CN2912369Y - Slidable seat base - Google Patents

Abstract

A seat base capable of sliding comprises a base, a tailstock and a tension adjusting device; the base is pivoted with a traction piece at two sides, the traction piece can rotate relative to the base, and one side of the two traction pieces is pivoted at the front end of the seat cushion; the tailstock is provided with a first end and a second end, the first end is pivoted at the second end of the base and can generate relative pivot and swing relation, the second end of the tailstock is provided with a combination part, the combination part is combined with the backrest, a traction part is also formed between the two ends of the tailstock and can be pivoted at the rear end of the seat cushion; therefore, when the backrest tilts backwards, the traction part of the tailstock and the traction piece can lead the seat cushion to synchronously generate a stable sliding action.

Description

Slidable seat base

technical field

The utility model mainly discloses a seat base, especially a slidable seat base that can reduce failure rate and cost.

technical background

Generally, traditional seats are designed with the function of reclining the backrest. However, when the backrest is reclining, the seat cushion remains in place and cannot follow the backrest movement, and the distance between the backrest and the end of the seat cushion will be too large. It makes it impossible for the occupant to lean against the backrest completely obediently, and at the same time, the leg joints will be stuck on the front edge of the raised seat cushion, making it uncomfortable to use. The applicant has devised a slidable seat base as follows:

Referring to the conventional slidable seat base of FIG. 10 , it mainly includes a base 10 and a tailstock 20; the base 10 has a first end and a second end, and the two sides of the base 10 are respectively provided with a wall Plate 11, a track 12 is formed on the upper edge of the wall plate 11; the tailstock 20 is pivotally mounted on the two side wall panels 11 of the base 10, and can pivot and tilt relative to the base 10. The tailstock 20 has The first end and the second end, the second end of the tailstock 20 can be connected with a backrest 62, and the two sides of the tailstock 20 are respectively combined with an armrest frame 25, and the armrest frame 25 can be pivoted to a base plate 50, the base plate The top side of 50 can be used for installing seat cushion 63, and the position of the bottom side of this bottom plate 50 relative to this base 10 rail 12 is respectively provided with a roller 51, and this roller 51 can move on this rail 12; By this, When the backrest 62 is tilted backward, the tailstock 20 can simultaneously drive the bottom plate 50 to move backward, so that the seat cushion 63 can move backward horizontally.

And conventional structure is because this roller 51 only utilizes the self-weight of seat cushion 63 to contact on this rail 12, there is not the design of mutual limit between this roller 51 and this rail 12, so easily be caused by improper riding mode of the consumer or Improper external force collision causes the roller 51 to deviate from the track 12 and fall off, resulting in a fault.

Furthermore, its overall structural design is relatively complicated, such as the design of the tension adjustment device 30 and the positioning device 40, and the assembly and cooperation between components, which cannot effectively simplify the manufacturing process, and of course cannot reduce the production cost.

In view of the lack of the above-mentioned conventional structure, the creator of the utility model invented a slidable seat base, which can achieve the backward movement of the seat cushion to maintain the level when the backrest is reclined, which can overcome the above-mentioned habit. All defects of the product.

Contents of the invention

The purpose of the utility model is to provide a slidable seat base, which overcomes the shortcomings of the above-mentioned known structures, and provides a seat cushion that can slide smoothly without falling off; the structure is simple, easy to assemble, and convenient for users Operational and neat and beautiful seat base structure.

The technical solution of the utility model: a slidable seat base, characterized in that it comprises:

A pedestal has a first end and a second end, and the two sides of the first end are respectively pivotally connected with a driving member that can rotate relative to the base, and one side of the two driving members is pivotally connected to the front end of the seat cushion;

A tailstock has a first end and a second end, the first end is pivotably connected to the second end of the base, and the second end of the tailstock has a joint, the joint Combined with the backrest, there is also a traction part between the two ends of the tailstock, and the traction part is pivotally connected to the rear end of the seat cushion.

Wherein, a tongue portion extends radially from the driving member, and the tongue portion is pivotally connected to the pin at the front end of the bottom of the seat cushion.

Wherein, there are pivot holes on both sides of the second end of the base, and the first end of the tailstock has a pivot joint, and the pivot joint is pivotally connected to the pivot holes of the base, and the connection between the base and the tailstock There is also a tension adjustment device between.

Wherein, the tailstock has a top catch part below the pivotal part, and the base has a slide groove below the pivot hole relative to the top catch part of the tailstock, and the top catch part is pierced with a top catch rod, The jacking rod extends through the slide groove of the base and contacts with the tension adjusting device.

Wherein, the tension adjusting device includes a screw rod, a passive part and an elastic part, the screw rod is longitudinally located in the base, the passive part is sleeved on the screw rod in an axially displaceable manner, and the two ends of the elastic part are respectively The jack is on the jack lever of the passive part and the tailstock.

Wherein, the tension adjusting device also includes a fixing part, and the fixing part is located between the elastic part and the top lever of the tailstock.

Wherein, the tension adjusting device further includes an adjusting rod which can be operated by the user, the adjusting rod has a user-operated end, and the other end is in contact with the screw rod.

Wherein, there is also a positioning device between the base and the tailstock, and several positioning holes are opened on the tailstock, the positioning device includes a positioning piece and an operating rod that can be used to operate the positioning piece, the positioning piece It is located in the second end of the base, and one end of the positioning member passes through the base and extends into the positioning hole of the tailstock.

Wherein, the positioning device also includes a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively connected between the operating rod and the positioning member, and the two ends of the second connecting rod are respectively Connected between the first connecting rod and the positioning piece.

Wherein, a limiting end is extended from one end of the first connecting rod, and a position-limiting member is provided in the base relative to the limiting end and can be mutually positioned with the limiting end.

The utility model has the following beneficial effects:

1. In the slidable seat base of the present invention, the two driving parts are respectively pivotally connected to the front end of the bottom of the seat cushion, which can be used to ensure a smooth sliding movement of the seat cushion without the disadvantage of falling off.

2. The slidable seat base of the present invention has a simple structure and is easy to assemble, so the manufacturing process and mass production can be simplified, and the cost can be effectively reduced.

3. In the slidable seat base of the present invention, the adjustment rod can be installed in the control rod or the operating rod, which is not only convenient for the user to operate, but also has a neat and beautiful effect.

Description of drawings

Fig. 1: is the side view of the utility model.

Fig. 2: is the three-dimensional exploded view of the utility model.

Fig. 3: is the three-dimensional exploded view of the utility model.

Fig. 4: is the upper view of the utility model.

Figure 5: is a side view of the utility model.

Fig. 6: is the upper view of the utility model.

Figure 7: is a side view of the utility model.

Fig. 8: It is a side view of the utility model, showing that the seat cushion produces sliding action.

Figure 9: is a side view of the utility model.

Fig. 10: is the three-dimensional exploded view of the conventional structure.

Detailed ways

Referring to Fig. 1 and Fig. 2, the utility model comprises a base 10, a tailstock 20 and a tension adjustment device 50 arranged between the base 10 and the tailstock 20; 11, which can be used to be pivotally connected to the front end of the seat cushion 63, and the tailstock 20 has a traction portion 24, which can be used to pivotally connect to the rear end of the seat cushion 63; thereby the traction portion 24 and the pulling member 11 can be Make the seat cushion 63 produce a smooth sliding action. in:

Referring to Fig. 3 to Fig. 5, the base 10 is approximately in the shape of a rectangle, and its bottom forms a curved design. The base 10 has a first end and a second end, and the first end is respectively pivoted with a The pulling member 11 is rotatable relative to the base 10, and a tongue 111 extends radially from the driving member 11, and the tongue 111 can be used to pivotally connect to the pin at the front end of the bottom of the seat cushion 63. 631 (as shown in Figure 2). A first support plate 12 and a second support plate 13 are disposed inside the first end of the base 10 , and a third support plate 14 is connected between the two support plates 12 and 13 . A fourth transverse support plate 15 is disposed on the second end of the base 10 . Pivot holes 16 are formed on both sides of the base 10 close to the fourth support plate 15 , and arc-shaped slide slots 17 are formed on both sides of the base 10 close to the fourth support plate 15 .

The tailstock 20 is pivotally disposed at the pivot hole 16 of the base 10 and can generate a relative pivot relationship. The tailstock 20 is approximately in the shape of an L, and has a first end and a second end. The first end forms a pivot portion 21, and the pivot portion 21 can be pivotally mounted on the base by a pivot member 211. 10 at pivot hole 16. And the lower part of the pivotal part 21 is formed with a top check part 22 relative to the position of the chute 17 of the base 10. The top check part 22 is pierced with a top check lever 221, and the top check lever 221 can pass through the base. In the chute 17 of the seat 10. The second end of the tailstock 20 is formed with a joint part 23, and the joint part 23 can be used for combining with the backrest 62 (as shown in FIG. 2 ). A traction portion 24 is formed between two ends of the tailstock 20 , and the traction portion 24 can be pivotally connected to the pin 632 at the bottom rear end of the seat cushion 63 . The tailstock 20 is provided with a rib 25 near the traction portion 24 , and a plurality of positioning holes 26 are opened on the rib 25 .

The positioning device 30 is disposed between the base 10 and the tailstock 20 , and the positioning device 30 can be used to control a fixed state or a released state between the base 10 and the tailstock 20 . The positioning device 30 includes an operating rod 31 , a positioning member 32 and a connecting rod set 33 , 34 . An operating portion 311 extends radially from one end of the operating rod 31 , and the operating portion 311 can be used by a user to turn the operating rod 31 . One end of the operating rod 31 that is different from the operating portion 311 passes through the driving member 11 and the base 10 and is pivotally connected to the first support plate 12 , and the outer peripheral edge of the operating rod 31 is close to the edge of the first support plate 12 An ear portion 312 is also protruded from the position.

The positioning member 32 is installed on the fourth support plate 15 , and one end thereof passes through the base 10 to extend into the positioning hole 26 of the tailstock 20 . The connecting rod set 33, 34 has a first connecting rod 33 and a second connecting rod 34, one end of the first connecting rod 33 is pivotally connected to the ear 312 of the operating rod 31, and the other end is connected to the second connecting rod. 34 are connected. An end of the second connecting rod 34 different from the first connecting rod 33 is connected to an end of the positioning member 32 . Therefore, when the operating rod 31 pivots relative to the base 10 , it will link the connecting rods 33 , 34 to drive the positioning member 32 to produce a sliding movement. The second link 34 is pivotally mounted on the fourth support plate 15 via a screw 341 . One end of the first connecting rod 33 extends out a limiting end 331 , and a first limiting groove 332 and a second limiting groove 333 are formed around the limiting end 331 . The position of the fourth support plate 15 relative to the limit end 331 is provided with a limit member 35, the limit member 35 can pass through the limit end 331 of the first connecting rod 33, and is positioned at the limit end 331. Inside the first limiting groove 332 of the position end 331. A spring and a steel ball are arranged in the limiting member 35 .

The height adjusting device 40 is disposed between the base 10 and the pneumatic cylinder 611 of the stand 61 , and can be used to control the lifting of the pneumatic cylinder 611 . The height adjusting device 40 includes a control rod 41 and a driving rod 42 . A control portion 411 radially extends from one end of the control rod 41 , and the control portion 411 can be used for the user to turn the control rod 41 . An end of the control rod 41 that is different from the control portion 411 passes through the driving member 11 and the base 10 to be pivotally connected to the second support plate 13 . One end of the lever 42 is pivotally connected to the control rod 41 , and the other end can be used to control the pneumatic cylinder 611 .

The tension adjusting device 50 is disposed between the base 10 and the tailstock 20 and can be used to provide elastic recovery force between the base 10 and the tailstock 20 . The tension adjusting device 50 includes an adjusting rod 51 , a screw rod 52 , a passive part 53 , an elastic part 54 and a fixing part 55 . The adjustment rod 51 extends through the control rod 41 and can generate a relative rotation relationship. A handle 511 extends radially from one end of the adjusting rod 51 , and the handle 511 can be operated by a user to rotate the adjusting rod 51 . An end of the adjusting rod 51 that is different from the handle 511 passes through the second support plate 13 and extends into the base 10 .

The screw rod 52 is longitudinally disposed on the third support plate 14 , and one end of the screw rod 52 is in contact with the adjusting rod 51 . In this embodiment, the screw rod 52 and the adjusting rod 51 cooperate with each other through helical gears. The driven element 53 is sheathed on the screw rod 52 and can generate an axial displacement relationship on the screw rod 52 . One end of the elastic member 54 is sheathed on the passive member 53 . The fixing member 55 is disposed on an end of the elastic member 54 that is different from the passive member 53 , and the end of the fixing member 55 that is different from the elastic member 54 pushes against the push rod 221 of the tailstock 20 .

Referring to FIG. 6 and FIG. 7 , it is a state diagram of operating the positioning device 30 of the present invention. When the user turns the operating lever 31 of the positioning device 30 to pivot downward, the ear portion 312 of the operating lever 31 will link the first connecting rod 33 to make the first connecting rod 33 move toward the rear of the base 10 The positioning relationship between the limiting end 331 of the first link 33 and the limiting member 35 is moved from the first limiting groove 332 to the second limiting groove 333 . While moving, the first connecting rod 33 will also drive the second connecting rod 34 to pivot around the screw 341, so that the second connecting rod 34 will pull the positioning member 32 to break away from the positioning of the tailstock 20 hole 26, thereby forming a release state between the base 10 and the tailstock 20.

Referring to FIG. 8 , it is a state diagram of the utility model when adjusting the angle of the backrest 62 to lie on its back. When the base 10 and the tailstock 20 are in a released state, the user can press the backrest 62 to lean back, and at this time, the tailstock 20 will rotate counterclockwise around the pivotal part 21, so that the traction part 24 It can drive the rear end of the seat cushion 63 to move slightly downward and backward. At the same time, the driving members 11 on both sides of the base 10 pivot counterclockwise around the adjusting rod 31 and the control rod 41 respectively, so that the tongue 111 can drive the front end of the seat cushion 63 to move downward and backward. Such synchronous action will cause the seat cushion 63 to slide backwards and downwards.

Referring to FIG. 9 , it is a state diagram of operating the positioning device 30 of the present invention. After the user adjusts the backrest 62 to the position, the positioning device 30 can be operated to make the positioning member 32 extend into the positioning hole 26 of the tailstock 20 , thereby forming a fixed state between the base 10 and the tailstock 20 . In the present invention, when the reclining angle of the backrest 62 is adjusted, the seat cushion 63 synchronously slides backwards and downwards, which can provide the user with a good and stable riding experience.

Only the above is only a preferred embodiment of the utility model, and should not be used to limit the scope of the utility model implementation, so the change of the numerical values or the replacement of equivalent components, or according to the patent scope of the utility model. All changes and modifications should still belong to the category covered by the utility model patent.

Claims (10)

1. the seat base of a slip is characterized in that, comprising:

One pedestal has first end and second end, and its first end both sides are articulated with one respectively can be with respect to the part that affects of this pedestal rotation, and this two affects a side of part to be articulated in the front end of seat cushion;

One tailstock has first end and second end, and its first end pivotally is articulated in the second end place of this pedestal, second end of this tailstock then has a joint portion, this joint portion combines with backrest, also has a tractive unit between these tailstock two ends, and this tractive unit is articulated in the rear end of seat cushion.

2. the seat base of slip as claimed in claim 1, it is characterized in that: this affects part to extend diametrically a tongue, and the pin of this tongue and seat cushion bottom front is articulated.

3. the seat base of slip as claimed in claim 1, it is characterized in that: the second end both sides of this pedestal have the pivot hole, this tailstock first end has an articulated section, and this articulated section is articulated in the place, pivot hole of this pedestal, also has a tension adjusting device between this pedestal and this tailstock.

4. the seat base of slip as claimed in claim 3, it is characterized in that: this tailstock has a top supporting part in this below, articulated section, position with respect to this tailstock top supporting part then has a chute to this pedestal in below, pivot hole, this top supporting part is installed with a top fixed pawl, and this top fixed pawl stretches through and contacts in the chute of this pedestal and with this tension adjusting device.

5. the seat base of slip as claimed in claim 4, it is characterized in that: this tension adjusting device includes a screw rod, a Passive part and an elastic component, this screw rod longitudinally is positioned at this pedestal, this Passive part can be enclosed within on this screw rod axially, and the two ends of this elastic component are then pushed up respectively and pulled on the top fixed pawl of this Passive part and this tailstock.

6. the seat base of slip as claimed in claim 5, it is characterized in that: this tension adjusting device also includes a fixture, and this fixture is between the top fixed pawl of this elastic component and this tailstock.

7. the seat base of slip as claimed in claim 5, it is characterized in that: this tension adjusting device also includes an adjusting lever that is available for users to operate, and this adjusting lever has a user operating side, and the other end then contacts with this screw rod.

8. the seat base of slip as claimed in claim 1, it is characterized in that: also have a location device between this pedestal and this tailstock, and have several locating holes on this tailstock, this positioner includes positioning piece and can be in order to operate the action bars of this keeper, this keeper is positioned at second end of this pedestal, and an end of this keeper passes this pedestal and stretches in the locating hole of this tailstock.

9. the seat base of slip as claimed in claim 8, it is characterized in that: this positioner also includes a first connecting rod and a second connecting rod, the two ends of this first connecting rod are connected on respectively between this action bars and this keeper, and the two ends of this second connecting rod then are connected on respectively between first connecting rod and this keeper.

10. the seat base of slip as claimed in claim 9, it is characterized in that: this first connecting rod one end also extends a positive stop end, then has the locating part that can locate mutually with this positive stop end with respect to the position of this positive stop end in this pedestal.

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