JP7138309B2 - Assembled cot - Google Patents

Description

The present invention relates to a knockdown cot.

The knockdown type cot uses a thick fabric (bed cloth) such as canvas for the bed surface, and both side edges of the bed cloth are connected to horizontal side rods, and supported by leg members that can be detachably attached to both horizontal side rods. It is known that the leg members in particular are provided with a tensioning mechanism for tensioning the bed cloth.

For example, Patent Documents 1 and 2 disclose a tensioning operation in which the upper part of one vertical rod is rotatable in the bed cloth tensioning direction in an upper opening U-shaped leg member having a vertical rod portion and a horizontal rod portion. Disclosed is a tensioning mechanism formed in a rod, provided with an engagement portion with a horizontal side rod at the upper end of the tensioning operation rod, and provided with an appropriate lock portion for connecting and fixing between the tensioning operation rod and the vertical rod. ing.

Further, the aforementioned Patent Document 2 discloses a structure for making the leg members compact when stored. Fig. 5 of the same document shows a structure in which vertical rods and horizontal rods are formed as pipes in an insertion connection structure, rubber ropes are included in both pipes to hold the connection, and the insertion is released when stored or carried. .

Japanese Utility Model Publication No. 47-26082. Japanese Patent Application Laid-Open No. 2014-91046.

In the tension mechanism for the bed cloth of the knockdown cot described above, since the tension operating lever is limited to the range of the length of the vertical rod (the height of the bed), the turning radius of the tension operating lever can be increased. Unable to tension the bed cloth requires a strong force.

In addition, in the folding structure for storage and carrying, the insertion connection structure that uses a rubber rope needs to be formed into a fixed structure by inserting it into the pipe itself, and the rubber rope is pulled during assembly and separation (folding). The operation is complicated.

SUMMARY OF THE INVENTION Accordingly, the present invention proposes a collapsible cot equipped with a tensioning mechanism that is excellent in operability.

According to claim 1 of the present invention, there is provided a knockdown cot comprising a bed cloth and horizontal side rods arranged and connected to both sides of the bed cloth, and a bed portion that is locked at a position opposite to the horizontal side rods. In a knockdown cot composed of a plurality of leg members that support the leg members, the leg members include a connecting body (rotating connecting body, locking connecting body) arranged below the position facing the horizontal side rod, and the upper end It has a connecting structure with a horizontal side rod, and has a vertical rod part whose base end is pivotally connected to the connecting body with a horizontal axis, and two horizontal rods (horizontal connecting rod, horizontal operating rod) that connect the opposing connecting bodies. The upper end of the vertical rod portion is stopped at a position corresponding to the horizontal rod portion, and is pivotally connected to the horizontal shaft so that it can pass through the outer side of the connecting body and rotate to the lower position of the horizontal rod. , each of the horizontal rods has one end connected and fixed to the opposing connecting body, and the other end of one horizontal rod (connecting horizontal rod) is connected to the fixedly connected connecting body (locking connecting body) facing the connecting body The other end of the other horizontal rod (operating horizontal rod) is detachably locked to the opposing connecting body (locking connecting body). and

Further, in the knockdown cot according to claims 2 and 3 of the present invention, the connection structure between the vertical rod portion and the horizontal side rod in the bed is a hook that engages the horizontal side rod at the tip of the vertical rod portion of the vertical rod portion. A locking connection structure provided with a stop portion, or an insertion connection structure in which a horizontal rod is provided with a receiving tube portion and the tip of the vertical rod is inserted into the receiving tube portion.

To assemble the bed, the bed portion is spread, the upper ends of the vertical rod portions on both sides of the leg members are connected to the horizontal side rods, and the horizontal operating rods are rotated upward (locking position) from below to connect. A pivotal connecting body pivotally connected to a horizontal rod and a vertical rod pivotally connecting a base to the pivotal connecting body perform a pivoting motion in accordance with the pivoting of the horizontal operating rod, and the upper ends of the opposing vertical rod portions It becomes an operation to widen the interval between

Therefore, when the open end of the horizontal operating lever is engaged with the engaging connecting member while the horizontal operating lever is rotated to widen the distance between the upper ends of the opposing vertical levers, the leg members are attached while the bed cloth is in tension. , the bed is assembled.

Further, according to the fourth and fifth aspects of the present invention, in the knockdown cot, a contact surface is provided on the outer surface of the connecting body for restraining the rotation of the vertical rod, and a lower portion of the contact surface is provided. In particular, the outer surface of the connector is provided with a groove into which the vertical rod with the contact surface as the bottom surface is fitted, and the shape and structure of the connector are simplified. can be

According to a sixth aspect of the present invention, there is provided the knockdown cot, in which the connection body is provided with a locking groove portion of an upper opening into which the fixing portion of the horizontal rod and the horizontal rod are fitted; It is formed by pivotally connecting one end of the horizontal rod fitted to the connector, and a member having the same shape can be adopted as the connecting body.

As described above, the configuration of the present invention is such that when the bed is assembled, the leg members are attached to the bed while the bed cloth is being tensioned by manipulating the horizontal operating levers. It is operated with a sufficiently longer turning radius than the tensioning operation rod, and with a light operation force, the bed can be assembled with the bed cloth tensioned.・Achieve compactness and operability for portability.

BRIEF DESCRIPTION OF THE DRAWINGS In the whole view of 1st embodiment of this invention, (a) is a perspective view (b) is a perspective view of the frame|skeleton except the bed cloth. Fig. 3 is a perspective view of the main part (before assembly); The perspective view of the same connection body part. The assembly explanatory drawing (front view before assembly). In the figure, (a) is during the assembly operation and (b) is after assembly. Explanatory drawing of the accommodation state of the same leg member. The partial perspective view except the bed cloth of the same second embodiment. Fig. 3 is a perspective view of the main part before assembly;

Next, embodiments of the present invention will be described. FIGS. 1 to 6 show the first embodiment, and this knockdown cot is composed of a bed section A and a plurality of leg members B. The bed section A is a bed made of canvas or thick cloth. A cloth 1 is formed by forming both side portions into a cylindrical shape and inserting horizontal side rods 2. In particular, on both sides of the bed cloth 1, there are notches exposing the horizontal side rods 2 to which the leg members B are mounted. A portion 11 is formed.

The leg member B consists of connecting bodies (locking connecting body 3a, rotating connecting body 3b) which have the same shape and are arranged symmetrically on the left and right sides and front and back, and a vertical rod portion 4 which is mounted facing the connecting bodies 3a and 3b. , and two horizontal pipes (horizontal connecting rod 5a and horizontal operating rod 5b) connecting the connecting bodies 3a and 3b.

The connecting bodies 3a and 3b are continuous with a horizontal rod fixing portion 31 formed of a mounting hole corresponding to the horizontal rod, a locking groove 32 with an upper opening provided parallel to the horizontal rod fixing portion 31, an outer side surface and a bottom surface. It is provided with a storage groove 33 formed and a foot surface portion 34 on the bottom surface.

The vertical rod portion 4 is composed of a vertical rod 41, a locking portion 42, and a vertical rod support shaft 43. A locking portion 42 having a recessed portion to be fitted from the inside of the horizontal side rod 2 is provided at the upper end of the vertical rod 41. , the concave portions of the engaging portions 42 are arranged in the storage grooves 33 on the outer side surfaces of the left and right connecting bodies 3a and 3b so as to face outward, and are housed in the storage grooves 33 on the bottom side by the rotating motion. In addition, the base end of the vertical rod 41 is connected to the connecting bodies 3a and 3b by a vertical rod support shaft 43, which is a horizontal axis.

The horizontal rods 5a and 5b have one ends connected and fixed to opposing connecting bodies 3a and 3b, respectively. That is, the horizontal connecting rod 5a is mounted in the mounting hole (horizontal rod fixing portion 31) of the locking connecting body 3a and connected and fixed, and the horizontal operating rod 5b is connected and fixed to the horizontal rod fixing portion 31 of the rotary connecting body 3b.

Further, one end of the connecting horizontal rod 5a is fitted into the engaging groove 32 of the rotary connecting body 3b and pivotally connected to the operating shaft 51, which is a horizontal shaft.

When assembling the bed, the bed portion A is spread, and the horizontal operating lever 5b of the leg member B is disengaged from the engaging connecting member 3a, and the horizontal operating lever 5b is moved around the operating shaft 51 as shown in FIG. is rotated to increase the angle formed by the horizontal connecting rod 5a and the horizontal operating rod 5b. In this state, the distance between the engaging portions 42 of the opposing vertical rod portions 4 is shorter than in the assembled state. Both of the vertical rods 41 are accommodated in the storage grooves 33 and prevented from rotating in the opposite directions.

Next, the assembling work is carried out, and as shown in FIG. In this state, when the horizontal operating rod 5b is rotated around the operating shaft 51 so as to follow the horizontal connecting rod 5a, the vertical rod 41 pivotally connected to the rotary connecting body 3b and the rotary connecting body 3b rotates as described above. As the horizontal operating lever 5b rotates, it rotates about the operating shaft 51, widens the gap between the engaging portions 42 of the opposing vertical levers 4, and connects the open ends of the horizontal operating levers 5b to the engaging connection body. After opening beyond the side wall portion of the locking groove 32 of 3a, when it is housed in the locking groove 32, the return rotation of the operation horizontal lever 5b (rotation to the state before assembly) is blocked, and in this state, Stabilize.

Therefore, by rotating the horizontal operating rod 5b, the distance between the engaging portions 42 of the vertical rod portion 4 facing each other is increased to tighten the bed cloth 1, and the leg member B is attached to the bed portion A to assemble the bed. is.

The vertical rod 41 is housed in a storage groove 33 provided on the outer surface of each connecting body 3a, 3b when in use, and its base is pivotally connected by a vertical rod support shaft 43. direction) is blocked by the housing groove 33, but rotation in the opposite direction is permitted. When pivoted, leg member B folds compactly for convenient storage and configuration (Fig. 6).

FIGS. 7 and 8 show a second embodiment. This embodiment adopts a leg member B1 different from the first embodiment in the connection structure between the horizontal side rod 2 and the vertical rod portion 4a. Other structures are the same as those of the first embodiment (the same figure numbers indicate the same configuration).

The connection structure between the vertical rod portion 4a of the leg member B1 and the horizontal side rod 2 is such that a receptacle portion 44 into which the tip of the vertical rod 41 is inserted and mounted is provided at a predetermined position (leg member mounting position) of the horizontal side rod 2. In order to attach the leg member B1 to the bed portion A and assemble the bed, the tip of the vertical rod 41 is inserted into the receptacle portion 44 and connected, and in this state, the horizontal operation rod 5b is connected to the horizontal connection rod 5a. When the bed cloth 1 is rotated around the operating shaft 51 so as to be aligned, the bed cloth 1 can be assembled with tension as in the case of the first embodiment.

A Bed parts B, B1 Leg member 1 Bed cloth 11 Notch 2 Horizontal side rod 3a Locking connecting body 3b Rotating connecting body 31 Horizontal rod fixing part 32 Locking groove 33 Storage groove 34 Foot surface parts 4, 4a Vertical rod part 41 Vertical rod 42 Locking portion 43 Vertical rod support shaft 44 Receiving tube portion 5a Connection horizontal rod 5b Horizontal operation rod 51 Operation shaft

Claims (6)

A simple assembly type bed consisting of a bed cloth, horizontal rods arranged and connected on both sides of the bed cloth, and a plurality of leg members erected between opposing positions of the horizontal rods to support the bed. in bed,
The leg member has a connecting body arranged below a position facing the horizontal side rods, a vertical rod portion having a connection structure in which the upper end is connected to the horizontal side rod, and the base end is pivotally connected to the connecting body by the horizontal shaft, and the facing connection. Equipped with two horizontal rods connecting the body,
The vertical rod portion is pivotally connected by a horizontal shaft so that the upper end thereof is stopped at a position corresponding to the horizontal rod portion and is rotatable to the lower position of the horizontal rod through the outer side of the connecting body,
Each of the horizontal rods has one end connected and fixed to the connecting body facing each other, and the other end of one horizontal rod is pivotally connected to the fixedly connected connecting body and the facing connecting body with a horizontal axis, A collapsible cot, characterized in that the other end of the rod is detachably attached to an opposing connecting body. 2. The collapsible cot according to claim 1, wherein the vertical rod portion has a locking portion for locking the horizontal side rod at the tip of the vertical rod portion, thereby forming a connecting structure between the vertical rod portion and the horizontal side rod. 2. The collapsible cot according to claim 1, wherein the horizontal side rod is provided with a receiving tube portion, and the tip of the vertical rod is inserted into the receiving tube portion so as to connect the vertical rod portion and the horizontal side rod. 4. A collapsible cot according to claim 2 or 3, wherein an abutment surface for restraining the rotation of the vertical rod is provided on the outer surface of the connector, and the vertical rod is pivotally connected at a lower portion of said abutment surface. 5. The collapsible cot according to claim 4, wherein grooves are provided on the outer surface of the connecting body for fitting the vertical rods with the contact surface as the bottom surface. Claims 1 to 5, wherein the connecting body is provided with a locking groove with an upper opening into which the fixing portion of the horizontal rod and the horizontal rod are fitted, and one horizontal rod end fitted in the locking groove is pivotally connected. any of the knockdown cots.

Images