CN205613051U - Double -end connecting pin and building blocks subassembly thereof - Google Patents
Double -end connecting pin and building blocks subassembly thereof Download PDFInfo
- Publication number
- CN205613051U CN205613051U CN201620232977.0U CN201620232977U CN205613051U CN 205613051 U CN205613051 U CN 205613051U CN 201620232977 U CN201620232977 U CN 201620232977U CN 205613051 U CN205613051 U CN 205613051U
- Authority
- CN
- China
- Prior art keywords
- connecting shaft
- pin
- shaft
- double end
- along
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Toys (AREA)
Abstract
The utility model provides a double -end connecting pin, including first connecting axle and second connecting axle, first connecting axle is connected with the second connecting axle, and first connecting axle is located same the central axis with the second connecting axle, first connecting axle is cylindrical round pin axle, the periphery lateral wall of second connecting axle is the arc surface, at least, form the spacing recess that its axial of an edge set up on the arc surface. The utility model provides a connecting axle of double -end connecting pin through being provided with two different functions can be realized the fixed connection of one end and the rotation of the other end and connect, satisfies the connection request between the standard building blocks spare of different connecting holes.
Description
Technical field
This utility model relates to a kind of double end connecting pin and toy building set thereof.
Background technology
Modular construction, mainly by splicing different constructional pieces, to form the one of different shape
Plant combined structure, beneficially culture space imaginative power and creativity.In existing modular construction, different
Compound mode between constructional pieces is varied, and wherein having a class is to carry out two or more by bearing pin
The connection of constructional pieces, is provided with connecting hole on constructional pieces, realizes connecting through connecting hole by bearing pin.
Existing pin shaft structure is relatively simple, mostly is the setting of two symmetrical configuration, with to identical connecting hole mark
Accurate constructional pieces is attached fixing, and function is the most single；But it is special sometimes for some in building blocks connect
Connected mode, ratio is if desired for being relatively fixed by the constructional pieces of pin shaft structure with side, and pin shaft structure is again simultaneously
Can need to relatively rotate with the constructional pieces of opposite side, in this case, traditional symmetrical pin axle construction
The installation requirement of this function cannot be applicable to, affect the connection effect between constructional pieces；On the other hand, when existing
After some bearing pins are connected combination with constructional pieces, the most difficult when needing to dismantle, easily cause bearing pin and lose.
Utility model content
For above-mentioned problems of the prior art, this utility model provide a kind of double end connecting pin and
Toy building set, this double end connecting pin is provided by the connecting shaft of two difference in functionalitys, it is possible to realize one end
Fixing connection is rotationally connected with the other end, meets the connection request between the constructional pieces of different connecting holes standard.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is as follows:
A kind of double end connecting pin is provided, including the first connecting shaft (2) and the second connecting shaft (1), described first
Connecting shaft (2) is connected with the second connecting shaft (1), and the first connecting shaft (2) and the second connecting shaft (1)
It is positioned on same central axis；
Described first connecting shaft (2) is cylindrical bearing pin；
The outer peripheral sidewall of described second connecting shaft (1) is arc surface (11), and described arc surface (11) is up to
Form one less along the axially arranged limited impression (12) of the second connecting shaft (1).
Further, the quantity of described limited impression (12) is multiple, the plurality of limited impression (12)
Respectively along the circumference matrix arrangement ringwise of the second connecting shaft (1).
Further, described limited impression (12) is interior right angle groove.
Further, the end of described second connecting shaft (1) is rounding structure.
Further, the junction of described first connecting shaft (2) and the second connecting shaft (1) is provided with spacing
The shaft shoulder (3), the described spacing shaft shoulder (3) is protruding around the closed circle of the first connecting shaft (2) circumference.
Further, the outer peripheral sidewall of described first connecting shaft (2) axially arranged there is raised line (22) along it.
Further, the end of described first connecting shaft (2) is circumferentially provided with defining flange (21) along it.
Further, the end face of described first connecting shaft (2) all has end face groove (23), described end face
Groove (23) extends along the end face of the first connecting shaft (2) to the internal direction of the first connecting shaft (2), described
End face groove (23) is along the outer peripheral sidewall extending radially through the first connecting shaft (2) of the first connecting shaft (2).
Further, in described first connecting shaft (2), have centre bore (24) along its center axis direction,
Described centre bore (24) connects with described end face groove (23).
A kind of toy building set, connects including the first constructional pieces, the second constructional pieces and a kind of double end as above
Pin, described first constructional pieces is provided with the circular connecting hole matched with described first connecting shaft (2), institute
State and on the second constructional pieces, be provided with the flower-shape connecting hole matched with described second connecting shaft (1).
The two ends of connecting pin are arranged respectively to the first connecting shaft and the second connecting shaft by this utility model, and described
One connecting shaft is cylindrical bearing pin, fixes for being connected with the constructional pieces of side, and the first connecting shaft and building blocks
For being rotatably connected between part；It is provided with limited impression, by limit in the outer peripheral sidewall of described second connecting shaft
Position groove coordinates with the flower-shape connecting hole of constructional pieces to circumferentially rotate the second connecting shaft and limits, it is achieved
Fix between second connecting shaft and constructional pieces and be connected, thus meet between the constructional pieces of different connecting holes standard
Connect；The connective stability using the toy building set of this connecting pin is high, can realize the demand that various shape connects.
Meanwhile, the second connecting shaft the most easily splits from it with the connection of the second constructional pieces, and after fractionation, second even
First connecting shaft can be separated with the first constructional pieces by spindle as the grasping part of this double end connecting pin, convenient long-pending
The dismounting of wood assembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of double end connecting pin that this utility model provides；
Fig. 2 is the front view of the double end connecting pin that this utility model provides；
Fig. 3 is the profile of the double end connecting pin that this utility model provides
Reference in Figure of description is as follows:
1, the second connecting shaft；11, arc surface；12, limited impression；2, the first connecting shaft；21, spacing
Flange；22, raised line；23, end face groove；24, centre bore；3, the spacing shaft shoulder.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer,
Below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that herein
Described specific embodiment, only in order to explain this utility model, is not used to limit this utility model.
In description of the present utility model, it is to be understood that term " axially, " circumferential ", " radially ", " length
Degree ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or pass, position
System, is for only for ease of and describes this utility model and simplify description rather than instruction or the device of hint indication
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of utility model.In description of the present utility model, except as otherwise noted, " multiple " are meant that two
Individual or two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, art
Language " is installed ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be detachable
Connect, or be integrally connected；Can be to be mechanically connected；Can be to be joined directly together, it is also possible to by middle matchmaker
Jie is indirectly connected to, and can be the connection of two element internals.For the ordinary skill in the art,
Above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
See shown in Fig. 1 and Fig. 2, the utility model discloses a kind of double end connecting pin, be used for realizing difference
Connection between constructional pieces, including the first connecting shaft 2 and the second connecting shaft 1, described first connecting shaft 2 and
Two connecting shafts 1 connect, and the first connecting shaft 2 and the second connecting shaft 1 are positioned on same central axis；
Described first connecting shaft 2 is cylindrical bearing pin；Described first connecting shaft 2 is for the constructional pieces with side
Connect fixing, and for being rotatably connected between the first connecting shaft 2 and constructional pieces；
The outer peripheral sidewall of described second connecting shaft 1 is arc surface 11, and described arc surface 11 at least forms one
Along the limited impression 12 that the second connecting shaft 1 is axially arranged, it is connected with the flower-shape of constructional pieces by limited impression 12
Hole coordinates and can limit the second circumferentially rotating of connecting shaft 1, it is achieved the second connecting shaft 1 and constructional pieces it
Between fixing connect.
Preferably employ the plastic material material of main part as double end connecting pin.
Described limited impression 12 is axially arranged along the outer peripheral sidewall surface of the second connecting shaft 1, and its two ends are prolonged respectively
Extend end face and the junction of first connecting shaft the 2, second connecting shaft 1 of the second connecting shaft 1.
The quantity of described limited impression 12 is two or more, respectively along the second connecting shaft 1 circumference in
Ring quasi array arranges.
Described limited impression 12 is interior right angle groove, it should be noted that described interior right angle groove is only this reality
By novel one preferred embodiment, other realize the groove structure of function of the same race, such as U-shaped groove etc.,
Also should be included in protection domain of the present utility model.
In the present embodiment, the quantity of described limited impression 12 is 4, respectively along the week of the second connecting shaft 1
To matrix arrangement ringwise, the cross section of described second connecting shaft 1 is cross, and the periphery of star section
For arc-shaped edges.
The end of described second connecting shaft 1 is rounding structure.
The junction of described first connecting shaft 2 and the second connecting shaft 1 is provided with the spacing shaft shoulder 3, when described first
When connecting shaft 2 and the second connecting shaft 1 are connected from different constructional pieces respectively, one end of constructional pieces
Being resisted against on the described spacing shaft shoulder 3, the described spacing shaft shoulder 3 limits the constructional pieces axial displacement on connecting pin,
Avoid this double end connecting pin directly through the connecting hole on constructional pieces.
The described spacing shaft shoulder 3 is protruding, by the spacing shaft shoulder 3 around the closed circle of the first connecting shaft 2 circumference
It is arranged to closed circular ring-type, to improve the bulk strength of connecting shaft, it is possible to preferably bear constructional pieces and connecting
Moment of torsion at axle；Another embodiment is: be provided with, on the spacing shaft shoulder 3, the face of cutting, described in cut position, face
In the spacing shaft shoulder 3 side.
In the present embodiment, the outer peripheral sidewall of described first connecting shaft 2 axially arranged there is raised line 22 along it,
Described raised line 22 is structure as a whole with the first connecting shaft 2, and raised line 22 can be by with the first connecting shaft 2 integrally
Injection mo(u)lding, under this is arranged, the frictional force of described raised line 22 and circular connecting hole inwall and the elasticity of compression by
First material of connecting shaft 2 own determines.It should be noted that described raised line 22 can also be outside
Structure, fits in the outer peripheral sidewall of the first connecting shaft 2 by fixing for described raised line 22, described raised line 22 with
Frictional force and the elasticity of compression of circular connecting hole inwall are determined by himself material.
When this connecting pin is inserted in the connecting hole being matched therewith, the outer peripheral sidewall of described connecting pin is passed through
Raised line 22 directly contacts with the inwall of connecting hole, the friction that raised line 22 produces when with connecting hole contact internal walls
Power, sets suitable damping due to rotation i.e. can to the rotation between connecting pin and connecting hole, the most not affect connection
The installation of axle；On the other hand, this connected mode has certain regulating power, and the processing of single raised line 22 is by mistake
Difference can be offset by the miniature deformation of other raised lines 22, and the connecting pin relatively low for cross section circularity also can lead to
Crossing this connected mode to be configured, improve the error permissible value between connecting pin and connecting hole, it is right to reduce
Requirement in connecting pin outer peripheral sidewall machining accuracy.
In the present embodiment, the quantity of described raised line 22 is two or more, and described raised line 22 is along even
The circumference of spindle matrix arrangement ringwise.
In the present embodiment, the quantity of described raised line 22 is two or more, and described raised line 22 is along even
The axial equi-spaced apart of spindle is arranged, with an a length of full-length of a connecting hole, described first axle
The integral multiple of a length of full-length of section and the second shaft part, then raised line 22 is less than a full-length, and convex
Bar 22 is positioned at the position of two full-length handing-over of connecting shaft, is positioned at connecting shaft end or the spacing shaft shoulder 3 position
The length of raised line 22 shorten accordingly.
Being uniformly distributed in the outer peripheral sidewall of the first connecting shaft 2 by raised line 22, the beneficially first connecting shaft 2 exists
Stress balance in all directions.
The end of described first connecting shaft 2 is circumferentially provided with defining flange 21 along it, and described defining flange 21 is
Ring-type protrusion jaggy, the relative diameter of described defining flange 21 is carried in the outer peripheral sidewall of the first connecting shaft 2
The diameter of circular connecting hole more than on described first connecting shaft 2 and constructional pieces, when the first connecting shaft 2 and building blocks
When part coordinates, the end of the first connecting shaft 2 is through circular connecting hole, simultaneously by the first connecting shaft 2 end
Defining flange 21 protrude towards the outside, be fastened on the opposite side of circular connecting hole, with the described spacing shaft shoulder 3
Coordinate and constructional pieces carried out axial spacing of the first connecting shaft 2.
The end of described first connecting shaft 2 entering circular connecting hole when, straight due to defining flange 21
Footpath, more than the diameter of circular connecting hole, needs the end making the first connecting shaft 2 to produce flexure, so that limit convex
Edge 21 can pass through circular connecting hole, and in order to realize the flexure of the first connecting shaft 2 end, this practicality is new
Type all has end face groove 23 on the end face of described first connecting shaft 2, and described end face groove 23 is along the first connecting shaft
The end face of 2 extends to the internal direction of the first connecting shaft 2, and described end face groove 23 is along the footpath of the first connecting shaft 2
To running through the outer peripheral sidewall of the first connecting shaft 2, the most described end face groove 23 is U-lag, and end face groove 23 exists
The central axis being projected through described first connecting shaft 2 on the end face of the first connecting shaft 2, works as defining flange
During 21 stress, the first connecting shaft 2 end inward deflection of end face groove 23 both sides, end face groove 23 pressurized reduces,
First connecting shaft 2 end is entered in circular connecting hole.
As it is shown on figure 3, have centre bore 24 along its center axis direction in described first connecting shaft 2, described
Centre bore 24 extends to the described spacing shaft shoulder 3 position, described end face groove from the end face of described first connecting shaft 2
23 connect with centre bore 24.The purpose arranging centre bore 24 is the weight in order to reduce described double end connecting pin
And material cost, further increase the flexural property of the first connecting shaft 2 simultaneously.
The invention also discloses a kind of toy building set, including the first constructional pieces, the second constructional pieces and as above
Described a kind of double end connecting pin, described first constructional pieces is provided with and matches with described first connecting shaft 2
Circular connecting hole, described second constructional pieces is provided with the flower-shape that matches with described second connecting shaft 1 even
Connect hole.
The structure of the circular connecting hole corresponding with described first connecting shaft 2 is: described circular connecting hole is cylinder
Shape through hole, the length of described circular connecting hole is equal with the length of the first connecting shaft 2, described circular connecting hole
Two ends be respectively arranged with circular groove, the diameter of described circular groove is more than the diameter of circular connecting hole, institute
The effect stating circular groove is the accommodating described spacing shaft shoulder 3 and described defining flange 21, reaches spacing effect
Really；When the first connecting shaft 2 coordinates with circular connecting hole, the first connecting shaft 2 and circular connecting hole is made to be positioned at
On same axis, described first connecting shaft 2 is inserted from one end of circular connecting hole, the end of the first connecting shaft 2
Portion is bent by circular connecting hole inwall extruding, when the defining flange 21 of the first connecting shaft 2 end arrives circle
Time at the circular groove of shape connecting hole one end, defining flange 21 expands to coordinate to produce with circular groove and is engaged effect,
Defining flange 21 in first connecting shaft 2 is positioned in the circular groove of the circular connecting hole other end.
The structure of the flower-shape connecting hole corresponding with described second connecting shaft 1 is: described flower-shape connecting hole is cylinder
Shape through hole, the length of described flower-shape connecting hole is equal with the length of the second connecting shaft 1, at flower-shape connecting hole
Axially arranged have a right angle raised item along it on inwall, the quantity of described right angle raised item with in the second connecting shaft 1
The quantity of limited impression 12 is consistent, and described right angle raised item is along the inwall matrix arrangement ringwise of cylindrical hole；
When the second connecting shaft 1 coordinates with flower-shape connecting hole, the second connecting shaft 1 is made to be positioned at same with flower-shape connecting hole
On axis, the limited impression 12 in the second connecting shaft 1 is corresponding with the raised item position, right angle in flower-shape connecting hole,
Described second connecting shaft 1 is inserted from one end of flower-shape connecting hole, fills flower-shape connecting hole, described limited impression
12 and the engaging of right angle raised item, thus limit the rotation on its circumferencial direction of second connecting shaft 1, second even
Spacing setting is not had, i.e. with the second building blocks of flower-shape connecting hole between end and the flower-shape connecting hole of spindle 1
Part can depart from fractionation from the axial direction of the second connecting shaft 1, and after fractionation, the second connecting shaft 1 can be as this pair
The grasping part of head connecting pin, separates the first connecting shaft 2 with the first constructional pieces, facilitates the dismounting of toy building set.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should
Within being included in protection domain of the present utility model.
Claims (10)
1. a double end connecting pin, it is characterised in that include the first connecting shaft (2) and the second connecting shaft (1),
Described first connecting shaft (2) is connected with the second connecting shaft (1), and the first connecting shaft (2) is connected with second
Axle (1) is positioned on same central axis；
Described first connecting shaft (2) is cylindrical bearing pin；
The outer peripheral sidewall of described second connecting shaft (1) is arc surface (11), and described arc surface (11) is up to
Form one less along the axially arranged limited impression (12) of the second connecting shaft (1).
A kind of double end connecting pin the most according to claim 1, it is characterised in that described limited impression (12)
Quantity be multiple, the plurality of limited impression (12) is along the circumference matrix ringwise of the second connecting shaft (1)
Arrangement.
A kind of double end connecting pin the most according to claim 1 and 2, it is characterised in that described spacing recessed
Groove (12) is interior right angle groove.
A kind of double end connecting pin the most according to claim 1, it is characterised in that described second connecting shaft
(1) end is rounding structure.
A kind of double end connecting pin the most according to claim 1, it is characterised in that described first connecting shaft
(2) junction of and the second connecting shaft (1) is provided with the spacing shaft shoulder (3), and the described spacing shaft shoulder (3) is
Protruding around the closed circle of the first connecting shaft (2) circumference.
A kind of double end connecting pin the most according to claim 1, it is characterised in that described first connecting shaft
(2) axially arranged there is raised line (22) along it in outer peripheral sidewall.
A kind of double end connecting pin the most according to claim 1, it is characterised in that described first connecting shaft
(2) end is circumferentially provided with defining flange (21) along it.
A kind of double end connecting pin the most according to claim 1, it is characterised in that described first connecting shaft
(2) having end face groove (23) on end face, described end face groove (23) is along the end face of the first connecting shaft (2)
Extending to the internal direction of the first connecting shaft (2), described end face groove (23) is along the first connecting shaft (2)
Extend radially through the outer peripheral sidewall of the first connecting shaft (2).
A kind of double end connecting pin the most according to claim 8, it is characterised in that described first connecting shaft
(2) centre bore (24), described centre bore (24) and described end face groove is had in along its center axis direction
(23) connection.
10. a toy building set, it is characterised in that include the first constructional pieces, the second constructional pieces and such as right
Require a kind of double end connecting pin described in 1～9 any one, described first constructional pieces is provided with and described the
The circular connecting hole that one connecting shaft (2) matches, described second constructional pieces is provided with and is connected with described second
The flower-shape connecting hole that axle (1) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232977.0U CN205613051U (en) | 2016-03-24 | 2016-03-24 | Double -end connecting pin and building blocks subassembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232977.0U CN205613051U (en) | 2016-03-24 | 2016-03-24 | Double -end connecting pin and building blocks subassembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205613051U true CN205613051U (en) | 2016-10-05 |
Family
ID=57032736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620232977.0U Active CN205613051U (en) | 2016-03-24 | 2016-03-24 | Double -end connecting pin and building blocks subassembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205613051U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422370A (en) * | 2016-10-19 | 2017-02-22 | 上海未来伙伴机器人有限公司 | Flat block building and combining device |
| KR20180080026A (en) * | 2017-01-03 | 2018-07-11 | 주식회사 이창의스쿨 | Block connectors for toys |
| KR20180002619U (en) * | 2017-02-23 | 2018-09-03 | 남해원 | Hinge structure for block |
| CN112654406A (en) * | 2018-09-07 | 2021-04-13 | 乐高公司 | Toy construction set and method of assembling such a toy construction set |
-
2016
- 2016-03-24 CN CN201620232977.0U patent/CN205613051U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422370A (en) * | 2016-10-19 | 2017-02-22 | 上海未来伙伴机器人有限公司 | Flat block building and combining device |
| KR20180080026A (en) * | 2017-01-03 | 2018-07-11 | 주식회사 이창의스쿨 | Block connectors for toys |
| KR101923582B1 (en) * | 2017-01-03 | 2018-11-29 | 주식회사 이창의스쿨 | Block connectors for toys |
| KR20180002619U (en) * | 2017-02-23 | 2018-09-03 | 남해원 | Hinge structure for block |
| KR200488588Y1 (en) * | 2017-02-23 | 2019-05-21 | 남해원 | Hinge structure for block |
| CN112654406A (en) * | 2018-09-07 | 2021-04-13 | 乐高公司 | Toy construction set and method of assembling such a toy construction set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205613051U (en) | Double -end connecting pin and building blocks subassembly thereof | |
| KR102070710B1 (en) | A toy building set | |
| US9004215B2 (en) | Coupling arrangement and coupling element | |
| CN205759722U (en) | A kind of connecting pin and toy building set thereof | |
| WO2015075970A1 (en) | Turbine rotor assembly, blade stop plate for turbine rotor assembly, and method for assembling blade stop plate | |
| CN102762887A (en) | Centrifugal pendulum mechanism | |
| BR102015001180A2 (en) | multi component sprocket | |
| US10065107B2 (en) | Constrained puzzle | |
| US11139706B2 (en) | Electric motor and rotor thereof | |
| JP6332261B2 (en) | Bearing support device | |
| CN103216519A (en) | Spherojoint | |
| CN110609360A (en) | Optical fiber connector and optical fiber contact element thereof | |
| US9057405B2 (en) | Method for installing a rolling-element bearing | |
| KR101521379B1 (en) | Cage for radial roller bearing | |
| US10992194B2 (en) | Rotor of an inner-rotor motor with reliable engagement between the shaft and the permanent magnets | |
| JP2007285356A (en) | Oldham coupling and motor with encoder having same | |
| CN106979193B (en) | Fastener and splicing part and fastener connector and assembly component and robot | |
| US20160129557A1 (en) | Adapter | |
| CN205691855U (en) | A kind of telescope focal length fine tuning structure | |
| CN202710311U (en) | Over-running test clamp | |
| CN109147721A (en) | A kind of hammered string instrument and piano | |
| JP2016205402A (en) | Blade stop plate | |
| JP6143839B1 (en) | Shaft coupling and mounting method of shaft coupling to shaft | |
| US4610642A (en) | Ring segment connection arrangement for link coupling | |
| WO2018220875A1 (en) | Assembly set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Lefeng Inventor after: Wu Yumiao Inventor after: Xing Dingkai Inventor before: Liu Lefeng Inventor before: Wu Yumiao Inventor before: Xin Dingkai |
|
| CB03 | Change of inventor or designer information |