Emergency folding bed

Abstract

The charging assembly of the patient support device includes an upper body having a mounting portion that is operable to be coupled to a fastening assembly of the patient support device; an actuator portion coupled to the upper body and operable to be translated toward the upper body; and a pair of charging pins coupled to the actuator portion such that when the actuator portion is translated toward the upper body, the pair of charging pins are translated toward the mounting portion of the upper body.

Description

Technical Field

[0001] Cross - References to Related Applications

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 460,690, filed on April 20, 2023, and titled "Emergency Cots", and U.S. Provisional Application No. 63 / 547,208, filed on November 3, 2023, and titled "Emergency Cots", the contents of which are incorporated herein by reference.

Background Art

[0002]

[0002] Emergency folding beds often have a rechargeable battery that provides specific functions such as raising and lowering the legs of the folding bed. This rechargeable battery can be charged by electrically connecting it to a power source. However, the electrical connection between the rechargeable battery of the folding bed and the power source may not be sufficiently robust and safe, especially in the case of a power source in an emergency vehicle where road bumps or other vehicle operations may cause the disconnection between the rechargeable battery and the power source.

[0003]

[0003] Therefore, alternative systems and methods are provided for providing an electrical connection between the rechargeable battery of a folding bed and a power source.

Summary of the Invention

Means for Solving the Problems

[0004]

[0004] In one embodiment, a charging assembly of a patient support device includes an upper body having a mounting portion operable to be coupled to a fastener assembly of the patient support device, an actuator portion coupled to the upper body and operable to translate in a direction toward the upper body, and a pair of charging pins coupled to the actuator portion such that when the actuator portion translates toward the upper body, the pair of charging pins translate in a direction toward the mounting portion of the upper body.

[0005]

[0005] In another embodiment, the patient support device includes a fastener assembly operable to be coupled to a fastener mounted in the cargo area of ​​a vehicle, and a charging assembly. The charging assembly includes a body including a mounting portion coupled to the fastener assembly, an actuator portion coupled to the body and operable to translate toward the body, and a pair of charging pins coupled to the actuator portion such that when the actuator portion translates toward the body, the pair of charging pins translate toward the mounting portion of the body.

[0006]

[0006] In another embodiment, the charging assembly of the patient support device includes an upper body having a mounting portion operable to be coupled to a fastening assembly of the patient support device; an actuator portion coupled to the upper body and operable to be translated toward the upper body; and a pair of charging pins coupled to the actuator portion such that when the actuator portion is translated toward the upper body, the pair of charging pins are translated toward the mounting portion of the upper body.

[0007]

[0007] In another embodiment, the patient support device includes a fastener assembly operable to be coupled to a fastener mounted in the cargo area of ​​a vehicle, and a charging assembly. The charging assembly includes a body having a mounting portion coupled to the fastener assembly, an actuator portion coupled to the body and operable to translate toward the body, and a pair of charging pins coupled to the actuator portion such that when the actuator portion translates toward the body, the pair of charging pins translate toward the mounting portion of the body.

[0008]

[0008] In another embodiment, a directional wheel locking assembly includes a pedal, a connecting rod coupled to the pedal such that the pedal is offset from the wheel, an actuating plunger having an upper opening, and an actuating pin disposed through the upper opening of the actuating plunger, the actuating pin to which the connecting rod is coupled. The directional wheel locking assembly further includes an actuating plate having a recess and an opening inside the recess, the actuating plunger being positioned inside the opening, and a wheel locking plate having a locking opening. The wheel locking plate is operable to be coupled to the wheel. By operating the pedal into the locked position, the connecting rod pushes the connecting rod so as to rotate the actuating pin, the actuating pin falls into the recess, and the actuating plunger descends into the locking opening of the wheel locking plate, preventing the wheel from turning. By operating the pedal into the unlocked position, the connecting rod pulls the connecting rod so as to rotate the actuating pin, the actuating pin rises out of the recess, and the actuating plunger rises out of the locking opening of the wheel locking plate, enabling the wheel to turn.

[0009]

[0009] In another embodiment, the wheeled device includes a frame, a base frame coupled to the frame, a first pair of wheels coupled to the frame and a second pair of wheels coupled to the frame, and a directional wheel locking assembly. The directional wheel locking assembly includes a pedal, a connecting rod coupled to the pedal such that the pedal is offset from the wheel, an actuating plunger having an upper opening, an actuating pin disposed through the upper opening of the actuating plunger, the actuating pin to which the connecting rod is coupled, an actuating plate having a recess and an opening inside the recess, the actuating plunger being positioned inside the opening, and a wheel locking plate having a locking opening. The wheel locking plate is operable to be coupled to the wheel. By operating the pedal into the locking position, the connecting rod pushes the connecting rod so as to rotate the actuating pin, the actuating pin falls into the recess and lowers the actuating plunger into the locking opening of the wheel locking plate, preventing the wheel from swiveling. By operating the pedal into the unlocked position, the connecting rod is pulled so that it rotates the operating pin, causing the operating pin to rise from the recess and raise the operating plunger from the locking opening of the wheel locking plate, thereby enabling the wheel to rotate.

[0010]

[0010] In another embodiment, the handle assembly of the folding bed includes a handle body configured to be attached to the folding bed; a handle actuator slidably coupled to the handle body; a first coupling arm and a second coupling arm pivotably mounted on the surface of the handle body at a pivot point, the second coupling arm being slidably coupled to the handle actuator; an actuator assembly, the first end of which is coupled to the first coupling arm; and a locking coupling mechanism assembly including a locking pin, the second end of which is coupled to the locking coupling mechanism assembly. When the handle actuator is pulled, the first and second coupling arms rotate about the pivot point, pulling the actuator assembly and moving the locking pin from an extended state to a retracted state, thereby enabling a change in the length of the folding bed.

[0011]

[0011] In another embodiment, the folding bed comprises a support frame to which a pair of side rails are connected together, each side rail including a first rail and a second rail, a portion of which is slidably disposed inside the second rail, and the second rail includes two or more locking openings. The folding bed further includes a handle assembly for adjusting the length of the folding bed, the handle assembly comprising a handle body configured to be attached to the folding bed, a handle actuator slidably coupled to the handle body, a pair of couplings comprising a first coupling arm and a second coupling arm, each coupling pivotably mounted on the surface of the handle body at a pivot point, the second coupling arm slidably coupled to the handle actuator, a pair of actuator assemblies, each actuator assembly having a first end coupled to the first coupling arm of the individual couplings of the pair of couplings, and a pair of locking coupling mechanism assemblies, each locking coupling mechanism assembly positioned on the first rail of the individual side rails of a pair of side rails, each locking assembly comprising a locking pin. The second end of each actuator assembly is coupled to the individual locking coupling mechanism assembly of the pair of locking coupling mechanism assemblies. When the handle actuator is pulled, the first and second connecting arms of the pair of couplings rotate around a pivot point, pulling the actuator assembly and moving the locking pins of the pair of locking coupling mechanism assemblies from the extended to the retracted position, thereby disengaging the locking pins from the individual locking openings of the second rail of the pair of side rails, and thus enabling a change in the length of the folding bed.

[0012]

[0012] The following detailed description of specific embodiments of the present disclosure will be best understood in conjunction with the following drawings, in which similar structures are indicated by similar reference numerals. [Brief explanation of the drawing]

[0013] [Figure 1]

[0013] This is a perspective view of an exemplary folding bed according to one or more embodiments described and illustrated herein. [Figure 2]

[0014] This is a partial top view of the folding bed of Figure 1 according to one or more embodiments described and illustrated herein. [Figure 3]

[0015] Figure 1 is a partial perspective view of a folding bed showing an exemplary handle assembly according to one or more embodiments described and illustrated herein. [Figure 4]

[0016] This is a perspective view of the side rail of the folding bed of Figure 1 according to one or more embodiments described and illustrated herein. [Figure 5A]

[0017] Figure 1 is a close-up perspective view of an exemplary handle assembly of a folding bed according to one or more embodiments described and illustrated herein. [Figure 5B]

[0018] Another close-up perspective view of an exemplary handle assembly of the folding bed of Figure 1, according to one or more embodiments described and illustrated herein. [Figure 5C]

[0019] Another close-up perspective view of an exemplary handle assembly of the folding bed of Figure 1, according to one or more embodiments described and illustrated herein. [Figure 5D]

[0020] This is a perspective view of the side rail of the folding bed of Figure 1 according to one or more embodiments described and illustrated herein. [Figure 5E]

[0021] Another perspective view of the side rail of the folding bed of Figure 1 according to one or more embodiments described and illustrated herein. [Figure 5F]

[0022] Figure 1 is a perspective view of the internal components of the side rail of a folding bed according to one or more embodiments described and illustrated herein. [Figure 5G]

[0023] Another perspective view of the internal components of the side rail of the folding bed of FIG. 1 according to one or more embodiments described and illustrated herein. [Figure 5H]

[0024] Another perspective view of the internal components of the side rail of the folding bed of FIG. 1 according to one or more embodiments described and illustrated herein. [Figure 5I]

[0025] A perspective view of an internal component including a locking pin according to one or more embodiments described and illustrated herein. [Figure 5J]

[0026] Another perspective view of the side rail of the folding bed of FIG. 1 including a locking pin and an opening according to one or more embodiments described and illustrated herein. [Figure 6A]

[0027] A perspective view of an exemplary direction-controlled wheel locking assembly of a folding bed according to one or more embodiments described and illustrated herein. [Figure 6B]

[0028] A perspective view of the components of a direction-controlled wheel locking assembly according to one or more embodiments described and illustrated herein. [Figure 6C]

[0029] A cross-sectional view of the components of a direction-controlled wheel locking assembly according to one or more embodiments described and illustrated herein. [Figure 7]

[0030] A side view of an exemplary folding bed and an exemplary vehicle according to one or more embodiments described and illustrated herein. [Figure 8]

[0031] A perspective view of an exemplary fastener for mounting in a vehicle according to one or more embodiments described and illustrated herein. [Figure 9]

[0032] A perspective view of the exemplary fastener of FIG. 8 in close proximity according to one or more embodiments described and illustrated herein. [Figure 10A]

[0033] This is a diagram of an exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 10B] This is a diagram of an exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 11] This is a diagram of an exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 12] This is a diagram of an exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 13] This is a diagram of an exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 14] This is a diagram of an exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15] This is a diagram of an exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15A]

[0034] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15B] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15C] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15D] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15E]This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15F] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15G] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15H] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 15I] This is a diagram of another exemplary fastener support assembly for mating with a vehicle fastener according to one or more embodiments described and illustrated herein. [Figure 16]

[0035] This is a perspective view of an exemplary side rail of a folding bed according to one or more embodiments described and illustrated herein. [Figure 17]

[0036] This is a front view of an exemplary general-purpose accessory mounting section according to one or more embodiments described and illustrated herein. [Figure 18]

[0037] This is a perspective view of an accessory mounted on a side rail by a general-purpose accessory mounting section according to one or more embodiments described and illustrated herein. [Figure 19]

[0038] This is a close perspective view of a fastener according to one or more embodiments described and illustrated herein. [Figure 19A]

[0039] This is a perspective view of an exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 19B] This is a perspective view of an exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 20A]

[0040] This is a perspective view of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 20B] This is a perspective view of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 20C] This is a perspective view of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 20D] This is a perspective view of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 21A]

[0041] This is a perspective view of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 21B] This is a perspective view of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22A]

[0042] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22B] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22C] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22D] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22E] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22F]This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22G] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22H] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22I] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22J] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22K] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22L] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22M] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22N] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22O] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Figure 22P] This is a diagram of components of another exemplary folding bed charging assembly according to one or more embodiments described and illustrated herein. [Modes for carrying out the invention]

[0014]

[0043] The embodiments disclosed herein relate to improved folding beds, such as emergency folding beds. The folding beds described herein have the following improved features compared to conventional folding beds: for example, a handle assembly and side rails that allow the length of the folding bed to be changed with one-handed operation; an improved fastener support assembly for improved safety fastening between the folding bed and a vehicle fastener such as an emergency vehicle (e.g., an ambulance); a charging assembly for charging the folding bed's battery using a vehicle battery; and an improved ergonomically oriented wheel locker for locking the wheels of the folding bed.

[0015]

[0044] Referring here to Figure 1, an exemplary folding bed 100 (also referred to herein as a patient support device) according to one or more embodiments is schematically shown. The folding bed 100 is operable for transporting patients, such as patients at an emergency scene. The patient may be placed on the folding bed 100 and transported to an emergency vehicle, and then loaded into the cargo area of ​​the emergency vehicle for transport to a hospital or other medical facility. At the hospital, the folding bed 100 may be unloaded from the cargo area of ​​the emergency vehicle and the patient may be transported to a location within the hospital or other medical facility.

[0016]

[0045] The folding bed 100 generally includes a base 106 having four wheels 108. The base 106 of an exemplary folding bed 100 further includes two members 109 having a curved shape that accommodates locking posts directed upward or downward from the centerline of each member 109, with a gap at a height from the ground higher than the center of the wheels. The wheels 108 are swivel wheels that can rotate as well as swivel. The wheels 108 may have a large diameter so that the folding bed 100 can traverse uneven terrain without disturbing the patient. In a non-limiting example, the diameter of the wheels may be in the range of 190 mm to 205 mm including the endpoints.

[0017]

[0046] The folding bed 100 further includes a support frame 102 connected to a base 106 by an X-frame 104 having two pairs of legs. Two of the four legs of the X-frame 104 are operable to extend and retract by an actuator to extend or retract the folding bed 100. When the legs of the X-frame 104 are extended, the base 106 is moved further away from the support frame 102. When the legs of the X-frame 104 are retracted, the base 106 moves closer to the support frame 102.

[0018]

[0047] The support frame 102 includes two side rails, each having a first rail 164 and a second rail 165. As will be described in more detail below, the first rail 164 is configured to extend and retract the folding bed 100 to slide in and out of the second rail 165. The patient bed 103 is attached to the support frame 102. The patient bed 103 may have different sections that can be tilted up and down. For example, by pulling the handle actuator 168 and pushing the back portion of the patient bed 103 upward, the back portion may be tilted upward to transfer the patient to a seated position.

[0019]

[0048] Referring to Figures 1 to 3, the folding bed includes a head section 160 that is close to the patient's head. The head section 160 includes two load wheels 107 that support the head section 160 of the folding bed 100 when it is loaded into the cargo area of ​​an emergency vehicle. The head section 160 may further include a retaining frame 170 that restricts the translation of the folding bed 100 along the floor of the emergency vehicle, thereby selectively preventing the folding bed 100 from being unloaded from the emergency vehicle.

[0020]

[0049] The head section 160 further includes a rod 163 and a crossbar 157 that connect together the two side rails of the support frame 102. As described above, in some embodiments, the length of the folding bed 100 may be adjusted by extending the head section 160 away from the patient bed 103 or by pushing the head section 160 toward the patient bed 103.

[0021]

[0050] Referring to Figure 4, the second rail 165 may include a plurality of locking openings 165-9 corresponding to different lengths of the folding bed 100. A locking coupling mechanism assembly 166 (see Figures 5D to 5I) is disposed inside the second rail 165. As will be described in more detail below, the distal end of the locking coupling mechanism assembly 166 includes a locking pin 165-3 disposed inside one of the locking openings 165-9 to lock the position of the first rail 164 relative to the second rail 165 (see Figure 5J). When the handle is actuated, the locking pin 165-3 is pulled out from the locking opening 165-9, allowing the first rail 164 to translate inside the second rail 165.

[0022]

[0051] Referring here to Figures 5A and 5B, improved designs of handle assemblies 169 and 166 (see Figures 5D-5I) for unlocking the first rail 164 from the second rail 165 to extend and retract the folding bed 100 are shown. The handle assembly 169 includes a handle body 171 attached to the rod 163 at location 175. The handle body 171 may comprise an upper and lower shell that are fitted together to surround the rod 163 and the crossbar 157. Figure 5A shows the handle body 171 including both shells, and Figure 5B shows only the lower shell of the handle body 171. The upper shell may function as a cover for components that are maintained inside the handle body 171.

[0023]

[0052] The location 175 where the handle body 171 is attached to the bar 163 is defined by an arm 171-1 having an inner surface adapted to receive the bar 163. The handle body 171 is configured to be attached to the crossbar 157 at location 172 and to be operable to receive the crossbar 157. Fasteners such as screws may be used to attach the handle body 171 to the crossbar 157 at location 172.

[0024]

[0053] The handle actuator 173 is positioned between the two arms 171-1 of the handle body 171 and is coupled to the handle body 171 so as to translate back and forth along the Y-axis when pulled or released by the user. The handle actuator 173 is centered relative to the first rail 164 so that it is easily accessible to the user operating the folding bed 100. When the user pulls the handle actuator 173 toward the rod 163, the locking pin 165-3 is pulled out from the locking opening 165-9 of the second rail 165, allowing the first rail 164 to translate inside the second rail 165, thereby allowing the user to adjust the length of the folding bed.

[0025]

[0054] Referring here to Figures 5B and 5C, the handle assembly 169 further includes two first connecting arms 174, each having a first end coupled to a pivot point P and a second end coupled to a cable further coupled to a locking coupling mechanism assembly. The handle assembly 169 also includes a second connecting arm 159 coupled to the pivot point P, the two first connecting arms 174, and a handle actuator 173. A portion of the second connecting arm 159 is provided with a slot S at the distal end of the handle actuator 173, allowing the second connecting arm 159 to rotate when the handle actuator 173 is pulled by the user. For example, each of the second connecting arms 159 may include a peg disposed inside the slot S of the handle actuator 173. In some embodiments, the first connecting arms 174 and the second connecting arms 159 are formed from a single, integrated component. The first connecting arm 174 and the second connecting arm 159 are collectively referred to as the "connecting section" in this specification.

[0026]

[0055] The handle assembly 169 includes two actuator assemblies 176-1, each containing a cable 176-7 terminated by a ball joint 176-6. The ball joint 176-6 is disposed within a slot or groove of the first connecting arm 174. In the illustrated embodiment, each actuator assembly 176-1 is secured to the handle body 171 by a mounting bracket 176-3 extending from the floor surface of the handle body 171. The mounting bracket 176-3 has an opening through which the actuator assembly 176-1 is disposed. The actuator assembly 176-1 in the illustrated embodiment includes a threaded end 176-5, which is secured to the mounting bracket 176-3 by a nut 176-4. The cable 176-7 freely translates within the jacket of the actuator assembly 176-1. In other embodiments, it should be understood that the actuator assembly 176-1 does not include a cable, but rather includes other components that allow the distal device to extend and retract, such as a series of coupling mechanisms or elastic materials.

[0027]

[0056] Pulling the handle actuator 173 toward the rod 163 rotates the second connecting arm 159 toward the crossbar 157 around the pivot point P, and also rotates the first connecting arm 174 toward each other around the pivot point P, pulling the cable 176 toward each other. When the cable 176 is pulled toward each other, the locking pin 165-3 is pulled out of the locking opening 165-9, as will be described in more detail below. Releasing the handle actuator 173 causes it to translate away from the rod 163 and return to the nominal non-acting position, and then rotates the first connecting arm 174 and the second connecting arm 159 toward the nominal non-acting position to remove the pulling force on the cable 176 and push the locking pin 165-3 into their respective openings 165-9.

[0028]

[0057] Referring here to Figures 5D and 5E, the locking coupling mechanism assembly 166 at the distal end of the first rail 164 is shown. It should be noted that the second rail 165 is not shown in Figures 5D and 5E in order to show the locking coupling mechanism assembly 166. The locking coupling mechanism assembly 166 includes a coupling mechanism housing 164-1 which includes a first half 164-2 and a second half 164-3 that surround the distal end of the first rail 164. The coupling mechanism housing 164-1 may be manufactured, for example, from molded plastic. It is set to a size that allows it to translate inside the second rail 165. As shown in Figure 5E, the second half 164-3 has an opening 165-10 through which a locking pin 165-3 extends.

[0029]

[0058] Figure 5F is a perspective view of the locking coupling mechanism assembly 166, showing the components with the first half 164-2 removed and retained inside the coupling mechanism housing 164-1. The cable 176-7 is positioned inside a groove 178 of the second half 164-3 (not shown, similar to the first half 164-2) and terminates in the coupling portion 165-8. The second half 164-3 includes a recess 164-9 in which the slider body 164-4 is positioned. The recess 164-9 is sized so that the slider body 164-4 can translate back and forth within it. In this embodiment, the coupling portion 165-8 is integral with the slider body 164-4 such that the coupling portion 165-8 extends from the side of the slider body 164-4. The locking coupling mechanism assembly 166 further includes a sleeve 176-8 in which the cable 176-7 is disposed. The coupling portion 165-8 can be operated to slide back and forth along the sleeve 176-8 when the user activates and deactivates the handle actuator 173.

[0030]

[0059] The sliding body 164-4 further includes a longitudinal slot 164-5 for receiving a locking pin 165-3, a cross pin 165-4, a guide 165-6, and a pin retainer body 167. The longitudinal slot 165-5 allows the sliding body 164-4 to move back and forth relative to the locking pin 165-3, the cross pin 165-4, the guide 165-6, and the pin retainer body 167.

[0031]

[0060] Figure 5G shows the locking coupling mechanism assembly 166 with the slider body 164-4 removed. The pin retainer body 167 is integral with the second half 164-3 of the housing 164-1. Thus, the pin retainer body 167 may be a molded feature of the second half 164-3 of the housing 164-1. The pin retainer body 167 may be located in the center inside the recess 164-9. The cable 176-7 is terminated by a coupling end 176-5 having a threaded portion. The coupling 165-8 includes a threaded portion (not shown) that receives the threaded coupling end 176-5 of the cable 176-7 for attaching the cable 176-7 to the coupling 165-8.

[0032]

[0061] The pin retainer body 167 has at least one slot 167-2 in which the cross pin 165-4 of the locking pin 165-3 is positioned. The exemplary pin retainer body 167 also includes two cover portions 167-3 surrounding the guide 165-6. As shown in Figure 5H, the guide 165-6 is operable to be positioned inside the guide opening 167-1 of the first half 164-2 of the housing 164-1. The guide 165-6 is also inserted into the hollow cavity of the locking pin 165-3 so that the locking pin 165-3 is operable to translate on the guide 165-6. The first half 164-2 of the housing also includes a cover recess 165-7 that receives the cover portion 167-3 of the second half 164-3 when the first half 164-2 is coupled to the second half 164-3 of the housing 164-1. A biasing spring may be disposed in the guide 165-6 between the inner surface of the first half 164-2 and the end of the locking pin 165-3. The biasing spring biases the locking pin 165-3 to the extended position so that it returns to the extended position when the handle actuator is released by the user.

[0033]

[0062] Referring here to Figure 5I, the upper surface 164-7 and the opposite lower surface of the slider body 164-4 include cam recesses 165-1. The cross pin 165-4 is disposed inside both cam recesses 165-1. Each cam recess 165-1 includes a tapered cam surface 164-8 to provide a locking pin extension area E and a locking pin storage area R. Figure 5I shows the slider body 164-4 and locking pin 165-3 in the extended position. The cross pin 165-4 is located inside the locking pin extension area E, and the locking pin 165-3 is biased forward in the extended position through a slot 165-2 in the slider body 164-4 (e.g., by a biasing spring). Since the guide 165-6 is positioned inside the opening in the first half 164-2 of the housing 164-1, and the locking pin 165-3 is positioned through the opening 165-10 in the second half 164-3 of the housing 164-1, the cross pin 165-4 and the locking pin 165-3 do not translate along the x-direction as shown in Figure 5I. When the user pulls the handle actuator 173, the cable 176-7 pulls the slider body 164-4 so that the slider body 164-4 is translated along the negative Y-axis. The cross pin 165-4 moves to slide along the cam surface 165-1. The tapered cam surface 165-1 causes the cross pin 165-4 to move in the negative X-axis direction, pulling the locking pin 165-3 in the negative X-axis direction, thereby retracting the locking pin 165-3 from the locking opening 165-9 of the second rail 165, as shown in Figure 5J. Once the locking pin 165-3 is retracted from the locking opening 165-9, the first rail 164 is free to translate within the second rail 165 to adjust the length of the folding bed 100. When the user releases the handle actuator 173, the locking pin 165-3 is biased to the extended position and, when aligned with the opening, moves into the opening of the second rail 165. In this way, the user can adjust the length of the folding bed 100 using the handle actuator 173.

[0034]

[0063] Referring here to Figure 6A, the folding bed 100 of the present disclosure may include a directional wheel locking assembly that prevents the wheel 108 from swiveling when in operation. The directional wheel locking assembly includes two pedals 177, a crossbar 178, and a coupling mechanism assembly 179. When the pedals 177 are pushed by the user's foot in the locking direction, the coupling mechanism assembly 179 is driven to lock the wheel 108, preventing the wheel from swiveling, although the wheel may still rotate to allow longitudinal movement of the folding bed 100. When the pedals 177 are pushed by the user's foot in the unlocking direction, the coupling mechanism assembly 179 is driven to unlock the wheel 108, allowing the wheel to swivele and thus enabling lateral movement of the folding bed 100. The crossbar 178 is configured such that the operation of one pedal 177 causes the other pedal 177 to operate in the same manner.

[0035]

[0064] Unlike conventional directional wheel locking mechanisms, the pedal 177 is not positioned directly above the wheel that is directionally locked. Rather, the pedal 177 is offset from the wheel by the coupling mechanism assembly 179 and positioned on the base member 109. As a non-restrictive example, the pedal 177 may be offset by a distance of 10 centimeters or more from the wheel. This portion of the pedal 177 is more accessible to the user. However, it should be understood that the pedal 177 may be positioned at any position along the base member 109.

[0036]

[0065] Figure 6B shows an exemplary directional wheel locking assembly having a connecting rod 179-1, an actuation plate 179-2, an actuation plunger 179-4, and an actuation pin 179-5. Figure 6B shows the directional wheel locking assembly in the unlocked state. Each connecting rod 179-1 is coupled to a crossbar 178 and / or individual pedals 177, and the actuation of the pedals 177 by the user causes the connecting rods 179-1 to translate toward or away from the wheel 108, depending on the direction in which the pedals 177 are actuated by the user. Each connecting rod 179-1 is coupled to the end 179-7 of an actuation pin 179-5, which is disposed through an upper opening 179-11 of the actuation plunger 179-4.

[0037]

[0066] When pedal 177 is activated, the connecting rod 179-1 moves toward the wheel 108, rotating the actuation pin 179-5, which is then lowered and set in the recess 179-3 of the actuation plate 179-2. The recess 179-3 of the actuation plate 179-2 has a tapered wall 179-12 that guides the actuation pin 179-5 both inside and outside the recess 179-3. In the illustrated embodiment, the connecting rod 179-1 has a bent portion 179-14 that bends around the portion of the actuation plate 179-2 that has the recess 179-3.

[0038]

[0067] Referring to Figure 6C, the actuating plunger 179-4 passes through the wheel cover 179-6. When the actuating pin 179-5 is set in the recess 179-3, the actuating plunger 179-4 is lowered and positioned inside the locking opening 179-9 of the wheel locking plate 179-8. When the actuating plunger 179-4 is positioned inside the locking opening 179-9, it prevents the wheels of the folding bed from swiveling. The actuating plunger has an end 179-13 that has a shape corresponding to the shape of the locking opening 179-9. By returning the pedal 177 to the unlocked position, the actuating pin 179-5 rotates, disengaging the pin from the recess 179-3 and moving the actuating plunger 179-4 upward from the locking opening 179-9.

[0039]

[0068] It should be noted that the directional control wheel locking mechanism of this disclosure may also be used in other wheeled devices such as wheelchairs, tables, and carts.

[0040]

[0069] As described above, the folding bed 100 of this disclosure is operable to be loaded and secured inside the cargo area of ​​an emergency vehicle such as an ambulance. The cargo area may include a folding bed loading system for receiving and securing the folding bed. The folding bed disclosed herein includes a structure that can be released and securely coupled to one or more receivers inside the folding bed loading system.

[0041]

[0070] Referring here to Figure 7, an exemplary folding bed 100 and an exemplary folding bed fastening system 180 are schematically shown, coupled to the floor of an emergency vehicle 200 in the cargo area. Embodiments of the present disclosure are not limited to the configuration and type of the folding bed fastening system 180, as the folding bed described herein may be fastened to different types of folding bed fastening systems.

[0042]

[0071] An exemplary folding bed fastening system 180 in Figure 7 includes a trolley 184 that travels linearly along a fixed rail 186 fixed to the floor of the cargo area of ​​an emergency vehicle 200. The trolley 184 includes an arm 182 that is operable to be raised up to and in contact with the underside of the folding bed 100 to support the folding bed, so that the base 106 can be raised toward the support frame 102. Once the arm 182 supports the folding bed 100 and the base 106 is fully folded, the trolley 184 moves backward into the cargo area, thereby moving the folding bed 100 into the cargo area of ​​the emergency vehicle 200. The fastening support assembly 110 of the folding bed 100 (see Figure 10B) is then positioned inside a receiver on the fixed rail 186 to fasten the folding bed 100 to the fixed rail 186 inside the cargo area.

[0043]

[0072] Figure 8 shows an unrestricted example of a fixed rail 186 of a folding bed loading system 180. Generally, the fixed rail 186 includes a trolley fastener 188 that is operable to releasably lock a trolley 184 to the fixed rail 186, and a fastener 190 that receives the fastener support assembly 110 of the folding bed 100 to releasably fix the folding bed 100 to the fixed rail 186. By providing the fastener 190 on the fixed rail 186, a fixed point (i.e., a point on the folding bed loading system 180) for fastening the folding bed is provided, thus providing a stable locking point. The folding bed loading system 180 further includes a movable support beam 189 extending from the fixed rail 186 to support the trolley 184 in its fully extended position.

[0044]

[0073] Figure 9 is a close perspective view of the fixed rail 186, showing the fastener 190 and the support beam 189 in its stowed position (i.e., positioned inside the fixed rail 186). The fastener 190 includes a slanted portion 194 and a slot 192 at the end of the slanted portion 194. The slanted portion 194 raises the height of the slot 192 compared to the end of the fixed rail. The slot 192 has a wide opening 195 and a narrow portion 196. The wide opening 195 helps guide the fastener support assembly 110 into the narrow portion 196. The fastener 190 further includes a latch 193 that releasably locks the fastener support assembly 110 into the fastener 190 in order to secure the folding bed 100 to the folding bed loading system 180. The latch 193 may release the fastener support assembly 110 by a connecting mechanism (not shown) coupled to a release button 181 on the support beam 189. The latch 193 releases the fastener support assembly 110 when the user presses the release button 181.

[0045]

[0074] Referring here to Figure 10A, a non-restrictive example of the fastener support assembly 110 is shown. The fastener generally includes a support 146 for connecting the fastener support assembly 110 to the frame of the folding bed 100, and two locking tabs 125A (not visible in Figure 8A), 125B that are biased inward toward each other. In the non-operational state, the locking tabs 125A, 125B are retracted, and most of them are positioned behind a protective portion 151 of the front plate 148. The protective portion 151 protects the locking tabs 125A, 125B and prevents unintended contact with other objects. As will be described in more detail below, upward movement of the actuator body 113 causes the locking tabs 125A, 125B to move outward toward each other in the extended position. Referring briefly to Figure 7, when the folding bed 100 is manually loaded into the folding bed fastening system 180, the actuator body 113 contacts the inclined portion 194 and moves upward toward the support frame of the folding bed 100, and the locking tabs 125A and 125B move to their extended positions. When the folding bed 100 is automatically loaded using the arm 182, the fastening support assembly 110 is lowered into the latch 193 and the actuator body 113 does not contact the inclined portion 194. In order to secure the folding bed 100 to the folding bed loading system 180, the locking tabs 125A and 125B engage with the projection edge portion of the slot 192 and the latch 193 so that the fastening support assembly 110 is locked into the fastener 190.

[0046]

[0075] Figure 10B shows an exemplary fastener support assembly 110 that is coupled to the support frame of the folding bed by a bracket 197. The bracket 197 is configured to position the bottom of the actuator body 113 so that the actuator body 113 is at the correct height relative to the slanted portion 194 of the fastener 190, so that when the folding bed 100 is manually loaded into the folding bed fastener system 180, the actuator body 113 contacts the slanted portion 194 and is pushed upward toward the support frame, deploying the locking tabs 125A, 125B, and / or the actuator body 113 contacts the bottom surface of the latch 193 and deploys the locking tabs 125A, 125B when the folding bed 100 is automatically loaded into the folding bed fastener system 180 by the arm 182.

[0047]

[0076] Here, additional components of the exemplary fastener support assembly 110 are described.

[0048]

[0077] Figure 11 shows an exploded view of some components of an exemplary fastener post assembly 110. The fastener post assembly 110 includes an overall U-shaped actuator body 113 having a main portion 114, a first biasing member portion 115, and a second biasing member portion 116. The first biasing member portion 115 and the second biasing member portion 116 extend upward from the main portion 114 and define the overall U-shape. In the illustrated embodiment, the length of the second biasing member portion 116 is greater than the length of the first biasing member portion 115.

[0049]

[0078] The main section 114 includes a first coupling seat 121A and a second coupling seat 121B, separated by a partition 120. The first coupling seat 121A and the second coupling seat 121B are configured to receive a pair of actuator couplings 111 that actuate locking tabs 125A and 125B, as will be described in more detail below. Of each pair of actuator couplings 111, one is coupled to the first locking tab 125A and the other to the second locking tab 125B. Thus, each pair of actuator couplings 111 is angled in different directions. Each actuator coupling 111 includes a first through hole 112A and a second through hole 112B for securing the actuator coupling 111 to the actuator body 113 and the first and second locking tabs 125A and 125B. Each of the first coupling seat 121A, the partition 120, and the second coupling seat 121B includes a through hole for receiving a pivot pin 119. The actuator coupling 111 is stacked on the respective first coupling seat 121A and second coupling seat 121B, with their second through holes 112B aligned with each other and with respect to the through hole 118 of the actuator body 113. The pivot pin 119 is disposed through the through hole 118 of the actuator body 113 and the second through hole 112B of the actuator coupling 111, pivotably connecting the actuator coupling 111 to the actuator body 113. The actuator coupling 111 has an axis of rotation about a pivot point defined by the pivot pin 119.

[0050]

[0079] The main portion 114 of the actuator body 113 has a tapered surface T that is narrowed to contact the inclined portion 194 of the fastener 190, so that the actuator body 113 is prompted to move in both a linear direction parallel to the fixed rail 186 and a vertical direction perpendicular to the fixed rail 186 to actuate the locking tabs 125A and 125B.

[0051]

[0080] The first biasing member portion 115 has a first biasing member slot 117 on its outer surface for receiving the first biasing member 137A (Figure 14). The second biasing member portion 116 has a second biasing member slot 124 for receiving the second biasing member 137B (Figure 13). The first and second biasing members 137A and 137B bias the actuator body 113 downward away from the support frame of the folding bed 100, as will be described in more detail below.

[0052]

[0081] Referring here to Figure 12, a partially exploded view of the assembled actuator body 113 and actuator connector 111 is shown, along with the first locking tab 125A and the second locking tab 125B. Each locking tab 125A, 125B has a hook 128 defined by a tapered surface 129 and a flat engaging surface 130 that can be operated to engage with a slot 192 of the fastener 190. Each locking tab 125A, 125B also further includes a tapered surface 127 that is tapered to reduce the width of the locking tab 125A, 125B in proximity to the opening 133 of the body 126 and the hook 128. The inner surface of the locking tab 125A, 125B opposite the hook 128 has a groove 132 for receiving the upper portion of the actuator connector 111. The through hole 131 is positioned through the locking tabs 125A and 125B and passes through the groove 132 so that the through hole 131 aligns with the first through hole 112A of the actuator coupling portion 111.

[0053]

[0082] Referring here to Figure 13, a first alignment pin 135 is positioned inside the through holes 131 of the first and second locking tabs 125A, 125B and the first through hole 112A of the actuator connector, securing the first and second locking tabs 125A, 125B to the actuator connector 111. Figure 11 further shows the rear plate 136. The rear plate 136 includes an offset fitting surface 140 offset from the remaining portion of the surface of the rear plate 136. The offset fitting surface 140 is configured to contact the first and second locking tabs 125A, 125B. Two blind holes 139 are positioned inside the offset fitting surface 140 of the rear plate 136. The first and second locking tabs 125A and 125B are coupled to the rear plate 136 by a second alignment pin 134 disposed inside the openings 133 of the first and second locking tabs 125A and 125B and the blind holes 139 of the rear plate 136.

[0054]

[0083] The rear plate 136 further includes a second biasing member slot 138 positioned below the blind hole 139 in the direction toward the actuator body 113. A first biasing member 137A, which may be configured as a spring, is disposed inside the second biasing member slot 138 of the rear plate 136 and the second biasing member slot 124 of the actuator body 113. The biasing member is compressed to bias the actuator body 113 toward downward away from the rear plate 136.

[0055]

[0084] The rear plate 136 further includes a hole 141 for receiving a fastener 154, as will be described in more detail below with reference to Figure 13. An exemplary rear plate 136 also has a flange 137 extending rearward away from the offset mating surface 140. The flange 137 has an opening 147 for receiving an anti-rotation pin 153 (Figure 13) that prevents the fastener support assembly 110 from rotating relative to the folding bed 100.

[0056]

[0085] Referring now to Figure 14, the first biasing member 137A, such as a spring, is positioned inside the first biasing member slot 117. The first biasing member 137A is compressed to bias the actuator body 113 away from the first and second locking tabs 125A and 125B.

[0057]

[0086] The fastener support assembly 110 further comprises a support body 142 including a support 146 extending from the top surface 145. As described above, the support 146 is used to connect the fastener support assembly 110 to the folding bed 100. The support 146 may have, for example, a screw hole 154 for receiving fasteners to connect the fastener support assembly 110 to the folding bed 100.

[0058]

[0087] The support column body 142 further has two arms 143A, 143B having inner surfaces that define recesses 155 shaped to receive the main body 126 of the first and second locking tabs 125A, 125B. A through hole 144 is provided for connecting the support column body 142 to the rear plate 136. The through hole 144 is aligned with a blind hole 141 in the rear plate 136 during assembly.

[0059]

[0088] Referring here to Figure 15, the fastener support assembly 110 further includes a front plate 148. The front plate has a body 152 which may be shaped to align with the shapes of the arms 143A, 143B of the support body 142. The body 152 has a through hole 149 which aligns with a through hole 144 of the support body 142 during assembly. The fastener 154 may be positioned in the through holes 149, 144, and 141 to fasten the front plate 148, the support body 142, and the rear plate 136 together. The through holes 149, 144, and 141 may or may not have threads (for example, bolts are screwed onto the fastener 154 in the rear plate 136). The hole 141 may be a through hole or a blind hole.

[0060]

[0089] The front plate 148 further includes a protective portion 151 that extends downward from the main body 152 toward the actuator body 113. During assembly, the protective portion 151 at least partially covers the hooks of the first and second locking tabs 125A, 125B. This protects the first and second locking tabs 125A, 125B when they are retracted and inoperable. By biasing the first and second locking tabs 125A, 125B inward and protecting them with the protective portion 151, it is possible to prevent the first and second locking tabs 125A, 125B from inadvertently getting caught on unintended objects. It should be noted that the front plate 148 further includes a projection 150 that forms a gap for accommodating the second biasing member 137B.

[0061]

[0090] Referring again to Figure 10A, the assembled fastener support assembly 110 is shown. The first and second locking arms 125A, 125B are shown in a non-operational and retracted state. The first and second biasing members and the actuator coupling bias the first and second locking arms 125A, 125B inward toward each other. When the fastener support assembly 110 is positioned inside the fastener 190, the actuator body 113 is pressed upward toward the front plate 148 and the rear plate 136. Referring to both Figure 10A and Figure 12, the upward movement of the actuator body 113 causes the actuator coupling 11 to rotate around the pivot pin 119 such that the upper portions of the actuator couplings spread outward toward each other. The upper portion of the actuator coupling 111 is coupled to the first and second locking arms 125A and 125B, so this movement of the actuator coupling 111 causes the first and second locking arms 125A and 125B to move outward and away from each other in the activated state. When the fastener support assembly 110 is removed from the fastener 190, the first and second biasing members 137A and 137B push the actuator body 113 back to its biased deactivated state, bringing the first and second locking arms 125A and 125B closer to each other and at least partially positioned behind the protective portion 151.

[0062]

[0091] Referring now to Figure 15A, another embodiment of the fastener support assembly 110' is shown. In particular, Figure 15A shows a first fastener support assembly 110'-1 that engages with the fastener 190 from above, as indicated by arrow A, and a second fastener support assembly 110'-2 that engages with the fastener 190 laterally, as indicated by arrow B. Figure 15B shows a fastener support assembly 110' that is fixed to the fastener 190 either laterally, as shown by fastener support assembly 110'-2, or vertically, as shown by fastener support assembly 110'-1. Thus, Figures 15A and 15B show how the fastener support assembly 110' can be fitted to the fastener 190 in two directions.

[0063]

[0092] The fasteners 110'-1 and 110'-2 in Figures 15A and 15B are similar to the fastener support assembly 110 shown in Figures 10A to 15, but further include additional components to provide greater rigidity and connection to the receiver. The fasteners 110'-1 and 110'-2 (collectively referred to as the fastener support assembly 110') have a cover 150' extending from the front of the body 152'. When locked to the fastener 190, the cover 150' rests on the surface of the fixing rail 186 of the fastener 190, preventing the fastener support assembly 110' from rotating about the y-axis. Thus, the cover 150' prevents the fastener support assembly 110' from swaying back and forth when an emergency vehicle is crossing uneven terrain or when an emergency vehicle is involved in an accident. The cover 150' enhances the stability of the connection between the fastener support assembly 110' and the fastener 190.

[0064]

[0093] Figure 15C shows an exemplary fastener support assembly 110' in a front perspective view. Referring together to Figures 15A to 15C, the exemplary fastener support assembly 110' also includes a locking mechanism that includes a locking button 156' which prevents the locking tabs 125A' and 125B' from moving inward when the locking mechanism is locked. Thus, the locking mechanism prevents accidental disengagement of the fastener support assembly 110' from the fastener 190. When the fastener support assembly 110'-1 is lowered into the fastener 190 in the direction indicated by arrow A, the locking button 156' slides vertically into the recess defined by the cover 150'. In addition, the actuator body 113' moves vertically as described above, thereby allowing the locking tabs 125A' and 125B' to rotate outward. By moving the locking button 156' into the cover 150', the fastener support assembly 110'-1 becomes locked, thereby preventing the locking tabs 125A' and 125B from rotating inward. Similarly, when the fastener support assembly 110'-2 is slid laterally onto the fastener 190 as indicated by arrow B, the locking button 156' slides upward into the recess defined by the cover 150', and the starter body 113' also moves upward, causing the locking tabs 125A' and 125B to rotate outward.

[0065]

[0094] Figure 15D shows a rear view of the fastener support assembly 110' in a non-activated and disengaged state. As shown, the actuator body 113' extends below the locking tabs 125A', 125B' which rotate inward. Figure 15E shows the fastener support assembly 110' in an activated and locked state. The actuator body 113' is pushed up (for example, by contact with the surface of the fastener 190), which causes the locking tabs 125A', 125B to rotate outward and engage with the fastener 190, locking the fastener support assembly 110' to the fastener 190.

[0066]

[0095] Figure 15F is a front perspective view of the fastener support assembly 110' with the main body 152' and cover 150' removed. Since both the actuator body 113' and the locking button are in a deactivated state, the fastener support assembly 110' is not locked to the receiver in Figure 15F. As described above, the locking button 150' is operable to translate vertically along the Z-axis. The locking button 150' is biased downward in the negative z-axis direction by a pair of biasing springs (not shown) mounted on the locking button spring seat 199'. The locking button 150' has a tapered front end 201' that can contact the surface of the receiver so that it is translated upward when the locking button 150' is slid laterally into the fastener 190.

[0067]

[0096] Referring briefly to Figure 15G, the end of the locking button 150' opposite the tapered front end 201' is a cam surface 187'. The cam surface 187' is operable to contact the cam-following member 162' of the slider 183'. The cam surface 187' is shaped such that when the locking button 150' is moved upward along the positive z-axis, it pushes the cam-following member 162' and the slider 183' forward along the positive x-axis.

[0068]

[0097] Referring again to Figure 15F, the slider 183' includes a cam-following member 162' and two locking pins 158' biased forward along the positive x-axis by a pair of pin-biasing springs 185'. A slider return spring 198' is provided between the surface of the slider 183' and the inner surface of the front plate (not shown in Figure 15F). The slider return spring 198' allows the slider 183' to move backward along the negative x-axis when the locking button 156' is not activated and moves downward to the unlocked position.

[0069]

[0098] In the non-activated state shown in Figure 15F, the end of the locking pin 158' is pressed against or nearly in contact with the front of the upper portion of the actuator body 113'. The actuator body 113' also includes a pair of pin slots 191' that are operable to receive the locking pin 158' when both the actuator body 113' and the locking button 156' are pushed upward along the positive z-axis.

[0070]

[0099] Since the locking button 156' is positioned in front of the actuator body 113', it is translated upward by the surface of the fastener 190 in front of the actuator body 113'. Figure 15H shows the locking button 156' in the activated state (i.e., pushed up along the positive z-axis) and the actuator body 113' in the deactivated state. In the activated state, the cam surface 187' pushes the cam follower member 162' and the slider 183' toward the actuator body 113' so that the locking pin 158' is pressed against the upper part of the actuator body 113', since the actuator body 113' has not yet risen. The pin biasing spring 185' is compressed in this state.

[0071]

[0100] Figure 15I shows the fastener support assembly 110' when both the locking button 156' and the actuator body 113' are in the activated state (i.e., the fastener support assembly 110' is locked to the fastener 190). The slider 183' is still pushed forward by the cam surface 187' of the locking button 156'. The actuator body 113' is now pushed upward in the positive z-axis direction. In this position of the actuator body 113', the pin slot 191' aligns with the locking pin 158'. The pin biasing spring 185' is compressed, pushing the locking pin 158' toward the actuator body 113' and engaging with the pin slot 191'. The locking pin 158' prevents the actuator body 113' from moving downward, thus keeping the fastener support assembly 110' locked to the fastener 190. In this way, the locking mechanism can maintain the fastener support assembly 110' in a locked state even when the emergency vehicle is traveling on uneven terrain or is involved in an accident.

[0072]

[0101] When the fastener support assembly 110' is removed from the fastener 190, the locking button 156' slides downward, changing the position of the cam-following member 162' on the cam surface 187'. The slider return spring 198' is compressed, causing the slider 183' and the locking pin 158' to move away from the actuator body 113', and the locking pin 158' is removed from the pin slot 191'. By removing the locking pin 158' from the pin slot 191', the actuator body 113' falls, and the locking arms 125A and 125B rotate inward, releasing the fastener support assembly 110' from the receiver.

[0073]

[0102] In some embodiments, the folding bed 100 includes a general-purpose mounting section 201 for connecting accessories to a support frame 102. Figure 16 shows two general-purpose mounting sections 291 that are fastened on a second rail 165. The general-purpose mounting section 291 may have a lower and upper portion so that it can be securely fastened on the second rail 165. Any number of general-purpose mounting sections 291 may be positioned on the second rail 165 at different locations. The general-purpose mounting section 291 has a dovetail configuration on its upper surface 208, which may be covered by a cover 209 when not in use, as shown in Figures 16 and 17. Figure 18 shows a surface extender 204 accessory that slides onto the general-purpose mounting section 291. Any type of accessory can slide onto the general-purpose mounting section 291. Each accessory has a corresponding mating feature configured to fit with the dovetail-shaped surface of the general-purpose mounting section 291.

[0074]

[0103] In some embodiments, the folding bed 100 may have a rechargeable battery that is charged when positioned inside the fastening system 180. Two folding bed contacts mate with two fastening system contacts to supply current to the battery. Figure 19 shows an exemplary fastening system 190 having two fastening system contacts 210 on either side of the starting surface 194. These fastening system contacts 210 are positioned and configured to mate with corresponding folding bed contacts or charging pins and are electrically coupled to a power source associated with the emergency vehicle, such as the emergency vehicle's main battery.

[0075]

[0104] The folding bed contacts may have a variety of different configurations. Figures 19A and 19B show an exemplary folding bed charging assembly 220 that can be operated to engage with the fastener system contact 210. Figure 19A shows the folding bed charging assembly 220 in a disengaged state (i.e., the fastener support assembly 110 is not inside the fastener 190), and Figure 19B shows it in an engaged state (i.e., the fastener support assembly 110 is inside the fastener 190). In this example, the folding bed charging assembly 220 is attached to the rear plate 136 of the fastener support assembly 110. This allows the folding bed charging assembly 220 to follow the fastener support assembly 110 when the folding bed 100 is loaded into the fastener system 180. In other embodiments, the folding bed charging assembly 220 is not attached to the rear plate.

[0076]

[0105] The folding bed charging assembly 220 includes an activation lever 222 positioned and configured to contact the activation surface 194 of the fastener 190, and two folding bed charging contacts 224 configured as pins coupled to the main body 223 by a coupling mechanism 225. The force applied to the activation lever 222, which is the activation lever that contacts the activation surface 194, raises the activation lever 222, and the coupling mechanism further rotates and pivots the folding bed charging contacts 224 forward toward the fastener support assembly 110. This causes the end faces of the folding bed charging contacts 224 to contact the two fastener system contacts 210, providing an electrical connection between them. The two folding bed charging contacts 224 are electrically coupled to a battery (not shown) of the folding bed 100. Current flows from the emergency vehicle's power supply to the folding bed 100's battery through electrical contact between the two fastener system contacts 210 and the two folding bed charging contacts 224. When the folding bed 100 is detached from the folding bed fastening system 180, the folding bed charging contacts 224 retract and move away from the fastener support assembly 110 by swinging.

[0077]

[0106] Referring now to Figures 20A to 20D, another exemplary folding bed charging assembly 220' is shown. Figure 20A shows the folding bed charging assembly 220' fully assembled in the disengaged state, and Figure 20B shows the folding bed charging assembly 220' fully assembled in the engaged state. Figures 20C and 20D are the same figures as Figures 20A and 20B, but with some components removed.

[0078]

[0107] The folding bed charging assembly 220' includes two folding bed charging contacts 224' configured as pins disposed inside the base of the coupling mechanism and roller assembly 226. The folding bed charging contacts 224' may have biasing members that fit inside holes in the coupling mechanism and roller assembly 226 to bias the folding bed charging contacts 224' toward the fastener system contacts 210. The folding bed charging assembly 220' further includes an activation lever 222' and a plate 227 having grooves on which the rollers of the coupling mechanism and roller assembly 226 are mounted. When an upward force is applied to the activation lever 222', the coupling mechanism and roller assembly 226 translate linearly toward the fastener support assembly 110 (not shown). This causes the folding bed charging contacts 224' to contact the fastener system contacts 210.

[0079]

[0108] Figures 21A and 21B show another exemplary folding bed charging assembly 220”. In this example, the starting lever 222” is a support that is pivotally coupled to the folding bed mounting section 232 by a first coupling section 230. The folding bed mounting section 232 is firmly coupled to the surface of the folding bed, while the starting lever 222” moves freely up and down by the first coupling section 230. The folding bed charging contact 224” is coupled to the first coupling section 230 and the folding bed mounting section 232 by a second coupling section 234. For the sake of illustration, only one of the folding bed mounting section 232, the starting lever 222”, the first coupling section 230, the second coupling section 234, and the folding bed charging contact 224” is shown, and it should be understood that other sets of these components are provided to enable charging of the folding bed's battery.

[0080]

[0109] Figure 21A shows the folding bed charging assembly 220” in the disengaged state. Due to the weight of the activation lever 222” the folding bed charging contact 224” moves upward in the disengaged state. As shown in Figure 21B, when the bottom of the activation lever 222” contacts the activation surface 194, the activation lever 222” moves upward, causing the first coupling portion 230 and the second coupling portion 234 to rotate and swing the folding bed charging contact 224” downward toward the fastener system contact 210 (not visible in Figures 21A and 21B), as indicated by the arrows. When the folding bed 100 is removed from the fastener system 180, the activation lever 222” moves downward due to gravity, causing the folding bed charging contact 224” to swing upward from the engaged state to the disengaged state.

[0081]

[0110] Figures 22A–22P show another exemplary folding bed charging assembly 320. As will be described in more detail below, in this embodiment the charging pin 324 rotates between an engaged and disengaged state. Referring particularly to Figure 22A, the exemplary folding bed charging assembly 320 generally includes an outer housing 322 (also referred herein as the first housing or upper body), an inner housing 330 (also referred herein as the second housing or inner body), and a pair of charging pins 324. The outer housing 322 includes a mounting portion 326 which is configured as a mounting bracket having holes that align with holes in components of a fastener support assembly, such as the rear plate 136 of the fastener support assembly 110 shown in Figures 11–15.

[0082]

[0111] The outer housing 322 is coupled to the inner housing 330 so that the inner housing 330 is positioned inside the recess 346 (see Figure 22K), and is freely translated along the Z-axis towards the inner surface 343 of the outer housing 322 within the recess 346. A pair of charging pins 324 are positioned inside a pair of charging pin notches 331 of the inner housing 330. When the inner housing 330 is pushed into the recess 346 of the outer housing 322, for example by contact with the surface of a fastener installed inside the emergency vehicle, the arched charging pins 324 rotate outward toward each other so that they extend from the charging pin notches 331 in the positive Y-axis direction. In this way, the inner housing 330 functions as the actuator portion of the foldable bed charging assembly 320.

[0083]

[0112] Figures 22B and 22C show the foldable bed charging assembly 320 of Figure 22A in a disengaged (i.e., non-operating) state, in perspective and bottom view, respectively. In the disengaged state, the charging pins 324 are retracted into the charging pin notches 331 of the inner housing 330. In this state, they are not exposed, preventing them from getting caught on other components or objects. As will be described in more detail below, each charging pin 324 is coupled to a pressing block 360 that pushes the charging pin 324 so that the charging pin 324 rotates into the engaged position.

[0084]

[0113] Figures 22D and 22E show the folding bed charging assembly 320 of Figure 22A in a partially engaged (i.e., partially actuated) state, in perspective and bottom view, respectively. In this state, as indicated by the arrow in Figure 22D, the inner housing 330 is forcefully pushed into the recess 346 of the outer housing 322. This force may be applied by the bottom surface of the inner housing 330 in contact with the surface of the fastener inside the emergency vehicle. Thus, the charging pin 324 is deployed by the contact between the folding bed charging assembly 320 and the fastener. As will be described in more detail below, the translation of the inner housing 330 in the positive Z-axis direction causes the pressing block 360 to translate in the positive Y-axis direction, rotating the charging pin 324 out of the charging pin notch 331. As shown in Figures 22D and 22E, the charging pins 324 are partially extended from the charging pin notch 331 because the inner housing 330 is only partially translated into the recess 346 of the outer housing 322.

[0085]

[0114] Figures 22F and 22G show the foldable bed charging assembly 320 of Figure 22A in a partially engaged (i.e., partially actuated) state, in perspective and bottom view, respectively. In this state, the force indicated by the arrow fully pushes the inner housing 330 into the recess 346 of the outer housing 322, and the pressing block 360 fully translates along the positive Y axis, fully rotating / extending the charging pin 324. In this state, the charging pin 324 contacts the contact 210 of the fastener (see Figure 19), supplying current between the charging pin 324 and the contact 210 for charging the foldable bed battery.

[0086]

[0115] In some embodiments, after the charging pin 324 is fully extended, the inner housing 330 can move further into the outer housing 322 to allow for additional movement for adjustment to accommodate height differences that the folding bed charging assembly may encounter. For example, height differences may occur due to different fastener configurations. Such height differences are caused by the inner housing 330 being able to move further within the recess 346 of the outer housing 322. Figure 22H shows a side view of the folding bed charging assembly 320 when the inner housing 330 has been translated sufficiently into the outer housing 322 to fully extend the charging pin 324. Figure 22I shows a side view of the folding bed charging assembly 320 when the inner housing 330 has been translated into the outer housing 322 beyond the distance required to fully extend the charging pin 324. In this position, the fasteners 325 (e.g., bolts) are pushed through openings in the top surface of the outer housing 322 so that a portion of their length is exposed. The area of ​​operation shown in Figure 22I may have a higher spring rate in order to first engage the pin and then move the inner housing 330 further.

[0087]

[0116] Next, the internal components of an exemplary folding bed charging assembly 320 will be described. Referring to Figure 22J, the folding bed charging assembly 320 is shown in a perspective view with the outer housing 322 removed. The inner housing 330 of the exemplary folding bed charging assembly 320 includes a first inner housing 332 (also referred to herein as the lower inner housing) and a second inner housing 334 (also referred to herein as the upper inner housing). The second inner housing 334 is fixed to the first inner housing 332 to capture the pressure block 360 so that the pressure block 360 translates along the Y axis in a recess between the first inner housing 332 and the second inner housing 334. The first inner housing 332 may be fixed to the second inner housing 334 by any means such as adhesive, welding, or fasteners such as screws, as shown in Figure 22J.

[0088]

[0117] The second inner housing 334 has a plurality of support columns 335 extending from its surface in the positive Z-axis direction. These support columns 335 are provided to guide the inner housing 330 as it translates through the interior of the outer housing 322 along the Z-axis. Figure 22K shows a bottom perspective view of the outer housing 322. The outer housing 322 defines a recess 346 in which the inner housing 330 is positioned. The outer housing 322 further includes a plurality of holes 345 (e.g., blind holes) inside its inner surface 343. When assembled, the plurality of support columns 335 are positioned within the plurality of holes 345. The depth of the plurality of holes 345 relative to the length of the plurality of support columns 335 is such that the inner housing 330 can move freely up and down within the recess 346 along the Z-axis.

[0089]

[0118] Figure 22L shows a top perspective view of the first inner housing 332. The first inner housing 332 includes a coupling mechanism recess 333 for receiving the first coupling mechanism 340A, as will be described in detail below. The first inner housing 332 further includes a pair of pressing block grooves 338 for receiving a pair of pressing blocks 360. The pair of pressing blocks 360 are operable to translate within the pressing block grooves 338 along the Y axis when the inner housing 330 is translated relative to the outer housing 322 along the Z axis. The first inner housing 332 also includes a guide member having a guide seat 361 for receiving a guide column 350 and a pair of guide arms 357 (see Figure 22M), which will be described in more detail below. The dimensions of the guide seat 361 along the Y axis are such that the guide column 350 and the pair of guide arms 357 can translate back and forth along the Y axis within the guide seat 361. Furthermore, as will be described later with respect to Figure 22M, a pair of connecting mechanism mounting portions 359 are also provided on the surface of the first inner housing 332 in order to pivotally connect the second connecting mechanism 340B to the first inner housing 332.

[0090]

[0119] Referring again to Figure 22J, the pair of charging pin notches 331 are formed inside the first inner housing 332. Furthermore, the pair of pressure blocks 360 are partially positioned by the pair of charging pin notches 331 within the space formed between the first inner housing 332 and the second inner housing 334, as well as within the pressure block groove 338. The second inner housing 334 further includes openings for various components to protrude, such as the coupling mechanisms 340A, 340B and the guide posts 350, which will be described in more detail below.

[0091]

[0120] The foldable bed charging assembly 320 further includes a mounting plate 336 which is coupled to the outer housing 322 by fasteners 325 so that the mounting plate 336 can move freely relative to the outer housing 322 in the Z-axis direction. The fasteners are fixed to the wing portion 348 of the mounting plate 336. In the illustrated embodiment, a pair of biasing springs 329 are positioned around the fasteners 325 and sandwiched between the mounting plate 336 and the inner surface 343 of the outer housing 322. The pair of biasing springs 329 bias the inner housing 330 away from the outer housing 322 and disengage the charging pins 324 housed inside the pin notches 331.

[0092]

[0121] The mounting plate 336 includes a raised central rib 337, which is positioned higher in the Z-axis direction than the wing portion 348. The raised central rib 337 includes a slot 339 in which a fastener 327 is positioned. The fastener 327 is secured by a guide strut 350 (for example, by screw connection). The guide strut 350 is loosely secured to the mounting plate 336 by the fastener 327 so that the guide strut 350 moves freely along the Y-axis due to the length of the slot 339. Thus, the fastener 327 moves within the slot 339 as the inner housing 330 is translated relative to the outer housing 322 along the Z-axis direction.

[0093]

[0122] Referring here to Figure 22M, the foldable bed charging assembly 320 is shown with the mounting plate 336 removed. Figure 22M shows the foldable bed charging assembly 320 with the charging pin 324 retracted and disengaged. A pair of guide arms 357 (only one is visible in Figure 22M) may be formed by a U-shaped member whose bottom is positioned inside the guide seat 361 of the first inner housing 332. The guide support 350 includes a pair of guide grooves 355, or grooves that receive the pair of guide arms 357. The pair of guide arms 357 translate freely along the Z axis inside the pair of guide grooves 355. As shown in Figure 22J, the pair of guide arms 357 are positioned through the opening 363 of the mounting plate 336.

[0094]

[0123] The guide column 350 further includes a pair of first coupling mechanism mounting parts 358A and a pair of second coupling mechanism mounting parts 358B. The second coupling mechanism 340B is coupled to the pair of second coupling mechanism mounting parts 358B and to a coupling mechanism mounting part 359 on the surface of the first inner housing 332. This allows the second coupling mechanism 340B to be pivotably coupled to both the guide column 350 and the first inner housing 332. The first coupling mechanism 340A is pivotably coupled to the guide column 350 by the pair of first coupling mechanism mounting parts 358A.

[0095]

[0124] A pair of pressure blocks 360 are arranged inside a pair of pressure block grooves 338. Each pressure block 360 has a spring groove 362 and a pair of wall fasteners 364. A pin spring 378 is positioned inside each spring groove 362 and between the pair of wall fasteners 364.

[0096]

[0125] An exemplary folding bed charging assembly further includes a pin engagement member 370 having a pair of pin engagement wings 372 extending from a pair of third coupling mechanism mounting portions 375. The first coupling mechanism 340A is pivotally coupled to the pin engagement member 370 at the pair of third coupling mechanism mounting portions 375. Thus, the first coupling mechanism 340A is pivotally coupled to both the pin engagement member 370 and the guide post 350. The pair of third coupling mechanism mounting portions 375 are loosely disposed within the coupling mechanism recess 333 such that portions of the pair of third coupling mechanism mounting portions 375 rest on a pair of shelf portions 377.

[0097]

[0126] A portion of each pin-engaging wing 372 extends over each pressure block 360. Each pin-engaging wing 372 includes a spring coupling member 374, such as a hook, that extends into a spring groove 362 of each pressure block 360. The spring coupling member 374 is coupled to a pin spring 378, for example, by a spring hook or spring loop. The other end of the spring is coupled to the rear of the pressure block 360 by a spring tab 379.

[0098]

[0127] Each pin-engaging wing 372 also includes a pair of side walls 376. The pin spring 378 pulls the pin-engaging wing 372 in the negative Y-axis direction so that the pair of side walls 376 of the pin-engaging wing 372 are pressed against a pair of wall fasteners 364 of the pressure block 360.

[0099]

[0128] Each charging pin 324 includes a hinge pin 381 and a pressure pin 382 (see Figure 22P). The hinge pin 381 is pivotably disposed inside the opening of the first inner housing 332, while the pressure pin 382 is pivotably disposed inside the opening of the pressure block 360.

[0100]

[0129] Figure 22N shows the same diagram of the foldable bed charging assembly 320 as in Figure 22M, but with the foldable bed charging assembly 320 in the engaged state and the charging pin 324 fully extended. The foldable bed charging assembly 320 transitions from the disengaged state shown in Figure 22M to the engaged state shown in Figure 22N by applying a force that biases the inner housing 330 (including the first inner housing 332) toward the outer housing 322 in the positive Z-axis direction. This force may be, for example, from the bottom of the inner housing 330 in contact with the surface of a fastener mounted in the cargo area of ​​the vehicle. As the first inner housing 332 moves in the positive Z-axis direction, the pair of guide arms 357 move upward in the positive Z-axis direction. Simultaneously, at the location of the pair of third connecting mechanism mounting portions 375 inside the connecting mechanism recess 333, the first connecting mechanism 340A rotates around the pair of first connecting mechanism mounting portions 358A, and also advances the pair of third connecting mechanism mounting portions 375 in the positive Y-axis direction on the pair of shelf portions 377 inside the connecting mechanism recess 333. Furthermore, the second connecting mechanism 340B rotates around the connecting mechanism mounting portion 359 on the first inner housing 332, pushing the pair of second connecting mechanism mounting portions 358B in the positive Y-axis direction. The rotations of both the first connecting mechanism 340A and the second connecting mechanism 340B allow the guide column 350, the pair of guide arms 357, the pin engagement member 370, and the pair of pressing blocks 360 to be operated to translate in the positive Y-axis direction. The internal slot 339 (Figure 22J) of the mounting plate 336 allows the fastener 327, the guide column 350, and the pair of guide arms 357 to translate along the Y axis.

[0101]

[0130] The movement of the pressing block 360 in the positive Y-axis direction pushes the pressing pin 382 of the pair of charging pins 324, causing the pair of charging pins 324 to rotate around the hinge pin 381 inside the first inner housing 332. In this way, the charging pins 324 are rotated and engaged. When the force is removed from the inner housing 330, the inner housing 330 is biased away from the outer housing 322 by a pair of biasing springs 329 (Figure 22J), causing the guide column 350 and the pair of guide arms 357 to translate in the negative Y-axis direction to the position shown in Figure 22M.

[0102]

[0131] Each charging pin 324 is independently movable relative to the other. Referring here to Figure 22O, the folding bed charging assembly 320 is shown engaged (i.e., the inner housing 330 is pushed into the recess of the outer housing 322) by pulling one of the charging pins 324 back into the charging pin notch 331. By rotating the charging pin 324 back in the negative Y-axis direction, the corresponding press block 360 is also pushed back in the negative Y-axis direction by the press pin 382. In this state, the pin engaging member 370 remains stationary in its position on the Y-axis. This causes the pin spring 378 to be tensed as the distance between the spring coupling member 374 and the spring tab 379 increases. When the charging pin 324 is released, the pin spring 378 returns to its compressed state, causing the pin to spring back into the engaged state. The ability of the charging pin 324 to move independently helps overcome misalignment, for example, when a folding bed is positioned inside a fastener in an emergency vehicle.

[0103]

[0132] Referring here to Figure 22P, a pair of charging pins 324 and a pair of conductor members 380 are shown. The pair of charging pins 324 and the pair of conductor members 380 are manufactured from conductive materials such as steel, aluminum, and copper, respectively, but are not limited to these. In the illustrated embodiment, each conductor member 380 comprises a pin terminal connector 388 and a wire terminal connector 384. The terminal connector 388 is disposed between the hinge pin 381 and the charging pin 324. In some embodiments, a conductive spring 386 may be disposed between the pin terminal connector 388 and the hinge pin 381 to ensure electrical contact between the pin terminal connector 388 and the charging pin 324. The wire terminal connector 384 is coupled to a terminal 389 of a conductive wire (not shown) which is electrically coupled to the battery of the folding bed by a fastener 385, for example. It should be understood that other means of electrically coupling the charging pins 324 to the battery of the folding bed are possible.

[0104]

[0133] It should be noted that the terms “substantially” and “about” may be used herein to express the degree of inherent uncertainty that may arise from quantitative comparisons, values, measurements, or other representations. These terms are also used herein to express the degree to which quantitative representations may deviate from the references given without altering the fundamental function of the subject matter in question.

[0105]

[0134] While specific embodiments are illustrated and described herein, it should be understood that various other changes and modifications can be made without departing from the spirit and scope of the claimed subject matter. Furthermore, while various aspects of the claimed subject matter are described herein, such aspects do not need to be used in combination. Therefore, the appended claims are intended to cover all such changes and modifications within the scope of the claimed subject matter.

Claims

1. A charging assembly for a patient support device, An upper body having a mounting portion that can be operated to be coupled to the fastening assembly of the patient support device, A actuator portion that is coupled to the upper body and can be operated to translate toward the upper body, When the actuator portion translates toward the upper body, the pair of charging pins are connected to the actuator portion such that the pair of charging pins translate toward the mounting portion of the upper body, A charging assembly equipped with the following features.

2. A charging assembly according to claim 1, wherein the actuator portion is configured to contact the surface of a fastener mounted in the cargo area of ​​a vehicle, and the contact between the actuator portion and the surface causes the actuator portion to be translated toward the upper body, and the pair of charging pins to be translated such that the pair of charging pins contact charging points on the fastener.

3. In the charging assembly according to claim 1 or 2, the upper body includes an outer housing that defines a recess, The actuator portion includes an operable inner housing that is arranged to translate within the recess and is operable, and is part of a charging assembly.

4. A charging assembly according to claim 3, wherein the mounting portion is a mounting bracket that is integrated with the outer housing.

5. A charging assembly according to claim 3 or 4, wherein each charging pin of the pair of charging pins has a bow shape and rotates toward each other as the inner housing translates toward the lower surface of the outer housing through the recess of the outer housing.

6. A charging assembly according to claim 5, wherein each charging pin of the pair of charging pins is operable independently of the other charging pin.

7. The charging assembly according to claim 5 further comprises a pair of pressing blocks, Each charging pin includes a hinge pin coupled to the inner housing and a pressing pin coupled to each individual pressing block of the pair of pressing blocks. A charging assembly in which the pair of pressing blocks are operable to translate such that when the inner housing is translated toward the outer housing, the pair of pressing blocks rotate the pair of charging pins around the hinge pin.

8. A charging assembly according to claim 7, wherein the pair of pressing blocks are translated by at least one coupling mechanism.

9. In the charging assembly according to claim 7 or 8, A guide support located inside the guide seat portion of the inner housing, the guide support including at least one guide groove, A connecting mechanism connected to the guide support at the first end, A pin engagement member comprising a pair of pin engagement wings at least partially positioned on the pair of pressing blocks, wherein the second end of the connecting mechanism is coupled to the pin engagement member, At least one guide coupled to the inner housing, wherein the at least one guide is disposed inside the at least one guide groove, Furthermore, The inner housing includes a coupling mechanism recess and a pair of pressing block grooves, The pair of pressing blocks are arranged inside the pair of pressing block grooves, A charging assembly wherein, when the inner housing is translated toward the outer housing, the at least one guide is translated toward the outer housing within the at least one guide groove, the coupling mechanism rotates on the guide column at its first end such that the second end is disposed within the coupling mechanism recess, and the pair of pressing blocks are translated within the pair of pressing block grooves to rotate the pair of charging pins.

10. The charging assembly according to claim 9 further comprises a pair of springs, Each pressing block includes a spring groove, The pair of springs are disposed inside the spring grooves of the pair of pressing blocks, Each pin engaging wing portion includes a spring coupling member coupled to the end of each spring of the pair of springs, A charging assembly that, when the inner housing is translated toward the outer housing by the pair of springs, allows the individual charging pins of the pair of charging pins to be retracted.

11. A patient support device, A fastener assembly that is operable to connect to fasteners installed in the cargo area of ​​a vehicle, Charging assembly and The charging assembly is equipped with, An upper body including a mounting portion connected to the fastener assembly, A actuator portion that is coupled to the upper body and can be operated to translate toward the upper body, When the actuator portion translates toward the upper body, the pair of charging pins are connected to the actuator portion such that the pair of charging pins translate toward the mounting portion of the upper body, Patient support devices, including those mentioned above.

12. A patient support device according to claim 11, wherein the actuator portion is configured to contact the surface of the fastener mounted in the cargo area of ​​the vehicle, and the contact between the actuator portion and the surface causes the actuator portion to be translated toward the upper body, and the pair of charging pins are translated so that the pair of charging pins contact the charging points on the fastener.

13. In the patient support device according to claim 11 or 12, The upper body includes an outer housing that defines a recess, A patient support device comprising an inner housing that is arranged to translate within the recess and is operable.

14. A patient support device according to claim 13, wherein the mounting portion is a mounting bracket integrated with the outer housing.

15. A patient support device according to claim 13, wherein each charging pin of the pair of charging pins has an arch shape and rotates toward each other when the inner housing translates toward the lower surface of the outer housing through the inside of the recess of the outer housing.

16. A patient support device according to claim 15, wherein each charging pin of the pair of charging pins is operable independently of the other charging pin.

17. In the patient support device according to claim 15 or 16, The charging assembly further comprises a pair of pressing blocks, Each charging pin includes a hinge pin coupled to the inner housing and a pressing pin coupled to each individual pressing block of the pair of pressing blocks. A patient support device in which the pair of pressing blocks can be operated to translate such that when the inner housing is translated toward the outer housing, the pair of pressing blocks rotate the pair of charging pins around the hinge pin.

18. A patient support device according to claim 17, wherein the pair of pressing blocks are translated by at least one coupling mechanism.

19. In the patient support device according to claim 17 or 18, The charging assembly is A guide support located inside the guide seat portion of the inner housing, the guide support including at least one guide groove, A connecting mechanism connected to the guide support at the first end, A pin engagement member comprising a pair of pin engagement wings at least partially positioned on the pair of pressing blocks, wherein the second end of the connecting mechanism is coupled to the pin engagement member, At least one guide coupled to the inner housing, wherein the at least one guide is disposed inside the at least one guide groove, Furthermore, The inner housing includes a coupling mechanism recess and a pair of pressing block grooves, The pair of pressing blocks are arranged inside the pair of pressing block grooves, A patient support device wherein, when the inner housing is translated toward the outer housing, the at least one guide is translated toward the outer housing within the at least one guide groove, the coupling mechanism rotates on the guide column at its first end such that the second end is disposed within the coupling mechanism recess, and the pair of pressing blocks are translated within the pair of pressing block grooves, causing the pair of charging pins to rotate.

20. In the patient support device according to claim 19, The charging assembly further comprises a pair of springs, Each pressing block includes a spring groove, The pair of springs are disposed inside the spring grooves of the pair of pressing blocks, Each pin engaging wing portion includes a spring coupling member coupled to the end of each spring of the pair of springs, A patient support device wherein the inner housing is translated toward the outer housing by the pair of springs, thereby enabling the individual charging pins of the pair of charging pins to be retracted.

21. A fastener support assembly for securing an emergency folding bed to a fastener of an emergency vehicle, wherein the fastener support assembly comprises: The back panel and Front panel and The support column body includes a support column and a pair of arms, A first locking tab and a second locking tab, each of the first locking tabs having a hook at its first end, the first locking tab and the second locking tab, The actuator body and Equipped with, The rear plate is fixed to the front plate such that the pair of arms, the first locking tab, the second locking tab, and the actuator body are disposed between the rear plate and the front plate. The first locking tab and the second locking tab are pivotably coupled to the rear plate such that they are biased inward toward each other. A fastener support column assembly, wherein moving the actuator body toward the support column body causes the first locking tab and the second locking tab to rotate outward, separating them from each other.

22. A fastener support assembly according to claim 21, further comprising at least one pair of actuator connectors, each actuator connector having a first through hole at a first end and a second through hole at a second end, the actuator body further comprising a main portion having at least one connecting seat, the main portion having a plurality of longitudinally aligned through holes, and the first ends of the at least one pair of actuator connectors being disposed inside the at least one connecting seat.

23. A fastener support assembly according to claim 22, further comprising a plurality of longitudinally aligned through holes and a pivot pin disposed inside the first through hole of at least one pair of actuator connectors.

24. In the fastener support assembly according to claim 23, the first locking tab and the second locking tab are, An inner surface including at least one groove, wherein the second end of each of the at least one pair of actuator connectors is disposed inside the at least one groove, A hole is provided that passes through the first end and through the at least one groove, A fastener post assembly, including a fastener support.

25. A fastener support assembly according to claim 24, further comprising a pair of first alignment pins disposed inside the holes of the first locking tab and the holes of the second locking tab through the second through holes of the at least one pair of actuator connectors.

26. A fastener support assembly according to any one of claims 21 to 25, further comprising a first biasing member and a second biasing member, The actuator body further includes a first biasing member portion having a first biasing member slot, and a second biasing member portion having a second biasing member slot, The first biasing member is disposed inside the first biasing member slot, and the second biasing member is disposed inside the second biasing member slot. A fastener support assembly in which the first biasing member and the second biasing member are biased inward toward each other by the first biasing member and the second biasing member.

27. A fastener support assembly according to claim 26, wherein the actuator body is U-shaped.

28. A fastener support assembly for securing an emergency folding bed to a fastener of an emergency vehicle, wherein the fastener support assembly comprises: An actuator body comprising a main portion having at least one connecting seat portion, wherein the main portion comprises a plurality of longitudinally aligned through holes, At least one pair of actuator connectors, each actuator connector having a first through hole at a first end and a second through hole at a second end, the first ends of the at least one pair of actuator connectors being disposed inside the at least one coupling seat, The plurality of longitudinally aligned through holes, and the pivot pin disposed inside the first through hole of the at least one pair of actuator connecting parts, A first locking tab and a second locking tab, wherein each of the first locking tab and the second locking tab is A hook at the first end and an opening at the second end, An inner surface including at least one groove, wherein the second end of each of the at least one pair of actuator connectors is disposed inside the at least one groove, and A hole provided through the first end and through at least one groove, The first locking tab and the second locking tab, A pair of first alignment pins are disposed inside the holes of the first locking tab and the second locking tab, through the second through-holes of the at least one pair of actuator connectors, A rear plate including a pair of holes, A support column body including a support column and a pair of arms, wherein the pair of arms define the recess such that the second end of the first locking tab and the second locking tab are disposed inside the recess, A pair of second alignment pins are disposed between the opening of the first locking tab and the opening of the second locking tab and the pair of holes in the rear plate, The pair of arms of the support column body, and the front plate fixed to the rear plate such that the first locking tab and the second locking tab are disposed between the front plate and the rear plate, A fastener support assembly comprising, wherein the first locking tab and the second locking tab are biased inward toward each other and are operable to rotate away from each other as the actuator body is translated.

29. A fastener support assembly according to claim 28, The at least one connecting seat portion includes a first connecting seat portion and a second connecting seat portion, The actuator body includes a partition separating the second connecting seat from the first connecting seat, The at least one pair of actuator connectors includes a first pair of actuator connectors and a second pair of actuator connectors. The first locking tab and the second locking tab, the at least one groove, include the first groove and the second groove, The first end of the first pair of actuator connectors is disposed inside the first connector seat, and the second end of the second pair of actuator connectors is disposed inside the second connector seat. A fastener support assembly wherein the second ends of the first pair of actuator connectors are disposed inside the first groove, and the second ends of the second pair of actuator connectors are disposed inside the second groove.

30. The fastener support assembly according to claim 28 or 29 further comprises a first biasing member and a second biasing member, The actuator body further includes a first biasing member portion having a first biasing member slot, and a second biasing member portion having a second biasing member slot, The first biasing member is disposed inside the first biasing member slot, and the second biasing member is disposed inside the second biasing member slot. A fastener support assembly in which the first biasing member and the second biasing member are biased inward toward each other by the first biasing member and the second biasing member.

31. In the fastening support column assembly according to claim 30, The rear plate includes a rear biasing member slot, and the rear biasing member slot is aligned with the second biasing member slot of the actuator body such that the second biasing member is disposed inside both the rear biasing member slot of the rear plate and the second biasing member slot of the actuator body. The fastener support assembly comprises a front plate including a front biasing member slot, the front biasing member slot being aligned with the first biasing member slot of the actuator body such that the first biasing member is disposed inside both the front biasing member slot of the front plate and the first biasing member slot of the actuator body.

32. A fastener support assembly according to any one of claims 28 to 31, wherein the rear plate further includes an offset fitting surface, and the surfaces of the first locking tab and the second locking tab abut the offset fitting surface.

33. A fastener support assembly according to any one of claims 28 to 32, wherein the actuator body includes an actuator surface that includes a tapered surface and a flat surface.

34. A fastener support assembly for securing an emergency folding bed to a fastener of an emergency vehicle, wherein the fastener support assembly comprises: The back panel and A front panel including the front and a cover extending from the front, The support column body includes a support column and a pair of arms, A first locking tab and a second locking tab, each of the first locking tabs having a hook at its first end, the first locking tab and the second locking tab, An actuator body including an upper portion and a pair of pin slots inside the upper portion, The rear plate is fixed to the front plate such that the pair of arms, the first locking tab, the second locking tab, and the actuator body are disposed between the rear plate and the front plate. The first locking tab and the second locking tab are pivotably coupled to the rear plate such that they are biased inward toward each other, and the actuator body A locking button slidably disposed inside the cover, the locking button including its front end and cam surface, A sliding part disposed inside the front plate, the sliding part including a cam-following member and a pair of locking pins, A return spring is disposed between the surface of the sliding part and the inner surface of the front plate, A pair of pin biasing springs that can be operated to bias the pair of locking pins toward the upper part of the actuator body, Equipped with, By moving the locking button toward the cover, the contact between the cam surface and the cam-following member pushes the sliding portion toward the upper portion of the actuator body. A fastener support assembly, wherein the actuator body is moved toward the support body, thereby aligning the pair of pin slots on the upper part of the actuator body with the pair of locking pins, so that the ends of the pair of locking pins are positioned inside the pair of pin slots, and the first locking tab and the second locking tab are rotated outward, separating them from each other, so that the fastener support assembly is locked.

35. A fastener support assembly according to claim 34, wherein the positions of the ends of the pair of locking pins inside the pair of pin slots maintain the fastener support assembly in the locked state and prevent the actuator body from moving away from the support body until the locking button moves away from the cover, and the cam following member moves along the cam surface such that the return spring moves the sliding portion away from the actuator body.

36. A fastener support assembly according to claim 34 or 35, wherein when the locking button is engaged and the actuator body is disengaged, the pair of pin biasing springs are compressed such that the pair of locking pins are pressed against the surface of the upper portion of the actuator body.

37. A fastener post assembly according to any one of claims 34 to 36, further comprising at least one pair of actuator connectors, each actuator connector having a first through hole at a first end and a second through hole at a second end, the actuator body further comprising a main portion having at least one connecting seat, the main portion comprising a plurality of longitudinally aligned through holes, and the first ends of the at least one pair of actuator connectors being disposed inside the at least one connecting seat.

38. A fastener support assembly according to claim 37, further comprising a plurality of longitudinally aligned through holes and a pivot pin disposed inside the first through hole of at least one pair of actuator connectors.

39. In the fastener support assembly according to claim 38, the first locking tab and the second locking tab are, An inner surface including at least one groove, wherein the second end of each of the at least one pair of actuator connectors is disposed inside the at least one groove, and the inner surface, A hole is provided that passes through the first end and through at least one groove, A fastener post assembly, including a fastener support.

40. A fastener support assembly according to claim 39, further comprising a pair of first alignment pins disposed inside the holes of the first locking tab and the holes of the second locking tab through the second through holes of the at least one pair of actuator connectors.

41. Directional control type wheel locking assembly, Pedals and, A connecting rod attached to the pedal, An operating plunger including an upper opening, An operating pin disposed through the upper opening of the operating plunger, wherein the connecting rod is coupled to the end of the operating pin, An operating plate comprising a recess and an opening inside the recess, wherein the operating plunger is positioned inside the opening, the operating plate and A wheel locking plate including a locking opening, wherein the wheel locking plate is operable to be coupled to a wheel, A directional wheel locking assembly comprising:

42. In the directional control type wheel locking assembly according to claim 41, By operating the pedal into the locking position, the connecting rod pushes the connecting rod so as to rotate the operating pin, causing the operating pin to fall into the recess, and the operating plunger to descend into the locking opening of the wheel locking plate, thereby preventing the wheel from rotating. Direction-controlled wheel locking assembly, wherein by operating the pedal into the unlocked position, the connecting rod is pulled so as to rotate the operating pin, the operating pin rises from the recess, and the operating plunger rises from the locking opening of the wheel locking plate, enabling the wheel to rotate.

43. Directional control wheel locking assembly according to claim 41 or 42, wherein the wheel locking plate includes a tapered wall that defines part of the recess.

44. Directional control wheel locking assembly according to claim 43, wherein the actuation pin slides along the tapered wall when moving between the locking position and the unlocking position.

45. Directional control wheel locking assembly according to any one of claims 41 to 44, wherein the actuating plunger includes an end having a shape corresponding to the shape of the locking opening.

46. Directional control wheel locking assembly according to any one of claims 41 to 45, wherein the actuation pin is perpendicular to the actuation plunger.

47. Directional control wheel locking assembly according to any one of claims 41 to 46, further comprising a second pedal, a second connecting rod, a second actuation plunger, a second actuation pin, a second actuation plate, a second wheel locking plate, and a crossbar, wherein the crossbar is coupled to the first pedal and the second pedal such that the actuation of one of the first pedal and the second pedal actsuation to the other of the first pedal and the second pedal.

48. Directional control wheel locking assembly according to any one of claims 41 to 47, wherein the connecting rod includes a bent portion that is bent around the portion of the operating plate having the recess.

49. Directional control wheel locking assembly according to any one of claims 41 to 48, wherein the connecting rod is operable such that the pedal is offset by a distance of 10 centimeters or more from the wheel.

50. A wheeled device, Frame and, A base frame attached to the aforementioned frame, A first pair of wheels coupled to the frame and a second pair of wheels coupled to the frame, Directional control wheel locking assembly, The directional control wheel locking assembly is equipped with, Pedals and, A connecting rod is attached to the pedal such that the pedal is offset from the wheel, An operating plunger having an upper opening, An operating pin disposed through the upper opening of the operating plunger, wherein the connecting rod is coupled to the end of the operating pin, An operating plate comprising a recess and an opening inside the recess, wherein the operating plunger is positioned inside the opening, the operating plate and A wheel locking plate including a locking opening, wherein the wheel locking plate is operable to be coupled to a wheel, A wheeled device, including one.

51. In the wheeled device according to claim 50, by operating the pedal into the locking position, the connecting rod pushes the connecting rod so as to rotate the operating pin, the operating pin falls into the recess and the operating plunger descends into the locking opening of the wheel locking plate, thereby preventing the wheel from rotating. A wheeled device wherein, by operating the pedal into the unlocked position, the connecting rod is pulled so as to rotate the operating pin, the operating pin rises from the recess and raises the operating plunger from the locking opening of the wheel locking plate, thereby enabling the wheel to pivot.

52. A wheeled device according to claim 50 or 51, wherein the wheeled device is an emergency folding bed.

53. A wheeled device according to any one of claims 50 to 52, wherein the wheel locking plate includes a tapered wall that defines part of the recess.

54. A wheeled device according to claim 53, wherein the operating pin slides along the tapered wall when moving between the locked position and the unlocked position.

55. A wheeled device according to any one of claims 50 to 54, wherein the actuating plunger includes an end having a shape corresponding to the shape of the locking opening.

56. A wheeled device according to any one of claims 50 to 55, wherein the operating pin is perpendicular to the operating plunger.

57. A wheeled device according to any one of claims 50 to 56, wherein the directional wheel locking assembly further includes a second pedal, a second connecting rod, a second actuating plunger, a second actuating pin, a second actuating plate, a second wheel locking plate, and a crossbar, the crossbar being coupled to the first pedal and the second pedal such that the actuation of one of the first pedal and the second pedal actsuation to the other of the first pedal and the second pedal.

58. A wheeled device according to any one of claims 50 to 57, wherein the connecting rod includes a bent portion that is bent around the portion of the operating plate having the recess.

59. A wheeled device according to any one of claims 50 to 58, wherein the connecting rod is operable such that the pedal is offset by a distance of 10 centimeters or more from the wheel.

60. A handle assembly for a folding bed, A handle body configured to be attached to a folding bed, A handle actuator slidably coupled to the handle body, A first connecting arm and a second connecting arm pivotably mounted on the surface of the handle body at a pivot point, wherein the second connecting arm is slidably coupled to the handle actuator, and the first connecting arm and the second connecting arm, An actuator assembly, wherein the actuator assembly has a first end connected to the first connecting arm, A locking coupling mechanism assembly including a locking pin, wherein the second end of the actuator assembly is coupled to the locking coupling mechanism assembly, A handle assembly comprising, wherein when the handle actuator is pulled, the first and second connecting arms rotate about the pivot point to pull the actuator assembly, moving the locking pin from an extended state to a retracted state, thereby enabling a change in the length of the folding bed.

61. A handle assembly according to claim 60, wherein the handle actuator includes a slot, and rotates the first and second connecting arms by positioning a portion of the second connecting arm inside the slot such that the portion of the second connecting arm translates inside the slot when the handle actuator is pulled and released.

62. A handle assembly according to claim 60 or 61, wherein the actuator assembly includes a cable, the first end of which is coupled to the first connecting arm.

63. A handle assembly according to any one of claims 60 to 62, wherein the handle body further includes a mounting bracket having an opening, and the actuator assembly is disposed through the opening of the mounting bracket.

64. A handle assembly according to claim 63, wherein the actuator assembly includes a cable inside the jacket.

65. In a handle assembly according to any one of claims 60 to 64, The actuator assembly includes a cable, The locking coupling mechanism assembly includes a housing configured to be coupled to the end of the first rail of the folding bed, the housing including a first half and a second half defining an internal recess, The second half includes an opening, The locking pin is disposed inside the opening of the second half, The locking coupling mechanism assembly includes a sliding body disposed inside the internal recess and coupled to the end of the cable, A handle assembly, wherein the locking pin is movably coupled to the slider body such that when the handle actuator is pulled, the locking pin translates through the opening of the second half from the extended state to the retracted state, and when the handle actuator is released, the locking pin translates through the opening of the second half from the retracted state to the extended state.

66. A handle assembly according to claim 65, wherein the sliding body includes a coupling portion, and the end of the cable includes a threaded portion that is coupled to the coupling portion by threads.

67. A handle assembly according to claim 65 or 66, wherein the sliding body includes a longitudinal slot, and the locking pin is positioned inside the longitudinal slot.

68. In the handle assembly according to claim 67, The second half comprises a pin retainer body located inside the inner recess, which includes at least one slot and is configured to receive the locking pin, The pin retainer body is positioned inside the longitudinal slot of the sliding body such that the sliding body can be operated to translate relative to the pin retainer body. The handle assembly includes a cross pin positioned through the locking pin, The cross pin is positioned inside the at least one slot, The sliding body further includes a cam slot having a cam surface that defines a locking pin extension region and a locking pin storage region. The cross pin is positioned inside the cam slot and contacts the cam surface. When the handle actuator is pulled, the sliding body translates through the interior of the inner recess toward the handle actuator, and the cross pin moves on the cam surface from the locking pin extension region to the locking pin storage region, thereby drawing the locking pin into the opening of the second half of the housing. A handle assembly wherein, when the handle actuator is released, the slider body translates within the inner recess away from the handle actuator, and the cross pin moves on the cam surface from the locking pin storage area to the locking pin extension area, thereby extending the locking pin from the opening in the second half of the housing.

69. In the handle assembly according to claim 68, The handle assembly further includes a guide positioned inside the locking pin so that the locking pin can be operated to translate on the guide, The pin retainer body further includes a first covering portion and a second covering portion that partially surround the guide, The first half of the housing includes a first cover recess, a second cover recess, and a guide opening. The first covering portion is positioned inside the first covering recess, and the second covering portion is positioned inside the second covering recess. The guide is positioned inside the guide opening. The handle assembly further comprises a biasing spring disposed on the guide for biasing the locking pin in the extended state.

70. It is a foldable bed, A support frame comprising a pair of side rails connected together, each side rail including a first rail and a second rail, a portion of the first rail slidably disposed inside the second rail, and the second rail including two or more locking openings, the support frame and A handle assembly for adjusting the length of the aforementioned folding bed, The handle assembly is equipped with, A handle body configured to be attached to the aforementioned folding bed, A handle actuator slidably coupled to the handle body, A pair of connecting parts, each of which includes a first connecting arm and a second connecting arm pivotably mounted on the surface of the handle body at a pivot point, the second connecting arm being slidably coupled to the handle actuator, A pair of actuator assemblies, wherein the first end of each actuator assembly is coupled to the first connecting arm of the individual connecting parts of the pair of connecting parts, A pair of locking coupling mechanism assemblies, each locking coupling mechanism assembly is positioned on the first rail of the individual side rails of the pair of side rails, and each locking assembly includes a locking pin, It further includes, The second end of each actuator assembly is coupled to each locking mechanism assembly of the pair of locking mechanism assemblies, A folding bed, wherein when the handle actuator is pulled, the first and second connecting arms of the pair of connecting parts rotate about the pivot point to pull the actuator assembly, moving the locking pins of the pair of locking connecting mechanism assemblies from the extended state to the retracted state, thereby releasing the locking pins from the individual locking openings of the second rail of the pair of side rails, and thereby allowing the length of the folding bed to be changed.

71. A folding bed according to claim 70, wherein the handle actuator includes a pair of slots, and the pair of connecting parts are rotated by positioning a portion of the second connecting arm of the pair of connecting parts inside the pair of slots such that the portion of the second connecting arm of the pair of connecting parts translates inside the pair of slots when the handle actuator is pulled and released.

72. A folding bed according to claim 70 or 71, wherein the first end of each actuator assembly is coupled to each first connecting arm.

73. A folding bed according to any one of claims 70 to 72, wherein the handle body further includes a pair of mounting brackets having openings, and the pair of actuator assemblies are disposed through the openings of the pair of mounting brackets.

74. A folding bed according to claim 73, further comprising an accessory mounting portion attached to at least one of the pair of side rails, wherein the accessory mounting portion includes a dovetail configuration that is operable to receive an accessory having a corresponding dovetail configuration for mounting the accessory to the folding bed.

75. In the folding bed according to any one of claims 70 to 74, Each actuator assembly includes a cable. Each locking coupling mechanism assembly includes a housing configured to be coupled to the end of the first rail of the folding bed, the housing including a first half and a second half defining an internal recess, The second half includes an opening, The locking pin is disposed inside the opening of the second half, Each locking coupling mechanism assembly includes a sliding body disposed inside the internal recess and coupled to the end of the cable, A folding bed, wherein the locking pin is movably coupled to the sliding body so that when the handle actuator is pulled, the locking pin translates from the extended state to the retracted state within the openings of the second half so that it is pulled out from the individual locking openings, and when the handle actuator is released, the locking pin translates from the retracted state to the extended state within the openings of the second half so that it is received by the individual locking openings.

76. A folding bed according to claim 75, wherein the sliding body includes a coupling portion, and the end of the cable includes a threaded portion connected to the coupling portion by a screw thread.

77. A folding bed according to claim 75 or 76, wherein the sliding body includes a longitudinal slot, and the locking pin is positioned inside the longitudinal slot.

78. In the folding bed described in claim 77, The second half includes a pin retainer body inside the inner recess, the pin retainer body includes at least one slot and is configured to receive the locking pin, The pin retainer body is positioned inside the longitudinal slot of the sliding body such that the sliding body can be operated to translate relative to the pin retainer body. The handle assembly further includes a cross pin positioned through the locking pin, The cross pin is positioned inside the at least one slot, The sliding body further includes a cam slot having a cam surface that defines a locking pin extension region and a locking pin storage region. The cross pin is positioned inside the cam slot and contacts the cam surface. When the handle actuator is pulled, the sliding body translates through the interior of the inner recess toward the handle actuator, and the cross pin moves from the locking pin extension region to the locking pin storage region on the cam surface, thereby drawing the locking pin into the opening of the second half of the housing. A folding bed, wherein when the handle actuator is released, the sliding body translates within the inner recess away from the handle actuator, and the cross pin moves on the cam surface from the locking pin storage area to the locking pin extension area, thereby extending the locking pin from the opening in the second half of the housing.

79. In the folding bed of claim 78, Each locking coupling mechanism assembly further includes a guide positioned inside the locking pin so that the locking pin can be operated to translate along the guide, The pin retainer body further includes a first covering portion and a second covering portion that partially surround the guide, The first half of the housing includes a first cover recess, a second cover recess, and a guide opening. The first covering portion is positioned inside the first covering recess, and the second covering portion is positioned inside the second covering recess. The guide is positioned inside the guide opening. A folding bed, wherein the handle assembly further includes a biasing spring disposed on the guide for biasing the locking pin in the extended state.

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