JPS595397Y2 - Locking chair locking device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a locking device for a rocking chair.

As shown in FIGS. 1 and 2, a rocking chair is known in the art, as shown in FIGS. The spring material 4 is pivotably supported via a spring material 4 and is elastically deformed by moving the body back and forth with respect to a seat (not shown) provided on the seat tube 3, and the spring material 4 undergoes elastic deformation and returns to a state where energy is stored due to the elastic deformation. The seat pipe is constructed so that it can be comfortably rocked by force, and when you want to stop this locking, you operate the attached locking means, and this allows it to be used in the same way as a normal chair. It is now possible to obtain it.

By the way, the already known locking means has a configuration in which locking holes are provided on each side of the seat and the seat tube, facing each other, and a locking rod is inserted into both holes to lock the seat. It has become.

However, with the above configuration, in order to make it easier to insert the lock rod, the hole diameter of the seat pipe into which the lock rod is inserted must be made larger than the hole diameter of the seat base, so that it is difficult to insert the lock rod into the seat tube. However, if the centers of both holes are shifted even slightly, it becomes difficult to insert and remove the lock rod, making it difficult to operate.For this reason, high precision is required when machining both holes. There are also manufacturing defects, such as:

The present invention aims to overcome the above-mentioned drawbacks of the conventional art, and will be described in detail below with reference to the drawings showing embodiments of the present invention.

The rocking chair is constructed as described above, and in order for the seat (not shown) to lock, the seat base 2 becomes the fixed side, whereas the seat pipe 3 becomes the movable side, so the locking device 5 , are provided in relation to the seat 2 and the seat tube 3 as follows.

That is, as shown in FIGS. 1 and 2, the locking device 5 has a long elongated hole 6 formed in the side plate 3a of the seat tube 3 in the front-rear direction substantially perpendicular to the direction in which the seat tube 3 is swung up and down. A lock lever 7 is movably supported by penetrating the long hole 6 in the seat tube 3 so as to be slidable in the longitudinal direction thereof, and furthermore, the lock lever 7 is attached to the bracket 2a of the seat 2. A lock lever insertion hole 8 is formed therethrough, and a lock is provided at the lower edge of one side of the opening 8 so that the locked state can be obtained by moving the lock lever 7 to one side along the elongated hole 6. Part 9
is formed at an angle.

According to the embodiment shown in FIGS. 1 and 2, the lock lever 7 has a hole 10 formed in the side plate 3b on the other side of the seat tube 3, and one end thereof is inserted through the hole 10. A retaining ring 11 etc. is fixed to the protruding end and pivotally supported so that it does not come off.
It is supported on the seat tube 2 so that it can be rotated in the front-rear direction within the effective length of the elongated hole 6.

Further, the lock lever insertion hole 8 of the seat 2 is a vertically elongated hole portion 8.
a and a horizontally elongated hole 8b that is long in the front-rear direction.As shown by the solid line in FIG. 2, when the lock lever 7 is moved to the right, the vertically elongated hole 8a, the seat tube 3 can be locked, and the lock lever 7 can be moved leftward in the drawing within the elongated hole 6 by the horizontally elongated hole portion 8b.

The lock portion 9 is formed at the lower edge of the horizontally elongated hole portion 8b, and its inclination is inclined downward at an arbitrary oblique angle from the front end to the rear end with respect to the length direction of the elongated hole 6. By moving the lock lever 7 from the position shown by the solid line in the figure to the left along the elongated hole 6 as shown by the two-dot broken line, the lock lever 7 rises up onto the lock part 9 and locks into the corresponding position. It is clamped and fixed between the lock portion 9 and the upper edge of the elongated hole 6, thereby stopping the rocking of the seat tube 3.

In other words, since the elongated hole 6 is provided in a range in which the lock lever 7 can slide, the upper edge of the elongated hole 6 and the inclined shape are formed so that the lock lever 7 can be moved forward as described above. The lock lever 7 is inserted between the lock parts 9, and therefore, this fixed (locked) state can be easily released by moving the lock lever 7 back along the inclined lock part 9. can.

Figures 3 and 4 show other embodiments of the present invention.
In the above embodiment, the lock lever 7 is supported on the seat tube 3 in a cantilever manner, and the elongated hole 6, the lock lever insertion hole 8, and the lock portion 9 are provided only on one side of the seat 2 and the seat tube 3. However, in this embodiment, the lock lever 7 is pivotally supported approximately at the center of the seat tube 3, while the elongated hole 6, the lock lever insertion hole 8, and the lock portion 9 are connected to the seat base. 2 and the seat pipe 3 in a symmetrical arrangement on both the left and right sides, and when the lock lever 7 is rotated about its pivot portion 12 as a fulcrum as shown in FIG. It is configured so that it is locked in two places when it is in the father's day position.

Further, according to the present invention, in addition to the above-mentioned embodiment, the lock lever 7 is pivoted as shown in FIG. When the lock lever 7 is in the position shown in Fig. 3, it can be locked, and by moving it to the position A or C, it can be locked. 90 It is also possible to configure it so that it can be locked in any position.

As described above, in the locking device for a rocking chair according to the present invention, when the lock lever 7 supported by penetrating the long hole 6 of the seat tube 3 is moved along the long hole 6, the lock lever 7 corresponds to the long hole 6. A lock lever insertion hole 8 provided on the side of the seat base 2
The lock lever 7 engages with the lock portion 9 of the seat tube 3, and the seat tube 3 is locked.Since the lock portion 9 is formed to be inclined so that the lock lever 7 rises, the movement of the lever 7 stops until it reaches the position. It can be locked without rattling when moved.

In addition, even if the positional relationship between the seat tube 3 and the seat base 2 is slightly misaligned, the locking can be performed easily and reliably. Since the dimensional tolerance for manufacturing can be increased by forming it in a straight line, it can be manufactured easily and at low cost.

[Brief explanation of drawings]

Fig. 1 is a plan view showing a locking device for a rocking chair according to the present invention, Fig. 2 is a side view of the device, Fig. 3 is a cross-sectional plan view showing another embodiment of the device, and Fig. 4 A and B are a right side view of the main part and a left side view of the main part in FIG. 3. 1... Axis, 2... Base, 3...
・Seat pipe, 4... Spring material, 6... Long hole,
7...Lock lever 18...Lock lever insertion hole, 9...Lock part.

Claims (2)

[Scope of utility model registration request] (1) In a rocking chair in which a seat pipe is arranged on a seat supported on a shaft so that the seat pipe can be rocked by applying a return force from a spring material, the seat pipe has a front and rear direction substantially perpendicular to the rocking direction. The lock lever is inserted through the long hole provided in the direction.
The lock lever is movably supported, and the lock lever penetrates a lock lever insertion hole formed in the seat so that the locking of the seat pipe can be freely engaged and detached by the movement operation of the lock lever, and the lock lever is inserted under the insertion hole. A rocking chair in which the edge has a lock part inclined at an arbitrary oblique angle with respect to the length direction of the elongated hole so as to sandwich the lock lever between the elongated hole and the lock lever when the lock lever is locked. locking device. (2) The locking device for a rocking chair according to claim 1, wherein the elongated hole, the lock lever insertion hole, and the lock portion are formed on one side of the seat and the seat tube. (3) The elongated hole, the lock lever insertion hole, and the lock part are arranged symmetrically on the left and right sides of the seat and the seat tube so that they are locked by both sides of the lock lever, which is pivoted approximately at the center of the seat tube. A locking device for a rocking chair according to claim 1, which is formed by providing a locking device for a rocking chair.