JPS6324769Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a sliding door that can be used, for example, in a cabinet that houses audio equipment, to open and close the opening and closing door provided on the front of the cabinet without using the handle. Regarding equipment.

For example, a cabinet that stores audio equipment can be opened or closed by simply pushing the door toward the inside of the cabinet, without using the hand to open the door that is rotatably provided on the front of the cabinet. structure is known.

FIG. 1 shows a sliding device, a so-called catch mechanism, for driving the opening/closing door as described above. This catch mechanism has a T-shaped piston 11 slidably disposed in a cylinder 12. The T-shaped piston 11 is normally located at the position shown by the solid line in the figure, and when pushed in the direction of the arrow _a1 from this state, the T-shaped piston 11 is locked at the position shown by the broken line in the figure. From this state, if the T-shaped piston 11 is further pushed in the direction of the arrow a ₁ in the figure and then the pushing force is removed, the T-shaped piston 11 will now slide in the direction of the arrow a ₂ in the figure and will be locked in the position shown by the solid line in the figure. .

The catch mechanism that operates in this manner is provided inside the above-mentioned cabinet so that the end of the T-shaped piston 11 in the direction indicated by the arrow a ₂ faces the opening/closing door, and furthermore, the end of the T-shaped piston 11 in the direction indicated by the arrow a ₂ is provided to face the opening/closing door. If the opening and closing door are connected with a magnet etc., all you have to do is push the opening and closing door towards the inside of the cabinet.
You can open and close the door.

FIG. 2 is an exploded perspective view of the catch mechanism shown in FIG.
3 is inserted into the cylinder 12.
A cam portion 14 is provided at the end of the T-shaped piston 11 in the direction of the arrow _a1 in the figure. This cam portion 14 is a pair of groove-shaped cams 14 formed symmetrically around the axis of the T-shaped piston 11 (in the direction of the arrow ( _a3 ←→ _a4 ) in the figure).
When the T-shaped piston 11 is inserted into the cylinder 12, a cam ring 15 is fitted into the cam portion 14. The inner peripheral surface of the cam ring 15 is provided with a pair of projections 151, 152 which can be engaged with the cams 141, 142, respectively. An engagement portion 121 for attaching an end cap 16 is provided at the end of the cylinder 12 in the direction of the arrow _a1 in the drawing. The end cap 16
The small diameter portion 1 is formed at the end in the direction of the arrow _a2 in the figure.
The end cap 16 is attached to the cylinder 12 by inserting the end cap 161 into the engagement portion 121. In this case, the engagement portion 121 is provided with split grooves 122, 123 so that the small diameter portion 161 can be easily inserted into the engagement portion 121. Also, in this case, the projections 162, 163 provided on the small diameter portion 161 are engaged with the through holes 124, 125 provided in the engagement portion 121, so that the end cap 16 does not fall off the engagement portion 121.
The cam ring 15 fitted into the cam portion 14 is positioned within the cylinder 12, and is positioned within the engaging portion 121 by being sandwiched between a small diameter portion (not shown) formed on the inside of the end of the engaging portion 121 in the direction of the arrow _a2 in the figure and the small diameter portion 161.

FIG. 3 shows the cam portion 14 developed. The cams 141 and 142 are the cam ring 15
The projections 151, 152 are formed in a substantially L-shape at the end of the first cam A, B in the direction indicated by the arrow _a in the figure. A and B, and insert the cam ring 15 into the cam part 1.
It has second cams C and D for fitting into the second cam.
The first cams A and B move in the direction of the arrow (a ₁ ←→a ₂ ) (T
The mold piston 11 has first guide portions 1A, 1B extending in the axial direction of the mold piston 11, and second guide portions 2A, 2B formed in a wave shape in the direction of the illustrated arrow (a ₃ ←→a ₄ ). The second cams C and D are indicated by the arrows shown in the figure of the T-shaped piston 11.
a _1st direction edge formed in the illustrated arrow a _2nd direction
guide parts 1C, 1D and this third guide part 1C, 1
It has fourth guide portions 2C and 2D formed from the end in the direction of arrow a ₂ in D to the first guide portions 1A and 1B in the direction of arrow a ₄ in the illustration.

When fitting the cam ring 15 to the cam portion 14, the protrusions 151, 152 of the cam ring 15
are positioned at the ends of the second cams C and D in the direction indicated by the arrow _a1 , moved in the direction indicated by the arrow _a2 in the figure, and then rotated in the direction indicated by the arrow _a4 in the figure.

When the T-shaped piston 11 is in the position shown by the solid line in FIG.
The _first
The T-shaped piston 11 is stopped by the protrusions 151, 152 of the cam ring 15 coming into contact with the ends of the guide portions 1A, _1B in the direction indicated by the arrow a. From this state, when the T-shaped piston 11 is pushed in the direction of arrow _a1 shown in the figure, the protrusions 151 and 152 of the cam ring 15 move from the positions ○a and ○a shown in the figure within the first guide parts 1A and 1B, and move from the positions shown in the figure. ○C, ○E positions are reached. From this state, further T-type piston 1
When 1 is pressed, the protrusions 151, 152 are guided by the cam surfaces A ₁ , B ₁ of the second guide portions 2A, 2B and rotate in the direction of the arrow a ₃ shown in the figure. When the protrusions 151 and 152 reach the ○ and ○ positions shown in the figure, the T-shaped piston 11 cannot be pushed, and unless the pushing force is removed from the T-shaped piston 11,
The T-shaped piston 11 is slid by a spring 13 in _two directions indicated by arrows a in the figure. As a result, the protrusions 151, 152 are now moved to the second guide portions 2A, 2.
It is guided by the cam surfaces A ₂ and B ₂ of B and reaches the positions shown in the figure. As a result, the T-shaped piston 11 moves as shown by the arrow in the figure.
a It becomes unable to slide in _two directions and stops. The position of the T-shaped piston 11 at this time is the position shown by the broken line in FIG. From this state, when the T-shaped piston 11 is pushed in the direction of arrow a ₁ in the figure, the protrusions 151 and 152 are guided by the cam surfaces A ₁ and BB ₁ of the second guide parts 2A and 2B, and the cam ring 15 is moved in the direction of arrow a ₃ in the figure. Rotate in the direction. When the protrusions 151 and 152 reach the positions shown in the figure, the T-shaped piston 11 cannot slide in the direction of the arrow a ₁ shown in the figure, and if the force pushing the T-shaped piston 11 is removed, the T-shaped piston 11 will not move against the spring 13. Therefore, the protrusions 151, 152 are slid in _{the two} directions indicated by the arrow a in the figure.
is guided by the cam surfaces A 2 and _B 2 of the second guide parts 2A and 2B, and the protrusion 151 is now guided by the cam surfaces A ₂ and B 2 of the second guide parts 2A and 2B.
, the protrusion 152 comes to be guided by the first guide portion 1A, and when the protrusions 151 and 152 reach the positions ○a and ○a shown in the figure, respectively, the T-shaped piston 11 moves in the direction shown by the arrow.
a It becomes unable to slide in _two directions and stops. In other words, the state shown by the solid line in FIG. 1 is reached.

However, the above configuration has the following drawbacks. That is, the second cams C and D are formed from the ends of the first guide portions 1A and _1B in the direction indicated by the arrow a, that is, as shown in FIG. 4, the dimensions l ₁ and l ₂ are equal, and It is formed axially symmetrically with respect to the T-shaped piston 11. Therefore, the T-shaped piston 11 slides in _{the two} directions indicated by the arrow a, and the protrusion 1 of the cam ring 15
When 51 and 152 are in the ○a and ○a positions, the groove width of the cam is formed wider than the width of the protrusions 151 and 152, so when a force is applied to the cam ring 15 in the direction of arrow _a shown in the figure, the cam ring 15 moves as shown in the figure. Arrow a It may rotate in ₃ directions. When such a situation occurs, when an attempt is made to slide the T-shaped piston 11 in the direction of arrow a ₁ shown in the figure, the protrusions 151 and 152 are pulled toward the cam surfaces C ₁ and D ₁ of the second cams C and D. Hanging,
The T-shaped piston 11 may not be able to slide smoothly in the direction of the arrow _a in the figure, may become stuck and produce an abnormal noise, or may not be able to slide at all.

This idea was made to deal with the above situation, and without making any special modifications (addition of parts or major changes in the configuration), the current configuration can be used.
It is an object of the present invention to provide a sliding device that can eliminate the occurrence of strange operational sensations, strange noises caused by sticking, and malfunctions during use, and can improve operational reliability.

Hereinafter, one embodiment of this invention will be described in detail with reference to FIG. It should be noted that FIG. 5 shows the cam section developed as in the previous FIG. 3, and the same parts as in the previous FIG. 3 are given the same reference numerals. In the figure, E and F are the second cam that is a feature of this invention, and the third guide part 1
E, 1F and fourth guide portions 2E, 2F. These cams E and F are different from the previous cams C and D (see FIG. 3) in bending dimensions, that is, dimensions l ₁ and l ₂ in the arrow a ₁ ←→a ₂ direction. In the illustrated case, for example, l ₁ >l ₂ . In this case, the end of the fourth guide portion 2F of the second cam F in the direction of arrow a ₄ and the end of the first guide portion 1B of the first cam B in the direction of arrow a ₁ coincide. On the other hand, the fourth guide portion 2E of the second cam E is shown by the arrow
The a ₄ direction end and the illustrated arrow a ₁ direction end of the first guide portion 1A of the first cam A do not coincide. In other words, the first
The second guide portion 1A of the cam A extends further in the direction of arrow a1 from the end of the fourth guide portion 2E of the second cam E in the direction of _{arrow a4 .} In this case, the positions of the first guide portions 1A and 1B in the direction of the arrow a ₁ shown in the figure, that is, the dimensions l ₃ and l ₄ are set equal. The cam ring 1 is
5, the cam ring 15 may be inserted obliquely with respect to the axial direction of the T-shaped piston 11. In this case, the groove width of the cam, the difference between dimensions l ₁ and l _2, etc. are set to values that allow the cam ring 15 to be inserted diagonally.

Setting the dimensions l ₃ and l ₄ equally means that when the T-shaped piston 11 is in the position shown by the solid line in FIG.
Since the cam ring 15 is held perpendicular to the T-shaped piston, the locked state of the T-shaped piston 11 can be stabilized. Therefore, this embodiment uses the first
It can be said that the second cams E and F are formed from different positions in the _two directions of the arrow a ₁ ←→a in the figure with respect to the guide portions 1A and 1B. According to such a configuration, when the T-shaped piston 11 slides in the _two directions indicated by the arrow a and the protrusions 151 and 152 of the cam ring 15 are at the positions ○a and ○a shown in the figure, the cam ring 15 moves in the direction shown by the arrow a. Even if rotation force is applied in _three directions, protrusion 1
51 gets caught on the cam surface _A3 and does not rotate. Therefore, the protrusions 151 and 152 can be hooked on the second cams C and D (see FIG. 3) to smoothly slide the T-shaped piston 11 in the direction of the arrow _a in the figure, as in the conventional case. There are no problems such as sticking, sticking, making strange noises, or not being able to slide at all.

FIG. 6 shows not only the second cam E but also the second cam F as well as the arrow shown in the first guide portion 1B of the first cam B.
a It is formed not from the end in _one direction but from the middle of its extension. Also in this case, the bending dimensions l ₁ and l ₂ of the second cams E and F are set to different sizes.

Of course, even in such a configuration, the same effects as in the previous embodiment can be obtained.

Note that this invention is not limited to the previous embodiment, and the point is that the invention is not limited to the above-mentioned embodiment.
The cam may be formed from a different part in the sliding direction of a sliding member such as the T-shaped piston 11 from the first cam. This invention also applies to a sliding device in which a cam is formed on the inner surface of a cylindrical member such as the cylinder 12, and a rotating body such as the cam ring 15 is integrally attached to the sliding member. Of course, it is possible to implement it. In addition to this, various other modifications can be made without departing from the gist of the invention.

In this way, according to this invention, the current configuration can be used without making any special major modifications (addition of parts or major changes in the configuration), and can be used without causing any discomfort during operation or the occurrence of catching noises. It is possible to provide a sliding device that can eliminate the occurrence of malfunctions and improve operational reliability.

[Brief explanation of drawings]

Figure 1 is an assembled front view of the sliding device, Figure 2 is the 1st
Fig. 3 is an exploded view to explain the drawbacks of the conventional sliding device, Fig. 4 is a partially enlarged view of Fig. 3, and Fig. 5 is an exploded perspective view of the sliding device according to this invention. FIG. 6 is a developed view of the main parts of one embodiment, and FIG. 6 is a developed view of another embodiment. 11...T-type piston, 12...cylinder,
13...Spring, 14...Cam part, 15...
Cam ring, 16... End cap, 141,
142...Cam, 151, 152...Protrusion, A,
B...first cam, E, F...second cam.

Claims (1)

[Claims for Utility Model Registration] A cylindrical member, a sliding member slidably inserted into the cylindrical member, and a sliding member inserted into the cylindrical member in a direction opposite to the insertion direction thereof. a ring-shaped member provided on the cylindrical member or the sliding member so as to be rotatable about the axis of the sliding member; and a ring-shaped member on the sliding member or the cylindrical member. a first guide section formed along the axial direction of the sliding member; a first cam having a second guide portion formed on the sliding member or the cylindrical member; a third guide part formed to extend along the axis of the sliding member from an end of the third guide part on the urging direction side of the elastic member to the first guide part; a second cam having a fourth guide portion formed up to the fourth guide portion; and a protrusion formed on the ring-shaped member so as to engage with the first and second cams, the protrusion being the fourth guide portion. The ring-shaped member is fitted into the second cam via the first cam, and in this state, the ring-shaped member is rotationally driven by the first cam as the sliding member slides. A state in which the protrusion is locked at an end of the first guide portion in a direction opposite to the biasing direction of the elastic member and a state in which the protrusion is locked at a predetermined position in the second guide portion can be selectively set. In the sliding device configured as above, the fourth guide section is located at a position shifted by a predetermined distance in the biasing direction from an end of the first guide section on the opposite side to the biasing direction of the elastic member. A sliding device characterized in that it is connected to the first guide section.