1. In a bell unit including a bell mounting member which is mounted on a handle of a bicycle, a bell mounted on the bell mounting member and a striker mechanism mounted on the bell mounting member to clang the bell;
a striker mechanism for a bell unit comprising a support member projecting radially outward of the bell, a striker pivotally mounted on the support member so as to be rockable in a direction toward and away from the outer peripheral surface of the bell, and a leaf spring member for maintaining the striker at an intermediate position as viewed in the rocking direction which is by a given distance spaced from the bell.
2. A striker mechanism for a bell unit according to claim 1 in which the striker is formed at its one end with an impactor which impacts the bell and an operator for operating the striker for a rocking motion and formed at the other end with a spring abutment, the striker being pivotally mounted on the support member at an intermediate location located between the opposite ends so as to be rockable, the leaf spring member resiliently abutting against the spring abutment to maintain the striker at an intermediate position.
3. A striker mechanism for a bell unit according to claim 2 in which the spring abutment is formed to be planar, the leaf spring member resiliently abutting against the planar spring abutment to maintain the striker at the intermediate position.
4. A striker mechanism for a bell unit according to claim 2 in which the spring abutment is formed with a pair of projections which are spaced apart radially of the bell, the leaf spring member resiliently abutting against the both projections to maintain the striker at the intermediate position.
5. A striker mechanism for a bell unit according to claim 1 in which the support member is formed with a stop which prevents the striker being rocked beyond a permissible stroke in a direction away from the bell.
6. A striker mechanism for s bell unit according to claim 5 in which the stop prevents the striker from being rocked beyond the permissible stroke in a direction away from the bell by abutting against the leaf spring member which undergoes an elastic deformation as the striker is rocked beyond a permissible stroke in a direction away from the bell.
7. A striker mechanism for a bell unit according to claim 1 in which the support member is rotatably mounted on the bell mounting member, the rotation permitting the striker to be rotated around the bell.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for changing the radio access point associated with a dual mode Wi-Fi-DECT radio terminal, within a Wi-Fi-DECT wireless telecommunications network comprising dual-mode Wi-Fi-DECT radio terminals and dual-mode Wi-Fi-DECT radio access points connected to a local area network; comprising the following in order to change the dual-mode radio access point associated with a dual mode Wi-Fi-DECT radio terminal, when a first Wi-Fi mode link and a first DECT mode link have been established between that dual mode Wi-Fi-DECT radio terminal and a first dual-mode Wi-Fi-DECT radio access point:
a second dual-mode Wi-Fi-DECT access point applying a known method for deciding on and executing a change of the radio access point associated with that dual mode Wi-Fi-DECT radio terminal for a first DECT mode link, in order to switch the DECT part of that first dual-mode Wi-Fi-DECT access point to the DECT part of said second dual-mode Wi-Fi-DECT access point;
and said second dual-mode Wi-Fi-DECT access point transferring the first Wi-Fi mode link from the Wi-Fi part of that first dual-mode Wi-Fi-DECT access point to the Wi-Fi part of that second dual-mode Wi-Fi-DECT access point, whenever it decides to change the radio access point associated with that dual mode Wi-Fi-DECT radio terminal for the first DECT mode link, from that first dual-mode Wi-Fi-DECT access point to that second dual-mode Wi-Fi-DECT access point.
2. A method according to claim 1, wherein, in order to transfer the first Wi-Fi mode link from that first dual-mode Wi-Fi-DECT access point to that second dual-mode Wi-Fi-DECT access point, it comprises:
preserving two links, established in a fixed-line network, connected to the first dual-mode Wi-Fi-DECT access point and respectively coupled to the DECT mode link and to the Wi-Fi mode link;
and relaying these two links by respectively establishing two new links between the first dual-mode Wi-Fi-DECT access point and the second dual-mode Wi-Fi-DECT access point in the fixed-line network.
3. A method according to claim 1, further consisting of replacing a Wi-Fi data transmission link with a DECT data transmission link whenever that Wi-Fi link is interrupted, until a Wi-Fi data transmission link can be established again.
4. A dual-mode Wi-Fi-DECT access point, for a Wi-Fi-DECT wireless telecommunication network, comprising dual mode Wi-Fi-DECT radio terminals and dual-mode Wi-Fi-DECT radio access points, wherein it comprises:\u2014a DECT part and a Wi-Fi part for simultaneously establishing a first DECT mode link and a first Wi-Fi mode link with a dual mode Wi-Fi-DECT radio mobile terminal;\u2014a control module to apply a known method for changing the radio access point associated with a dual mode Wi-Fi-DECT radio terminal, for a first DECT mode link, to switch from the DECT part of said dual-mode Wi-Fi-DECT access point to the DECT part of a second dual-mode Wi-Fi-DECT access point,
and a control module to transfer the first Wi-Fi mode link from the Wi-Fi part of said dual-mode Wi-Fi-DECT access point to the Wi-Fi part of said second dual-mode Wi-Fi-DECT access point, whenever it is decided to transfer the first DECT mode link from said dual-mode Wi-Fi-DECT access point to that second dual-mode Wi-Fi-DECT access point.
5. A dual-mode Wi-Fi-DECT access point, according to claim 4, wherein the control module for transferring the first Wi-Fi mode link from that first dual-mode Wi-Fi-DECT access point to a second dual-mode Wi-Fi-DECT access point, comprises a training module for:
preserving two links, established in a fixed-line network, connected to the first dual-mode Wi-Fi-DECT access point and respectively coupled to the DECT mode link and to the Wi-Fi mode link;
and relaying these two links by respectively establishing two new links between the first dual-mode Wi-Fi-DECT access point and the second dual-mode Wi-Fi-DECT access point in the fixed-line network.
6. A dual-mode Wi-Fi-DECT access point, according to claim 4, further comprising a control module for replacing a Wi-Fi data transmission link with a DECT data transmission link whenever that Wi-Fi link is interrupted, until a Wi-Fi data transmission link can be established again.