JPH0543369U - Door opening / closing device for double cassette deck - Google Patents

Abstract

(57) [Summary] [Purpose] A single lock release mechanism that unlocks the door by pressing either the left or right eject button is incorporated, which simplifies the structure and reduces the cost. It was [Structure] In a double cassette deck in which the front parts of two cassette holders (A) and (B) arranged side by side are closed by one door (1), the door (1) is always A biasing mechanism (2) for biasing in the opening direction, a lock mechanism (3) for locking the door (1) in the closed position, and a lock release mechanism (4) for unlocking the lock mechanism.
Arms (5a), (6a) that include a contact (4c) of the lock release mechanism (4) and are connected to the eject buttons (5), (6) of the cassette holders (A), (B), respectively.
The cams (5b) and (6b) provided on the door are elastically contacted so that no matter which eject button is pressed, the lock release mechanism (4) is operated by the cam to unlock the door (1). .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door opening / closing device including a door locking and unlocking mechanism in a double cassette deck in which the front parts of two cassette holders arranged side by side are closed by a single door. ..

[0002]

[Prior Art]

 In general, many double cassette decks in which two cassette holders are arranged side by side are provided in which the front part is closed by a single door. The door is always biased in the opening direction and is locked in the closed position by the lock mechanism. When the lock is released, the door is formed to open in the forward tilted posture. In the past, a dedicated lock release mechanism was provided for each of the eject button of the right cassette holder and the left cassette holder.

[0003]

[Problems to be solved by the device]

 In such a conventional structure, since two sets of the unlocking mechanism are required, there is a problem in that the structure is complicated, the assembly is troublesome, and the cost is high.

Therefore, the main object of the present invention is to incorporate a single unlocking mechanism that unlocks the lock by pressing either the left or right eject button, thereby simplifying the structure and reducing the cost. Is.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the door opening / closing device in the double cassette deck according to the present invention, the front part of the two cassette holders (A) and (B) arranged side by side is one door. In a double cassette deck that is closed by (1), a mechanism (2) that constantly biases the door (1) in the opening direction and a lock mechanism (3) that locks the door (1) in the closed position. , The lock release mechanism (4) for releasing the lock of the lock mechanism, and the contact (4c) of the lock release mechanism (4) is connected to the eject button (4) of the cassette holder (A), (B). 5) and 6) are elastically contacted with the cams (5b) and (6b) provided on the arms (5a) and (6a) connected to the lock release mechanism (4) even if any eject button is pressed. ) Is operated to unlock the door (1).

[0006]

[Action]

 In the door opening / closing device configured as described above, the cam (5b) or (6b) is activated by pressing either the right eject button (5) or the left eject button (6). The lever (3b) is pushed up, the door (1) is unlocked, and the door is released in the forward tilted posture.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. In the figure, symbol (1) is a door that closes the front parts of two cassette holders (A) and (B) arranged side by side, and the door (1) is a biasing mechanism such as a spring. It is always urged in the opening direction, which is a forward leaning posture, by (2), but it is locked in a vertical closing posture by a lock mechanism (3). In this lock mechanism (3), the engaging protrusion (3c) provided at the front end of the lever (3b) swinging about the shaft (3a) and the engaging protrusion (3c) are elastically engaged. The lever (3b) is pressed by a biasing member such as a spring (not shown) so that the engaging concave and convex portion is elastically engaged.

Reference numeral (4) is a lock release mechanism for releasing the lock, which is provided so as to be vertically movable along the guide (5) while being constantly pressed downward by the spring (4a). It consists of a vertical arm (4b) and a contactor (4c) such as a roller provided at the lower end of the arm (4b), and the upper end of the vertical arm (4b) is the play of the lever (3b) of the lock mechanism. It is in contact with the lower surface of the end portion. Further, the eject buttons (5) and (6) of the cassette holders (A) and (B) are formed so as to project from the front center portion of the cassette deck frame (7), and the eject buttons (5) and (6) are attached to the eject buttons (5) and (6). Cams (5b) and (6b) are provided on the upper surfaces of the continuous arms (5a) and (6a), and the contact (4c) of the unlocking mechanism is elastically contacted with these cams (5b) and (6b). Has been done.

In the door opening / closing device configured as described above, the cam (5b) or (6b) operates and the lock is activated by pressing either the right eject button (5) or the left eject button (6). The lever (3b) of the lock mechanism is pushed up, the door (1) is unlocked and the door can be opened. The cassette holders (A) and (B) independently rotate by pushing the eject buttons (5) and (6) to the eject position that is inclined forward. Therefore, detailed description is omitted.

Although a typical embodiment of the present invention has been described above, the present invention is not necessarily limited to only the above-described embodiment structure. For example, the contact (4c) of the lock release mechanism (4) may be formed by a sliding surface having a small friction coefficient instead of the roller, and the lever (3b) of the lock mechanism (3) and the lock release mechanism (4) may be formed. The vertical arm (4b) may be connected via a pivot. In addition, the present invention can be implemented with appropriate modifications within the scope of having the constituent features and effects.

[0011]

[Effect of the device]

 As described in detail above, in the present invention, since the lock release mechanism for releasing the door lock is configured to operate even if any of the left and right eject buttons is pressed, only one lock release mechanism is required. As a result, the structure is simplified and the assembly is facilitated, and the causes of troubles are reduced and the cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a double cassette deck in which a door opening / closing device according to the present invention is implemented.

FIG. 2 is a cross-sectional view of a door opening / closing device according to the present invention.

FIG. 3 is a partially cutaway vertical sectional view of a door opening / closing device according to the present invention.

[Explanation of symbols]

 (1) Door (2) Energizing mechanism (3) Lock mechanism (4) Lock release mechanism (4c) Contact of lock release mechanism (5), (6) Eject button (5a), (6a) Arm (5b) , (6b) Cam (A), (B) Cassette holder

[Procedure amendment]

[Submission date] January 24, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (1)

[Scope of utility model registration request] 1. A double cassette deck in which the front portions of two cassette holders (A) and (B) arranged side by side on the left and right are closed by one door (1), the door (1) Includes a biasing mechanism (2) that constantly biases the door in the opening direction, a lock mechanism (3) that locks the door (1) in the closed position, and a lock release mechanism (4) that unlocks the lock mechanism. , The contact (4c) of the unlocking mechanism (4) to the respective cassette holder (A),
Arms (5a), (6) connected to eject buttons (5), (6) of (B)
In order to unlock the door (1) by elastically contacting the cams (5b) and (6b) provided in a), any of these eject buttons will cause the lock release mechanism (4) to operate by the cam. A door opening / closing device for a double cassette deck characterized by being configured.