JPS6017149Y2 - sofa bed - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sofa-pet that can serve both as a pet and a sofa.

In the conventional sofa-pet joint, the bed floor consists of a movable floor part and a fixed floor part, and in the sofa form, the movable floor is raised by an appropriate drive means or by manual operation, and the backrest part and In addition, it is common to use a fixed floor as a seat.

On the other hand, as shown in FIG. 1, the bed floor part 2 installed on the base 1 is made up of three parts consisting of a backrest part 3, a seat part 4, and a leg support part 5 in the form of a sofa. As shown in Fig. 2, the structure in which the seat part 4 and the leg rest part 5 are raised at the connecting part in the sofa form allows the user to take an extremely comfortable resting position in the sofa form. There is an advantage.

However, the sofa-pet shown in FIGS. 1 and 2 requires displacing three parts 3, 4, and 5 of the front part of the bed floor 2 in order to change the form between the pet and the sofa. For example, as shown in Japanese Patent Application Laid-Open No. 57-1310, an independent drive mechanism or interlocking means must be provided for each displacement part to automatically change the shape, resulting in a complicated structure. This results in an increase in cost, and also occupies a large area due to the installation of the drive mechanism, so there is a problem that the air within the base cannot be used effectively for other purposes.

The present invention was made to improve the above-mentioned drawbacks, and in the sofa-pet of the type shown in FIGS.
It is possible to move up and down the connecting part of the base 1 in conjunction with a simple drive mechanism, and by installing this drive mechanism on one side of the base 1, the surplus space inside the base 1 can be saved. It can be used as a storage area for various items such as clothing, blankets, and sheets.

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

As shown in FIG. 3, the bed floor part 2 consists of three parts: a backrest part 3, a seat part 4, and a leg rest part 5, which are divided in a direction perpendicular to its longitudinal direction. The portions 4 are frame end portions 3a that protrude from the interior at corresponding positions on both sides, as shown in FIG.

3a and 4a, 4a are pivotally connected, and at these connecting parts 6a, 6a, the base 1 side plate part 1a.

Mounting piece stuck to 1a? a,? It is pivotally supported by using two-step bolts 7b at the upper end portion protruding from the base 1 of a.

Similarly, the seat part 4 and the leg rest part 5 have frame end parts 4b, 4b and 5a protruding from the inside at corresponding positions on both sides.
5a, and is pivotally connected to one end of the links 8a, 8a at the connecting parts 6b, 6b, and the other end of each link 8a has one end connected to the side plate part 1a of the base 1 via the mounting piece 7C. A movable link portion 8 that can be bent and extended is configured by being pivotally connected to the other end of the pivoted links 8b and 8b.

Therefore, each frame end portion 3a of the backrest portion 3 extends further from the connecting portion 6a in a bent shape toward the back side,
The extending protrusion 3a and the upper part of the link 8b are connected by an interlocking rod 9 which is pivotally connected to each.

On the other hand, the base 1 has side plate parts 1a, la and front and rear plate parts 1b, lc.
A partition wall 10 is provided approximately in the center of the base 1 in the longitudinal direction to divide the space inside the base 1 into a backrest 3 side and a leg holder 5 side. A bottom plate 11 is disposed on the side of the section 5 to form a box-shaped storage section 12.

Incidentally, near both sides of the partition wall 10, there are longitudinal holes 10a, 10a.
This hole lea, 10a is connected to the interlocking rod 9.
, 9 are inserted.

Further, on the backrest portion 3 side of the base 1, a forward/reverse rotation drive motor 15 and interlocking means 26 (FIG. 5) for transmitting the rotational force to a connecting link portion 22, which will be described later, are provided.

In other words, two crossbars 1 parallel to each other between the two side plates 1a and 1a of the base 1.
d and ld are passed, and mounting plates 13a and 13b each having an oval-shaped cross section are fixed to the upper surface of each of them, and a screw shaft 14 is pivotally supported between the two mounting plates 13a and 13b. This threaded shaft 14 is connected to the reversing motor 1 fixed to the mounting plate 13b.
5 to rotate in both forward and reverse directions via a belt 16 and a pulley 17.

Reference numeral 18 indicates a reinforcing shaft to prevent the distance between the two singing boards 13a and 13b from changing due to distortion, etc., and reference numeral 13c indicates a mounting plate 13a that is passed between the crossbars 1d and ld to similarly prevent the distance from changing. This is an extension of the

A rectangular parallelepiped-shaped slider 19 is screwed onto the threaded shaft 14, and a connecting rod 20, which is formed by integrating two parallel frame frames on both sides of the slider 19, is bent downward into a substantially dogleg shape. One end is pivoted.

Further, a crankshaft-shaped rotating base shaft 21 is rotatably attached to a position near the front plate portion 1b between the side plate portions 1a and lc of the base 1, and the base end side is fixed to this rotating base shaft 21. The connecting rod 20 is attached to each tip of the pair of parallel lever pieces 21a, 21a.
The other end is pivotally attached, and furthermore, a link 22a is fixed at its base end near both ends of the pivot shaft 21 so as to maintain a constant angle with respect to each of the lever pieces 21a.

As described above, in this embodiment, the interlocking means 26 is formed by the belt 16, the pulley 17, the threaded shaft 14, the mover 19, the connecting rod 20, and the rotating base shaft 21.

The tip of each link 22a is connected to the other end of each link 22b, which has one end pivotally connected to each frame end 3b protruding from the inside on both sides of the back side of the backrest 3, so that it can be bent and extended. 22.

Reference numeral 23 denotes a coil spring that is engaged between a locking pin 21b that is passed between the intermediate parts of the lever pieces 21a and 21a, and a fixture 24 that is fixed to the front plate part 1b, and is used to attach the lever pieces 21ay21a to the front plate part 1b. It is biased in the direction of attraction.

25 is a spacer for separating the connecting link portion 22 from the side plate portion 1a.

The sofa-bed with the above configuration has a fifth bed in the bed form.
As shown in the figure, the mover 19 is located on the rear side of the screw shaft 14, and the connecting link part 22 and the movable link part 8 are both bent in a dogleg shape, and the entire bed floor part 2 is It is flat.

In this bed configuration, articles can be taken in and out of the storage section 12 by lifting the leg support section 5 and rotating it upward as shown by the two-dot chain line in the figure.

On the other hand, in this bed configuration, when the threaded shaft 14 is rotationally driven to move the slider 19 forward, the connecting rod 20 pushes out the lever piece 21a and the pivot shaft 21 rotates, as shown in FIG. Then, the connecting link part 22 expands and pushes up the backrest part 3, and the backrest part 3 rotates around the connecting part 6a and stands up in an inclined manner.

At this time, even if the user's body weight is on the bed floor 2, the backrest 3 can be rotated smoothly due to the bias of the spring 23.

Further, as the backrest portion 3 rotates, the interlocking rod 9 is pulled forward, so that the movable link portion 8 is extended, and the connection portion 6b between the seat portion 4 and the leg rest portion 5 is pushed up, and the position is raised. Then, the desired sofa shape is formed.

However, even in this sofa form, articles can be taken in and out of the storage part 12 by rotating the leg holder part 5 upward as shown by the two-dot chain line in the same way as in the bed form.

In addition, to return from the sofa configuration to the bed configuration, use the screw shaft 1.
4 should be rotated in the opposite direction to the above.

In the above embodiment, the connecting link part 22 has a structure in which it is bent and extended via the pivot shaft 21, but by appropriately setting each part to a material and shape that can ensure smoothness and strength of movement, the connecting link part 20 can be It is also possible to have a configuration in which the connecting link portion 22 is directly bent and stretched.

In addition, the movable link part 8 has a structure in which two links 8a*8b are bent and stretched, but by using one link material and tilting it with an interlocking rod 9, the seat part 4 and the leg rest are connected to the part 5. The connecting portion 6b may be moved up and down.

As described above, according to the present invention, the bed floor part 2 placed on the base 1 is made up of three parts, in which the backrest part 3, the seat part 4, and the leg rest part 5 are connected in order so as to be flexible. In the pet, the connecting part 6a between the backrest part 3 and the seat part 4 is pivotally connected to the base 1, and the backrest part 3 and the base 1 are pivotally connected by a flexible connecting link part 22, and the connecting link By bending and extending the portion 22, the backrest portion 3 can be raised and lowered with respect to the base 1, and the forward and reverse rotation drive motor 15 for driving the connecting link portion 22 to bend and extend is connected to the connecting link via the interlocking means 26. The seat part 4 and the leg rest are pivotally connected to the connecting part 6b of the part 5 and the base 1 by a movable link part 8 which can be bent and extended, and the seat part 4 and the leg rest are connected by a movable link part 8 which can be bent and extended. The portion 4 and the leg rest have a portion 5 that can be raised and lowered into a substantially mountain shape with the connecting portion 6b as the apex, and is a protrusion that projects from the backrest portion 3 and reciprocates in a substantially horizontal direction as the backrest portion 3 rises and falls. 3a and the movable link part 8 are interlocked and connected by the interlocking rod 9, the backrest part 3, the seat part 4, and the leg support part 5 can be raised and lowered by a single driving source, which is different from the conventional method. Since multiple drive sources and interlocking means are not required, manufacturing costs can be significantly reduced, and the installation area of these drive sources and interlocking means within the base 1 can be reduced. This makes it possible to effectively utilize the empty space inside the base 1.

Further, according to the present invention, the leg holder is provided with the storage section 12 on the base 1 below the section 5, and the leg holder section 5 can be opened and closed with respect to the storage section 12 using the connecting section 6b with the seat section 4 as a fulcrum. Since the leg rest part 5 is disposed in the lower part, the leg rest part 5 can play the role of the lid of the storage part 12 without being affected by the above-mentioned up-and-down operation, and there is no need to separately provide a lid for the storage part. As a result, it has a simpler structure and can be used for more purposes.

[Brief explanation of the drawing]

Fig. 1 is a side view of a sofa-pet bed form that is the object of the present invention, Fig. 2 is a side view of the same sofa form, and Fig. 3 is a sofa-pet drive mechanism according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of the connecting portion between the backrest and the seat; FIG. 5 is a side view of the main part showing the drive mechanism in bed form; FIG. FIG. 6 is a side view of the main parts showing the state in the sofa form. 1...Base, 2...Bed floor, 3.
...Backrest part, 3a...Protrusion, 4...
... Seat part, 5... Leg rest part, 6a, 6b.
...Connection part, 8...Movable link part, 9.
...Interlocking rod, 12...Storage section, 15...
. . . Forward/reverse rotation drive motor, 22 . . . Connection link portion, 26 . . . Interlocking means.

Claims (1)

[Scope of utility model registration request] In the sofa-pet, the pet floor part 2 placed on the base 1 is composed of three parts, in which a back part 3, a seat part 4, and a leg support part 5 are successively connected in a flexible manner. The connecting portion 6a with the backrest portion 3 is pivotally connected to the base 1.
and the base 1 are connected to each other by a bendable connecting link part 22, and by bending and stretching the connecting link part 22, the backrest part 3 can be raised and lowered with respect to the base 1, and the connecting link part 22 is A forward/reverse rotation drive motor 15 for bending/extending drive is interlocked with the connecting link part 22 via an interlocking means 26, and a connecting part 6b between the seat part 4 and the leg rest part 5 is connected to the base 1. The seat part 4 and the leg rest part 5 are pivotally connected by a movable link part 8 which can be bent and extended, and by the bending and extension of the movable link 8, the seat part 4 and the leg rest part 5 are formed into a substantially mountain shape with the connecting part 6b as the apex, and can be raised and lowered. A protrusion 3a that protrudes from the backrest part 3 and reciprocates in a substantially horizontal direction depending on the ups and downs of the backrest part 3 is interlocked with the movable link part 8 by an interlocking rod 9, and the leg rest is connected to the part 5.
A sofa-pet comprising a storage section 12 provided in the base 1 below, and a leg support section 5 arranged to be openable and closable with respect to the storage section 12 using the connecting section 6b as a fulcrum.