JP5071225B2 - Cartridge storage device and electronic device - Google Patents

Description

  The present invention relates to an improvement of a holding structure for a cartridge that is detachably mounted on an in-vehicle electronic device, and more particularly, a cartridge having a holding structure that can prevent cartridge detachment, poor connection of electrical contacts, failure, and the like due to vibration and impact. The present invention relates to a storage device.

XM satellite radio is known as satellite digital radio in the United States. In order to listen to this XM satellite radio in a vehicle, for example, it is necessary to attach a dedicated cartridge storing necessary data such as an ID for authentication and tuner software to a dedicated tuner box and connect it to an on-vehicle acoustic device. is there. Conventionally, a cartridge storage device that is externally attached to the tuner box body has been used.
The cartridge storage device includes a receiving port for receiving a cartridge having a terminal at the front end portion from the front end portion, a cartridge storage space located inside the receiving port, and a cartridge storage space provided at the back of the cartridge storage space so as to be attached to and detached from the terminal. The holding force of the stored cartridge depends exclusively on the mechanical joining force between the terminal and the connector.
However, since there is a limit to setting an excessively strong mechanical joint force between the terminal and the connector, which requires smooth detachability, the joint between the terminal and the connector is a means for securing the holding force of the cartridge. It is insufficient. On the other hand, when an XM satellite radio equipped with such a cartridge storage device is used in a vehicle, rattling between the cartridge and the cartridge storage space due to vibration and impact due to insufficient holding force of the cartridge. Occurs, local wear and tear, rattle noise occurs, and continuity failure and failure of the connection portion between the terminal and the connector are likely to occur.
Patent Documents 1 and 2 disclose a configuration in which a cartridge-side terminal and a connector inside the insertion portion are connected when the cartridge is mounted in the insertion portion. A configuration for preventing the occurrence of poor connection is not disclosed.
Such a problem occurs not only in the XM satellite radio but also in general electronic devices including the same cartridge storage device.
Japanese Patent Application Laid-Open No. 08-315925 JP 2000-123119 A

  The present invention has been made in view of the above, and is a drawback in a conventional cartridge holding structure that relies only on the mechanical joining force between a terminal provided on the cartridge side and a connector provided on the cartridge storage device side. An object of the present invention is to provide a cartridge storage device and an electronic device having a simple locking structure for eliminating vulnerability to vibration and impact.

To achieve the above object, a cartridge storage device according to the invention of claim 1 is provided in a cartridge storage space for receiving and storing a cartridge having a terminal at one end portion from the end portion side, and in the cartridge storage space. And a connector portion that is attached to and detached from the terminal, and an engagement piece that engages with a recess provided on a surface of the cartridge protrudes from an inner wall of the cartridge accommodation space. The engaging piece passes through the recess and the inclined continuous surface in the process of inserting the cartridge into the cartridge housing space, and is brought into an engaged state by contacting with the locked portion. becomes inclined and has a side, and, the cartridge the cartridge accommodating cavity in the connector portion of the terminal by said recess and engageable upon insertion completed Characterized by locking the cartridge in the cartridge receiving cavity in a state of being connected.
Since a cartridge holding mechanism having an extremely simple configuration is employed, it is possible to provide a cartridge storage device that does not shake against vibration and impact without depending on the connection force between the terminal and the connector .
Cartridge storage apparatus according to the invention of 請 Motomeko 2, the contact portion of the engagement piece to be engaged with the recess of the cartridge according to claim 1, characterized in that it is configured in a curved shape.
An electronic apparatus according to a third aspect of the invention includes the cartridge storage device according to the first or second aspect.

  According to the present invention, it is possible to secure a necessary and sufficient holding force as a lock function for a cartridge, and to eliminate vulnerability to vibration and impact without causing a complicated structure and an increase in size.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
FIG. 1A is an external perspective view showing a configuration of a cartridge to be mounted on the cartridge storage device of the present invention, and FIGS. 1B and 1C are explanatory diagrams of the configuration of the cartridge storage device before and after mounting the cartridge. 2 (a) and 2 (b) are perspective sectional views showing the configuration of the cartridge storage device before and after mounting the cartridge, and FIGS. 3 (a) and 3 (b) are mounted with the cartridge. It is a perspective sectional view showing the locked state before and after mounting. 4 (a) and 4 (b) are cross-sectional views showing the configuration of the cartridge storage device before and after mounting the cartridge, and FIG. 5 shows the engagement state between the engagement piece and the locked portion. FIG.
In the present embodiment, a tuner device for receiving an XM satellite radio in the United States will be described as an example of an electronic device incorporating the cartridge housing portion of the present invention.
The tuner device main body (cartridge storage device) 30 incorporates a cartridge storage portion 10 for attaching and detaching the dedicated cartridge 1.
As shown in FIG. 1 (a), the cartridge 1 has a thin box shape, and has a terminal 2 on the tip surface and a locked portion 4 on the upper surface.
On the upper surface of the cartridge, there are provided a recess 3, a locked portion 4 and a convex portion 5 which are successively connected to the front end side of the recess 3. The recess 3 has a rectangular bottom surface 3a and an inclined continuous surface 3b that gradually increases in height from the leading edge of the bottom surface 3a in a tapered shape. The convex portion 5 is formed of a flat surface that is connected to the distal end edge of the inclined continuous surface 3b and extends in the distal direction. The locked portion 4 is an obtuse corner portion located at the boundary between the inclined continuous surface 3 b and the convex portion 5. In addition, an inclined continuous surface 3b and other three inclined surfaces 3c are located on four sides of the bottom surface 3a of the recess.

The cartridge storage portion (hereinafter referred to as storage portion) 10 according to the present invention uses the shape of the locked portion 4 provided on the upper surface of the cartridge, and has a necessary and sufficient locking force for the mounted cartridge 1. It is configured to hold by.
That is, the storage unit 10 includes a receiving port 11 for receiving the cartridge 1 having the locked portion 4 on the upper surface and the terminal 2 on the front end from the front end, and a cartridge storage space located inside the receiving port 11. 12 and a connector portion 13 provided at the back of the cartridge housing space 12 and attached to and detached from the terminal 2 when the cartridge is attached or detached.
The inner wall (upper surface) of the cartridge storage space 12 is provided with an engagement piece 15 that engages with the locked portion 4 of the cartridge, and the engagement piece 15 is provided when the cartridge 1 is completely inserted into the cartridge storage space 12. The cartridge is locked and held in the cartridge housing space 12 in a state where the terminal 2 is connected to the connector portion 13 by press-contacting to the locked portion 4 and elastically locking it. ing.
In the present embodiment, the engagement piece 15 is projected on the lower surface of the top plate 16 of the cartridge storage space 12, and the top plate 16 according to this example is against the outer peripheral wall constituting the cartridge storage space 12. It is a lid fixed with screws. FIG. 6A is a perspective view showing the lower surface of the top plate 16, and the engagement piece 15 is composed of a thin plate-like projecting piece, and two thin plate-like engagement pieces 15 are formed on the lower surface 16 a of the top plate 16. Has been placed. As shown in FIG. 5, the engagement piece 15 includes a hanging side 15a extending downward from the flat top plate lower surface 16a, an inclined side 15b extending obliquely rearward and downward from the lower end of the hanging side 15a, and a rear side from the rear end of the inclined side 15b. A horizontal side 15c extending horizontally is provided. The inclined piece 15b is configured to form an obtuse angle θ with respect to the cartridge attaching / detaching direction A.

Further, the contact portion (inclined side 15b) of the engaging piece 15 that engages with the concave portion (the locked portion 4) of the cartridge is formed in a curved shape (curved surface). That is, the contact portion (inclined side 15b) of the engagement piece 15 with the concave portion of the cartridge has a curved shape (R shape) instead of a linear shape. By making the contact portion curved, it is possible to prevent the cartridge from being damaged when the cartridge is attached or detached. Also, the attaching / detaching operation (especially the operation for removing) becomes smooth. If the contact portion is a straight line, the catch is too large and it is difficult to remove. In order to provide a force for reliably pressing the cartridge and to obtain easy attachment and detachment, the shape is preferably curved (curved surface).
Moreover, the number of the engagement pieces 15 may be two or more. When the number of the thin plate-like engagement pieces is one, the stability at the time of engagement is lowered, so that the number is preferably two or more.
Alternatively, as shown in FIG. 6B, a block-like engagement piece 15 continuous in the width direction may be used. The end face shape of the engagement piece 15 is the same as that of the thin plate-like engagement piece 15 in the above embodiment. According to this, it is possible to stably hold the cartridge while being one engagement piece 15.
As shown in FIGS. 2 (a), 3 (a), and 4 (a), when the cartridge 1 is started to be inserted into the cartridge storage space 12 through the receiving port 11 from the front end thereof, the cartridge is moved to its bottom surface. And proceed to the inner back while being guided by the bottom plate 17. On the other hand, the upper surface of the cartridge is engaged with the engagement piece 15 with the flat convex portion 5 first, and when the mounting is completed as shown in FIGS. 2B, 3B, and 4B, the cartridge is completed. Since the inclined side 15b constituting the engagement piece 15 contacts the locked portion 4 on the side, the cartridge can be kept in the storage position in a stable state.
In addition, you may raise the force which latches the to-be-latched part 4 by making the top part of the to-be-latched part 4 as an obtuse angle part, and the inclined side 15b contact point (line contact), and the inclined side 15b and inclination You may make it surface-contact with the continuous surface 3b.
Moreover, you may make it raise the latching force with the to-be-latched part 4 by forming a fine groove | channel in the inclined side 15b, and roughening.

As described above, according to the present invention, since the cartridge holding mechanism having a very simple configuration is adopted, the cartridge housing does not depend on the connection force between the terminal and the connector and does not shake against vibration and shock. An apparatus can be provided.
The cartridge storage device of the present invention can be applied to general electronic devices having a configuration in which a cartridge having a terminal is stored to realize mechanical connection simultaneously with electrical connection.

(A) is an external perspective view showing a configuration of a cartridge mounted on the cartridge storage device of the present invention, (b) and (c) are configuration explanatory views of the cartridge storage device before and after mounting the cartridge. . (A) And (b) is a perspective sectional view which shows the structure of the cartridge storage apparatus before mounting | wearing with a cartridge, and after mounting | wearing. (A) And (b) is a perspective sectional view which shows the latching state before mounting | wearing with a cartridge, and after mounting | wearing. (A) And (b) is sectional drawing which shows the structure of the cartridge storage apparatus before mounting | wearing with a cartridge, and after mounting | wearing. It is an enlarged view which shows the engagement state of an engagement piece and a to-be-latched part. (A) And (b) is the perspective view which showed the lower surface of the top plate, respectively.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Cartridge, 2 ... Terminal, 3 ... Recess, 3a ... Bottom surface, 3b ... Inclined continuous surface, 3c ... Inclined surface, 4 ... Locked part, 5 ... Convex part, 10 ... Cartridge storage part, 11 ... Acceptance Mouth, 12 ... Cartridge storage space, 13 ... Connector portion, 15 ... Engagement piece, 15a ... Suspended side, 15b ... Inclined piece, 15b ... Inclined side (contact part), 15c ... Horizontal side, 16 ... Top plate, 16a ... lower surface, 17 ... bottom plate, 30 ... tuner device (cartridge storage device) body

Claims (3)

A cartridge storage device comprising a cartridge storage space for receiving and storing a cartridge having a terminal at one end portion from the end side, and a connector portion provided in the cartridge storage space and attached to and detached from the terminal. And
An engagement piece that engages with a recess provided on the surface of the cartridge protrudes from the inner wall of the cartridge storage space, and the engagement piece is inserted into the cartridge storage space in the process of inserting the cartridge into the cartridge storage space. It has an inclined side that passes through the recess and the inclined continuous surface and is brought into an engaged state by contacting the locked portion, and the cartridge is inserted into the cartridge housing space. A cartridge storage device for engaging the cartridge in the cartridge storage space with the terminal connected to the connector portion by engaging with the recess when completed. The cartridge storage device according to claim 1 , wherein a contact portion of the engagement piece that engages with the concave portion of the cartridge is formed in a curved shape. An electronic apparatus comprising the cartridge storage device according to claim 1 .

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