second position P2. In the normal state, the brake block 40 is in the one-way braking position (see FIG. 7A), when the trolley 20 and the brake block 40 are moved to the second position. P2, the second strike end 43 will collide with the second stop portion 14, and the first pivot 23A will slide to a second end 442 at the other end of the first chute 44, while the second pivot 23B will slide to a pushing end 452 (see FIG. 7C) at the other end of the second chute 45, and the ratchet 41 of the brake block 40 is lifted up by the second pivot 23B to the tooth portion of the rack 12. Separating, the brake block 40 is swung to the release position, and the second pivot 23B temporarily stays at the pushing end 452 under the pushing of the elastic force of the elastic member 50, thereby temporarily maintaining the brake block 40 in the release position; The trolley 20 and the brake block 40 are moved to the first position P1, and the first strike end 42 collides with the first stop portion 13, causing the first pivot 23A Returning to a first end 441 of the first chute 44 (ie, the aforementioned normal position), and the second pivot 23B is again returned to the carding end 451 of the second chute 45, and the brake block 40 is swung back to the normal state. One-way braking position.

由上述實施例及其附圖之說明可知,透過本新型所揭露的沙發椅背調整裝置,使用者可以自由地將沙發椅背S12由前述的第一位置P1朝向第二位置P2的方向移動,用以調整沙發椅背S12的位置及座椅的深度,當沙發椅背S12移動至第二位置P2又可將沙發椅背S12重新推回至初始的第一位置P1,並以相同的方式自由調整沙發椅背S12的位置及座椅的深度,具有容易操作的優點。As can be seen from the description of the above embodiments and the accompanying drawings, the user can freely move the sofa back S12 from the first position P1 toward the second position P2 by the sofa back adjustment device disclosed in the present invention. For adjusting the position of the sofa back S12 and the depth of the seat, when the sofa back S12 is moved to the second position P2, the sofa back S12 can be pushed back to the initial first position P1 and freely in the same manner. Adjusting the position of the sofa back S12 and the depth of the seat has the advantage of being easy to handle.

以上所述之實施例及/或實施方式,僅是用以說明實現本新型技術的較佳實施例及/或實施方式,並非對本新型技術的實施方式作任何形式上的限制,任何熟習相像技術者,在不脫離本新型內容所揭露之技術 手段的範圍,當可作些許之更動或修飾為其他等效的實施例,但仍應視為與本新型實質相同之技術或實施例。The embodiments and/or the embodiments described above are merely illustrative of preferred embodiments and/or implementations of the present invention, and are not intended to limit the implementation of the present invention in any form. Without departing from the teachings of this novel content The scope of the invention may be modified or modified as other equivalent embodiments, but still should be considered as the same or the same.

10‧‧‧基座10‧‧‧ Pedestal

11‧‧‧滑軌11‧‧‧Slide rails

12‧‧‧齒條12‧‧‧ rack

121‧‧‧齒部121‧‧‧ teeth

13‧‧‧第一止擋部13‧‧‧First stop

20‧‧‧滑車20‧‧‧ tackle

21‧‧‧支架21‧‧‧ bracket

30‧‧‧單向止推機構30‧‧‧One-way thrust mechanism

40‧‧‧制動塊40‧‧‧ brake pads

43‧‧‧第二觸擊端43‧‧‧second strike end

Claims (7)

一種沙發椅背調整裝置,用以無段調整一沙發之沙發椅背的位置,包括一基座,一滑車和一單向止推機構;該基座固設於該沙發,該基座具有一滑軌、一齒條、一第一止擋部和一第二止擋部,該齒條具有複數個沿著齒條之長軸方向排列的齒部;該滑車具有一支架用以連結並支撐該沙發椅背,該滑車可以沿著該滑軌在一第一位置和一第二位置之間來回移動;該單向止推機構裝設於該滑車,該單向止推機構包含一制動塊和一彈性元件,該制動塊具有一棘齒,該制動塊以可擺動的關係樞設於該滑車的一第一樞接點,常態時該制動塊位於一單向制動位置,該棘齒和該齒部嚙合令該沙發椅背僅能朝向該第二位置的方向移動,該滑車移動至該第二位置,該制動塊會與該第二止擋部碰撞,令該制動塊以該第一樞接點為旋轉中心擺動至一釋放位置,在該釋放位置的該制動塊的該棘齒和該齒條的該齒部分離,該滑車移動至該第一位置,該制動塊會與該第一止擋部碰撞,令該制動塊以該第一樞接點為旋轉中心擺動至常態的該單向制動位置。 A sofa back adjustment device for adjusting the position of a sofa back of a sofa without a segment, comprising a base, a pulley and a one-way thrust mechanism; the base is fixed to the sofa, the base has a a slide rail, a rack, a first stop portion and a second stop portion, the rack having a plurality of teeth arranged along a long axis direction of the rack; the pulley has a bracket for connecting and supporting a back of the sofa, the trolley is movable back and forth along the slide rail between a first position and a second position; the one-way thrust mechanism is mounted on the trolley, the one-way thrust mechanism includes a brake block And a resilient member, the brake block has a ratchet, the brake block is pivotally disposed at a first pivoting point of the trolley, and in the normal state, the brake block is located at a one-way braking position, the ratchet and the ratchet The toothed engagement causes the sofa back to move only in a direction toward the second position, the trolley moves to the second position, and the brake block collides with the second stop to cause the brake block to be the first The pivot point is swung to a center of rotation to a release position in the release position The ratchet of the brake block is separated from the tooth portion of the rack, the trolley moves to the first position, and the brake block collides with the first stop, so that the brake block is at the first pivot point The center of rotation swings to the normal one-way braking position. 如請求項1所述的沙發椅背調整裝置,其中該滑軌可以是圓桿狀滑軌和工型軌其中的任一種。 The sofa back adjustment device of claim 1, wherein the slide rail is any one of a round bar slide rail and a work rail. 如請求項2所述的沙發椅背調整裝置,其中該滑軌係為一對互相平行的圓桿狀滑軌。 The sofa back adjustment device according to claim 2, wherein the slide rail is a pair of parallel rod-shaped slide rails. 如請求項1所述的沙發椅背調整裝置,其中該第一止擋部和該第二止擋部分別固設於該齒條的長軸方向的兩端。 The sofa back adjustment device according to claim 1, wherein the first stop portion and the second stop portion are respectively fixed to both ends of the rack in the longitudinal direction. 如請求項1所述的沙發椅背調整裝置,其中該彈性元件可以是板片彈簧、螺旋彈簧和扭力彈簧其中的任一種。 The sofa back adjustment device of claim 1, wherein the elastic member is any one of a leaf spring, a coil spring, and a torsion spring. 如請求項1所述的沙發椅背調整裝置,其中該彈性元件的一端固定於該滑車,該彈性元件的另一自由端常態抵住該制動塊。 The sofa back adjustment device of claim 1, wherein one end of the elastic member is fixed to the trolley, and the other free end of the elastic member normally faces the brake block. 如請求項1所述的沙發椅背調整裝置,其中該制動塊具有一第一滑槽和一第二滑槽,該第一滑槽可以是一種沿者直線或弧線延伸的狹長形滑槽,該第二滑槽係為一種具有轉折的狹長形滑槽,該滑車的該第一樞接點設有一第一樞軸,該第一樞軸以鬆配合的關係對應穿過該第一滑槽,該滑車還具有一第二樞軸,該第二樞軸以鬆配合的關係對應穿過該第二滑槽,常態時該第一樞軸位於該第一滑槽的一第一端,該第二樞軸位於該第二滑槽的一卡制端,該滑車和制動塊移動至該第二位置,該制動塊會與該第二止擋部碰撞,該第一樞軸將滑動至位於該第一滑槽之另一端的一第二端,同時該第二樞軸將滑動至位於該第二滑槽之另一端的一推舉端,藉由該第二樞軸將該制動塊的該棘齒向上舉起而與該齒部分離;該滑車和該制動塊移動至該第一位置,該制動塊會與該第一止擋部碰撞,致使該第一樞軸回到該第一滑槽的該第一端,該第二樞軸回到該第二滑槽的該卡制端,令該制動塊擺動回常態的該單向制動位置。 The sofa back adjustment device of claim 1, wherein the brake block has a first sliding slot and a second sliding slot, and the first sliding slot can be an elongated sliding slot extending along a straight line or an arc. The second chute is an elongated trough having a turn, the first pivot point of the trolley is provided with a first pivot, and the first pivot passes through the first chute in a loose fit relationship. The second pivoting shaft has a second pivoting shaft, and the second pivoting shaft passes through the second sliding slot in a loosely fitting relationship. In a normal state, the first pivoting shaft is located at a first end of the first sliding slot. a second pivot is located at a latching end of the second chute, the block and the brake block are moved to the second position, the brake block collides with the second stop, and the first pivot will slide to a second end of the other end of the first chute, and the second pivot will slide to a pushing end at the other end of the second chute, the second pivot pivoting the brake block The ratchet is lifted up to be separated from the tooth; the block and the brake block are moved to the first position, and the brake block is a stop portion collides, causing the first pivot to return to the first end of the first sliding slot, the second pivot returning to the locking end of the second sliding slot, causing the braking block to swing back to the normal state The one-way braking position.
TW104202505U 2015-02-13 2015-02-13 Soft backrest adjustment device TWM510686U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWD216166S (en) 2021-04-23 2021-12-21 陳振滄 Mobile adjusting device for seat back

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWD216166S (en) 2021-04-23 2021-12-21 陳振滄 Mobile adjusting device for seat back

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