JPS6224Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a display device that displays the display direction and operation status of a tape loaded in a tape recorder as the tape is running.

[Conventional technology]

A tape loaded in a tape recorder, regardless of whether it is an open reel type or a cassette tape type, is run in two directions, forward and reverse, by rotation of the supply shaft or take-up shaft of the tape recorder. That is, one is in the running direction of the tape due to the rotation of the take-up shaft during recording, playback, or fast-forwarding operations (hereinafter referred to as the forward direction), and the other is in the tape running direction due to the rotation of the supply shaft during rewinding operations. The forward direction is the running direction of the tape running in the opposite direction (hereinafter referred to as the "reverse direction"), and these two forward and reverse running directions are determined by the arrangement of the supply shaft and the take-up shaft in the tape recorder. Normally, a supply shaft is placed on the left side of the tape recorder, and a take-up shaft is placed on the right side, so that the loaded tape runs to the right in the forward direction and to the left in the reverse direction. are doing.

[Problem that the invention attempts to solve]

By the way, among the tapes loaded into the above-mentioned tape recorder, what is called a cassette tape has its own arrangement of the supply shaft and take-up shaft determined by the standards, and this allows the forward and reverse direction of the cassette tape to be determined. The direction is unified. However, on the other hand, there are two types of tape recorders into which this type of cassette tape is loaded, depending on the position of the head: those with the head located in front of where the cassette tape is loaded, and those with the head located on the side opposite to the cassette tape. There is a type in which the head is located on the opposite side from where the tape is loaded, and in this case, the supply shaft and take-up shaft are arranged completely opposite to each other when viewed from the operator. Therefore, due to this type of difference, even if the same operation, such as a fast forward operation, causes the tape to run in the forward direction, the tape will run in the completely opposite direction from the operator's perspective, causing the operation to be difficult. It was very confusing for some people. In addition, in this type of cassette tape recorder, in addition to the normal table-top type, pocket-type tape recorders are also known, and even the table-top type has various types such as horizontal and vertical types. something is known. In such cases, the cassette tapes are loaded in various states, making it difficult for the operator to judge the running direction of the tapes.

In other words, when operating such a tape recorder, the operator compares and confirms the amount of tape wound on both shafts of the cassette tape, and operates while looking at this. For example, if you start recording even though there is little remaining tape on the supply side, it may not be possible to record completely, or due to the above-mentioned mistake, you may perform a fast forward operation. This is inconvenient for the operator, as the operator may misjudge the direction in which the tape is running and the operator may misjudge the direction in which the tape is running. In conventional tape recorders, in order to check for the above-mentioned operational errors, it is necessary to check the winding status of the cassette tape on the supply side and take-up side, or check the tape counter installed in this type of tape recorder. However, for example, during fast-forwarding or rewinding operations, the tape moves so fast that it is difficult to confirm this.Also, some tapes are small and do not have a tape counter, so it is difficult to check the movement of the tape. Accordingly, there is a desire for a simple device that can more easily display the direction of travel.

In addition, in the above-mentioned cassette tape type tape recorder, the cassette tape is small and it is difficult to check the winding state. Especially in the type that does not have a tape counter, for example, even if you operate the operation button, it is difficult to check the winding state. It is difficult to check when the tape is not running, and it has become necessary to use some kind of display means to easily check the running state of the tape.

[Means for solving problems]

The present invention was made to solve the above-mentioned problems, and includes a rotating body with a spiral motion display section on its circumferential surface and a worm gear integrally formed on the side surface, and a rotating body mounted on the front surface in two directions, forward and reverse. A traveling direction indicating member is provided with a display indicator and has a curved portion on one of the side surfaces sandwiching both sides of the rotating body, so as to swing along with the rotating body by the elastic force of the curved portion. It was configured as follows.

[Effect]

According to the tape running display device of the present invention, the running state of the tape is displayed by the operation display section of the rotating body that rotates as the tape runs, and at the same time, the running direction that swings along with the rotating body is displayed. The running direction of the tape is displayed by the indicator on the display member.

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the drawings.

1 and 2 show an embodiment of the tape running display device according to the present invention, and in these figures, the display device, which is designated as a whole by reference numeral 1, has a bottom portion 2a and both side portions 2b, 2c. The frame 2 has a substantially U-shaped frame 2, and the bottom surface 2a of the frame 2 is fixed to a predetermined location within the main body of a cassette tape type tape recorder by screws or the like. Further, a bearing boss 3 protruding vertically from one end side of the bottom surface 2a of the frame 2 is provided.
are integrally formed, and a worm shaft 5 having a worm gear 4 fixed to its upper end is fitted into the bearing boss 3. A pulley 6 is press-fitted into the lower end of the worm shaft 5 and receives rotation transmission through a belt using the reel shaft of the tape recorder main body as a rotation drive source. It is supported and rotates as a unit. In addition, 7a and 7b are a pair of stoppers,
These are provided protruding from one end of the bottom surface 2a of the frame 2 at a predetermined distance apart, and are for regulating the amount of rotation of the running direction display cover, which will be described later.

Further, a shaft 8 is horizontally suspended between both side surfaces 2b and 2c of the frame 2, and a rotating body is rotatably supported by the shaft 8. This rotating body 9
These are the parts that characterize the present invention, and include a display drum 11 having a spiral operation display section 10 formed on its outer periphery;
A worm gear 12 connected to one end of the display drum 11, and a pair of bosses 1 protruding from one end of the worm gear 12 and the other end of the display drum 11.
3a and 13b. in this case,
The worm gear 12 meshes with the worm gear 4 and rotates the rotating body 9 together with the pulley 6. Further, the operation display section 10 on the display drum 11 is colored or the like to improve its identification.

Further, above the rotating body 9, a travel direction display cover 14 is disposed, which is entirely made of a transparent synthetic resin material. This running direction display cover 14 constitutes a running direction display member that characterizes the present invention together with the rotating body 9.
Consisting of both side parts 14a, 14b and a front part 14c, which are substantially fan-shaped, the both side parts 14a, 14b are
Fitting holes 15a and 15b corresponding to the bosses 13a and 13b of the rotating body 9 are formed in the rotary body 9. By fitting these fitting holes 15a, 15b into the bosses 13a, 13b of the rotating body 9, the running direction display cover 14 is rotatably supported by the bosses 13a, 13b. By the way, the axial length of the running direction display cover 14 is the same as that of the rotating body 9.
The lengths of the display drum 11 and the worm gear 12 are set substantially equal to the lengths of the display drum 11 and the worm gear 12.
4a is formed with a curved portion 14e that curves slightly inward. Thus, the inner surfaces of both side surfaces 14a and 14b of the traveling direction display cover 14 abut against the end surface of the worm gear 12 of the rotating body 9 and the end surface of the display drum 11, respectively, and the elastic force of the curved portion 14e In other words, the traveling direction display cover 14 is connected to the rotating body 9 by a weak frictional force, so that it rotates along with the rotating body 9 in the direction of rotation. It is configured to obtain. Furthermore, one side surface portion 14 of the running direction display cover 14
a has a locking piece 14d extending downward from its base, and a pair of stoppers 7a, 7b protruding from the bottom surface 2a of the frame 2 are positioned on the rotation locus of the tip of this locking piece 14d. There is. Therefore, even if the traveling direction display cover 14 rotates to one side along with the rotating body 9, the rotation is prevented by the engagement between the locking piece 14b and the stoppers 7a, 7b. This allows the running direction display cover 1 to
4 swings and rotates by a predetermined angle within a rotation range regulated by stoppers 7a and 7b.

Moreover, the front part 1 of this running direction display cover 14
4c, a pair of arrows 1 are shown as indicators to indicate the running direction of the tape loaded in the tape recorder main body.
7a and 17b are provided. these arrows 1
Reference numerals 7a and 17b correspond to one end of the front surface portion 14c, that is, a portion corresponding to the worm gear 12, and are provided parallel to each other at a predetermined distance apart from each other in the swinging direction. In this case, the formation positions of these arrows 17a and 17b are related to the range in which the traveling display cover 14 swings, and for example, when the rotating body 9 rotates in the direction of the arrow A in FIG. When the traveling direction display cover 14 similarly rotates in the direction of the arrow A in FIG. Of the arrows 17a and 17b, one of the arrows 17a rotates in the opposite direction to the stopper 7.
The other arrow 17b is set so as to be located on the center line B-B of the frame 2 when stopped at point a. Note that the center line B- of the frame 2
B is a display window 18 formed in the tape recorder body.
(See Figure 3).

Therefore, the running display device 1 constructed as described above was incorporated into a tape recorder main body 21 of a type in which the head is located on the front side where the cassette tape 20 is loaded, as shown in FIG. In this case, it works as follows. In this tape recorder, the supply side of the cassette tape 20 is located on the left side in the figure, and the take-up side is located on the right side, and their forward movement is indicated by arrow E in the figure.

Now, when the operation button of the tape recorder main body 21 is operated to make the cassette tape 20 run in the forward direction, the rotation of the reel shaft inside the main body is transmitted via the belt to the pulley 6 as shown in the arrow in the figure. It is transmitted as rotation in the A direction. In this way, the worm gears 4 and 12 rotate the rotating body 9 in the direction of arrow A in the figure, and the display drum 11
The upper operation display section 10 displays the rotational operation state and the running direction. In addition, as the rotating body 9 rotates, the running direction display cover 14, which is pressed by the elastic force of the curved portion 14e, rotates in the same direction, and is held at a predetermined angle by the locking piece 14d and the stopper 7b. It is stopped in the oscillatingly rotated state, and thereafter maintains that state regardless of the rotation of the rotating body 9. At this time, the arrow 17a on the running direction display cover 14 is aligned with the center line B of the frame 2.
-B, and since this center line B-B coincides with the center line of the display window 18 of the tape recorder main body 21, the arrow 17a can be seen from the display window 18 as shown in FIG. The arrow 17a allows the operator to clearly confirm that the tape running direction is the desired direction.

On the other hand, when the cassette tape 20 is run in the opposite direction, the pulley 6 is rotated in the opposite direction to that described above, which causes the rotating body 9 and the running direction display cover 14 to rotate and rotate, respectively, and the operation thereof. It will be clear that the display unit 10 and the arrow 17b display the running state and the running direction.

Furthermore, when this tape running display device 1 is applied to a type of tape recorder other than the above-described tape recorder shown in FIG. It will be clear that it is easy to match the running direction of the tape.

As explained above, the tape running display device according to the present invention incorporates a running direction indicator and an operation status indicator that accompany the tape running operation, although it is extremely small. When this is done, it can be easily confirmed that the tape is running in the desired state, thereby making it easier to operate the tape recorder by checking for operational errors due to misunderstandings or misperceptions. In particular, even if the rotating body stops along with the tape, the running direction display member maintains the display of the tape running direction according to the previous operation, so it is difficult for the operator to confirm this. Extremely convenient. Furthermore, since the frictional coupling means between the rotating body and the travel direction display member is integrally formed with the display member, it is possible to obtain a travel display device that has a simple overall structure and is inexpensive.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the tape running display device according to the present invention, FIG. 2 is a side view, and FIG.
The figure is a front view of the main parts of a tape recorder for explaining its usage. 1... Tape running display device, 2... Frame,
4...Worm gear, 6...Pulley, 7a, 7b
... Stopper, 8 ... Shaft, 9 ... Rotating body,
10...Operation display section, 12...Worm gear, 1
4... Running direction display cover, 14a, 14b...
Side part, 14c...front part, 14d...locking piece,
14e...Curved portion, 17a, 17b...Arrow (indicator), 18...Display window, 20...Cassette tape, 21...Tape recorder main body.

Claims (1)

[Scope of utility model registration request] A U-shaped frame, a worm shaft that is rotatably mounted on a bearing boss formed integrally with the frame and receives rotation from a tape drive source, and a spiral operation display portion formed on the circumferential surface. At the same time, a rotating body is integrally formed with a worm gear that engages with a worm gear provided on the worm shaft to receive rotational transmission on a side surface thereof, and a front part that is formed of a transparent synthetic resin material and extends above the rotating body. is provided with a pair of indicators indicating the two running directions of the tape, forward and reverse, at positions corresponding to the worm gear, and a curved portion that curves inward is formed on one of the side surfaces sandwiching both sides of the rotating body. The rotating body rotates as the tape travels, and its operation display section displays the running state of the tape, and the elastic force of the curved part causes the rotating body to rotate as the tape travels. 1. A tape running display device, characterized in that a direction indicating member swings along with a rotating body, and displays the running direction of the tape using the indicator.