JP2000127893A - Child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve handiness of a child seat by making a presser belt for a child manually lockable in specified length to an emergency locking type retractor for a child seat. SOLUTION: A retractor 1 is composed of an emergency locking part A, a manual locking part B and an operating part. The manual locking part B is operated by the operating part and locked to a gear 4 using a locking claw 5 provided for emergency lock, to make a drum wound with a belt 3, lockable to be impossible for rotation. A parent can therefore fix a child manually to a child seat with the belt 3 of desired length when necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Detailed description of the invention]

[0002]

2. Description of the Related Art When an infant is placed on an automobile, a child seat is used to ensure the safety of the infant. Although there are various configurations of the child seat, an example of a conventional child seat will be described with reference to FIGS. 44 and 45. The illustrated child seat 101 includes a seat portion 102 in which a child's seat and a backrest are integrated, and a base portion 104 fixed to a vehicle seat by a belt 103. In the center of the front of the seat 102, a stomach pad 105 is provided.
The belt 105 is provided with belts 106a, 106b pulled out from the rear side of the seat 102 and seat belts 106c, 106 fixed to the child seat.
and d are detachably fixed by detachable fittings 106e and 106f, respectively. The belts 106a and 106b are fixed to one end of a plate-shaped belt adjustment fitting 110 on the back side of the seat portion 102, and are pulled out from a retractor (1 in FIG. 1 described later) at the other end of the belt adjustment fitting 110. The length adjustment belt 311 is fixed.
The retractor is provided below the seat 102, and a length adjustment belt 311 is pulled out from a drawer port 312.

When the child seat 101 is used, the base 104 is fixed to a vehicle seat by a vehicle seat belt 103 as shown in FIG.
Let the infant sit on 2. At this time, the head of the infant is located between the belts 106a, 106b, and the belts 106a, 1
06b is fixed to the belly pad 105 so as to press the shoulder. Then, the stomach pad 105 comes to cover the infant from the abdomen to the chest, and both feet are put forward from both sides of the stomach pad.

When the vehicle is running normally, the belt 106
a and 106b are adapted to be pulled out or pulled back following the movement of the infant while applying a slight tension to the infant, so that the infant moves and the belt 1 is moved.
06a and 106b are pulled, the belts 106a and 10
6b is pulled out of the child seat 101, and when the belts 106a and 106b are loosened, it is automatically pulled back. In this way, the infant sits loosely restrained by the child seat 101.

[0005] On the other hand, when a sudden brake or the like is applied, the emergency lock type retractor operates urgently. That is, since the infant suddenly leans forward in the forward direction by the sudden braking, the belts 106a and 106b are suddenly pulled, and the length adjustment belt 311 is also suddenly pulled. However, in such a situation, the emergency lock type retractor locks the length adjustment belt 311 so as not to be pulled out by this acceleration action, and performs emergency lock. As a result, the belts 106a,
Withdrawal of the child 106b is restricted,
In addition, the entire body is pressed by the belts 106a and 106b to ensure safety.

[0006]

However, the structure of the child seat 101 has the following problems. For example, a parent drives and places a child in a child seat 1.
When the infant is sitting at 01, the emergency lock type retractor does not operate when the infant moves slowly, so that the belts 106a and 106b may be slipped out and the infant may fall out of the belts 106a and 106b.

The present invention has been made in view of the above circumstances, and has as its object the application of an emergency lock type retractor that allows a parent to arbitrarily lock a belt for holding an infant sitting in a child seat and the retractor. To provide an improved child seat.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a child seat body,
In a child seat including a belt that restrains an infant placed on the child seat body and a retractor that allows the belt to be retracted, a lock member that regulates movement of the belt, and the lock member may be provided as desired. And an operating member for performing a switching operation between a locked state and an unlocked state. According to this configuration, the infant can be fixed by setting the belt to a predetermined length in advance by the operation member, so that usability is improved.

Further, the invention according to claim 2 is characterized in that the locking member regulates the rotation of the drum around which the seat belt is wound. Further, the invention according to claim 3 is characterized in that the lock member holds the belt. According to this configuration, the movement of the belt can be reliably restricted with a simple structure of the lock member.

According to a fourth aspect of the present invention, the belt is provided with a belt adjusting member for adjusting the length of the belt, and the lock member fixes the belt adjusting member. According to this configuration, since the locking is performed using the hard metal fitting to which the belt is connected, a reliable locking operation can be performed.

The invention according to claim 5 is characterized in that the operating member arranged on the child seat main body is out of the reach of an infant placed on the child seat main body. According to this configuration, since the operating member is not placed within the reach of the infant placed on the child seat body, there is no possibility that the infant is unlocked due to mischief or the like, and the safety of the child seat is eliminated. Is improved.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, with reference to the drawings, embodiments of a retractor provided with a manual lock mechanism according to the present invention and a child seat provided with the retractor will be described. FIGS. 1 to 6 show a first embodiment of the retractor, and the child seat shown in FIGS. 44 and 45 will be appropriately used in the description of the embodiment.

The retractor 1 provided with a manual lock mechanism according to the present invention has a configuration in which a manual lock mechanism is further added to a conventional retractor having an emergency lock mechanism.
The retractor 1 according to the first embodiment of the present invention includes an emergency lock section A, a manual lock section B (both shown in FIG. 1), and an operation section C.
(FIG. 2). Among them, the emergency lock portion A and the manual lock portion B are provided in a frame 2 formed in a U-shaped cross section in FIG. C is operated at a position separated from the emergency lock portion A and the manual lock portion B as shown in FIG.

First, the emergency lock section A will be described. In FIG. 1, the emergency lock portion A includes a length adjustment belt 3 and a drum that winds and unwinds the length adjustment belt 3 (however, the length adjustment belt 3 is wound around the drum, and thus cannot be seen in FIG. 1). ), A gear 4 that rotates integrally with the drum, and a locking claw 5 that locks the gear 4. The emergency lock portion A itself corresponds to the conventional device, and therefore, the length adjustment belt 3 also corresponds to the length adjustment belt 311 (FIG. 45) described in the conventional example, and is fixed to the tip thereof. The belt adjustment fitting 7 is also the belt adjustment fitting 110 described in the conventional example (FIG. 45).
Is equivalent to When the length adjustment belt 3 is suddenly pulled due to a collision or sudden braking, the locking claw 5 of the emergency lock portion A is locked to the gear 4 by this acceleration, and the drawer of the length adjustment belt 3 is urgently locked. It is supposed to. There are various configurations of the emergency lock portion itself, which are already well-known technologies, and thus further description is omitted.

A manual lock B is provided according to the present invention. The manual lock portion B includes a rotating plate 12 provided rotatably about a shaft 11, a spring 14 having one end fixed to the shaft 13 and constantly pulling the rotating plate 12, and a spring 14 The driving plate 6 is formed integrally with a wire 15 that is pulled against the gear 14 and a locking claw 5 that is locked to the gear 4, and is rotated by a rotating plate 12.

Therefore, when the wire 15 is pulled, the rotating plate 12 rotates about the shaft 11 so that the driving plate 6 is rotated.
The locking claw 5 that rotates integrally with the driving plate 6 rotates in the direction of the gear 4 and locks on the gear 4. As a result, the rotation of the drum is locked, and the pulling out of the length adjustment belt 3 is restricted.

The operation section C in FIG. 2 is also provided according to the present invention, and is for pulling the wire 15 in FIG. In FIG. 2, an operation unit C includes a U-shaped frame 21, a rotation plate 22 rotatably attached to the frame 21, and one end fixed to a shaft 23 so that one end of the rotation plate 22 The spring 24, which always pulls in one direction, the wire 15, and the rotating plate 2
2 and a control knob 26. The operation knob 26 includes a knob 26a for rotating the rotating plate 22 and a disk portion 26b.
A lock knob 28 is rotatably attached to a bearing 27 provided at the corner between the disk and the disk 26b. The lock knob 28 locks the operation knob 26 to disable rotation, and releases the lock to enable rotation.
As shown in FIGS. 2 and 3, the lock knob 28 is formed by forming a plate-like body into a hook (key) shape, and both ends of a bent portion are rotatably attached to a bearing 27 provided on a knob 26a. ing. A spring 29 is provided between one end of the lock knob 28 and the knob 26a, and constantly biases the entire lock knob 28 clockwise in FIG. A locking projection 31 is provided at the other end of the lock knob 28.

On the other hand, although not shown in FIG. 2, a locking hole 32 is formed in the disc portion 26b,
A locking hole 33 is also formed in the wall 21a on the near side of the front side. However, the locking holes 33 are formed at two locations at predetermined intervals on the locus of rotation of the locking projection 31. This is a configuration for locking the rotation position of the rotation plate 22 at two angles, which will be described later in detail as a manual locking function. FIG. 4 shows a connection structure 1 between the spring 25 and the wire 15 shown in FIG.
It is an enlarged view of a specific example. Both figures show that the wire 15 is pulled by rotating the operation knob 26. The wire 15 may be of the same type as that used for a brake of a bicycle or the like. In other words, the configuration is such that the steel wire 15b is inserted through the flexible cover 15a, and the steel wire 15b can be drawn even in a state of being bent and deformed. Further, since one end of the rotating plate 12 and the operation unit C shown in FIG. 1 are connected by the wire 15, even if the operation unit C is separated from the manual lock unit B, the manual lock unit B Can be operated.

Next, the overall operation of the retractor 1 of the present invention will be described. Since the retractor 1 is applied to a child seat, the child seat 101 shown in the conventional example is appropriately used. 1 of the retractor 1, ie, the emergency lock portion A and the manual lock portion B
Is embedded in the seat portion 102 of the child seat 101, and the length adjustment belt 3 is pulled out from the drawer opening 312. The operation unit C is also mounted in the seat 102. Since the wire 15 has flexibility as described above, the operation knob 26 can be easily operated from the outside, for example, the side surface of the seat unit 102. a.

It is assumed that the child sits on the child seat 101 as described above and the belts 106a and 106b are hung. In this state, for example, when the parent
6a, 106b, the belt 106a, 1b is inserted to the extent that the infant can move to some extent but does not come out.
Adjust the withdrawal of 06b. And operation knob 26
The lock knob 28 provided on the knob 26a is pressed against the spring 29.
Then, the locking projection 31 is removed from the locking hole 33. That is, the state shown by the solid line in FIG. 3 is operated to the state shown by the imaginary line, and the lock of the operation knob 26 is released. Next, when the operation knob 26 is rotated in a predetermined direction by releasing the lock knob 28 from the finger, the lock knob 28 is constantly urged by the spring 29, so that the lock knob 28 is engaged at a position where another locking hole 33 is formed. The stop projection 31 automatically fits into the locking hole 33 and is locked. When the knob 26 is rotated in this manner, the rotating plate 22 also integrally rotates against the spring 24. Due to the rotation of the rotation plate 22, the wire 15 is pulled through the spring 25. Here, since the spring 25 always urges the wire in the pulling direction in the locked state, the rotating plate 12 is pressed against the driving plate 6, and the locking claw 5 is moved by the gear 4.
Can be held in a pressed state.

On the other hand, when the wire 15 is pulled in the operation section C, the turning plate 12 shown in FIG. 1 turns against the urging force of the spring 14. And the protrusion 12a formed on the upper end
Pushes the upper end of the driving plate 6 to rotate the driving plate 6. Since the driving plate 6 and the locking claw 5 are integrated, when the driving plate 6 rotates, the locking claw 5 also rotates in the same direction, in other words, in the gear 4 direction, and meshes with the gear 4. At this time, the spring 25 of the operation unit C
The state in which the locking claw 5 is constantly pressed by the gear 4 is maintained by the action of. Therefore, the rotation of the gear 4 and the drum integrated with the gear 4 is restricted, and the pulling out and winding of the length adjustment belt 3 are restricted. Looking at this state for an infant, the degree of tightening of the belts 106a and 106b that restrain the infant, in other words, the degree of loosening, is set to be constant. Therefore, the infant can move within the range adjusted by the parent, but cannot make large movements to get out, and the parent can drive with peace of mind.

In this state, sudden braking may be applied,
Assuming that the vehicle suddenly stops due to a collision accident, the length adjustment belt 3 is pulled suddenly via the belts 106a and 106b. However, since the infant is already restrained using the retractor 1 of the present embodiment, the locking claw 5 is engaged with the gear 4 and the emergency lock portion A is operating. It is in a state. For this reason, although it does not function as the emergency lock portion A, the drawer of the length adjustment belt 3 is regulated, so that the infant is similarly protected and has no problem.
Thus, according to the present invention, by adding the manual lock mechanism to the retractor having the emergency lock mechanism,
In addition to preventing the infant from slipping out in a normal state, the safety of the infant can be similarly achieved in an emergency. When the manual lock portion B is not operated, the emergency lock portion A performs the original emergency lock operation when a sudden brake is applied or the vehicle is suddenly stopped due to a collision accident. As described above, according to the present invention, the parent can selectively use two types as desired. Further, the manual locking state in the present embodiment is not released unless the driver pulls the lock knob 28 again against the spring 29, and the driver does not care about the child getting out of the vehicle. Can be.

Next, another configuration example of the operation unit C will be described with reference to FIGS. Operation unit 35 in this configuration example
Is composed of a frame 36, an operation knob 37 provided to be able to traverse along the longitudinal direction of the frame 36, a lock knob 38 provided on the operation knob 37, and the like. The wire 15 is connected via the.
Guide protrusions 37a are provided at both ends of the operation knob 37 (FIG. 5).
Only one is shown), and the guide projection 37
a is inserted into a long guide hole 36b formed in both side wall portions 36a of the frame 36. One end of a spring 42 is fixed to the pin 41 provided on the wall portion 36a, and the other end of the spring 42 is engaged with the tip of the guide projection 37a. Therefore, the operation knob 37 is always urged rightward in FIG.

The lock knob 38 is formed in an L-shape when viewed from the side, and is rotatably attached to a corner of the operation knob 37. 5 and 6 is always urged in a counterclockwise direction by a spring 43 provided between the operation knob 37 and the operation knob 37. A locking projection 3 is provided at the lower end of the lock knob 38.
8a, on the other hand, locking holes 44a, 44b are provided at predetermined intervals at the bottom of the frame body 36.
The locking projection 38a is locked to 44b.

Next, the operation of the operation section 35 will be described.
As shown in FIG. 6, the locking projection 38a is located at the right locking hole 44b.
In this case, the wire 15 is not pulled, and the rotating plate 12 shown in FIG. 1 does not rotate. Therefore, the locking claw 5 is not locked to the gear 4, and in this case, the original emergency lock portion A is in a operable state. In contrast, lock knob 3
8 is pressed in the direction of the operation knob 37 against the spring 43, the locking projection 38a is disengaged from the locking hole 44b.
7 can be moved. Then, the operation knob 37 is moved to FIG.
6 is moved in the direction of the arrow in FIG. 6 (to the left in the drawing), the locking projection 38a is automatically biased by the spring 43 at the position of the locking hole 44a.
a.

By moving the operation knob 37 in this manner, the wire 15 is pulled through the spring 39, the lower end of the rotating plate 12 shown in FIG. Lock to 4. When the locking projection 38a is locked in the locking hole 44a, the rotating plate 12 is pulled and continues to push the upper end of the driving plate 6 in the same manner as described above, whereby the locking claw 5 meshes with the gear 4. to continue. Therefore, the infant can be restrained in a state set in advance by the parent as described above, so that the infant can be prevented from slipping out in normal times, and an accident at the time of a sudden stop can be prevented as before in the past.

Next, a second embodiment of the present invention will be described with reference to FIGS. Note that the present embodiment and the first
The difference from the embodiment is that the emergency lock unit A / manual lock B and the operation unit C, which are separately arranged in the first embodiment, are integrated. Therefore, members having the same functions as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the retractor 1 according to the present embodiment, the frame 2
The frame 21 constituting the operation unit C is integrally provided outside the unit. The rotating plate 12 is fixed to the tip of a shaft 22a that rotates integrally with the rotating plate 22 provided on the operation unit C. The wire 15 connected to the turning plate 12 in the first embodiment is deleted, and the turning plate 12 is turned directly by turning the operation knob 26. The configuration and the like of the operation knob 26 and the lock knob 28 in the operation unit C may be the same as those in the first embodiment.

According to the retractor 1 of this embodiment, the operation knob 26 is rotated and locked in the same manner as described above, so that the rotation plate 12 directly pushes the upper end of the drive plate 6 and the locking claw 5 is moved. Since the pull-out and storage of the length adjustment belt 3 is restricted by meshing with the gear 4, parts such as the wire 15 can be reduced. Also in the present embodiment, the parent adjusts the belts 106a and 106b for restraining the infant in the same manner as described above, and operates the operation knob 26 to lock the length adjustment belt 3 so that the infant can escape in the normal state. In addition to preventing accidents, accidents at the time of sudden stop can be prevented as before. In addition, as long as the lock knob 28 is not operated to rotate the operation knob 26, the removal of the infant is restricted, and the driver can drive without concern.

Next, a third embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the locking claw 5 is directly engaged with the gear 4 by operating the operation portion C, and members having the same functions as those in the above embodiments are denoted by the same reference numerals. The description is omitted. That is, the retractor 1 in the present embodiment does not use the driving plate 6, the rotating plate 12, the spring 14, the wire 15, and the like in FIGS. Are integrated with the frame 21. A pushing member 47 is provided at the tip of the shaft 22a that rotates integrally with the rotation plate 22 that constitutes the operation unit C. The pressing member 47 is
The locking claw 5 is formed in an L-shape in cross section so as to abut on two side surfaces. By the rotation of the pressing member 47, the pressing member 47 presses the locking claw 5, and the locking claw 5 meshes with the gear 4. Therefore, the pressing member 47 can be regarded as the manual locking portion B. The configuration and operation of the operation knob 26, the lock knob 28, and the like in the operation unit C are as described in each of the above embodiments.

The retractor 1 is buried in a child seat, and an operation knob is provided outside so as to be operable outside. After the parent appropriately sets the gap between the infant's body and the belt, and operates the operation unit C in the same manner as described above, the pushing member 47 pushes the locking claw 5 in the gear 4 direction, and the locking claw 5 Meshes with 4. As a result, the rotation of the gear 4 and thus the drum is stopped, so that the length adjustment belt 3 cannot be further pulled out and stored, and the adjustment condition of the belt set by the parent is maintained, so that the infant can be prevented from coming off.
Also, in the case where the vehicle is suddenly stopped or an accident occurs in this state, the infant is in a protected state since it is already locked as described above. Furthermore, when the manual locking is not performed, the original emergency locking becomes possible, so that the retractor 1 can be multifunctional and the usability of the child seat can be improved.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, an operation knob constituting the operation section C is provided integrally with the frame 2 constituting the emergency lock section A, and members having the same functions as those in the above embodiments are denoted by the same reference numerals. The description is omitted here. As shown in FIGS. 11 and 12, one of the walls 2 a constituting the frame 2 is formed with a guide hole 51 which is long in the lateral direction. The guide hole 51 has L
A guide portion 52a of the letter-shaped operation member 52 is inserted, and a lock knob 53 is rotatably attached to a side surface of a wide knob portion 52b by a bearing portion 54. The lock knob 53 is always urged in one direction by a spring 55, and locks a locking projection 56 provided on the other end with locking holes 57a, 57b formed at predetermined intervals in the wall 2a. .

On the other hand, on the side surface of the knob 52b, a pipe-shaped guide member 58 is fixed in a standing state, and a guide rod 59 is provided in the inside thereof so as to reciprocate freely. Guide rod 5
9 is inserted through the inside of a spring 61, and a pushing member 62 for urging the locking claw 5 is fixed to the tip of the spring. A part of the rear end of the wall 2a is bent to form a spring support 2c, and the other end of the spring 63 having one end fixed to the spring support 2c is locked to one end of the guide 52a. Operation member 52
It is configured to always pull the entirety rearward, that is, in the direction away from the gear 4 in FIG.

When manual locking is not performed in the retractor 1, the entire operation member 52 is pulled toward the rear end of the guide hole 51 by the spring 63 as shown in FIG. 11, and the locking projection 56 is shown in FIG. Lock hole 57a
To lock. In this state, the manual length adjustment belt 3 is not locked, and the emergency lock unit A performs the same operation as the conventional operation when the vehicle is suddenly stopped. On the other hand, when performing manual locking, the lock knob 53 is pulled against the spring 55 to release the locking between the locking projection 56 and the locking hole 57a. The whole is pushed in the gear 4 direction. At this time, the operation member 52 advances forward without swinging up and down because the guide portion 52a is guided by the guide hole 51. When the locking projection 56 is pushed to the vicinity of the position corresponding to the locking hole 57b, the pushing member 62 pushes the locking claw 5, and the locking projection 56 is locked in the locking hole 57. In this position, the locking claw 5 meshes with the gear 4.

The locking projection 56 is locked in the locking hole 57b, so that the rotation of the gear 4, that is, the pull-out and storage of the length adjustment belt 3, is regulated, and the adjustment state of the belt set by the parent is maintained. Will be done. This manual locking state continues as long as the lock knob 53 is not pulled again against the spring 55, so that the operation can be performed while the child does not come out.

Next, a fifth embodiment of the present invention will be described with reference to FIG. In the present embodiment, manual locking can be performed without using the conventional locking claw 5 for emergency locking. Members having the same functions as those of the above embodiments are denoted by the same reference numerals, and description thereof is omitted. That is, in the retractor 1 according to the present embodiment, the frame 2 and the frame 21 forming the operation section C are integrated, and a locking pawl 65 for manual locking is newly provided at the tip of the shaft 22a forming the operation section C. It is a thing. The configuration and operation of the operation knob 26 and the lock knob 28 in the operation unit C may be the same as described above.
According to this configuration, the operation knob 26 is operated in the same manner as described above, after the length of the belt is set so that the child whose parent is sitting on the child seat can move but does not slip out.
When the shaft 22a rotates, the locking claw 65 meshes with the gear 4, and the rotation of the gear 4 can be restricted to lock the length adjustment belt 3 regardless of the locking claw 5. In the present embodiment, the same effects as those of the above embodiments can be obtained.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the length adjusting belt 3 is directly locked without regard to the locking claws and the like. And the description is omitted. In the retractor 1 according to the present embodiment, a pressing member 66 is rotatably provided between the opposed wall portions 2a and 2b. The pressing member 66 has a substantially triangular side shape and a base portion rotatably attached to the wall portions 2a and 2b by a shaft 67. Further, a spring 78 is interposed between the distal end side of the pressing member 66 and a screw shaft 73 to be described later, and the pressing member 66 is constantly moved to the center shaft 67 in FIG.
It is urged clockwise around. That is, a gap is formed between the lower curved side surface of the pressing member 66 and the length adjustment belt 3 wound around the drum.

A pressing mechanism 71 for pressing the pressing member 66 against the side surface of the length adjusting belt 3 is provided on the side of the pressing member 66, that is, in the pulling-out direction of the length adjusting belt 3. The pressing mechanism 71 includes substrates 72a, 72b provided before and after the walls 2a, 2b, a screw shaft 73 rotatably provided between the substrates 72a, 72b, and an operation unit 73a for rotating the screw shaft 73. , A nut block 74 that moves by the rotation of the screw shaft 73 and applies the pressing member 66 to the side surface of the length adjustment belt 3. The gears 4 and the locking claws 5 described in the above embodiments are covered by a cover 75 provided outside the wall 2a.

When the retractor 1 does not operate the manual lock mechanism, the emergency lock is performed in the same manner as described above. On the other hand, when performing manual locking, the length of the belt is adjusted so that the parent can move the infant in the same manner as described above.
By operating 3a, the screw shaft 73 is rotated clockwise, for example, as shown by an arrow in FIG. As a result, the nut block 74 moves in the direction of the substrate 72b in FIG.
The pressing member 66 is strongly pressed in the direction of the length adjustment belt 3 corresponding to the angle of the slope 6. Therefore, the length adjustment belt 3 is braked, and the drawer storage is restricted. Also in the present embodiment, the same effects as described above can be obtained.

Next, a seventh embodiment of the present invention will be described with reference to FIGS. In this embodiment, as in the sixth embodiment, the length adjusting belt 3 is directly locked irrespective of the locking claws and the like. Members having the same functions are denoted by the same reference numerals, and description thereof is omitted. The retractor 1 of the present embodiment is configured to perform manual locking with the pulled-out length adjustment belt 3 sandwiched therebetween. That is,
At the pull-out opening of the length adjustment belt 3,
Is provided. The pinching mechanism 81 includes a guide plate 83 that moves vertically by being guided by guide holes 82a and 82b formed in the walls 2a and 2b in a vertically elongated shape, and a hole formed in the guide plate 83 (see FIG. A pressing plate 85 attached to the tip of a pin 88 inserted through the pressing plate 85 (not shown), and springs 84a and 84b interposed between the pressing plate 85 and the guide plate 83 are constituted as main members. Lock pins 86a, 86b are provided on the inner surfaces of the walls 2a, 2b in a standing manner, and the guide plates 83 are pulled up by springs 87a, 87b.

When performing manual locking, the wire 15 is pulled by the operation unit C described in the first embodiment. The wire 15 is fixed to the end of the guide plate 83. When the wire 15 is pulled, the pulling direction is changed by the guide pins 89a and 89b, and the guide plate 83 moves downward against the springs 87a and 87b. At the same time, the pressing plate 8
5 also moves downward, and the length adjusting belt 3 is gently pressed by the springs 84a and 84b at first, and then strongly pressed by the springs 84a and 84b by the lowering of the pressing plate 85.

As described above, the manual locking can be performed by sandwiching the length adjustment belt 3 and using the separated operation portion C. Therefore, also in the present embodiment, not only the same various effects as described above can be obtained but also the position of the operation unit C is not specified, so that there are new effects such as improvement in usability of the child seat. In the above-described embodiment, the springs 84a and 84b are not necessarily required, and the pressing plate 85 may be directly attached to the guide plate 83 without using a spring.

Next, an eighth embodiment of the present invention will be described with reference to FIGS. In this embodiment, the length adjustment belt 3 is sandwiched to perform manual locking.
The clamping mechanism is separated from the frame 2. That is, the pinching mechanism 91 includes a cover 92 having an opening through which the length adjustment belt 3 is inserted, a bar 93 pressing the length adjustment belt 3, and a spring 94 (opening spring) for urging the bar 93 downward. ), And an operation unit C provided outside the cover 92. One end of the spring 94 is locked to the inside of the cover 92, and the other end is locked to a protruding locking portion 93 a formed at one end of the bar 93. As described in each embodiment, the operation unit C is configured to operate in a locked and free manner by the turning operation of the operation knob.

When the operation section C is locked, the operation shown in FIG.
As shown by the solid line, the bar 93 is lowered by the urging force of the spring 94 as shown by the arrow. The lowering of the bar 93 causes the bar 93 to clamp the length adjustment belt 3. Therefore,
Manual locking is performed to restrict the length adjustment belt 3 from being pulled out and stored. On the other hand, when operating the operation section C freely, the operation section C is operated against the urging force of the spring 94, and the bar 93 is separated from the adjustment belt 3 as shown by the imaginary line in FIG. As a result, the length adjustment belt 3 is in a state where it can be pulled out and stored, but the emergency lock portion is in a state where it can operate in the same manner as described above. In addition, by forming a plurality of protrusions T in the vicinity of the lower end of the cover 92 in contact with the length adjustment belt 3 near the bar 93 being pressed, the contact resistance with the length adjustment belt 3 is increased, and the locking is performed. The effect is further improved. Thus, the retractor 1 of the present embodiment
Can be manually locked in the pull-out path of the length adjustment belt 3, so that when applied to a child seat, the degree of freedom of design is improved, and the same effects as those of the above embodiments can be obtained.

Next, a ninth embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the length adjustment belt 3 is manually locked on the rear side of the child seat. On the rear side of the child seat 111, a manual lock mechanism 121 is provided as shown in FIG. The child seat 111 is a base 1 fixed to a vehicle seat by using a safety belt 112.
13, and a seat portion 114 on which an infant is seated. A manual lock mechanism 121 is provided on the back side of the seat portion 114, and an operation portion C is provided on a side surface of the seat portion 114. As shown in FIG. 22, the seat portion 114 has a pair of through holes 11 at an interval slightly wider than the width of the length adjustment belt 3.
5a and 115b are opened, and the through holes 115a and 11b are opened.
5b shows a reciprocating member 1 constituting the manual lock mechanism 121.
22a and 122b are inserted. Reciprocating member 122
22a and 122b are fixed to the pressing member 123. When the reciprocating members 122a and 122b are pulled upward in FIG. Is to do.

The reciprocating members 122 a and 122 b are fixed to the drive shaft 124 inside the seat 114, and are constantly urged toward the rear side of the seat 114 by a spring 125. Therefore, the reciprocating members 122a and 122b are not moved in the direction against the spring 125 by the drive shaft 124, as shown in FIG.
, And a gap is formed between itself and the surface of the seat portion 114, so that the length adjustment belt 3 can be freely pulled out and rolled in. The left end of the drive shaft 124 is connected to the operation unit C as shown in FIG. The configuration of the operation unit C is basically the configuration shown in FIG. That is,
In the side surface of the seat portion 114, a guide hole 11 elongated in the lateral direction is provided.
5 is formed, and the end of the drive shaft 124 is
15, and an operation knob 125 is fixed to the end thereof. A lock knob 126 is rotatably attached to the operation knob 125, and is driven by a spring 127 from a state shown by an imaginary line in FIG. 23 to a state shown by a solid line. As shown in FIG. 21, the side surface of the seat portion 114 is below the guide hole 115 (this position may be above).
In addition, as shown in FIG.
a, 116b are formed.

According to the manual lock mechanism 121 having the above-described structure, the lock knob 126 is provided with the locking hole 11 as shown in FIG.
6b, the reciprocating members 122a, 122
2b is positioned as shown in FIG. 22, and the length adjustment belt 3 can be freely drawn and wound.
However, the retractor around which the length adjustment belt 3 is wound is in a state where the original emergency lock can be operated. On the other hand, when the operation knob 125 is operated to lock the lock knob 126 in the engagement hole 116a, the operation portion C and the drive shaft 124 are pulled in the arrow direction shown in FIG. The reciprocating members 122 a and 122 b are pulled against the spring 125, and the length adjusting belt 3 is pressed against the back surface of the seat 114 by the pressing member 123.
As a result, the length adjustment belt 3 is neither pulled out nor wrapped, and is manually locked.

Next, a tenth embodiment of the present invention will be described with reference to FIGS. The present embodiment is configured so that manual locking is performed using a belt adjustment bracket on the back surface of the seat portion. Is omitted. A guide groove 132 is formed in the vertical direction on the back surface of the seat portion 114 near the position where the belt adjustment fitting 131 is positioned. A T-shaped sandwiching plate 133 is provided on the back surface of the belt adjusting bracket 131, and a retaining member 134 is provided on the sandwiching plate 133.

On the other hand, a guide groove 135 is formed so as to be orthogonal to the guide groove 132, and an operation portion C is provided in the guide groove 135 so as to be able to traverse. The operation unit C in this embodiment may be basically the same as the configuration described with reference to FIG.
5 also functions as a guide member. Operation knob 1
A spring 137 is locked to one end of the lock 36, and the spring 137 always pulls the operation knob 136 to the left in FIG. A push member 139 urged by a spring 138 is provided at an end of the operation knob 136. Seat 114
Is provided with a sandwiching mechanism 141 for sandwiching the sandwiching plate 133 from both sides. The pinching mechanism 141
Rotating members 143a and 143b of a target structure that rotate around the support shafts 142a and 142b, and a pair of pressing members 144
a, 144b, and a rotating member 143a, 1
Gears 145a and 145b are formed at the base of 43b, respectively.

When performing manual locking, the lock knob 13
6a is operated in the same manner as described above, and the operation knob 136 is moved to the guide groove 1
25 to the right in FIG. In response to this movement, the pressing member 139 also moves rightward,
a starts to rotate. When the rotation member 143a rotates, the rotation member 1 is actuated by the action of the gears 145a and 145b.
When the operation knob 136 is locked in the locked position, the pressing member 14b is rotated as shown in FIG.
4a and 144b sandwich the sandwiching plate 133 from both sides. As a result, the belt adjustment fitting 131 cannot be moved in the vertical direction, and the length adjustment belt 3 is not pulled out and entangled, so that the manual adjustment is locked.

In this embodiment, the sandwiching plate 133 is sandwiched between the rotating members 143a and 143b from both sides. However, the present invention is not limited to this configuration. For example, the rotating member 143
Instead of b, a plate material may be disposed along the sandwiching plate 133 and pressed against the plate material by the rotating member 143a.

Next, an eleventh embodiment of the present invention will be described with reference to FIGS. The present embodiment is configured so that manual locking is performed using a belt adjustment bracket on the back surface of the seat portion. Is omitted. A guide groove 132 is formed in the vertical direction on the back surface of the seat portion 114 near the position where the belt adjustment fitting 131 is positioned. And, in the belt adjustment bracket 131,
A screw insertion hole 131a is formed, and a screw 151 inserted through the guide groove 132 is inserted from inside the seat 114.
A washer 152 for preventing the screw 151 from passing through the guide groove 132 is hung on the head, and a wing nut 153 is screwed on an end.

According to the above configuration, by loosening the wing nut 153, the belt adjustment fitting 131 is moved to the guide groove 132.
Wing nut 153
By tightening, the belt adjustment fitting 131 can be fixed at an arbitrary position. Therefore, the parent is thumb screw 1
The length of the belt can be easily adjusted by the operation of the belt 53, and after the adjustment, the pulling out and winding of the belt 3 can be restricted. For this reason, there is no inconvenience such as the infant getting out of the belt, and safety can be maintained even in the case of a sudden stop. Note that each of the above-described embodiments may be appropriately combined. That is, the rotation of the drum is restricted, and a more secure lock is realized by adopting a structure such as holding the belt.

Next, various modifications of the operation unit C of the first embodiment will be described. Of the following nine modifications, the first to seventh modifications are of the type in which the operation knob is rotated to pull the wire, and fall into the category of FIG. . 2 differs from FIG. 2 in that a rotating plate 22 is used, whereas the following uses a shaft. Further, the eighth and ninth modified examples are of a type in which the operation knob is slid to pull the wire, and fall within the category of FIG. Therefore, the first type will be described first. 29 to 32 show a first modification of the operation unit C according to the first embodiment. In FIG. 29 (a),
One support plate 203 and another support plate 204 for supporting the shaft 202 are fixed to the base 201. As shown in FIG. 29B, a shaft retainer 205 is fixed on the support plates 203 and 204 to rotatably support the shaft 202. As a fixing means of the shaft retainer, an arbitrary method such as welding, bolting, and nut tightening is used. The shaft 20 thus supported on the shaft
2 has one end protruding from one side wall 206 of the base 201, and the operation knob 207 is fixed thereto. An arm 208 is fixed to the other end of the shaft 202. Pin 20 provided at the tip of arm 208
One end of a coil spring 210 is attached to 9, and one end of a wire 211 is attached to the other end of the coil spring 210. The wire 211 is guided to the outside through the guide base 214 attached to the other side wall 212 of the base 201 by the cover 213, and operates the manual lock portion B in FIG. An operation position holding button 215 protrudes from a rotation area of the operation knob 207 attached to one side wall 206. This button 215
As shown best in FIG. 30A, the head is pushed out of one side wall by being pressed by a coil spring 217 housed in a case 216 built in one side wall 206. Here, the operation knob 207 is configured not to rotate unless the button 215 is depressed, thereby preventing erroneous operation. A claw 218 is provided on a portion of the shaft 202 facing the one support plate 203, and this claw 218 is provided on the one support plate 203 as best shown in FIG. The rotation range of the shaft 202 is set in advance in the arc-shaped notch groove 219 for controlling the rotation range. That is, the notch groove 219
Is the second operating position X which is the belt drum release area.
The left end of the notch groove 219 is a first operation position Y which is a lock area of the belt drum, and the claw 218 can move in this range.

[0054] In the wire type operation section of such a structure, as shown in FIG. 31 is a released state in which slack of the wire 211, the arm 208 is in the second operation position X, carp <br/> Rubane 2 10 It is in a contracted state. In this case, the operation knob 207 is in the state shown in FIG. In order to shift from the second operation position X to the first operation position Y, the button 215 is pushed in the P direction, that is, into the case 216 in the side wall 206, and the operation knob 207 is turned in the Q arrow direction. As described above, the button 215 is not rotated unless it is pressed once, thereby preventing erroneous operation. When the operation knob 207 is turned in the direction of the arrow Q, the arm 208 fixed to the shaft 202 integrally with the operation knob 207 rotates in the direction of the arrow R. As the arm 208 rotates, the pin 209 provided on the arm 208 pulls the coil spring 210 in the direction of arrow S (FIG. 29A ) . Thereby, the coil spring 210 pulls the wire 211 in the direction of the arrow T [(FIG. 29A)] to tighten the wire 211. The wire 211 is the same as the wire 15 in FIG. This means that the one wire 15 is tightened, thereby operating the manual lock portion B of Fig. 1. The operation of the manual lock portion B is the same as that of Fig. 1, and the description thereof will be omitted.

In the course of this operation, the operation knob 207 gets over while pressing the button 215 to reach the first operation position Y, and the button 215 is again pressed by the coil spring 217 to put the head out of the side wall 206. The operation knob 207 is locked by being protruded (see FIG. 32A).
In these courses, as shown in FIG.
Reference numeral 08 rotates from the second operation position X to the first operation position Y, but passes through an imaginary line CL connecting the wire outlet of the guide base 214 fixed to the other side wall 212 of the base 201 and the axis of the shaft 202. . Pin 20 provided on arm 208
When 9 is between X and CL, the pulling force of the coil spring 210 applies a rotational force of f1 (the direction opposite to the direction of the arrow R) to the arm 208, but the pin 209 of the arm 208 exists on the CL line. In this case, no rotational force is applied. When the pin 209 of the arm 208 is between CL-Y, a rotational force of f2 (in the direction of the arrow R) is applied to the arm 208 by the coil spring 210. At this time, as best shown in FIG.
The button 215 and the operation knob 207 come into contact at the point y, and the operation knob 207 receives a rotational force in the direction f4 (the same as the direction of the arrow R). However, depending on the shape of the button 215 and the positional relationship between the button and the operation knob, a force opposite to f4 can be applied.

As described above, the pawl 2 provided on the shaft 202
18 and the notch groove 219, the position of the arm 208 which is separated from the virtual line CL, and the mutual operation of the operation knob 207 and the button 215, release the operation knob 207 and operate the external force. 32, the operation knob 207 can be held at the second operation position X or the first operation position Y as shown in FIG. 32 (b), and can be held at the intermediate position which is the position of misuse. Absent. In order to shift from the first operation position Y in the tension state of the wire 211 to the second operation position X, the operation knob 207 is pressed while pushing the button 215 in the direction of the arrow P shown in FIG. 32
Rotate in the direction of arrow U as shown in FIG. Thus, when the operation knob 207 is shifted from the first operation position Y to the second operation position X, the arm 208 rotates in the direction opposite to the direction of the arrow R, and the coil spring 210 changes from the extended state to the contracted state. , The wire 211 is slackened and the belt drum is unlocked. In FIG. 31, the positional relationship between the operation positions X and Y is exaggerated for easy understanding, but the actual circumferential interval is narrower. However, the angle can be set arbitrarily in design.

FIGS. 33 and 34 show second and third modifications of the operation unit C according to the first embodiment. FIGS. 29 to 32, which are a first modification of the operation unit C of the first embodiment, fix the rotation of the shaft using the button 215, whereas FIGS. Button 21 for both
5 is a type which does not require. That is, FIG.
3 and FIG. 34 are both operation knobs (223 in FIG. 33,
By slightly moving 234) of FIG. 34 in the horizontal direction in FIG.
After a slight rotation in the direction, it is returned to the horizontal direction opposite to the previous direction, and the type in which the rotation of the operation knob is fixed is common. The former is a type of pushing the operation knob 223,
The latter is different from the latter in that the operation knob 234 is pulled out. FIG. 33 shows a type in which the operation knob 223 of the operation unit C according to the first embodiment is pushed in. FIG. 33 (a) shows a state in which the operation knob 223 is unlocked, and FIG. FIG. 33 (c) shows a state in which it is pushed in.
33A is a perspective view, partly in section, of the operation unit C in the state of FIG. 33A, and further, each of (1) in FIGS.
23 is an axial cross-sectional view of FIG. 23, and each (2) is a partial cross-sectional view of the operation unit C. First, in FIG. 33, a shaft 222 supported by a support plate 221 fixed to the base 201 is supported.
The operation knob 223 is fixed to the left end of the operation knob 2.
A coil spring 224 concentric with the shaft 222 is provided between the support 23 and the support plate 221, and the operation knob 223 is normally set to be at the left position as shown in FIGS. ing. In FIG.
3 is almost cylindrical and hollow as a whole,
However, at the lower end (right side in the figure), a stop ring 223a for preventing the operation knob 223 from popping out is formed, and at the upper end (left side in the figure), the operation knob 223 is formed.
The convex part 223b is formed so that can be easily turned. The bottom of the operation knob 223 has a rectangular portion 2 of the shaft 222.
A rectangular cross-section hole into which a 22b (described later) is inserted is formed. A part of the right end of the operation knob 223 is a claw 225.
Are provided in the axial direction. Side wall 226 of base 201
Has a circular through hole 2 into which the operation knob 223 is inserted.
27, and a notch groove 228 for the first operation position Y and a notch groove 229 for the second operation position X are provided on the circumference of the through hole 227 [FIG. 33 (c)]. ].
The claw 225 provided on the right end of the operation knob 223 is engaged with either the notch groove 228 or 229 as required by the user. Although the shaft 222 has a cylindrical shape as a whole, only the left side has a predetermined length from the left end (ie,
(A distance slightly longer than the axial movement distance of the operation knob 223)
Only the rectangular section 222b as shown in FIGS.
When the operation knob 223 is pushed into the shaft 22, the rectangular section 222 b is loosely fitted into the rectangular section hole at the bottom of the operation knob 223.
2 is horizontally moved (slid) to the right in the right direction, and the rotation of the operation knob 223 causes the shaft 222 to follow and rotate. The left end of the shaft 222 is provided with a stopper 22 for preventing the operation knob 223 from coming off.
2c is provided. A claw 218 is provided on a portion of the shaft 222 facing the one support plate 204.
As shown best in FIG. 30B, the claw 218 is housed in an arc-shaped notch groove 219 provided on one support plate 204 for regulating the rotation range, and the rotation range of the shaft 222 is adjusted. Is predetermined. That is, the right end of the notch groove 219 is the second operation position X, which is the release area of the belt drum, and the left end of the notch groove 219 is the first operation position Y, which is the lock area of the belt drum. Is movable in this range. On the other hand, an arm 208 is provided on the right side of the shaft 222, a coil spring 210 is locked on the arm 208, and a wire 211 is locked on the coil spring 210. The wire 211 is the same as the wire 15 in FIG. 1. When the wire 211 is tightened, the wire 15 in FIG. 1 is tightened, and the manual lock unit B in FIG. 1 is operated. The operation of the manual lock unit B is the same as that of FIG. 1, and the description thereof is omitted. In this modification, in order to move the operation knob 223 from the second operation position X shown in FIG.
First, the operation knob 223 is pushed in the direction of the arrow P. Then, the operation knob 223 horizontally moves rightward on the shaft 222, and therefore, as shown in FIG. 33B, the coil spring 224 is compressed, and the claw 2 provided on the operation knob 223 is moved.
25 comes off the notch groove 229 provided in the side wall 226. When the operation knob 223 is rotated in the direction of the arrow Q in this pushed state, and the claw 225 provided on the operation knob 223 is engaged with the notch groove 228 and released, the coil spring 224 is released.
Pushes the operation knob 223 to the left, and the holding of the first operation position Y is completed. Conversely, when shifting from the first operation position Y to the second operation position X, the operation knob 223 is pushed in the direction of the arrow P, the claw 225 is removed from the notch groove 228, and the operation knob 223 is Rotate in the direction opposite to the arrow direction,
The claw 225 may be engaged with the notch groove 229. As described above, the operation knob 223 does not rotate unless the operation knob 223 is once pushed in the P direction, thereby preventing malfunction.

Next, FIG. 34 will be described. While FIG. 33 shows a type in which the shaft 222 is pushed in,
FIG. 34 shows a type in which the shaft 232 is pulled out. FIG.
FIG. 34A shows a state in which the operation knob 232 is unlocked, and FIG.
FIG. 34B shows a state in which the operation knob 232 is pushed in, FIG.
FIG. 34C is a partial cross-sectional perspective view of the operation unit C in the state of FIG. 34A, and further shows each (1) of FIGS. 34A and 34B.
(B) is an axial sectional view of the operation knob 232, (a) of each (1) is a DD sectional view of each (b), E
It shows the -E cross-sectional view. Each of (2) in FIGS. 34A and 34B is a partial cross-sectional view of the operation unit C.
The shaft in FIG. 34 is a right shaft 232 and a left shaft 23.
2 '. The right shaft 232 has a columnar shape as a whole, but only the left side is illustrated in FIGS. 1A and 1A from the left end by a predetermined length (that is, a distance slightly longer than the axial movement distance of the operation knob 232). Is formed in the rectangular section 232b. A stopper 232c is provided at the left end of the shaft 232 to prevent the left shaft 232 'from coming off. The left shaft 232 'is substantially cylindrical and hollow as a whole, and has a rectangular cross-section hole at the right end side into which the rectangular portion 232b of the right shaft 232 is inserted. The left shaft 232 ′ is axially supported by a support plate 231 fixed to the base 201,
The left end protrudes to the left from the side wall 233 of the base 201, and a linear operation knob 234 is attached to this protruding portion. Operation knob 234 is left shaft 232 '
This is effective when pulling out or rotating. The right shaft 2 is inserted into the rectangular section hole at the bottom of the left shaft 232 '.
32 is loosely fitted with the aforementioned rectangular section 232b,
Even if the left shaft 232 'moves in the axial direction, the right shaft 2
32 does not follow, but when the left shaft 232 'rotates, the right shaft 232 also rotates. Operation knob 2
34 is normally (a) and (b) of FIG.
As shown in FIG. 34, when the operation knob 234 is pulled out (see FIG. 34B), the left shaft 23
2 ′ is horizontally moved (slid) leftward on the shaft 232, and the rotation of the operation knob 234 causes the left shaft 232 ′ to rotate, and the right shaft 232 is also driven to rotate. Also, the left shaft 23 near the side wall 233
2 ′, a holding plate 235 is fixed.
A coil spring 236 is locked between 35 and the side wall 233, and a force for moving the left shaft 232 'to the right is urged. On the other hand, the operation knob 2 of the shaft 232
A stop ring 237 is provided in the vicinity of 34 to restrict the left and right movable range of the shaft 232. On the right side of the holding plate 235, a selection plate 238 is fixedly attached to the left shaft 232 '. On the right side surface of the selection plate 238, a claw 239 projects, and as shown in FIG. 34 (c), a second operation position cutout groove 240 provided through the support plate 231 or a second cutout groove. The structure is such that it fits into one notch 241 for the operation position. The right shaft 232 faces one of the support plates 204,
A claw 218 is provided, and this claw 218 is provided as shown in FIG.
As shown in FIG. 2, the rotation range of the shaft 232 is set in advance in an arc-shaped notch groove 219 provided on one support plate 204 for restricting the rotation range.
That is, the right end of the notch groove 219 is the second operation position X, which is the release area of the belt drum, and the notch groove 219
Is a first operation position Y which is a lock area of the belt drum, and the claw 218 is movable in this range. An arm 208 is provided on the right side of the right shaft 232, a coil spring 210 is locked on the arm 208, and a wire 211 is locked on the coil spring 210. The wire 211 is the same as the wire 15 in FIG.
When the wire 11 is tightened, the wire 15 in FIG. 1 is tightened, and the manual lock B in FIG. 1 is operated. The operation of the manual lock unit B is the same as that of FIG. 1, and the description thereof is omitted. FIG.
(A), the coil spring 236 is extended and the selection plate 238 is set.
2 shows a state where the claw 239 provided on the support plate 231 is locked by the second operating position cutout groove 240 provided on the support plate 231.
To shift from this state to the first operation position,
The operation knob 234 is pulled out in the direction of the arrow V to pull out the claw 239 from the second operation position cutout groove 240 to disengage each other. Then, as shown in FIG. Rotate in the direction of the arrow Q to engage the claw 239 with the notch 241 for the first operation position, and then release the operation knob 234. Then, the coil spring 236 is extended, and the claw 239 is inserted into the notch groove 24 for the first operation position.
Lock to 1. At this time, the operation knob 234 moves from the second operation position X direction to the first operation position Y direction (see FIG. 34C). When shifting from the first operation position to the second operation position, the operation knob 234 may be pulled out in the direction of the arrow V, and the operation opposite to the above may be performed. As described above, the operation knob 234 does not rotate unless it is pulled out once, thereby preventing erroneous operation.

FIG. 35 shows the operation unit C of the first embodiment.
A modified example will be described. FIG. 35 shows a button 2 for preventing rotation of the shaft.
FIG. 3 is a type using the 48, and belongs to the same category as FIG. 30 which is the first modified example.
5 is that the spring support case 249 is used and the support plate 203 is omitted. In FIG. 35A, a claw 244 is provided on an attachment portion of the shaft 242 to which the operation knob 243 is attached, and the claw 244 is attached to the base 20.
It is structured to rotate within an arc-shaped notch groove 247 (see FIG. 35 (b)) provided on one side wall 246. The position of the claw 244 in the notch groove 247, that is, the position of the operation knob 243, is regulated by a button 248 protruding in the rotation range of the operation knob 243. The button 248 projects below the operation knob 243 through the side wall 246, and its bottom is pressed by a coil spring 250 locked by a spring support case 249 fixed to the side wall 246. The arm 20 is located on the right side of the shaft 242.
8, a coil spring 210 is locked to the arm 208, and a wire 211 is locked to the coil spring 210. The wire 211 is the same as the wire 15 in FIG.
Is tightened, whereby the manual lock portion B of FIG. 1 is operated. The operation of the manual lock unit B is the same as that of FIG. 1, and the description thereof is omitted. The second operation position X (claw 24) shown in FIG.
4 is in the second operation position X of the notch groove 247. ) To the first operation position Y, first, FIG.
By pressing the button 248 in (c) in the direction of the arrow P and rotating the operation knob 243 in the direction of the arrow Q, and releasing the button 248 after the operation knob 243 has passed through the button 248, the button 248 is pressed by the biasing force of the coil spring 250. Is returned to the original position, and the operation knob 243 is moved to the first operation position Y.
Is held. At this time, the claw 244 is at the first operation position Y of the notch groove 247. When shifting from the first operation position Y to the second operation position X, the button 248 may be pushed in the direction of the arrow P, and the operation knob 243 may be rotated in the direction opposite to the direction of the arrow Q. As described above, the button 248 is not rotated unless it is pressed once, thereby preventing erroneous operation.

FIGS. 36 and 37 show a fifth modification of the operation unit C of the first embodiment. The fifth modification is of a type in which the button is provided at the center of the axis of the operation knob.
6 is an exploded view, FIG. 37 (a) is a partial longitudinal sectional view, FIG.
FIG. 7 (b) is an explanatory view of a cutout groove, and FIG. 37 (c) is a perspective view. In FIG. 36, the hollow operation knob 251 has a hole 252 at the center in the axial direction.
The button 254 urged in 3 fits. Above the button 254, two stoppers 255 are provided so as not to protrude from the hollow operation knob 251, and two claws 256 are provided below. The lower part of the button 254 is housed in the hollow shaft connection 257, and this hollow shaft connection 2
57 is fixed to the hollow operation knob 251 by a screw 258 or the like. At the right end of the hollow shaft connection 257, a shaft 259 is formed. The arm 260 is fixed to the shaft 259 by a bolt 261. The shaft 259 is supported by the support plate 262. Shaft 259
Hole 263 at the lower end of arm 260 fixed to
62, a return spring 264 is attached,
One end of a coil spring 266 is attached to the hole 265 at the upper end of the arm 260. The other end of the coil spring 266 is fixed to the wire 211 with a screw 267. Support plate 262
Is fixed to the base 268 as shown in FIG. The assembled state is as shown in FIG. 37 (a) or (c), and the claw 256 provided on the button 254 projects outside the outer diameter of the hollow shaft connection 257. In the side wall 269 of the base 268, a notch groove 270 for the second operation position and a notch groove 271 for the first operation position are provided.
37, so that the claw 256 provided on the button 254 is locked in the cutout groove 270 for the second operation position or the cutout groove 271 for the first operation position [FIG. b)). Note that one support plate 2 of the shaft 259
A claw 218 is provided on a portion facing the second claw 62.
As shown best in FIG. 30B, 18 is accommodated in an arc-shaped notch groove 219 provided on one support plate 262 for restricting the rotation range, and the rotation range of the shaft 262 is previously determined. Stipulated. That is, the right end of the notch groove 219 is the second operation position X, which is the release area of the belt drum, and the left end of the notch groove 219 is the first operation position Y, which is the lock area of the belt drum. Is movable in this range.

In the operation unit having such a structure, the button 254 is pushed in the direction of the arrow P in order to shift from the second operation position X to the first operation position Y. Then, the coil spring 2
53 is compressed so that the pawl 256 comes off the second operating position cutout groove 270. In this state, the hollow operation knob 251 is rotated in the direction of the arrow Q to engage the claw 256 with the first operation position cutout groove 271 and release the button 254. By this operation, the arm 260 rotates, and the wire 211 is held in a tightly locked state. In order to return to the second operation position X, the button 254 is pushed in, the claw 256 is disengaged from the first operation position notch groove 271, and the hollow operation knob 251 is rotated in the direction opposite to the Q arrow direction. Then, an operation of guiding the claw 256 to the second operation position cutout groove 270 is performed. Thus, button 254
The device does not rotate unless it is pushed in once to prevent erroneous operation.

FIGS. 38 to 40 show a sixth modification of the operation unit C of the first embodiment. The sixth modification is the operation knob 278.
38 is an assembly diagram of an operation unit, FIG. 39 is an explanatory diagram of an operation knob, and FIG. 40 is an operation explanatory diagram. In FIG. 38, a hollow shaft connection 275 is provided on one support plate 273 erected on the base 272, and the other support plate 27
A shaft 276 integral with the hollow shaft connection 275 is supported on the top 4, and is held down from above by a shaft holder 277. In addition, hollow shaft connection 2
An opening 275 ′ for projecting a locking plate 279, which will be described later, is formed at the left end of the hollow 75, and an operation knob 278 is fixed at the left end of the hollow shaft connection 275. A claw 218 is provided on a portion of the shaft 276 facing one of the support plates 274, and this claw 218 is provided in FIG.
As best shown in (b), the rotation range of the shaft 262 is set in advance in an arc-shaped notch groove 219 provided on one support plate 274 for restricting the rotation range. That is, the right end of the notch groove 219 is the second operation position X, which is the release area of the belt drum, and the left end of the notch groove 219 is the first operation position Y, which is the lock area of the belt drum. Is movable in this range. The operation knob 278 has an opening 278 'at the top, and a button 280 is provided in the opening 278'.
The button 280 is inserted from the inside of the
Button 2 so that it does not come off from the inside of the operation knob 278.
A flange 280 '(FIG. 39 (a)) is formed on the bottom side of 80. Locking plate 279 integrated with button 280
Are formed. Then, when the button 280 is fitted from the inside of the operation knob 278 to the outside, the locking plate 279 is connected to the opening 27 at the left end of the hollow shaft connection 275.
It protrudes from 5 '. As described later, the button 280 and the locking plate 279 are connected to the coil spring 286 (FIG. 39).
The button 280 is pushed upward by (a)).
And the locking plate 279 always project from the openings 278 'and 275', and when the button 280 is pressed, the locking plate 279
Immerse yourself in 75 '. Further, a first operating position notch groove 282 and a second operating position notch groove 283 are formed in the left end wall 281 of the shaft retainer 277, and the locking plate 27 is provided.
Reference numeral 9 denotes a structure that can be engaged with either the first operation position notch groove 282 or the second operation position notch groove 283. The right end of the shaft 276 has an arm 28
4 is fixed by screws 285. One end of a coil spring 210 is attached to a pin 209 provided at the tip of the arm 284, and the other end of the coil spring 210 is connected to a wire 21.
One end is attached. The wire 211 is guided to the outside through a guide base 214 fitted between the side walls 212 of the shaft retainer 277. The guide base 214 is covered and fixed by the cover 213.

FIG. 39 (a) shows the internal structure of the operation knob 278. As shown, the button 280 and the locking plate 279 integral with the button 280
86 is pushed upward. This operation knob 27
The hollow shaft connection 275 shown in a reduced scale in FIG. FIG. 39 (c)
The operating knob 278, the button 280, and the locking plate 279 are connected to each other, the first operating position notch groove 282 provided on the left end wall 281 of the shaft retainer 277, and the second operating position. Notch groove 283 and support plate 2
The correlation with 73 is shown. Next, the operation operation will be described. From the second operation position X to the first operation position Y [FIG.
0 (c)], first, the button 28
Press 0. Then, as shown in FIG. 40A, the locking plate 279 comes off the second notch groove 283,
When the operation knob 278 is rotated in the direction of the arrow Q and the button 280 is released when the locking plate 279 reaches the first notch groove 282, the locking plate 279 is turned into the first notch groove 282. And moves to the first operation position Y,
The rotation of the belt drum is stopped by tightening a wire (not shown). To shift to the second operation position X and release the stop of the rotation of the drum, the reverse operation is performed. As described above, the configuration is such that the button 280 does not rotate unless it is pressed once, thereby preventing erroneous operation. FIG. 40D shows an example in which an unlocking button is provided on the side of the operation knob 278, and FIG. 40E shows an example in which the shape of the operation knob 278 is changed.

FIG. 41 shows the operation unit C of the first embodiment.
A modified example will be described. In the above modified example, the button is provided in the operation knob (although the mounting position of the button is different between the center and the side),
The seventh modification is different in that the button 291 is of a type provided separately from the operation knob 288. FIG.
8 is an assembly diagram of the operation unit, FIG. 39 is an explanatory diagram of the operation knob, and FIG. 40 is an operation explanatory diagram. In the case of this example, a first operating position notch groove 289 and a second operating position notch groove 290 are provided near the connection end of the operation knob 288 of the shaft 287, and buttons are provided in the notch grooves 289, 290. The lock plate 292 operated at 291 is engaged with the shaft 2
87 is a structure for restricting rotation. The locking plate 292 is always pressed by the coil spring 293 and any one of the notches 2
89,290. To release the engagement, the user operates the button 291 to move the locking plate. At this time, the coil spring 293 is compressed and stored. FIG. 41 (a),
FIGS. 41B and 41C show the second operation position X in which the locking plate 292 is engaged with the second operation position cutout groove 290. To shift from the second operation position X to the first operation position Y, the button 291 is pushed rightward as shown in FIG. Then, FIG. 41
Since the locking plate 292 is disengaged from the second operating position cut groove 290 as shown in FIG.
7 is rotated and guided to the first operation position Y. When the user releases the button 291 in this state, as shown in FIG. 41 (d), the locking plate 292 becomes the first operation position notch groove 289.
, And the wire (not shown) is tensioned to hold the shaft 287 in a state where the belt drum is locked. To return the belt drum to the second operation position X in which the lock of the belt drum has been released, the operation knob 28 is pressed while the button 291 is pressed to the right.
8 is rotated in the direction opposite to the direction of the arrow Q to stop at the second operation position X, and the locking plate 292 is engaged with the cut groove 290 for the second operation position. As described above, the configuration is such that the button 291 is not turned unless it is pressed once, thereby preventing erroneous operation. Although an illustration of the right side of the shaft 287 is omitted, an arm is provided at the right end of the shaft 287, a coil spring is locked to the arm, and a wire for operating the manual lock portion B in FIG. 1 is locked to the coil spring. This is the same as FIG.

FIG. 42 shows the operation section C of the first embodiment.
A modified example will be described. While the above first to seventh modifications all use a shaft to rotate the shaft to pull the wire, the eighth modification does not rotate and tension the wire, The wire is pulled directly and slid from the first to the second operating position or vice versa and held in the first or the second operating position, and in principle falls within the category of FIG. Is what you enter. 42 differs from that of FIG. 5 in that the locking mechanism is a key type in which a locking knob 38 is provided with a locking projection 38a, whereas FIG. This is a groove type in which 296 is hooked into the through groove 295. FIG. 42A is a front perspective view of the operation unit. A U-shaped through groove 295 is provided on the front surface of the frame body 294, and the right end is the second operation position X and the left end is the first operation position Y. A rod-shaped operation knob 296 protrudes from the through groove 295. The base of the operation knob 296 is the moving body 29
7 is fixed. The moving body 297 includes a sliding spacer 299 provided on a coil spring 298 held by the frame body 294.
And is constantly urged upward. The other end of the coil spring 210 having one end fixed to the wire 211 is attached to the moving body 297. FIG.
FIG. 42 (b) is a longitudinal sectional view, and FIG. 42 (c) is a rear perspective view.
To move the operation knob 296 from the second operation position X to the first operation position Y, move the operation knob 296 to the left while pushing it downward, and release the left end of the through groove 295. The operation knob 296 is pushed upward by the pressure of the coil spring 298 and pulls the wire 211 to the left to tension it, thereby holding the belt drum in a locked state. In order to shift from the first operation position Y to the second operation position X, the reverse operation is performed.

FIG. 43 shows a ninth operation section C of the first embodiment.
A modification is shown. This modification also belongs to the same category as FIG. 43, and directly pulls and slides the wire 211. FIGS. 43 (a), (b),
In (c), a moving body 301 that can move left and right is provided on the frame 300. This moving object 301 is
An operation knob 302 is provided upright at the left end, a support plate 303 is provided upright at the right end, and a through hole 304 is provided at the center. A through hole 305 is provided in the vicinity of the left end of the frame 300, and a locking plate 306 supported by spring pressure protrudes.
One end of a return spring 308 is attached to a support hole 307 provided at the right end of the moving body 301, and the other end of the return spring 308 is connected to a support hole 309 provided at the right end of the frame 300.
The moving body 301 is always pulled to the right end side of the frame 300. FIGS. 43 (a) and 43 (b)
The operation knob 302 is in the second operation position, and shows a state in which the lock of the belt drum is released. When shifting from this state to the first operation position, first, as shown in FIG. 43B, the locking plate 306 is pushed downward, and the operation knob 302 is operated to move the moving body 301 to the left side. When the moving body 3 is moved, the through-hole 304 reaches above the locking plate 306, and the locking plate 306 protrudes upward through the through-hole 304 and
Lock 01. Then, the wire 211 is pulled to the left and is held in a state where the belt drum is locked. When shifting to the second operation position, when the locking plate 306 in the state shown in FIG. 43C is pushed downward and the movable body 301 is shifted to the right, the movable body 301 is pulled by the return spring 308.
Is moved to the right, and the locking plate 306 projects to the left of the operation knob 302 to hold it at the second operation position.

[0067]

The retractor described above and the child seat to which the retractor is applied have the following various effects. (1) The belt for holding the infant sitting in the child seat can be set to a desired length in advance and locked, so that the infant can be prevented from slipping out of the belt. (2) Even in an emergency, since the belt is not pulled out more than the manually set belt length, the safety of the infant is improved. (3) Since the emergency lock and the manual belt lock can be performed, multiple functions can be realized, and the usability of the child seat to which the retractor is applied is improved. (4) Since the emergency lock unit or the manual lock unit that constitutes the retractor can be separated from the operation unit that operates the manual lock unit, it is possible to improve the design flexibility and the usability of the child seat. (5) Since the belt can be locked also in the belt withdrawal path, the usability of the child seat is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a retractor of the present invention.

FIG. 2 is a perspective view illustrating a configuration of an operation unit.

FIG. 3 is a sectional view of a main part showing a configuration of an operation.

FIG. 4 is a perspective view of a main part showing a configuration of an operation unit.

FIG. 5 is a perspective view showing another configuration example of the operation unit.

FIG. 6 is a cross-sectional view illustrating a configuration of an operation unit.

FIG. 7 is a perspective view of a retractor showing a second embodiment of the present invention.

FIG. 8 is a perspective view illustrating a configuration of an operation unit.

FIG. 9 is a perspective view of a retractor showing a third embodiment of the present invention.

FIG. 10 is a perspective view illustrating a configuration of an operation unit.

FIG. 11 is a perspective view of a retractor showing a fourth embodiment of the present invention.

FIG. 12 is a perspective view illustrating a configuration of an operation unit.

FIG. 13 is a perspective view of a retractor showing a fifth embodiment of the present invention.

FIG. 14 is a perspective view of a retractor showing a sixth embodiment of the present invention.

FIG. 15 is a sectional view showing a configuration of a retractor.

FIG. 16 is a perspective view of a retractor showing a seventh embodiment of the present invention.

FIG. 17 is a cross-sectional view illustrating a configuration of a retractor.

FIG. 18 is a perspective view of a retractor showing an eighth embodiment of the present invention.

FIG. 19 is a perspective view illustrating a configuration of a lock mechanism.

FIG. 20 is a cross-sectional view illustrating a configuration of a lock mechanism.

FIG. 21 is a perspective view of a child seat according to a ninth embodiment of the present invention.

FIG. 22 is a cross-sectional view illustrating a configuration of a child seat.

FIG. 23 is a cross-sectional view showing a configuration of a child seat.

FIG. 24 is a perspective view of a child seat showing a tenth embodiment of the present invention.

FIG. 25 is a cross-sectional view illustrating a configuration of a child seat.

FIG. 26 is a perspective view showing a configuration of a child seat.

FIG. 27 is a perspective view of a belt adjusting bracket according to an eleventh embodiment of the present invention.

FIG. 28 is a cross-sectional view of a main part showing a length adjustment of the belt.

FIG. 29 is an explanatory diagram of a first modified example of the operation unit C of the first embodiment.

30 is an explanatory diagram of the operation unit shown in FIG. 29. (A)
FIG. 4 is a longitudinal sectional view, and FIG. 4B is an explanatory view showing an example of a cutout groove.

FIG. 31 is a diagram illustrating the operation of a wire-type operation unit with a rotating arm.

FIG. 32 is an explanatory diagram showing a relationship between an operation knob and a button in a first modification of the operation unit C of the first embodiment. (A) is an explanatory view of the operation relationship of the operation knob button at the first operation position, and (b) is an explanatory diagram of the first and second operation position relationships.

FIG. 33 is an explanatory diagram of a second modification of the operation unit C according to the first embodiment of the wire-type operation unit. (A) is a partially longitudinal explanatory view showing a state at a second operation position, (b) is a partially longitudinal explanatory view showing a process of shifting to a first operation position, and (c) is a first and a second explanatory view. FIG. 4 is an explanatory diagram showing an operation positional relationship of FIG.

FIG. 34 is an explanatory diagram illustrating a third modification of the operation unit C according to the first embodiment of the wire-type operation unit. (A) is a partially longitudinal explanatory view showing a state in a second operation position, (b) is a partially longitudinal explanatory view showing a process of shifting to a first operation position,
(C) is an explanatory view showing first and second operation positional relationships.

FIG. 35 is an explanatory diagram illustrating a fourth modification of the operation unit C according to the first embodiment of the wire-type operation unit. (A) is a partially longitudinal explanatory view showing a state in a second operation position, (b) is an explanatory view showing an example of a cutout groove, and (c) is an illustration showing a first and second operation positional relationship. FIG.

FIG. 36 is an exploded view showing a fifth modification of the operation unit C of the first embodiment of the wire-type operation unit.

FIG. 37 is an explanatory view of the modification shown in FIG. 36; (A)
Is a partially longitudinal explanatory view showing a state in a second operation position,
(B) is an explanatory view showing an example of a notch groove, (c) is the first,
It is a perspective view showing a 2nd operation positional relationship.

FIG. 38 is an exploded view showing a sixth modification of the operation unit C of the first embodiment of the wire-type operation unit.

FIG. 39 is an explanatory diagram of the modification shown in FIG. 38; (A)
FIG. 4 is an internal structure diagram of an operation knob, FIG. 4B is a perspective view showing an example of connecting a hollow shaft, and FIG. 4C is an explanatory diagram showing a correlation between a locking plate and both cutout grooves.

FIG. 40 is an explanatory diagram of the modified example shown in FIG. 38. (A)
FIG. 3 is an explanatory diagram of a transition process from a second operation position to a first operation position, FIG. 4B is an explanatory diagram showing a state of transition to a first operation position, and FIG. FIG. 7D is an explanatory diagram showing the relationship, FIG. 7D is an explanatory diagram showing an example of an operation knob provided with a button on the side, and FIG. 7E is an explanatory diagram showing an example in which the shape of the operation knob is modified.

FIG. 41 is an explanatory diagram illustrating a seventh modification of the operation unit C according to the first embodiment of the wire-type operation unit. (A) is a perspective view showing a state in a second operation position, (b) is an explanatory diagram showing a first and second operation position relationship, and (c) is a case where a shaft is in a second operation position. FIG. 7D is an explanatory diagram when the shaft is at a first operation position.

FIG. 42 is an explanatory diagram illustrating an eighth modification of the operation unit C according to the first embodiment of the wire-type operation unit. (A) is a front perspective view, (b) is a partially longitudinal explanatory view, and (c) is a rear perspective view.

FIG. 43 is an explanatory diagram showing a ninth modification example of the operation unit C of the first embodiment of the wire-type operation unit. (A) is a perspective view,
(B) is a partially longitudinal explanatory view showing a transition process from a second operation position to a first operation position, and (c) is a partially longitudinal explanatory view showing a state of transition to a first operation state.

FIG. 44 is a front perspective view showing a conventional child seat.

FIG. 45 is a rear perspective view showing a conventional child seat.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Retractor 2, 21 Frame 3 Length adjustment belt 4 Gear 5 Locking claw 6 Drive plate 7 Belt adjustment bracket 11, 13, 23 Shaft 12, 22 Rotating plate 14, 24, 25, 29, 39, 42, 43 Spring 15 Wire 26, 37 Operation knob 28, 38 Lock knob 31 Locking projection 32 Locking hole 201, 220, 230, 245, 268, 272 Base 202, 222, 232, 242, 259, 276, 2
87 shaft 205, 277 shaft holder 207, 223, 234, 243, 278, 288, 2
96, 302 Operation knob 208, 260, 284 Arm 210 Coil spring 211 Wire 215, 248, 254, 280, 291 Button 217, 224, 236, 250, 253, 266, 2
86, 293, 298 Coil springs 218, 225, 239, 244, 256 Claws 219, 228, 229, 240, 241, 247, 2
70, 271, 282, 283, 289, 290 Notch groove 235 Pressing plate 236 Coil spring 237 Stopping 238 Selection plate 255 Stopper 257, 275 Connecting hollow shaft 264, 308 Return spring 279, 292, 306 Locking plate 294, 300 Frame 297, 301 Moving body 299 Sliding spacer A Emergency lock B Manual lock C Operation

Claims (5)

[Claims] 1. A child seat comprising: a child seat main body; a belt for restraining an infant placed on the child seat main body; and a retractor capable of storing and pulling out the belt. And a control member for switching the lock member between a locked state and an unlocked state as desired. 2. The child seat according to claim 1, wherein the lock member regulates rotation of a drum around which the seat belt is wound. 3. The child seat according to claim 1, wherein the lock member holds the belt. 4. The belt according to claim 1, wherein the belt is provided with a belt adjusting member for adjusting a length of the belt, and a lock member fixes the belt adjusting member. child seat. 5. The child seat according to claim 1, wherein the operation member disposed on the child seat main body is out of the reach of a baby placed on the child seat main body.