JPS5823769B2 - push button tuner - Google Patents

Description

[Detailed description of the invention] The present invention is equipped with a channel selection member that slides in the front and rear directions on a formwork, and two horizontal movement plates that move relatively in the left and right directions, and when the channel selection member is operated to suppress the channel selection member. , a pair of acting parts included in the tuning frequency storage member provided therein are made to act on respective abutting parts provided on the two transversely moving plates, and the amount of displacement of the two transversely moving plates generated thereby is controlled. This relates to a push-button tuner configured to change the variable tuning element correspondingly, and an embodiment thereof will be described in detail with reference to the drawings below. It has working parts 2a and 2b consisting of a pair of shaft pins that are displaced relative to each other in the direction, and a pivot shaft 3.
a storage member 4 rotatably pivoted by a support shaft 5; a restraining piece 6 that is tiltably supported on a support shaft 5 and restrains the storage member 4 when tilting; and a restraining piece 6 that slides together with a push button 7 to In FIG. 1-2, a circular plate piece 41, around which the memory member 4 rotates about the pivot 3, has tips on both sides. Acting part 2
A leg piece 42a having legs a and 2b, respectively.

FIG. 4 shows a case in which the rear ends of the plate 42b are pivoted to 43a and 43b, respectively, and FIG. 4 shows a case in which working parts 2a>2b are integrally provided on both sides of the plate piece 41.

Then, the channel selection member A configured in this manner is installed on the front and rear plates b1. of the formwork B. b2 is slidably supported, and the first and second
In the first embodiment shown in the figure, guide grooves 9a and 9b for slidingly guiding the action portions 2 a y 2 b in the forward direction of the cross arm 1 are formed in the bottom plate b3 and top plate b4 of the husband formwork B. It is formed.

Reference numerals 10a and 10b denote two transversely moving plates arranged perpendicularly to the channel selection member A so as to overlap vertically, and one end of which is pivoted at the middle by a pivot 11 on the formwork bottom plate b3. Pivot shafts 13a, 13 are provided at both ends of the T-shaped reversing mechanism 12.
b, and the two transverse movement plates 10a, 1
At the other end of 0b, there are link pieces 14 a t 14 b, respectively.
One end is the pivot 15a.

15b, and their other ends are commonly pivotally connected to a pivot 16 attached to the formwork bottom plate b3.

That is, these two transversely moving plates 10a and 10b are rotatable parts (T-shaped reversing mechanism 12, link piece 14a) whose both ends are pivotally attached to the formwork B.

14b) in a suspended state and facing the pair of acting portions 2a and 2b, respectively, and on the opposing front edge, a channel selection member A facing one of the acting portions 2a is slid forward. When the inclined abutment part 17a that abuts against the action part 2a and imparts lateral movement to one lateral movement plate 10a also faces the other action part 2b, and when the channel selection member A moves forward. an abutment part 17 having the same slope as the abutment part 17a that abuts the action part 2b and imparts lateral movement to the other lateral motion plate 10b;
b are formed respectively.

The present application particularly focuses on the above-mentioned abutting portions 17a and 17b.
When the action parts 2a and 2b collide with this, the lateral motion plate 1
0a.

It is required that the reversing mechanism 10b be configured to be inclined forward in the figure, for example, so that a lateral force in the direction of pulling the reversing mechanism 12 is generated.

A slide plate 18 supports the variable tuning element 19 and slides and guides it by a guide rod 20, and this slide plate is connected to the end of the reversing mechanism 12 through engagement between a long hole 21 and an engagement shaft 22. There is.

In the above example, the reversing mechanism 12 is formed into a T-shape, and both ends of one piece of the reversing mechanism 12 are pivoted 13a to two transverse movement plates 10a and 10b, respectively.
, 13b, and the case is shown in which the variable tuning element 19 is arranged so that its variable direction is perpendicular to the lateral movement direction of the lateral movement plate, and the other piece of the reversing mechanism 12 is connected to the slide plate 18. , the slide plate 18 is connected to the transverse movement plates 10a, 1
Either one of the lateral movement plates 10a can be provided integrally by extending one of the edges of 0b, or the slide plate 18
10b to 10b may be connected by a connecting piece to match the variable direction of the variable tuning element 19 and the lateral movement direction of the lateral movement plate. In this case, as the reversing mechanism 12, the other piece, that is, the slide plate 18 On the other hand, one in which the piece connected through the engagement between the elongated hole 21 and the engagement shaft 22 is omitted is used.

Thus, the storage member 4 is restrained by the restraining piece 6.

When the push button 7 is pressed against a restoring spring (not shown) from the state in which the push button 7 is pressed against the restoring spring (not shown), one of the operating portions 2a abuts against the opposing abutment portion 17a, and as a result, one of the transverse movement plates 10a moves to the left in the figure. While moving in the direction, the reversing mechanism 12 uses the pivot 11 as a fulcrum.

The other lateral movement plate 10b moves to the right, opposite to the one lateral movement plate 10a, and the abutting portion 17b provided thereon moves in the opposite direction from the one lateral movement plate 10a, as shown in FIG. It collides with the other acting portion 2b facing the other.

When the pair of action parts 2a, 2b collide with the opposing abutment parts 17a, 1γb, respectively, the forward movement of the channel selection member A is blocked, and the amount of displacement of the transverse movement plates IQa, 10b is reduced. The variable tuning element is varied correspondingly to achieve tuning.

And a pair of action parts 2a. 2b collides with the opposing abutting portions 17a and 17b, respectively, and the channel selection state is achieved, as shown in FIG.
Since the lateral force V in the direction of pulling the reversing mechanism 12 is applied to the reversing mechanism 12, there is no risk of the lateral movement plate being deflected by the lateral force, and the lateral movement plate can therefore be made from a thin plate material, making the tuner smaller and lighter. It is effective for

By the way, in the above configuration, when the two lateral movement plates are respectively engaged with the slits provided in the side plates of the formwork to support their both ends so that they can move laterally, it is necessary to When the lateral movement plate moves horizontally, a sliding resistance acts between the side where the slit is formed and the opposite edge), and this sliding resistance is proportional to the suppressing force of the channel selection member. Since polishing to a mirror surface is extremely difficult in terms of machining, the inner surface generally has a rough surface and has a large sliding resistance. It is necessary to make the material thick enough to withstand unconstrained sliding resistance, and it also has the disadvantage that the suppression operation of the channel selection member becomes difficult.According to the present application, however, it is possible to Since it is supported in a suspended state, there is no sliding resistance that acts between the transverse plate and the formwork, and therefore the transverse plate can be made from a thicker, thinner plate, and the selection member can be suppressed. It also has the advantage of being extremely easy to operate.

That is, if the relationship between the acting part and the abutting part is configured so that lateral force is generated on the lateral movement plate in the direction of the reversing mechanism, the lateral movement plate will not be bent by the lateral force acting on it. It is necessary to make the lateral movement plate from a plate material with such mechanical strength and thickness, but when the structure of the present application is used, there is no risk that the lateral movement plate will be deflected due to lateral force, and therefore the lateral movement plate is Since the dynamic material can be made from a thin plate material, it has the advantage that the span adjuster can be made thinner and also effective in reducing weight.

In the above, the pair of link pieces may be omitted and the two lateral movement plates may be slidably supported on the left and right side plates provided in the formwork, but as in the embodiment of the present application, the lateral movement plates When connecting the ends of each to the formwork with a pair of link pieces,
Since the lateral movement plate moves laterally with its both ends supported by the reversing mechanism and the link piece, its lateral movement is smooth and has the advantage that the pressing operation of the push button is easy.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is an overall plan view with some parts omitted, FIG. 2 is a sectional view taken along line I-1 in FIG. 1, and FIG.
The figure shows a state in which the acting part and the abutting part collide, and FIG. 4 is a partial plan view showing another embodiment.゛In the figure, A is the channel selection member, 2a and 2b are the action parts,
4 is a memory member, 10a, lOb are transverse movement plates, 12 is a reversing mechanism, 13a, 13b, 15a, 15b, 16 is a pivot, 1
4a14b is a link piece, B is a formwork, 17a and 17b are abutting parts, and 18 is a slide plate.

Claims (1)

[Claims] 1 A channel selection member slidably mounted on a formwork and a pair of action parts of a memory member provided on the channel selection member are connected via a reversing mechanism so as to abut against each other and move in relative directions. was done 2
It consists of a pair of lateral movement plates and a variable tuning element that varies in accordance with the amount of displacement of the lateral movement plates, and when the pair of acting parts act on the abutting parts of the opposing lateral movement plates, In the push-button tuner configured to generate a lateral force in the direction of pulling the reversing mechanism on the lateral movement plate, both ends of the two lateral movement plates are pivoted to the formwork and rotated. A push-button tuner characterized in that it is supported so as to be movable laterally by a piece that supports the push-button.