JPH0473227B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette mounting device using a cassette with a lid.

Conventional configuration and its problems In recent years, tape recorders have been trending towards Hi-Fi and high-density recording, and it has become necessary to cover the opening of the cassette to prevent dust and fingerprints from sticking to them. . This has already been implemented in video cassettes, etc., but for audio use it must be of a simple configuration, usable on both sides of A and B, and be realized at low cost. Therefore, it is necessary to propose a new cassette with a lid that can be constructed at low cost, and to realize a cassette mounting device compatible with it.

Purpose of the Invention The present invention has a simple lid opening/closing mechanism that can be used on either side A or B, and is compatible with new cassettes with lids so that the opening and closing positions can be set by a clip action or the like. The purpose is to realize a cassette mounting device.

Structure of the Invention The present invention provides a mechanism for moving a cassette in the setting direction during a setting operation of a cassette insertion setting mechanism, which consists of an insertion operation in the direction of the main plane and, after the insertion operation, a cassette setting operation in a direction substantially perpendicular to the direction of the main plane. The cassette lid is opened by the operation, and the cassette lid which is in the open state is closed by the movement of the cassette lid in the main plane direction during ejection.

DESCRIPTION OF EMBODIMENTS FIG. 1 is a side view showing an embodiment of a cassette with a lid in a closed state, in which 1 is an upper half of the cassette, 2 is a lower half of the cassette, 3 is an opening in the front of the cassette body,
4 is a cassette lid, 5 is a cassette lid rotation shaft, 6 is a projection for opening and closing the lid provided on the front side of the cassette lid, 7 is a fitting hole for the cassette lid rotation shaft 5, and cassette upper half 1, cassette lower half A substantially triangular shape tapering toward the rear is formed at the abutting portion of the half 2.
Reference numeral 8 denotes a spring-loading pin formed integrally with the lower cassette half 2, and reference numeral 9 denotes a cassette-lid rotation support shaft 5, which always urges the cassette lid 4 rearward by a spring hooked at one end thereof. FIG. 2 is a side view showing the open state, and FIG. 3 is a top view showing the inside of the cassette. Reference numeral 10 indicates a tape stored in the cassette.

In a cassette constructed in this manner, the lid is stably held in each opening/closing position, and a click action can be used during the operation, allowing for crisp switching between opening and closing.

FIG. 4 is a side view of an embodiment of the cassette loading device according to the present invention using such a cassette, showing the cassette being inserted. In Fig. 4, 11 is the main case, 12 is the cassette insertion slot of the main case, 1
3 is a cassette holding part, and 14 is a guide groove provided on the inner surface of the cassette holding part, which guides the cassette lid opening/closing protrusion provided on the side surface of the cassette lid 4.
It is characterized by passing only when it is in the closed state. 15 is a cassette lid closing abutting portion provided at the end of the guide groove;
Reference numeral 6 indicates a cassette-pressing plate spring provided on the upper surface of the cassette holding portion to hold the cassette within the holding portion. 1
Guide shafts 7 and 18 guide the vertical movement of the cassette holder 13, 19 a chassis, and 20 a cassette positioning pin, which regulates the front, rear, left, and right positions and height of the set cassette. 21 is a pin that regulates the rear height of the cassette; 22 and 23 are pillars that support the chassis 19 within the case; and 24 is a contact member for opening the cassette lid, which is located on the left and right sides of the cassette lid 4 and is placed on the chassis 19. installed on. 25
is the contact part.

FIG. 5 is a side view showing the position where the cassette holding part 13 has fallen from the state shown in FIG. 4 after the cassette has been inserted in order to set the cassette at a predetermined playing position.
The tip of the lid 4 contacts the cassette opening protrusion, and the lid 4 rotates clockwise around the rotation shaft 5, completing the opening of the lid 4 before the setting is completed. During resetting, the cassette remains open and rises together with the cassette holding portion 13, resulting in the state shown in FIG.

When the cassette is ejected from this state, the cassette lid opening/closing protrusion 6 comes into contact with the closing protrusion 15 and the lid 4 is removed.
is closed by rotating counterclockwise, and is ejected and removed in the closed state. In this way, the cassette lid opening/closing protrusion 6 is elongated parallel to the main plane direction when the lid is closed.
In addition, since one end thereof is provided at the position of the lid rotation support shaft 5, it is guided and regulated by the guide groove and the abutting part so that the direction of movement when inserting and ejecting the cassette and the direction of movement during setting and resetting match. The cassette lid can be opened and closed automatically with just the touch of a button, and the cassette lid can always be taken out in the closed state.

It should be noted that the operations such as inserting and ejecting the cassette and moving the cassette holding section up and down are not limited to being performed manually, but may, of course, be performed using a driving force stored in a motor electromagnet, a spring, or the like.

Effects of the Invention The present invention provides a cassette insertion mechanism that moves in the setting direction during the setting operation of the cassette insertion setting mechanism, which consists of an insertion operation in the direction of the main plane and, after the insertion operation, a cassette setting operation in a direction substantially perpendicular to the direction of the main plane. The movement opens the cassette lid,
Since the open cassette lid is closed when it moves in the main plane direction during ejection, it can be opened and closed automatically during each cassette insertion and ejection operation, preventing incorrect insertion of an open cassette. In addition, since the cassette is always in a closed state when being ejected and can be taken out, exposure of the recording medium such as the tape when handling or storing the cassette can be prevented, and the adhesion of dirt, dust, fingerprints, etc. can be prevented. In addition, the abutment member for opening and closing can be simply kept on standby on the insertion/ejection path, and no moving parts such as levers are required, so the structure is extremely simple, it can be implemented at low cost, and the opening/closing operation is reliable. This is what you get.

In addition, since the projection for opening and closing the cassette lid is always parallel to the moving direction of the cassette, the width of the escape groove and guide groove for the projection for opening and closing the cassette lid in the insertion and setting path of the cassette can be minimized, and the cassette can be guided easily. This can be done stably and reliably.

[Brief explanation of the drawing]

1 is a side view showing the closed state of the lid of a cassette with lid used in the cassette recorder of the present invention, FIG. 2 is a side view showing the opened state, FIG. 3 is a top view showing the inside, and FIG. FIG. 5 is a side view showing a cassette according to an embodiment of the present invention when it is inserted, FIG. 5 is a side view of the setting state, and FIG. 6 is a side view of the cassette immediately before being ejected. 4...Cassette lid, 13...Cassette holding part,
15...Abutting part for closing the cassette lid, 25...Abutting part for opening the cassette lid, 19...Chassis.

Claims (1)

[Claims] 1 A cassette mounting device using a cassette equipped with a U-shaped rotating lid having a protrusion elongated in the main plane direction on the side surface of the cassette in a closed state to open and close an opening on the front surface of the cassette, the lid being in a closed state. a cassette insertion/ejection path extending in the direction of the main plane that engages with the protrusion and allows the cassette to pass; a setting and resetting path formed in the opening position, a closed cassette lid opening contact portion formed near the starting position of the setting path, and an open cassette lid closure formed near the starting position of the ejection path. A cassette mounting device characterized in that it is provided with a contact portion for use.