CN212921220U - Unlocking system of manual angle adjuster - Google Patents

Abstract

The utility model relates to a manual angle modulation ware unblock system, it includes the base, the angle modulation ware, unblock axle and handle, the angle modulation ware is installed on the base, the unblock axle cooperates in order to unblock the angle modulation ware in inserting the angle modulation ware, this manual angle modulation ware unblock system still includes the adapter, the handle passes through the adapter and is connected in order to drive the rotation of unblock axle through the handle with the unblock axle, the handle has the guide way, the base has the side direction and stretches out the backing pin that holds in the guide way, backing pin and guide way contact when the handle receives the mistake hard with balanced external load and avoid external load to produce the influence to unblock axle and adapter. According to the utility model discloses a manual angle modulation ware unblock system, part is small in quantity, and simple structure has avoided the welding equipment, simple to operate, and low cost satisfies mass production's demand.

Description

Unlocking system of manual angle adjuster

Technical Field

The utility model relates to a car seat, more specifically relate to a manual angle modulation ware unblock system.

Background

Because the angle adjuster has the advantages of simple and convenient operation and quick adjustment of the angle of the backrest, the conventional automobile seats of various automobile types tend to adopt manual discontinuous angle adjusters. Typical discontinuous recliners have a free travel region and a lock region: the idle stroke area is convenient for quickly adjusting the angle of the backrest; the locking area fixes the backrest, provides support for passengers and guarantees safety. The discontinuous angle adjuster realizes locking and unlocking by meshing and separating the sliding locking plate with and from teeth of the toothed plate, the unlocking handle of the angle adjuster is positioned at different unlocking angle positions in the process, and the angle of the unlocking handle is higher than the locking position. When the passenger adjusts the backrest to the idle stroke, the unlocking handle is higher than the normal locking position, especially higher than the side plate of the seat, the passenger may exert larger external force on the handle due to misoperation, and the unlocking shaft is damaged when being forced by larger error.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the misuse power among the prior art leads to the damage of unlocking shaft, the utility model provides a manual angle modulation ware unblock system.

According to the utility model discloses a manual angle modulation ware unblock system, it includes the base, the angle modulation ware, unblock axle and handle, the angle modulation ware is installed on the base, the unblock axle cooperates in order to unblock the angle modulation ware in inserting the angle modulation ware, this manual angle modulation ware unblock system still includes the adapter, the handle passes through the adapter and is connected in order to drive the rotation of unblock axle through the handle with the unblock axle, the handle has the guide way, the base has the side direction and stretches out the backing pin that holds in the guide way, backing pin and guide way contact when the handle receives the mistake hard with balanced external load and avoid external load to produce the influence to unblock axle and adapter.

Preferably, the unlocking shaft has opposite connecting ends and an unlocking end inserted into the angle adjuster to be engaged therewith, and the adapter has a connecting hole into which the connecting end is inserted to drive the unlocking shaft to rotate by rotation of the adapter.

Preferably, the unlocking shaft further has a boss section located between the unlocking end and the connecting end, the adapter has a plurality of first reverse buckles laterally extending around the connecting hole, and the boss section is inserted into a structure surrounded by the first reverse buckles and is clamped through the radial inner surfaces of the first reverse buckles.

Preferably, the handle has a through hole into which the structure enclosed by the first undercut is inserted and relative sliding is achieved by the smooth radially outer surface of the first undercut.

Preferably, the handle has a plurality of circular arc grooves arranged around the through hole, the adapter has a plurality of second inversed buckles laterally extending around the first inversed buckles, and the second inversed buckles are inserted into the circular arc grooves and matched with the first inversed buckles to drive the adapter to rotate through the rotation of the handle.

Preferably, the end of the arc groove is provided with a notch, and the second reverse buckle is inserted into the arc groove through the notch to be matched.

Preferably, the manual recliner unlocking system further includes an elastic member connected between the base having a first hanging point and the handle having a second hanging point near the guide groove, opposite ends of the elastic member being connected to the first hanging point and the second hanging point, respectively.

Preferably, the angle between the handle and the adapter remains constant from the maximum unlocking position to the idle stroke initial position.

Preferably, the position of the handle remains unchanged from the lost motion stable position to the fully latched position.

Preferably, the handle and the adapter are provided with a clearance in the locking direction of the recliner.

Preferably, the base is an angle adjuster lower connecting plate, the handle is a metal handle, and the adapter is a plastic adapter.

According to the utility model discloses a manual angle modulation ware unblock system, the unblock axle that contacts when the handle receives the mistake hard through backing pin and guide way avoids external load to lead to with balanced external load damages. And, according to the utility model discloses a manual angle modulation ware unblock system, part is small in quantity, and simple structure has avoided the welding equipment, simple to operate, and low cost satisfies mass production's demand. Additionally, according to the utility model discloses a manual angle modulation ware unblock system, compact structure has better overall arrangement size, easily installs on angle modulation ware unblock system, is fit for the platform and promotes. Preferably, the adapter is a plastic adapter, which avoids noise generated by collision of the metal handle with the unlocking shaft.

Drawings

Fig. 1 is an overall schematic view of a manual recliner unlocking system according to a preferred embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the base of FIG. 2;

FIG. 4 is a schematic structural view of the unlocking shaft of FIG. 2;

FIG. 5 is a schematic structural view of the handle of FIG. 2;

FIG. 6 is a schematic structural view of the adapter of FIG. 2;

FIG. 7 is an assembled schematic view of the unlocking shaft, handle and adapter of FIG. 2;

fig. 8 shows a fully latched position of the manual recliner unlocking system of fig. 1;

fig. 9 shows a maximum unlocked position of the manual recliner unlocking system of fig. 1;

fig. 10 shows a lost motion initial position of the manual recliner unlocking system of fig. 1;

fig. 11 shows the idle stroke stable position of the manual recliner unlocking system of fig. 1.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-2, a manual recliner unlocking system according to a preferred embodiment of the present invention includes a base 1, a recliner 2, an unlocking shaft 3, a handle 4, an adapter 5, and an elastic member 6 (e.g., a tension spring), wherein the recliner 2 is installed on the base 1, the unlocking shaft 3 is inserted into the recliner 2 to be fitted to unlock the recliner 2, the handle 4 is connected with the unlocking shaft 3 through the adapter 5 to drive the rotation of the unlocking shaft 3 through the handle 4, and the elastic member 6 is connected between the handle 4 and the base 1.

As shown in fig. 3, the base 1 is a lower recliner plate having a laterally projecting catch 11 and a first hanging point 12, wherein the catch 11 engages with the handle 4 (see fig. 1, which will be explained in detail below in connection with the handle 4), and the first hanging point 12 engages with the resilient member 6 (see fig. 1, which will be explained in detail below in connection with the handle 4).

As shown in fig. 4, the unlocking shaft 3 has an unlocking end 3a, a connecting end 3b, and a boss section 3c, wherein the unlocking end 3a is inserted into the recliner 2 (see fig. 2) to be fitted, the connecting end 3b is inserted into the adapter 5 (see fig. 2) to be fitted (this will be explained in detail below in connection with the adapter 5), and the boss section 3c is located between the unlocking end 3a and the connecting end 3b to be fitted with the adapter 5 (see fig. 2) to be explained in detail below in connection with the adapter 5.

As shown in fig. 5, the handle 4 is a metal handle having a head portion 4a, a shank portion 4b and a connecting portion 4c, wherein the head portion 4a is disposed opposite to the recliner 2 (see fig. 1), the shank portion 4b is easy to be held by an operator to apply an external force to the handle 4, and the connecting portion 4c is located between the head portion 4a and the shank portion 4 b. The head 4a of the handle 4 has a through hole 41 in the center thereof, and three circular arc grooves 42 are provided around the through hole 41, wherein the through hole 41 is engaged with the adaptor 5 (see fig. 2), which will be described in detail below in connection with the adaptor 5, and the ends of the circular arc grooves 42 have notches 42a and are also engaged with the adaptor 5 (see fig. 2), which will be described in detail below in connection with the adaptor 5. The connecting portion 4c of the handle 4 has a guide groove 43 of a kidney shape, and referring to fig. 1, the stopper pin 11 of the base 1 is inserted into the guide groove 43 to cooperate to define the rotation limit of the handle 4. The connecting portion 4c of the handle 4 has a second hanging point 44 near the guide groove 43, and opposite ends of the elastic member 6 are respectively connected to the first hanging point 12 of the base 1 and the second hanging point 44 of the handle 4, see fig. 1, to draw the handle 4 toward the first hanging point 12 of the base 1 by the elastic member 6. When a wrong force F is applied to the shank 4b of the handle 4, the stopper pin 11 of the base 1 comes into contact with the guide groove 43 of the handle 4, balancing the external load, and preventing the external load from affecting the unlocking shaft 3 and the adapter 5.

As shown in fig. 6, the adaptor 5 is a plastic adaptor having a coupling hole 51 at the center thereof, and the coupling end 3b (see fig. 4) of the unlocking shaft 3 is inserted into the coupling hole 51 to be positioned. In this embodiment, the connecting end 3b of the unlocking shaft 3 is a square end, the connecting hole 51 of the adapter 5 is a square hole, and the connecting end 3b of the unlocking shaft 3 is inserted into the connecting hole 51 of the adapter 5 to drive the unlocking shaft 3 to rotate through the rotation of the adapter 5, so that the assembly process is simplified. Around the connection hole 51, the adaptor 5 has a plurality of first undercuts 52 protruding laterally, and with reference to fig. 7, the boss section 3c (see fig. 4) of the unlocking shaft 3 is inserted into the structure enclosed by the first undercuts 52 and is caught by the radially inner surfaces of the first undercuts 52, and the structure enclosed by the first undercuts 52 is inserted into the through hole 41 (see fig. 5) of the handle 4 and is slid relative thereto by the smooth radially outer surfaces of the first undercuts 52. In the present embodiment, five first reverse buckles 52 enclose one turn. Around the first reverse buckle 52, the adapter 5 has a plurality of second reverse buckles 53 protruding laterally, and with reference to fig. 7, the second reverse buckles 53 are inserted into the circular arc grooves 42 (see fig. 5) through the notches 42a (see fig. 5) to cooperate with each other so as to drive the adapter 5 to rotate through the rotation of the handle 4, thereby facilitating assembly. In the present embodiment, three second undercuts 53 enclose a circle.

In the fully locked position shown in fig. 8, (the top wall of the guide groove 43 of) the handle 4 is caught by the catch 11 under the action of the elastic member 6, and the handle 4 is in the fully locked position. The angle at which the handle 4 is located at this time is defined by the angle a1 formed by the line a' connecting the center point of rotation of the handle 4 about the adapter 5 and the contact point of the catch 11 and the guide groove 43 at the maximum unlocking position and the center line a ″ of the positioning groove of the base 1. The axis of the wall of the circular arc groove 42 away from the notch 42a is B ", and the axes of the opposite edges of the second reverse buckle 53 accommodated in the circular arc groove 42 are B, B ', respectively, wherein the included angle between the handle 4 and the adapter 5 is defined by the included angle B1 formed by B' and B ″. In particular, the axis B remains spaced apart from the axis B "to ensure that the recliner 2 can be locked down. That is, the handle 4 and the adapter 5 are provided with a clearance in the lock-down direction of the recliner 2. Specifically, the lock-down direction of the recliner 2 is counterclockwise, that is, the lock-down shaft 3 and the adapter 5 are both locked down by rotating in the counterclockwise direction, and the lock-down position of the handle 4 is determined by the stop pin 11 and the guide groove 43, and if there is no gap, the handle may prevent the manual recliner 2, the lock-down shaft 3 and the adapter 5 from being locked down to the bottom in certain situations in combination with tolerance fluctuation existing in various production processes, thereby affecting the strength of the product.

In the maximum unlock position shown in fig. 9, the handle 4 is rotated clockwise until the bottom wall of the guide groove 43 of the handle 4 is stopped by the stopper pin 11, the angle of the handle 4 is increased from a1 to a2, the second reverse buckle 53 is rotated first counterclockwise in the arc groove 42 to abut against the wall surface of the arc groove 42 and then rotated clockwise together with the handle 4, the angle of the handle 4 and the adaptor 5 is decreased from B1 to B2, thereby unlocking the recliner 2, and the backrest can be rotated freely.

In the idle stroke initial position shown in fig. 10, when the backrest rotates to the idle stroke, the handle 4 is released, the handle 4 rotates counterclockwise, the included angle of the handle 4 is rotated from a2 back to A3(a1< A3< a2), the included angle of the handle 4 and the adapter 5 is kept at B2, and the recliner 2 is in the idle stroke and is in the unlocked state.

In the idle stroke stable position shown in fig. 11, the recliner 2 is still in the idle stroke, the included angle of the handle 4 is reset to a1 under the action of the elastic member 6, the included angle between the handle 4 and the adapter 5 is increased from B2 to B3(B3> B1> B2), and the positions of the recliner 2, the unlocking shaft 3 and the adapter 5 are not changed. Turning the backrest again now brings the recliner 2 into the fully locked position shown in figure 8, i.e. the angle of the handle 4 remains a1 and the angle of the handle 4 to the adaptor 5 is rotated from B3 to B1.

What has been described above is only the preferred embodiment of the present invention, not for limiting the scope of the present invention, but various changes can be made to the above-mentioned embodiment of the present invention. All the simple and equivalent changes and modifications made according to the claims and the content of the specification of the present invention fall within the scope of the claims of the present invention. The present invention is not described in detail in the conventional technical content.

Claims (11)

1. The manual angle adjuster unlocking system is characterized by further comprising an adapter, the handle is connected with the unlocking shaft through the adapter to drive the unlocking shaft to rotate through the handle, the handle is provided with a guide groove, the base is provided with a laterally extending stop pin accommodated in the guide groove, and the stop pin and the guide groove are contacted when the handle is subjected to mistaken force to balance external load so as to avoid the influence of the external load on the unlocking shaft and the adapter.

2. The manual recliner unlocking system of claim 1 wherein the unlocking shaft has opposite connecting ends and a cooperating unlocking end inserted into the recliner, and the adapter has a connecting hole into which the connecting end is inserted to drive the rotation of the unlocking shaft by the rotation of the adapter.

3. The manual recliner unlocking system of claim 2 wherein the unlocking shaft further has a boss section between the unlocking end and the connecting end, the adapter having a plurality of first undercuts extending laterally around the connecting hole, the boss section being inserted into the structure enclosed by the first undercuts and being captured by the radially inner surface of the first undercuts.

4. The manual recliner unlocking system of claim 3 wherein the handle has a through hole into which the structure enclosed by the first undercut is inserted and relative sliding movement is achieved by a smooth radially outer surface of the first undercut.

5. The manual recliner unlocking system of claim 4 wherein the handle has a plurality of circular grooves disposed around the through hole, and the adapter has a plurality of second tumblers laterally extending around the first tumblers, the second tumblers being inserted into the circular grooves to cooperate to rotate the adapter by rotation of the handle.

6. The manual recliner unlocking system of claim 5 wherein the end of the arc slot has a notch through which the second undercut is inserted into engagement with the arc slot.

7. The manual recliner unlocking system of claim 1 further comprising a resilient member connected between the base and the handle, the base having a first hanging point, the handle having a second hanging point adjacent the guide slot, opposite ends of the resilient member being connected to the first hanging point and the second hanging point, respectively.

8. The manual recliner unlocking system of claim 1 wherein the angle between the handle and the adapter remains constant from the maximum unlocked position to the lost motion initial position.

9. The manual recliner unlocking system of claim 1 wherein the position of the handle remains unchanged from the lost motion stable position to the fully latched position.

10. The manual recliner unlocking system of claim 1 wherein in the fully latched position the handle and the adapter are provided with clearance in the latched direction of the recliner.

11. The manual recliner unlocking system of claim 1 wherein the base is a recliner lower connecting plate, the handle is a metal handle, and the adapter is a plastic adapter.

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