JP3041032U - Switchgear - Google Patents

Abstract

(57) An object of the present invention is to provide an opening / closing device for temporarily stopping the closing operation of the opening / closing body for opening / closing the box body. SOLUTION: A link mechanism in which four links are connected by shaft pins, a fixed mounting metal fitting to be mounted on the box body, a movable mounting metal fitting to be mounted on the opening / closing body, and a stopper pin,
A guide pin protruding from the tip of the stopper pin via a spring and a guide plate pivotally mounted so as to be inserted at a position facing these pins are provided, and an opening / closing body is provided on the plate surface of the guide plate. The pin groove along the locus of the stopper pin and guide pin between the opening and closing of the box to the set angle, and the opening and closing of the opening and closing the box body from that angle, and the opening and closing body at the set angle. A pin receiving portion for receiving the stopper pin at the closed position is provided.

Description

[Detailed description of the invention]

[0001]

TECHNICAL FIELD The present invention relates to a switchgear.

[0002]

2. Description of the Related Art Conventionally, a ratchet-type bed that uses a cam is used as an opening / closing device that connects the opening / closing body to the box body such as a box type bed and bed, or a storage box and its opening / closing lid. Switchgear is used.

[0003]

In the above-mentioned conventional opening / closing device, when the opening / closing body is opened from the box body, by repeating the operation of opening and stopping at an angle corresponding to the tooth pitch of the ratchet, Although it can be opened in stages, conversely, when the open / closed body is closed to the box body, it operates so that the open / closed body is closed at once without stopping on the way. Therefore, with the opening / closing body open, for example, even if the child is playing a trick to put a part of the hand or body in the box body, the opening / closing body should be closed at once without checking it. If the open / close body is heavy like the bed of a bed, there is a risk of injuring a child. In addition, the above-mentioned conventional switchgear not only has a design problem, but also has many problems such as a large number of parts, a complicated assembly process, and many failures during use. In the present invention, when closing the opening / closing body, when the opening / closing body is closed to the set angle, the closing operation of the opening / closing body is automatically stopped, and it is confirmed whether there is a danger if it is completely closed. Then, it has the safety that it can be operated to open and close the opening and closing once, and yet the structure is simple, the number of parts is small, and the assembly process is simple. The purpose is to provide a switchgear with few failures.

[0004]

[Means for Solving the Problems] In order to achieve the above object, the present invention has a portion of a link 1 that is close to one end pivotally attached to one end of a fixed mounting member by a shaft pin and attached to one end of the link 1. Connected one end of the link 2 with a shaft pin, connected the other end of the link 1 with one end of a link 3 having a movable mounting bracket by a shaft pin, and brought the other end of the link 2 closer to one end of the link 4. The other end of the link 4 is connected to the other end of the link 3 by a shaft pin, and one end of the link 4 is curved from the lower end of the other end of the fixed mounting bracket to the upper end of the intermediate part. Attach a slider that slidably fits into the notched guide hole, and in the middle of the link 2, a stopper pin that projects toward the fixed mounting bracket, and a spring pin that projects from the tip of the stopper pin. With a guide pin to The tip of the stopper pin and the tip of the guide pin are slidable on the plate surface of the guide plate that is pivotally mounted near the guide hole by the center pin and is inserted between the link 2 and the fixed mounting bracket. The stopper pin groove and the guide pin groove that are fitted to the open / close body mounted on the movable mounting bracket move from the closed position of the box mounted on the fixed mounting bracket to the completely opened position. The stopper pin and the guide pin along the trajectory of the stopper pin and the guide pin while the opening / closing body moves the box body from the completely opened position to the closed position at the set angle. Among the grooves P3 → P2 → P4 along the locus of the pin, the guide pin groove has a step having a lower step at P2 and a step having a higher step immediately before P4, A pin receiving part that receives the stopper pin at a position close to P4, and a groove along the trajectory of the stopper pin and the guide pin while the opening / closing body moves from the closed position to the position where the box body is completely opened. P4 → P5 → P6 and the groove P5 → P7 → PO along the locus of the stopper pin and guide pin while the opening / closing body closed to the position corresponding to P5 of this groove moves to the position to completely close the box body. Among them, the guide pin groove is characterized in that it has a step difference that decreases at P5 and a groove having a step difference that increases immediately before PO.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A portion close to one end of a link 1 is pivotally attached to one end of a fixed mounting member by a shaft pin, and one end of a link 1 is connected to the one end of the link 1 by a shaft pin. To the other end, one end of a link 3 having a movable mounting member is connected with a shaft pin. The other end of the link 2 is connected to a portion close to one end of the link 4 with a shaft pin, the other end of the link 4 is connected to the other end of the link 3 with a shaft pin, and the above-mentioned fixed attachment is attached to one end of the link 4. Mount the slider that is slidably fitted into the guide hole that is cut out so that it curves from the lower side of the other end of the metal fitting to the upper side of the middle part. In the middle of the link 2, a stopper pin that projects toward the fixed mounting bracket and a guide pin that projects from the tip of the stopper pin under spring pressure are provided.

[0006] The tip of the stopper pin and the guide pin of the guide pin are attached to the plate surface of the guide plate pivotally mounted near the guide hole by a center pin and inserted between the link 2 and the fixed mounting member. A stopper pin groove and a guide pin groove with which the tip is slidably fitted, and the opening / closing body mounted on the movable mounting bracket is completely opened from the closed position of the box body mounted on the fixed mounting bracket. While moving to the position, the grooves PO → P1 → P2 → P3 along the locus of the stopper pin and the guide pin, and while the opening / closing body moves from the completely open position of the box body to the closed position at the set angle. Among the grooves P3 → P2 → P4 along the locus of the stopper pin and the guide pin in, there is a step where the guide pin groove becomes lower at P2 and a step becomes higher immediately before P4. The groove that it has, the pin receiving portion that receives the stopper pin at a position close to the groove P4, and the stopper pin and the guide pin during movement of the opening / closing body from the position closed at the set angle to the position where the box body is completely opened. Grooves P4 → P5 → P6 along the locus, and a groove P5 along the loci of the stopper pin and guide pin while the opening / closing body closed to the position corresponding to P5 of this groove moves to the position where the box body is completely closed → Of P7 → PO, the guide pin groove has a step having a lower step at P5 and a groove having a step step becoming higher immediately before PO.

The switchgear having the above structure is used in two pieces, and the fixed mounting brackets are mounted on the inner surfaces of the opposite side walls of the box body by the mounting parts, respectively, and the movable mounting brackets are mounted. , Mounted on both sides of the inner surface of the opening / closing body used for opening / closing the box body with mounting parts. Then, in the state where the opening / closing body closes the box body, the link 1 is laid sideways with its shaft pin as a fulcrum, so that the links 3 and 4 are attracted to the link 1, and the link 2 is urged to the link 4, The slider is pressed against the tip of the guide hole when viewed from the link 1 side, and the stopper pin and the guide pin are located at the start position PO of the stopper pin groove and the guide pin groove.

When the opening / closing body that has closed the box body is opened, the link 1 rises with its shaft pin as a fulcrum, so that the links 3 and 4 move in a direction away from the link 1 and the link 2 links. 4 and the slider slides from the front end to the rear end of the guide hole as viewed from the link 1 side, and at the same time, the stopper pin and the guide pin move from PO to P3 in the stopper pin groove and the guide pin groove. Slide. Then, when the opening / closing body is completely opened, the slider is pressed against the rear end of the guide hole as viewed from the link 1 side, and the stopper pin and the guide pin reach the stopper pin groove and P3 in the guide pin groove.

Next, when the opening / closing body is closed, the slider slides from the rear end of the guide hole toward the front end, and at the same time, the stopper pin and the guide pin slide from P3 in the stopper pin groove and the guide pin groove toward PO. However, since the guide pin groove is lowered at P2 in the middle, the guide pin receives the spring pressure and drops rapidly, and the stopper pin and the guide pin go from P2 to P4 in the stopper pin groove and the guide pin groove. Slide. Then, when the opening / closing body is closed at the set angle, the guide pin climbs over the step just before P4, receives the spring pressure, and suddenly drops, and the stopper pin and the guide pin reach P4, and at the same time, the stopper pin Since it is received by the receiving part, it cannot be closed even if the opening / closing body is closed more than the above set angle.

[0012] Therefore, when the opening / closing body is once opened completely or is opened halfway and then closed, the stopper pin and the guide pin move from P4 to P6 in the stopper pin groove and the guide pin groove, or After sliding from P4 to P5 and P6, it slides from P6 or from P6 and P5 toward P4, but the guide pin groove is lowered at P5 in the middle, The pin suddenly drops under the spring pressure, the stopper pin and the guide pin slide from P5 to PO in the stopper pin groove and the guide pin groove, the guide pin crosses the step immediately before PO, and receives the spring pressure. The box body is completely closed by the opening / closing body as it rapidly descends and the stopper pin and guide pin return to PO. Then, the links 1 to 4 and the sliders also return to their original positions. The guide plate swings around the center pin as a fulcrum according to the stopper pin groove and the slide of the guide pin to the stopper pin groove and the guide pin groove. the above

[0008]

The opening / closing operation of the opening / closing body with respect to the box body can be repeated with the operation described in 1 cycle as one cycle.

[0011]

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 is a link, and a portion close to one end thereof is pivotally attached to one end of a fixed mounting member 5 by a shaft pin 6, and the link 1 One end of the link 2 is connected to one end of the link 2 by a shaft pin 7, the other end of the link 1 is connected to one end of a link 3 having a movable mounting member 8 by a shaft pin 9, and the other end of the link 2 is linked. 4 is connected to a portion near one end of the link 4 by a shaft pin 10, and the other end of the link 4 is connected to the other end of the link 3 by a shaft pin 11. At one end of the link 4, a slider 13 is slidably fitted in a guide hole 12 that is cut out so as to curve from the lower side of the other end of the fixed mounting member 5 to the upper side of the intermediate portion. At the intermediate portion of the link 2, a stopper pin 14 protruding toward the fixed mounting member 5, a guide pin 16 protruding from the tip of the stopper pin 14 by receiving the spring pressure of a coil spring 15 as shown in FIG. Alternatively, as shown in FIG. 4, there is provided a guide pin 16 which projects by receiving the spring pressure of the leaf spring 17. Reference numeral 18 is a hole formed at a plurality of positions of the fixed mounting member 5, into which mounting parts 18A are inserted. Numeral 19 is a hole provided at a plurality of positions of the movable mounting member 8, into which mounting parts 19A are inserted. Reference numeral 20 is a protrusion provided so as to stand upright from a projecting plate 21 projecting downward from the lower side of the other end of the fixed mounting member 5, and 22 is a protrusion provided so as to stand upright in the same direction as the protrusion 20 from the other end of the link 3. Then, a gas spring or an air spring is connected between the protrusion 21 and the protrusion 22 so that the opening / closing member attached to the movable mounting member 8 is controlled to be slowly closed. The protrusions 21 and 22 may be omitted.

Reference numeral 23 is a guide plate (so-called yoke) pivotally mounted near the guide hole 7 by a center pin 24, and is inserted between the link 2 and the fixed mounting member 5. As shown in FIG. 5, a stopper pin groove 25 and a guide pin groove 26 for slidably fitting the tip of the stopper pin 14 and the tip of the guide pin 16 are provided for the opening / closing member attached to the movable mounting member 8, for example, The locus of the stopper pin 14 and the guide pin 16 while the bed 27 of the bed moves from the closed position to the completely opened position of the box body attached to the fixed mounting member 5, for example, the box type bed body 28. Along the grooves PO → P1 → P2 → P3, the bed 27 moves from the position where the bed 28 is completely opened to a set angle, for example, to a position where the bed is closed at 15 degrees. Among the grooves P3 → P2 → P4 along the locus of the stopper pin 14 and the guide pin 16 during the time, the guide pin groove 26 has a step 29 that becomes lower at P2 and a step 30 that becomes higher immediately before P4. , A pin receiving portion 31 for receiving the stopper pin 14 at a position close to the groove P4, and a stopper provided while the bed 27 moves from the closed position at the set angle to the position where the bed body 28 is completely opened. Grooves P4 → P5 → P6 along the loci of the pin 14 and the guide pin 16 and the stopper pin 14 while the bed 27 closed to the position corresponding to P5 of this groove moves to the position where the bed body 28 is completely closed. Among the grooves P5 → P7 → PO along the locus of the guide pin 16, the guide pin groove 26 has a step 32 that becomes lower at P5, and a step 3 that becomes higher immediately before PO. It is provided with a groove having a.

Two opening and closing devices having the above-mentioned configuration are used, and the fixed mounting metal fittings 5 are applied to the inner surfaces of the left and right side walls of the bed body 28, and the mounting parts 18A are attached to the left and right side walls from the respective holes 18. Each fixed mounting member 5 is attached to the bed main body 28 by screwing, and the movable mounting members 8 are applied to both inner surface sides of the bed 27, and the mounting component 19A is screwed into the bed 27 from each hole 19. Then, each movable mounting member 8 is attached to the bed 27, for example.

In the state where the bed 27 completely closes the bed main body 28, as shown in FIG. 1, since the link 1 is turned sideways with the shaft pin 6 as a fulcrum, the link 3 and the link 4 are pulled toward the link 1. Then, the link 2 is pushed toward the link 4, the slider 13 is pushed against the tip of the guide hole 12, and the stopper pin 14 and the guide pin 16 are positioned at the start position P O in the stopper pin groove 25 and the guide pin groove 26. There is.

When the bed 27 that has closed the bed body 28 is opened, the link 1 rises with the shaft pin 6 as a fulcrum as shown in FIG. 2, so that the link 3 and the link 4 are separated from the link 1. The slider 13 slides to the rear end side of the guide hole 12, and at the same time, the stopper pin 14 and the guide pin 16 slide from PO to P3 in the stopper pin groove 25 and the guide pin groove 26. Then, when the bed 27 is completely opened, the slider 13 is pressed against the rear end of the guide hole 12, and the stopper pin 14 and the guide pin 16 reach P3 in the stopper pin groove 25 and the guide pin groove 26.

Next, when the bed 27 is closed, the slider 13 slides from the rear end of the guide hole 12 toward the front end, and at the same time, the stopper pin 14 and the guide pin 16 move in the stopper pin groove 25 and the guide pin groove 26. Although it slides from P3 toward PO, the guide pin groove 26 is lowered by the step 29 at P2 in the middle, so the guide pin 16 receives the spring pressure of the coil spring 15 or the leaf spring 17. After a sudden drop and making a clicking sound, the stopper pin 14 and the guide pin 16 slide from P2 in the stopper pin groove 25 and the guide pin groove 26 toward P4. Then, when the bed 27 is closed at an angle of 15 degrees with respect to the bed body 28, immediately after the guide pin 16 has passed over the step 30 immediately before P4, the guide pin 16 suddenly falls under the spring pressure and makes a clicking sound. When the stopper pin 14 and the guide pin 16 reach P4 at the same time as the stopper pin 14 is received by the pin receiving portion 31, the bed 27 cannot be closed even if the bed 27 is closed at an angle of 15 degrees or less. .

Then, when the bed 27 is once opened completely or is opened halfway and then closed, the stopper pin 14 and the guide pin 16 are changed from P4 to P6 in the stopper pin groove 25 and the guide pin groove 26. Or slide from P4 to between P5 and P6 and then from P6 or from between P5 and P6 toward P4, but the guide pin groove 26 at P5 in the middle Since the height of the guide pin 16 is lowered by the step 32, the guide pin 16 receives the spring pressure and suddenly descends to make a clicking sound, and then the stopper pin 14 and the guide pin 16 move to the stopper pin groove 25 and the guide pin groove 26. Slide from P5 to PO, and immediately after the guide pin 16 gets over the step 33 immediately before PO, it receives spring pressure and suddenly The bed 28 is completely closed by the bed 27 when the stopper pin 14 and the guide pin 16 return to PO by making a sudden clicking sound and making a clicking sound, and the links 1 to 4 and the slider 13 are completely closed. Also returns to the original position. The guide plate 23 swings about the center pin 24 as the stopper pin 14 and the guide pin 16 slide with respect to the stopper pin groove 25 and the guide pin groove 26.

Above

Through

The opening and closing operation of the bed 27 with respect to the bed body 28 can be repeated with the operation described in 1 cycle as one cycle. In the process of closing the bed 27, the bed 27 is about to be closed at an angle of 15 degrees, when the bed 27 is closed at 15 degrees, and when the bed 27 is once opened from the position closed at 15 degrees and then in the middle of closing. When the bed 28 is closed, a clicking sound is emitted four times, so that it can be confirmed that the opening / closing device is operating reliably.

The present invention is not limited to the above embodiment, and the bed 27 automatically stops the closing operation when the bed 27 is closed at an angle other than 15 degrees with respect to the bed body 28. In addition to being configured as a bed opening / closing device, it may be configured as an opening / closing device for an opening / closing lid for a storage box or an opening / closing device for an opening / closing body for other box bodies.

[0020]

[Effects of the Invention] Since the present invention is configured as described above, when the box body is closed by the opening / closing body, the closing operation of the opening / closing body automatically stops when the box body is closed to the set angle. It is possible to confirm whether or not the opening / closing body is dangerous before the box body is completely closed, and if it is confirmed that there is no danger, open the opening / closing body once and then operate to close it. Since the box body can be completely closed by the opening / closing body, it is safe, and the structure is simple, and the number of parts is small, so the assembly process is simple and there are few failures during use. can do.

[Brief description of the drawings]

FIG. 1 is a view showing a state in which a bed is closed in an embodiment in which an opening / closing device according to the present invention is attached between a box-type bed body and a bed of the bed.

FIG. 2 is a diagram showing a state in which a bed is opened in the embodiment.

FIG. 3 is a cross-sectional view showing an example in which a guide pin is incorporated in a stopper pin via a coil spring.

FIG. 4 is a cross-sectional view showing an example in which a guide pin is incorporated in a stopper pin via a leaf spring.

FIG. 5 is an enlarged plan view of a guide plate provided with a pin groove in which the tip of the stopper pin and the tip of the guide pin slide in accordance with the opening / closing operation of the bed.

[Explanation of symbols]

 1 to 4 link 5 fixed mounting bracket 8 movable mounting bracket 12 guide hole 13 slider 14 stopper pin 15 coil spring 16 guide pin 17 leaf spring 23 guide plate 25 stopper pin groove 26 guide pin groove 27 bed bed 28 box type bed body 29 step 30 step 31 pin receiving portion 32 step 33 step

Claims (1)

[Utility model registration claims] 1. A portion close to one end of the link 1 is pivotally attached to one end of a fixed mounting member with a shaft pin, and one end of the link 1 is connected with the shaft pin with the other end of the link 1. , One end of the link 3 having a movable mounting member is connected by a shaft pin, the other end of the link 2 is connected by a shaft pin to a portion close to one end of the link 4, and the other end of the link 4 is Connected to the end with a shaft pin, and attached to one end of the link 4 is a slider slidably fitted in a guide hole that is cut out so as to curve from the lower side of the other end of the fixed mounting bracket to the upper side of the middle part. The intermediate part of the link 2 is provided with a stopper pin projecting toward the fixed mounting member and a guide pin projecting from the tip of the stopper pin under spring pressure, and is pivotally mounted near the guide hole by a center pin. , And link 2 On the plate surface of the guide plate inserted between the fixed mounting brackets, there are a stopper pin groove and a guide pin groove for slidably fitting the tip of the stopper pin and the tip of the guide pin. Grooves PO → P1 → P2 → along the locus of the stopper pin and guide pin while the opening / closing body mounted on the metal fitting moves from the closed position to the completely opened position of the box body mounted on the fixed mounting metal fitting. Of P3 and the groove P3 → P2 → P4 along the locus of the stopper pin and the guide pin while the opening / closing body moves from the completely open position to the closed position at the set angle, the guide pin groove is P2. A groove having a step that becomes lower at P4 and a step that becomes higher immediately before P4, and a pin receiving portion that receives a stopper pin at a position close to the groove P4 A groove P4 → P5 → P6 along the trajectory of the stopper pin and the guide pin during the opening and closing member moves to the open position the complete box body from the closed position to the set angle, of the groove P5
Among the grooves P5 → P7 → PO along the locus of the stopper pin and the guide pin while the opening / closing body closed to the position corresponding to the above moves to the position where the box body is completely closed, the guide pin groove has a step which becomes low at P5. An opening / closing device provided with a groove having a step height increasing immediately before the PO.