CN211808524U - Printer with buffer function - Google Patents

Abstract

The utility model provides a printer with buffer function relates to printer technical field, including upper cover and base member, upper cover rear end rotatably pin joint in on the base member, this printer still includes buffer, buffer makes the upper cover orientation when the base member is rotatory, produce the messenger after reaching preset angle the tip is kept away from before the upper cover the buffer power of base member is in order to reduce the speed of the relative base member of upper cover lid when closing. Rotatable pin joint of rear end through the upper cover is on the base member, and still be equipped with buffer between it for when the upper cover is carried towards the base member rotation, reach and produce the buffer power that makes the upper cover front end keep away from the base member after presetting the angle, the upper cover is towards the relative buffering of closed direction and has the resistance, in order to reduce the speed of relative base member when the upper cover lid closes, avoided the direct lid of upper cover to close and make the user not react on the base member relatively quick-closure, its finger presss from both sides and causes the damage opening and shutting the front end.

Description

Printer with buffer function

Technical Field

The utility model relates to a printer technical field particularly, relates to a printer with buffer function.

Background

The existing thermal printers are widely used and generally comprise a cavity for accommodating a paper roll and upper and lower cover bodies. The thermal printer adopts the thermal printing scroll, and the scroll is used up the back, needs the user to open the lid and more renews the scroll, so convenience and the reliability that the printer lid opened and shut are vital.

In the market, the cover body opening and closing mechanism adopts a rotatable pin joint arrangement between the cover bodies for pursuing simple structure and low cost, and the upper cover and the base body are directly hinged. For example, in the chinese publication No. CN207274193U, the cover of the printer is opened by rotating the upper cover relative to the lower cover, so that the thermal transfer ribbon mechanism can be rotated to open, the thermal transfer ribbon mechanism and the paper roll supporting mechanism inside the printer are exposed, the thermal transfer ribbon or the paper roll can be conveniently replaced, and when the upper cover is closed, the thermal transfer ribbon mechanism returns to the initial position along with the upper cover. Its simple structure, the operation of being convenient for printer is opened once and can be realized changing paper or carbon ribbon, has improved user's availability factor.

However, the cover bodies are directly hinged to rotate relatively, and the printer is opened or closed correspondingly, so that the opening and closing of the printer cover body are simpler and more convenient, but certain limitations are also caused. The lid is at the in-process that opens and shuts, and the direct press between upper cover and the base member is closed, causes the clamp injury to user's finger easily to, there is not obvious damping sense in the in-process that opens and shuts, the user can not rely on the change of the dynamics that the lid receives to judge the active position of lid.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a printer with buffer function aims at improving the problem that current printer upper cover and the direct articulated setting between the base member lead to the lid to close and cause the clamp to hinder.

The utility model adopts the following scheme:

the utility model provides a printer with buffer function, includes upper cover and base member, the upper cover rear end rotatably pin joint in on the base member, this printer still includes buffer, buffer makes the upper cover orientation when the base member is rotatory, produce after reaching preset angle and make the upper cover front end portion is kept away from the speed of relative base member when the upper cover lid closes in order to reduce.

As a further improvement, the preset angle is greater than 5 degrees.

As a further refinement, the preset angle is not less than 10 degrees and not more than 45 degrees.

As a further improvement, the buffer device comprises an elastic piece for preventing the upper cover from rotating and covering towards the base body.

As a further improvement, the elastic member is provided on one of the upper cover and the base, and when the upper cover rotates toward the base, the elastic member abuts against the other to reduce the speed of the upper cover relative to the base when the upper cover closes and approaches the base.

As a further improvement, the elastic part is a torsion spring which is arranged on the pivot shaft of the upper cover and the base body.

As a further improvement, an L-shaped support arm is arranged on the upper cover, an accommodating cavity is arranged on the base body, and the support arm can be rotatably arranged in the accommodating cavity around a pin joint shaft through a pin shaft.

As a further improvement, a notch is formed in the outer wall of the accommodating cavity corresponding to the position of the pivot shaft, so that the support arm can be conveniently installed on the base body through the pivot shaft.

As a further improvement, the buffer device comprises a spring and a buffer head which can be matched with the spring in a telescopic mode, when the upper cover is closed towards the base body in a rotating mode, the buffer head generates buffer force enabling the front end portion of the upper cover to be far away from the base body so as to reduce the speed of the upper cover relative to the base body when the upper cover is closed.

As a further improvement, the locking device further comprises an unlocking structure, after the unlocking structure releases the cover closing and locking state of the upper cover, the upper cover rotates backwards to be opened, and the buffer device prevents the rear end part of the upper cover from impacting the base body to prevent the base body from being damaged in the opening process of the upper cover.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

the utility model provides a printer with buffer function, the rotatable pin joint of rear end through the upper cover is on the base member, still be equipped with buffer between and, make the upper cover carry when rotatory towards the base member, reach and produce the buffer power that makes the upper cover front end keep away from the base member after presetting the angle, the upper cover cushions relatively and has the resistance towards closed direction, speed relative base member when closing with the reduction upper cover lid, avoided the direct lid of upper cover to close the relative quick closure on the base member and make the user not react, its finger presss from both sides and causes the damage opening and closing the front end. Simultaneously, provide the upper cover through being equipped with buffer and open and shut the in-process buffer resistance for in the rotation lid of printer closes the in-process, the user can be according to its change to the upper cover in the pressing force degree of predetermineeing the angle, in order to master the relative position of upper cover, corresponds the reaction of judging whether need to make the shrink finger in order to avoid pressing from both sides hindering the finger, increases the operation when covering the upper cover simultaneously and feels.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a printer according to an embodiment of the present invention, in which an oblique arrow indicates a direction in which a user presses an upper cover to close;

fig. 2 is a schematic structural diagram of the printer in the closing process of the present invention, wherein an upward arrow indicates the direction of the buffer force of the buffer device to the upper cover;

fig. 3 is a disassembled schematic view of the printer according to the embodiment of the present invention;

fig. 4 is a partially disassembled schematic view of the printer of the embodiment of the present invention at other viewing angles, wherein the bottom shell of the base is hidden for better illustration;

FIG. 5 is a schematic structural view of the upper cover of FIG. 4, with the top shell of the upper cover hidden for better illustration;

FIG. 6 is a schematic view of the structure of FIG. 4 from another perspective;

fig. 7 is a schematic structural diagram of a printer according to another embodiment of the present invention.

Fig. 8 is a cross-sectional view of a printer according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of the printer according to the embodiment of the present invention at another viewing angle.

Fig. 10 is a schematic diagram of a maximum angle structure after the printer according to the embodiment of the present invention is opened.

Icon: 1-covering the upper cover; 11-a support arm; 111-routing channels; 2-a substrate; 21-a clamping block; 22-a containment chamber; 23-a notch; 3-an elastic member; 4-a pivot shaft; 5-a pin shaft; 6-a buffer head; 7-an accommodating cavity; 8-a paper feed path; 9-a paper outlet; 10-a paper cutter.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1 to 3, the present embodiment provides a printer with a buffering function, which includes an upper cover 1 and a base body 2. Wherein, the back end of the upper cover 1 is rotatably pivoted on the base body 2. The printer further comprises a buffering device, when the buffering device enables the upper cover 1 to rotate towards the base body 2, the buffering force which enables the front end part of the upper cover 1 to be far away from the base body 2 is generated after a preset angle is reached, so that the speed of the upper cover 1 relative to the base body 2 when the upper cover 1 covers and closes the base body 2 is reduced. The upper cover 1 rotates relatively along the one end of its rear end and 2 looks pin joints of base member, corresponds and makes the front end portion of upper cover 1 be close to the butt relatively to base member 2 for the lid closes and closes the printer and realize printing the function, or keep away from 2 positions of base member relatively and change carbon ribbon or scroll in order to uncap. The upper cover 1 is relatively buffered towards the opening and closing direction through the buffer device and has resistance, so that the speed of the upper cover 1 relative to the base body 2 when the upper cover 1 is covered is reduced, and the phenomenon that a user cannot respond to the situation that fingers of the user are clamped at the front end of the opening and closing part and are damaged due to the fact that the upper cover 1 is directly covered on the base body 2 to be closed relatively quickly is avoided.

Specifically, buffer provides 1 lid of upper cover and closes the resistance of in-process, and when upper cover 1 rotated towards base member 2, upper cover 1 produced the cushion effect after reaching preset angle for 1 front end of upper cover receives the resistance of keeping away from base member 2 direction towards, leads to the closed speed of upper cover 1 to slow down, needs the user to continue to use external force this moment, makes its lid close on base member 2 in order to press the upper cover, realizes that the lid of printer closes. When the included angle between upper cover 1 and the base 2 does not reach the preset angle, upper cover 1 rotates relative to base body 2, and the buffering power is not generated at this moment, so that upper cover 1 directly rotates in a hinged mode between base body 2 under the action of external force and self gravity, upper cover 1 is not influenced by the buffering power of a buffering device, and the rotating speed is relatively high. When reaching or being less than preset angle, upper cover 1 rotates for base 2, and buffer provides the cushion effect that makes 1 front end of upper cover keep away from base member 2 this moment for upper cover 1 is under the influence of cushion effect, and the slew velocity slows down and tends to zero even, makes the user have sufficient time to react, in order to avoid the finger to be hindered by the clamp. And, the contained angle of upper cover 2 relative base 2 is in presetting the angle within range for upper cover 2 receives the buffer resistance at rotatory lid in-process, and the user can be according to its change to upper cover 1 the pressing force degree in presetting the angle, in order to master the relative position of upper cover 1, and whether the corresponding judgement need be made the reaction of contracting the finger in order to avoid pressing from both sides hindering the finger, increases the operation when covering upper cover 1 simultaneously and feels.

Wherein, the preset angle of the upper cover 1 relative to the base body 2 for generating the buffer resistance is larger than 5 degrees. The upper cover 1 rotates relative to the base body 2, when the included angle alpha between the upper cover 1 and the base body 2 is larger than a preset angle, the buffer device does not provide buffer resistance temporarily, the upper cover 1 can be quickly pivoted with the base body 2, and time and labor are saved. When the included angle α between the upper cover 1 and the base 2 is smaller than the preset angle, the buffer device generates buffer resistance to make the front end of the upper cover 1 far away from the base 2, and at this time, the user needs to continuously press the upper cover 1 to cover the base 2, so as to close the printer. The preset angle is set to be larger than 5 degrees, when the included angle between the upper cover 1 and the base body 2 is 5 degrees, fingers are placed between the front ends of the upper cover 1 and the base body 2 and cannot be damaged by clamping, and when the included angle is at a critical point of 5 degrees, the upper cover 1 is guaranteed to be more efficient and stable in the rotating and covering process.

Preferably, the preset angle is not less than 10 degrees and not more than 45 degrees. In this embodiment, one of the preset angles is preferably 10 degrees, so that when a finger of a user is placed between the upper cover 1 and the base 2 at an included angle larger than 10 degrees, a sufficient gap is left between the finger and the two cover plates, an avoidance time for the user to react is reserved, and the phenomenon that the covering speed is too high to cause hand clamping is avoided. And another preferred preset angle is set to be 50 degrees, so that the upper cover 1 is approximately at an angle smaller than the semi-open-close state of the printer, the upper cover 1 can be subjected to the buffer resistance, the whole process of the buffer resistance is less compared with the process of not being subjected to the buffer resistance, the efficiency of the covering process is higher, and meanwhile, enough reaction time is reserved for a user. It should be noted that, in other embodiments, the preset angle is preferably 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, and the like, which is not described herein again.

Referring to fig. 3, 4, 5 and 6, the buffering device includes an elastic member 3 for preventing the upper cover 1 from rotating and covering towards the base 2, and the elastic member 3 is disposed on one of the upper cover 1 or the base 2. When the cover 1 is rotated toward the base 2, the elastic members 3 are abutted between the upper bases to reduce the speed of the cover 1 with respect to the base 2 when the cover is closed. Preferably, the elastic member 3 is a torsion spring. The torsion spring is arranged on a pivot shaft 4 at the hinged position of the upper cover 1 and the base body 2. An L-shaped support arm 11 is arranged on the upper cover 1, and one end of the support arm 11 is hinged with the base body 2 through a pivot shaft 4. One end of the torsion spring is abutted to the support arm 11, and the other end is accommodated and fixed in the clamping block 21 of the base body 2. When the upper cover 1 is in a closed state, two ends of the torsion spring are twisted relatively to store force so as to provide elastic force for the upper cover 1 to be far away from the base body 2. When the upper cover 1 is opened, the torsion force is relatively released by the torsion spring, so that the upper cover 1 is relatively bounced to be opened, at the moment, the torsion spring is abutted to one end of the support arm 11 and is relatively separated from the support arm 11, when the upper cover 1 drives the support arm 11 to rotate along the pivot shaft 4 to cover, one end of the torsion spring is abutted to the support arm 11, and at the moment, the included angle between the upper cover 1 and the base body 2 is the preset angle.

Specifically, the base body 2 is provided with a containing cavity 22 for containing the support arm 11, and the support arm 11 is rotatably mounted in the containing cavity 22 around the pivot shaft 4 through the pin 5, so that the support arm 11 rotates along the pivot shaft 4 in the containing cavity 22 to correspond to the open-close printer. Wherein, the cavity wall of the accommodating cavity 22 is provided with a notch 23 corresponding to the position of the pivot shaft 4, which is convenient for the support arm 11 to be mounted on the base body 2 through the pivot shaft 4, thereby being beneficial to the user to rapidly disassemble and replace the pin shaft 5 or the torsion spring, and realizing the elastic rotary assembly of the support arm 11 on the base body 2.

Furthermore, the cover 1 has two arms 11, by means of which two arms 11 the cover 1 is connected to the base body 2 in a front hinged manner. One of the support arms 11 is provided with a torsion spring to be twisted and abutted between the support arm 11 and the base body 2 to provide elastic buffering force for the upper cover 1. The other arm 11 is provided with a wiring channel 111, and wires in a circuit system of the printer are guided to between the electric element and the circuit board along the channel in a penetrating way, so that compact arrangement is realized.

Referring to fig. 7, in another embodiment, the damping device includes a spring and a damping head 6 telescopically engaged with the spring. When the upper cover 1 is rotated toward the base body 2, the cushion head 6 generates a cushion force for moving the front end portion of the upper cover 1 away from the base body 2 to reduce the speed of the upper cover 1 relative to the base body 2 when the upper cover 1 is closed. Wherein, buffer locates on 2 front end of base member, 1 lower terminal surface both sides position in the upper cover is arranged in to buffering head 6 protrusion, the buffering head 6 of protrusion setting makes the upper cover 1 lid fashionable, the relative butt of buffering head 6 is on the terminal surface of base member 2, close with the lid that hinders upper cover 1 relatively, make the lid speed of closing slow down relatively, when 2 rotations in order to realize upper cover 1 orientation base member, produce the buffering power that makes 1 front end of upper cover keep away from base member 2 after reaching preset angle in order to reduce the speed of 1 lid relatively base member 2 when closing of upper cover.

When the lid closes, the buffer head 6 contracts to the upper cover 1 in relative under the effect of spring in with the up end looks butt of base member 2, promotion buffer head 6, realizes the closure of going up the base member, and closed back buffer head 6 under the squeezing action of spring with lower terminal surface elasticity butt, open for the elasticity of upper cover 1 and provide elasticity. And the buffer head 6 is arranged on the upper cover 1 in a protruding way and is just contacted with the end surface of the base body 2, and the included angle alpha between the upper cover 1 and the base body 2 is a preset angle, so that the condition of covering and clamping hands is avoided.

It can be understood that, also can be through being equipped with the magnetic part of mutual repulsion respectively at the end that opens and shuts of upper cover 1 and base member 2, make upper cover 1 when the lid closes, the magnetic part that is located upper cover 1 is close to the magnetic part that is located base member 2, make two produce the repulsion force, lead to the speed that upper cover 1 is closed to slow down, it realizes the lid to close the printer to need the user to use bigger dynamics, and then react according to dynamics change, avoid the tong, upper base member repeals when opening and shutting simultaneously, increase the operation when covering and feel and the bounceing when opening and shutting open.

Referring to fig. 8 and 9, in a state where the upper cover 1 is covered with the base body 2, the bottom surface of the upper cover 1 and the top surface of the base body 2 form a printing paper accommodating chamber 7, a paper feeding path 8 and a paper output opening 9 from back to front, and a paper cutter 10 is disposed on the paper output opening 9. When the upper cover 1 is buckled with the base body 2, the bottom surface of the upper cover 1 is matched with the top surface of the base body 2, and an accommodating cavity 7 for accommodating roll paper, a paper feeding passage 8 and a printing paper outlet 9 are sequentially formed from back to front. The housing chamber 7 is used for placing the roll paper and limiting the roll paper in the chamber to roll relatively when the roll paper conveys printing paper along the paper feeding channel 8. The bottom surface of the upper cover 1 and the top surface of the base body 2 form a paper feeding channel 8 when being covered, and the paper feeding channel is used for bearing and conveying printing paper. Form above-mentioned exit slot 9 between 1 front end of lid and the 2 terminal surfaces of the just right base member of the body of the cover, beat printing paper and print the completion back and transmit to the printer outside via beating the printing paper export, convenience of customers takes the printing paper after printing, and compact cooperation between each part improves and prints efficiency. Be equipped with paper cutter 10 on exit slot 9, paper cutter 10 is rectangular cockscomb structure, and is located the top of exit slot, and the user of being convenient for will print the printing paper after printing and upwards cut printing paper along paper cutter 10 directions for the separation prints the printing paper after printing.

Referring to fig. 10, the locking device further includes an unlocking structure, after the unlocking structure releases the covering and locking state of the upper cover 1, the upper cover 1 rotates backwards to be opened, and the buffer device prevents the rear end of the upper cover 1 from impacting the base 2 to prevent the base 2 from being damaged in the opening process of the upper cover 1. Specifically, at a moment when the unlocking structure is released, the elastic force of the elastic member 3 is suddenly released, and a large rotation is generated to open the upper cover 1 to the maximum state, so that the rear end portion of the upper cover 1 collides with the base body 2, and the buffer device can buffer the release of the elastic force 3 to reach a preset maximum angle of 45 degrees, thereby preventing direct collision of the base body 2.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.

Claims (10)

1. The utility model provides a printer with buffer function, includes upper cover and base member, the upper cover rear end rotatably pin joint in on the base member, its characterized in that, this printer still include buffer, buffer makes the upper cover orientation when the base member lid closes the rotation, produce after reaching preset angle and make the upper cover front end is kept away from the buffer power of base member is in order to reduce when the upper cover lid closes relatively the speed of base member.

2. The printer with a buffering function according to claim 1, wherein the preset angle is greater than 5 degrees.

3. The printer with a buffering function according to claim 2, wherein the predetermined angle is not less than 10 degrees and not more than 45 degrees.

4. The printer of claim 1, wherein the damping means comprises an elastic member for damping the cover from rotating toward the base.

5. The printer of claim 4, wherein the elastic member is provided on one of the upper cover and the base, and when the upper cover rotates toward the base, the elastic member abuts against the other to reduce a speed of the upper cover with respect to the base when the upper cover is closed.

6. The printer of claim 4, wherein the elastic member is a torsion spring, and the torsion spring is disposed on the pivot shaft of the upper cover and the base.

7. The printer of claim 6, wherein the upper cover is provided with an L-shaped arm, the base is provided with an accommodating cavity, and the arm is rotatably mounted in the accommodating cavity around the pivot shaft through a pin.

8. The printer with the buffering function as claimed in claim 7, wherein a notch is formed on an outer wall of the accommodating chamber corresponding to the pivot shaft for facilitating the mounting of the arm on the base body through the pivot shaft.

9. The printer of claim 1, wherein the buffer device comprises a spring and a buffer head which can be extended and retracted in cooperation with the spring, and during the rotation of the upper cover toward the base body, the buffer head generates a buffer force which makes the front end of the upper cover away from the base body so as to reduce the speed of the upper cover relative to the base body during the closing of the upper cover.

10. The printer with the buffering function according to claim 1, further comprising an unlocking structure, wherein after the unlocking structure releases the locking state of the cover, the cover is rotated backwards to be opened, and the buffering device prevents the rear end of the cover from impacting the base to prevent the base from being damaged during the opening process of the cover.

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