JPH043357A - Recording/playback device - Google Patents

Abstract

PURPOSE:To completely prevent misinsertion by engaging a tape cassette with both 1st and 2nd engaging parts when it is regularly inserted, withdrawing 1st and 2nd preventing parts in order not to prevent the complete loading of the cassette and preventing the cassette with at least one of the preventing parts when it is longitudinally inserted. CONSTITUTION:The device main body 110 is composed of a chassis 101 and a front panel 102, and the panel 102 is provided with a cassette inserting hole 140 to perform the insertion and ejection of the tape cassette 1. A movable holding means 202 is provided between side plates 150 and 151 disposed nearly vertically right and left on the chassis 101, where a supply side cassette guide part 202a and a take-up side cassette guide part 202b are provided on inner surfaces of the above right and left side plates respectively, and a loading lever 207 is provided to be freely turnable around boss parts 205 and 206 of the means 202. Then, the means 202 is capable of sliding to be guided by a guide groove 153 of the side plate 150, and 1st and 2nd stoppers 210 and 220 are provided around a turning shaft 212 to prevent interference of 1st and 2nd regulating parts 211 and 221.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a recording/reproducing device, and more particularly to a device for preventing incorrect insertion of a tape cassette when the tape cassette is loaded into the device.

BACKGROUND OF THE INVENTION In recent years, video tape recorders (hereinafter referred to as VTRs) of various formats have been released by various companies, and their popularity is increasing year by year. By the way, tape cassettes compatible with various formats and tape cassettes of the same format but of different sizes have begun to be on the market, and users have had to be careful in terms of compatibility.

An example of a conventional recording/reproducing device will be described below with reference to the drawings.

FIG. 17 is a plan view of a conventional recording/reproducing device, FIG. 18 is a perspective view of the tape cassette seen from the bottom, and FIG. 19 is a left side view of FIG. 17 showing a state in which the tape cassette is incorrectly inserted into the device. FIG. 20 is a left side view of FIG. 17 showing the tape cassette inserted into the device in the normal direction, and FIG. 21 is a view taken along the arrows in FIGS. 19 and 20.

As shown in FIGS. 17, 18, and 20, a device main body 110 is composed of a chassis 101 and a front panel 102 on the front thereof. The front panel 102 is provided with a cassette insertion port 140 through which the tape cassette 1 can be inserted and ejected.

Side plates 150 are arranged approximately vertically on the left and right sides of the chassis 101. The holding means 1 is movable between 151 and 151.
52, and as shown in FIGS. 19 and 20, guide portions 153, 15 are provided on both left and right side surfaces of the holding means 152.
4 is formed.

Guide part 153. 154 is slidably fitted into a guide groove 153a provided in the side plate 150. The tape cassette 1 inserted through the cassette insertion opening 140 is guided by a regulating portion 160 formed on the front surface of the holding means 152 so that it can be inserted into the holding means 152. or,
Between the side plates 150 and 151 is the top plate 1.
55 has been constructed.

A mounting lever 157 is rotatably provided around a boss portion 156 provided on the left and right inner sides of the holding means 152. The mounting lever 157 is attached to the protrusion 155a of the top plate 155.
A locking portion 157a that engages with the locking portion 157a.

It is composed of an actuating part 157b that engages with the tape cassette 1, and a biased part 157C that engages with the holding means 152 via a tension spring 158. is energized by

Tape cassette, for example VH3 (VH8
A tape cassette 1 used in a VTR (registered trademark of Nippon Victor Co., Ltd.) has a notch 1c approximately in the center of a front cover 1a and a lower cassette half 1b. Further, approximately in the center of the holding means 152 is a notch I of the tape cassette 1.
A protrusion 152a is formed to correspond to C (see FIG. 21). Therefore, when the tape cassette 1 is inserted in the normal direction from the cassette insertion opening 140 (hereinafter abbreviated as normal insertion), the tape cassette 1 can be inserted while avoiding the protrusion 152a. After this, when the tape cassette 1 is further inserted into the holding means 152, the exposed portion 1d (see FIG. 18) of the lower cassette 1b (see FIG. 18) engages with the operating portion 157b of the mounting lever 157, as shown in FIG. match. Therefore, the mounting lever 157 rotates clockwise around the boss portion 156 to release the engagement with the protruding portion 155a of the top plate 155.

On the other hand, when the tape cassette 1 is inserted from the cassette insertion opening 140 with the side surface 1e facing the cassette insertion direction (hereinafter abbreviated as vertical insertion), the protrusion 152a prevents incorrect insertion. Here, even if the holding means 152 receives a force F1 in the direction shown in FIG. 19 due to incorrect insertion of the tape cassette 1,
When the locking portion 157a of the mounting lever 157 is locked with the protrusion 155a of the top plate, the holding means 15
2 cannot slide in the direction b along the guide groove 153a.

The operation of the recording/reproducing apparatus configured as above will be described below.

First, a case will be described in which the tape cassette 1 is inserted normally.

The tape cassette 1 inserted from the cassette insertion port 140 is guided by the regulating part 160 of the holding means 152, and
Move to the position indicated by the two-dot chain line in FIG. When the tape cassette 1 is further moved in the direction indicated by the arrow, a notch 1 is formed in the front lid 1a and the lower cassette half 1b of the tape cassette 1.
c is formed, the protrusion 15 of the holding means 152
It can be inserted without interfering with 2a. After this, when the tape cassette 1 is further inserted in the b direction, the second
As shown in FIG. 0, the exposed portion 1d of the lower cassette half 1b comes into contact with the operating portion 157b of the mounting lever 157. With this operation, the mounting lever 157 rotates clockwise against the biasing force of the tension spring 158, and its locking portion 157a is released from the locking by the protruding portion 155a of the top plate 155. At this point, the tape cassette 1 is attached to the holding means 15.
2 has been completely installed. Therefore, the holding means 1
When the tape cassette 1 further receives an insertion force Fl in the direction shown in FIG. becomes.

Problems to be Solved by the Invention However, the above configuration has the following problems.

(1) The method of providing a protrusion approximately in the center of the holding means to prevent vertical insertion of the tape cassette is effective only for VH8 type VTRs and tape cassettes used in the VTRs,
Other types of tape cassettes (e.g. VH8-C cassette, 8■ tape cassette, audio tape cassette, etc.)
In this case, vertical insertion of the tape cassette is prevented using this method, but it is not possible. In other words, it cannot be said to be a versatile vertical insertion prevention mechanism.

(2) In order to prevent vertical insertion of the tape cassette, it is necessary to provide a protrusion approximately in the center of the holding means;
There is little freedom in designing the holding means.

(3) If a different type of tape cassette, for example a small tape cassette smaller than a standard tape cassette, is mistakenly inserted into a recording/reproducing apparatus using a standard tape cassette, it cannot be completely prevented by the holding means.

In view of the above-mentioned problems, the present invention provides VH using an extremely simple mechanism.
A recording/playback device that can completely prevent wrong insertion of a tape cassette in not only the S type but also all types of recording and playback devices, and also allows flexibility in the shape of the holding means, and a recording/playback device that can prevent wrong insertion of tape cassettes of different types. The present invention provides a recording/reproducing device that can reliably and quickly block the insertion of a magnetic disk with an extremely simple mechanism and improves operability.

Means for Solving the Problems In order to solve the above problems, the recording and reproducing apparatus of the present invention includes a cassette insertion slot into which a tape cassette is inserted, a holding means for holding the tape cassette inserted from the cassette insertion slot, and a tape cassette. When inserted into the holding means, it has a first engaging part that engages near the side wall of the supply tape wrapping body on the outer peripheral surface of the tape cassette, and is located on the take-up tape wrapping body side and holds the tape cassette. The tape cassette moves to an operative position that prevents movement of the tape cassette from a first position where it is inserted into the holding means to a second position where it is completely attached to the holding means, and a non-operative position that does not prevent movement of the tape cassette from the first position to the second position. the tape cassette is inserted into the holding means; the tape cassette is inserted into the holding means; In this case, the second engaging portion is provided near the side wall of the take-up tape wrapping body on the outer peripheral surface of the tape cassette, and is located on the supply tape wrapping body side, and is moved from the first position to the second position of the tape cassette. The tape cassette is movable between an operating position that prevents movement of the tape cassette from the first position to a non-operation position that does not prevent movement of the tape cassette from the first position to the second position, and the tape cassette is engaged with the second engaging portion. and a second blocking means having a second blocking part that moves from the operating position to the non-operating position, and when the tape cassette is inserted into the holding means from the cassette insertion opening with the side wall of the tape cassette facing the cassette insertion direction, the tape The first blocking means and the second blocking means are arranged at positions where the cassette engages at most only one of the first engaging portion and the second engaging portion.

The invention as claimed in claim 2 also provides a cassette insertion port into which a standard tape cassette is inserted, a holding means for holding the standard tape cassette inserted from the cassette insertion port, and a holding means for inserting the standard tape cassette into the holding means. In this case, it has a first engaging portion that engages near the side wall of the supply tape wrapping body on the outer peripheral surface of the standard tape cassette, and is located on the take-up tape wrapping body side and is attached to the holding means of the standard tape cassette. movement from a first position for insertion to a second position for complete attachment to the holding means; and a non-operational position for preventing movement of the standard tape cassette from the first position to the second position. a first blocking means that is capable of moving the standard tape cassette from the operating position to the non-operating position when the standard tape cassette is engaged with the first engagement part; When inserted into the holding means, the standard tape cassette has a second engaging portion that engages near the side wall on the take-up tape wrapping body side on the outer peripheral surface of the standard tape cassette, and is located on the supply tape wrapping body side. movable between an operating position that prevents movement of the cassette from the first position to the second position and an inoperative position that does not prevent movement of the standard tape cassette from the first position to the second position;
a second blocking means having a second blocking part that moves from the operating position to the non-operating position when the standard tape cassette engages with the engaging part of the tape cassette, the compact tape cassette being smaller than the standard tape cassette. When the small tape cassette is inserted into the holding means through the cassette insertion opening, the first
A blocking means and a second blocking means are provided.

Effect of the Invention The present invention has the structure of claim 1, so that when the tape cassette is properly inserted, the tape cassette is engaged with both the first engaging part and the second engaging part, and the tape cassette is held in the holding means. The first blocking part and the second blocking part move to the retracted position so as not to interfere with the complete mounting operation.On the other hand, when inserted vertically, the first blocking part
The tape cassette can be blocked by at least one of the blocking part and the second blocking part.

Moreover, by adopting the structure of claim 2, when the standard type tape cassette is inserted normally, the standard type tape cassette is engaged with both the first engaging part and the second engaging part, and the standard type tape cassette is held by the holding means. The first blocking part and the second blocking part move to the retracted position so as not to interfere with the operation of completely loading the small tape cassette. Small tape cassettes can be blocked on at least one side.

Embodiment Hereinafter, a recording/reproducing apparatus according to an embodiment of the first invention will be described with reference to the drawings.

Fig. 1 is a plan view of a recording/reproducing device in an embodiment of the first invention, Fig. 2 is a left side view of Fig. 1, Fig. 3 is a sectional view taken along line A-A in Fig. 1, and Fig. Figure 6 is an arrow view in the X direction of Figure 1 showing the operation of the erroneous insertion prevention device when a tape cassette is inserted, and Figure 7 shows the relationship between the tape cassette and the erroneous insertion prevention device when the tape cassette is inserted vertically. FIG. 8 is a plan view showing the positional relationship, and a cross-sectional view of a main part showing the positional relationship between the tape cassette and the erroneous insertion prevention device when the tape cassette is inserted vertically.

As shown in FIGS. 1 and 2, a device main body 110 is composed of a chassis 101 and a front panel 102 on the front thereof. The front panel 102 is provided with a cassette insertion port 140 through which the tape cassette 1 can be inserted and ejected.

Side plates 150 are arranged approximately vertically on the left and right sides of the chassis 101. Holding means 2 movably between 151 and 151
02 is provided. Guide portions 203 and 204 are formed on both left and right side surfaces of the holding means 202, and the side plate 1
It is slidably engaged with a guide groove 153 provided in 50, 151.

Further, a supply side cassette guide part 202 al and a winding side force set guide part 202 b are provided on the left and right inner surfaces of the holding means 202, respectively, and guide the tape cassette 1 inserted from the cassette insertion opening 140. There is.

A mounting lever 207 is rotatably provided around the boss portions 205 and 206 of the holding means 202.

The mounting lever 207 is connected via a locking part 207a that engages with a protrusion 208a of a top plate 208 installed between the side plates 150 and 151, an actuation part 207b that engages with the tape cassette 1, and a tension spring 209. It is composed of a biased portion 207c that engages with the holding means 202, and is biased counterclockwise in FIG. 2 by a tension spring 209.

Now, when an external force is applied to the operating portion 207b of the mounting lever 207 in the direction of the arrow, the mounting lever 207 rotates clockwise around the boss portion 205 against the biasing force of the tension spring 209.
This allows the top plate 208 to be released from its engagement with the protrusion 208a. Therefore, the holding means 202 is guided by the guide groove 153 of the side plate 150 so that it can slide. On the other hand, if no external force is applied to the actuating portion 207b of the mounting lever 207 in the direction indicated by the arrow, and an external force is applied to the holding means 202 in the direction indicated by the arrow, the mounting lever 207 will have a locking portion 207a that extends beyond the protrusion of the top plate 208. It is locked by the portion 208a.

Therefore, the holding means 202 cannot slide along the guide groove 153 of the side plate 150.

On the other hand, a first stopper 210 and a second stopper 220 are provided to be rotatable around a rotation shaft 212 supported by a bearing portion 208b of the top plate 208 so as not to interfere with each other. The first stopper 210
The regulating portion 211 is a bent portion 208 of the top plate 208.
c, and the bent portion 20 of the top plate 208
8c regulates the rotation range so that the first stopper 210 does not rotate clockwise beyond the position shown in FIG. 2, and also determines the height of the first stopper 210. Similarly, the rotation range of the second stopper 220 is restricted so that the second restriction portion 221 does not rotate clockwise beyond the position shown in FIG. 2 by contacting the bent portion 208b of the top plate 208. Along with being there,
The height of the second stopper 220 is determined. Further, as shown in FIGS. 1 and 2, the first stopper 210 is provided with a tape cassette 1 on the side of the supply tape winding body 6.
A front roller 230 and a rear roller 240 are provided so as to come into contact with the front surface 6a, and are rotatably supported around the front boss 210a and rear boss 210b of the first stopper 210, respectively. Along with this, a first blocking portion 215 is provided so as to come into contact with the front surface 7a of the tape cassette l on the side of the take-up tape wrapping body 7. Here, the first blocking portion 215 is located on the second direction side of the front roller 230, and
The lower portion 215a does not protrude beyond the outer periphery of the rear roller 240 toward the side shown in FIG. Also, a front roller 230 and a rear roller 240 are provided on the first stopper 210 and the second stopper 220 so as to contact the front surface 7a of the tape cassette 1 on the side of the tape winding body 7, respectively. Front boss 220a of stopper 220
and is rotatably supported around the rear boss 220b. At the same time, a second blocking portion 225 is provided so as to come into contact with the front surface 6a of the tape cassette 1 on the side of the supply tape winding body 6. Here, the second blocking part 225 is the front roller 23
0, and its lower part 22
5a does not protrude beyond the outer periphery of the rear roller 240 toward the side shown in FIG. Therefore, tape cassette 1
Even if a rotational moment is applied to the first blocking part 215 and the second blocking part 225 in the counterclockwise direction in FIG. 3, the first stopper 210 and the second stopper 220 are Since the rotation is restricted, it cannot be rotated counterclockwise, that is, the tape cassette 1. First stopper 210 and second stopper 2
20 is locked.

Furthermore, as shown in FIGS. 1 and 7, the shortest distance between the front rollers 230 of each of the first stopper 210 and the second stopper 220 is I+, and
The shortest distance between the blocking part 225 is 12, the shortest distance between the supply side cassette guide part 202a and the first blocking part 215 is 13,
Winding side force setting guide section 202b and second blocking section 225
Assuming that the shortest distance between the tape cassette 1 and the tape cassette 1 is 14, the dimension H in the front direction and the dimension W in the side direction of the tape cassette 1 are set as follows.

W<II≦H 12×W 13<W 14×W In other words, the tape cassette 1 inserted vertically from the cassette insertion slot 140 is attached to at most one front roller 230 on the first stopper 210 side or the second stopper 220 side. In addition, insertion is prevented by at least one of the first blocking part 215 and the second blocking part 225, while the tape cassette inserted correctly from the cassette insertion opening 140) 1 is the front roller 230 on both sides of the first stopper 2108 or the second stopper 220.
It is designed to engage with.

As shown in FIGS. 4 to 5, the first stopper 21
0 and the front bosses 210a, 22 of the second stopper 220
Contact portion 210 between 0a and rear bosses 210b and 22ob
c and 220c are tapered rods, so in the case of normal insertion, the first stopper 210 will be moved back to the front roller 230.
．． The contact portion 210c + the rear roller 240 receives a clockwise rotational moment from the front surface 6a of the tape cassette 1 on the supply tape wrapping body 6 side in this order, and can be retracted so as not to prevent insertion of the tape cassette 1, as shown in FIG. It looks like this. Similar to the first stopper 210, the second stopper 220 also has a front roller 230. Contact portion 220c+
The rear roller 240 in turn receives a clockwise rotation moment from the front surface 7a of the tape cassette 1 on the side of the tape winding body 7, and can be retracted without blocking the insertion of the tape cassette 1, as shown in FIG. ing.

Thus, the first blocking means is the first stopper 210
．． Front roller 230. By the rear roller 240, also,
The second blocking means is the second stop, za 220. Front roller 230. It is composed of a rear roller 240&.

The operation of the recording/reproducing apparatus No. 1 constructed as described above will be explained below with reference to FIGS. 1 to 8.

First, we will discuss some problems when inserting the tape cassette 1 in the correct direction.

Tape cassette 1 inserted from cassette insertion slot 140
is inserted into the holding means 202 while being guided by the supply side cassette guide part 202a and the winding side force set guide part 202b of the holding means 202. Insert the cassette further in the insertion direction. First stopper 210 and second stopper-2
The shortest distance between each of the 20 front rollers 230: 1. is set smaller than the dimension H of the tape cassette 1 in the front direction (therefore, as shown in FIGS. The front surface 7a of the tape cassette 1 on the side of the package 7 is connected to the first stopper 210 side and the second stopper 22, respectively.
It engages with the front roller 230 on the 0 side.

The first stopper 210 receives a clockwise rotational moment around the rotation axis in FIG. At almost the same time, the second stopper 220 also moves to the first stopper 2 via the front roller 230.
Rotate in the same direction as 10. When the tape cassette 1 is further inserted in the cassette insertion direction, the first stopper 210 and the second stopper 220, as shown in FIG.
The respective contact portions 210c and 220c receive a clockwise rotational moment from the front surface 6a+7a of the tape cassette 1, and further rotate clockwise.

After that, the front surface 6a of the tape cassette 1 is applied to the rear roller 240 of the first stopper 210 and the second stopper 220.
, 7a, the first stopper 210
The second stopper 220 is further rotated clockwise via the rear roller 240. Therefore, as shown in FIG. 6, the first stopper 210 and the second stopper 220
is moved to a retracted position that does not prevent insertion of the tape cassette 1, and the tape cassette 1 can be inserted into the holding means 202.

Here, since the first blocking part 215 and the second blocking part 225 are provided at the positions described above, they do not interfere with the tape cassette 1 to be inserted, and do not interfere with the series of operations described above. .

After that, when the tape cassette 1 is further inserted into the holding means 202, the operating portion 207b of the mounting lever 207 and the tape cassette 1 come into contact with each other, and the mounting lever 207 resists the biasing force of the tension spring 209 and moves to the second position. It rotates clockwise around the boss portion 205 in the figure, thereby releasing the engagement with the protruding portion 208a of the top plate 208. Therefore, the tape cassette 1 is guided by the guide groove 153 of the side plate 150 and can slide integrally with the holding means 202.

Next, a case will be described in which the tape cassette 1 is inserted vertically.

The tape cassette 1 inserted vertically in the cassette insertion direction from the position shown in FIG.
It is inserted into 2. Furthermore, when the cassette is inserted in the insertion direction, it comes into contact with the front roller 230 on the first stopper 210 side. The first stopper 210 is connected to the tape cassette 1
The rotating wheel 212 in FIG. 4 receives a clockwise rotational moment from the side surface 1e via the front roller 230, and rotates clockwise.

Thereafter, when the tape cassette 1 is inserted in the cassette insertion direction, the first stopper 210 is given a clockwise rotational moment from the side surface 1e of the tape cassette 1 via the rear roller 240.

However, since the shortest distance 1+ between the front rollers 230 of each of the first stopper 210 and the second stopper 220 is set larger than the dimension W in the side direction of the tape cassette 1, the first stopper 210 During the above operation, no external force is applied to the front roller 230 of the second stopper 220. That is, it is in the initial position shown in FIG.

Furthermore, the shortest distance 13 between the supply side cassette guide section 202a and the first blocking section 215 is set smaller than the dimension W of the tape cassette 1 in the side direction.

Therefore, the front surface of the tape cassette 1 comes into contact with the second blocking portion 225 at approximately the same time that the first stopper 210 starts rotating clockwise in FIG. 5 via the rear roller 240. The second stock, f-220, receives a rotational moment in the counterclockwise direction in FIG. Stopper 220 is locked. Therefore, the tape cassette 1
Insertion will be blocked at step 5.

The tape cassette 1 inserted vertically in the insertion direction from the position shown in FIG.
is inserted into the holding means 202 while being guided by the winding side force setting guide portion 202b. Furthermore, when the cassette is inserted in the insertion direction, the front roller 2 on the second stock 220 side
30. The second stopper 220 is connected to the fourth stopper 220 via the front roller 230 from the side surface 1e of the tape cassette 1.
Receives a clockwise rotational moment around the rotation axis 212 in the figure,
Rotate clockwise.

Thereafter, when the tape cassette 1 is inserted in the cassette-separate insertion direction, a clockwise rotational moment is applied to the second stopper 220 from the side surface 1e of the tape cassette 1 via the rear roller 240.

However, since the shortest distance 11 between the front rollers 230 of each of the first stopper 210 and the second stopper 220 is set larger than the dimension W in the side direction of the tape cassette/gutter 1, the second stopper During the above-mentioned operation of 220, the front roller 230 of 210 is
is not given any external force. That is, it is in the initial position shown in FIG. Moreover, the winding side force setting guide section 2
The shortest distance 1□ between the tape cassette 1 and the first blocking portion 215 is set to be smaller than the dimension W of the tape cassette 1 in the side direction. Therefore, the second stopper 220
At approximately the same time as starting the clockwise rotation operation in FIG.
comes into contact with. The first stopper 210 receives a counterclockwise rotational moment in FIG.
Since the rotation is restricted by the protrusion 208a, the first stopper 210 does not rotate counterclockwise, that is, the first stopper 210 is locked. Therefore, the tape cassette 1 is prevented from being inserted by the first blocking portion 215.

In addition, the first stopper 210 and the second stopper 22
Since the shortest distance 1+ between the front rollers 230 of each of the tape cassettes 1 is set larger than the dimension W of the tape cassette 1 in the lateral direction, The inserted tape cassette 1 does not engage with both the front rollers 230 of the first stopper 210 and the second stopper 220. Moreover, since the shortest distance 12 between the first blocking part 215 and the second blocking part 225 is set smaller than the dimension W in the side direction of the tape cassette 1, the first blocking part 215 and the second blocking part 225 Section 225
The tape cassette 1 will be blocked by one or both of the two.

Therefore, even if the tape cassette is vertically inserted from any position in the cassette insertion slot, the insertion can be prevented as described above.

As described above, according to this embodiment, when the tape cassette is inserted into the holding means, the tape cassette has the first engaging portion that engages near the side wall on the supply tape winding body side on the outer peripheral surface of the tape cassette, and An operating position located on the tape winding body side and preventing the tape cassette from moving from a first position where the tape cassette is inserted into the holding means to a second position where the tape cassette is completely attached to the holding means, and a second position of the tape cassette from the first position. A first blocking part that is movable to a non-operating position and a non-operating position that does not impede the movement of the tape cassette to the first engaging part, and has a first blocking part that moves from the operating position to the non-operating position when the tape cassette is engaged with the first engaging part. and a second engaging portion that engages in the vicinity of the side wall on the take-up tape wrapping body side on the outer peripheral surface of the tape cassette when the tape cassette is inserted into the holding device, and the second engaging portion is located on the supply tape wrapping body side. and is movable between an operating position that prevents the tape cassette from moving from the first position to the second position and a non-operating position that does not prevent the tape cassette from moving from the first position to the second position, and a second blocking means having a second blocking part that moves from the operating position to the non-operating position when the tape cassette is engaged with the second engaging part;
When the tape cassette is inserted into the holding means from the cassette insertion opening with the side wall facing the cassette insertion direction, the tape cassette is placed in a position where it engages only one of the first engaging part and the second engaging part. By arranging the first blocking means and the second blocking means, a cassette of a specific shape (for example, VH
It is highly versatile because it can prevent vertical insertion of not only tape cassettes (standard 8) but also tape cassettes of any shape. Furthermore, since there is no need to provide a protrusion approximately in the center of the holding means, the degree of freedom in designing the holding means is increased, the holding means is simplified, and material costs are reduced. Furthermore, since it is possible to operate reliably with an extremely simple mechanism, cost reduction and high reliability can be achieved.

At the same time, since it is possible to determine whether the tape cassette has been erroneously inserted at an extremely early stage after it has been inserted into the device, it is easy to operate.

Note that in this embodiment, the first stopper 210 and the second stopper 210
Although the first stopper 220 is provided with a front roller and a rear roller, the first stopper 21 is not limited to this.
Similar effects can be obtained by appropriately setting the shapes of the portions of the stoppers 0 and 220 that come into contact with the tape cassette.

Further, in this embodiment, the front roller and the rear roller are engaged with the front surface of the tape cassette, but the engagement position is not limited to this, and it is also possible to engage with the side surface of the tape cassette. .

Next, an embodiment of the second invention will be described with reference to the drawings.

FIG. 9 is a plan view of a recording/reproducing apparatus in an embodiment of the second invention, FIG. 10 is a left side view of FIG. 9, and FIG.
AA sectional view in the figure, Figures 12 to 14 are arrow views in the X direction of Figure 9 showing the operation of the erroneous insertion prevention device accompanying the insertion of a standard tape cassette, and Figure 15 is a small tape force Setsu・
Figure 16 is a plan view showing the positional relationship between the small tape cassette and the erroneous insertion prevention device when a small tape cassette is inserted, and Fig. 16 shows the position of the small tape cassette and the erroneous insertion prevention device when the small tape cassette is pushed vertically and enlarged. FIG. 3 is a cross-sectional view of main parts showing the relationship.

As shown in FIGS. 9 and 10, a device main body 110 is composed of a chassis 101 and a front panel 102 on the front thereof. The front panel 102 has a cassette insertion slot 140.
is provided, and the standard tape cassette 10 can eject inserts.

Side plates 150 are arranged approximately vertically on the left and right sides of the chassis 101. Holding means 3 movably between 151 and 151
02 is provided. Guide portions 303 and 304 are formed on both left and right side surfaces of the holding means 302, and the side plate 1
50. It is slidably engaged with a guide groove 153 provided in 151.

Furthermore, a supply side cassette guide section 302 at and a winding side force set guide section 302b are provided on the left and right inner surfaces of the holding means 302, respectively, so as to guide the standard tape cassette 10 inserted from the cassette insertion port 140. It has become.

A mounting lever 307 is rotatably provided around the boss portions 305 and 308 of the holding means 302.

The mounting lever 307 has a locking part 307a that engages with a protrusion 308a of a top plate 308 installed between the side plates 150 and 151, and a standard tape cassette 1.
0, and the tension spring 30.
A biased portion 307c that engages with the holding means 302 via 9
The tension spring 309
It is biased counterclockwise in the figure.

Now, when an external force is applied to the operating portion 307b of the mounting lever 307 in the direction indicated by the arrow, the mounting lever 307 rotates clockwise around the boss portion 305 against the biasing force of the upper tension spring 309.
This allows the top plate 308 to be disengaged from the protrusion 308a. Therefore, the holding means 302 is guided by the guide groove 153 of the side plate 150 so that it can slide. On the other hand, if no external force is applied to the actuating portion 307b of the mounting lever 307 in the direction indicated by the arrow, and an external force is applied to the holding means 302 in the direction indicated by the arrow, the mounting lever 307 will have a locking portion 307a that extends beyond the protrusion of the top plate 308. It is locked by the portion 308a.

Therefore, the holding means 302 cannot slide along the guide groove 153 of the side plate 150.

On the other hand, a first stopper 310 and a second stopper 320 are provided to be rotatable around a rotation shaft 312 supported by a bearing portion 308b of the top plate 308 so as not to interfere with each other. The first stopper 310
The regulating portion 311 is a bent portion 308 of the top plate 308.
c, and the bent portion 30 of the top plate 308
8c regulates the rotation range so that the first stopper 310 does not rotate clockwise beyond the position shown in FIG. 10, and also determines the height of the first stopper 310. Similarly, the rotation range of the second stopper 320 is restricted so that the second stopper 321 does not rotate clockwise beyond the position shown in FIG. At the same time, the height of the second stopper 320 is determined.

In addition, as shown in FIGS. 9 and 10, the first stopper 310 is provided with a front roller 3 so as to come into contact with the front surface lea of the standard tape force set 10 on the side of the supply tape wrapping body 16.
30 and a rear roller 340, which are rotatably supported around the front boss 310a and rear boss 310b of the first stopper 310, respectively. Along with this, the front surface 17 of the standard tape cassette 10 on the side of the take-up tape winding body 17
A first blocking portion 316 is provided so as to come into contact with a.

Here, the first blocking portion 315 is located on the side in the direction shown in FIG. As shown in FIG. 11, the height is set so that it can come into contact with the small tape cassette 20. Similarly to the first stopper 310, the second stopper 320 is also provided with a front roller 330 and a rear roller 340 so as to come into contact with the front surface 17a of the standard tape cassette 10 on the F side of the tape winding body. 2. Front boss 320 of stopper 320
It is rotatably supported around the rear boss 320b and the rear boss 320b. At the same time, a second blocking portion 325 is provided so as to come into contact with the front surface 16a of the standard tape cassette 10 on the supply tape wrapping body 16 side. Here, the second blocking part 325
is located closer to the direction shown in FIG. 10 than the front roller 330, and its lower part 325a does not protrude beyond the outer periphery of the rear roller 340 toward the direction shown in FIG. The height is set so that it can come into contact with 20. Therefore, even if the small tape cassette 20 applies a rotational moment in the counterclockwise direction in FIG. Second
Since the rotation of the stopper 320 of the small tape cassette 20° is restricted, it does not rotate counterclockwise.
The stopper 310 and the second stopper 320 are locked.

Further, as shown in FIGS. 9 and 15, the shortest distance between the front rollers 330 of each of the first stopper 310 and the second stopper 320 is 11, and the distance between the first blocking part 315 and the second blocking part is 11. 325 is 12, and the shortest distance between the supply side cassette guide section 302a and the first blocking section 315 is la.
, the winding side force setting guide part 302b and the second blocking part 32
Assuming that the shortest distance from 5 to 5 is 14, the front dimension H9 of the standard tape cassette 10 and the front dimension Ha and side dimension Wll of the small tape cassette 20 are:
It is set as follows. (However, > Wll < Ha.) Ha < 1 + < H 1 e < Wal s < W s 1 a < W s In other words, the IJX type tape cassette 20 inserted from the cassette insertion slot 140 is on the first stopper 310 side. Or at most one front roller 3 on the second stopper 320 side.
30, and is prevented from being inserted by at least one of the first blocking part 315 and the second blocking part 325. The mold tape cassette 10 is adapted to be held by front rollers 330 on both sides of the first stopper 310 or the second stopper 320.

As shown in FIGS. 12 to 13, the front boss 310a of the first stopper 310 and the second stopper 320,
Contact portion 3 between 320a and rear bosses 310b and 320b
10 c and 320 c have a tapered shape, so in the case of normal insertion, the first stopper 310 is
Front roller 330. Contact portion 310 C+ Rear roller 34
0, the standard tape cassette 10 on the supply tape winding body 16 side receives a clockwise rotational moment from the front surface IE3a, and as shown in FIG. It has become.

Similar to the first stopper 310, the second stopper 320
Front roller 330. Contact part 320c, rear roller 3
40, the standard tape cassette 10 receives a clockwise rotational moment from the front surface 17a of the standard tape winding body 17, as shown in FIG.
can be evacuated so as not to prevent the insertion of the

Thus, the first blocking means is the first stopper 310
．． Front roller 330. Also, by the rear roller 340,
The second blocking means includes a second stopper 320 and a front roller 3.
30. It is composed of a rear roller 340.

The operation of the recording/reproducing apparatus configured as described above will be explained below with reference to FIGS. 9 to 16.

First, the case of normal insertion of the standard tape cassette 10 will be described.

The standard tape cassette 10 inserted through the cassette insertion port 140 is inserted into the supply side cassette guide section 3 of the holding means 302.
02a and the winding side force setting guide part 302b, and is inserted into the holding means 302. Insert the cassette further in the insertion direction. Since the shortest distance 11 between the front rollers 330 of each of the first stopper 310 and the second stopper 320 is set smaller than the dimension H in the front direction of the standard tape cassette 10, as shown in FIG. Standard tape cassette 10 front l on the tape winding body 16 side supplied to
ea and the front surface 17a of the standard tape cassette 10 on the side of the take-up tape winding body 17 are respectively connected to the first stopper 31.
It engages with the front roller 330 on the 0 side and the second stopper 320 side. The first stopper 310 is inserted from the front lea of the standard tape cassette 10 on the supply tape wrapping body 16 side.
It receives a clockwise rotational moment around the rotation axis in FIG. 12 via the front roller 330 and rotates clockwise, and almost simultaneously with this rotation, the second stopper 320 also
The first stopper 310 rotates in the same direction as the first stopper 310 .

When the standard tape cassette 10 is further inserted in the cassette insertion direction, as shown in FIG. 16a and 17a, and further rotates clockwise. After this, the rear roller 3 of the first stopper 310 and the second stopper 320
When the front surface 8a+7a of the standard tape cassette 1o comes into contact with 40, the first stopper 310 and the second stopper 320 further rotate clockwise via the rear roller 340.

Therefore, as shown in FIG.
and the second stopper 320 is a standard tape cassette 1.
The tape cassette 10 is moved to a retracted position that does not prevent the insertion of tape cassette 10, and insertion of the standard tape cassette 10 into the holding means 302 becomes possible.

Here, since the first blocking part 315 and the second blocking part 325 are provided at the positions described above, they do not interfere with the standard tape cassette 10 to be inserted, and do not interfere with the series of operations described above. There isn't.

After this, the standard tape cassette 10 is further inserted into the holding means 3.
02, the operating part 30 of the mounting lever 307
7b comes into contact with the standard tape cassette 10, and the mounting lever 307 rotates clockwise around the boss portion in FIG. 10 against the biasing force of the tension spring 309. Release the bond. Therefore, the standard tape cassette 10 is guided by the guide groove 153 of the side plate 150 and can slide integrally with the holding means 302.

Next, the case where the small tape cassette 20 is inserted will be described. In addition, as mentioned above, the small tape force set) 20
Only the case where the small tape cassette 20 is inserted vertically will be described assuming that the side dimension Ws is smaller than the front dimension Ha.

The small tape cassette 20 inserted vertically in the cassette insertion direction from the position shown in FIG.
The cassette is inserted into the holding means 302 while being guided by the supply side cassette guide section 302a of No. 02. Furthermore, when the cassette is inserted in the insertion direction, the front roller 3 on the first stopper 310 side
30.

The first stopper 310 receives a clockwise rotational moment around the rotating shaft 312 in FIG. 12 from the side surface 20e of the small tape cassette 20 via the front roller 330, and rotates clockwise.

Thereafter, when the No. 1 type tape cassette 20 is inserted in the cassette insertion direction, a clockwise rotational moment is applied to the first stopper 310 from the side surface 20e of the small tape cassette 20 via the rear roller 340.

However, since the shortest distance 11 between the front rollers 330 of each of the first stopper 310 and the second stopper 320 is set larger than the dimension W in the side direction of the small tape cassette 20, the first stopper 310
During the above operation, the front roller 33 of the second stopper 320
No external force is applied to 0. That is, it is in the initial position shown in FIG. Furthermore, the shortest distance 13 between the supply side cassette guide section 302a and the first blocking section 315 is set smaller than the dimension W of the small tape cassette 20 in the side direction. Therefore, at approximately the same time that the first stopper 310 starts rotating clockwise in FIG. Second stopper 320
receives a rotation moment in the counterclockwise direction in FIG. 16, but since the rotation is restricted by the protrusion 308a of the top plate 308, it does not rotate counterclockwise, that is, the second stopper 320 is locked. Therefore, the insertion of the small tape cassette 20 is prevented by the second blocking portion 325.

The small tape cassette 20 inserted vertically in the cassette insertion direction from the position shown in FIG.
It is inserted into the holding means 302 while being guided by the winding side force setting guide section 302b of No. 02.

Furthermore, when the cassette is inserted in the insertion direction, it comes into contact with the front roller 330 on the second stopper 320 side.

The second stopper 320 receives a clockwise rotation moment around the rotation axis in FIG. 12 from the side surface 20e of the small tape cassette 20 via the front roller 330, and rotates clockwise.

Thereafter, when the small tape cassette 20 is inserted in the cassette insertion direction, a clockwise rotational moment is applied to the second stopper 320 from the side surface 20e of the small tape cassette 20 via the rear roller 340.

However, since the shortest distance 11 between the front rollers 330 of each of the first stopper 310 and the second stopper 320 is set larger than the dimension W@ in the side direction of the small tape cassette 20, the second stopper 320
During the above operation, the front roller 33 of the first stopper 310
No external force is applied to 0. That is, it is in the initial position shown in FIG. Moreover, the shortest distance 14 between the winding side force setting guide section 302b and the first blocking section 315 is set smaller than the dimension We of the small tape cassette 20 in the side direction. Therefore, the front surface of the small tape cassette 20 comes into contact with the first blocking part 315 at approximately the same time that the second stopper 320 starts rotating clockwise in FIG. 13 via the rear roller 340. first stopper 3
10 receives a rotation moment in the counterclockwise direction in FIG.
i: Since it is regulated, it does not rotate counterclockwise, that is, the first stopper 310 is locked. Therefore, the insertion of the small tape cassette 20 is prevented by the first blocking portion 315.

In addition, the first stopper 310 and the second stopper 32
Since the shortest distance 11 between the front rollers 330 of each of the small tape cassettes 20 is set larger than the side dimension Wll of the small tape cassette 20, the cassette is inserted vertically from the position shown in FIG. 15 in the cassette insertion direction. Small tape cassette 20
The first stopper 31C1 and the second stopper 32
0 (7) It does not engage with both of the front o-ra 330. Moreover, the first blocking section 315 and the second blocking section 325
Since the shortest distance 12 is set smaller than the lateral dimension Ws of the small tape cassette 20, the small tape cassette 20 is blocked by one or both of the first blocking part 315 and the second blocking part 325. It will be done.

As described above, according to this embodiment, when the standard tape cassette is inserted into the holding means, the first engaging portion is provided which engages with the side wall of the supply tape wrapping body on the outer peripheral surface of the standard tape cassette. Both are located on the side of the take-up tape winding body.
and an operating position that prevents the standard tape cassette from moving from a first position where it is inserted into the holding means to a second position where it is completely attached to the holding means, and an operation that moves the standard tape cassette from the first position to the second position. a first blocking portion movable from the operative position to a non-operative position without interfering with the operative position; and a second engaging portion that engages near the side wall on the take-up tape wrapping body side on the outer circumferential surface of the standard tape cassette when the standard tape cassette is inserted into the holding means, and a second engaging portion that engages with the side wall on the take-up tape wrapping body side on the outer peripheral surface of the standard tape cassette. and from the first position to the second position of the standard tape cassette.
The standard tape cassette is movable between an operating position that prevents movement of the standard tape cassette from the first position to a non-operation position that does not prevent movement of the standard tape cassette from the first position to the second position, and the standard tape cassette is movable to the second engagement portion. a second blocking means having a second blocking part that moves from the operating position to the non-operating position when the cassette is engaged; When the small tape cassette is inserted, the first blocking means and the second blocking means are placed in a position where the small tape cassette is blocked by at least one of the first blocking part and the second blocking part.
By installing a prevention means, it is possible to easily deal with the case where tape cassettes of different sizes are inserted incorrectly, and furthermore, it is possible to detect incorrect insertion at the very early stage of inserting a tape cassette into the device. It has excellent operability because it can be lowered.

Furthermore, there is no need for a special detection means for detecting the size of the inserted cassette, and the mechanism can be operated reliably with an extremely simple structure, thereby achieving low cost and high reliability.

In this embodiment, the first stopper 310 and the second stopper 320 are provided with a front roller 330 and a rear roller 340.
However, the present invention is not limited to this, and similar effects can be obtained by appropriately setting the shapes of the portions of the first stopper 310 and the second stopper 320 that contact the tape cassette.

Further, in this embodiment, the front roller 330 and the rear roller 34
0 is engaged with the front surface of the tape cassette, but the locking position is not limited to this, and it may be engaged with the side surface of the tape cassette.

Effects of the Invention As described above, when the tape cassette is inserted into the holding means, the first engaging portion that engages with the vicinity of the side wall of the supply tape wrapping body on the outer peripheral surface of the tape cassette. At the same time, an operation position is located on the side of the take-up tape winding body and prevents the tape cassette from moving from a first position where the tape cassette is inserted into the holding means to a second position where the tape cassette is completely attached to the holding means, and a first position of the tape cassette. A first prevention member that is movable from the operating position to the non-operating position without interfering with the moving operation from the operating position to the second position, and that moves from the operating position to the non-operating position by engaging the tape cassette with the first engaging portion. when the tape cassette is inserted into the holding means;
While growing a second engaging portion that engages near the side wall of the take-up tape winding body on the outer peripheral surface of the tape cassette, the second engaging part is located on the supply tape winding body side and moves from the first position to the second position of the tape cassette. The tape cassette is movable between an operating position that prevents movement of the tape cassette and a non-operation position that does not prevent movement of the tape cassette from the first position to the second position, and the tape cassette is engaged with the second engaging portion. and a second blocking means having a second blocking part that moves from the operating position to the non-operating position according to the method. By arranging the first blocking means and the second blocking means at positions where at most only one of the first engaging portion and the second engaging portion is engaged, the cassette of a specific shape (for example,
It is highly versatile because it can prevent vertical insertion of not only VH8 standard tape cassettes but also tape cassettes of any shape.

Further, since there is no need to provide a protrusion approximately at the center of the holding means, the degree of freedom in designing the holding means is increased, the holding means is simplified, and material costs are reduced. Furthermore, since it is possible to operate reliably with an extremely simple mechanism, cost reduction and high reliability can be achieved.

At the same time, since it is possible to determine whether the tape cassette has been erroneously inserted at an extremely early stage after it has been inserted into the device, it is easy to operate.

Further, in the invention of claim 2 of the present application, when the standard type tape cassette is inserted into the holding means, the first engaging portion is provided which engages with the vicinity of the side wall on the supply tape wrapping body side on the outer peripheral surface of the standard type tape cassette. , an operating position located on the side of the take-up tape winding body and preventing movement of the standard tape cassette from a first position where the tape cassette is inserted into the holding means to a second position where the standard tape cassette is completely attached to the holding means; It is movable from the first position to the non-operating position without interfering with the moving operation from the first position to the second position, and is moved from the operating position to the non-operating position by engaging the standard tape cassette with the first engaging portion. 1st
a first blocking means having a blocking part; and a second engaging part that engages near the side wall of the take-up tape winding body on the outer peripheral surface of the standard tape cassette when the standard tape cassette is inserted into the holding means. and an operating position located on the side of the supply tape winding body and blocking movement of the standard tape cassette from the first position to the second position, and a movement position of the standard tape cassette from the first position to the second position. A second blocking portion that is movable to a non-operating position that does not impede the moving operation and that moves from the operating position to the non-operating position when the standard tape cassette is engaged with the second engaging portion. When a small tape cassette smaller than a standard tape cassette is inserted into the holding means from the cassette insertion slot,
By arranging the first blocking means and the second blocking means at a position where a small tape cassette is blocked by at least one of the first blocking part and the second blocking part, it is possible to prevent tape cassettes of different sizes from being incorrectly inserted. Even if the tape cassette is inserted incorrectly into the device, it can be handled very easily, and since the error can be determined at the very early stage after the tape cassette is inserted into the device, it has excellent operability.

Furthermore, there is no need for any special detection means to detect the size of the cassette to be inserted, and it can operate reliably with an extremely simple mechanism, making it possible to achieve low cost and high reliability. The practical effects are great.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a recording/reproducing device in an embodiment of the first invention, Fig. 2 is a left side view of Fig. 1, Fig. 3 is a sectional view taken along line A-A in Fig. 1, and Fig. Fig. 6 is an arrow view in the X direction of Fig. 1 showing the operation of the erroneous insertion prevention device when a tape cassette is inserted; A left side view showing the positional relationship with the insertion prevention device, FIG. 11 is a sectional view taken along line A-A in FIG. 9,
Figures 12 to 14 are X-direction arrow views of Figure 9 showing the operation of the erroneous insertion prevention device when a standard tape cassette is inserted, and Figure 15 shows the case where a small tape cassette is inserted. Fig. 19 is a left side view of Fig. 17 showing a state in which the tape cassette has been incorrectly inserted into the device, and Fig. 20 is a perspective view showing the positional relationship between the small tape cassette and the erroneous insertion prevention device. The left side view of FIG. 17 shows the device inserted in the direction, and FIG.
FIG. 21 is a view taken along the Z arrow in FIG. 1... Tape cassette, 10... Standard tape cassette, 20... Small tape cassette, 1
01...Chassis, 102...Front panel,
140...Cassette insertion slot, 150. 151
... Side plate, 202.302 ... Holding means, 207°307 ... Mounting lever 208
．． 308...Top plate, 209.309.
...Tension spring, 210.310...First stopper 212°312...Rotation axis, 215,315
...First blocking part, 220,320...Second stopper 225.325...Second blocking part, 2
30.330...front roller, 240,340...
- Rear roller. Skein, torsion - ゛ Obstacle N Ribbon π7-1 & Pavilion brocade 0-5 21O-Kudzu 1 stopper 220-- IR2 (+) 2) -i 7f -2
30--One fishing roller muddy-Samurai roller Fig. 5 14υ Den 1 stow 71'' - Sight 2 stew - Approx. 1-(Material)-Mae O-La Figure 11 310-1st Army 1 Stroke-)l-m--''llA2Φ Stopper 1's Strike 1 Zu-Calculation 2 Stopper 薊O-La Figure 13 $1 stopper vC2 stop) 7f- F1'J Ofu 1 & roller Fig. 14 IJFil stop Izu- Tei 2 stopper about 0-ra + t o-ra Fig. 16 1F! 1's strike soba - '12's strike 9 bar before 0-ra can 0-fu 152 - with jI amount is about totuapurera surface V set with toso even mipu'b+? Panel nt S-tei No. t9 Push-in bar force U Soto push-in direction

Claims (2)

[Claims] (1) A recording and reproducing device that uses a tape cassette that has two tape winding bodies, one for supply and one for winding, inside a case, and a cassette insertion slot into which the tape cassette is inserted; holding means for holding the tape cassette; and a first engaging portion that engages with a side wall on the outer peripheral surface of the tape cassette near the supply tape wrapping body side when the tape cassette is inserted into the holding means. an operating position, both of which are located on the side of the take-up tape winding body and prevent the tape from moving from a first position where the tape cassette is inserted into the holding means to a second position where the tape is completely attached to the holding means; The tape cassette is movable from the operating position to the non-operating position that does not impede the moving operation of the cassette from the first position to the second position, and the tape cassette is engaged with the first engaging portion, so that the tape cassette is moved from the operating position to the non-operating position. a first blocking means having a first blocking part that moves to a non-operating position; and when the tape cassette is inserted into the holding means, a first blocking means that engages near a side wall of the take-up tape winding body on an outer circumferential surface of the tape cassette; an operating position that is located on the side of the supply tape wrapping body and that prevents the tape cassette from moving from the first position to the second position; The tape cassette is movable from the first position to the non-operating position that does not interfere with the moving operation from the first position to the second position, and the tape cassette is engaged with the second engaging portion, so that the tape cassette is moved from the operating position to the non-operating position. a second blocking means having a second blocking part that moves to the position, and when the tape cassette is inserted into the holding means from the cassette insertion opening with the side wall of the tape cassette facing the cassette insertion direction, the tape cassette the first engaging portion and the second engaging portion;
A recording/reproducing apparatus characterized in that the first blocking means and the second blocking means are disposed at positions where the first blocking means and the second blocking means are engaged with only one of the engaging portions. (2) A recording and reproducing device using a standard tape cassette with two tape winding bodies for supply and winding inside the case, comprising: a cassette insertion slot into which the standard tape cassette is inserted; and a cassette insertion slot into which the standard tape cassette is inserted. a holding means for holding the standard type tape cassette inserted through the opening; and a holding means for holding the standard type tape cassette inserted into the holding means; a second position that is located on the side of the take-up tape winding body and that is completely attached to the holding means of the standard tape cassette from a first position that is inserted into the holding means of the standard tape cassette; a non-operating position that does not prevent the standard tape cassette from moving from the first position to the second position; a first blocking means having a first blocking part that moves from the operating position to the non-operating position when the standard tape cassette is engaged; and when the standard tape cassette is inserted into the holding means; a second part that engages with the vicinity of the side wall of the take-up tape wrapping body on the outer peripheral surface of the standard tape cassette;
and an operating position located on the side of the supply tape winding body to prevent the standard tape cassette from moving from the first position to the second position; movable from the first position to a non-operating position that does not interfere with the movement operation from the first position to the second position;
and a second blocking means having a second blocking part that moves from the operating position to the non-operating position when the standard tape cassette is engaged with the second engaging part,
When a small tape cassette smaller than the standard tape cassette is inserted into the holding means from the cassette insertion slot, a position where the small tape cassette is blocked by at least one of the first blocking part and the second blocking part. A recording and reproducing apparatus characterized in that the first blocking means and the second blocking means are arranged in the recording and reproducing apparatus.