Wheeled platform and wheeled platform locking system
A wheeled platform includes: an interlocked displacement member displaceable between a first locking position corresponding to a locking state of a locking device and a first non-locking position corresponding a non-locking state; an operation member displaceable between a second locking position corresponding to the locking state and a second non-locking position corresponding to the non-locking state, the operation member transmitting an operational force to the interlocked displacement member to displace the interlocked displacement member to the first non-locking position; and a spring that applies an elastic force to the operation member.
1 . A wheeled platform engageable with a striker secured to a wall-shaped portion, the wheeled platform comprising:
a locking device engageable with the striker in a manner such that the locking device holds the striker inside thereof, the locking device being switchable between a locking state where the locking device is engaged with the striker and a non-locking state where the locking state is released;
at least one interlocked displacement member configured to be displaced in conjunction with a state of the locking device, the interlocked displacement member being displaceable between a first locking position corresponding to the locking state and a first non-locking position corresponding to the non-locking state;
an operation member displaceable between a second locking position corresponding to the locking state and a second non-locking position corresponding to the non-locking state, the operation member being configured such that, in a state where the operation member at the second locking position receives an operational force and is displaced to the second non-locking position, the operation member transmits the operational force to the interlocked displacement member to displace the interlocked displacement member to the first non-locking position; and
a spring configured to apply an elastic force to the operation member, the spring being configured such that an amount of elastic deformation thereof increases as the operation member is displaced from the second locking position to the second non-locking position.
2 . The wheeled platform according to claim 1 ,
wherein the interlocked displacement member is displaceably coupled to the operation member,
wherein the interlocked displacement member and the operation member each comprise a contact portion, the contact portion of the interlocked displacement member and the contact portion of the operation member being configured to come into contact with each other to transmit the operational force in a state where the operation member receives the operational force and is displaced from the second locking position to the second non-locking position, and
wherein an operation cable configured to transmit the operational force to the locking device is coupled to the interlocked displacement member.
3 . The wheeled platform according to claim 2 , further comprising a base for an article to be placed thereon,
wherein the interlocked displacement member, the operation member, and the spring are arranged on a bottom surface side of the base, and
wherein the interlocked displacement member comprises an indicator that becomes visible to a user in a state where the interlocked displacement member is at the first non-locking position.
4 . The wheeled platform according to claim 2 , wherein the at least one interlocked displacement member is two or more interlocked displacement members, and wherein the two or more interlocked displacement members are coupled to the operation member.
5 . A wheeled platform locking system comprising:
a striker securable to a wall-shaped portion; and
a wheeled platform engageable with the striker, the wheeled platform comprising:
a locking device engageable with the striker in a manner such that the locking device holds the striker inside thereof, the locking device being switchable between a locking state where the locking device is engageable with the striker and a non-locking state where the locking state is released;
an interlocked displacement member configured to be displaced in conjunction with a state of the locking device, the interlocked displacement member being displaceable between a first locking position corresponding to the locking state and a first non-locking position corresponding to the non-locking state;
an operation member displaceable between a second locking position corresponding to the locking state and a second non-locking position corresponding to the non-locking state, the operation member being configured such that, in a state where the operation member at the second locking position receives an operational force and is displaced to the second non-locking position, the operation member transmits the operational force to the interlocked displacement member to displace the interlocked displacement member to the first non-locking position; and
a spring configured to apply an elastic force to the operation member, the spring being configured such that an amount of elastic deformation thereof increases as the operation member is displaced from the second locking position to the second non-locking position.