JPH0422505Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a structure for attaching an operating member to an apparatus, and particularly relates to a structure for attaching an operating member to an apparatus which can have a simple structure.

Conventional technology In electronic equipment (for example, tape recorders),
Multiple models with the same external dimensions but different functions,
For example, a machine capable of recording and reproducing only in the forward direction and a machine capable of recording and reproducing in both directions may be commercialized at the same time. In such cases, it is highly desirable to share parts between different models in order to reduce manufacturing costs.

If we pay particular attention to the playback button on the operation unit, we find that the playback button on a device capable of forward recording and playback is simply pressed and operated, whereas the playback button of a device capable of reciprocating recording and playback is operated by selectively pressing both ends, for example. It is configured to swing when operated. For this reason, the operation parts of conventional tape recorders have different structures for machines that can record and play back and forth, and the parts of the operation part for machines that can record and play back and forth are different from those for machines that can record and play back and forth. The parts of the operating section are each separate parts, and no attempt has been made to standardize the parts of the operating section.

Therefore, in order to solve the above-mentioned problems, the present applicant first proposed Utility Model Application No. 60-89387, ``Structure of Operating Part of Equipment.'' According to this, when used in a tape recorder, for example, by configuring a frame made of synthetic resin constituting the operation part of the device to be selectively attached with an operation button that is operated by pressing and an operation button that is operated by swinging. In this case, the above-mentioned frame can be commonly used in both the forward recording and reproducing machine and the reciprocating recording and reproducing machine.

Problems to be solved by the invention According to the above-mentioned "Device operation part structure", the synthetic resin frame that forms the operation part can be used in common for all models, and this allows the parts of the operation part to be used in common. However, since the elastic parts (support parts 12 and 13) that return the operated operating member (regeneration button 10) to its original state were provided on the device side (front panel 2 side), There is a problem in that the structure of the device at the attachment part of the operating member becomes complicated, and the mold for forming it becomes expensive. In addition, if the elastic part of the operating member becomes fatigued over time due to long-term use, or if the elastic part is accidentally damaged during manufacturing, the entire device must be replaced. However, there were problems in that it was uneconomical and maintenance was troublesome.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a structure for mounting an operating member of a device that solves the above-mentioned problems by providing an elastic portion on the operating member side that functions to return the operated operating member to its original state.

Means and Effects for Solving the Problems In order to solve the above-mentioned problems, in the device operation member mounting structure devised, a horizontal support shaft with a non-circular cross section is provided on the device side, and the operation member is mounted on the device side. A clamping piece that elastically clamps the support shaft is provided in the center of the operating member for operating the switch, and a recess that aligns with the support shaft is provided at the portion where the clamping piece clamps the support shaft, and the support is supported in the recess. This device is characterized in that the operating member is attached to the device by fitting the shaft.

With the above configuration, the clamping piece that has the function of returning the operated operating member to its original state is provided on the operating member side, so if the clamping piece is damaged, only the operating member needs to be replaced. becomes.

Embodiment FIG. 1 shows an embodiment of the device operation member mounting structure (hereinafter simply referred to as the mounting structure) according to the present invention. The mounting structure 1 shown in the figure is generally composed of a support shaft 2 and an operating member 3, and is arranged, for example, on a front panel 5 of a tape recorder 4 as shown in FIG. Generally, the front panel 5 of the tape recorder 4 is provided with various indicators 6 and switches 7, and in order to miniaturize the equipment, switches are made multifunctional so that multiple switch operations can be performed with a single operating member. is planned. The mounting structure 1 according to the present invention is applied to a switch 7a that performs fast forwarding and rewinding using one operating member 3.

Returning to FIG. 1, the front panel 5
A recess 8 is formed at the location where the switch 7a is disposed, and the opposing longitudinal side surfaces 8 of this recess 8
Spacers 9a and 9b that protrude inward are formed at substantially central positions of a and 8b, respectively. Further, a support shaft 2 having a diamond-shaped cross section is integrally suspended between the pair of spacers 9a and 9b. Furthermore, stopper portions 10a, 10b protruding in an inverted V shape are formed on the upper portions of the spacers 9a, 9b. A pair of switches 11a and 11 are provided on the back side of this recess 8.
A printed circuit board 12 provided with b is attached. The pair of switches 11a and 11b are arranged symmetrically with respect to the support shaft 2 when the printed circuit board 12 is attached to a predetermined position on the back side of the recess 8. Note that the recess 8, spacers 9a, 9b, and support shaft 2
can be formed very easily since it is integrally formed when the front panel 5 is formed.

The operating member 3 is integrally molded from a synthetic resin with some elasticity, and has a gripping portion 13 at the center of its back surface 3a, and operating elements 14a and 14b at predetermined positions on both left and right sides. . The clamping portion 13 is provided with a slit 15, which is defined by the pair of left and right clamping pieces 13a, 13b.As described above, since the operating member 3 is made of an elastic material, the clamping pieces 13a, 13b can be elastically deformed in the directions of arrows A ₁ and A ₂ in the figure, respectively. Further, a diamond-shaped fitting recess 15a is formed approximately in the center of the slit 15 to fit and align with the support shaft 2. Further, the operating elements 14a and 14b are connected to a pair of switches 11 provided on the printed circuit board 12 when the operating member 3 is attached to a predetermined position in the recess 8.
The arrangement position is selected so that it faces a and 11b.

FIG. 3 shows a state in which the operating member 3 is attached to the support shaft 2. As shown in the figure, the operating member 3
is attached to the support shaft 2 by clamping the support shaft 2 between a pair of clamping pieces 13a and 13b.
At this time, the shape of the slit 15 and the fitting recess 15a provided in the clamping part 13 is the shape of the pair of clamping pieces 13a, 1.
3b is selected to be able to press and hold the support shaft 2 from both sides with a predetermined pressing force, and the shape of the fitting recess 15a is formed to be the same as the outer shape of the support shaft 2. clamping piece 13
The widths of a and 13b are wide, and the support shaft 2 is held between the holding pieces 13a and 13b over its entire width. Therefore, in the attached state, the fitting recess 15a and the support shaft 2 are aligned and fitted over a wide range, so that the operating member 3 does not wobble. In addition, in this attached state, the operation surface 3b of the operation member 3
is configured to be in a substantially horizontal state (substantially parallel to the front panel 5 and slightly protruding from this surface), and furthermore, the operators 14a and 14b are spaced apart from and opposite to the switches 11a and 11b as described above. configured to be placed.

Next, the state shown in Figure 3 (hereinafter referred to as the waiting state)
Now, the operation of each component when the operating member 3 is pressed in the direction shown by arrow _B1 in FIG. 4 will be explained. When the operating member 3 is pressed in the _B1 direction, the operating member 3 is rotated counterclockwise around the support column 3. Along with this, operator 1
4a and 14b are also displaced, and the operator 14a operates the switch 11a to close it. At this time, the support shaft 2 has a non-circular diamond shape in cross section, and the fitting recess 15a also has a shape that aligns with the support shaft 2 in the standby state, so that the operation member 3 rotates. Due to dynamic displacement, each clamping piece 13a, 13b
are elastically deformed in the directions of arrows A ₁ and A ₂ in the figure, respectively. Subsequently, when the pressing operation in the _B1 direction is released, each clamping piece 13a, 13b applies force in the direction of clamping the support shaft 2 with the elastic restoring force accumulated by the above elastic deformation, so that the operation member 3 is not supported. Clamping piece 13 on shaft 2
The fitting recesses 15a formed in the fitting recesses 15a and 13b are rotated in the alignment direction (returning direction). The rotation is stopped at the position where the support shaft 2 is aligned with the fitting recess 15a, and the standby state is resumed. Also, the arrow in the figure
B Even when the operating member 3 is pressed in _two directions, the rotating direction of the operating member 3 is reversed, but each structure performs the same operation, the clamping pieces 13a and 13b are elastically deformed, and the switch 11b is the operating member. 14b, and when the pressing operation is released, the clamping pieces 13a,
The operating member 3 due to the elastic restoring force accumulated in 13b
is shifted to the waiting state. That is, the reason why the pressed operation member 3 returns to the standby state is due to the elastic restoring force of the clamping pieces 13a and 13b formed on the operation member 3 side. This elastic restoring force utilizes the return force of the misalignment between the non-circular support shaft 2 and the fitting recess 15a provided in the clamping part 13, so that the operation is reliable and can be achieved by operating the operators 14a, 14b. Only a small amount of positional variation is required. Furthermore, the clamping pieces 13a, 1 of the clamping part 13
Since the amount of elastic deformation of No. 3 is also small, fatigue of the material is also small, and thus the reliability of the mounting structure can be improved.

Generally, in a mounting structure configured to return an operated operating member to its original state using the elasticity of the constituent members,
Due to long-term use, structural members that undergo this elastic deformation are likely to suffer fatigue deterioration. In the mounting structure 1 of the present invention, the clamping pieces 13a and 13b that undergo elastic deformation are provided on the operating member 3 side, so even if the fatigue deterioration described above occurs, only the operating member 3 needs to be replaced, and maintenance is reduced. This can be done extremely easily and economically. Further, since the operation member 3 can be attached and removed by simply inserting and removing the operation member 3 into the support shaft 2, assembly and maintenance operations can be easily performed. Furthermore, in the process of assembling the operating member 3, it is the portion that undergoes elastic deformation that is most likely to be accidentally damaged. Therefore, in the conventional configuration in which this part was provided on the front panel, it was necessary to replace the entire front panel due to the above-mentioned damage, but with the mounting structure 1 of the present invention, it is sufficient to replace the operating member 3. Economical efficiency can be improved even if it is difficult.

On the other hand, if we pay attention to the state in which the operating member 3 is attached to the support shaft 2, we can see that the operating member 3 moves in the direction of the arrow X in FIG.
The displacement of the spacers 9a and 9b is regulated by the fitting between the support shaft 2 and the fitting recess 15a, and the displacement in the Y direction in the figure is regulated by the spacers 9a and 9b on both sides 13c and 13 of the clamping part 13.
It is regulated by sliding contact with d. Therefore, the operating member 3 is positioned at a predetermined position within the recess 8 by the support shaft 2 and spacers 9a, 9b.
As a result, even if a plurality of mounting structures 1 according to the present invention are arranged side by side on a device, the operating members 3 will not be misaligned.

Furthermore, if both sides of the operating member 3 are pressed simultaneously (i.e., the operating member 3 in FIG.
Let's consider the case of pressing in the B ₁ and B ₂ directions at the same time). As mentioned above, spacers 9a and 9b are formed at the center of the side surfaces 8a and 8b of the recess 8, and the stoppers 10a and
10b is the rear part 3 of the operating member 3 in the standby state.
It is configured to be slightly spaced apart from a. Therefore, when both sides of the operating member 3 are pressed simultaneously, the stopper portions 10a, 10b abut against the back surface portion 3a and prevent the operating member 3 from moving downward. This makes it possible to reliably prevent an accident in which the switches 11a and 11b are closed at the same time.

Effects of the invention As described above, according to the mounting structure of the present invention, when the operation member is released, the operation member returns to its original position due to the return force caused by the misalignment between the non-circular support shaft and the recess in which the clamping piece is formed. Since it is configured to return, its operation is reliable, and there is little change in the position of the operator due to operation.Furthermore, since the amount of elastic deformation of the clamping piece is small, there is less fatigue of the material, and therefore the reliability of the mounting structure is improved. On the other hand, since the clamping piece that elastically deforms as the operating member is displaced is provided on the operating member side, the structure of the device can be simplified, and the cost of the mold for molding it can be reduced. In addition, clamping pieces are generally more susceptible to fatigue deterioration due to long-term use than other configurations, and are also more likely to be damaged during the assembly process, but even if these occur, only the operating members that have a low unit price need to be replaced. It has features such as being economical and easy to maintain.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of an embodiment of the mounting structure of the present invention, Fig. 2 is a front view showing an example of the mounting structure shown in Fig. 1 applied to a tape recorder, and Fig. 3 is a support for an operating member. FIG. 4 is a side view showing a state in which it is attached to a shaft, and FIG. 4 is a side view showing a state in which the operating member is pressed in FIG. DESCRIPTION OF SYMBOLS 1...Mounting structure, 2...Support shaft, 3...Operation member, 7, 7a...Switch, 8...Recess, 9a,
9b... Spacer, 10a, 10b... Stopper part, 11a, 11b... Switch, 13... Holding part, 13a, 13b... Holding piece, 14a, 14
b...Operator, 15a...Fitting recess.

Claims (1)

[Claims for Utility Model Registration] A horizontal support shaft with a non-circular cross section is provided on the equipment side, and a clamping device that elastically clamps the support shaft in the center of an operating member that operates a switch by operating the horizontal support shaft. and a recess that aligns with the support shaft in a portion where the clamping piece clamps the support shaft, and the operating member is attached to the device by fitting the support shaft into the recess. Operation member mounting structure.