JP2696233B2 - Slider feeding device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a slider feeding device.

2. Description of the Related Art Conventionally, as this type of feeding device, a hollow housing having an open front surface, a slider which is slidably held in a hollow portion of the housing and which enters and exits from the open front surface, Urging means for urging in a direction to be extended from the open front surface, releasable locking means for locking the slider at a storage position in the hollow portion of the housing against the urging force of the urging means, and said urging means Some have a braking means for attenuating the urging force.

A cylinder type damper or a rotary damper has been used for the braking means.

When using a cylinder type damper, fix the cylinder to one of the housing and the slider, and fix the piston rod to the other, so that the piston reciprocates in the cylinder as the slider moves. Had adopted.

When a rotary damper is used, a rack is provided on one of the housing and the slider along the sliding direction of the slider, and the other includes a gear mechanism having a built-in clutch mechanism for meshing with the rack; When a rotating damper having a meshing gear is fixed, and the slider is moved in one direction, a rotating force is transmitted to the rotating damper by a gear mechanism meshing with the slider to obtain a braking force, and when the slider moves in the other direction, The transmission of the rotational power is cut off by the clutch mechanism, so that the braking force by the rotary damper does not work.

[Problem to be Solved by the Invention] When a cylinder type damper is used, it is easy to obtain a unidirectional damper and the connection structure can be simplified.
Since the sliding amount of the slider is regulated by the stroke of the piston, there is a problem that a damper having a large stroke must be used to increase the sliding amount of the slider.

That is, when mounting the cylinder in the housing,
The mounting space for the damper must be secured in the depth direction of the housing. Therefore, when the stroke of the damper is increased, the overall length of the cylinder is also increased, and the depth of the housing is accordingly increased.

Also, when the cylinder is mounted on the slider, a mounting space must be secured between the slider and the housing. For this reason, if the stroke of the damper is increased, the size of the cylinder is also increased, and the thickness of the housing is increased.

In any case, when the cylinder type damper is used, there is a disadvantage that the product is increased in size when the sliding amount of the slider is increased.

On the other hand, when a rotary damper is used, there is an advantage that the slide amount of the slider can be increased, but a rack is required, and a braking mechanism is applied in both forward and reverse rotation directions, so a clutch mechanism is required. Therefore, the structure becomes complicated, and the gear mechanism including the rotary damper, the rack, and the clutch mechanism must be disposed within the space between the slider and the housing. However, there is a problem that it is difficult to make the product thinner.

Therefore, the present invention is to solve the above-mentioned problems, and the purpose thereof is to use a cylinder-type damper device and increase the sliding amount of the slider,
An object of the present invention is to provide a feeding device that is thin and suitable without increasing the depth of the housing.

Means for Solving the Problems Therefore, the present invention has been made to achieve the above object, and its contents will be described below with reference to embodiments shown in the drawings.

The braking means according to the present invention comprises a large and small number of equal length links (31 ...).
Are pivoted with pins (32 ...), respectively, and the pin at one end (for example, the center pin 32a at the tip) is connected to the housing (2).
And a pantograph-shaped transmission device (30) in which a pin at the other end (for example, the center pin 32b at the rear end) is connected to a slider (for example, the drawer 3), and the cylinder (28) is connected to both pins ( It is characterized by comprising a cylinder type damper device (27) supported on an extension line connecting 32a and 32b) and connecting a piston (29) on a connection line connecting both pins.

[Operation] Therefore, according to the present invention, first, in order to extend the slider (for example, the drawer 3) from the state stored in the housing (2), the locking means (11) is locked. Can be canceled.

When the locking means is released, the slider is biased (10)
Gradually from the open front of the housing due to the urging force of. Thus, when the slider is extended, the pantograph-shaped transmission device (30) gradually expands, and the piston (29) is pulled out of the cylinder (28), whereby a braking force is applied. For this reason, the urging force of the urging means is attenuated by the braking force of the damper device (27), and the slider is quietly and slowly extended.

On the other hand, in order to store the extended slider in the housing, the slider may be pushed in against the urging force of the urging means. Thus, when the slider is pushed to the storage position in the housing, the slider is locked in the middle part of the housing by the locking means against the urging force of the urging means.
Also, with the retreat of the slider, the transmission device is gradually shortened,
The piston is pushed into the cylinder, but if the damper device is unidirectional, no braking force is applied at that time, and the slider can be pushed relatively lightly.

[Embodiment] The present invention will be described below based on an embodiment shown in the drawings.

In the figure, 1 indicates a letter case, and this letter case 1
As shown in FIG. 2 and FIG. 3, a housing 2 having a front surface opened in three stages up and down, and a slider which is slidably held in each stage of the housing 2 and which enters and exits from each open front surface of the housing 2. It consists of three drawers 3 in the upper and lower stages.

Each of the drawers 3 is slidably held on the bottom surface of each step of the housing 2, and is axially fixed to the front edge of the slide plate 4 so as to slide integrally with the slide plate 4 and to move forward. The slide plate 4 is provided with a door 6 that slides down horizontally and opens and opens and closes each open front surface of the housing 2. A tray 6 that slides integrally with the slide plate 4 is held on the upper surface of the slide plate 4. Is a functionally stored letter set. For example, in the lower tray 6,
As shown in Fig. 3, writing utensils are stored, 7a is a brush, 7b is an inkstone, 7c is ink, 7d is a jug, 7e is a paperweight,
The tray 6 is provided with depressions 8a to 8e respectively corresponding to the tools 7a to 7e, and each of the depressions 8a to 8e is provided with a respective tool 77.
a to 7e can be arranged and stored, and the tools 7a to 7e do not move when the drawer 3 slides. Similarly, the upper and middle drawers 3 also have a tray 6, and although not shown, the upper tray stores address books and stamps, and the middle tray stores letter paper and postcards.

Next, a description will be given of the drawing device of the drawer 3. As shown in FIG. 1, the drawing device is fixed to the bottom surface of each step of the housing 2 and holds the slide plate 4 of the drawer 3 slidably. 9 and urging means for urging the slide plate 4 in a direction in which the slide plate 4 is extended from the open front surface of the housing 2.
10, a releasable locking means 11 for locking the slide plate 4 at a storage position in the hollow portion of the housing 2 against the urging force of the urging means 10, and attenuating the urging force of the urging means 10. A braking means 12 is provided. The slide plate 4 may be slidably held on the bottom of the housing 2 without the base plate 9.

Between the base plate 9 and the slide plate 4, bearing devices 13 for reducing sliding resistance are arranged at various places.

Each of the bearing devices 13 includes a roller 14 and this roller
The roller 14 and the holding frame 15 are plastic moldings, each of which is assembled beforehand and then attached. Note that a ball bearing or the like may be used instead of the roller 14.

First, the base plate 9 has two types of bearing devices 13a, 13a.
b is attached, on the bottom of the left and right sides of the front edge,
A pair of left and right bearing devices 13a, 13a holding two rollers 1, respectively, are fixed with their rollers 14 facing upward (No.
4,6). Also, the left and right end portions of the base plate 9 are folded upward, and the upper ends of both folded side pieces 16 and 16 are further folded inward facing each other to provide a total of four tongue pieces 17. A total of four bearing devices 13 each holding one roller 14
are fixed with their rollers 14 facing downward. The upper and lower bearing devices 13a and 13b are staggered in the front-rear direction, and the upper end of the roller 14 of the lower bearing device 13a and the lower end of the roller 14 of the upper bearing device 13b are slightly separated from each other when considered on the same plane. I have.

On the other hand, the slide plate 4 also has two types of bearing devices 13.
c, 13d are attached, a pair of left and right bearing devices 13c, 13c holding two rollers 14, respectively, are fixed on the bottom of the left and right sides of the trailing edge, with the rollers 14 facing downward,
Each roller 14 slides on the upper surface of the base plate 9 (FIG. 7).
A pair of left and right bearing devices 13d, 13d holding one roller 14 are provided on the outer surfaces of both folded pieces 18, 18, respectively. Are fixed laterally, and each roller 14 is in sliding contact with the inner surface of the left and right side pieces 16 of the base plate 9. Also, the left and right folded pieces 18 of the slide plate 4 are the upper and lower bearing devices of the base plate 9.
It is inserted into the space between 13a and 13b and held from above and below (Fig. 6).

Next, as shown in FIG. 1, a constant pressure spring 19 (conston spring) is used for the urging means 10 described above. In addition, not only the constant pressure spring 19 but also a coil spring may be used.

The constant pressure spring 19 is always wound around the drum 20 by its spring force, and both ends of the drum 20 are rotatably held by the holder 21. Then, the holder 21 is fixed to the rear end of the slide plate 4 so as to be buried, and the free end of the constant pressure spring 19 is pulled out from under the slide plate 4, and the upper surface of the base plate 9 is moved along the front edge thereof. The slide plate 4 is constantly urged against the base plate 9 in a direction protruding from the open front surface of the housing 2 by the restoring force of the fixed and constant pressure springs 19 wound around the drum 20 (FIG. 4).

The locking means 11 is provided within a space between the upper surface of the base plate 9 and the lower surface of the slide plate 4 and protrudes downward from the rear lower surface of the slide plate 4. And a lock plate 23 having a hook portion 23a at the other end hooked on the locking pin 22.
In the drawing, reference numeral 24 denotes a mounting base for the lock plate 23, and a boss projecting upward from the upper surface of the mounting base 24.
After passing the torsion spring 25 through 24a, lock plate 2
3 through the shaft hole 23b at one end, and screw the screw 26 into the boss 24a, thereby compressing the torsion spring 25 between the lower surface of the lock plate 23 and the upper surface of the mounting base 24, and attaching one end of the torsion spring 25. By locking the other end of the base 24 to the lock plate 23, the unwinding force of the torsion spring 25 constantly urges the lock rate 23 clockwise, that is, in the opening direction of the hook 23a. Further, on the upper surface of the lock plate 23, there is a locking piece 24b projecting upward slightly away from the periphery of the boss 24a, and one end of the lock plate 23 contacts the locking piece 24b, so that the torsion spring 25 Receiving the unwinding force, the lock plate 23 is prevented from turning any further. Then, the mounting plate 24 is screwed onto the rear upper surface of the base plate 9, whereby the lock plate 23 is mounted on the rear upper surface of the base plate 9 via the mounting base 24. The hook portion 23a of the lock plate 23 is hooked on the locking pin 22 at the retracted position of the slide plate 4, locks the slide plate 4 at the retracted position against the restoring force of the constant pressure spring 19, and the slide plate 4 The locking pin 22 is released when it is pushed in a little too far beyond the storage position. Note that as the lock means 11, a so-called raised latch or the like that performs the same operation may be used.

As shown in FIG. 1, a piston cylinder type air damper device 27 is used for the braking means 12. The damper device 27 is not limited to air, and may be an oil or gas injection type damper.

As shown in FIGS. 4 and 5, the tamper device 27 has an opening end of the cylinder 28 facing forward on the rear upper surface of the base plate 9 and is fixed in parallel to the sliding direction of the slide plate 4, and the tamper device 27 is fixed to the piston 29. The slide plate 4 is moved to a pantograph-shaped transmission device 30.
Are interconnected via

As shown in FIG. 1, the transmission device 30 is composed of a large number and a small number of pairs of equal-length links 31. Then, the center pin 32a at the front end is axially mounted on the rear upper surface of the slide plate 4, in this case, the rear end of the holder 21 of the constant pressure spring 19,
The center pin 32b at the rear end is axially mounted on the rear upper surface of the base plate 9, and one end of the connecting rod 33 is pivotally supported at the center pin 32c next to the center pin 32b at the rear end. The other end is pivotally supported by the piston 29 (FIGS. 4 and 5).
In the drawing, reference numeral 34 denotes a guide plate on which the lower ends of the center pins 32a to 29d of the transmission device 30 are slidably contacted. The guide plate 34 is screwed to the upper surface of the center of the base plate 9, and the rear end thereof has the rear end. The center pin 32b is mounted on the shaft.

When the slide plate 4 is fed out by the restoring force of the constant pressure spring 19, the transmission device 30 has its isometric link 31 linearly extended,
Since the center pins 32a to 29d are spaced apart from each other, the piston 29 is pulled out of the cylinder 28 via the connecting rod 33, and a braking force acts at that time (see FIG. 8 (c) and FIG.
9,10).

On the other hand, when the slide plate 4 is pushed in against the restoring force of the constant-pressure spring 19, the equal-length links 31 buckle, and the centers of the center pins 32a to 29d approach each other. The piston 29 is pushed into the cylinder 28 via the rod 33 (FIGS. 4, 5 and 8 (d)). At this time, the O-ring 35 retreats in the ring groove 29 'because the ring groove 29' of the piston 29 is formed wider than the O-ring 35 before and after. For this reason, concave air escape grooves 36, 36 are provided at the retreat position of the O-ring 35 in the ring groove 29 ', so that the air in the cylinder 28 escapes outside through the escape groove 36. Therefore, the braking force does not work, and the pushing force of the slide plate 4 is prevented from increasing due to the braking force of the damper device 30 (FIGS. 8 (a), (b), (d)).

Next, the mounting structure of the door 5 will be described. As shown in FIG. 1, a pair of left and right tongue-shaped bearing pieces 37, 37 protruding rearward are provided on the inner surface of the door 5. The rotating shaft 3 is attached from the piece 37 to the bearings 38, 38 at the left and right ends of the front edge of the slide plate 4.
The opening and closing door 5 is tilted forward with respect to the slide plate 4 and opened by passing 9 and 39 in series horizontally (FIGS. 3 and 9).
Note that the door 5 may be fixedly provided on the front edge of the slide plate 4 so as to be substantially upright.

As shown in FIG. 1, one cylinder 40 is fixed at the center of the front edge of the slide plate 4, and a compression spring 41 is housed from the open end of the cylinder 40.
Is compressed between the piston 42 and the closed end of the cylinder 40. Then, each piston 29 is connected to the inner surface of the lower frame 35 of the door 5 via the joint 43. The joint 43 has one end supported on the inner surface of the lower frame 35 of the door 5 and the other end supported on the piston 29. The floating shaft 43a at one end of the joint 43 is connected to the rotating shaft 39 of the door 5 and the joint 43. Is moved up and down with an imaginary line 1 connecting the fixed shaft 43b at the other end.

Therefore, in parallel with the restoring force of the compression spring 41, the floating shaft 43a
Becomes stable at the lower position from the imaginary line 1 and holds the door 5 in an upright state (FIG. 4). When the door 5 is opened, the floating shaft 43a moves over the imaginary line l. The door 5 opens almost horizontally with the slide plate 7 with a click feeling (FIG. 9).

On the other hand, in FIG. 1, reference numeral 44 denotes a cover to be mounted on the slide plate 4, on which the tray 6 is mounted (FIG. 4).
Reference numeral 45 denotes a guide frame 45 for holding the tray 6. The guide frame 45 is provided on a top surface of a front edge portion of the slide plate 4 with a pair of mounting pieces.
The tray 6 is fixed at 46, 46 so that the folded edge 6 'of the tray 6 rests thereon, so that the tray 6 slides integrally with the slide plate 4, and the tray 6 hits the guide frame 45 so as not to jump out. (Figures 1, 4, and 5).

Next, the operation of the feeding device having the above configuration will be described.

First, as shown in FIGS. 4 and 5, in order to pull out the drawer 3 housed in the housing 2, the front face of the opening / closing door 5 may be slightly pushed into the housing 2.

When the door 5 is pushed in, the slide plate 4 retreats, and the locking pin 22 retreats a little, whereby the lock plate 23 is pushed by the locking pin 22 to rotate a little, and the hook portion 23a
Release the locking pin 22 from the opening. For this reason, the slide plate 4 gradually projects from the open front surface of the housing 2 due to the restoring force of the extended constant-pressure spring 19 to wind around the drum 20 (FIG. 9).

As the slide plate 4 moves forward, the pantograph-shaped transmission device 30 extends, and in order to pull out the piston 29 from the cylinder 28, outside air is taken into the cylinder 28 through its orifice 28 'to brake the movement of the piston 29 (ninth embodiment). , 10).
For this reason, the movement of the slide plate 4 by the constant pressure spring 19 is braked, and the slide plate 5 advances quietly and slowly.

Then, when the constant pressure spring 19 is wound around the drum 20,
The advance of the slide plate 4 stops, and this position becomes the most advanced position of the slide plate 4, and the tray 6 also stops at a position where it has advanced integrally with the slide plate 4 (FIGS. 3, 9, and 10).

Next, in order to open the door 5, it is sufficient to hold the door 5 and bring it down, and the door 5 opens to a substantially horizontal position, and gives a click feeling to the user when opening (third, third). 9).

On the other hand, in order to house the drawn-out drawer 3 in the housing 2, the door 5 may be closed and then the front surface of the door 5 may be pushed into the housing 2.

First, when the door 5 is lifted up from below, there is a click feeling similar to when the door is opened. When the click feeling is felt, even if the hand is released from the door 5, the door 5 is connected to the joint 43. Is held upright by the movement of the floating shaft 43a (FIG. 4).

Next, when the front surface of the door 5 is pushed toward the hollow portion of the housing 2, the slide plate 4 retreats integrally with the tray 6,
At that time, the constant pressure spring 19 wound around the drum 20 is gradually fed out against the spring force. Therefore, it is necessary to push in against the spring force of the constant pressure spring 19, and the inner surface of the lower end of the opening / closing door 5 eventually hits the front edge of the guide frame 45, and the opening / closing door 5
Cannot be pushed further into the back, and when the opening and closing door 6 is stopped at that position, the slide plate 4 is slightly pushed back by the restoring force of the constant pressure spring 19. As a result, the locking pin 22 is hooked into the hook portion 23a of the lock plate 23 and receives the restoring force of the constant pressure spring 19, thereby locking the slide plate 4 at the storage position in the hollow portion of the housing 2.

Therefore, the open front surface of the housing 2 is closed by the opening / closing door 5 that is closed upright, and the tray 6 is stored in the hollow portion of the housing 2.

When the slide plate 4 is retracted, the pantograph-shaped transmission device 30 is folded and shortened, and the piston 29 is pushed into the cylinder 28 via the connecting rod 33. The braking force does not work as I did.

Further, the length and number of the equal length links 31 constituting the transmission device 30 are not limited to the embodiment shown in the drawings, and the length of the transmission device 30 when extended is the same, and the equal length links are shortened. By increasing the number, the distance between the center pins can be shortened. Conversely, by increasing the length of the isometric links and decreasing the number, the distance between the center pins can be lengthened. By changing the length, the stroke of the damper device 30 can be freely adjusted. For example, in order to increase the sliding distance of the slide plate 4, the braking force can be obtained with the same stroke by increasing the number of links without changing the length of the isometric links. Also, when the slide distance of the slide plate 4 is shortened, the stroke of the damper does not need to be changed by reducing the number of the isometric links without changing the length thereof. Conversely, if the length of each isometric link is shortened without changing the number of isometric links, the braking force can be obtained with a shorter stroke. Further, by limiting one or both of the length at the time of extension and the length at the time of shortening without changing the number and length of the isometric links, the damper device can be used.
30 strokes can be adjusted.

Further, in the embodiment shown in the drawings, the drawer 3 of the letter case 1 has been described as an example, but in addition, the ashtray and the accessory case in the vehicle compartment, or the various sliders for furniture and home appliances, etc. It can be used for equipment.

[Effects of the Invention] As described above, according to the present invention, the stroke of the cylinder-type damper device can be freely adjusted by using the pantograph-shaped transmission device, and the extension amount of the slider is relatively large. The depth of the housing can be shortened, and a feeding device suitable for a thin product can be provided.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is a perspective view of a letter case, FIG. 3 is an explanatory diagram of a tray, and FIG. FIG. 5 is a cross-sectional view of the same, FIG. 6 is a VI-VI of FIG.
7 is a sectional view taken along line VII-VII in FIG. 4, FIGS. 8 (a) to 8 (d) are explanatory views of the piston, FIG.
The figure is a longitudinal sectional view showing a state where the drawer is extended and the opening / closing door is open, and FIG. 10 is a transverse sectional view showing the same. 2 ... Housing, 3 ... Drawer as slider, 10
... biasing means, 11 ... locking means, 12 ... braking means, 31
…… equal length links, 32 …… pins.

Claims (1)

(57) [Claims] 1. A hollow housing having an open front surface, a slider slidably held in a hollow portion of the housing, and a slider which enters and exits from the open front surface, and biases the slider in a direction of extending from the open front surface of the housing. Biasing means, releasable locking means for locking the slider at a storage position in the hollow portion of the housing against the biasing force of the biasing means, and braking means for attenuating the biasing force of the biasing means. In the slider feeding device described above, the braking means has a large number and a small number of equal length links pivotally connected with pins, a pin at one end thereof is axially fixed in a hollow portion of the housing, and a pin at the other end is connected to the slider. A cylinder-type damper device in which a pantograph-shaped transmission device and a cylinder are supported on an extension line connecting both pins and a piston is connected on a connection line connecting both pins. A feeding device for a slider.