JP2007220275A - Closing flap device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a closing flap device which is readily constituted with less structure members, assembled easily, and accurately positioned surely in a closing position. <P>SOLUTION: A protrusion section 8 is located in a closing flap 3 in parallel to a pivot axis 7. The protrusion section 8 can move on a concentric circular orbit to the pivot axis 7 by the turning of the closing flap, and is loaded with a force of a preloaded spring in the transverse direction to the pivot axis 7. When the spring is not most loaded, the closing flap 3 is in the closing position, and when the closing flap 3 is displaced from the closing position, the spring is loaded so as to increase stress with the protrusion section 8. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is a closure flap device, which is provided with a closure flap for closing an insertion opening for a data medium in the casing of the data device, wherein the closure flaps face each other Pivot pins projecting coaxially with each other in the edge region, the pivot pins being pivotably mounted in corresponding bearing notches provided in a fixed part of the casing of the data device, In the case of a type in which the closing flap is pivotable about the pivot axis defined by the pivot pin from the closed position defined by the positioning means to the open position against the spring force.

  In this type of closure flap device, the closure flap is force-loaded in the opposite direction by two springs, and the opposite forces of the springs are of the same magnitude in the closure position of the closure flap. It is known.

  In order to define the closed position, there is no stopper that could cause the closing flap to collide so as to generate noise.

  With this known device, it is necessary to adjust the spring precisely so that the force balance of the spring is just in the defined closed position of the closure flap.

  Thus, springs acting diametrically opposite to each other are not allowed to be mistaken or damaged during assembly, or not allowed to be assembled at all. Furthermore, the assembly cost is high due to the large number of springs.

  Accordingly, the object of the present invention is to provide an improved closure flap device of the type described at the outset, which is easily constructed with fewer components, is easy to assemble and can be reliably and accurately positioned in the closed position. That is.

  In order to solve this problem, in the configuration of the present invention, a protruding portion is arranged on the closing flap in parallel to the turning axis, and this protruding portion is concentric with the turning axis by turning of the closing flap. Is movable in a circular path and is force-loaded by a pre-loaded spring in the transverse direction perpendicular to the pivot axis, and when the spring is least loaded, the closure flap is in the closed position, When the closing flap is displaced from the closed position, the spring is loaded so that the stress is increased by the protruding portion.

  Advantageously, in this case, the projecting part is formed integrally with the pivot pin and is an offset axial extension of the pivot pin.

  Since the protrusion or protrusions are only loaded by one spring, the assembly and component costs are small.

  The closed position is defined by the fact that the protrusion or protrusions are swung on the moving circular track to a position where the load by the spring force of the spring is the least. Regardless of the swivel direction, by pivoting from this closed position, the spring force always increases, so that when the closure flap is not loaded, the closure flap necessarily pivots to its closed position, where It is also retained.

  Collisions that cause noise with the stationary stopper are avoided at the same time. This is because such a stopper is not necessary for defining the closed position.

  Since the occupation of the closed position is not related to the magnitude of the spring force, it is not necessary to observe the narrow force tolerance of the spring.

  When the pivot pin is pivotally supported by a flap holder frame that has an insertion opening and can be coupled to the casing, it is possible to perform front assembly that facilitates assembly as one component group.

  In a simple configuration, the spring may be a leaf spring arranged immovably in one end region thereof. This leaf spring is applied to the projecting portion by preloading in the other free end region.

  In this case, the spring can be immovably arranged on the casing or the flap holder frame at one end region thereof.

  A possibility for constructing the leaf spring at low cost is that the leaf spring is made of metal.

  It is likewise advantageous if the leaf spring is made of plastic.

  The casing or flap holder frame may be a plastic member, in particular a plastic injection molded member.

  In this case, a special assembling operation can be omitted, and the leaf spring can be immovably disposed on the casing or the flap holder frame by embedding molding.

  Further reduction in assembly costs can be achieved by the leaf spring being a component that is secured to the casing or flap holder frame by injection molding.

  If the bearing notch is a bearing notch that can be loaded by applying one or more springs to the bottom of the pivot pin with one or more springs, the closing flap is assembled in the direction opposite to the direction of the spring force. To do this, it is only necessary to mount the pivot pin in the open bearing notch. The pivot pin is held in the bearing notch by a spring.

  In particular, when the springs are arranged on both projecting portions, the pivot pin is always held against the bottom of the support notch without chattering.

  A particularly secure lock in the closed position is that the projection has a flat load surface, and a spring is applied to this load surface, and in this configuration the load surface is spring-loaded in the closed position of the closing flap. This is achieved by extending at right angles to the force direction.

  The best mode for carrying out the invention will be described in detail with reference to the drawings.

  The illustrated closure flap device has a flap holder frame 1 with a square insertion opening 2.

  With this insertion opening 2, a data medium such as MD (Minidisk) can be inserted into the casing of a data device such as an MD player.

  The insertion opening 2 is normally closed by a closing flap 3, which is opened only for inserting a data medium.

  For this purpose, the flap holder frame 1 is formed with a long hole-like support notch 4 in the upper region on both sides of the insertion opening 2. These support notches 4 extend in the direction of insertion of the data medium and have an open mouth at one end.

  The bottom 5 of the closed end of the bearing notch 4 has a semicircular contour.

  The closing flap 3 has a pivot pin 6 projecting laterally with the same diameter as the width of the bearing notch 4 at its upper end. The swivel pin 6 extends along a swivel axis 7, and the closing flap 3 can swivel in an assembled state around the swivel axis 7.

  When the closing flap 3 is attached to the insertion opening 2 in the axial direction, both swiveling pins 6 are simultaneously inserted until they are brought into contact with the bottom 5 of the bearing notch 4.

  Both swivel pins 6 each have one protruding portion 8 as an offset portion. These projecting portions 8 extend parallel to the turning axis 7 and can move on a circular path concentric with the turning axis 7 by turning the closing flap 3.

  Leaf springs 9 and 9 'are immovably disposed on the sides of the end region of the insertion opening 2 in the lower region of the flap holder frame 1, respectively. These leaf springs 9, 9 ′ extend substantially arcuately towards the projecting part 8, where these leaf springs 9, 9 ′ are preloaded, ie spare, in their free end region. The pivot pin 6 is applied to the flat load surface 10 so that the swivel pin 6 is pressed against the bottom 5 of the bearing notch 4 by the load.

  The spring force of the leaf springs 9 and 9 ′ is directed to the load surface 10 of the projecting portion 8 at a right angle to the pivot axis 7. The installation portion 8 is moved to the position displaced most in the spring force direction 11 by the leaf springs 9 and 9 ′. In this position, the preload of the leaf springs 9, 9 'is minimal and the closing flap 3 is in its closed position.

  In the embodiment of FIGS. 1 and 2, the leaf spring 9 is a separate component made of metal. As can be seen from FIG. 2, the leaf spring 9 is inserted at one end into the fixed notch 12 of the flap holder frame 1 and is locked there, so that the leaf spring 9 is plastic injection molded. The flap holder frame 1 formed as a molded member is immovably disposed.

  4 and 5, the flap holder frame 1 is similarly formed as a plastic injection molded member. In this case, the leaf spring 9 'is also made of plastic and is fixed to the flap holder frame 1 by injection molding. Has been.

  By forming the projecting portion 8 offset from the pivot pin 6, the closing flap 3 can be displaced from its closed position in order to insert the data medium into the casing of the data device. In this case, the projecting portion 8 increases the preload of the leaf springs 9 and 9 ′ by the turning motion.

  When the opening load on the closing flap 3 is finished, the leaf springs 9, 9 'turn the projecting part 8 back again until the preload of the leaf springs 9, 9' is minimized, in which case the closing flap 3 Take its closed position. If the closing flap 3 pivots beyond this closing position, the preload force of the leaf springs 9, 9 'will increase again. This again causes the closing flap 3 to pivot back to the closing position.

1 is a partial perspective view of a first embodiment of a closure flap device. FIG. It is a perspective view of the leaf | plate spring of the closure flap apparatus of FIG. FIG. 6 is a partial perspective view of a second embodiment of the closure flap device. FIG. 4 is a partial perspective view of a flap holder frame of the closing flap device of FIG. 3. FIG. 4 is a partial perspective view of the closing flap of the closing flap device of FIGS. 1 and 3.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Flap holder frame, 2 Insertion opening, 3 Closing flap, 4 Bearing notch, 5 Bottom part, 6 Turning pin, 7 Turning axis, 8 Protruding part, 9, 9 'Leaf spring, 10 Load surface, 11 Spring force direction, 12 Fixed cutout

Claims (12)

  A closure flap device, wherein the closure flap device is provided with a closure flap for closing an insertion opening for a data medium in the casing of the data device, the closure flaps being mutually connected in edge regions facing each other. A pivot pin projecting coaxially, said pivot pin being pivotally supported in a corresponding bearing notch provided in a fixed part of the casing of the data device, the closing flap being positioned by the positioning means In the type that can pivot about the pivot axis defined by the pivot pin from the closed position defined by the above to the open position against the spring force, the closure flap (3) is connected to the pivot axis (7) A projecting part (8) is arranged in parallel with the projecting part (8) on a circular orbit concentric with the turning axis (7) by the turning of the closing flap (3). If it is movable and is force-loaded by a preloaded spring in a transverse direction perpendicular to the pivot axis (7) and the spring is least loaded, the closing flap (3) is in the closed position A closure flap device, characterized in that, when the closure flap (3) is displaced from the closed position, the spring is loaded in such a way that the stress is increased by the projection (8).   The closure flap device according to claim 1, wherein the projecting portion (8) is formed integrally with the pivot pin (6) and is an axial extension of the pivot pin (6) which is shifted.   3. The closure flap device according to claim 1, wherein the pivot pin (6) is pivotally mounted on a flap holder frame (1) that is connectable to the casing and has an insertion opening (2).   The spring is a leaf spring (9, 9 ') arranged immovably in one end region thereof, the leaf spring (9, 9') being preloaded in the other free end region The closure flap device according to any one of claims 1 to 3, which is applied to the projecting portion (8) by means of.   4. The closure flap device according to claim 1, wherein the spring is fixedly arranged on the casing or the flap holder frame (1) in one end region thereof. 5.   6. The closure flap device according to claim 1, wherein the leaf spring (9) is made of metal.   6. The closure flap device according to claim 1, wherein the leaf spring (9 ') is made of plastic.   8. The closure flap device according to claim 1, wherein the casing or the flap holder frame (1) is a plastic member, in particular a plastic injection molded member.   9. A closure flap device according to claim 6 or 8, wherein the leaf spring (9) is immovably arranged in the casing or flap holder frame (1) by embedding molding.   The closure flap device according to claim 7 or 8, wherein the leaf spring (9 ') is a component fixed to the casing or the flap holder frame (1) by injection molding.   The bearing notch (4) is a bearing notch (4) opened in a direction opposite to the direction of the spring force (11), and a pivot pin with respect to the bottom (5) of the bearing notch (4) 11. A closure flap device according to any one of the preceding claims, wherein (6) is loadable to be applied by one or more springs.   The projecting part (8) has a flat load surface (10), a spring is applied to the load surface (10), and the load surface (10) closes the closing flap (3). 12. A closure flap device according to claim 1, wherein the closure flap device extends in a position perpendicular to the force direction (11) of the spring.

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