JPH0547254Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is used, for example, in a copying machine, etc., to hinge a presser plate that can be moved up and down depending on the thickness of the object to be copied. The present invention relates to a suitable hinge for a lid.

[Conventional technology]

Conventionally, as illustrated in FIGS. 6 and 7, the above-mentioned hinge has been provided with a cam c at the upper end of a support rod b, which is attached to a main body a to be vertically movably supported by a cabinet d, etc., and a top lid e. A fixed body f to be mounted is pivotally connected to the fixed body f so as to be openable and closable about a support shaft g, and a sliding body h is attached to the fixed body f.
It is known to be able to freely slide in the front and back direction, and to be attached so as to come into elastic contact with the cam surface c' of the main body a by means of an internal spring i.

[Problem to be solved by the invention] However, in the above hinge, the fixed body f is
f', a front plate f'', and left and right side plates f, f, forming a box shape, while the sliding body h is formed into a rectangular shape that fits inside the fixed body f, and is installed inside the fixed body f. Because of this structure, not only does it become structurally heavy, but the sliding body Since the structure is such that the sliding pin l, which is resiliently biased by the spring i, is slidably guided by the cam surface c', since There are problems in that the sliding body h may not operate smoothly and the opening/closing operation of the top cover e tends to be unsmooth.

[Purpose of the invention] In view of these technical problems, the present invention aims to provide a hinge for a lift lid that is simple in structure, small in size, has a good appearance, and can be opened and closed smoothly. It is.

[Means for Solving the Problems] In order to achieve the intended purpose, the hinge for a lift lid according to the present invention has a main body for the hinge attached to the upper surface of a three-dimensional structure, and a hinge for the three-dimensional structure. It is equipped with a hinge fixing body attached to the upper lid side, a sliding body slidably held via the hinge fixing body, and a compression type spring for imparting elastic force to the sliding body. and the main body for the hinge has a support rod inserted into the three-dimensional structure, a cam portion integrally formed on the upper end of the support rod, and a cam surface attached to the upper surface of the cam portion. However, the cam part has a shaft hole formed on both sides of the cam part through which the support shaft passes, and the hinge fixing body consists of a thin plate part fixed to the top lid and the The flat plate part has an opening recessed from the proximal end toward the distal end, and a pair of mutually parallel elongated guide plates rising from both side edges of the opening. Shaft holes are formed for the shafts to pass through, and shaft holes for the stopper shaft pins to pass through are formed at the tips of these guide plates, and the sliding body is a hinge fixing body. It is made of a thick flat material with a width corresponding to the parallel spacing of both guide plates and a thickness slightly exceeding the height dimension of both guide plates. An opening large enough for the cam portion of the main body to fit into it and a pair of protrusions adjacent to each other on both sides of the opening are formed relative to each other, and each protrusion has an opening extending along the length thereof. A long hole is formed for relative engagement with the support shaft, and a pair of guide grooves are formed on both sides of the sliding body for relative engagement with both guide plates of the hinge main body. A spring storage hole for storing a compression type spring is formed in the thick part extending over the base end, and a shaft pin for a stopper is formed on the distal end of the sliding body, intersecting the spring storage hole and the distal end. A slit for interposing is formed long toward the base end side of the sliding body, and the deep part of the opening in the sliding body is in relative contact with the cam surface of the hinge main body over both sides of the opening. The shaft hole of the hinge main body, the proximal shaft hole of the hinge fixing body, and the long hole of the sliding body are aligned with each other, and In order to align the shaft hole on the distal end side of the body with the slit of the sliding body, both guide plates of the hinge fixing body and both guide grooves of the sliding body are relatively engaged, and the cam of the hinge body is the hinge body, the hinge fixing body, and the sliding body are fitted into the opening of the sliding body; The support shaft is inserted into the proximal shaft hole, the long hole of the sliding body, and the shaft hole of the hinge body, and the sliding pin of the sliding body is brought into pressure contact with the cam surface of the cam part of the hinge body. A compression type spring is stored in the spring storage hole of the sliding body, and in order to hold the compression type spring in the spring storage hole, the tip end side shaft hole of the hinge fixing body that matches each other in the above,
It is characterized in that a stopper shaft pin is inserted and interposed in the slit.

[Example] A first example of the hinge for a lift lid according to the present invention is shown below.
This will be explained based on FIGS.

Referring to these figures, the hinge for a lift lid according to the present invention includes a main body 2 for the hinge attached to the upper surface side of a three-dimensional structure 1 such as a copying machine or a cabinet, and a hinge body 2 for the three-dimensional structure 1, such as a copying machine or a cabinet. A hinge fixing body 4 attached to the upper lid 3 side, and a sliding body 5 slidably held via the hinge fixing body 4.
The main structural members are compression type springs 6 and 6' for applying elastic force to the sliding body 5.

The main body 2 has a planar rectangular cam portion 8 that is integrally expanded at the upper end of the support rod 7, and a cam surface 9 is curved from the front surface to the upper surface. , engagement recesses 9a and 9b are provided for engaging and holding sliding pins to be described later, and the support rod 7 can be fitted into a mounting hole (not shown) of the three-dimensional structure and moved up and down by appropriate means. Mounted for support.

The main body 2 may be integrally molded from synthetic resin, but only the support rod 7 may be prepared, or a steel material may be inserted from the support rod 7 into the cam portion 8 to provide sufficient strength. It may also be made to have .

Further, in the left and right direction of the cam part 8, a shaft hole 11 for inserting the support shaft 10 is passed through. It is formed so that it has a minimum value near the front engagement recess 9a and a maximum value near the front engagement recess 9a.

Further, the fixed body 4 is integrally formed of a steel plate or the like, and has an opening 12 in the center of the flat plate portion 4a opening at the base end side. Along the left and right edges of the opening, left and right guide plates 13 and 13' are arranged in a substantially strip-like manner in the front-rear direction, standing upright from the flat plate portion 4a, and the guide plates 1
The base end portion in which the shaft holes 14, 14' of 3 and 13' are provided extends a required length rearward from the base end portion of the flat plate portion 4a.

Further, a lift lid 3 is attached to the flat plate portion 4a of the fixed body 4.
Appropriate number of screw holes 15 used for fixing to...
...is provided.

Further, the sliding body 5 is integrally formed of synthetic resin material or the like into a rectangular flat plate shape that is long in the front and back direction, and its wall thickness is larger than the width of the guide plates 13, 13' in the fixed body 4. The left and right side surfaces 5a, 5a have left and right guide grooves 16, 16' that are long in the front-rear direction and that match the width and wall thickness of the guide plates 13, 13'. It is recessed.

Further, an opening 17 that fits the cam portion 8 of the main body 2 is provided at the center of the base end of the sliding body 5, and the left and right protrusions 18, 18' of the opening 17 are provided with the support shaft. Elongated holes 19, 19' for inserting the opening 10 are provided long in the front and back direction, and the opening 1
7 with one end open, and two spring storage holes 2.
0 and 20' are arranged in parallel in the front-rear direction so as to open the other end at the front end.

Further, a plate-shaped extending portion 22 is provided at the lower front end of the sliding body 5 and is slightly longer than the sliding stroke of the sliding body 5, and a shaft pin 21 is provided at the front end of the sliding body 5. Slit 2 slidably engaged
3 is provided in the left-right direction and long in the front-rear direction.

Further, shaft holes 24 and 24' are provided at the front ends of the left and right guide plates 13 and 13' in the fixed body 4, respectively, and the shaft pin 21 is installed therein, and the spring housing holes 20 and 24 of the sliding body 5 are provided with shaft holes 24 and 24', respectively. With the springs 6, 6' installed inside the respective guide plates 13, 13' and the guide grooves 16, 16', the slit 23 is fitted to the shaft pin 21, thereby making the sliding movement possible. A movable body 5 is disposed between the guide plates 13 and 13' and is housed in the opening 12, and the sliding body 5 is incorporated into the fixed body 4 so as to be slidable in the front and back direction.
The front ends of the springs 6, 6' are supported by a shaft pin 21, thereby preventing them from falling out of the spring housing holes 20, 20'.

Further, with the cam portion 8 of the main body 2 fitted into the opening 17 of the sliding body 5, the guide plate 13,
13', each shaft hole 14, 14', 11 of the cam part 8, and the elongated hole 19, 19' of the sliding body 5, the main body 2, fixed body 4, and sliding body 5 are rotated. A sliding member is movably pivotally mounted and installed internally in the left-right direction of the sliding member 5 so as to slightly protrude from the opening 17 of the sliding member 5, thereby supporting the rear ends of the springs 6, 6'. The pin 25 is configured to come into elastic contact with the cam surface 9 of the main body 2 by a spring force.

Further, the extending portion 22 of the sliding body 5 protrudes forward from the front opening edge of the opening 12 in the fixed body 4, and overlaps the back surface of the flat plate portion 4a in the fixed body 4 to serve as a guide. I am accomplishing it.

In the above configuration, in the closed state shown by solid lines in FIGS. 2 and 4, the sliding body 5 is elastically biased by the spring force in the opposite direction to the cam portion 8 side of the main body 2, that is, in the forward direction. As a result, the sliding pin 25 is engaged with and held in the front end engaging recess 9a of the cam surface 9, and thereby the raised lid 3 is held in the closed state.

When the upper lid 3 is opened from the above-mentioned closed state, the sliding pin 25 slides on the cam surface 9, so the upper lid 3 is opened. When reaching position B, the sliding pin 25 reaches the position where the radius R of the cam surface 9 from the support shaft 10 is the largest, and the lid 3 is raised until it slightly exceeds this position B.
When opened, the radius R of the cam surface 9 from the support shaft 10
The springs 6, 6' are gradually made smaller, so that the sliding pin 25 slides on the cam surface 9, so that the lid 3 changes from the above position B to the opening position. The sliding pin 25 engages with the engaging recess 9b, and the lid is held in the open state at the closed position C shown by the two-dot broken line in the figure.

Further, in the lid opening position C, the sliding body 5 is slid toward the cam portion 8 by the effective stroke of the elongated holes 19 and 19' due to the extension of the springs 6 and 6'.

Also, when closing the upper lid 3, it is closed by the operation opposite to that described above, but at this time, when the upper lid 3 is closed from the opening position C to a position slightly beyond the above-mentioned position B. After that, the lid is automatically closed to the closing position A.

[Effect of idea]

The lift lid hinge according to the present invention has the following effects.

(1) The hinge fixed body having a guide plate is made of a thin plate material, and the sliding body also has a width corresponding to the parallel spacing of both guide plates in the hinge fixed body and a dimension in the height direction of both guide plates. Since it is made of thick-walled flat material with a slightly greater thickness, the combined structure is considerably thinner, making the construction of this part simpler and more compact.

(2) In addition to inserting the support rod of the hinge body into the three-dimensional structure and hiding it, the hinge can also be installed internally by embedding the hinge fixing body and sliding body in the back of the lid. It is easy to use, and the appearance when in use is improved.

In particular, since the combined structure of the hinge fixing body and the sliding body is finished thin, there is no problem of increasing the thickness of the lid for embedding them.

(3) In order to press the cam part of the hinge body,
The sliding body, which is held by the hinge fixing body and receives the force of the spring, is moved by guide means at four locations (on both sides and front and back), such as the guide plate and guide groove, the support shaft and elongated hole, the slit and the stopper shaft pin. Since it is guided, there is no risk of it moving in an incorrect direction, and the sliding movement of the sliding body accompanying the opening/closing operation of the hinge becomes smooth.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of the lift lid hinge according to the present invention, Fig. 2 is a side view showing the usage state of the embodiment, and Fig. 3 is a plan view of the embodiment.
Figures 4 and 5 are - in Figures 3 and 2.
6 and 7 are a plan view and a longitudinal sectional side view of a conventional hinge for a lid in use. 1... Three-dimensional structure, 2... Main body for hinge, 3
...Lifting lid, 4...Hinge fixing body, 4a...
Flat plate part, 5...Sliding body, 6...Compression type spring,
6'... Compression type spring, 7... Support rod, 8... Cam portion, 9... Cam surface, 10... Support shaft, 11... Shaft hole, 12... Opening, 13... Guide plate , 13'
... Guide plate, 14 ... Shaft hole, 14' ... Shaft hole,
16... Guide groove, 16'... Guide groove, 17...
...Opening, 18...Protrusion, 18'...Protrusion,
19... Long hole, 19'... Long hole, 20... Spring storage hole, 20... Spring storage hole, 21... Shaft pin for stopper, 23... Slit, 24... Shaft hole, 24 '...Shaft hole, 21...Sliding pin.

Claims (1)

[Claims for Utility Model Registration] A main body 2 for the hinge attached to the upper surface side of the three-dimensional structure 1, a fixing body 4 for the hinge attached to the top cover 3 side of the three-dimensional structure 1, and a hinge body 4 attached to the upper lid 3 side of the three-dimensional structure 1; A sliding body 5 slidably held via a fixed body 4
and compression type springs 6, 6' for imparting elastic force to the sliding body 5, and the main body 2 for the hinge has a support rod 7 inserted into the three-dimensional structure 1. It has a cam part 8 integrally formed on the upper end of the support rod 7, and a cam surface 9 attached to the upper surface of the cam part 8, and a support shaft 10 is passed through the cam part 8 over both sides thereof. The fixing body 4 for the hinge has a thin flat plate part 4a fixed to the upper lid 3, and a shaft hole 11 is formed for the hinge. It has a recessed opening 12 and a pair of mutually parallel elongated guide plates 13, 13' rising from both side edges of the opening 12,
These guide plates 13, 13' are connected to the support shaft 1 on the base end side.
Shaft holes 14, 14' for passing the shaft pin 21 for the stopper are formed on the tip sides of these guide plates 13, 13'.
4' are formed respectively, and the sliding body 5 has a width corresponding to the parallel spacing of both guide plates 13, 13' in the hinge fixing body 4, and a width corresponding to the parallel spacing of the guide plates 13, 13' in the height direction of the guide plates 13, 13'. It is made of a thick flat material with a thickness slightly exceeding the dimensions of a pair of protrusions 18 adjacent to both sides of the portion 17;
18' are formed relative to each other, and each of the protrusions 18, 18' has elongated holes 19, 1 for relatively engaging with the support shaft 10 over the length direction thereof.
9' is formed, and a pair of guide grooves 16, 16' are formed on both sides of the sliding body 5 for relative engagement with both guide plates 13, 13' of the hinge main body 2,
Spring storage holes 20, 20' for storing compression springs 6, 6' are formed in the thick part of the sliding body 5 extending from the distal end side to the proximal end side, and on the distal end side of the sliding body 5, A slit 23 for inserting the stopper shaft pin 21 intersects with the spring storage holes 20, 20' on the tip side, and is formed long toward the base end side of the slide body 5, and is formed in an opening in the slide body 5. A sliding pin 25 for relatively contacting the cam surface 9 of the hinge main body 2 is provided in the inner part of the portion 17 over both sides of the sliding portion 17, and The shaft hole 11, the proximal shaft holes 14, 14' of the hinge fixing body 4, and the elongated holes 18, 18' of the sliding body 5 are aligned with each other, and the distal shaft hole of the hinge fixing body 4 is aligned with each other. 24, 24' and the slit 23 of the sliding body 5,
Both guide plates 13, 13' of the hinge fixing body 4 and both guide grooves 16, 16' of the sliding body 5 are relatively engaged, and the cam surface 8 of the hinge body 2 is connected to the opening of the sliding body 5. 17, and in order to pivotally connect the hinge body 2, the hinge fixing body 4, and the sliding body 5 to each other, the bases of the hinge fixing body 4, which correspond to each other in the above, End shaft hole 1
4, 14', the long holes 18, 18' of the sliding body 5, and the shaft hole 11 of the hinge body 2, and the sliding pin 25 of the sliding body 5 is inserted into the hinge body 2. Compression type springs 6, 6' are stored in the spring storage holes 20, 20' of the sliding body 5 in order to come into pressure contact with the cam surface 9 of the cam portion 8. It should be noted that the stopper shaft pin 21 is inserted and interposed in the tip side shaft holes 24, 24' and the slit 23 of the hinge fixing body 4, which coincide with each other, in order to hold the hinge in the holes 20, 20'. Features a hinge for the lid.