KR20220134921A - Recliner with improved assembly and, assembly method thereof - Google Patents

Abstract

The present invention relates to a recliner device with improved assembly and an assembly method thereof and, more specifically, to a recliner device with improved assembly, capable of reducing the number of components of a recliner and improving assembly, economic feasibility and component quality by enabling positions of internal components such as first and second wedges, a cam, a lever socket, a wedge spring and the like to be confined by an external gear itself without the need for a separate cover plate, and an assembly method thereof. In accordance with the present invention, the recliner device includes: an internal gear having a burring part protruding from the center, an internal gear formed along the inner circumferential surface of an accepting groove, and an assembly hole penetrated to communicate with the accepting groove; first and second wedges inserted into the accepting groove of the internal gear so as to be symmetrical with respect to the assembly hole; a lever socket having a coupling part with a shaft coupling hole fitted and coupled in the burring part of the internal gear; a wedge spring installed with both ends supported by the first and second wedges; and an external gear having an external gear with one side geared to the internal gear of the internal gear, having a shaft hole formed in the center to communicate with the shaft coupling hole of the lever socket, and eccentrically assembled into the accepting groove of the internal gear. Therefore, the recliner device can prevent the separation of the first and second wedges, the lever socket, and the wedge spring through the external gear.

Description

Recliner with improved assembly and assembly method thereof

The present invention relates to a recliner device with improved assembling property and an assembly method thereof, and a recliner with improved assembling property that can be assembled without installing a cover plate for preventing separation of first and second wedges, lever sockets and wedge springs. It relates to a liner device and a method for assembling the same.

In general, a recliner is a device that is installed in a coupling part connecting a cushion (saddle) and a back (backrest) of a vehicle seat so that the user can freely adjust the inclination of the back. It consists of a single assembly in which many parts such as a pair of wedges, lever sockets, cams, etc. are combined, and before being coupled to the seat, many parts constituting the recliner are assembled with each other to form one assembly, and then the cushion of the seat and It is mounted on both ends of the shaft (or rotating shaft) connecting the bag.

The recliner is coupled to a seat back (not shown) and includes an internal gear having an internal tooth difference and an external gear having an external tooth difference, wherein the internal gear and the external gear have structurally different gear sizes (the number of gear teeth) And, the external gear is eccentrically coupled to the internal gear in the assembled state by different pitch circle diameters (PCD: Pitch Circle Diameter), and the eccentric state is maintained by a pair of wedges interposed in the space between them. , the locking state or the unlocking state for the recliner operation is maintained.

Such a recliner requires precise and meticulous assembly work in the assembly process of each part as well as precise processing of each part in order to be able to repeatedly and smoothly operate without fine rattling in the seat back of which the inclination angle is adjusted. In particular, the eccentric assembly and maintenance of the internal gear and the external gear, the positioning of the pair of wedges, the rotational operability of the first and second wedges according to the assembly of the wedge spring, etc. (Locking) will have a big impact on the final quality.

That is, if the internal gear and the external gear cannot be assembled eccentrically, the recliner does not operate smoothly, and the positioning of the pair of wedges and the rotation of the first and second wedges by the wedge spring are not smoothly performed. In this case, not only a problem in the operability of the recliner occurs, but also when an external force such as a collision occurs, the strength is not secured and a safety problem occurs.

The conventionally used recliner 100 ′ has an external gear 6 provided with an installation hole 6a for assembling the recliner part in order to facilitate accurate assembly and assembly installation of the recliner part. After the eccentric assembly of the internal gear 3, the first and second wedges 1 and 2, the lever socket 4 and the wedge spring 5 are sequentially installed through the installation hole 6a of the external gear. As shown in FIG. 10 , the cover plate 8 is integrally connected to any one of the internal gear 3 or the external gear 6 by laser welding, press-fitting, etc. to install the external gear As the hole 6a is closed, the axial external separation of the internal components such as the assembled first and second wedges 1 and 2, the lever socket 4 and the wedge spring 5 is performed by the cover plate 8. At the same time being restrained, the operation of these internal parts was made to be performed stably. Unexplained reference numeral 7 denotes a bearing that is press-fitted to the internal gear, and 9 denotes a cover.

That is, the conventional recliner 100 ′ is an external gear 6 for assembling internal parts such as first and second wedges 1 and 2 , lever socket 4 , and wedge spring 5 . is formed in the form in which the center is drilled, that is, an installation hole 6a through which internal parts can be inserted into the external gear 6,

As such, when the installation hole 6a for assembling the internal parts is provided in the center of the external gear, the strength of the external gear 6 itself is reduced, and during the heat treatment process of the external gear, the installation hole As a result, deformation (defective roundness) occurs in the shape of the external gear, or deformation occurs in the tooth shape contour of the external gear formed on the outer peripheral surface, resulting in deterioration of the quality of the external gear. There was a problem in that the operability was lowered and the reliability of the operation of the recliner was lowered.

In particular, in the conventional recliner, since a separate cover plate must be installed to prevent separation of internal parts, the assembly process is complicated, and manufacturing costs are increased due to an increase in the number of parts.

Registered Patent Publication No. 10-1419700 (2014.07.09) Registered Patent Publication No. 10-1184190 (September 13, 2012) Registered Patent Publication No. 10-1739469 (2017.05.18) Registered Patent Publication No. 10-1330028 (2013.11.11)

An object of the present invention is to restrict the position of the recliner by the external gear itself, without a separate cover plate for constraining the position of internal components such as first and second wedges, cams, lever sockets, wedge springs, etc. An object of the present invention is to provide a recliner device with improved assembling properties and an assembling method thereof, in which the number of parts is reduced and the assembling property, economic feasibility and quality of the parts can be improved.

An object of the present invention is to increase the convenience of assembly of the recliner by sequentially assembling the first and second wedges, the cam, the lever socket, and the wedge spring in the receiving groove of the internal gear, and then eccentrically assembling the external gear. To provide a recliner device with improved performance and an assembly method thereof.

The recliner according to the present invention includes: an internal gear in which a burring part is protruded in the center, an internal tooth is formed along the inner circumferential surface of the accommodating groove, and an assembly hole is formed to communicate with the accommodating groove; first and second wedges inserted into the receiving grooves of the internal gear so as to be symmetrical with respect to the assembly hole; a lever socket into which a coupling part having a shaft coupling hole is fitted into the burring part of the internal gear; a wedge spring installed to support both ends of the first and second wedges; An external gear having an external gear having one side engaged with the internal gear of the internal gear, a shaft hole communicating with the shaft coupling hole of the lever socket is formed in the center, and an external gear eccentrically inserted into the receiving groove of the internal gear) , is configured to prevent separation of the first and second wedges, the lever socket, and the wedge spring by the external gear.

In the recliner according to the present invention, the first and second wedges, the cam, and the lever socket are sequentially assembled in the receiving groove of the internal gear, and the position of the wedge spring is supported by a spring-loaded tool, After the tunnel gear is eccentrically assembled, both ends of the wedge spring are supported in contact with the first and second wedges by the removal of the spring mounting tool, so that the recliner is assembled.

In the present invention, the internal parts such as the first and second wedges, cams, lever sockets, wedge springs, etc. are wrapped by the external gear itself without a separate cover plate so that the position is constrained, so that the number of parts of the recliner is reduced and There is an effect of improving assembly and economic efficiency.

In the present invention, the external gear does not have an installation hole for assembling and installing internal parts, so the strength of the external gear is improved, and during the heat treatment process of the external gear, deformation of the tooth profile of the external gear and the external Since the gear itself does not deform, it is possible to secure a stable tooth shape, and this has the effect of improving the quality, assembly, and operability of the external gear.

According to the present invention, after the first and second wedges, cams, lever sockets, and wedge springs are assembled to the internal gear by forming an assembly hole for insertion of the spring-loading tool into the internal gear, the external gear is mounted on the internal gear. Compared to the conventional recliner assembly process in which the first and second wedges, cams, lever sockets, and wedge springs are assembled in a state where the external gear is pre-assembled to the internal gear as it is assembled eccentrically, assembling is made easier and , there is an effect that the correct assembly of the internal parts is made.

In the present invention, since the assembly process of the cover plate having a simple cover function can be omitted, the assembly process is simplified, thereby reducing the assembly time and improving productivity.

1 is an exemplary view showing a configuration according to the present invention;
2 is another exemplary view showing a configuration according to the present invention;
Figure 3 is an exemplary view showing the assembly state of the recliner according to the present invention
4 is an exemplary view showing the configuration of an internal gear according to the present invention;
5 is an exemplary view showing the configuration of the first and second wedges according to the present invention;
6 is an exemplary view showing the configuration of a lever socket according to the present invention;
7 is an exemplary view showing the configuration of an external gear according to the present invention;
8 is an exemplary view showing another configuration according to the present invention;
9 is an exemplary view showing an assembly process according to the present invention;
10 is an exemplary view showing the configuration of a conventional recliner

Figure 1 is an exemplary view showing a configuration according to the present invention, Figure 2 is another exemplary view showing a configuration according to the present invention, Figure 3 is an exemplary view showing the assembly state of the recliner according to the present invention, Figure 4 is an exemplary view showing the configuration of the internal gear according to the present invention, Figure 5 is an exemplary view showing the configuration of the first and second wedges according to the present invention, Figure 6 is an example showing the configuration of the lever socket according to the present invention 7 is an exemplary diagram showing the configuration of an external gear according to the present invention, and FIG. 8 is an exemplary diagram showing another configuration according to the present invention,

According to the present invention, the external gear 60 coupled to the internal gear 30 is eccentrically rotated while the first and second wedges 10 and 20 are rotated by rotation of the lever socket 40 to rotate the seat back angle. In the recliner 100 is adjusted;

The recliner 100 is

An internal gear having a burring part 34 protruding from the center, an internal gear 33 formed along the inner circumferential surface of the accommodating groove 31, and having an assembly hole 32 penetrated so as to communicate with the accommodating groove 31 ( 30);

first and second wedges (10, 20) inserted into the receiving groove (31) of the internal gear so as to be symmetrical with respect to the assembly hole (32);

a lever socket 40 into which the coupling part 41 provided with the shaft coupling hole 41a is fitted in the burring part 34 of the internal gear;

a wedge spring 50 installed to support both ends of the first and second wedges 10 and 20;

An external gear 61a having one side engaged with the internal gear 33 of the internal gear is provided, and a shaft hole 62a communicating with the shaft coupling hole 41a of the lever socket is formed in the center, and the internal gear is accommodated. The first and second wedges 10 and 20, the lever socket 40 and the wedge spring 50 by the external gear 60, including; It is designed to prevent escape.

The internal gear 30 is connected to and installed on a seat back (not shown), and as shown in FIGS. 1 to 4 , the first and second wedges 10 and 20 , the lever socket 40 and the wedge spring ( 50) is formed with an accommodating groove 31 in which the components are assembled, and an assembly hole 32 is formed to communicate with the accommodating groove 31, and one side of the external gear of the external gear is coupled to the inner circumferential surface of the accommodating groove. An internal gear 33 is formed, and a burring part 34 is protruded in the center of the receiving groove.

The assembly hole 32 is a spring mounting tool ( 200) is inserted, and the corresponding surfaces 11a and 21a of the first and second wedges inserted into the receiving groove 31, that is, the opposite ends 51 and 52 of the wedge springs are contacted and supported by the first and second wedges. It is formed through the internal gear 30 so as to be positioned between the corresponding surfaces 11a and 21a.

That is, when the first and second wedges 10 and 20 are symmetrically inserted into the receiving groove 31 so that the contact surfaces 11b and 21b of the first and second wedges are in contact with each other, the assembly hole 32 faces each other. It is formed through the internal gear 30 so as to be positioned between the corresponding surfaces 11a and 21a of the first and second wedges.

As shown in FIGS. 1 and 2, the first and second wedges 10 and 20 are symmetrical to each other in the receiving groove 31 so as to be positioned between the internal gear 33 of the internal gear and the burring part 34. As shown in FIG. 5 , the contact surfaces 11b and 21b and the corresponding surfaces 11a and 21a are formed with a step difference at one end 11 and 21 facing each other, and the lever is rotated The other ends 12 and 22 are brought into contact with the socket 40 to compress (contract) the wedge spring and move in the rotational direction of the lever socket.

That is, the first and second wedges 10 and 20 are configured so that both ends of the wedge spring are supported in contact, and are operated in a direction away from each other by the elastic force of the wedge spring to lock the recliner, and the lever The socket is operated to be close to each other by the rotation operation of the socket, so that the reclining operation (unlocking) is made.

The lever socket 40 is shaft-coupled to a drive shaft (not shown), and during rotation operation, the first and second contact protrusions contact the first wedge 10 or the second wedge 20 to thereby contact the lever socket 40 . It has a function to allow the rotation of the first and second wedges 10 and 20 in the rotation direction of the .

The lever socket 40 is sufficient as long as the first and second wedges 10 and 20 are configured to rotate while contracting/relaxing the wedge spring 50, so the configuration is not limited thereto.

For example, as shown in FIG. 6 , the lever socket 40 includes the coupling part 41 coupled to the drive shaft and the spline shaft, and the first and second wedges 10 and 20 so that they can be stably mounted. Including a fixing plate 42 connected to the coupling portion 41,

The fixing plate 42 has a first contact protrusion 42a formed to be spaced apart from the other end 11b of the first wedge by a predetermined distance, and formed to be spaced apart from the other end 21b of the second wedge by a predetermined distance. The second contact protrusion 42b and the insertion hole 42c into which both ends 51 and 52 of the wedge spring are inserted are formed, and when the lever socket 40 is rotated in one direction by the drive shaft, the first contact protrusion (42a) is in contact with the other end (11b) of the first wedge, or the second contact protrusion (42b) is in contact with the other end (21b) of the second wedge, in the rotation direction of the lever socket (40) the first, The two wedges 10 and 20 may be configured to rotate.

At this time, the coupling portion 41 of the lever socket is formed to be inserted or inserted through the burring portion 34 of the internal gear having a through-hole structure, and the shaft coupling hole 41a is coupled to the drive shaft and the spline shaft. can be formed.

The wedge spring 50 is installed after the first and second wedges 10 and 20 and the lever socket 40 are inserted into the receiving groove 31 of the internal gear.

The wedge spring 50 of the present invention is not directly installed so that both ends 51 and 52 of the wedge spring are supported in contact with the corresponding surfaces 11a and 21a facing each other of the first and second wedges 10 and 20,

The insertion hole ( 42c), after both ends 51 and 52 of the wedge spring are installed, the assembly of the recliner 100 is completed, that is, when the assembly of the external gear 60 is completed, the removal of the spring mounting tool 200 is Both ends 51 and 52 are supported in contact with the corresponding surfaces 11a and 21a of the first and second wedges by means of which the first and second wedges 10 and 20 are spaced apart from each other.

As shown in FIGS. 1 to 3 and 7, the external gear 60 is a ring portion ( 61), the separation prevention part 62 integrally formed with the ring part 61 on one side of the ring part 61 and having a shaft hole 62a communicating with the coupling part 41 of the lever socket, and the ring part 61 ) and a central groove 63 formed so that one side is opened by the separation preventing part 62 and the bearing 70 is press-fitted to the inner circumferential surface. At this time, the central groove 63 includes a first central groove 63a into which the bearing 70 is press-fitted, and a second central groove 63b into which the lever socket 40 and the wedge spring 50 are inserted. can be configured to

The external gear 60 is eccentrically assembled into the receiving groove 31 of the internal gear so that the external gear 61a is coupled to one side of the internal gear 33 of the internal gear after the wedge spring 50 is installed. When the external gear 60 is assembled in this way, the first and second wedges 10 and 20 are positioned between the bearing 70 press-fitted to the external gear 60 and the burring part 34 of the internal gear. and the lever socket 40 and the wedge spring 50 are located in the central groove 63 .

The external gear 60 configured as described above has the first and second wedges 10 and 20 assembled and installed in the receiving groove 31 by the separation preventing part 62 while allowing the recliner 100 to operate. and a function of preventing the lever socket 40 and the wedge spring 50 from being separated.

That is, the external gear applied to the conventional recliner is of a ring type having an external tooth on the outer circumferential surface for assembling a pair of wedges, a lever socket, and a wedge spring, and having a central hole,

The external gear 60 according to the present invention is configured such that the separation prevention part is integrally formed on the ring-type ring part provided with the external tooth difference, and the central groove is formed by the step difference between the ring part and the separation prevention part, so that the bottom of the central groove The surface 63c (corresponding to one side of the separation prevention part) is in contact with one side of the lever socket 40 and the wedge spring 50, and the lever socket 40 and the wedge spring 50 and the first and second wedges 10 and 20 ) to be supported.

In addition, in the recliner 100 of the present invention, as shown in FIG. 8 , a cam 80 is further installed between the first and second wedges 10 and 20 and the burring part 34 of the internal gear. can

That is, the recliner 100 of the present invention,

An internal gear having a burring part 34 protruding from the center, an internal gear 33 formed along the inner circumferential surface of the accommodating groove 31, and having an assembly hole 32 penetrated so as to communicate with the accommodating groove 31 ( 30);

a cam 80 installed with one side in contact with the burring part 34 of the internal gear so as to be positioned between the burring part 34 of the internal gear and the assembly hole 32;

first and second wedges (10, 20) inserted into the receiving groove (31) of the internal gear so as to be symmetrical with respect to the assembly hole (32);

A coupling part 41 having a shaft coupling hole 41a is fitted in the burring part of the internal gear, and a lever socket 40 for rotationally driving the first and second wedges 10 and 20 and the cam 80. ;

a wedge spring 50 installed to support both ends of the first and second wedges 10 and 20;

An external gear 61a having one side engaged with the internal gear 33 of the internal gear is formed, and a shaft hole 62a communicating with the shaft coupling hole of the lever socket is formed in the center, and a pair of wedges and the lever socket and The external gear 60 is eccentrically inserted into the receiving groove of the internal gear to prevent the wedge spring from being separated.

The cam 80 has a function of transmitting the rotational force of the lever socket 40 to the external gear 50 and one side of the first and second wedges 10 and 20 and the burring part 34 of the internal gear. It is in close contact with a function to maintain the locking of the recliner, and the configuration is not limited thereto. That is, it is sufficient if the cam 80 is installed to be positioned between the first and second wedges and the burring portion to maintain the locking of the recliner.

For example, in the cam 80, a cam center hole 81a into which the burring part 34 of the internal gear is inserted is formed, and one side of the cam 80 is in contact with the first and second wedges 10 and 20. The cam body 81 provided with 81b) and the cam protrusion 82 which is formed to protrude on the other side of the cam body 81 where the wedge contact surface 81b is not formed so that one side of the lever socket 40 is in contact. can be configured to include.

The cam body 81 has a wedge contact surface 81b integrally formed on one side, a cam projection 82 integrally formed on the other side, and one side of the wedge contact surface 81b, first and second wedges 10, 20), the first and second wedges 10 and 20 generate frictional force between the cam 80 and the bearing 70 press-fitted to the external gear by contacting each side of the recliner 10, thereby locking the recliner 10. It has a function that allows it to be maintained.

In addition, the cam protrusion 82 is in contact with the first contact protrusion 42a or the second contact protrusion 42b depending on the rotation direction of the one side of the lever socket 10 that is rotated, that is, the lever socket 10, It has a function of transmitting the rotational force of the lever socket to the cam body (33). That is, when the first contact protrusion 42a of the lever socket comes into contact with the other end 12 of the first wedge by the rotational operation of the lever socket, and the first wedge 10 is operated in the rotational direction of the lever socket, the lever The second contact protrusion 42b of the socket comes into contact with the cam protrusion 82 so that the cam 80 is rotated in the rotation direction of the lever socket.

Since the configuration and operation of the cam 80 as described above corresponds to a known technique, a detailed description thereof will be omitted.

As described above, in the present invention, the first and second wedges 10 and 20, the internal gear 30 having the burring part 34, the lever socket 40, the wedge spring 50 and the bearing 70 are A recliner including a press-fitted external gear 60, or,

The first and second wedges 10 and 20, the internal gear 30 having the burring part 34, the cam 80, the lever socket 40, the wedge spring 50 and the bearing 70 are press-fitted. Since it can be applied to all recliners including the external gear 60, the configuration of the recliner is not limited.

9 is an exemplary view showing an assembly process according to the present invention. In the recliner according to the present invention, the first and second wedges, the cam, and the lever socket are sequentially assembled in the receiving groove of the internal gear, and the spring After the position of the wedge spring is supported by the mounting tool, the external gear is eccentrically assembled to the internal gear, and then both ends of the wedge spring are supported in contact with the first and second wedges by the removal of the spring mounting tool, so that the recliner It is designed to be assembled.

That is, according to the present invention, the contact surfaces 11b and 21b of the first and second wedges are symmetrically contacted, and the receiving groove ( 31) a wedge assembly step in which the first and second wedges 10 and 20 are inserted;

After the wedge assembly step, the lever socket installation step in which the lever socket 40 is installed so that the coupling part 41 is fitted to the burring part 34 of the internal gear;

After the lever socket installation step, a tool insertion step in which the spring mounting tool 200 is inserted and installed through the assembly hole 32 of the internal gear so as to be positioned between the corresponding surfaces 11a and 21a of the first and second wedges;

After the tool insertion step, a wedge spring installation step in which both ends 51 and 52 are installed so as to be in contact with and supported by the spring-loaded tool 200 in a state in which the wedge spring 50 is compressed;

After the wedge spring installation step, the external gear 61a is coupled to one side of the internal gear 33 of the internal gear, and the first and second wedges 10 and 20 are inserted into the central groove 63 in which the bearing 70 is press-fitted. an external gear assembling step in which the external gear 60 is eccentrically inserted into the receiving groove 31 of the internal gear to be positioned;

After the external gear assembling step, the spring mounting tool 200 is separated from the assembly hole 32 of the internal gear so that both ends 51 and 52 of the wedge spring are connected to the corresponding surfaces 11a of the first and second wedges by elastic force. Separating the tool supported in contact with 21a);

and a cover installation step in which the cover 90 is installed on the internal gear 30 so that the external gear 60 is supported by the cover 90 .

In addition, the present invention may further include a cam installation step in which the cam 80 is installed on the burring part 34 of the internal gear before the wedge assembly step, and when the cam installation step is further included,

In the wedge assembling step, the first and second wedges ( 10, 20) is inserted.

The wedge assembling step is a step in which the first and second wedges 10 and 20 are installed so that the external gear 60 is eccentrically coupled into the receiving groove 31 of the internal gear. ) after the grease is applied, the contact surfaces ( The first and second wedges 10 and 20 are inserted and installed into the receiving groove 31 so that the 11b and 21b are in contact with or in close contact with each other. The first and second wedges 10 and 20 are inserted into the central groove 63 of the external gear in which the bearing 70 is press-fitted, even if the external gear 60 is assembled after the wedge assembly. This is not only for making the insertion of the two wedges 10 and 20 easy, but also when the spring-loaded tool is removed, both ends 51 and 52 of the wedge spring are the corresponding surfaces 11a and 21a of the first and second wedges. This is to ensure that the positions of the first and second wedges 10 and 20 and the wedge spring 50 are maintained at the same time by being in contact with each other.

The lever socket assembly step is a step in which the first and second wedges 10 and 20 or the first and second wedges 10 and 20 and the lever socket 40 for operating the cam 80 are assembled. After the first and second wedges 10 and 20 or the first and second wedges 10 and 20 and the cam 80 are assembled, the coupling part 41 of the lever socket is inserted into the burring part 34 of the internal gear. The lever socket 40 is installed so as to When the lever socket 40 is assembled to the burring part 34 in this way, the first and second wedges 10 and 20 or the first and second wedges are formed in the receiving groove 34 by the fixing plate 42 of the lever socket. The separation of (10, 20) and the cam 80 is prevented.

The tool insertion step is a step in which a spring-loaded tool is inserted and installed so that the wedge spring can be installed while the first and second wedges 10 and 20 are kept in contact, and through the assembly hole 32 of the internal gear. , a spring mounting tool 200 for supporting both ends 51 and 52 of the wedge spring is inserted into the receiving groove 31 of the internal gear to which the first and second wedges 10 and 20 are assembled. At this time, the spring-loaded tool 200 is linearly moved by a driving means (not shown) such as a cylinder.

In the wedge spring installation step, the both ends 51 and 52 are compressed (shrunk) so that they are close to each other, and then inserted between the corresponding surfaces 11a and 21a of the first and second wedges through the assembly hole 32 of the internal gear. It is installed through the insertion hole 42c of the lever socket so that both ends 51 and 52 are supported in contact with the spring mounting tool 200 . That is, in the present invention, both ends 51 and 52 of the wedge spring are supported in contact with the spring mounting tool 200 rather than the corresponding surfaces 11a and 21a of the first and second wedges, so that the first and second wedges ( 10 and 20), even when the wedge spring 50 is assembled, the contact surfaces 11b and 21b are continuously maintained in contact with or in close contact with each other.

In the step of assembling the external gear, into the receiving groove 31 of the internal gear, the first and second wedges 10 and 20, the lever socket 40, the wedge spring 50 or the cam 80, the first After the 2 wedges 10 and 20, the lever socket 40, and the wedge spring 50 are inserted and installed, the first and second wedges 10 and 20 are inserted into the central groove 63 in which the bearing 70 is press-fitted. In addition, the external gear 60 is eccentrically inserted into the receiving groove 31 of the internal gear so that the external gear 61a is coupled to one side of the internal gear 33 of the internal gear.

In the present invention, both ends 51 and 52 of the wedge spring 50 are supported by the spring mounting tool 200 in a compressed (contracted) state, and the first and second wedges 10 and 20 are contact surfaces 11b and 21b. ) are arranged in contact or close contact with each other, so when the external gear 60 is eccentrically assembled into the receiving groove 31 of the internal gear, the central groove 63 of the external gear in which the bearing 70 is press-fitted. ) inside the first and second wedges (10, 20), lever socket (40), wedge spring (50) or cam (80), first and second wedges (10, 20), lever socket (40), wedge spring As the 50 is stably inserted, the external gear 60 is eccentrically assembled into the receiving groove 31 of the internal gear.

That is, in the recliner, the eccentric assembly of the internal gear 30 and the external gear 60 and the assembly positions of the first and second wedges 10 and 20 are, Locking), the present invention provides for assembling the first and second wedges 10 and 20, the lever socket 40, the wedge spring 50, the cam 80, etc. to the external gear 60. Even in a state in which a large size installation hole is not formed, that is, in a state in which one side of the external gear 60 is blocked by a separation prevention unit having only a shaft hole for coupling with the drive shaft (rotation shaft), the first and second As the components such as the wedges 10 and 20, the lever socket 40, the wedge spring 50, and the cam 80 are assembled, the internal gear 30 and the external gear 60 are eccentrically assembled. made to be possible.

In the tool separation step, the spring mounting tool 200 is moved to the outside of the assembly hole 32 of the internal gear 30 . When the spring mounting tool 200 is moved in this way, the support for both ends 51 and 52 of the wedge spring is released, and the wedge spring that has been compressed (contracted) is elastically expanded according to the release of the support so that the first and second wedges are moved. Both ends 51 and 52 are supported in contact with the corresponding surfaces 11a and 21a, respectively, and the first and second wedges 10 and 20 are moved away from each other by the elastic force of the wedge spring 50, so that the external gear The first and second wedges 10 and 20 are moved and assembled to generate frictional force between the bearing 70 of the internal gear and the burring part 34 of the internal gear or between the bearing 70 and the cam 80 of the external gear. (wedge lock). At this time, the spring-loaded tool is moved by a driving means (not shown) such as a cylinder.

In the cover assembly step, the cover 90 is assembled/welded to the internal gear 30 so that the external gear 60 is not separated from the internal gear 30 . Since the configuration in which the external gear 60 is rotatably supported by the cover 90 is a known technique widely used in the recliner, a detailed description thereof will be omitted.

In addition, the cover assembly step may be performed after the tool separation step or before the tool separation step, that is, after the external gear assembly step and before the tool separation step.

The present invention is not limited to the specific preferred embodiments described above, and without departing from the gist of the present invention as claimed in the claims, anyone with ordinary skill in the art to which the invention pertains can make various modifications. Of course, such modifications are intended to be within the scope of the claims.

In addition, since the terms described in the present invention are for distinguishing one component from other components and helping the understanding of the present invention, the components of the present invention are not limited by the described terms.

(10): 1st wedge (11): one end
(11a): mating surface (11b): contact surface
(12): the other end (20): the second wedge
(21): the other end (21a): the corresponding side
(21b): contact surface (22): other end
(30): internal gear (31): receiving groove
(32): assembly hole (33): internal gear
(34): burring part (40): lever socket
(41): coupling part (41a): shaft coupling hole
(42): fixing plate (42a): first contact protrusion
(42b): second contact protrusion (42c): insertion hole
(50): Wedge spring (51,52): Both ends
(60): external gear (61): ring part
(61a): external gear (62): escape prevention part
(62a): shaft hole (63): central groove
(70): Bearing (80): Cam
(81): cam body (81a): cam center hole
(81b): wedge contact surface (82): cam projection
(90): Cover (100): Recliner
(200): spring-loaded tool

Claims (6)

As the first and second wedges 10 and 20 are rotated by the rotational driving of the lever socket 40, the external gear 60 coupled to the internal gear 30 is eccentrically rotated to adjust the angle of the seatback. In the recliner 100;
The recliner 100,
An internal gear having a burring part 34 protruding from the center, an internal gear 33 formed along the inner circumferential surface of the accommodating groove 31, and having an assembly hole 32 penetrated so as to communicate with the accommodating groove 31 ( 30);
first and second wedges 10 and 20 inserted into the receiving groove 31 of the internal gear so as to be symmetrical about the assembly hole 32;
a lever socket 40 into which the coupling part 41 provided with the shaft coupling hole 41a is fitted in the burring part 34 of the internal gear;
a wedge spring 50 installed to support both ends of the first and second wedges 10 and 20;
An external gear 61a having one side engaged with the internal gear 33 of the internal gear is provided, and a shaft hole 62a communicating with the shaft coupling hole 41a of the lever socket is formed in the center, and the internal gear is accommodated. Including; the external gear (60) eccentrically inserted into the groove (31)
The recliner device with improved assembly, characterized in that it is configured to prevent the separation of the first and second wedges (10, 20), the lever socket (40) and the wedge spring (50) by the external gear (60).
The method of claim 1 ;
The external gear 60 is
A ring portion 61 in which the external gear 61a is continuously formed, and
A separation prevention part 62 integrally formed with the ring part 61 on one side of the ring part 61 and having a shaft hole 62a communicating with the shaft coupling hole 41a of the lever socket,
The recliner with improved assembly, characterized in that it includes a central groove 63 that is formed such that one side is opened by the step connection between the ring part 61 and the separation prevention part 62 and the bearing 70 is press-fitted to the inner circumferential surface. Device.
The method of claim 1 ;
A recliner device with improved assembly, characterized in that a cam (80) is further installed between the first and second wedges (10, 20) and the burring portion (34) of the internal gear.
The contact surfaces 11b and 21b of the first and second wedges are symmetrically brought into contact with each other, and are first inserted into the receiving groove 31 of the internal gear so as to be positioned between the assembly hole 32 of the internal gear and the burring part 34 . , A wedge assembly step into which the two wedges 10 and 20 are inserted;
After the wedge assembly step, the lever socket installation step in which the lever socket 40 is installed so that the coupling part 41 is fitted to the burring part 34 of the internal gear;
After the lever socket installation step, a tool insertion step in which the spring mounting tool 200 is inserted and installed through the assembly hole 32 of the internal gear so as to be positioned between the corresponding surfaces 11a and 21a of the first and second wedges;
After the tool insertion step, a wedge spring installation step in which both ends 51 and 52 are installed to be in contact with and supported by the spring-loaded tool 200 in a state in which the wedge spring 50 is compressed;
After the wedge spring installation step, the external gear 61a is coupled to one side of the internal gear 33 of the internal gear, and the first and second wedges 10 and 20 are inserted into the central groove 63 in which the bearing 70 is press-fitted. an external gear assembling step in which the external gear 60 is eccentrically inserted into the receiving groove 31 of the internal gear to be positioned;
After the external gear assembling step, the spring mounting tool 200 is separated from the assembly hole 32 of the internal gear so that both ends 51 and 52 of the wedge spring are connected to the corresponding surfaces 11a of the first and second wedges by elastic force. Separating the tool supported in contact with 21a);
A method of assembling a recliner device with improved assembly, comprising: a cover installation step in which the cover 90 is installed on the internal gear 30 so that the external gear 60 is supported by the cover 90 .
5. The method of claim 4;
The internal gear 30 is formed through a receiving groove 31 in which the first and second wedges 10 and 20, the lever socket 40 and the wedge spring 50 are assembled, and the receiving groove 31 to communicate with each other. It includes an assembly hole 32, an internal gear 33 formed on the inner circumferential surface of the receiving groove 31 to which one side of the external gear of the external gear is coupled, and a burring part 34 protruding from the center of the receiving groove,
The external gear 60 is integrally formed with a ring part 61 in which external gears 61a are continuously formed, and a ring part 61 on one side of the ring part 61, and communicates with the shaft coupling hole 41a of the lever socket. A central groove ( 63) assembling improved recliner device assembly method comprising the.
5. The method of claim 4;
Before the wedge assembling step, it may further include a cam installation step in which the cam 80 is installed on the burring part 34 of the internal gear,
In the wedge assembling step, the first and second wedges ( 10, 20) assembling improved recliner device assembly method, characterized in that the inserted.

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