JP3327248B2 - Slide lock device for rotation / slide interlocking mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a rotating seat for a vehicle suitable for occupants of, for example, the elderly and the physically handicapped, and performs a rotating operation of a turntable supporting the seat and a sliding operation in a vehicle longitudinal direction. The present invention relates to a slide lock mechanism of a rotation / slide interlocking mechanism that interlocks with.

[0002]

2. Description of the Related Art Various types of rotary seats have been improved to make it easier for passengers to get on and off. In many cases, the rotating seat for the vehicle is configured to combine the two operations of horizontal rotation of the turntable that supports the seat and sliding operation of the turntable that supports the turntable in the front-rear direction of the vehicle. Easily get on and off. As a means for interlocking the above two operations, a rack and pinion type rotation / slide interlocking mechanism using a rack and a pinion gear (sector gear) meshing via an intermediate gear is known. In this rotating / sliding interlocking mechanism, during a dismounting operation from a seated state, the pinion gear does not mesh with the intermediate gear for a certain section at the beginning of operation in order to avoid the foot of the occupant from interfering with the body (pillar). In this manner, a single rotation area in which the rotating seat performs only a rotating operation is set. Further, a slide lock device is provided which is set such that a lock pin for holding a position is hooked from the rotation support base to the fixed base so that the meshing position of the pinion gear and the intermediate gear does not shift within the single rotation region. ing. The slide lock device is configured to lock and unlock by operating a lock pin inserted into and removed from a lock hole of a fixed base by a cam attached to a lower surface of a turntable that supports a seat.

[0003]

However, in the case of the slide lock device of the above-mentioned type, in which the locking and unlocking movements are required in a very small dimensional area at the end of the single rotation area, the lock hole is not provided. There is a problem in that it is extremely difficult to adjust the stroke of the lock pin and the reliability of the lock is poor. In addition, since the pin is inserted and removed during rotation, the hole diameter must be set to be somewhat larger than the pin diameter, so that the relative position between the intermediate gear and the pinion gear in the sliding direction tends to vary, and As a result, there is a possibility that a tooth skipping phenomenon or tooth interference may occur. In general, in the seated state, the rotation of the turntable supporting the seat is restricted by the rotation lock device with respect to the turntable. Then, the rotation lock by the rotation lock device is released at the time of the operation for getting off, but at this time, the center of the turntable may be shifted in the vehicle front-rear direction due to a manufacturing error or the like, and this also causes Regarding the meshing between the intermediate gear and the pinion gear when shifting to the interlocking region, there is a possibility that a tooth skipping phenomenon or tooth interference may occur. As described above, the conventional slide lock device has a problem in that the pinion gear rotates in the free state with respect to the intermediate gear in the single rotation region of the turntable, causing problems such as tooth skipping. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to prevent the occurrence of tooth jumping or the like when shifting from a single rotation area to an interlocking area. An object of the present invention is to provide a highly reliable slide lock device of a rotation / slide interlocking mechanism capable of smoothly shifting to an interlocking region.

[0005]

In order to achieve the above object, a slide lock device of a rotation / slide interlocking mechanism according to the present invention has a structure as described in each claim of the claims. is there. According to the first aspect of the present invention, when the turntable is operated, the pinion gear is rotated in a state where the guide roller is engaged with the cam surface of the regulating cam up to the end of the single rotation area of the turntable. Accordingly, in the single rotation region, the intermediate gear and the pinion gear are always maintained in a fixed positional relationship by the regulating cam and the guide roller, and the pinion gear is accurately engaged with the intermediate gear immediately after the single rotation region. It is possible to make it. That is, the movement of the pinion gear with respect to the intermediate gear in a direction other than the specific direction determined by the cam surface is restricted, and therefore, when shifting from the single rotation region to the interlocking region, the tooth jumping phenomenon and the tooth tip It is possible to provide a highly reliable slide lock device in which the problem such as interference does not occur and the transition from the single rotation region to the interlocking region can be smoothly performed.

According to the second aspect of the present invention, when the turntable is operated, the cam surface of the cam groove engages with the guide roller up to the end of the single rotation area of the turntable. Since the guide roller is guided by the outer peripheral groove wall facing the cam surface, the rotation of the intermediate gear can be restricted in both directions. For this reason, the intermediate gear and the pinion gear are always maintained in a fixed positional relationship by the regulating cam and the guide roller, so that the pinion gear can accurately mesh with the intermediate gear immediately after the lapse of the single rotation region. Becomes

According to the third aspect of the present invention, by applying the present invention to a rotating seat for a vehicle, a transition from a single rotating area to an interlocking area can be smoothly performed, so that the operability of getting on and off the rotating seat is improved. it can.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. First, the first embodiment is shown in FIGS.
This will be described with reference to FIG. In the drawings, the arrow “front” indicates the front of the vehicle, and the arrow “outside” indicates the door opening D side. The slide lock device of the rotation / slide interlocking mechanism according to the present embodiment is a vehicle rotation seat (hereinafter, referred to as a vehicle rotation seat).
This is applied to a rotating seat). FIG. 1 is an explanatory view exemplifying a case where the revolving seat 1 is set as a passenger seat on the left side of a driver's seat, and a door opening D is provided on the left side of the revolving seat 1. Accordingly, the rotating seat 1 is moved to the door opening D by sliding the seat 1 from the front seating position toward the front of the vehicle toward the front of the vehicle and rotating it to the left (counterclockwise as viewed in plan) by approximately 90 °. .

The rotating seat 1 for a vehicle according to the present embodiment comprises:
As shown in FIG. 3, a turntable 3 for supporting a seat,
A rotation support table 10 that rotatably supports the rotation table 3,
A longitudinal support 30 as a fixed base for supporting the rotary support 10 so as to be slidable in the longitudinal direction of the vehicle. In the present embodiment, as shown in FIG. 2, a case is shown in which a lift-up mechanism 5 that supports a wheelchair 4 in a detachable manner (connectable and detachable) is provided on the turntable 3. The lift-up mechanism 5 is mainly composed of a pair of left and right four-bar linkages 6 and is moved to the door opening D (hereinafter, this position is also referred to as the getting on / off position).
Thus, the four-link mechanism 6 is configured to be able to move up and down in a substantially arcuate manner between the room and the outside as viewed from the front of the vehicle by the swinging up and down operation of the four-bar link mechanism 6 so that the wheelchair 4 can enter and exit through the door opening D.

FIG. 3 is a perspective view showing the rotary support 10 and the front-back support 30. As shown, the rotary support 1
Reference numeral 0 denotes a pair of left and right bases 12 arranged at predetermined intervals in the front-rear direction and extending in the vehicle width direction so as to join both ends of the bases 12 to each other. The rotating plate 1 includes a plurality of moving-side holding members 11 attached to the upper surface of both rear and intermediate bases 12.
3 are provided. The turntable 13 has an outer ring 13a and an inner ring 1
3b, the two wheels 13a and 13b are configured so as to be able to smoothly rotate relative to each other by a number of steel balls (not shown) interposed therebetween. In the present embodiment, the inner ring 13b of the turntable 13 is fixed to the base 12, the turntable 3 is fixed on the outer ring 13a, and the lift-up mechanism 5 is mounted on the turntable 3. . Thus, the turntable 3 can be rotated horizontally with respect to the turntable 10.

On the other hand, the back-and-forth support 30 has a base 31 formed of a substantially rectangular plate that is long in the front and rear direction, and the base 31 is fixed horizontally on the floor of the vehicle. On the upper surface of both ends in the vehicle width direction of the base 31, two fixed left and right fixed side holding members 32 long in the front and rear direction for guiding the movable side holding member 11 of the rotary support base 10 so as to be slidable in the front and rear direction are parallel. It is provided in. The fixed-side holding member 32 and the movable-side holding member 11 are arranged so that one side faces each other, and V-grooves 11 extending in the longitudinal direction are provided on both sides thereof, as shown in FIG.
a, 32a are formed, and a number of steel balls 33 are sandwiched between the V-shaped grooves 11a, 32a, thereby forming a pair of right and left linear guide mechanisms 34.
Thus, the turntable 3 can be slid in the vehicle front-rear direction via the turntable 10.

Next, a rotation / slide interlocking mechanism 20 for mechanically interlocking the rotation operation and the slide operation of the turntable 3 will be described with reference to FIGS. In FIG. 4, the entire rotating part including the wheelchair 4 supported via the lift-up mechanism 5 is schematically illustrated as the turntable 3. The rotation / slide interlocking mechanism 20 is, as shown in the figure,
It is composed of a rack 21 extending linearly in the vehicle front-rear direction, an intermediate gear 22, and a pinion gear (sector gear) 24. The rack 21 is attached to a side surface of the fixed side holding member 32 on the indoor side. The intermediate gear 22 is rotatably mounted on the upper surface of the movable holding member 11 on the indoor side via a support plate 23, and is disposed so as to mesh with the rack 21. The mesh between the intermediate gear 22 and the rack 21 is
The position and length of the rack 21 are set so that the wheelchair 4 supported on the turntable 3 via the lift-up mechanism 5 is maintained in the entire range of movement in the front-rear direction.

On the other hand, the pinion gear 24 is fixed to the lower surface of the turntable 3. The pinion gear 24 is formed in an arc shape in a range of approximately 90 ° centering on the rotation center of the turntable 3, and has a fixed angular range on the initial side of meshing (the end side in the counterclockwise direction, the same applies hereinafter). About 20 ° in the form of
Has no meshing teeth. For this reason, when the turntable 3 is started to rotate from its seated position (the position facing the front of the vehicle, the position shown by the solid line in FIG. 4, the same applies hereinafter) to the door opening D side (counterclockwise direction), it is initially about 20 °. In the range, the pinion gear 24 and the intermediate gear 22 do not mesh with each other, so that the turntable 3 only rotates and does not slide forward of the vehicle (hereinafter, this range is referred to as a single rotation area).

When the turntable 3 is further rotated toward the door opening D, the pinion gear 24 meshes with the intermediate gear 22, so that the intermediate gear 22 rotates in conjunction with the rotation of the turntable 3. Since the intermediate gear 22 meshes with the rack 21, the intermediate gear 22 rotates and moves forward of the vehicle while rotating. As a result, the rotation support base 10 slides forward of the vehicle, and thus the turntable 3 rotates toward the door opening D side. Slide forward of the vehicle.
That is, the rotation operation and the slide operation of the turntable 3 are linked,
This interlocking area continues to the getting on / off position.

Next, the slide lock device 40 will be described with reference to FIGS. This slide lock device 40
Locks the sliding operation of the rotation support table 10 in the single rotation area of the rotation table 3, releases the lock when shifting from the single rotation area to the interlocking area, and disengages the pinion gear 24 with the intermediate gear 22. It is set for the purpose of making it perform properly. Slide lock device 40
Are guide rollers 4 provided on the circumference of the intermediate gear 22.
1 and a regulating cam 43 fixed to the pinion gear 24, and a guide roller 41 is rotatably engaged with a cam surface 44 provided on the regulating cam 43. The guide roller 41 is rotatably mounted on a vertical shaft 42 erected on the outermost upper surface on the circumference of the intermediate gear 22, while the regulating cam 43 is attached to a fixing bolt 46 via a spacer 45 on the upper surface of the pinion gear 24. It is fixed. The mounting hole 43a of the regulating cam 43 is formed as an elongated hole, and can be adjusted so that the guide roller 41 rolls smoothly with respect to the cam groove 44.

As shown in FIGS. 6 and 7, the cam surface 44 of the regulating cam 43 is formed by an arc surface centered on the rotation center of the pinion gear 24 (the rotation center of the rotating disk 13). In addition, a guide surface 44a is provided which is a bent surface that is continuous with the cam surface 44 so as to be bent inward. Thus, the rolling surface of the guide roller 41 of the regulating cam 43 is formed in a substantially U-shape as a whole.
That is, the cam surface 44 engages with the guide roller 41 in the single rotation area during the rotation operation of the rotary table 3 to restrict the rotation of the intermediate gear 22, and at the time of shifting from the single rotation area to the interlocking area, the guide surface is guided. The length of the roller 41 is set so as to be disengaged, and at the time of disengagement, the guide surface 44a guides the guide roller so that the intermediate gear 22 and the pinion gear 24 can smoothly mesh with each other. 41 is provided. In addition,
The guide surface 44a for guiding the guide roller 41 is created based on the rotation path of the guide roller 41 and the rotation path of the pinion gear 24.

Therefore, in the single rotation area of the turntable 3 from the state of FIG. 6 to the state of FIG.
The cam surface 44 formed concentrically with the center of rotation of the guide roller 41 engages with the guide roller 41 and moves. Therefore, during the movement, the clockwise rotation of the intermediate gear 22 (the rotation of the turntable 3 in the forward sliding direction) is restricted (slid lock), and the relative movement between the intermediate gear 22 and the pinion gear 24 is restricted. A proper positional relationship can be appropriately maintained. On the other hand, when shifting from the single rotation region to the interlocking region, the guide roller 45 is disengaged from the cam surface 44 when the pinion gear 24 starts to mesh with the intermediate gear 22 (slide lock is released). Guided by 44a. As a result, the meshing between the intermediate gear 22 and the pinion gear 24 can be performed smoothly.

Next, the operation of the vehicular rotary seat 1 according to the present embodiment configured as described above will be described with reference to FIG. In the following description, a rotating part represented by a virtual line in the drawing is referred to as a turntable 3. In the figure, the rear position of the vehicle front-back direction movement range is denoted by reference symbol L0, the front position is denoted by reference symbol L1, and the vehicle width direction movement is based on the rotation center of the turntable 3 (the rotation center of the turntable 13). Code W indicates the indoor position of the range
0, and the outdoor position is indicated by reference numeral W1.

FIG. 9A shows a state where the turntable 3 is located at a seating position. In this seated position, after the operator unlocks the rotation lock mechanism (not shown) of the turntable 3, the seat drive device (not shown) is activated, and the turntable 3 is turned on.
When a rotational force is applied to the rotary table 3, the turntable 3 starts rotating toward the door opening D as described above. FIG.
(B) shows a state rotated by about 20 ° in the same direction, that is, a single rotation area. During this time, since the pinion gear 24 and the intermediate gear 22 do not mesh with each other, the turntable 3 performs only a rotating operation. At this stage, since the turntable 3 has reached the rear of the door opening D, that is, a position just before the rear pillar P interferes with the seat cushion of the wheelchair, if it is further rotated as it is, it will interfere with the pillar P and rotate the rotary seat. 1 cannot be rotated to the sideways position towards the door opening D.

However, when the pinion gear 24 is rotated by about 20 °, the pinion gear 24 starts to mesh with the intermediate gear 22. Therefore, when the turntable 3 is further rotated thereafter, the turntable 3 is moved forward by the interlocking action of the pinion gear 24 and the intermediate gear 22 and the interlocking action of the intermediate gear 22 and the rack 21 in conjunction with this rotation operation. Moving. In this way, the turntable 3 slides forward while rotating in the remaining interlocking region of about 70 °, so that the turntable 3 assumes a lateral position facing the door opening D as shown in FIG.
Leads to 1. That is, it is the getting on / off position. In this way, by rotating the turntable 3 forward while rotating, the occupant's foot or footrest does not interfere with the front end of the door opening D during the rotation. In this regard, there has been a problem in that, once the seat body is once moved to the front position and then rotated, the occupant's feet interfere with the front end of the door opening (body) as in the prior art. Such a problem can be avoided by moving forward while rotating as described above.

When the turntable 3 reaches the getting-on / off position, this is detected by a getting-on / off position detector (not shown) such as a limit switch provided on the front-rear direction support base 30, and a detection signal thereof is provided. , The drive of the turntable 3 is stopped. Then, by operating a driving device (not shown) of the swing swing-type lift-up mechanism 5 at the getting on / off position, the wheelchair 4 is moved from the indoor position W0 by the lift-up mechanism 5 as shown in FIG. It can move to the outdoor position W1 in an arc shape and get off.

In order to return the wheelchair 4 moved to the outdoor position W1 to the original sitting position as described above, first, the lift-up mechanism 5 is operated in the reverse direction to move the wheelchair 4 to the indoor position W0. Return to After that, the seat drive device is driven to apply a rotational force to the turntable 3 in a direction opposite to that at the time of getting off, thereby rotating the turntable 3 toward the indoor side.
At this time, since the pinion gear 24 and the intermediate gear 22 and the intermediate gear 22 and the rack 21 are held in mesh with each other, the turntable 3 is rotated from the front position L1 to the rear position L0 while rotating in the cabin opposite to the above. Slide toward.

At the stage where the turntable 3 is rotated about 70 ° from the getting on / off position to the indoor side, the turntable 3 is returned to the rear position L0 and reaches the position shown in FIG. 9 (B). Thereafter, the turntable 3 is further rotated by about 20 °, so that it can be returned to the seating position shown in FIG. In the rotation range of 20 °, the pinion gear 24 and the intermediate gear 22 are disengaged from each other, and the turntable 3 performs only a rotation operation and does not slide in the front-rear direction. When the turntable 3 starts moving from the getting on / off position and reaches the seating position, this is detected by, for example, a seating position detector (not shown) such as a limit switch. Is stopped. Thereafter, by locking the rotation of the turntable 3 by the rotation lock mechanism, the seat body 2 can be fixed at the seating position.

Now, according to the present embodiment, the rotating seat 1
Is moved from the seated state to the getting on / off position, the cam surface 44 is shifted from the single rotation area to the interlocking area.
Thus, the mutual movement between the pinion gear 24 and the intermediate gear 22 can be regulated, and a fixed positional relationship can be maintained.
Therefore, when shifting from the single rotation area to the interlocking area,
Regarding the engagement between the pinion gear 24 and the intermediate gear 22,
Good meshing can be achieved by preventing problems such as tooth skipping and tooth tip interference, thereby making it possible to smoothly shift the rotating seat 1 from the single rotation area to the interlocking area. Further, in the present embodiment, the guide roller 41 is guided by the bent surface 44b in such a manner as not to release the regulation immediately at the time when the meshing is started but to back up the meshing thereafter.
The smooth engagement between the pinion gear 24 and the intermediate gear 22 can be realized.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. The second embodiment is a modification of the slide lock device 40,
The restriction cam 43 has a cam groove 51.
As shown in FIGS. 10 and 11, the cam groove 51 of the regulating cam 43 has an arc portion 51 a centered on the rotation center of the pinion gear 24 (the rotation center of the turntable 13) and a bend with respect to the arc portion 51 a. Bent portion 51b continuous with
Are formed in a substantially V-shape as a whole.
During the rotation operation of the rotary table 3, the cam groove 51 engages with the guide roller 41 in the single rotation area to restrict the rotation of the intermediate gear 22 in the single rotation area, and shifts from the single rotation area to the interlocking area. At this time, the guide roller 41 can escape from the arc portion 51a in response to the engagement between the intermediate gear 22 and the pinion gear 24, and at the time of escape, the engagement between the intermediate gear 22 and the pinion gear 24 can be performed smoothly. The guide roller 41 is formed in a shape to be guided by the bent portion 51b. That is, the inner peripheral groove wall of the circular arc portion 51a in the cam groove 51 functions as a cam surface 52 that engages with the guide roller 41 to restrict the rotation of the intermediate gear 22, and the outer peripheral groove wall facing the cam surface 52 serves as a guide. It is configured to function as a guide surface 53 for guiding the movement of the roller 41. A guide surface 54 for guiding escape of the guide roller 41 is provided on the inner peripheral side of the bent portion 51b of the cam groove 51, as in the first embodiment.
It is created based on the rotation locus of the guide roller 41 and the rotation locus of the pinion gear 24.

The regulating cam 43 is fixed to the upper surface of the pinion gear 24 by a fixing bolt 46 via a spacer 45, and the tip 43b of the outer peripheral groove wall of the cam groove 51 is fixed to The strength is secured by being fixed to the lower surface by fixing bolts 47 (FIG. 12).
reference). The mounting hole 43a of the regulating cam 41 is formed as an elongated hole, and can be adjusted so that the guide roller 41 rolls smoothly with respect to the cam groove 51.

The slide lock device 40 according to the second embodiment is configured as described above, and the portions of the slide lock device 40 other than those described above and the portions other than the slide lock device 40 are described above. The configuration and operation are the same as those of the first embodiment.

Therefore, according to the second embodiment, FIG.
In the single rotation area of the turntable 3 from the state of 0 to the state of FIG. 11, the cam surface 52 of the arc portion 51a of the cam groove 51 formed concentrically with the rotation center of the turntable 3 is a guide. The cam surface 52 moves while engaging with the roller 41.
The guide roller 41 is guided by a guide surface 53 facing the guide roller 41. For this reason, during the movement, the intermediate gear 2
2 is restricted in rotation in both directions (slide lock), so that the relative positional relationship between the intermediate gear 22 and the pinion gear 24 can be properly maintained. For this reason, regarding the meshing between the pinion gear 24 and the intermediate gear 22 at the time of shifting from the single rotation region to the interlocking region, it is possible to prevent problems such as tooth skipping and interference between the tooth tips and achieve good meshing. This makes it possible to smoothly shift the rotating seat 1 from the single rotation area to the interlocking area. In the case of shifting from the single rotation area to the interlocking area, the guide roller 45 is disengaged from the cam surface 52 of the arc portion 51a of the cam groove 51 when the pinion gear 24 starts to mesh with the intermediate gear 22 (slide lock is released). At the same time) and guided by the guide surface 54 of the bent portion 51b. As a result, the meshing between the intermediate gear 22 and the pinion gear 24 is backed up, and a smooth meshing is realized.

In the illustrated embodiment, the guide roller 41 is provided on the circumference of the teeth of the intermediate gear 22, as shown in FIGS. This is because the position of the guide roller 41 is farthest from the center of the intermediate gear 22,
That is, it is easier to obtain accuracy when the rotation radius of the guide roller 41 is maximized. However, since it can be satisfied even if the rotation radius of the guide roller 41 is set to be small, it is not particularly limited to the maximum. In order to maximize the rotation radius of the guide roller 41, in the embodiment, a vertical shaft 42 for attaching the guide roller 41 to the intermediate gear 22 is used.
Are provided to change the shape of the teeth. Therefore, as shown in FIGS. 6 and 10, a part of the rack 21 and a part of the pinion gear 24 each have one missing tooth portion 21 a,
24a, and the missing tooth portions 21a and 24a are provided.
Since a is only one tooth, there is no problem in actual gear engagement.

Further, in the second embodiment, from the viewpoint of securing the strength, the distal end portion 43b of the portion forming the outer peripheral side groove wall forming the cam groove 51 of the regulating cam 43 is fixed by the bolt 47. Is not always necessary and may be omitted. In addition, the first and second
In the embodiment, the cam surface 4 formed around the rotation center of the pinion gear 24 (the rotation center of the turntable 13)
Although the guide surface 44a that bends continuously is provided at 4, 51, this does not prevent implementation in a form in which the guide surface 44a is omitted. Further, in the present embodiment, the case where the lift-up mechanism 5 is provided with the detachable wheelchair 4 as the vehicle rotating seat 1 has been described, but the present invention may be applied to a type having a fixed-type seat. No problem.

[0031]

As described in detail above, according to the present invention,
In the rotation / slide interlocking mechanism, the positional relationship between the pinion gear and the intermediate gear can be kept constant until the turntable shifts from the single rotation area to the interlocking area. Appropriate meshing between the gear and the pinion gear can be obtained, and the transition operation from the single rotation region to the interlocking region can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention, and is a plan view showing an arrangement of a rotating seat for a vehicle in a room.

FIG. 2 is a perspective view showing a lift-up mechanism and a wheelchair in a rotating seat.

FIG. 3 is a perspective view showing a rotation support and a front-back support, and a rotation / slide interlocking mechanism;

FIG. 4 is a plan view showing a rotating / sliding interlocking mechanism of the rotating seat.

FIG. 5 is a perspective view showing a rotation / slide interlocking mechanism and a slide lock device.

FIG. 6 is a plan view of the slide lock device, showing a seated state;

FIG. 7 is a plan view of the slide lock device, showing a transition from a single rotation area to an interlocking area.

8 is a view as viewed in the direction of the arrow A in FIG. 6;

FIG. 9 is a plan view showing the operation of the vehicle rotating seat,
(A) shows a seated state, (B) shows a state rotated about 20 ° to the door opening side, (C) shows a sideways state moved to the getting on / off position, and (D) swings out of the room. It shows the state that was done.

FIG. 10 is a plan view of a slide lock device according to a second embodiment of the present invention, showing a state in which the slide lock device is seated.

FIG. 11 is a plan view of the slide lock device,
This shows a transition from the single rotation area to the interlocking area.

12 is a view as viewed in the direction of arrow B in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rotating seat for vehicles 3 ... Rotating table 10 ... Rotating support table 20 ... Interlocking mechanism for rotation and sliding 21 ... Rack 22 ... Intermediate gear 24 ... Pinion gear 30 ... Front and rear direction supporting table 40 ... Slide lock device 41 ... Guide roller 42 ... Vertical Shaft 43: regulating cam 44: cam groove

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-10-329591 (JP, A) JP-A-3-71932 (JP, U) JP-A-7-33734 (JP, U) JP-A-6-32934 895 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60N 2/00-2/72 A61G 3/00 501

Claims (3)

(57) [Claims] 1. A fixed base having a linearly extending rack, a rotary support having an intermediate gear slidably mounted on the fixed base and always meshing with the rack, and rotatable on the rotary support. A rotating table having a pinion gear attached and capable of meshing with the intermediate gear, wherein when a rotating force is externally applied to the rotating table, after a lapse of a single rotation area in a certain section from the beginning of rotation, the pinion gear is rotated by an intermediate gear. A slide lock device of a rotation / slide interlocking mechanism in which the rotation operation and the slide operation of the turntable are interlocked by meshing with each other, wherein the guide roller is supported by a vertical shaft erected on the circumference of the intermediate gear, A regulating cam having a cam surface engaging with the guide roller is fixed to the pinion gear, and the cam surface is In the independent rotation region of the turntable, it engages with the guide roller to regulate the rotation of the intermediate gear, and engages the guide roller in response to the engagement of the pinion gear with the intermediate gear after the passage of the individual rotation region. The slide lock device of the rotation / slide interlocking mechanism which is formed so as to be released. 2. The slide lock device for a rotation / slide interlocking mechanism according to claim 1, wherein the regulating cam has a cam groove, and an inner peripheral wall of the cam groove engages with the guide roller. A slide lock device of a rotation / slide interlocking mechanism configured to function as a surface. 3. The slide lock device according to claim 1, wherein the slide lock device is applied to a vehicle seat.