JPH019997Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ring support structure in a bell striking device such as an alarm clock.

Generally, in a bell striking device, it is ideal for the phosphorus to exist in the air in order to make maximum use of the vibrational energy when the phosphorus is struck. However, in reality, a support mechanism for phosphorus that can support a fairly heavy phosphorus is required, so conventionally the support mechanism is formed using a member that has sufficient strength to support the phosphorus and is as elastic as possible. Thus, the vibration energy loss is minimized. However, if a highly elastic member is used in consideration of loss of vibration energy, the mechanical strength will be weakened, resulting in damage due to strong impacts such as falling, or the supported phosphorus may fall off.

The present invention eliminates the above drawbacks by minimizing the loss of vibrational energy of phosphorus, and
This provides a phosphorus support mechanism with high mechanical strength.

Embodiments of the present invention will be described below based on the drawings.

As shown in FIGS. 1 to 3, a motor 1 is housed in a motor holding case 2. As shown in FIGS. A rotating shaft 3 is fixed to the rotating shaft 1a of the motor 1, and balls 4, 4 are slidably attached to both ends of the rotating shaft. A thin phosphor support plate 6 for holding the phosphor 5 is integrally provided on the outer periphery of the central portion of the motor holding case 2 to protrude laterally. A rib 7 is integrally provided around the phosphor support plate 6. The lower end portion of the rib 7 hangs downward from the lower surface of the phosphor support plate 6, and the upper end portion is flush with the upper surface of the phosphor support plate. That is, the ribs 7 are formed thickly in the thickness direction of the phosphorus support plate, and function to increase the strength against the elasticity of the phosphorus support plate. At the tip of the phosphor support plate 6, an elastic arm portion 6a is provided by providing a through groove 8 along the rib 7. The elasticity of the elastic arm portion 6a is set to a desired elasticity by appropriately selecting the width and length of the through groove 8. A support stand 9 for supporting the ring 5 is erected at the center of the tip of the elastic arm 6a. Therefore, the ring 5 has an elastic arm portion 6a having sufficient elasticity due to the through groove 8.
Since the bell is supported by the support part, the loss of vibration energy from the support part is extremely small, so when the bell is struck by the striking balls 4, it emits a clear and resonant ringing sound. In addition, when an unexpected impact force in the plate thickness direction due to an external force is applied, the phosphor 5 comes into contact with the rib 7 surrounding the elastic arm portion 6a, preventing further displacement of the phosphor, and also against the phosphor support plate 6. When some force is applied in the plane direction, the elastic arm portion 6a
Even when it is displaced in the plane direction, it is restricted by the ribs 7 and does not displace any further. That is, the ribs 7 increase the strength of the phosphor support plate 6, and act as a stopper against displacement of the phosphor 5 and the elastic arms 6a.

At the upper end of the motor holding case 2, claw parts 10, 10 for holding the motor 1 are provided so as to project inward and correspond to each other, and are provided upright on a frame 11 facing outward. Fitting parts 13, 13 into which the upper end of the support column 12 can be fitted are arranged in series, and a bottom plate 14 is horizontally suspended from the lower end. 1b and 1b are motor terminals.

As explained above, according to the present invention, since the phosphor is supported by the elastic arms having sufficient elasticity through the permeable groove, the loss of vibration energy can be minimized and the energy can be used effectively. . In addition, even if a strong impact force is applied due to an external force, the ribs restrict the displacement of the phosphor and the elastic arm in the thickness direction and surface direction, so the phosphor support plate will not be damaged and will maintain sufficient strength. .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a sectional view taken along the line shown in FIG. be. 5... Lin, 6... Lin support plate, 6a... Elastic arm portion, 7... Rib, 8... Transparent groove.

Claims (1)

[Scope of Claim for Utility Model Registration] A phosphor support plate having an integrally provided rib around the periphery and an elastic arm portion formed by a perforation groove bored along the rib at the distal end; A support structure for a ring in a bell striking device, characterized in that a ring is supported at the center of the tip of the elastic arm.