JP3049433U - Locking device when folding a folding bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device for folding a folding bed which has improved stability in a folded state and is excellent in safety. A bed frame (22, 2) is provided on both sides of a pedestal (21).
3) is symmetrically combined, and the bed frames (22, 23) have frame rods (221, 231) pivotally connected to the pedestal (21), and one frame rod (221) is far away from the pedestal (21). A leg frame (222) is provided at one end, and a leg seat (232) is provided at one end of the other frame rod (231) far from the pedestal (21), and the leg frame (222) and the leg seat ( 232) are attached to the lower ends of the casters (226, 237), and springs (24, 231) for pulling the frame rods (221, 231) when folding between the pedestal (21) and the frame rods (221, 231). 2
In the folding bed (2) provided with 5), when the bed is folded between both bed frames (22, 23), both frame rods (221, 21) are provided.
231) is provided with a localization mechanism (3) for holding the same in parallel.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lock device, and more particularly to a lock device for folding a folding bed provided with a positioning mechanism for holding both folded bed frames in parallel at appropriate portions of the left and right bed frames of the folding bed.

[0002]

[Prior art]

 A folding bed is a special bed that can be laid down when unfolded and can be conveniently stored when folded.Structurally, the both ends in the longitudinal direction are pivoted upward so that they can be folded, that is, the mattress side. There is a bed in which both sides are stacked face-to-face, and both ends are folded upward.It is convenient to store the bed, but the mattresses are butt-folded and folded so that the futon or hanging material can be folded before folding. Must be removed, which is not ideal for use. In order to remedy this drawback, folding beds that can transfer futons etc. even after folding to the market will appear.This type of folding bed is a folding method that rotates downward, that is, both bed frames with mattresses laid down. The backrest is folded back-to-back, so the mattress is on both sides of the folded bed and the bedding can be covered directly on the mattress and held. The present invention improves a folding bed that can be placed on a futon after being folded.

FIG. 6 shows a three-dimensional view of a conventional folding bed after being developed, and FIG. 7 shows a side view of a conventional folding bed. In the conventional folding bed 1, a left bed frame 12 is provided on a left side of a pedestal 11, and a right bed frame 13 is formed on a right side. The pedestal 11 has a support rod 112 laid between two pivotal support plates 111 which are relatively parallel to each other at a predetermined interval (width of the bed frame). The hook 113 is provided. The left bed frame 12 has a U-shaped frame rod 121 and a leg frame portion 122, and both parallel ends of the frame rod 121 are pivotally connected to the same side ends of the both pivotal support plates 111 by pivots 123, respectively. . The mattress 10 is provided on the upper end surface of the frame rod 121, the leg frame 122 is provided on the outer edge of the frame rod 121 remote from the pedestal 11, and the legs extending downward are formed on both sides of the leg frame 122. Then, the casters 124 are attached to the lower ends of the support legs. The right bed frame 13 is assembled by a U-shaped frame rod 131 and a leg seat 132, and both parallel ends of the frame rod 131 are pivoted to the other end on the same side of the pivot support plate 111 by a pivot 133. The mattress 10 is provided on the upper end surface of the frame rod 131, and the leg seat 132 has two leg plates 134 facing each other, and the two leg plates 134 are pivoted to the outer side surfaces of the frame rod 131 by the support shafts 130. The connecting rod 135 is connected between the two leg plates 134, and both casters 136 are attached to the lower ends of the leg plates 134 at appropriate intervals. Further, in order to allow the folding bed 1 to be conveniently folded, a spring 14 is hung between one hook 113 and a frame rod 121, and a spring 15 is also hung between the other hook 113 and the frame rod 131. hand over.

When the folding bed 1 is deployed, the support rod 112 of the pedestal 11 is supported by the ground, and the casters 124 and 136 of the left and right bed frames 12 and 13 are also in contact with the ground. At this time, the two frame rods 121, 131 of the folding bed 1 can lie parallel to the same horizontal plane, and the springs 14, 15 below the bottom surface thereof are in an extended state.

Next, as shown in FIG. 7 and FIG. 8, when the pedestal 11 is pulled up when folded, one end of the left and right frame rods 121, 131 separated from the pedestal 11 by the pulling action of the springs 14, 15. Is pulled toward the longitudinal center of the folding bed and can be folded. Also, if you want to store the futon together, if the futon is spread over both frame rods 121 and 131 while the folding bed 1 is still unfolding, the futon will be pulled up together when the pedestal 11 is pulled up. It will be folded from the center and will be laid over the loading frame rods 121 and 131 to cover it, and at the same time, the futon can be stored.

Although the conventional foldable bed 1 can obtain the desired effect, when folded, the frame rod 131 rotates upward about the support shaft 130 pivotally supported by the leg plate 134, and the outside of the frame is the leg seat 132. Lean on the connecting rod 135. On the other hand, the left bed frame 12 is drawn toward the right frame culm 131 side by the pulling force of the springs 14 and 15, and even after being drawn, the right frame rod 131 and the leg plate 134 are merely in a pivoted state. May rotate. Moreover, the leg frame 122, which was originally in contact with the ground, is at a higher position than the casters after being folded. Therefore, the right frame 131 is pivoted by the support shaft 130, and the entire folded bed 1 tends to fall to the left under the condition that the left side of the right frame 131 is heavier than the right. However, if the futon is left hanging on such a mechanism that easily collapses, the tendency to collapse is further strengthened, and there is a danger that even a small external force may cause the vehicle to collapse. That is, although the conventional folding bed 1 is convenient in use, it lacks stability after folding and has a drawback that it falls easily.

[0007]

[Problems to be solved by the invention]

 The present invention has been made in view of the problems of the conventional folding bed, and an object of the present invention is to provide a folding bed locking device which has improved stability in a folded state and is excellent in safety.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention combines a bed frame on each side of the pedestal symmetrically, and each bed frame has a frame rod pivotally connected at one end to the pedestal. A leg frame is provided at one end on the opposite side that is far away, and a leg is installed at one end on the opposite side that is far away from the pedestal of the other frame rod. In a folding bed provided with spring means for pulling both frame rods between the pedestal and both frame rods when they are folded, the loading frame rods were snuggled in parallel when folded between the bed frames. It is configured with a localization mechanism that locks to the state.

The localization mechanism has an insertion hole provided in one leg plate of the leg seat, a fixing hole provided in a bed frame provided with the leg frame portion, and an insertion pin. When they lie parallel to each other, the insertion hole and the fixing hole correspond to each other, and the insertion pin is inserted into the corresponding matching insertion hole and the fixing hole so that the insertion pin locks. A convenient grip ring is provided at the outer end for convenient insertion / removal operation, and a steel bead is projected around the other end of the main spindle at an appropriate position. A flange is formed to be in contact with the outer surface of the hole, and the above-described localization mechanism is fitted to the fixing hole and the insertion hole formed on each of the frame rods, and the protruding end in a closely fitted state in the fixing hole. It has an insertion pin with a fitting part, and when both frame rods are folded and held close to each other in parallel, the fixing hole and the insertion hole correspond In accordance with this, the insertion pin is inserted and locked, or the above-mentioned localization mechanism is provided with a locking plate pivotally provided on one side of the frame rod and a locking convex column fixed to the other frame rod. It is more preferable that the engaging plate is further provided with a locking groove for hooking to the locking convex column when the two frame rods are held close to each other in parallel.

As described above, according to the present invention, a positioning mechanism is provided at an appropriate position of a folding bed using a spring as a folding means, and the positioning mechanism is combined with a fixing hole, an insertion hole and an insertion pin, or locked. Because it is formed with a hook structure of a plate and a locking convex column, both folded frame rods can be fixed in parallel and close to each other.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the examples of the present invention. As shown in FIGS. 1 and 2, the folding bed 2 in the relatively preferred embodiment of the present invention has a pedestal 21 at a central portion in a longitudinal direction and a left side pivotally mounted on both sides of the pedestal 21 as in the prior art. The pedestal 21 has a bed frame 22 and a right bed frame 23, and the pedestal 21 forms a contact step 212 for contacting and contacting the support rod 211 with the ground, and a longitudinal end extending upward at each end of the contact step 212. A portion 213 is provided, and each longitudinal end 213 is clamped and fixed between the inner and outer parallel pivot plates 214. The left bed frame 22 has a U-shaped left frame rod 221 and a leg frame part 222, and the two parallel ends of the left frame rod 221 are respectively supported by a pivot 223 at two appropriate sets of pivot support plates 214. And the mattress 20 is provided on the upper end surface of the left frame rod 221, and the leg frame 222 is fixed to the outer edge far from the pivot support plate 214 at both parallel ends of the left frame rod 221. The leg frame 222 has a substantially inverted U-shape, and has legs 224 extending parallel downward at both ends, and a left caster 226 pivotally provided at the lower end of each leg 224. The right bed frame 23 has a U-shaped right frame rod 231 and a leg seat 232, and both parallel ends of the right frame rod 231 are pivotally provided between two sets of pivot support plates 214 by both pivot shafts 233, respectively. In addition, a mattress 20 ′ is provided on the upper end surface of the right frame rod 231, and an inverted U-shaped handle 230 is fixed to each side surface of the right frame rod 231. The leg seat 233 has two leg plates 234 attached to the outside of the right frame rod 231. Each leg plate 234 is pivotally mounted on the outer end side surface of the right frame rod 231 by a support shaft 235, and is connected between the two leg plates 234. The right and left casters 237 are mounted at appropriate intervals at the lower ends of the two leg plates 234, respectively. Further, in order to achieve the purpose of automatic folding, the contact step 212 of the support rod 211 and the left A left spring 24 is provided between one end of the frame rod 221 far from the pedestal 21, and a right spring 25 is also provided between the right frame rod 231 and the support rod 211.

As shown in FIGS. 2 and 3, in this embodiment, the left and right bed frames 22 and 23 are provided with the localization mechanism 3 in order to improve the stability of the folded bed 2. The localization mechanism 3 has an insertion hole 31 provided in one leg plate 234, a fixing hole 32 opened in the left frame rod 221, and an insertion pin 33. Then, under the condition that the folding bed 2 is folded and the left and right frame rods 221 and 231 maintain a parallel state, the insertion hole 31 and the fixing hole 32 correspond to each other in the axial direction. The pin 33 has a main shaft 331 that penetrates the above-mentioned hole, a grip ring 332 convenient for operation is attached to the outer end of the main shaft 331, and a steel bead 333 is protruded at an appropriate position around the other end of the main shaft 331. A flange 334 is formed around an appropriate portion of the main shaft 331 between the bead 333 and the grip ring 332 to abut the outer surface of the insertion hole 31.

As shown in FIG. 1 and FIG. 3, under the state where the folding bed 2 of the present embodiment is deployed, the pedestal 21 and the left and right casters 226 and 237 similarly form the left and right bed frames 22 and 23. 23, and when folded, the pedestal 21 moves upward when the handle 230 is gripped by hand and pulled upward, and the left and right frame rods 221 and 231 are moved by the left and right springs 24 and 25. When one end far from the pedestal 21 is pulled toward the central portion in the longitudinal direction of the folding bed 2 and the left and right frame rods 221 and 231 become parallel, the insertion hole 31 and the fixing hole provided thereon are provided. When the main shaft 331 is inserted into the insertion hole 31 by holding the grip ring 332 of the insertion pin 33 by hand, the flange 334 of the main shaft 331 contacts the side surface of the leg plate 234. Contact, 331 rotation of main shaft The steel balls 333 are also fitted in the fixing holes 32, and by inserting the insertion pins 33, the parallel state between the left and right frame rods 221 and 231 is maintained, and the folding bed 2 is stable after being folded. Performance can be improved.

According to the present invention, in order to achieve the above object, the leg plate 234 and the left frame rod 221 have holes corresponding to each other, and as shown in FIG. The localization mechanism 5 may be shelled around the right frame rods 411, 421. The localization mechanism 5 includes a fixing hole 51 formed in the left frame rod 411, an insertion hole 52 formed in the right frame rod 421, and a fixing hole. It has an insertion pin 53 to be inserted into the hole 51 and the insertion hole 52, and a fitting portion 531 is formed at the protruding end of the insertion pin 53 to press tightly into the fixing hole 51 and tightly fit. That is, by forming the localization mechanism 5 at an appropriate position on the folding bed 2, the stability of the folded bed can be maintained.

In order to maintain the stability of the folded bed, the present invention may use an insertion pin and may change the structure of the localization mechanism as shown in FIG. The structure 6 is fixed to a portion corresponding to the locking plate 61 on the right frame rod 721 of the right bed frame 72 and the locking blank 61 pivotally provided on the side of the left frame rod 711 of the left bed frame 71. The locking plate 61 further includes a locking groove 63 whose opening is oriented toward the locking convex column 62. When the left and right frames 711 and 721 of the folding bed are folded and parallel, the locking plate 61 is rotated in the direction of the locking convex column 62 so that the locking groove 63 is formed on the locking convex column 62. When fitted and locked, the parallelism between the left and right frame rods 711 and 721 and the stability after folding can be maintained.

As can be seen from the above description, in the present invention, a positioning mechanism is provided at an appropriate position of a folding bed using a spring as a folding means, and the positioning mechanism is combined with a fixing hole, an insertion hole and a shaft pin, or In addition to being formed with a hooking structure of a locking plate and a locking convex column, and attached to the portion shown in the above embodiment, if necessary, it is disposed near the upper end of the frame rod, that is, near the pedestal. Because of this configuration, the folded frame rods can be reliably held close to each other in parallel from such a configuration, and at the same time, the stability can be promoted, and when the folding bed is folded together with the futon, the balance can be maintained. It can be prevented from falling down from collapse.

[0017]

[Effect of the invention]

 As described above, the present invention employs a hooking structure in which a fixing hole, an insertion hole and a carry-in pin are combined at an appropriate position of a folding bed using a spring as a folding means, or a locking plate and a locking convex column are used. Provision of the formed orientation mechanism improves the stability of the folded bed, and prevents the folded bed from falling off due to lack of balance when the futon is folded together. In addition, it has the effect of providing safety in use.

[Brief description of the drawings]

FIG. 1 is a perspective view of a folding bed incorporating a folding lock device according to the present invention.

FIG. 2 is a side view of the lock device in a folded state according to the present invention;

FIG. 3 is a cross-sectional view of the orientation mechanism of the folding lock device according to the present invention.

FIG. 4 is a side view of another embodiment of the present invention in a folded state.

FIG. 5 is a side view of another embodiment of the present invention in a folded state.

FIG. 6 is a perspective view of a conventional folding bed.

FIG. 7 is a side view when the conventional folding head is expanded.

FIG. 8 is a side view when the conventional folding head is folded.

[Explanation of symbols]

 2 Folding Bed 21 Pedestal 22 Left Bed Frame 221 Left Frame Rod 222 Leg Frame Part 226,237 Caster 23 Right Bed Frame 231 Right Frame Rod 232 Leg Seats 24,25 Spring 3 Positioning Mechanism 31 Insertion Hole 32 Fixing Hole 33 Insertion Pin 331 Pin body 332 Grip ring 333 Steel bead 334 Flange

Claims (5)

[Utility model registration claims] A bed frame is symmetrically combined on both sides of a pedestal, and each bed frame has a frame rod pivotally connected at one end to the pedestal, and the frame rod of one of the bed frames is on the opposite side far away from the pedestal. A leg frame is provided at one end, a leg is provided at the other end far away from the pedestal of the other frame rod, casters are attached to the leg frame and the lower end of the leg seat, respectively, and the pedestal and both frames In a folding bed provided with spring means for pulling both frame rods when folding between the rods, a positioning mechanism that locks the loading frame rods in a state of being snuggled in parallel when folded between both bed frames. A folding device for a folding bed, wherein the folding bed is provided. 2. The positioning mechanism according to claim 1, further comprising an insertion hole formed in one leg plate of the leg seat, a fixing hole formed in a bed frame provided with the leg frame, and a push pin. 2. The insertion hole and the fixing hole correspond to each other when the two frame rods are close to each other in parallel, and the push pin is inserted and locked into the correspondingly matching insertion hole and the fixing hole. Locking device when folding a folding bed. 3. The push-in pin has a grip ring convenient for pulling and inserting at the outer end of the spindle, and a steel bead is protruded at an appropriate position around the other end of the spindle, and a steel ball of the spindle and a grip ring are provided. 3. A folding lock device for a folding bed according to claim 2, wherein a flange portion is formed around an appropriate portion between the flange portions so as to contact the outer surface of the insertion hole. 4. The positioning mechanism according to claim 1, wherein the insertion pin includes a fixing hole and an insertion hole formed in each of the frame rods, and an insertion pin having a protruding end fitted into the fixing hole in a closely fitted state. Have
2. The folding bed according to claim 1, wherein when the two frame rods are folded and held close to each other in parallel, the fixing hole and the insertion hole correspond to each other, and the insertion pin is inserted and locked. When locking device. 5. The positioning mechanism has an engaging plate pivotally provided on one side of a frame culm and a locking projection fixed to the other frame rod. 2. A locking groove for hooking to a locking convex column when the members are held close to each other in parallel.
A lock device for folding a folding bed according to item 1.