JPH0428265Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an auxiliary seat for infants that is used by being placed on a car seat.

[Prior art and its problems]

Infants who are too young to sit in a car seat by themselves, or infants who are young enough to sit in a car seat by themselves but cannot freely respond to the vibrations and shocks of a moving car, are placed in a car seat alone. Sitting down is extremely dangerous.

In order to prevent such risks, it has become common practice to attach infant booster seats to automobile seats, which have a structure suitable for restraining infants.

Such auxiliary seats for automobiles are generally known as "car seats" or the like.

The structure of these karshitos is, for example,
As is known from Publication No. 2197, etc., two belts for restraining an infant are pulled out from the backrest of the auxiliary seat main body, and then held while holding both shoulders of the infant. The structure is such that the tips are gathered at the upper end of a mechanism that forms part of a pair of buckle mechanisms, and then the lower end of the buckle is fitted and locked to the other buckle mechanism attached to the seat floor. , the entire belt mechanism is constructed as a fixed structure that cannot be disassembled.

Therefore, when wearing the belt, the infant sitting in the auxiliary seat must wear the fixed belts (two belts) that include the aforementioned buckle mechanism over the head, and cannot be put on or taken off. It was extremely inconvenient.

In addition, in the case of the above structure, the two belts that hold down the infant's shoulders are combined into one buckle mechanism at the infant's front abdomen, so when performing the locking operation, the infant's front abdomen is This has the disadvantage that the wearer, the infant, is likely to experience discomfort due to the operation.

Furthermore, in these structures, the buckle mechanism is attached to a part of the belt, so
Economic disadvantages have also been pointed out, such as the manufacturing process being complicated and the number of parts used, which tends to increase manufacturing costs.

[Purpose of invention]

In view of the above-mentioned circumstances, the present invention attempts to deal with these problems.

That is, the present invention aims to provide an auxiliary seat for infants that is equipped with an extremely simple attachment means and removal means that eliminates the need to put a child restraint belt over the head.

Another object of the present invention is to provide an in-vehicle infant auxiliary seat that can be configured with an extremely small number of required parts.

[Key points of the idea]

The present invention integrally forms a seat floor part and a back rest part, and extends two child restraint belts from the back part to the seat part so as to be able to be wound up and let out freely. This is an auxiliary seat for infants in which the longitudinal center portion of the restraint belt is removably engaged with a locking groove of a locking mechanism installed at the center of the front end of the seat floor so as to be able to rise and fall freely. The locking mechanism for locking a belt for use is formed in a front T-shape with a wide pad at the upper end, and a vertically long belt locking groove is formed in this pad. The key point of the invention is an auxiliary child seat for vehicles, which has locking collars formed at both ends of the seat to prevent the belt from coming off.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

The auxiliary seat, generally indicated by A, has a main body consisting of a seat floor part 1 and a backrest part 2 made of hard synthetic resin, etc., and a suitable material such as a sponge sheet on the surface that the infant's body comes into contact with. It has a structure in which a lining material 3 made of an elastic cushion material is attached.

The structure of the auxiliary seat body described above is a known one, and a tilt angle adjustment mechanism B is provided on the bottom surface of the auxiliary seat body to change the sitting height and tilt angle as necessary.
is installed.

4, 4 is a child restraint belt attached to extend from the backrest part 2 to the seat floor part 1, and a retractor mechanism (not shown) attached to the bottom surface of the main body.
The structure is such that winding and unwinding can be performed freely.

The above child restraint belts 4, 4 are pulled out from a retractor (not shown), and
After pulling it up from the back side of the back rest part 2 and pulling it out from the back side to the front side of the insertion holes 21...21 that are bored in two rows and in several stages in the back rest part 2,
They are attached to both sides of the seat floor 1, respectively.

In addition, the child restraint belts 4, 4 can be used not only when two belts are used separately on the left and right sides, but also when one long belt is used with two rows of insertion holes 21...21 formed in the backrest part. Pull it out from the row on one side and pass it in the direction of the seat floor part 1, and then pass the tip of it through the bottom surface of the seat floor part 1 and pull it out to the surface of the seat floor part 1 on the other side, and then insert it into the other row of the backrest part. Hole 21
It may also be configured such that the belt is inserted through the belt and pulled out to the back side, and the tip of the pulled-out belt is connected to a retractor (not shown).

The retractor mechanism (not shown) is also equipped with an emergency lock mechanism (ELR mechanism) that is activated when an emergency situation such as a sudden stop of the vehicle occurs.

Reference numeral 5 denotes a locking mechanism for a belt attached to the front surface of the seat floor 1 so as to be able to rise and fall freely.

The belt locking mechanism 5 is configured in a front T-shape in which a wide pad 52 is integrally attached to the upper surface of a shaft 51 for raising and lowering.

The pad 52 attached to the upper end of the shaft 51 is made of hard synthetic resin or the like and is formed as a wide plate with an appropriate thickness. belt 4,4
A belt locking groove 53 consisting of a concave groove for locking the intermediate portion of the belt is formed vertically.

Reference numerals 53' and 53' are locking collars formed on both sides of the belt locking groove 53, and by folding both ends of the locking groove 53 into a C-shaped cross section, the belt can be locked in the locking groove 53. This prevents the intermediate portions of the belts 4, 4 for restraining children from suddenly separating from the locking grooves 53. (See FIGS. 3 and 4) In principle, the shape of the locking pad 52 is formed so that it is integrated with the shaft 51 and has a substantially T-shape from the front as illustrated in FIG. As illustrated in FIG. 2, the belt folding grooves 54, 54 can be formed by cutting both sides of the lower end of the pad 52 slightly inward in an 8-shape, so that the belts 4, 4 can be used for restraining children when worn. is folded back in a natural state, giving the infant a comfortable and excellent feeling of use.

Note that the shaft 51 constituting the belt locking mechanism 5
The locking pad 52 is constructed by inserting a reinforcing metal plate inside to maintain its strength, and the surface is covered with an elastic material such as a sponge to give a soft feeling to infants. It is integrally covered.

The lower end of the shaft 51 is pivoted near the tip of the seat floor 1 so that it can rise and fall freely, and its swing angle (levitation angle) can be freely set to a desired angle as necessary. . That is, it is determined whether to raise the shaft 51 to a position where the surface of the pad 52 contacts the infant's abdomen, or to stop the raising operation at a position slightly before the position where the surface of the pad 52 contacts the infant's abdomen. Alternatively, the angle at which the locking mechanism 5 is folded down may be freely set.

In addition, the belt insertion holes 21...21 formed in the backrest part 2 are arranged above the interval between the insertion holes 21...21 located below, so that the feeling of belt wearing for the infant is always constant. The insertion holes 21 . . . 21 are bored so that the distance between them is slightly wider.

In this way, by gradually widening the distance between the belt insertion holes 21...21 as you go upwards, it is possible to change the belt insertion position upward for large-sized infants (or as the child gets older). Even if the infant is restrained properly, the belt always matches the width of the infant's shoulders so that the infant can be restrained appropriately.

[Effect of idea]

The effects of the present invention configured as described above are as follows.

(1) The child restraint belts 4, 4 are attached to the backrest 2 in advance.
Since the belt is extended from the belt to the seat floor part 1 in a flexible manner (allowing it to be freely extended and rolled up), in use, the infant sits on the seat floor part 1 to which the belt is passed, and then the child restraint belts 4, 4 are inserted. It can be put on with an extremely simple operation, such as lifting it from both sides and securing it to both shoulders of the infant in the same way as when attaching the shoulder strap of a school bag.

(2) Two restraint belts 4 that are secured to hold the infant's shoulders and then pulled out to the front.
4 is constructed so that the intermediate portion in the length direction is locked to the locking mechanism 5 of the belt that is attached to the front of the infant so that it can rise and fall freely, so that the two restraining belts 4, 4 can be placed at the front position of the infant's abdomen. It has the excellent feature that it is possible to maintain a locked state in which the harnesses are pulled together toward the center and arranged in a front H shape, and it is extremely easy to obtain the most secure full harness locked state. are doing.

(3) The means for locking the child restraint belts 4, 4 to the belt locking mechanism 5 is to raise the locking mechanism 5 in front of the child and then use the belt locking groove formed in the center of the pad 52. This can be done by an extremely simple operation of locking the center portions of the belts 4, 4 with the locking groove 53, and locking flanges 53', 53' are formed on both sides of the locking groove 53 to prevent detachment. Therefore, there is no possibility that the child restraining belts 4, 4, which are fitted and locked in the locking grooves 53, will come off.

(4) The child restraint belts 4, 4 can be removed very easily by performing the operations described in the previous section in the reverse order. This makes the operation much easier than with conventional structures.

(5) The child restraint belts 4, 4 and the belt locking mechanism 5 are constructed separately, and a buckle is not used in the part that contacts the child's abdomen, which causes discomfort to the child when worn. Never.

(6) Since the use of the buckle mechanism is omitted and buckles are not used for the child restraint belts 4, 4,
The process of sewing the buckle to the belt, which was done with conventional products, can be completely omitted, and the belt locking mechanism can also be made into a simple structure, so compared to the buckle mechanism. As a result, the number of parts used can be reduced, and manufacturing costs can be reduced.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a perspective view showing the state of use, Figure 2 is a perspective view showing a modified example in which a belt folding groove is formed in the pad, Figure 3 is a plan view showing a locking groove of the pad, and Figure 4
The figure is a plan view showing a modified example of the locking groove of the pad.
The figure is a perspective view of the state shown in Figure 1 taken from the back side, Figure 6 is a perspective view showing an example of an automobile seat installed with the auxiliary seat surface facing forward, and Figure 7 is a perspective view of the state shown in Figure 1 with the auxiliary seat surface facing forward. FIG. 3 is a perspective view showing an example in which the device is mounted so as to face rearward (in a direction facing the driver). A...Auxiliary seat, B...Inclination angle adjustment mechanism, 1
. . . Seat floor portion, 2 . . . Backrest portion, 21 . . . Restraint belt insertion hole, 3 .
Shaft grip, 52...pad, 53...belt locking groove, 54...belt folding groove.

Claims (1)

[Scope of utility model registration request] A seat floor part and a back rest part are integrally formed, and two child restraint belts are freely wound up and let out from the back rest part to the seat floor part, and the child restraint belts are passed from the back rest part to the seat floor part. This is an auxiliary seat for infants whose central portion in the length direction is removably engaged with a locking groove of a locking mechanism that is attached to the center of the front end of the seat floor so as to be able to rise and fall freely. The above-mentioned locking mechanism for locking has an upper end formed in a front T-shape with a wide pad, and a vertically long belt locking groove is formed in this pad, and both ends of the belt locking groove have grooves. An auxiliary infant seat for use in a vehicle is formed with a locking flange that prevents a belt from coming off.